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EL4212B Service Manual
TABLE OF CONTENTS
PAGE
1.
PRECAUTION AND NOTICES ------------------------------------------------------------------------------------- 1~2 1.1. SAFETY PRECAUTIONS ---------------------------------------------------------------------------------------- 1 1.2. PRODUCT SAFETY NOTICE ----------------------------------------------------------------------------------- 1 1.3. SERVICE NOTES-------------------------------------------------------------------------------------------------- 1
2. 3.
SERVICE TOOL & EQUIPMENT REQUIRED --------------------------------------------------------- 2
SPECIFICATIONS ----------------------------------------------------------------------------------------------------- 2~6 3.1. PRODUCT SPECIFICATIONS ----------------------------------------------------------------------------- 2 3.2. SUPPORTING TIMINGS ------------------------------------------------------------------------------------- 3 3.3. D-SUB CONNECTOR -------------------------------------------------------------------------------------------- 3~6 3.4. VIDEO SIGNAL TIMINGS --------------------------------------------------------------------------------------- 6 EXPLODED VIEW AND PARTS LIST --------------------------------------------------------------------------- 7~8 4.1. EXPLODED VIEW ------------------------------------------------------------------------------------------------ 7 4.2. EXPLODED VIEW PARTS LIST -------------------------------------------------------------------------------- 8 BLOCK DIAGRAM ---------------------------------------------------------------------------------------------------- 9 SCHEMATIC DIAGRAM -------------------------------------------------------------------------------------------- 10~31 6.1. PC- Interface ------------------------------------------------------------------------------------------------------- 10 6.2. MST5151LA -------------------------------------------------------------------------------------------------------- 11 6.3. MEMORY DDRRAM---------------------------------------------------------------------------------------------- 12 6.4. SAA7117A ---------------------------------------------------------------------------------------------------------- 13 6.5. SAA7117B ---------------------------------------------------------------------------------------------------------- 14 6.6. ADC ----------------------------------------------------------------------------------------------------------------- 15 6.7. MCU----------------------------------------------------------------------------------------------------------------- 16 6.8. Video JACK -------------------------------------------------------------------------------------------------------- 17 6.9. SCART INPUT ----------------------------------------------------------------------------------------------------- 18 6.10. SCART 3 ------------------------------------------------------------------------------------------------------------ 19 6.11. TUNER -------------------------------------------------------------------------------------------------------------- 20 6.12. Teletext SAA5361 -------------------------------------------------------------------------------------------------- 21 6.13. Video Switch Interface -------------------------------------------------------------------------------------------- 22 6.14. AudioPreamp_Earphone ----------------------------------------------------------------------------------------- 23 6.15. SRS WOW----------------------------------------------------------------------------------------------------------- 24 6.16. LVDSOUT ---------------------------------------------------------------------------------------------------------- 25 6.17. DC_DC-------------------------------------------------------------------------------------------------------------- 26 6.18. Earphone Board --------------------------------------------------------------------------------------------------- 27 6.19. Amplifier ------------------------------------------------------------------------------------------------------------ 28 6.20. De-POP ------------------------------------------------------------------------------------------------------------- 29 6.21. Keypad & IR-------------------------------------------------------------------------------------------------------- 30 6.22. SMPS ---------------------------------------------------------------------------------------------------------------- 31 WORKING THEOREM----------------------------------------------------------------------------------------------- 32~33 WIRING DIAGRAM--------------------------------------------------------------------------------------------------- 34 PCB LAYOUT ----------------------------------------------------------------------------------------------------------- 35~48 9.1. MAIN PCB TOP VIEW ------------------------------------------------------------------------------------------- 35 9.2. MAIN PCB BOTTOM VIEW ------------------------------------------------------------------------------------- 36 9.3. AUDIO PCB TOP VIEW ----------------------------------------------------------------------------------------- 37 9.4. AUDIO PCB BOTTOM VIEW ----------------------------------------------------------------------------------- 38 9.5. EAR PCB TOP VIEW --------------------------------------------------------------------------------------------- 39 9.6. EAR PCB BOTTOM VIEW--------------------------------------------------------------------------------------- 40 9.7. SPEAKER PCB TOP VIEW -------------------------------------------------------------------------------------- 41 9.8. SPEAKER PCB BOTTOM VIEW-------------------------------------------------------------------------------- 42 9.9. KEYPAD PCB TOP VIEW --------------------------------------------------------------------------------------- 43 9.10. KEYPAD PCB BOTTOM VIEW --------------------------------------------------------------------------------- 44 9.11. IR PCB TOP VIEW------------------------------------------------------------------------------------------------ 45
4.
5. 6.
7. 8. 9.
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EL4212B Service Manual
9.12. IR PCB BOTTOM VIEW ----------------------------------------------------------------------------------------- 46 10. TROUBLE SHOOTING FLOW CHART ------------------------------------------------------------------------- 47~50 10.1. NO POWER -------------------------------------------------------------------------------------------------------- 47 10.2. NO VOICE---------------------------------------------------------------------------------------------------------- 48 10.3. NO VIDEO --------------------------------------------------------------------------------------------------------- 49 10.4. NO DISPLAY------------------------------------------------------------------------------------------------------- 50 ADJUSTMENT ---------------------------------------------------------------------------------------------------------- 51~52 11.1. ADJUSTMENT CONDITIONS AND PRECAUTIONS ------------------------------------------------------- 51 11.2. MAIN ADJUSTMENTS ------------------------------------------------------------------------------------------- 51 11.3. ALIGNMENT PROCEDURES----------------------------------------------------------------------------------- 51~52 ELECTRICAL PARTS LIST----------------------------------------------------------------------------------------- 53~74
11.
12.
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EL4212B Service Manual
1. PRECAUTION AND NOTICES
1.1. SAFETY PRECAUTIONS This plasma TV is manufactured and tested on a ground principle that a user's safety comes first. However, improper use or installation may cause damage to the plasma TV as well as to the user. Carefully go over the following WARNINGS before installing and keep this guide handy. WARNINGS: This plasma TV should be operated only at the correct power sources indicated on the label on the rear end of the plasma TV. If you're unsure of the power supply in your residence, consult your local dealer or power company. Do not try to repair the plasma TV by yourself as it contains no user-serviceable parts. This plasma TV should only be repaired by a qualified technician. Do not remove the plasma TV cabinet. There is high-voltage parts inside that may cause electric shock to human bodies, even when the power cord is unplugged. Stop using the plasma TV if the cabinet is damaged. Have it checked by a service technacian. Put your plasma TV only in a clean, dry environment. If it gets wet, unplug the power cable immediately and consult your service technician. Always unplug the plasma TV before cleaning it. Clean the cabinet with a clean, dry cloth. Apply non-ammonia based cleaner onto the cloth, not directly onto the glass screen. Keep the plasma TV away from magnetic objects, motors, TV sets, and transformer. Do not place heavy objects on the plasma TV or power cord.
1.2. PRODUCT SAFETY NOTICE Many electrical and mechanical parts in this chassis have special safety visual inspections and the protection afforded by them cannot necessarily be obtained by using replacement components rated for higher voltages, wattage, etc. Before replacing any of these components read the parts list in this manual carefully. The use of substitute replacement parts which do not have the same safety characteristics as specified in the parts list may create shock, fire, or other hazards.
1.3. SERVICE NOTES 1. When replacing parts or circuit boards, clamp the lead wires around terminals before soldering. 2. When replacing a high wattage resistor (more than 1W of metal oxide film resistor) in circuit board, keep the resistor about 5mm away from circuit board. 3. Keep wires away from high voltage, high temperature components and sharp edges. 4. Keep wires in their original position so as to reduce interference. 5. Usage of this product please refer to also user's manual.
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EL4212B Service Manual
2. SERVICE TOOL & EQUIPMENT REQUIRED
1. 2. 3. 4. 5. 6. 7. 8. 9. Signal gen. Multimeter Oscilloscope Screw driver Soldering Iron Absorber Solder Dummy load (5 /200w) DVD player
3. SPECIFICATIONS
3.1. PRODUCT SPECIFICATIONS Plasma Panel Power Management (OFF MODE) Displayable Resolution Display Color Aspect ratio Contrast Ratio Brightness Active Display Area Power 42" plasma < 4W VESA 1280×1024 @60Hz max. 16.7M Color Max. (8bit/color) 16:9 (In bright room with 100Lux at center) 10000 : 1 (typical)(in dark room, panel only) 1500 cd/m2 (typical) (in dark room, panel only) 920.1mm×518.4mm Voltage: 100~240 V Typical : 200W full white window pattern Speaker 5W×2 (internal) 15W×2 (external for option)
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3.2. Supporting Timings The following is supporting display mode. If any signal of unsupported resolution is input, the display will stop working, or appear abnormal condition. In order to display the best screen quality, please select those following display mode. Mode VGA Resolution 640×480@60 Hz 640×480@72 Hz 640×480@75Hz 800×600@56Hz 800×600@60Hz 800×600@72Hz 800×600@75Hz 1024×768@60Hz 1024×768@70Hz 1024×768@75Hz 1280×1024@60Hz 640×350@70Hz 720×400@70Hz 848×480@60Hz 848×480@75Hz 960×720@60Hz 960×720@75Hz Horizontal Frequency (kHz) 31.469 37.861 37.500 35.156 37.879 48.077 46.875 48.363 56.467 60.023 63.981 31.469 31.469 29.830 37.569 45.117 56.400 Vertical Frequency (Hz) 59.940 72.809 75.000 56.250 60.317 72.188 75.000 60.004 70.069 75.029 60.020 70.087 70.087 60.019 74.839 59.916 758.000 Pixel Frequency (MHz) 25.175 31.500 31.500 36.000 40.000 50.000 49.500 65.000 75.000 78.750 108.000 25.175 28.322 31.500 40.875 57.750 72.417
SVGA
XGA
SXGA OTHER
3.3. CONNECTORS Connector pin assignments for VGA cable The signal cable connector shall be a molded-over, shield twisted pair cable. The cable shall be 1.8 meters long. The pin assignments shall be listed as below: PIN 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 D-SUB Connector Red Video Green Video Blue Video RX_SCL GND GNC GND GND +5V for DDC GND TX_SDA SDA H-sync V-sync SCL -303/13/2006
EL4212B Service Manual
Connector pin assignments for DVI cable DVI: 24 pins DVI connector is designed to match with DVI-D digital signal cable, the pin assignment is as the following:
Pin 1 2 3 4 5 6 7 8
Signal Assignment TMDS RX2TMDS RX2+ TMDS Ground Floating Floating DDC Clock DDC Data Floating
Pin 9 10 11 12 13 14 15 16
Signal Assignment TMDS RX1TMDS RX1+ TMDS Ground Floating Floating +5V Power Ground Hot Plug Detect
Pin 17 18 19 20 21 22 23 24
Signal Assignment TMDS RX0TMDS RX0+ TMDS Ground Floating Floating TMDS Ground TMDS Clock+ TMDS Clock-
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EL4212B Service Manual
Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 SCART 1 connector details SCART 1 arrangement Signal Signal level Audio output B (right) TV 0.5V rms Audio input B (right) 0.5V rms Audio output A (left) TV 0.5V rms Ground (audio) -Ground (blue) -Audio input A (left) 0.5V rms Blue input 0.7V Function select (AV control) High(9.5-12V)-AV mode / Low(0-2V)-TVmode Ground (green) -Comms data 2 -Green input 0.7V Comms data 1 -Ground (red) -Ground (blanking) -Red input 0.7V RGB switching control High (1-3V) - RGB / Low (0-0.4V) - Composite Ground (video input & output) -Ground (RGB switching control) -Video output (composite) TV 1V including sync Video input (composite) 1V including sync Common ground (shield) -Impedance <1kohm >10kohm <1kohm -->10kohm 75ohms >10kohm --75ohms ---75ohms 75ohms --75ohms 75ohms --
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EL4212B Service Manual
Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 SCART 2 connector details SCART 1 arrangement Signal Signal level Audio output B (right) 0.5V rms Audio input B (right) 0.5V rms Audio output A (left) 0.5V rms Ground (audio) -Ground (blue) -Audio input A (left) 0.5V rms Blue input 0.7V Function select (AV control) High(9.5-12V)-AV mode / Low(0-2V)-TVmode Ground (green) -Comms data 2 -Green input 0.7V Comms data 1 -Ground (red) -Ground (blanking) -Chrominance/Red input 0.3V / 0.7V RGB switching control High (1-3V) - RGB / Low (0-0.4V) - Composite Ground (video input & output) -Ground (RGB switching control) -Video output (composite) 1V including sync Luminance/Video input 1V including sync (composite) Common ground (shield) -Impedance <1kohm >10kohm <1kohm -->10kohm 75ohms >10kohm --75ohms ---75ohms 75ohms --75ohms 75ohms --
3.4. Video Signal Timings Input from CVBS, S-Video & YcbCr: Lines per Horizontal frame frequency(kHz) 525 15.734 625 15.625 625 15.625 525 15.734 525 15.734 625 15.625 Input from YpbPr: Horizontal frequency (kHz) 15.735 15.625 31.47 45.00 33.75
Vertical frequency(Hz) 60 50 50 60 60 50
System NTSC PAL(B,G,H,D,I) SECAM 4.43NTSC PAL-M PAL-N
Vertical frequency (Hz) 60 50 60 60 60
Signal SDTV 525i SDTV 625i SDTV 480p HDTV 720p HDTV 1080i
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4.1 EXPLODED VIEW
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4.2. EXPLODED VIEW PARTS LIST
Ref. No. Source Part No. DESCRIPTION 1F01 2024266809P FRONT BEZEL 1F02 2044266201P FUNCTION KEY 1F03 2084730102P SCREW,BND T+ 1F06 2084730102P SCREW,BND T+ 1F07 2084730102P SCREW,BND T+ 1F22 2071869600P BRACKET,FIX 1F23 2084740122P SCREW,BND T+ 1F24 2082740082P SCREW,BND+ 1F30 2071872700P BRACKET,FIX 1F36 2084730102P SCREW,BND T+ 1F38 2082630062P SCREW 1F40 2071872800P BRACKET,FIX 1F41 2071873300P BRACKET,FIX 1F42 2084730122P SCREW,BND T+ 1F43 2082630062P SCREW 1F48 2071872400P BRACKET,FIX 1F49 2086240082P SCREW,P SW+ 1F54 2071870000P BRACKET,FIX 1F55 2071873000P BRACKET,FIX 1F57 2082630062P SCREW 1F59 2080040062P SCREW,SPE 1F60 2071670200P SHIELD PLATE 1F61 2071874000P BRACKET,FIX 1F63 2082630062P SCREW 1F66 2080003700P SCREW,SPE 1F67 2071874100P BRACKET,FIX 1F68 2082630062P SCREW 1F69 2080003700P SCREW,SPE 1F70 2071670100P SHIELD PLATE 1F72 2086240082P SCREW,P SW+ 1F73 2084730082P SCREW,BND T+ 1F77 2080004900P SCREW,SPE 1F84 2084730122P SCREW,BND T+ 2C01 2071972100P METAL FITTG 2C02 2084740124P SCREW,BND T+ 2C03 2082630064P SCREW 2C05 2087340124P SCREW,B SPW+ 5B01 2071869300P BRACKET,FIX 5B02 2039819201P FOOT PAD 5B03 2028258103P STAND 5B04 2084740102P SCREW,BND T+ 5B05 2071867701P BRACKET,FIX 5B06 2086240122P SCREW,P SW+ SPECIFICATION Q`TY ABS 94HB BLACK C JV427A31E 1 ABS 94HB PS-7604B 1 M3*10(BNDT+) 2 M3*10(BNDT+) 2 M3*10(BNDT+) 2 SECC T=1.0MM FOR SPEAKER 5W 2 M4*12 (BND T+) 4 M4X8(BND+) 4 SECC t=2 VESA SUPPORT R LG 1 M3*10(BNDT+) 2 M3X6 P=0.5 2 SECC t=2 VESA SUPPORT L LG 1 SECC T=1.0 SPEAKER JACK L (LG) 1 M3X12(BND T+) 1 M3X6 P=0.5 2 SECC t=2 FOR STAND HOLDER LG 1 4X8(+) SWRM-3 ZMC2-C 4 SECC T=1MM FOR ACIN LG 1 JV427A31U/E SECC T=0.8 ACINLET 1 M3X6 P=0.5 2 M4*8 PMS-3/W 2 SPTE T=0.3MM FOR ACINLET 1 JV427A31E SECC T=0.8M MAIN BD 1 M3X6 P=0.5 4 ISZZTER001A M3*6L MSWR17/FZMYI 2 JV427A31E SECC T=0.8MM 210-2S 1 M3X6 P=0.5 2 ISZZTER001A M3*6L MSWR17/FZMYI 5 SPTE T=0.3MM FOR MAIN BOARD 1 4X8(+) SWRM-3 ZMC2-C 4 M3X8(BND T+) 6 M3*8 T24 F NI 2 M3X12(BND T+) 6 AL5052 T=1 FOR B/C PATON BLK C 1 M4X12(BND T+) (BLK) 16 M3*6 P=0.5 BLACK 15 M4*12 B SPW+ BLACK 4 SPCC T=6.0MM FOR BASE COVER 2 RUBBER 119.5*10*2T 4 ABS 94HB BLACK C JV427A31E 2 M4X10(BND T+) 8 AL 5052 FOR STAND BAR BLACK C 2 M4*12 PSW+ 6 REMARK
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EL4212B Service Manual
5. BLOCK DIAGRAM
A9V
DC TO DC L4973D5.1
AV_5V
I105(SOT223)+3-3V_S LD1117-3.3V I107(SOT223)+1-8V AP1117-1.8V I108(SOT223)+3-3V_BS LD1117-3.3V I110(SOT223)+1-8BV AP1117-1.8V I127(SOT223)VCCVT LD1117-3.3V I118(TO252) 78M05
For I100,I101 24C21,I103,I122,I139,I114,I115 SWITCH IC For I106 SAA7119 +3.3V I100 24C21
For I106 SAA7119 +1.8V
VGA D_sub 15 pin INPUT
For I109 SAA7119 +3.3V
JV427A31E Block Diagram
DVI-24 INPUT
For I109 SAA7119 +1.8V For I123 SAA5361,I125 SRAM +3.3V For I117 TUNER,I130 MSP3450 +5V P102 IR For I121 MM1492 +9V P104 KEYPAD
LG PDP POWER SUPPLY DC V12AMP
I101 24C21
I125 SRAM
+5VTuner +9V AHVSUP
I120(TO252) 78M09 I128(TO252) 78M08
For I130 MSP 3450 +8V I124 24C16 I123 SAA5361 I117 TUNER X104 12MHz I112 80C51 128K I113 24C32 I140 24C04 X103 24MHz
STB_5V
I133(STO223)3_3VA LD1117-3.3V I134(SOT223)2_5VM LD1117-2.5V I132(TO262) LD1117-1.8V
For I130 MSP 3450 +8VI113 24C32,I140 24C04,I112 8051 MCU For I102 MST5151LA +3.3V
For I102 MST5151LA,I104 DDR +2.5V
TV_CVBS
+1-8V_NEW
For I102 MST5151LA +1.8V
VOUT FSW_T TT_R TT_G TT_B
If PIP/POP MAIN YPbPr1 OR YPbPr2 TO SCALER
I137(SOT223)V33SW LD1117-3.3V
RCA OUT AD[0..3]
For I131 AP8210 +3.3V For I111 MST9883C +3.3V
V33
PDP_EN AOUT RXE[0..3]
I102 MST5151LA LG PDP
YPbPr1
I114 ADG774
HD1
YPbPr2
VOUT1 YOUT1 COUT1
I106 SAA7117A
VDXA[0..7] SLE VDXA[8..15]
YPbPr1 YPbPr2
I115 ADG774
X100 14.318MHz
HD2
X101 24.576MHz If PIP/POP SUB YPbPr1 OR YPbPr2 TO MST9883 I111 MST9883C
MCLK AR[0..11] DATA[0..31]
I104 DDR128M
SV1 SV2 AV1 AV2 SCART1 SCART2 AV1SV1_RL AV2SV2_RL SCART1_RL SCART2_RL
VOUT2 YOUT2 COUT2
I121 MM1492 I109 SAA7117B I131 AP8210
SRS RL_OUT TO AUDIO AMP
X102 24.576MHz
SCART1_R SCART1_G SCART1_B SCART1_AV SCART1_FSW1 SCART2_R SCART2_G SCART2_B SCART2_AV
SWITCH_RL HD1_RL HD2_RL PC_RL SIF/MONO FSW NC7SBU3157
I130 MSP3450
SRS RL_IN SCART1 OUT_RL SCART2 OUT_RL AUDIO OUT_RL
RCA OUT
X106 18.432MHz
SCART1_FSW2
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EL4212B Service Manual
6. SCHEMATIC DIAGRAM
6.1. PC- Interface
GVCC 2
GVCC
GVCC 2
GVCC
02 PC_Interface
D103 R100 10K I100 24C21/SMD/DIP GVCK GSCL GSDA 7 6 5 VCC VCLK SCL SDA NC1 NC2 NC3 GND R106 R107 100 100 SCL_DVI SDA_DVI 8 1 2 3 4 SCL_DVI SDA_DVI C100 0.01U GVCC D107
GVCC1 2
GVCC1 2 D104 LL4148 GVCC1 GVCC1 R415 R103 1K I101 CVCK DSCL DSDA 7 6 5 VCC VCLK SCL SDA NC1 NC2 NC3 GND 8 1 2 3 4 R109 R111 L101 R30/0603 R30/0603 R116 47 47 47 C106 C107 C108 0.047U 0.047U 0.047U R30/0603 L100 L104 2 R30/0603 R60/0603 R124 R125 75R/1% 75R/1% D110 5.6V 1 C109 C110 C111 12P 12P 12P R126 75R/1% R117 R119 R112 R113 100 C102 47 47 47 C103 C104 C105 0.01U 0.047U 0.047U 0.047U C101 0.01U GVCC1 VS_I (NC)10K R104 3.3K 1 R105 3.3K
D101 LL4148 12 D105 LL4148 1
R101 D102 3.3K LL4148 12 D106 LL4148 1
R102 3.3K
GVCC1 12
LL4148 12
D108 LL4148 1
LL4148
R416 (NC)0
P100 27 SHELL1 NC1 DATA2DATA2+ DATA2/4_SHLD DATA4DATA4+ DDC_CLK DDC_DATA A_VSYNC DATA1DATA1+ DATA1/3_SHLD DATA3DATA3+ +5V GND H_PLUG_DET DATA0DATA0+ DATA0/5_SHLD DATA5DATA5+ CLK_SHLD CLK+ CLKA_RED A_GREEN A_BLUE A_HSYNC A_GND1 NC2 A_GND2 SHELL2 DVI-24 25 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 C1 C2 C3 C4 C5 C6 26 R108 R110 10 10 RX2RX2+
24C21/SMD/DIP 17 RX2RX2+ P101 D_sub 15 PIN 6 1 11 7 2 12 8 3 13 9 4 14 10 5 15 16 VR+ TX_SDA VG+ VB+ G5V RX_SCL R122 GVCC1 10K 2 VS_I L102 L103
SOG RIN+ RINGIN+ GINBIN+ BINHS_RGB VS_RGB
R114 R115 GDC5V R118
10 10
RX1RX1+
RX1RX1+
GDC5V
10K R120 R121 R123 100 10 10 RX0RX0+ HPD_CAB RX0RX0+
D109 5.6V 1 VGA_CAB AV_5V D113 LL4148 1 1 D114 LL4148 2 2 GVCC1
R128 R127
10 10
RXC+ RXC-
RXC+ RXC-
28
AV_5V
GVCC1 GDC5V AV_5V 1 1 D112 LL4148 D100 5.6V 1 D111 LL4148 2 2 RX_SCL TX_SDA RXD TXD 2 GVCC D115 LL4148 12 D118 LL4148 1
GVCC1 2
GVCC1 2 D117 D120 LL4148 1 12
D116 LL4148 VR+ D119 LL4148 1
2
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LL4148 VG+
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EL4212B Service Manual
6.2. MST5151LA
for BUSTYPE H- 8 bit parallel bus L- 4 bit ddr direct bus
1
If use LT1084-1.8 V 240 open & 390 = 0 then: L173 STB_5V R201/L0805 I137 C625 + C626 0.1U 4 IN OUT ADJ AP1084K18A/TO263 +1.8V Regulator TO-263 C115 0.1U R133 1K 3 2 1 R578 0/390 MVref R577 (NC)240 + C627 100U/16V MVref R132 1K C112 0.1U C113 0.1U +1-8V_NEW R131 1K +VDDM
03 SCALER
+AVDD_DVI STB_5V AV_5V STB_5V AV_5V 3_3VA 2_5VM C114 RX2+ RX2RX1+ RX1RX0+ RX0RXC+ RXC+AVDD_DVI SDA_DVI SCL_DVI R135 390 HS_RGB VS_RGB BIN+ BINSOG GIN+ GINRIN+ RINPR+ PRSOY Y+ YPB+ PBRX2+ RX2RX1+ RX1RX0+ RX0RXC+ RXCSDA_DVI SCL_DVI HS_RGB VS_RGB BIN+ BINSOG GIN+ GINRIN+ RINPBPB+ YY+ SOY PRPR+ C117 C118 VVCLK1 VDXA[0..7] VVCLK1 VDXA0 VDXA1 VDXA2 VDXA3 VDXA4 VDXA5 VDXA6 VDXA7 VVCLK2 VDXB0 VDXB1 VDXB2 VDXB3 VDXB4 VDXB5 VDXB6 VDXB7 0.1U 0.1U VCLK1 VDXA0 VDXA1 VDXA2 VDXA3 VDXA4 VDXA5 VDXA6 VDXA7 VDXB0 VDXB1 VDXB2 VDXB3 VDXB4 VDXB5 VDXB6 VDXB7 PW_DOWN HPD_CAB SELYPbPr2 SELYPbPr1 HWRESET HWRESET R136 100 C133 0.1U INT ALE RD WR PW_DOWN HPD_CAB VVS SELYPbPr2 VVCLK2 VHS SELYPbPr1 3 4 6 7 9 10 12 13 15 18 19 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 40 41 42 43 44 DVI_R+ DVI_RDVI_G+ DVI_GDVI_B+ DVI_BDVI_CK+ DVI_CKREXT DDCD_DA DDCD_CK HSYNC1 VSYNC1 BIN1P BIN1M SOGIN1 GIN1P GIN1M RIN1P RIN1M BIN0M BIN0P GIN0M GIN0P SOGIN0 RIN0M RIN0P HSYNC0 VSYNC0 RMID REFP REFM 20P X100 14.318MHz C116 20P R134 1M +VDDP +AVDD_ADC +VDD_MPLL +VDDM +AVDD_PLL2 +AVDD_PLL +VDDC
100U/16V
POWER
*Crystal for Scaler 14.318MHz
RX2+ RX2-
DVI INPUT
RX1+ RX1RX0+ RX0RXC+ RXCSDA_DVI SCL_DVI
TP100 255 254 8 14 256 47 80 183 202 222 238 133 145 106 122 159 174 129 62 77 99 151 180 213 225 246 192 240 250 249 248 247 244 243 242 241 237 236 235 234 233 232 231 230 229 228 199 198 197 196 195 194 191 187 186 185 184
TP101 RXO2RXOCTP104 RXO2+ RXOC+ TP107 RXO3-
TP102
PANEL INTERFACE
21 38
XOUT
XIN
16
RXO0TP103 RXO0+
AVDD_ADC AVDD_ADC
AVDD_DVI AVDD_DVI AVDD_MPLL
BYPASS
AVDD_PLL
AVDD_PLL2
BUSTYPE
AIWS AISCK AISD AIMCK NC30 NC29 NC28 NC27 NC26 NC25 NC24 NC23 NC22 NC21 NC20 NC19 NC18 NC17 NC16 NC15 NC14 NC13 NC12 NC11 NC10 NC9 NC8 NC7 NC6
VDDM VDDM VDDM VDDM VDDM VDDM
VDDP VDDP VDDP VDDP VDDP VDDP
VDDC VDDC VDDC VDDC VDDC VDDC VDDC VDDC
TP105
HS_RGB VS_RGB
BIN+ BINSOG GIN+ GINRIN+ RINPR+ PRSOY Y+ YPB+ PB-
LVB0M LVB0P LVB1M LVB1P LVB2M LVB2P LVBCKM LVBCKP LVB3M LVB3P LVA0M LVA0P LVA1M LVA1P LVA2M LVA2P LVACKM LVACKP LVA3M LVA3P MVREF
227 226 221 220 219 218 217 216 215 214 211 210 209 208 207 206 205 204 201 200 MVref 124 173 154 120 101 150 149 148 147 144 143 142 141 140 139 138 137 136 135 132 131 130 127 126 125 153 121 172 171 170 169 168 167 166 165 164 163 162 161 158 157 156 155 MVref DQS0 DQS1 DQS2 DQS3 AR11 AR10 AR9 AR8 AR7 AR6 AR5 AR4 AR3 AR2 AR1 AR0 WE CAS RAS SBA0 SBA1 MCLK+ MCLKCKE DQM0 DQM1 MDATA0 MDATA1 MDATA2 MDATA3 MDATA4 MDATA5 MDATA6 MDATA7 MDATA8 MDATA9 MDATA10 MDATA11 MDATA12 MDATA13 MDATA14 MDATA15 MDATA16 MDATA17 MDATA18 MDATA19 MDATA20 MDATA21 MDATA22 MDATA23 MDATA24 MDATA25 MDATA26 MDATA27 MDATA28 MDATA29 MDATA30 MDATA31
RXO0RXO0+ RXO1RXO1+ RXO2RXO2+ RXOCRXOC+ RXO3RXO3+ RXE0RXE0+ RXE1RXE1+ RXE2RXE2+ RXECRXEC+ RXE3RXE3+
TP106 RXO1TP108 RXO1+ RXO3+
TP109
VGA INPUT
RXE0RXE0+ RXE1RXE1+ RXE2RXE2+ RXECRXEC+ RXE3RXE3+
Y,Pb,Pr INPUT
I102 MST5151LA
DQS0 DQS1 DQS2 DQS3 MADR[11] MADR[10] MADR[9] MADR[8] MADR[7] MADR[6] MADR[5] MADR[4] MADR[3] MADR[2] MADR[1] MADR[0] WEZ CASZ RASZ BADR[0] BADR[1] MCLK MCLKZ MCLKE DQM[0] DQM[1] MDATA[0] MDATA[1] MDATA[2] MDATA[3] MDATA[4] MDATA[5] MDATA[6] MDATA[7] MDATA[8] MDATA[9] MDATA[10] MDATA[11] MDATA[12] MDATA[13] MDATA[14] MDATA[15] AUMCK AUSD AUSCK AUWS AUMUTE SPDIF NC1 NC2 NC3 NC4 NC5 MDATA[31] MDATA[30] MDATA[29] MDATA[28] MDATA[27] MDATA[26] MDATA[25] MDATA[24] MDATA[23] MDATA[22] MDATA[21] MDATA[20] MDATA[19] MDATA[18] MDATA[17] MDATA[16]
DQS0 DQS1 DQS2 DQS3
DDR RAM I/F
+3.3AVDD for AVDDA
3_3VA L105 1 2 + C120 0.1U C121 0.1U R201/L0805 C119 10U/50V +AVDD_ADC
VVCLK2 VDXB[0..7] VDXB[0..7]
66 67 68 69 70 71 72 73 74 54 55 56 57 58 59 60 61 97 96 95 94 65 64 251 76 81 82 83 84 85
VI_CK VI_DATA[0] VI_DATA[1] VI_DATA[2] VI_DATA[3] VI_DATA[4] VI_DATA[5] VI_DATA[6] VI_DATA[7] VI_DATA[8] VI_DATA[9] VI_DATA[10] VI_DATA[11] VI_DATA[12] VI_DATA[13] VI_DATA[14] VI_DATA[15] GPIO[0] GPIO[1] GPIO[2]/VVS GPIO[3] GPIO[4]/VCLK2 GPIO[5]/VHS GPIO[6] VCTRL HWRESET INT ALE RDZ WRZ
AR[0..11] WE CAS RAS SBA0 SBA1 MCLK+ MCLKCKE DQM0 DQM1
VIDEO INPUT
+3.3AVDD for AVDD_PLL
3_3VA L106 1 2 R201/L0805 + C122 10U/50V
+AVDD_PLL
2
1.8V for VDDC
L174 1 2 R201/L0805
C123 0.1U
+1-8V_NEW +VDDC
+ C124 10U/50V
C125 C126 C127 C128 C129 C130 C131 C132 0.1U 0.1U 0.1U 0.1U 0.1U 0.1U 0.1U 0.1U
uP INTERFACE
INT RD WR ALE
INT RD WR ALE
DBUS[0] DBUS[1] DBUS[2] DBUS[3] DBUS[4] DBUS[5] DBUS[6] DBUS[7] PWM5 PWM4 PWM3 PWM2 PWM1 PWM0 86 87 88 89 90 91 92 93 190 189 188 98 253 252
AD[0..3]
AD0 AD1 AD2 AD3 AD0 AD1 AD2 AD3
1 2 5 11 17 20 39 45 46 63 78 79 100 107 123 128 134 146 152 160 175 181 182 193 203 212 223 224 239 245
GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND
48 49 50 51 52 53 75 176 177 178 179
102 103 104 105 108 109 110 111 112 113 114 115 116 117 118 119
TP110 TP111 TP112 TP113
+3.3AVDD for AVDD_DVI
3_3VA 3_3VA L109 1 2 + C138 0.1U C139 0.1U C136 10U/50V R201/L0805 +AVDD_DVI
+3.3V for VDD_MPLL
+VDD_MPLL L110 1 2 R201/L0805 + C137 10U/50V C140 0.1U
+2.5VM(DDR RAM) for VDDM
2_5VM L111 1 2 C142 C143 C144 C145 C146 C147 0.1U 0.1U 0.1U 0.1U 0.1U 0.1U R201/L0805 + C141 10U/50V +VDDM
MDATA16 MDATA17 MDATA18 MDATA19 MDATA20 MDATA21 MDATA22 MDATA23 MDATA24 MDATA25 MDATA26 MDATA27 MDATA28 MDATA29 MDATA30 MDATA31
+3.3V_AVDD (51562) for AVDD_PLL2
3_3VA MDATA[0..31] 1 R201/L0805 + C134 10U/50V C135 0.1U L108 2 +AVDD_PLL2
+3.3V for VDDP
3_3VA L112 1 2
+VDDP
AV_5V I103 VVCLK1 VVCLK1 2 5 11 14 3 6 10 13 8 S1A S1B S1C S1D S2A S2B S2C S2D GND FSAV330 VCC DA DB DC DD IN /EN 16 4 7 9 12 1 15 VCLK1 VHS VVS R137 10K R140 0 SELCLK PW_DOWN SelYPbPr2 SelYPbPr1 R138 10K R139 10K L186 C154 0.1U R221/0603 3_3VA
R201/L0805 + C148 10U/50V
C149 C150 C151 C152 C153 C622 0.1U 0.1U 0.1U 0.1U 0.1U 0.1U
ADVCLK1 ADVHS ADVVS
ADVCLK1 ADVHS ADVVS
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EL4212B Service Manual
6.3. MEMORY DDRRAM
2_5VM 2_5VM
2_5VM 2_5V_DMQ L113 1 2 + R201/L0805 + C156 22U/50V
04 DDR
C157 0.1U C158 0.1U C159 0.1U C160 0.1U C161 0.1U C162 0.1U C163 0.1U C164 0.1U C165 0.1U C166 0.1U C167 0.1U
2_5VM 2_5V_DMC L114 1 2 C169 0.1U C170 0.1U C171 0.1U C172 0.1U C173 0.1U R201/L0805 + C168 22U/50V
C155 10U/50V
GND
GND
GND
Place this parallel termination close to corresponding memory IC Pins MCLK+ R141 150 MCLKC3 C5 C7 C8 C10 C12 E3 E12 F4 F11 G4 G11 J4 J11 K4 K11 AR[0..11] AR0 AR1 AR2 AR3 AR4 AR5 AR6 AR7 AR8 AR9 AR10 AR11 SBA0 SBA1 MCLKMCLK+ CKE RAS CAS WE DQS0 DQS2 DQS1 DQS3 DQM0 DQM1 SBA0 SBA1 MCLKMCLK+ CKE RAS CAS WE DQS0 DQS2 DQS1 DQS3 DQM0 DQM1 4 3 2 1 RP3 4 3 2 1 RP5 4 3 2 1 D7 D8 E4 E11 L4 L7 L8 L11 N13 RP1 RP 100X4 5 6 7 8 RP 100X4 5 6 7 8 RP 100X4 5 6 7 8 FSDATA[0..31] 2_5V_DMQ 2_5V_DMC FSVREF
VDDQ VDDQ VDDQ VDDQ VDDQ VDDQ VDDQ VDDQ VDDQ VDDQ VDDQ VDDQ VDDQ VDDQ VDDQ VDDQ
VDD VDD VDD VDD VDD VDD VDD VDD VREF
FSADDR0 FSADDR1 FSADDR2 FSADDR3 FSADDR4 FSADDR5 FSADDR6 FSADDR7 FSADDR8 FSADDR9 FSADDR10 FSADDR11 R142 R143 R144 R145 R146 R147 R148 R149 R150 R151 R152 R153 R154 R155 R156 R157 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100
RP2 DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 DQ8 DQ9 DQ10 DQ11 DQ12 DQ13 DQ14 DQ15 DQ16 DQ17 DQ18 DQ19 DQ20 DQ21 DQ22 DQ23 DQ24 DQ25 DQ26 DQ27 DQ28 DQ29 DQ30 DQ31 VSSQ VSSQ VSSQ VSSQ VSSQ VSSQ VSSQ VSSQ VSSQ VSSQ VSSQ VSSQ VSSQ VSSQ VSSQ VSSQ VSSQ VSSQ VSSQ VSSQ B7 C6 B6 B5 C2 D3 D2 E2 K13 K12 J13 J12 G13 G12 F13 F12 F3 F2 G3 G2 J3 J2 K2 K3 E13 D13 D12 C13 B10 B9 C9 B8 B4 B11 D4 D5 D6 D9 D10 D11 E6 E9 F5 F10 G5 G10 H5 H10 J5 J10 K5 K10 FSDATA0 FSDATA1 FSDATA2 FSDATA3 FSDATA4 FSDATA5 FSDATA6 FSDATA7 FSDATA16 FSDATA17 FSDATA18 FSDATA19 FSDATA20 FSDATA21 FSDATA22 FSDATA23 FSDATA8 FSDATA9 FSDATA10 FSDATA11 FSDATA12 FSDATA13 FSDATA14 FSDATA15 FSDATA24 FSDATA25 FSDATA26 FSDATA27 FSDATA28 FSDATA29 FSDATA30 FSDATA31 FSDATA0 FSDATA1 FSDATA2 FSDATA3 FSDATA4 FSDATA5 FSDATA6 FSDATA7 FSDATA8 FSDATA9 FSDATA10 FSDATA11 FSDATA12 FSDATA13 FSDATA14 FSDATA15 4 3 2 1 RP4 4 3 2 1 RP6 4 3 2 1 RP7 4 3 2 1 RP8 FSDATA16 FSDATA17 FSDATA18 FSDATA19 FSDATA20 FSDATA21 FSDATA22 FSDATA23 FSDATA24 FSDATA25 FSDATA26 FSDATA27 FSDATA28 FSDATA29 FSDATA30 FSDATA31 4 3 2 1 RP9 4 3 2 1 RP10 4 3 2 1 RP11 4 3 2 1
FSADDR0 FSADDR1 FSADDR2 FSADDR3 FSADDR4 FSADDR5 FSADDR6 FSADDR7 FSADDR8 FSADDR9 FSADDR10 FSADDR11
N5 N6 M6 N7 N8 M9 N9 N10 N11 M8 L6 M7 N4 M5 M12 M11 N12 N2 M2 L2 L3 B2 H13 H2 B13
A0 A1 A2 A3 A4 A5 A6 A7 A8/AP A9 A10 A11 BA0 BA1 CK CK CKE CS RAS CAS WE DQS0 DQS1 DQS2 DQS3 DM0 DM1 DM2 DM3
RP 100X4 5 6 7 8 RP 100X4 5 6 7 8 RP 100X4 5 6 7 8 RP 100X4 5 6 7 8 RP 100X4 5 6 7 8 RP 100X4 5 6 7 8 RP 100X4 5 6 7 8 RP 100X4 5 6 7 8
MDATA0 MDATA1 MDATA2 MDATA3 MDATA4 MDATA5 MDATA6 MDATA7 MDATA8 MDATA9 MDATA10 MDATA11 MDATA12 MDATA13 MDATA14 MDATA15 MDATA16 MDATA17 MDATA18 MDATA19 MDATA20 MDATA21 MDATA22 MDATA23 MDATA24 MDATA25 MDATA26 MDATA27 MDATA28 MDATA29 MDATA30 MDATA31 MDATA0 MDATA1 MDATA2 MDATA3 MDATA4 MDATA5 MDATA6 MDATA7 MDATA8 MDATA9 MDATA10 MDATA11 MDATA12 MDATA13 MDATA14 MDATA15 MDATA16 MDATA17 MDATA18 MDATA19 MDATA20 MDATA21 MDATA22 MDATA23 MDATA24 MDATA25 MDATA26 MDATA27 MDATA28 MDATA29 MDATA30 MDATA31
MDATA[0..31]
MDATA[0..31]
H/W Swamp
H/W Swamp
DQM00 DQM10 DQM01 DQM11
B3 H12 H3 B12
I104 NT5DS4M32EG-5
Near The DDR-SDRAM IC Stub as short as possible.
GND 2_5V_DMQ FSVREF
L9 M10 M13
RFU1 RFU2 MCL
R158 1K FSVREF
C4 C11 H4 H11 L12 L13 M3 M4 N3
NC NC NC NC NC NC NC NC NC VSS VSS VSS VSS VSS VSS VSS VSS VSS VSS VSS VSS VSS VSS VSS VSS VSS VSS VSS VSS VSS VSS VSS VSS VSS VSS
Near The DDR-RAM IC
E5 E7 E8 E10 F6 F7 F8 F9 G6 G7 G8 G9 H6 H7 H8 H9 J6 J7 J8 J9 K6 K7 K8 K9 L5 L10
GND
R159 1K
C174 0.1U
GND GND GND
Near The DDR-SDRAM IC
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03/13/2006
EL4212B Service Manual
6.4. SAA7117A
VVCLK1 VDXA[0..7] VVCLK1 VDXA0 VDXA1 VDXA2 VDXA3 VDXA4 VDXA5 VDXA6 VDXA7 +3-3V_S AV_5V +3-3V_S L116 R201/0805 + C182 47U/16V YOUTS0 YOUTS1 YOUTS2 YOUTS3 YOUTS4 YOUTS5 YOUTS6 YOUTS7 VDXA0 VDXA1 VDXA2 VDXA3 VDXA4 VDXA5 VDXA6 VDXA7 C185 C186 C187 C188 C189 C620 C621 0.1U 0.1U 0.1U 0.1U 0.1U 0.1U 0.1U C175 10U/50V +3-3V_VB 3 + C183 0.1U I105 LD1117-3.3V GND VI VO 2 L115 R201/0805 C177 C178 C179 C180 C181 + C190 0.1U C176 47U/16V C184 100U/50V 0.1U 0.1U 0.1U 0.1U 0.1U +3-3V_VA
05 SAA7117A
Video Decoder SAA7117
GNDV
4
3
2
1
4
3
2
1
+3-3V_VA CP2 CP 22PX4 +3-3V_VB C191 27P X101 R162 R555 10K R556 C192 27P (NC)4.7K (NC)4.7K 24.576MHZ 156 155 44 66 68 147 XTAL XTALI CE SCL SDA TRSTN
+3-3V_VB
+1-8V_VB L117
+1-8V_VA AV_5V (NC)R201/0805 AV_5V
CP1 CP 22PX4 5 6 7 8 5 6 7 8
* C24,C25 = 10 ~ 27P by X1
STB_5V
45 59 73 95 114 136 151
50 65 101 106 132 142
157
Cut-off the power plane of Crystal Parts Area
37 32 33 24 25 16 17 8 9 VDDA0 VDDA1 VDDA1A VDDA2 VDDA2A VDDA3 VDDA3A VDDA4 VDDA4A
40 41
Video Decoder
ICLK IDQ IGPH IGPV IGP0 IGP1 ITRDY ITRI IPD0 IPD1 IPD2 IPD3 IPD4 IPD5 IPD6 IPD7 HPD0 HPD1 HPD2 HPD3 HPD4 HPD5 HPD6 HPD7 XPD0 XPD1 XPD2 XPD3 XPD4 XPD5 XPD6 XPD7 ADTEST1$ ADTEST2$ ADTEST3$ ADTEST4$ ADTEST5$ ADTEST6$ ADTEST7$ ADTEST8$ ADTEST9$ LLC LLC2_54$ AOUT RTCO RTS0 RTS1 RESON 84 85 91 90 87 89 77 86 R163 0 VVCLK1 C193 33P VVCLK1 I2C_SCL I2C_SDA I2C_SCL I2C_SDA
VXDD
GNDV I2C_SCL I2C_SDA R164 R165 0 0
VDDA_C18$ VDDA_A18$
VDDD1 VDDD3 VDDD5 VDDD6 VDDD9 VDDD11 VDDD13
VDDD2 VDDD4 VDDD7 VDDD8 VDDD10 VDDD12
1
*Short these ground planes on PCB
RP 33X4 YOUTS0 YOUTS1 YOUTS2 YOUTS3 RP 33X4 YOUTS4 YOUTS5 YOUTS6 YOUTS7 8 6 4 2 8 6 4 2 7 5 3 1 7 5 3 1
+1-8V L118 R201/0805 AV_5V I107 AP117-1.8V/SOT223 3 VI VO 2 + C199 10U/50V C200 0.1U GND C202 C204 + 47U/16V 0.1U 47U/16V L119
+1-8V_VA A11 A12 A13 A14 C198 A21 A22 A23 A24 C201 A31 A32 A33 C650 C212 A41 A42 A43 A44 C213 27 29 31 34 30 19 21 23 26 22 11 13 15 18 14 2 5 7 10 6 152 148 149 143 144 141 140 146 126 FOR SAA7117 52 43 AI11 AI12 AI13 AI14 AI1D AI21 AI22 AI23 AI24 AI2D AI31 AI32 AI33 AI34 AI3D AI41 AI42 AI43 AI44 AI4D TDI TCK TMS XCLK XDQ XRH XRV XRDY XTRI TESTCLK$ GPIN$ 154 VXSS AMCLK ASCLK AMXCLK ALRCLK VSSD1 VSSD3 VSSD5 VSSD6 VSSD9 VSSD11 VSSD13 VSSD2 VSSD4 VSSD7 VSSD8 VSSD10 VSSD12 VSSA0 VSSA1 VSSA2 VSSA3 VSSA4 AGND AGNDA FSW TDO XTOUT INT_A
C195 47U/16V
+
C196 0.1U
C197 0.1U R167 47
0.022U
R201/0805
102 RP12 100 99 98 97 RP13 94 93 92 113 112 111 110 109 107 105 103 139 138 135 134 131 130 128 127 62 61 60 58 57 56 55 54 53 46 48 39 71 69 70 49
Power Plane : +1-8V_D , +1-8V_AD, +3-3V_D, +3-3V_AD,+3-3V, +5V Power Line : +1-8V_PLL,+1-8V,+12V Ground Plane : GND , GNDV
+1-8V_VB R169 47 C203 + C205 C206 C207 C208 C209 C210 C211 0.1U 0.1U 0.1U 0.1U 0.1U 0.1U 0.1U R553 47 R171 47
0.022U
1
0.022U 0.022U
I106 SAA7117A
GNDV
GNDV R172 47
0.022U
GNDV
VOUT1 SCART_RED1 SCART_GREEN1 SCART_BLUE1
VOUT1 SCART_RED1 SCART_GREEN1 SCART_BLUE1
R173
0
C214 C215 C216 C217
0.1U 0.1U 0.1U 0.1U
A11 A21 A31 A41
I2c Address Select: R206 on: 42h R207 on: 40h
R174 R180 R181 47 0 0 SAA_OUT THS TVS SAA_OUT THS TVS I2C_SEL R179 R182 +3-3V_VB (NC)0 0
C218 C219 C220 C221 100P 100P 100P 100P
R175 R176 R177 R178 680 (NC)75 (NC)75 (NC)75
47 63 88 96 129 137 153
51 67 104 108 133 145
83 150 158 64
38 28 20 12 4 3 35
72 74 76 75
+3-3V_VB I2C_SEL R183
GNDV
GNDV GNDV
0
+3-3V_VB R557 (NC)10K
C222 SCART_RED2 SCART_GREEN2 SCART_BLUE2 SCART_RED2 SCART_GREEN2 SCART_BLUE2 C223 C224 C225 C227 C228 C229 100P 100P 100P R188 R189 R190 (NC)75 (NC)75 (NC)75
0.1U 0.1U 0.1U 0.1U
A13 SCART_FSW_S A23 A33 A43 L146 C447 0.1U C448 22U/50V R201/0805 AV_5V SCART_FSW2 R186 0 SCART_FSW1 SCART_FSW1 R590 0 3 2 1 IN1 GND IN2 OUT VCC SW 4 5 6 R591 C638 0.1U 0 SELVOUT1 SELVOUT1 SCART_FSW_S SCART_FSW_S R185 0 I139 AV_5V SCART_FSW_S
SCART_FSW2
GNDV TV_C R569 0
GNDV C607 0.1U A12 AGND TV_C 2 C618 100P GNDV R575 (NC)75 1 R399 AGND 20K Q104 MMBT3904 R585 1K 3
NC7SBU3157
B C SOT 23 E
TV_C
R396 10K C453 100U/16V TV_CVBS
+
TV_CVBS
FSW_T TR TG TB TR TG TB R193 R195 R197 0 0 0 R200 R201 R202 C234 100P C235 100P C236 100P 150 150 150 A22 A32 A42
FSW_T
R191
680 R192 510
A44
YOUT1 COUT1
YOUT1 COUT1
R194 R196
0 0
C230 C231
0.1U 0.1U
A14 A24
GNDV
C232 100P
C233 100P
R198 1K
R199 1.5K
GNDV
GNDV GNDV GNDV
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EL4212B Service Manual
6.5. SAA7117B
+3-3V_BS VVCLK2 VDXB[0..7] VVCLK2 VDXB0 VDXB1 VDXB2 VDXB3 VDXB4 VDXB5 VDXB6 VDXB7 AV_5V I108 LD1117-3.3V +3-3V_BS L121 + R201/0805 C244 47U/16V YOUT8 YOUT9 YOUT10 YOUT11 YOUT12 YOUT13 YOUT14 YOUT15 VDXB0 VDXB1 VDXB2 VDXB3 VDXB4 VDXB5 VDXB6 VDXB7 + C247 C248 C249 C250 C251 C619 0.1U 0.1U 0.1U 0.1U 0.1U 0.1U C237 10U/50V C245 0.1U 1 +3-3V_BVB 3 GND VI VO 2 + C252 0.1U L120 R201/0805 C239 C240 C241 C242 C243 C238 C246 47U/16V 100U/50V 0.1U 0.1U 0.1U 0.1U 0.1U AV_5V +3-3V_BVA
06 SAA7117B
Video Decoder SAA7117
AV_5V
I2C_SCL I2C_SDA GNDV
I2C_SCL I2C_SDA
4
3
2
1
4
3
2
1
+3-3V_BVA CP4 CP 22PX4 +3-3V_BVB C253 27P R205 10K C254 27P X102 24.576MHZ
+3-3V_BVB
+1-8V_BVB L122
+1-8V_BVA (NC)R201/0805
CP3 CP 22PX4 5 6 7 8 5 6 7 8
* C24,C25 = 10 ~ 27P by X1 Cut-off the power plane of Crystal Parts Area
37 32 33 24 25 16 17 8 9 VDDA0 VDDA1 VDDA1A VDDA2 VDDA2A VDDA3 VDDA3A VDDA4 VDDA4A
45 59 73 95 114 136 151
50 65 101 106 132 142
157
40 41
Video Decoder
ICLK IDQ IGPH IGPV IGP0 IGP1 ITRDY ITRI IPD0 IPD1 IPD2 IPD3 IPD4 IPD5 IPD6 IPD7 HPD0 HPD1 HPD2 HPD3 HPD4 HPD5 HPD6 HPD7 XPD0 XPD1 XPD2 XPD3 XPD4 XPD5 XPD6 XPD7 ADTEST1$ ADTEST2$ ADTEST3$ ADTEST4$ ADTEST5$ ADTEST6$ ADTEST7$ ADTEST8$ ADTEST9$ LLC LLC2_54$ AOUT RTCO RTS0 RTS1 RESON 84 85 91 90 87 89 77 86 R206 0 VVCLK2 C255 33P VVCLK2
VXDD
156 155 44 66 68 147
XTAL XTALI CE SCL SDA TRSTN
GNDV I2C_SCL R207 I2C_SDA R208 +1-8BV L123 R201/0805 AV_5V I110 AP117-1.8V/SOT223 3 VI VO 2 GND + L124 R201/0805 R554 +1-8V_BVB C264 0.1U C263 + C265 47U/16V 47U/16V 0.1U 0.1U 0.1U 0.1U 0.1U 0.1U 0.1U R213 47 + C266 C267 C268 C269 C270 C271 C272 R211 47 B21 C651 0.022U B23 B24 47 C261 0.022U B31 B32 B33 B34 C273 0.022U B41 B42 B43 B44 C274 0.022U C256 47U/16V C257 C258 0.1U 0.1U R209 47 B11 B12 B13 B14 C259 0.022U 27 29 31 34 30 19 21 23 26 22 11 13 15 18 14 2 5 7 10 6 152 148 149 143 144 141 140 146 126 FOR SAA7117 52 43 AI11 AI12 AI13 AI14 AI1D AI21 AI22 AI23 AI24 AI2D AI31 AI32 AI33 AI34 AI3D AI41 AI42 AI43 AI44 AI4D TDI TCK TMS XCLK XDQ XRH XRV XRDY XTRI TESTCLK$ GPIN$ 154 VXSS +1-8V_BVA 0 0
VDDA_C18$ VDDA_A18$
VDDD1 VDDD3 VDDD5 VDDD6 VDDD9 VDDD11 VDDD13
VDDD2 VDDD4 VDDD7 VDDD8 VDDD10 VDDD12
*Short these ground planes on PCB
RP 33X4 YOUT8 YOUT9 YOUT10 YOUT11 RP 33X4 YOUT12 YOUT13 YOUT14 YOUT15 8 6 4 2 8 6 4 2 7 5 3 1 7 5 3 1
102 RP14 100 99 98 97 RP15 94 93 92 113 112 111 110 109 107 105 103 139 138 135 134 131 130 128 127 62 61 60 58 57 56 55 54 53 46 48 39 71 69 70 49
Power Plane : +1-8V_D , +1-8V_AD, +3-3V_D, +3-3V_AD,+3-3V, +5V Power Line : +1-8V_PLL,+1-8V,+12V Ground Plane : GND , GNDV
C260 10U/50V
+
C262 0.1U 1
I109 SAA7117B
GNDV
GNDV R214 47
GNDV
I2c Address Select: R206 on: 42h R207 on: 40h
+3-3V_BVB I2CB_SEL R215 R216 0 (NC)0
47 63 88 96 129 137 153
51 67 104 108 133 145
83 150 158 64
38 28 20 12 4 3 35
72 74 76 75
AMCLK ASCLK AMXCLK ALRCLK
VSSD1 VSSD3 VSSD5 VSSD6 VSSD9 VSSD11 VSSD13
VSSD2 VSSD4 VSSD7 VSSD8 VSSD10 VSSD12
VSSA0 VSSA1 VSSA2 VSSA3 VSSA4 AGND AGNDA
FSW TDO XTOUT INT_A
+3-3V_BVB I2CB_SEL R217
GNDV
0 NC
VOUT2 SCART_RED2 SCART_GREEN2 SCART_BLUE2
VOUT2 SCART_RED2 SCART_GREEN2 SCART_BLUE2
R218
0
C275 C276 C277 C278 R221 R222 R223 R224 680 (NC)75 (NC)75 (NC)75
0.1U 0.1U 0.1U 0.1U
B11 B21 B31 B41 SCART_FSW2 SCART_FSW2 R220 0 B34
C279 C280 C281 C282 100P 100P100P 100P
SCART_FSW1 GNDV GNDV
SCART_FSW1
R227
0
B44 YOUT2 COUT2 B32 B42
YOUT2 COUT2 SCART_Y SCART_C SCART_Y SCART_C C444 C445 (NC)1UB14 (NC)1UB24
R236 R237
0 0
C290 C292
0.1U 0.1U
C297 100P
C298 100P
R242 1K
R243 1.5K
R592 R593 (NC)75 (NC)75 C287 SCART_RED1 SCART_GREEN1 SCART_BLUE1 SCART_RED1 SCART_GREEN1 SCART_BLUE1 C288 C289 C291 R239 R240 R241 (NC)75 (NC)75 (NC)75 100P R231 (NC)75 GNDV GNDV GNDV 0.1U 0.1U 0.1U 0.1U B13 B23 GNDV B33 B43 TV_CVBS2 C294 C295 C296 100P 100P TV_CVBS2 R226 0 C283 0.022U B12 GNDV
GNDV
GNDV
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EL4212B Service Manual
6.6. ADC
VDD_ADC
PVDD
AVDD
07 ADC/YPbPr2
11 22 23 69 78 79 26 27 34 35 I111 39 42 45 46 51 52 59 62
UV Port
VDXB[0..7]
Video Interface
R[0] R[1] R[2] R[3] R[4] R[5] R[6] R[7] G[0] G[1] G[2] G[3] G[4] G[5] G[6] G[7] B[0] B[1] B[2] B[3] B[4] B[5] B[6] B[7] 77 76 75 74 73 72 71 70 9 8 7 6 5 4 3 2 19 18 17 16 15 14 13 12 R0 R1 R2 R3 R4 R5 R6 R7 G0 G1 G2 G3 G4 G5 G6 G7 RP20 RP 33X4 VDXB0 VDXB1 VDXB2 VDXB3 VDXB4 VDXB5 VDXB6 VDXB7 VDXA0 VDXA1 VDXA2 VDXA3 VDXA4 VDXA5 VDXA6 VDXA7 VDXA[0..7]
PVDD PVDD PVDD PVDD
AVDD AVDD AVDD AVDD AVDD AVDD AVDD AVDD
VDD VDD VDD VDD VDD VDD
APR+ APRASOY AY+ AYAPB+ APBTP114 TP115 R248 R249 0 PVDD (NC)0
54 53 49 48 47 43 44 30 31 29
Y Port
REDIN REDINM SOGIN GRNIN GRNINM BLUIN BLUINM HSYNC VSYNC COAST
RP21
RP 33X4
RP22
RP 33X4
RP23
RP 33X4
Red with Blue output port could be swap.
R250 0 R251 R610 R611 (NC)0 22 22 55 56 57 A0 SCL SDA
MST9883C
I2C_SCL I2C_SDA
I2C_SCL I2C_SDA
DCK HSOUT VSOUT SOGOUT
67 66 64 65
R252 R253 R254 R255
33 33 33 10K
ADVCLK1 ADVHS ADVVS
ADVCLK1 ADVHS ADVVS
PVDD
C299 C300 C301 10P 10P 100P V33 L125 AVDD R201/0805 C305 C306 C307 C308 C309 C310 C311 C312
38
CLAMP MIDSCV 37 C302 0.1U
R256 10K C303 0.1U
58
VREF
FILT
33
C304 10U/50V
0.1U
0.1U
0.1U
0.1U
0.1U
0.1U
0.1U
0.1U
GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND
1 10 20 21 24 25 28 32 36 40 41 50 60 61 63 68 80
V33 L126 R201/0805
PVDD
C314 C315 C316 V33 L127 V33 R201/0805 C319 C318 10U/50V 0.1U C320 C321 C322 C323 C324 0.1U 0.1U 0.1U 0.1U 0.1U VDD_ADC C313 10U/50V 0.1U 0.1U 0.1U
C317 0.1U
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EL4212B Service Manual
6.7. MCU
STB_5V STB_5V
08 MCU
STB_5V R257 STB_5V 4.7K RP16 RP 4.7KX4 C325 0.1U
8 7 6 5
8 7 6 5
RP17 RP 4.7KX4
STB_5V
8 7 6 5
1 2 3 4
44
STB_5V
C326 20P 35 EA/VP X1 X2 RESET INT0/P3.2 INT1/P3.3 T0/P3.4 T1/P3.5 P1.0 P1.1 P1.2 P1.3 P1.4 P1.5 P1.6 P1.7
I112 P0.0 P0.1 P0.2 P0.3 P0.4 P0.5 P0.6 P0.7 P2.0 P2.1 P2.2 P2.3 P2.4 P2.5 P2.6 P2.7 RD/P3.7 WR/P3.6 PSEN ALE/P TXD/P3.1 RXD/P3.0 43 42 41 40 39 38 37 36 24 25 26 27 28 29 30 31 19 18 32 33 13 11 23 34 G_LED Y_LED SELTV SELCLK SELVOUT1 R869 KEY_LEFT KEY_RIGHT RD WR MTXD MRXD R584 PDP_EN PDP_EN 0 RD WR AD0 AD1 AD2 AD3 ENTER MENU KEY_DOWN KEY_UP AD[0..3] RP18 RP 4.7KX4 RP19 RP 4.7KX4
+ C327 10U/50V
R258 1M C328 20P
X103 24MHz
UCLK
21 20 10
VCC
1 2 3 4
1 2 3 4
VS_ON
D121 LL4148 1
R259 10K
INT
INT IRRCVR1 I2C_SCL I2C_SDA R260 R261 SLE ALL_RST MUTE HWRESET ALE SPK_SEL VGA_CAB PWRON PWR_SW
0
14 15 16 17
TVINOUT_SW SELTV SELCLK SELVOUT1 STB_5V STB_5V
VS_ON KEY_LEFT KEY_RIGHT MENU KEY_DOWN KEY_UP ENTER PWR_SW
1 2 3 4
8 7 6 5
P104 8 7 6 5 4 Vol-/Left Vol+/Right Menu CH-/Down CH+/Up Enter Power GND
2
0
SLE ALL_RST MUTE HWRESET ALE SPK_SEL VGA_CAB PWRON PWR_SW
(NC)0 2 3 4 5 6 7 8 9 1 12
R263 4.7K
R262 4.7K R264 R265 VS_ON 0 0 VS_ON TXD RXD
3 2 1 TXD RXD
CON_8_2.0mm
P4.2 P4.3/ISP
GND
P4.0 P4.1 80C51_PLCC MPU
*MCU ROM size at 128K byte
STB_5V STB_5V C330 0.1U I113 1 2 3 4 A0 A1 A2 GND VCC WP SCL SDA 8 7 6 5 I2C_SCL I2C_SDA I2C_SCL I2C_SDA STB_5V STB_5V STB_5V R267 4.7K R268 4.7K STB_5V
AT24C32A/DIP/SMD
22
I2C address at A0.
R266 1K 5 IRRCVR1 I2C_SCL I2C_SDA 4 3 I2C_SCL I2C_SDA STB_5V STB_5V STB_5V I2C address at A4, for HDMI encode key storagy. STB_5V Q101 PNP_3906 3 2 R269 2.2K LED_GR LED_AM 2 1
P102 VCC IR GND LED_G LED_R
C329 0.1U
CON_5_2.5mm
Debug port
STB_5V P103 MRXD MTXD 1 2 3 4 CON_4_2.5mm I140 1 2 3 4 A0 A1 A2 GND VCC WP SCL SDA 8 7 6 5 R597 R598 0 0 R594 4.7K C639 0.1U R595 (NC)4.7K R596 (NC)4.7K
R270
100
G_LED R271 I2C_SCL I2C_SDA I2C_SCL I2C_SDA R272
100
100
Q102 PNP_3906 3 2
24LC04BT/SN Y_LED R273 100 1
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03/13/2006
EL4212B Service Manual
6.8. Video JACK
09 VIDEO JACK
P105 9 6 5
AV_5V I114 L176 2.2UH/0603 RCA_AV2 AV2L AV2R RCA_AV2 AV2L AV2R Y1 PB1 PR1 Y2 PB2 PR2 2 5 11 14 3 6 10 13 8 S1A S1B S1C S1D S2A S2B S2C S2D GND FSAV330 R603 L177 2.2UH/0603 AV1L AV1R RCA_AV1 RCA_AV1 AV1L AV1R PR_OUT1 R421 R422 75 75 C335 1000P C336 1000P C640 C641 C642 1U/0805 0.1U 0.1U 1U/0805 0.1U 0.1U Y1_1 PB1_1 R281 PR1_1 (NC)75 (NC)75 (NC)75 Y1 PB1 R285 L129 2 2 2 D128 D129 D130 L130 5.6V 1 5.6V 1 5.6V AV_5V I115 L131 R100/0603 Y_IN-2 Pb_IN-2 L132 R100/0603 Pr_IN-2 C346 C348 C349 1U/0805 0.1U 0.1U Y2 PB2 PR2 Y2_2 PB2_2 PR2_2 Y1_1 PB1_1 PR1_1 2 5 11 14 3 6 10 13 8 R604 0 1 1 C690 (NC)0.1U S1A S1B S1C S1D S2A S2B S2C S2D GND FSAV330 C645 5.6V 5.6V 5.6V 1 0.1U PR2_2 VCC DA DB DC DD IN /EN 16 4 7 9 12 1 15 Y_OUT2 PB_OUT2 PR_OUT2 L188 C347 0.1U R221/0603 1 R100/0603 R287 75 R288 75 R289 75 R100/0603 Pr_IN-1 C343 PR1 47 47 47 C342 0.047U C344 0.047U C345 0.047U PRYPBPRYPBR282 R283 R284 100 C339 0.01U SOY SOY Y_OUT1 PB_OUT1 R275 75 R277 75 R279 75 R276 R278 R280 47 47 47 C334 0.047U C337 0.047U C338 0.047U PR+ Y+ PB+ PR+ Y+ PB+ 0 C689 (NC)0.1U VCC DA DB DC DD IN /EN 16 4 7 9 12 1 15 Y_OUT1 PB_OUT1 PR_OUT1 L187 C331 0.1U R221/0603
RED(AV2) RED(AV1)
C332 1000P
8
4 3
WHITE(AV2) WHITE(AV1)
C333 1000P
R274 0
SELYPbPr1
7
2 1
YELLOW(AV2) YELLOW(AV1)
2 2 2 2 2 D122 5.6V 1 D123 5.6V 1 D124 D125 D126 2 1 D127
AV_CON(2ROW) (NC)5.6V (NC)5.6V (NC)5.6V (NC)5.6V 1 1 1
P106 9 6 5 L128 R100/0603 Y_IN-1 Pb_IN-1 C340 C341
8
4 3
YPbPr1 to Scaler
R286 R290
7
2 1
AV_CON(2ROW) L133 2 2 2 D131 D132 D133 R100/0603 R291 R292 R293 75 75 75 C643 C644 1U/0805 0.1U Y2_2 PB2_2
R294 0
SELYPbPr2
P107 6 4 3
HD_R1 2 HD_L1 D134 (NC)5.6V 1 C352 1000P C353 1000P
HD_R1 HD_L1
PR_OUT2 Y_OUT2 PB_OUT2
R295 75 R297 75 R299 75 R301 R302 (NC)75
R296 R298 R300 R303 R304 (NC)75 R305 R306 R307
47 47 47 100
C350 0.047U C351 0.047U C354 0.047U C355 0.01U
APR+ AY+ APB+ ASOY
APR+ AY+ APB+ ASOY
2
5
2 1 1 D135 D136 (NC)5.6V (NC)5.6V 1
2
HD_R2 HD_L2
HD_R2 HD_L2
AUDIO RL
2
(NC)75
D137 (NC)5.6V 1 C357 1000P L178 P108 2 2 5 6 1 2 R420 75 D139 5.6V 1 R419 75 L179 2.2UH/0603 C358 1000P
YPbPr2 to MST9883
CHR2_IN LUM2_IN
47 47 47
C356 0.047U C359 0.047U C360 0.047U
APRAYAPB-
APRAYAPB-
2.2UH/0603
CHR2_IN LUM2_IN
D138 5.6V 1
2
7 8
3 4 9 S-JACK
L180 D140 5.6V R418 75
2.2UH/0603
LUM1_IN
LUM1_IN
1
2
L181 D141 5.6V R417 75
2.2UH/0603
CHR1_IN
CHR1_IN
1
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EL4212B Service Manual
6.9. SCART INPUT
AV_5V 2 2 2 2
10 SCART_IN
21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 P109 CVBS INPUT CVBS OUT
D142 LL4148 1
D143 LL4148 1
D144 LL4148 1
D145 LL4148 1
2 D146 LL4148 L190 2.2UH/0603 SCART_AV1 SCART_AV1 SCART_RED1 SCART_GREEN1 SCART_RED1 SCART_GREEN1 SCART_BLUE1 SCART_BLUE1 1
L134 C361 (NC)0.1U C362 (NC)22U/50V I118 3 VCC OUT SW IN2 GND IN1 4 5 6
(NC)R201/0805
AV_5V
2
2
2
Blanking I/O Red I/O
47P
47P
47P
R309 75
D147 LL4148 1
D148 LL4148 1
D149 LL4148 1
D150 LL4148 1 C366 10P
2 D151 LL4148
C363 C364 C365
2
R599 R600 R601 75 75 75 AGND AGND AGND SCART_FSW1 SCART_FSW1 SCART_ALin1 R311 (NC)4.7K AGND AV_5V C373 AGND 0.1U AGND AUDIO_OUT_L AUDIO_OUT_R AUDIO_OUT_L AUDIO_OUT_R 22U/50V C374
ADD
C368 100U/50VTV_CVBS + TV_CVBS
Green I/O
1
2 1
Switch Blue I/O Audio L-Input C369 100P Audio L-Out Audio R-Input Audio R-Out AGND
L135 R313 R80/0805 R314 (NC)10K C370 100P L136 R315 0 R80/0805 C371 R316 100P (NC)10K AGND SCART_ARin1 C372 100P 0 SCART_ALin1
(NC)MM1501 R870 0 AV_5V
AGND TVINOUT_SW L137 R201/0805 AV_5V
SCART_ARin1
AGND AGND C375 47P C376 47P C377 47P R317 4.7K C378 1000P AGND R321 75/1% R318 1K
SCART-1
AGND
C379 1000P R320 1.3K AGND AGND
R319 1K AGND FS_SC1 FS_SC1 Q100 MMBT3904
3
2
AGND AGND AV_5V 2 2 2 2 D152 AGND GND LL4148 1 LL4148 1 LL4148 1 LL4148 1 LL4148 L191 2.2UH/0603 1 SCART_Y SCART_C SCART_AV2 SCART_RED2 SCART_GREEN2 SCART_BLUE2 SCART_Y SCART_C SCART_AV2 SCART_RED2 SCART_GREEN2 SCART_BLUE2 D153 D154 D155 2 D156 R323 10K
1
+
B C SOT 23 E
R322 10K C380 100U/16V SAA_OUT R540 220
21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 P110
AGND
CVBS INPUT CVBS OUT 2 2 2 2 C382 C383 C384 Blanking I/O Red I/O 47P 47P 47P 2 D160 LL4148 1
R326 D157 75 LL4148 1
D158 LL4148 1
D159 LL4148 1
C386
R327 0 R328 1K AGND
47P D161 LL4148 1
R541 R542 R543 75 75 75 AGND AGND AGND SCART_FSW2 SCART_FSW2 SCART_ALin2
Green I/O
Switch Blue I/O Audio L-Input C392 100P Audio L-Out Audio R-Input Audio R-Out AGND
L139 R333 R80/0805 0 R334 (NC)10K AGND AGND C396 47P C397 47P C398 47P R337 4.7K C399 1000P R340 1.3K AGND R341 75/1% R338 1K C400 1000P AGND AGND AGND FS_SC2 R339 1K C393 100P C394 100P AGND L140 R335 R80/0805 0 R336 (NC)10K AGND AGND SCART_ARin2 C395 100P AUDIO_OUT_L2 AUDIO_OUT_R2 SCART_ALin2
SCART_ARin2
SCART-2
AUDIO_OUT_L2 AUDIO_OUT_R2
AGND
FS_SC2
AGND AGND
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EL4212B Service Manual
6.10. SCART 3
11 SCART 3
AV_5V
AV_5V AV_5V 2 D167 (NC)LL4148
B21 B20 B19 B18 B17 B16 B15 B14 B13 B12 B11 B10 B9 B8 B7 B6 B5 B4 B3 B2 B1 P119
CVBS3
INPUT
SCART_AV3
1
SCART_AV3
C613 (NC)47P R570 (NC)75
L170 Audio L-Input C614 (NC)100P Audio R-Input AGND AGND AGND R571 (NC)R60/0805 (NC)2.2K R572 (NC)10K C615 (NC)100P L171 SCART_ARin3 SCART_ALin3 SCART_ALin3
1
2 D168 (NC)LL4148
R573 (NC)2.2K SCART_ARin3 (NC)R60/0805 C617 (NC)100P C616 (NC)100P R574 (NC)10K AGND AGND AGND
(NC)SCART-3
AGND R544 (NC)4.7K FS_SC3 FS_SC3
R545 (NC)1.3K
AGND
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EL4212B Service Manual
6.11. TUNER
12 TUNER
L141 I117 NC/AGC NC/Monitor VCC SCL SDA AS NC NC SIF CVBS VCC-IF AF O/P 1 2 3 4 5 6 9 10 11 12 13 14 C401 0.1U C402 47U/16V +5VTuner R201/0805 L142 +5VTuner R201/0805 5V_TV 5V_TV +5VTuner +5VTuner
R342 R343 R344
0 0 0 C403 C404 (NC) (NC) L182 C405 0.01U
I2C_SCL I2C_SDA TUN_SIF
I2C_SCL I2C_SDA TUN_SIF
R345 (NC)2.2K R121/0603 TV_CVBS TUN_MONO C406 C407 47U/16V 1000P R347 3K TV_CVBS TUN_MONO
15 16 17 18
CHASSIS CHASSIS CHASSIS CHASSIS
Tuner FQ1216_MK3
TUNER
C408 0.1U
C409 47U/16V
R346 75 5V_TV L185 110uH C411 0.1U GNDT GNDT I2C_SCL I2C_SDA +5VTuner
+5VTuner L144 I119 NC/AGC NC/Monitor VCC SCL SDA AS NC NC SIF CVBS VCC-IF AF O/P 1 2 3 4 5 6 9 10 11 12 13 14 C412 C413 (NC)0.1U (NC)47U/16V R348 R349 R350 (NC)0 (NC)0 (NC) C414 C415 C416 (NC) (NC) L183 (NC)0.01U L145 (NC)R201/0805 +5VTuner (NC)R201/0805
R562 0
C410 220U/16V
I2C_SCL I2C_SDA TUN_SIF2
TUN_SIF2
15 16 17 18
CHASSIS CHASSIS CHASSIS CHASSIS
(NC)R100/0603 TV_CVBS2 TUN_MONO2
TV_CVBS2 TUN_MONO2
(NC)Tuner FQ1216_MK3
TUNER
C419 (NC)0.1U
C417 C418 (NC)47U/16V (NC)1000P C420 R351 (NC)47U/16V (NC)75 R352 (NC)3K
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EL4212B Service Manual
6.12. Teletext SAA5361
AV_5V
13 TELETEXT SAA5361
VCCVT AV_5V VCCVT C610 0.1U I124 1 2 3 4 A0 A1 A2 GND 24LC16 FS_SC1 FS_SC2 FS_SC3 R402 R403 R546 100 100 (NC)100 VCC WP SCL SDA 8 7 6 5 C454 0.1U R400 4.7K R401 4.7K T_SCL T_SDA 100 93 94 95 96 97 98 1 2 4 5 6 16 17 18 22 24 13 28 29 31 32 49 40 39 38 27 26 23 15 67 66 65 64 37 36 8 33 9 10 34 35 50 51 P2_0/TPWM P2_1/PWM0 P2_2/PWM1 P2_3/PWM2 P2_4/PWM3 P2_5/PWM4 P2_6/PWM5 P2_7/PWM6 P3_0/ADC0 P3_0/ADC1 P3_0/ADC2 P3_0/ADC3 SCL_NVRAM SDA_NVRAM P0_2 P0_3 P0_4 P0_5 P0_6 P0_7 CVBS0 CVBS1 A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 A15_BK RD WR SYNC_FILTER IREF RAMBK1 RAMBK0 45 75 63 C611 0.1U
I127 LD1117-3.3V 3 GND VI VO 2 C480 0.1U 1
L147 R201/0805 C478 100U/16V C481 0.1U
VCCVT
C479 0.1U
+
C482 0.1U
C483 0.1U
C612 0.1U
Vcca Vddp Vddc
P1_0 P1_1 P1_2 P1_3 P1_4 P1_5 VDS HSYNC VSYNC R G B RESET RESET
76 78 79 80 83 84 52 53 55 48 47 46 73 72 71 70 69 81 82 43 41 85 86 87 88 89 90 91 92 14 61 68 59 58 R411 R412 0 0 X104 12MHz R405 C456 56P R407 1M C458 56P R408 R409 0 0 I2C_SCL I2C_SDA VCCVT 0 R404 THS TVS TR TG TB THS TVS TR TG TB 0 FSW_T
FS_SC1 FS_SC2 FS_SC3
FSW_T
C455 100P ALL_RST
ALL_RST
C457 SAA_OUT_T SAA_OUT_T R406 0 0.1U TA0 TA1 TA2 TA3 TA4 TA5 TA6 TA7 TA8 TA9 TA10 TA11 TA12 TA13 TA14 TA15 TRD TWR
I123
SAA5361HL
XTALOUT XTALIN OSCGND SCL SDA COR FRAME AD0 AD1 AD2 AD3 AD4 AD5 AD6 AD7 EA INTD NC NC NC
I2C_SCL I2C_SDA
TD0 TD1 TD2 TD3 TD4 TD5 TD6 TD7
VCCVT
TA17 TA16
L184 C646 C647 0.1U 22U/50V 3
R201/0805
AV_5V
C460 0.1U
R413 24K
11 12 21 30 42 60 62 99 7 74 19 20 25 44 54 56 57 77 3
TA0 TA1 TA2 TA3 TA4 TA5 TA6 TA7 TA8 TA9 TA10 TA11 TA12 TA13 TA14 TA15 TA16 TA17
I125 20 19 18 17 16 15 14 13 3 2 31 1 12 4 11 7 10 9 A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 A15 A16 A17 VCC WE OE CS1 CS2 DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 VSS 8 5 32 30 6 21 22 23 25 26 27 28 29 24 TD0 TD1 TD2 TD3 TD4 TD5 TD6 TD7 TWR TRD C459 0.1U
R410
0
PW_DOWN
Vssc Vssp VPE Vssa VPE Vssp Vssc Vssc NC NC NC NC NC NC NC NC NC NC NC
HY62U8200B
SRAM (TSOPI-32)
R547 10K C648 100U/16V SAA_OUT R550 220 + SAA_OUT
C SOT 23 E B
Q123 MMBT3904 SAA_OUT_T
2 R548 1K
1 R549 10K
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EL4212B Service Manual
6.13. Video Switch Interface
+9V
V12AMP V12AMP C421 100U/16V 1 C422 0.1U
GND
I120 78M09/TO252 VI VO 3
14 VIDEO_SW
+9V V1-V C424 0.1U R355 V1-L V1-Y R359 V1-R 470K 470K 1 2 3 4 V1-C 5 6 V2-V V1-V V1-L V1-Y V1-R V1-C S1 V2-V V2-L V2-Y V2-R V2-C S2 V3-V V3-L V3-R STV-V STV-L STV-R Yin2 ADR Cin2 GND
L189
R221/0603 C425 1000P R354 470K MTV-L MTV-V R358 470K MTV-R R360 100 COUT1 COUT1
C423 100U/16V
MTV-L MTV-V
44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 R391 R388 R385 R380 R382 R378 22 22 (NC)0 SWITCH_L SWITCH_R SWITCH_L SWITCH_R BIAS C432 22U/50V R365 + R362
2
I121 MM1492
MTV-R Cout1 Vcc Yout1 BIAS Vout1 Lout1 Rout1 Yin1 GND Cin1 Mute SCL SDA GND Yout2 Lout2 Cout2 Rout2 Vout2
SCART_AV1 SCART_AV2
SCART_AV1 SCART_AV2
C426 C427
1U 1U
MTV-V STV-V
360
YOUT1
YOUT1
LUM1_IN CHR1_IN
LUM1_IN CHR1_IN
C428 C429
1U 1U
V1-Y V2-L V1-C V2-Y
R364
470K
7 8
270
VOUT1
VOUT1
R367 V2-R LUM2_IN CHR2_IN LUM2_IN CHR2_IN C430 C431 1U 1U V2-Y V2-C V2-C V3-V RCA_AV1 RCA_AV2 RCA_AV1 RCA_AV2 C433 C434 1U 1U V1-V V3-L V2-V V3-R STV-V R383 STV-L R384 STV-R AV1L AV1R AV2L AV2R SCART_ALin1 SCART_ARin1 SCART_ALin2 SCART_ARin2 AV1L AV1R C435 C436 C437 C438 C439 C440 C441 C442 1U 1U 1U 1U 1U 1U 1U 1U V1-L V1-R V2-L V2-R MTV-L MTV-R STV-L STV-R R379 R377
470K
9 10 11 12
R368 680
R369 1K
R370 1.5K
(NC)470K (NC)470K
13 14 15
I2C_SCL I2C_SDA
I2C_SCL I2C_SDA
470K 470K
16 17 18 19 20 21 22
360
YOUT2
YOUT2
100
COUT2
COUT2
AV2L AV2R
270
VOUT2
VOUT2
SCART_ALin1 SCART_ARin1
R392 680
R393 1.5K
R394 1K
SCART_ALin2 SCART_ARin2
SCART_AV3
SCART_AV3
C443
(NC)1UV3-V AV_5V I122
TUN_MONO TUN_SIF TUN_MONO2 TUN_SIF2 SCART_ALin3 SCART_ARin3
TUN_MONO TUN_SIF
C451 R397 C452 R398 C608 C609
1U MONO1 100 1U 100 SIF1 MONO2 0 SIF2 SIF2 0 MONO2 SIF1 R558 MONO1 R559
2 5 11 14 3 6 10 13 8
S1A S1B S1C S1D S2A S2B S2C S2D GND (NC)FSAV330
VCC DA DB DC DD IN /EN
16 4 7 9 12 1 15 C446 (NC)0.1U SIF MONO SIF MONO (NC)0 SELTV
TUN_MONO2 TUN_SIF2
R395
SCART_ALin3 SCART_ARin3
(NC)1UV3-L (NC)1UV3-R
R560 R561
0 0
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EL4212B Service Manual
6.14. AudioPreamp_Earphone
15 AUDIO_AMP EAR_PHONE
HD_L1 HD_R1 HD_L1 C484 0.33U VCC C485 + 47U/16V HD_R1 C487 0.33U
I128 VCC L148 R201/0805 AVSUP V12AMP V12AMP 1 VI 78M08/TO252 VO 3 GND
AHVSUP
C488 0.1U
+ C486 47U/16V
+ C489 0.1U C490 470P C491 220P C492 100U/16V C493 0.01U C494 0.1U + C495 100U/16V 2
HD_L2 HD_R2
HD_L2
C496 0.33U VCCSW DVSUP L149 R201/0805 P111 C500 + 47U/16V C653 0.1U + C652 47U/16V C654 0.1U C655 470P C656 220P SPK_SEL VCC C659 0.1U C660 1000P C662 1000P + SRS_Rout 1 2 SRS_Lout 3 4 5 INT_EXT 6 7 AGND 1 2 3 4 5 6 7 C497 0.33U PC_L PC_R C498 0.33U C499 0.33U C657 0.33U C658 0.33U VCCSW
HD_R2
I2C_SCL I2C_SDA STB_5V
I2C_SCL I2C_SDA STB_5V
SWITCH_L SWITCH_R
SWITCH_L C663 SWITCH_R 10U/50V +
C661 3.3U/50V C665 0.1U MONO MONO R447 0 C666 0.33U R444 1K 8 C664 1U I129A CM8608 1 PGND C667 220U/16V + R445 100K
CON7/ P=2.0mm
R446 100K HP2 1 ROUT 2 INT_EXT 3 LOUT 4 5
P112 1 2 3 4 5 CON5 /P=2.5mm
(8V)
AHVSUP C669 R448 22K AGND C671 10U/50V 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 + C672 10U/50V R452 R454 R455 R457 100 C675 22U/50V AUDIO_OUT_L AUDIO_OUT_R AUDIO_OUT_L2 AUDIO_OUT_R2 R459 R460 R461 R463 C681 1000P C682 1000P C534 C535 AGND 1000P 1000P 0 0 (NC) (NC) SRS_Lout 1U +
CP 3 2 C673 1U R449 1K
+ 4
48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33
C668 56P C670 56P SIF SIF C674 56P 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 AVSUP
SRS_Lout
AVSS MONO_IN VREFTOP SC1_IN_R SC1_IN_L ASG SC2_IN_R SC2_IN_L ASG SC3_IN_R SC3_IN_L ASG SC4_IN_R SC4_IN_L AGNDC AHVSS
R451 + AUDIO_OUT_L AUDIO_OUT_R AUDIO_OUT_L2 AUDIO_OUT_R2 SRS_Lin SRS_Rin SRS_Lin SRS_Rin MUTE VCC STB_5V PGND
22K
R450 1K
R453
0
C676 8.2P X106 C679 8.2P XTAL18.432MHz
VCC R462 6.8K
I2C_CL I2C_DA I2S_CL I2S_WS I2S_DA_OUT I2S_DA_IN1 ADR_DA ADR_WS ADR_CL DVSUP DVSS I2S_DA_IN2 NC NC NC RESETQ
AVSUP ANA_IN1+ ANA_INANA_IN2+ TESTEN XTAL_IN XTAL_OUT TP AUD_CL_OUT NC NC D_CTR_I/OUT1 D_CTR_I/OUT0 ADR_SEL STANDBYQ NC
I130 MSP 3450G 64Pin PLQFP64
CAPL_M AHVSUP CAPL_A SC1_OUT_L SC1_OUT_R VREF1 SC2_OUT_L SC2_OUT_R DACM_S DACM_SUB DACM_C DACM_L DACM_R VREF2 DACA_L DACA_R
To earphone board
100 C677 100 C678 100 C680
22U/50V 22U/50V 22U/50V
+
STB_5V
R456
100 3
+
2 Q108 PNP_3906
+
R458
1K
8
CP SRS_Rout SRS_Rout C533 R464 1U 22K
5 6
R468 22K 4
220U/16V R466 1K
I2C_SCL I2C_SDA
R467 R470
0 0 VCC DVSUP R551 2.2K L152 + C649 10U/50V C540 2200P R201/0603 C541 2200P 6 3 PC Audio-Jack 2 2 Q110 MMBT3904 C538 0.1U P115 3 C539 22U/50V AGND L150 C536 2200P R201/0603 C537 2200P L151 R201/0805 VCC PGND
PC_L PC_R
R586 R587
7.5K 7.5K
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
5 4 3 2 1
P113
+
+
I129B CM8608 7
C683
1
+
2
R588 R589 10K 10K
2
2
2
D162 5.6V
D163 5.6V
L164 R201/0805 VCCSW + C599 100U/16V +5VTuner L165 R201/0805 VCC + C601 100U/16V +5VTuner +5VTuner C602 0.1U C600 0.1U
5
2 4
1
B C SOT 23 E
R576 1K
R472 10K C542 100U/16V SAA_OUT SAA_OUT
R473 D166 5.6V 10K
R552 220
D164 (NC)5.6V AUDIO OUT RL 1
D165 (NC)5.6V 1 1
1 L153 PGND L155 PGND R201/0805 AGND R201/0805 AGND L156 L154
1 R201/0805 R201/0805
AGND
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EL4212B Service Manual
6.15. SRS WOW
16 SRS WOW
C545 C546
+
SRS_Rin SRS_Lin
C543 C544 +
10U/50V 10U/50V R474 R475 22 22 I2C_SCL I2C_SDA
I2C_SCL I2C_SDA
V33_SRS (NC)10U/50V 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 + (NC)10U/50V + + C547 10U/50V SRS_Lout SRS_Rout C548 0.1U 16 C550 10U/50V 15 14 C686 10U/50V 13 C687 10U/50V 12 C557 (NC)0.1U R476 0 11 R477 0 10 C558 (NC)0.1U C559 10U/50V 9 C561 10U/50V 8 C562 (NC)0.1U R478 0 7 R479 (NC) 6 C564 10U/50V 5 C565 10U/50V 4 3 C568 0.1U 2 C566 1 0.1U AGND R484 R485 + + + + + + 10.5K/1% + 10.5K/1% L157 R201/0805 VCC_SRS CH1L CH1R CH3L CH2L CH3R CH3R CH4L CH4R NC1 NC2 NC3 NC4 NC5 NC6 GND SCL C549 VSA1 VDA1 OUTPUTL OUTPUTR LVOLI LMAXO RMAXO RVOLI PUNCHIN BASSOUT MULTIN COMPC COMPC2 CLP CLPB FOUT 10U/50V
I131
AP8210Q PLQFP64
SDA RSTB A0 VCC FSUMI FSUMLRO FMINRLO FMINRLO2 FSPACEI NC7 NC8 NC9 NC10 NC11 NC12 VREFB
33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48
C684 0.1U C685 0.1U C555 0.01U C560 0.47U C563 0.22U R480 R482 R483 28.7K/1% 19.1K/1% 2.2K/1% C567 4700P AGND R481 6.34K/1% C556 0.015U
R487 5.76K/1% 0.1U
64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49
CB1B CB1 CB2B CB2 CB3B CB3 MIXOUT RHPA RHPB RHP LHPA LHPB LHP VDA2 VSA2 VREF
R486 5.76K/1% 0.1U C569 R489 C572 0.1U C571 C575 10U/50V + +
11.5K/1% 4.7U/50V 11.5K/1%
V33SW
V33_SRS
C577 C578 V33SW V33SW C576 0.1U 0.1U 0.1U
C579 C580 C581 C573 C574 0.1U 0.1U 0.1U 0.1U 0.1U R493 R494 R495 15.8K/1% 17.8K/1% 22.6K/1%
C570
R490 31.6K/1%
R491 42.2K/1%
R492 63.4K/1%
R488
V33SW
L158
R201/0805
VCC_SRS
AGND
V33_SRS
R496 2.26K/1%
R497 3.09K/1%
R498 4.87K/1%
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EL4212B Service Manual
6.16. LVDSOUT
17 LVDS OUT
P116 RXE0RXE0- RXE0+ RXE0+ RXE1RXE1- RXE1+ RXE1+ RXE2RXE2+ RXE2RXE2+ 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 R499 R500 R563 (NC)0 (NC)0 0 I2C_SDA I2C_SCL SLE PDP_EN 3_3VA I2C_SDA I2C_SCL SLE PDP_EN
L192 (NC)R201/0805
RXECRXEC- RXEC+ RXEC+ RXE3RXE3- RXE3+ RXE3+
L172 AV_5V (NC)R201/0805 AV_5V
CON_30_2ROW AV_5V AV_5V
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EL4212B Service Manual
6.17. DC_DC
18 DC DC
L166 R201/0805 P117 +12V +12V GND D6V GND D3V3 D3V3 GND GND /PS_ON GND 5VSB VS_ON 1 2 8 3 4 5 6 7 8 9 10 11 12 13 VS_ON VS_ON PS_ON C633 R609 0/0805 L162 STB_5V R201/0805 + C589 100U/16V 220P C637 0.022U STB_5V C634 0.033U C635 1U/0805 C636 R583 9.1K 0.22U 1 1 3 L160 R201/0805 (NC)R201/0805 L161 2 R201/0805 + C586 0.1U C583 100U/16V C587 0.1U + C584 100U/16V V33 C630 2700P V33SW V33SW + C628 470U/16V R580 20K/0805 C629 0.22U/0805 R581 20K 9 + C604 0.1U A12V A12V C603 100U/16V
VCC 2_5VM 3_3VA STB_5V V12AMP AV_5V
VCC 2_5VM 3_3VA STB_5V V12AMP AV_5V
R579
(NC)4.7K
L159 I132 LD1117-3.3V GND VI
1 19 18 11
VCC
VCC
OSC SS V51 COMP INH
Vfb OUT OUT BOOT SYNC
13 2 3 20 2 L175 100UH T-CORE 1 AV_5V R582 0 AV_5V
I138 L4973
GND GND GND GND GND GND GND GND 4 5 6 7 14 15 16 17
VO
12
10
C631 470U/16V D169 SB360
1
2
+
C632 0.22U
CON_13_2.0mm
5V_TV 5V_TV 5V_TV
L193 AV_5V (NC)R201/0805 P118 VAMP VAMP GND GND 1 2 3 4 L167 R201/0805 L168 R201/0805 + C606 0.1U C605 100U/16V PWRON PWRON 1K R565 RDPWON 1 C588 + (NC)22U/50V 2 Q111 1 B V12AMP R564 3.9K PS_ON STB_5V STB_5V 1 STB_5V 3 AV_5V STB_5V I133 LD1117-3.3V GND VI VO 2 + C593 0.1U 3_3VA
C592 100U/16V L169 R201/0805
SOT
2 E 23
C 3
3 + C594 100U/16V
I134 LD1117-2.5V GND VI VO 2 + C596 0.1U 2_5VM
CON_4_2.0mm
MMBT3904
C595 100U/16V
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03/13/2006
2
EL4212B Service Manual
6.18. Earphone Board
Earphone Board
P511 1 2 3 4 5 L533 FB_200R 1 2 L532 3 L531 4 L530 5 ROUT 3 5 4 2 1 P510
FB_200R FB_200R FB_200R LOUT PGND
Phono Jack (Earphone I/P) CON5 /P=2.5mm
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EL4212B Service Manual
6.19. Amplifier
I501 R503 1.21K,1% 1 R502 10K R505 C504 22pF R507 56.2K,1% 49.9K,1% 4 C505 5 100pF 6 7 C509 1uF/50V + 8 9 C511 0.1uF 10 LEAIN VREF CLOCK GND V25 LIN+ LINLAMPOUT RIN+ RINRAMPOUT _SLEEP STATUS RMUTE REAIN REAOUT RFAOUT PVDD PGND LN+ LP+ LPLNRNRPRP+ RN+ PGND CP PVDD NC RISN RFBK+ RFBK39 + 38 37 36 35 34 LN+ LP+ C508 4.7uF/50V LEAOUT CN 40 LMUTE VDD 41 CN VCC24(24V) + CN C506 4.7uF/50V 4 C503 2 100pF 3 RPWM LISN 42 LISN CPWM LFBK+ 43 LFBK+ LFAOUT LFBK44 C502 4700pF FB-
VCC24(24V)
R504 0.033R R506 1.21K,1% LFBK+ C507 3 4700pF 5 6 7 8 2 I502 AP4501M C512 0.47uF/63V R508 1K 4 RL501 6 8 11 13 C515 0.47uF/63V 3 R510 1K L502 15uH 5 + 9 VCC24(24V) 1 16 RELAY DPDT 4 3 2 1 P502 LL+ RR+ 1 L501 15uH C510 1000uF/35V + P503 5 4 3 2 1 LL+ NC RR+
External SPK
CON5 P=2.5mm
To main board P603
P501 1 2 3 4 5 6 7 1 2 3 4 5 6 7 SRS_Lout GND SRS_Rout GND SPK_SEL LX1722_MUTE
R501 0R R509 NC C501 22pF
C513 11 470nF/Y5V50V C514 470nF/Y5V/50V C516 470nF/Y5V/50V R512 NC C518 22pF C519 470nF/Y5V/50V R536 10K _SLEEP Q508 18 R537 NC NC 19 20 C523 21 100pF C524 22pF 22 23 C525 4700pF 24 RFBK+ R516 1.21K,1% FBVCC24(24V) D509 LL4148 27 26 15 16 17 30 29 C520 + 28 + 4.7uF/50V VCC24(24V) C521 4.7uF/50V 8 2 I503 AP4501M 1 RN+ 12 13 14 33 32 31 RP+ 4 6 7
R511 0R
Internal SPK
CON7P=2.0mm
C517 1000uF/35V R513 1.21K,1% RFBK+ C522 4700pF VCC24(24V) D501 LL4148 R518 100K
CON4 P=2.5mm
SPK_SEL VCC24(24V) PWR_CTRL
R539 VCC24(24V) 39k D507 ZENER /5V6 R538 10K R515 56.2K,1% 25 RISN R514 0.033R
Q502 2N2222 R519 33K 1 3 2
3
Q503 BSS138
+ C526 1uF/50V
LX1722CDB R517 10K
SPK_SEL
1 R520 Q501 10K PNP_3906 2
D508 5V6
SPK_SEL: H ... Internal SPK SPK_SEL: L ... External SPK
P504 1 2 1 2 + C527 220uF/50V VCC24(24V) L503 1mH
C528 0.1uF/50V
Switch for Internal(INT) & External (EXT) Speaker.
CON2 P=3.96mm
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EL4212B Service Manual
6.20. De-POP
VCC24(24V)
R524 10K/8P D503 LL4148 3 Q504 BSS138 R525 100K 3 + C530 2.2uF/50V Q505 BSS138 R527 10K,1% + C529 47uF/25V D502 LL4148 R523 10K,1%
FB-
1 R526 10K R528 10K 2
+ C531 2.2uF/50V
1 2
D504 LL4148
MUTE
D505 LL4148
CN R529 0R R530 10K R531 1K
D506 LL4148 3 Q507 BSS138 VCC24(24V) R532 100K 2 R535 6.8K Q506 2N3904
VCC24(24V) R533 1M R534 1M
1 + C532 22uF/50V
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EL4212B Service Manual
6.21. Keypad & IR
P701 VOLVOL+ MENU CH-/Down CH+/Up Enter Power 1 2 3 4 5 6 7 8 GND Vol-/Left Vol+/Right Menu CH-/Down CH+/Up Enter Power GND
Connector,8P,P=2.0mm
P711 LED_R LED_G IR_IN 5VD S707 S706 S705 S704 S703 S702 S701 D701 GND GND 1 2 3 1 2 3 4 5 CON5
VOUT GND VCC
I701 CAM-1538TP5 GND
Keypad Board IR/LED Board
P701 S707 S706 S705 S704 S703 S702 S701
8
1
LED Vol- Vol+ MENU /Left /Right CHCH+ /Down /Up Enter POWER IR
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EL4212B Service Manual
6.22. SMPS
C815 R817 1000pF/1KV 22 1/2W D811 31DF4FC P6KE91A + 470uF/35V R806 56K 1/2W C806 R841 JUMP 2700pF/250V PPN 1 2 L802 JUMPER R816 1 1/4W 3 5 7.8 6 C854 D806 UF4007 I801 TEA1533AP 2 7 8 NC D814 R807 10 1206 Sense 5 R814 R858 33K 1% 1206 R868 NC C808 470 47K/1%/1206 R864 D808 1N4148 R867 221K/ 1% R815 12K 1206 C857 22nF 1206 R859 0.13/3W D820 1H5G 1K2 1/4W R824 4 R851 4.7K 1206 D824 18-2/DIP 4.7K 1206 3 C851 10uF/50V I802 TLP621 I803 TL431D 2 R819 4.7K 1206 1 C836 NC C821 0.01UF/50V D819 1H5G J811 NC C816 NC C823 4700PF Y1 R836 6 NC Q801 AP09N701-A 9 R818 C814 22 1/2W 1000PF/1KV + 11 10 T801 1500UF/35V C819 31DF4FC 12 D810 D809 31DF2FC D821 NC NC R825 L804 + D804 20D8 D803 20D8 R803 560K 1206 C802 3300pF Y1 C804 NC C801 NC D801 20D8 D802 20D8 C805 150UF 400V R830 560K 1206 + C803 3300pF Y1 D805 C824 NC L807 5.2uH C820 R834 NC
C825 103P/50V +
24V
1
P802
2 L808 Jumper x2
GND1
JUMPER
JUMPER
L809
C817 470UF/25V
Gnd
R843 NC T2.5A/250V F801
R840 NC
100uF/25V
C831 NC +
1 3
Vcc Ctrl Dem
Driver
Drain
Hvs
C807 NC 3.3K 1% D823 NC
C850
R802 10 3A
R8662K7 1206
R823
39K 1%
L 4
N 4
JP
C872 0.68uF X2
C859 22nF 0805
4
D817 NC
R857 10K 1% 1206
D818 UF4005 R852
L815 T106
Q802 2SC2120 C871 0.68uF X2 C873 4700pF Y1 L816 T106 C874 4700pF Y1 R865 68K D813 7A3(6.8V)/DIP R850 47K 1206 Q808
R821 4.7K/0805
C858
2SC945
FG
L
N
P801
AC IN 100~240V
(1) SMD resistor - power rating is 1/4W,if not indicated
(2) SMD capacitpr - temperture is 85'C & voltage is 50V,if not indicated.
R863 NA
Q805 2SC945
R862
NA
NC
R822 JUMP
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EL4212B Service Manual
7. WORKING THEOREM
A. RGB and DVI input. The RGB analog input for PC and component application. There are two analog RGB inputs on the JV427A31E. One is a 3-RCA connector for YPbPr component video , another one is a 15-pin VGA (D-sub) connector for RGB input. The MST5151LA is a complete monoli