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AL512/AL513 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 ----------------------------------------------------------------------------------------------------- 2~4 3.1. PRODUCT SPECIFICATIONS------------------------------------------------------------------------------ 2 3.2. SUPPORTING TIMING CHART---------------------------------------------------------------------------- 3~4 3.3. D-SUB CONNECTOR -------------------------------------------------------------------------------------------- 4 EXPLODED VIEW AND PARTS LIST --------------------------------------------------------------------------- 5~7 4.1. EXPLODED VIEW ------------------------------------------------------------------------------------------------ 5 4.2. EXPLODED VIEW PARTS LIST -------------------------------------------------------------------------------- 6~7 BLOCK DIAGRAM ---------------------------------------------------------------------------------------------------- 8 SCHEMATIC DIAGRAM -------------------------------------------------------------------------------------------- 9~15 6.1. VGA INPUT -------------------------------------------------------------------------------------------------------- 9 6.2. MVZ ----------------------------------------------------------------------------------------------------------------- 10 6.3. MCU----------------------------------------------------------------------------------------------------------------- 11 6.4. OUTPUT CONNECTOR ----------------------------------------------------------------------------------------- 12 6.5. Panel_Power ------------------------------------------------------------------------------------------------------- 13 6.6. Audio (except for AL513)----------------------------------------------------------------------------------------- 14 6.7. AC-DC Power------------------------------------------------------------------------------------------------------ 15 WORKING THEOREM----------------------------------------------------------------------------------------------- 16 WIRING DIAGRAM --------------------------------------------------------------------------------------------------- 17 PCB LAYOUT ----------------------------------------------------------------------------------------------------------- 18~25 9.1. MAIN PCB TOP VIEW ------------------------------------------------------------------------------------------- 18 9.2. MAIN PCB BOTTOM VIEW ------------------------------------------------------------------------------------- 19 9.3. CON PCB TOP VIEW -------------------------------------------------------------------------------------------- 20 9.4. CON PCB BOTTOM VIEW -------------------------------------------------------------------------------------- 21 9.5. AUDIO & IN PCB TOP VIEW----------------------------------------------------------------------------------- 22 9.6. AUDIO & IN PCB BOTTOM VIEW ---------------------------------------------------------------------------- 23 9.7. POWER PCB TOP VIEW ---------------------------------------------------------------------------------------- 24 9.8. POWER PCB BOTTOM VIEW ---------------------------------------------------------------------------------- 25 TROUBLE SHOOTING FLOW CHART ------------------------------------------------------------------------- 26~28 10.1. NO POWER -------------------------------------------------------------------------------------------------------- 26 10.2. NO DISPLAY------------------------------------------------------------------------------------------------------- 27 10.3. NO SOUND -------------------------------------------------------------------------------------------------------- 28 ADJUSTMENT---------------------------------------------------------------------------------------------------------- 29~30 11.1. ADJUSTMENT CONDITIONS AND PRECAUTIONS ------------------------------------------------------- 29 11.2. MAIN ADJUSTMENTS ------------------------------------------------------------------------------------------- 29 11.3. ALIGNMENT PROCEDURES----------------------------------------------------------------------------------- 29 ELECTRICAL PARTS LIST ---------------------------------------------------------------------------------------- 31~39

4.

5. 6.

7. 8. 9.

10.

11.

12.

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AL512/AL513 Service Manual
1. PRECAUTION AND NOTICES
1.1. SAFETY PRECAUTIONS This monitor 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 monitor as well as to the user. Carefully go over the following WARNINGS before installing and keep this guide handy. WARNINGS: This monitor should be operated only at the correct power sources indicated on the label on the rear end of the monitor. If you're unsure of the power supply in your residence, consult your local dealer or power company. Use only the special power adapter that comes with this monitor for power input. Do not try to repair the monitor your self as it contains no user-serviceable parts. This monitor should only be repaired by a qualified technician. Do not remove the monitor 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 monitor if the cabinet is damaged. Have it checked by a service technacian. Put your monitor only in a clean, dry environment. If it gets wet, unplug the power cable immediately and consult your service technician. Always unplug the monitor 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 monitor away from magnetic objects, motors, TV sets, and transformer. Do not place heavy objects on the monitor 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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AL512/AL513 Service Manual
2. SERVICE TOOL & EQUIPMENT REQUIRED
1. 2. 3. 4. 5. 6. 7. 8. SIGNAL GEN. MULTIMETER OSCILLOSCOPE SCREW DRIVER IRON ABSORBER SOLDER DUMMY LOAD (5ohm/200W)

3. SPECIFICATIONS
3.1. PRODUCT SPECIFICATIONS LCD Panel Power Management 15.0" TFT Energy Star compliant VESA DPMS compatible < 3W XGA 1024× 768 (max.) 0.297× 0.297mm 16.7M Color Max. (8bit) CR 10 Horizontal: -60°~+60° Vertical: -55°~+45° +90°, -5° 200 : 1 (min.) 350 : 1 (typ.) 200cd/ m2 (min.) 250 cd/m2 (typ.) Tr: 13 ms Tf: 27ms (typ.) 304.1mm× 228.1mm Operating: 0°C ~ +40°C Storage: -20°C ~ +60°C UL, CSA , DHHS, TÜV, CE, FCC-B, VDE-B, Energy Star. Input Voltage: 100~240 Vac Consumption: W/O Audio 30Watts (Max.) W/H Audio 35 Watts (Max.) 1Watt(L) + 1Watt(R)

Displayable Resolution Pixel Dimension LCD Display Color Viewing Angle

Tilt Contrast Ratio

Brightness

Response Time Active Display Area Temperature Compliance Power

Audio

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9/20/2002

AL512/AL513 Service Manual
3.2. SUPPORTING TIMING CHART ITEM TIMING Pixel Rate H TOTAL H DISPLAY H B-Porch H Width H Border V TOTAL V DISPLAY V B-Porch Vs Width V Border H/V Sync Interlace 1 28.322MHz 31.778us 25.422us 1.907us 3.813us 0.318us 14.268ms 12.711ms 1.112ms 0.064ms 0.222ms -/+ No. 2 25.175MHz 31.778us 25.422us 1.907us 3.813us 0.318us 16.683ms 15.253ms 1.049ms 0.064ms 0.254ms -/No. 3 30.240MHz 28.571us 21.164us 3.175us 2.116us 0.000us 15.000ms 13.714ms 1.114ms 0.086ms 0.000ms -/No. 4 31.500MHz 26.667us 20.317us 3.810us 2.032us 0.000us 13.334ms 12.800ms 0.427ms 0.080ms 0.000ms -/No. 5 36.000MHz 28.444us 22.222us 3.556us 2.000us 0.000us 17.778ms 17.066ms 0.626ms 0.057ms 0.000ms +/+ No.

720×400@70Hz 640×480@60Hz 640×480@67Hz 640×480@75Hz 800×600@56Hz

ITEM TIMING Pixel Rate H TOTAL H DISPLAY H B-Porch H Width H Border V TOTAL V DISPLAY V B-Porch Vs Width V Border H/V Sync Interlace

6 40.000MHz 26.400us 20.000us 2.200us 3.200us 0.000us 16.579ms 15.840ms 0.607ms 0.106ms 0.000ms +/+ No.

7 50.000MHz 20.800us 16.000us 1.280us 2.400us 0.000us 13.853ms 12.480ms 0.478ms 0.125ms 0.000ms +/+ No.

8 48.500MHz 21.333us 16.162us 3.232us 1.616us 0.000us 13.333ms 12.800ms 0.448ms 0.064ms 0.000ms +/+ No.

9 57.280MHz 20.112us 14.525us 3.771us 1.118us 0.000us 13.417ms 12.552ms 0.784ms 0.060ms 0.00ms -/No.

10 65.000MHz 20.677us 15.754us 2.462us 2.092us 0.000us 16.666ms 15.880ms 0.600ms 0.124ms 0.000ms -/No.

800×600@60Hz 800×600@72Hz 800×600@75Hz 832×[email protected] 1024×768@60Hz

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AL512/AL513 Service Manual
ITEM TIMING Pixel Rate H TOTAL H DISPLAY H B-Porch H Width H Border V TOTAL V DISPLAY V B-Porch Vs Width V Border H/V Sync Interlace 11
1024×768@70Hz

12
1024×768@75Hz

13

14

15

75.000MHz 17.707us 13.653us 1.920us 1.813us 0.000us 14.272ms 13.599ms 0.513ms 0.106ms 0.000ms -/No.

78.750MHz 16.660us 13.003us 2.235us 1.219us 0.000us 13.328ms 12.795ms 0.466ms 0.050ms 0.000ms +/+ No.

3.3. D-SUB CONNECTOR D-SUB 15 PIN CONNECTOR 1.R 2.G 3.B 4.NC 5.GND 6.GND 7.GND 8.GND 9. +5V 10.GND 11.NC 12.SDA 13.H-SYNC 14.V-SYNC 15.SCL

1 6 11

2 7 12

3 8 13

4 9 14

5 10 15

SIGNAL LEVEL CONNECTOR R G B H V SDA SCL SIGNAL RED GREEN BLUE H/SYNC V/SYNC DDC1/2B DDC1/2B DESCRIPTION 0.7vp-p(VIDEO) 0.7vp-p(VIDEO) 0.7vp-p(VIDEO) TTL positive or negative TTL positive or negative TTL TTL

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4.1. EXPLODED VIEW
(AL512/AL513)
2C04 X2

FIG.1

FIG.3

1F01 1F03

2C03

5B01

V901 1F04 1F02 1F05

2C05

2C09 X2 2C07 5B08 X3 5B02

MAIN PCB ASS'Y NOTE.2
1F07 1F09 X4 2C01

2C06

1F06

2C05

2C08

1F05 1F06 W601

1F16 X4

FIG.1
2C09 X2

MPR

TCO99

5B08 5B09

1F10 X9

FIG.2

1F19 1F18 5B15 X4 5B04 X4

FIG.3
5B05

1F09 X4 1F08 X3

1F10 X2

1F14 5B06 5B07 U901 1F30 X2 1F11 1F13
KEYPAD PCB ASS'Y

FIG.5
P983 1F17 X4

FIG.2 POWER PCB ASS'Y

1F26 1F15 X4 1F21 X2

FIG.4

9H01

FIG.4
AUDIO-IN PCB ASS'Y

1F12 1F23 9R81 9S61 X2 9S03 X4

NOTE.1
1F25 X2 1F22

FIG.5 AUDIO PCB ASS'Y

9S02 9S01

I/O CABLE

1F20

9H01 P984 1F24 X2 2C02 9H61

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AL512/AL513 Service Manual
4.2. EXPLODED VIEW PARTS LIST
Ref. No. Source Part No. DESCRIPTION SPECIFICATION Q`TY REMARK

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AL512/AL513 Service Manual
Ref. No. Source Part No. DESCRIPTION SPECIFICATION Q`TY REMARK

9/20/2002

5. BLOCK DIAGRAM
12V for INVERTER
VCOM 3.6V

AC 110~220V INPUT

SWITCHING POWER SUPPLY
5V for system I103,I104,I110 5V to 3.3V 3.3V to 2.5V
OSC. 12MHZ X101

DC-DC for PANEL POWER
I108 AIC1341 Q105,Q106,Q107 Q108,Q114,Q115

VDDG 18V VEEG -6V

VDDA 9.2V VDDD 3.3V

DC_EN

3.3V

2.5V

R G B

MRT
MASCOT VZ
I001 LCD CONTROLLER ADC+ SCALAR + T-CON

LCD FLAT PANEL
48 Bits

STH1,LP,INV1,INV2 POL,STV1,CPV

CPH1

Hsync Vsync BUF I101 74LCV14

PA-HSYNC BLT_ON PA-VSYNC BRIGHTNESS TO BACKLIGHT High Volt

INVERTER

I100 24LC16B EEPROM I102 24LC21 EEPROM DDC
EDID I2C BUS

I2C BUS

SDA/SCL FROM D-SUB 15 PIN

OPTION
I105 8051PLCC
VOLUMN CONTROL

AUDIO IN KEYPAD
OSC. 12MHZ X100

AUDIO AMP. I601 TDA7053A/TDA7057

SPEAKER

15 inch LCD MONITOR BLOCK DIAGRAM

9/20/2002

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6. SCHEMATIC DIAGRAM
6.1. VGA INPUT

P701 8 HEADER 2mm 8 7 6 5 4 3 2 1

JT166L 2202120100

+3.3V
2 DOWN UP 1 PWR/SW PSM/LED PWR/LED

D103 NC DDC-SCL DDC-SDA HSYNC VSYNC

D104 NC

D105 NC
GREEN ORANGE

S701 D108 NC D109 NC D110 NC S705 D701

D114 NC

C169 VPORT

D115 NC

C170 VPORT

D106 NC

D107 NC

S704

S703

S702

J101 13 12 11 10 9 8 7 6 5 4 3 2 1 13 12 11 10 9 8 7 6 5 4 3 2 1 R-GND G-GND B-GND PC_5V DDC-SDA DDC-SCL RED GREEN BLUE HSYNC VSYNC GREEN

BLUE

L101 L102 RED L103

32 32 32

C101 C102 C103

0.1u PA-BLUE 0.1u PA-GREEN 2 0.1u PA-RED 2 2

C105 VPORT

C106 VPORT

C107 VPORT

C100

NC SOGI 2

CONN RCPT 13 VGA-GND I101A 1 2 3 I101B 4

Optional

R105 VGA_GND L100 200 75 1% 75 1% 75 1% R103

22 22

R104 100 PA-HSYNC 2 C104

R100 R101 R102

C108

R105

74LVC14 R106 1K/NC

74LVC14 +3.3V

VPORT 10K/NC

33p

I101C C109 VCC 0.1u D111 1N4148 DDC_VCCA C112 0.1u 1 2 3 4 I102 NC NC NC VSS VCC VCLK SCK SDA 8 7 6 5 R109 R110 R111 150 150 150 +3.3V VSYNC C113 DDC-SCL DDC-SDA DDC-SCL 3 DDC-SDA 3 0.1u D112 1N4148 VPORT R108 change to C172 150pF C172 C110 Optional 5 6 9

I101D 8

R107 100 PA-VSYNC 2 C111

74LVC14

74LVC14

33p

I101E 11 10 74LVC14 VCC IS +3.3V D12 NF4 C14 R11 I2

74LVC14 I101F 13 12

24LC21

8 PIN SOCKET P108

DDC-SCL1 3 DDC-SDA1 3

74LVC14

AL512/AL513

9/20/2002

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6.2. MVZ
VCC
I103 3 C116 GND VIN LT1117CST-3.3 VOUT 2 R085 NC R084 0 L104 200 C114 22u / 16V +3.3V C115

+3.3V R11222/NC R11322 R114 R116 R117 220uF/ 16V R080 CPH2 10K 10K 10K R118 R119 R120 3.3K R124 10K R121 R122 R123 3.3K 80 22 R11522
OE3 OE2

STV1 CPV TP1 TP2 CPHA TP3 PWM0 PWM1 INV2 BLT_ON

4 4

22/NC 22/NC 4.7K

22u / 16V

1

3 3 4 3

VDDCTRL 3

R079 3 RESET_MASCOT 3
3 3 3

R186 1K/NC

R126 R125 R127 R128

100 NC 100 100

3.3K

R077 100

GB[0..7] RB[0..7]
RB7 RB6 RB5 RB4 RB3 RB2 RB1 RB0 GB7 GB6 GB5 GB4 GB3 GB2 GB1 GB0 +3.3V

4 4
CPH2 C162 NC

RESET
SCL SDA IRQ-

VCC
I104 3 C119 GND VIN LT1117CST-3.3 VOUT 2 L105 200 C118 22u / 16V

C117 10uF/50V 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40

TVCLK IRQ# SCS# SDA SCL RST STV3 STV1 DCVSS CPV OE3 OE2 OE1 CPH2 PWM0 PWM1 DCVDD INV2 LCD_VDD LCD_VBL DCVSS RED_OUTB_7 RED_OUTB_6 RED_OUTB_5 RED_OUTB_4 DOBVDD RED_OUTB_3 RED_OUTB_2 RED_OUTB_1 RED_OUTB_0 DOBVSS GRN_OUTB_7 GRN_OUTB_6 GRN_OUTB_5 GRN_OUTB_4 DOBVDD GRN_OUTB_3 GRN_OUTB_2 GRN_OUTB_1 GRN_OUTB_0

160 159 158 157 156 155 154 153 152 151 150 149 148 147 146 145 144 143 142 141 140 139 138 137 136 135 134 133 132 131 130 129 128 127 126 125 124 123 122 121

PLL-VDD

BB[0..7]
120 119 118 117 116 115 114 113 112 111 110 109 108 107 106 105 104 103 102 101 100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 BB7 BB6 BB5 BB4 BB3 BB2 BB1 BB0 RA7 RA6 RA5 RA4 RA3 RA2 RA1 RA0 GA7 GA6 GA5 GA4 GA3 GA2 GA1 GA0 BA7 BA6 BA5 BA4 BA3 BA2 BA1 BA0

4

1

22u / 16V 3.3-ANA L106 200 C121 10uF/50V

GND Vout Vin

1 2 3 SOT-223 Vout L107 200 3.3-PLL C126

10uF/50V

1 PA-VSYNC 1 PA-HSYNC 1 SOGI

3.3-PLL
1 1 PA-BLUE PA-GREEN PA-RED

41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80

C132 0.1u

AVCC AGND VREF CP CZ VCCAB BI GNDAB BCLP VTOP VBOT VCCAG GI GNDAG GCLP TOUTP TOUTM VCCAR RI GNDAR RCLP PLLVDD PLLVSS DCVSS GPIO2 GPIO1 GPIO0 STH1 STH8 LP DCVDD SHC XTAL XTALI DIBVSS RLS POL CPH1 INV1 DCVSS

DIBVDD CAP_HREF CAP_HSYNC CAP_VSYNC DIBVSS BLU_INB_0 BLU_INB_1 BLU_INB_2 BLU_INB_3 BLU_INB_4 BLU_INB_5 BLU_INB_6 BLU_INB_7 DCVDD GRN_INB_0 GRN_INB_1 GRN_INB_2 GRN_INB_3 GRN_INB_4 GRN_INB_5 GRN_INB_6 GRN_INB_7 DCVSS RED_INB_0 RED_INB_1/UV1 RED_INB_2 RED_INB_3 RED_INB_4 RED_INB_5 RED_INB_6 RED_INB_7 DIBVDD DVDD DVSS DTEST DVCC DGND VGA_VSYNC VGA_HSYNC SOGI

I001

Mascot VZ

DOBVSS BLU_OUTB_7 BLU_OUTB_6 BLU_OUTB_5 BLU_OUTB_4 DOBVDD BLU_OUTB_3 BLU_OUTB_2 BLU_OUTB_1 BLU_OUTB_0 DOBVSS RED_OUTA_7 RED_OUTA_6 RED_OUTA_5 RED_OUTA_4 DCVDD RED_OUTA_3 RED_OUTA_2 RED_OUTA_1 RED_OUTA_0 DCVSS GRN_OUTA_7 GRN_OUTA_6 GRN_OUTA_5 GRN_OUTA_4 DOBVDD GRN_OUTA_3 GRN_OUTA_2 GRN_OUTA_1 GRN_OUTA_0 DOBVSS BLU_OUTA_7 BLU_OUTA_6 BLU_OUTA_5 BLU_OUTA_4 DOBVDD BLU_OUTA_3 BLU_OUTA_2 BLU_OUTA_1 BLU_OUTA_0

+3.3V

C163 0.1u

RA[0..7]

4

C120 0.1u C122 0.1u C123 0.1u

GA[0..7]

4

C124 0.1u C125 0.1u C127 0.1u C128 0.1u

BA[0..7]

4
C129 0.1u C130 0.1u C131 0.1u

R133 R135 22

80

INV1

4 R078 POL 4 80

PLL-VDD C134 0.1u

1

CPHA R134 0 C161 NC

CPH1 C133 22p

4

Vref=2.5V

R13775 1 TL431

I110 C139 0.1u
+

3

C135 C140 10uF/50V 150p 50VNPO J R142 0

C136 C137 0.01u C141 4700p C145 0.1u C146 0.1u

C138 4700p C143 4700p
NC R087 NC R086

R139 STH8 R140 R141 R143

80 22/NC 80 22 2365809996 1 2 3 4 8 XIN/CLK VDD 7 XOUT FS0 6 FS1 MOD 5 LF VSS I113 P2781 R091 1.2k C090 680pf C091 6800pf

LP STH1 TP6

4 4

GND

5600p 50V X7R K

2

3.3-ANA
TRACE> 30 MILS C144 0.1u

C142 0.01u

DA1 C45 R44 I3
R088 NC

R144 1M

+3.3V

X101 12MHZ C148 22p
0 R090

R092 0
NC R089

C147 22p

AL512/AL513

9/20/2002

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6.3. MCU

VCC R197 4.7K C149 0.1u VCC R146 4.7K R198 R145 4.7K 4.7K R147 R148 4.7K B NC LED_GREEN AMBER MUTE PWM1 Q101 SST3904/NC RESET_MASCOT 2 DC_EN1 R074 150 R075 150 R082 150 RxD TxD R083 150 R189 4.7K R188 4.7K Q110 SST3904 R081 150 Winbond ISP 8 VCC 150 6 5 LED_OR LED_GRN GND 150 150 150 150 150 150 J103 P M U D E 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 VCC MMBT3906 Q113 D113 1N4148 1 R195 2.2K + C164
1uF/50V

C

E

MMBT3906 R153 Q102 1 10K 330 R162 2.2K R076 10K 1 3 2 Q100 MMBT3906 R163 LED_OR 3 2 R154 LED_GRN

C150

22p 35 X100 21 20 RESET 10 2 IRQ14 15 16 17 2 3 4 5 6 7 8 9 POWER

I105 EA/VP X1 X2 RESET

44

C151

22p

12MHZ

AD0 AD1 AD2 AD3 AD4 AD5 AD6 AD7 A8 A9 A10 A11 A12 A13 A14 A15

/ / / / / / / / / / / / / / / /

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

43 42 41 40 39 38 37 36 24 25 26 27 28 29 30 31 19 18 32 33 13 11

VCC

R150 NC

C066 22u / 16V

ENTER MENU UP SDA SCL

INT0 / P3.2 INT1 / P3.3 T0 / P3.4 T1 / P3.5 P1.0 / T2 P1.1 / T2EX P1.2 P1.3 P1.4 P1.5 P1.6 P1.7

DDC-SCL1 1 DDC-SDA1 1 VCC

330

12 INT2 / P4.3 1 INT3 / P4.2 22 VSS 34 23 P4.1 P4.0

2 2

SDA SCL

P3.7/ RD P3.6 / WR PSEN ALE P3.1 / TXD P3.0 / RXD

Audio control for LP14/AL512 only
12V 3PIN 2mm J109 1 1 2 2 3 3 L115

3.5X9X0.8

DOWN

EN_18V

8051PLCC

PWM1

PWM1
+

2 VCC C167 0.1u R191 4.7K 4.7K R190 NC R193

VCC

R155 R156 R157 R158 R159 R160 R161 FOR Winbond ISP

C289 470uF/16V C168 0.1u

C152

I100 4 1 2 3 7

R187 DC_EN1 RESET C165 0.1u
5V

4.7K

0.1u

8 PIN SOCKET P100

C153 C154 C155 C156 0.1u 0.1u 0.1u 0.1u VCC

C157 0.1u

1

24LC16B

C166 0.1u

R194 100K

2

VSS A0 A1 A2 WP

SCL SDA

5 DC_EN C171
NC

2

3 R196 4.7K

2 2 VDDCTRL

Q111 SST3904

+

VCC L109 3.5X9X0.8
+

12V

C282 470uF/16V R168 1K

VCC 5pin/2mm R165 4.7K SCL 1 1 DDC-SCL SDA DDC-SDA TxD RxD R166 4.7K 10 9 8 7 6 5 4 3 2 1 R185 J104 10 9 8 7 6 5 4 3 2 1 MRT DEBUG I/O/NC 2.0 mm 2 VDDCTRL
3.3K
6 7 39 40 1 17

L113 3.5X9X0.8

NC

GND

R183 VCC
0

Q104 2SA1020 R172
4.7K

LT1117CST-3.3 I112 3 VIN VOUT 2

L108
200

J108 1 1 2 2 3 3 4 4 5 5 VDDD 4

R169 Brightness BLT_ON 2
+

1K C160 10uF/50V

Q109 PWM0
SST3904

C288 470uF/16V

2

R184
NC

C209
0.1u

1

+3.3V

C212
0.1u

P105
18 28 29

R173 R171 Q103
1K

L114
NC

+3.3V
SST3904

PLCC-44 SOCKET

AL512/AL513

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6.4. OUTPUT CONNECTOR
2 BA[0..7]

33PX4

BA0 BA1 BA2 BA3 BA4 BA5 BA6 BA7

L120 L121 L122 L123 L124 L125 L126 L127

80 80 80 80 80 80 80 80

T_BA0 T_BA1 T_BA2 T_BA3 T_BA4 T_BA5 T_BA6 T_BA7

1 3 5 7 1 3 5 7

CP01

2 4 6 8 2 4 6 8

CP02
33PX4 33PX4

GA0 GA1 GA2 GA3 GA4 GA5 GA6 GA7
2 GA[0..7]

L128 L129 L130 L131 L132 L133 L134 L135

80 80 80 80 80 80 80 80

T_GA0 T_GA1 T_GA2 T_GA3 T_GA4 T_GA5 T_GA6 T_GA7

1 3 5 7 1 3 5 7

CP03

J105 2 4 6 8 2 4 6 8 T_RA0 T_RA1 T_RA2 T_RA3 T_RA4 T_RA5 T_RA6 T_RA7 T_GA0 T_GA1 T_GA2 T_GA3 T_GA4 T_GA5 T_GA6 T_GA7 T_BA0 T_BA1 T_BA2 T_BA3 T_BA4 T_BA5 T_BA6 T_BA7 C283 0.1uF 2 4 6 8 2 4 6 8 5 VCOM 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 CON50 2 2 2 2 2 STH1 LP INV1 INV2 POL C287 0.1uF

J106 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 CON50

CP04
33PX4 33PX4

RA0 RA1 RA2 RA3 RA4 RA5 RA6 RA7
2 RA[0..7]

L136 L137 L138 L139 L140 L141 L142 L143

80 80 80 80 80 80 80 80

T_RA0 T_RA1 T_RA2 T_RA3 T_RA4 T_RA5 T_RA6 T_RA7

1 3 5 7 1 3 5 7

CP05

2 4 6 8 2 4 6 8

5 VDDA

CP06
33PX4

T_RB0 T_RB1 T_RB2 T_RB3 T_RB4 T_RB5 T_RB6 T_RB7 T_GB0 T_GB1 T_GB2 T_GB3 T_GB4 T_GB5 T_GB6 T_GB7 T_BB0 T_BB1 T_BB2 T_BB3 T_BB4 T_BB5 T_BB6 T_BB7 2 CPH1 CPH1

33PX4

2 BB[0..7]

BB0 BB1 BB2 BB3 BB4 BB5 BB6 BB7

L144 L145 L146 L147 L148 L149 L150 L151

80 80 80 80 80 80 80 80

T_BB0 T_BB1 T_BB2 T_BB3 T_BB4 T_BB5 T_BB6 T_BB7

1 3 5 7 1 3 5 7

CP07

3.6V
3 VDDD

CP08
33PX4 33PX4

3.3V
2 STV1 2 CPV 5 VDDG 5 VEEG

GB0 GB1 GB2 GB3 GB4 GB5 GB6 GB7
2 GB[0..7]

L152 L153 L154 L155 L156 L157 L158 L159

80 80 80 80 80 80 80 80

T_GB0 T_GB1 T_GB2 T_GB3 T_GB4 T_GB5 T_GB6 T_GB7

1 3 5 7 1 3 5 7

CP09

2 4 6 8 2 4 6 8

18V -6V

CP10
33PX4 33PX4

C284 0.1uF

C286 0.1uF C285 0.1uF

VDDA

RB0 RB1 RB2 RB3 RB4 RB5 RB6 RB7
2 RB[0..7]

CP12
33PX4

VDDG VEEG

C216
+

+

C215 10uF/50V

+

L160 L161 L162 L163 L164 L165 L166 L167

80 80 80 80 80 80 80 80

T_RB0 T_RB1 T_RB2 T_RB3 T_RB4 T_RB5 T_RB6 T_RB7

1 3 5 7 1 3 5 7

CP11

2 4 6 8 2 4 6 8

VCOM VDDD

C214 10uF/50V

+

C217 10uF/50V

AL512/AL513
10uF/50V

+

C218 10uF/50V

9/20/2002

-12-

6.5. Penel Power
CONN SOCKET 5 J110 1 1 2 2 3 3 4 4 5 5
12V 5V

2SA1020Y R221 10K/0603

2A/24V/1206 F101

+

Q114

-10.9V D201 EP05QC04/SMD

Q105 2SA2907 R202 1K/0603 I106 TL431A R201 4K32 1%/0603 -4.3V R200 10K/0603 +

0.25A/0603 F103

C301 10uF/50V D202 EP05QC04/SMD

C302 10uF/50V

C305 NC

+

C303 10uF/50V

R222 360/1206

R223 360/1206 D203 EC10QC04/SMD

3

DC_EN

R224 0/0603 R225 100K/0603

L111 33uH Q115 PMBT3904/SMD C307 + 220uF/16V

R226 10R/0603 + R20736K 1 D204 NC 2 C311 10uF/50V + 3 4 5 6 7 C300 0.1uF 8 16 15 14 13 12 11 10 C3091uF/50V

Q106 CEA3055L R206 10K/0603

+ C308 100uF/16V R205 21K 1%/0603

Phase Lgate Ugate Pgnd SD OCSET VCC FB2 FB1 FB3 SS COMP1 Vin2 GATE3

10nF/0603 R211 C310 12K/0603 C313 22pF/0603

R209 5K6/0603

R210 110/0603 R212 3K3 1%/0603 + Q107 CEA3055L C314 10uF/50V

C312 22nF/0603

C304 0.1uF

9 Gate2 GND R213 I108 AIC1341/SMD 3.3K/0603

D205 EP05QC04/SMD EN_18V

VDDA VDDG

20ms Delay

+

+

D200 EP05QC04/SMD

R216 1.15K 1%/0603 C316 1uF/50V

R214 1K VR 10% C317 1uF/50V

R215 1.47K 1% 0603

26.2V D206 EP05QC04/SMD

Q108 KSP2222A

R217 1K/0603 + I109 TL431A 2.5V

C318 47uF/50V

+

C321 0.1uF

VCOM_3.6V 7.6mA VDDG_18V VEEG_-6V VDDA_9.2V

VCOM VDDG VEEG VDDA

4 4 4 4

+ C315 100uF/16V R227 0/0603

F102 0.25A/0603

R218 20K5,1%/0603 C319 NC +

R219 3K3 1%/0603

AL512/AL513

9/20/2002

-13-

R605 15/3W

P604 L609 2UH 3 2 VOLUME R604 390 R606 3K 2 R604 10K/NC 3 1 2SC945/NC Q601 R612 15K/NC 1 2mm pitch

6.6. Audio (except for AL513)
+ C602 1000uF/16V R602 15/3W

R603 180K

C605 4 7 1 104 R613 4.7K/NC L603 R+ 13 2UH C607 NC C608 C601 1uF R609 L607 2UH C611 1uF R610 100 10K R607 100 R608 4K7 C610 + 5 C612 R611 4K7 4700p 6 9 IN2 PG2 PG1 SG L10 4700p 2 RNC L+ 8 2UH C609 L606 NC 2UH + C613 47uF/16V/NC 11 2UH L605 L604

COTR2

P603 3 2 1 2.5mm pitch L601 2UH

R601

10K

C606 + 10uF/50V 10uF/50V P602 3 IN1

12

COTR1

Vp

4

3

2

I601 TDA7057AQ

2mm pitch P607

To Speaker
2 4 1 5 3 COMPONENT SIDE AUDIO IN PCB
P601 P_JACK 4 2 L608 2UH L-in 1 3 5 R-in 3 2 1 pitch=2mm

2428106xxx Jumper

1

AL512/AL513

9/20/2002

-14-

6.7. AC-DC Power

R809 15/1W

C822 2200PF/500V 1 2 D805

P801 Connector 1 2

F801 2.5A/250V L803 JUMPER

L801 L805 JUMPER C801 0.22uF/275V 5 1 8 4 C802 4700PF 2 1

1

0.22uF/275V C824 1

10/3A R840

T801 L=1.2mH 2 1 KBJ4J 4A 600V D801 1 1 47K/5W R805 1 0.022UF/400V C806 2 3 2 9 5 D802 UF4007 8 6 C823 1 2 4700pF/250Vac D803 R816 10/0.5w 7 1500uF/10V 1500uF/10V C816 NC D804 FCH20A10 20A100V 12 11 10 1 2 C811 NA 1 C813 C814 2 31DQ06FC C817 1000uF/10V D806 15V L804 15UH D807 6.8V R817 1K P802 +12V GND GND +5V +5V R841 470 5 4 3 2 1 S5B-XH-A 5P/P=2.5

t
4 1 1

1

+ 2 C812 100uF/400V

1M 1/2W

C803 4700PF 2 2

R801

2

C807 68P/1KV 1

2

2

C815 1500uF/10V

3

1

R804

2

FG

430K/3W

L802 Bead,T3.5x0.8x9

UF4005 R815 120/1W R814 2K2/1% R811 4K7K/1% 1 1 3 C809 100n/50V 2 2 C808 47uF/50V 2 R810 20K 1%

4
I801 KA5M0365R

GND Vcc

1
I802 TLP621

C819 1000P/50V

D

FB

3

2
R813 100 C820 100n/50V R812 2K43K/1%

1

4

R806 3K48/1% C810 0.033UF/100V MEF R807 JUMPER Q801 NC

I803 TL431CLP 2

3

1

(1) Resistor - power rating is 1/8W , if not indicated. (2) AL-EL capacitor - temperture is 105'C , if not indicated.

2

AL512/AL513

9/20/2002

-15-

AL512/513 Service Manual
7. WORKING THEOREM
A. DC-DC CONVERTER This block provides adjustable output voltages of 9.2V, -6V, 18V and 3 to 4V for the panel. It consists of a Q114 transistor and power switch IC I108 (AIC 1526-1). When DC_ EN signal is high, then Q114 is activated and send one signal to activate I108. At this time I108 will send 200KHz 12V PWM to Q106, Which is connected with L111, Q106, D203 and C308, to boost 5V to 9.2V. And I108 offers the adjustable voltage of 3V to 4V. By sending out pulses from pin 2 and pin 16 of I108 to double voltage circuit consisting of C301, D201, D202 and C303, leaner regulator with Q105, would output ­6V, 18V output id created, according to the rule of ­6V creation. B. Scalaring controller MascotV scalar is a highly integrated solution that combines a high performance ADC with an advanced image processing controller. Using advanced image scaling algorithms, Mascot V has intelligently adaptive sub-algorithms that will automatically optimize the display quality for different images ­ the text is sharper and the graphics is smoother. The built-in analog interface includes a 160Mhz, 8-bit 3-channel ADC, preamplifier, and VGA, allowing seamless support to resolutions from VGA to XGA. MascotV also offers other integrated functions such as an internal OSD that supports all languages, and build-in line buffers that allows support to a wide range of LCD panels. The scalar implements four advanced display technologies: 1. Sampling RGB input signals by fully integrated triple-channel ADC, PLL, and pre-amplifier 2. Automatically calibrate for vertical and horizontal alignment to center display and phase calibration 3. High-quality advanced scaling: Enhanced and adaptive scaling algorithm for optimal image quality 4. One and two pixels per clock panel support: Up to 24 bits per pixel. The panel interface consists of 48-bit panel data bus, Start Pulse(STH1) and Clock (CLKH), Polarity(POL)/Latch pulse(LP) for source driver IC, Start pulse(STV1) and Clock(CLKV) for gate driver IC, and Data inversion control(HMSO/HMSE) for odd/even pixel bus and the power supply (+3.2V, +3.45V,+9.2V, +18Vand-6V) for panel driver IC use. C. Inverter In order to drive the CCFLs embedded in the panel module, there is a ROYER inverter to convert to convert The input 12V up to hundreds of AC voltage output. The inverter is formed by symmetric, in order to drive the separate lamp modules. The input stage consists of a PWM controller, buck choke, and switching MOSFET to convert DC input into AC output. The output stage consists of a tuning capacitor, transformer, push-pull transistor pair to boost ac output up to hundreds of voltage. And one resister is serial to lamp for output cuttent feedback. A 5-pin connector is the only interface to control the inverter. Pin 1 is 12V input, Pin 2/4 is the returns, pin3 is the control of output current, and pin 5 is the enable/disable control.

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9/20/2002

8. WIRING DIAGRAM
(AL512/AL513)

LCD PANEL
JP3

INVERTER PCB
P981 P983

AL512 ONLY AUDIO IN PCB
P601
2202119500

P602

JP1

P602 TO:GND
JP2 P604 P603 P607
2202119400 VER:0.06 DATE:11.23.90

P980

AUDIO PCB

J108

5 1

1

J110

J106

50

1

50

1

J105

J107

1

5

P802

POWER PCB
MAIN PCB
I105
8 1 3 1

5

I001

I601

-17-

P802
J101

13 1

TO:METAL FITTG GND

P986

W601

J109

J103

P984
P801

2202120100 V:0.02

(BRN)

(BLU)
P701

SPK(L)

SPK(R)

KEYPAD PCB
N (BLU) L (BRN) P985 P961 I/O CABLE

9/20/2002

AC SOCKET ASS'Y

9. PCB LAYOUT
9.1. MAIN PCB TOP VIEW

AL512/AL513

9/20/2002

-18-

9.3. CON PCB TOP VIEW

AL512/AL513

9/20/2002

-20-

9.5. AUDIO & IN PCB TOP VIEW

AL512/AL513

9/20/2002

-22-

9.7. POWER PCB TOP VIEW

AL512/AL513

9/20/2002

-24-

AL512/513 Service Manual
10. TROUBLE SHOOTING FLOW CHART
10.1. NO POWER

Start

5V on C101

N

Check D804,D807, I801,I802,I803 D801,F801

Y

I101 is Failed?

Y

Replace I101

N

5V on C314,C319

N

Check Q101,I107,Q114

Y

9.2V on C308

N

Check L111,D203, I108,Q106

Y

18V on F102

N

Check Q108,I109,F102

Y

-6V on F103

N

Check D201,D202,F103, C302,Q105,I106

Y

Check 3~4V Q107,C315,I108

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9/20/2002

AL512/513 Service Manual
10.2. NO DISPLAY
No Display

Check Power region

Dark

Check LED Color

Amber

Check IO cable is connect OK ?

Yes

Check I/P signal is in pwr saving state? No Check I002 is OK ?

Amber & Green Green Check X100 Crystal 12MHz is working? Yes Refer to NO POWER trouble shoot flow char Press Power key ON/OFF is OK ? (See LED is green or dark.) No Check uP I105 Reset is Ok ? Yes

Change I105

Yes

No

Check Reset circuit Q113,D113

Press "1" key if OSD menu is on display ?

No

Check Keypad pcb is OK ? Yes Check if Inverter is Ok ? No Change Inverter

Yes

Check I001 MVZ if RST Pin#155 have reset pulse ? Yes Check X101 Crystal 12MHz is working ? Yes Check J105,J106 data bus have signal Yes Check panel Powers VDDD=3.3V VDDA=9.2V VDDG=18V VEEG=-6V Yes Change LCD panel

No

Check uP I105 pin#24 send reset ? pulse ? Yes

No Change X101

No

Change I001 LCD controller IC

-27-

9/20/2002

AL512/513 Service Manual
10.3. NO SOUND

Speaker No Sound

Earphone no sound

Check Volume Control Pin 1&7 Voltage 0.4~0.85V ? Yes

No

Adjust OSD Volume control to Max. and Check Pin 1&7 Voltage >0.4V

No

Check Q010 Collector has PWM output ? Yes

Yes

Check if I601 Pin 4 Vp=12V ?

No

Check R602 & R605 is OK ?

Check if Speaker is OK ?

Yes Yes Change I601 TDA7057AQ Yes

-28-

9/20/2002

AL512/513 Service Manual
11. ADJUSTMENT

11.1. ADJUSTMENT CONDITIONS AND PRECAUTIONS 1. Approximately 30 minutes should be allowed for warm up before proceeding. 2. Adjustments should be undertaken only on those necessary elements since most of them have been carefully preset at the factory. 3. ESD protection is needed before adjustment.

11.2. MAIN ADJUSTMENTS NO. 1. 2. 3. 4. FUNCTION V-com Voltage Eeprom Initial White Balance Geometry DESIGNATION R124 (VCOM ADJ) Function Key Function Key Function Key

11.3. ALIGNMENT PROCEDURES Adjustment Conditions and Precautions: (A). Power supply voltage: AC 110/120V 10% 60 Hz 5%, AC 220/240V 10% 50 Hz 5%. (B). Warm up time: The display must be power ON for at least 30 minutes at full white pattern before starting alignments. This is especially critical in color temperature and white balance adjustments. (C). Signals: reference the front detail specifications and timing table. Video : reference the front detail specifications. 1. Adjustment of V-com Voltage: A. Timing : 1024x768@60Hz. B. Pattern : The picture of " Shut down windows" or Full screen pixel ON/OFF pattern. C. Adjust R124 to let the center of the screen no flash. 2. Eeprom Initial: A. Timing : 1024x768@60Hz. B. Pattern : Cross hatch. C. Switch off the power and press the " " and " 2 " key simultaneously, then switch on the power. At this time we can enter into the factory mode when press the " 1 "key. D. Select the "EEPROM INIT" item and press " 2 "key to reset the Eeprom. 3. White Balance Adjustment : A. Timing : 1024x768@60Hz. B. Pattern : Full white. C. Set CA110 color analizer at the center of screen and along a perpendicular to the screen at 20cm from the display. D. Move " " key to select the " WHITE BALANCE" item in the factory mode and press " 2 "key, then the white balance will be auto dadjusted. E. Color temperature verification: (Set Brightness and Contrast to Maximum) -299/20/2002

AL512/513 Service Manual
(1) 6500K verify : press " " ," " key to move cursor to 6500K at factory mode and press " 2 " key, and then check the color temperature is x=0.310 0.03 y=0.330 0.03 Y 200 cd/m2

4.

(2) 9300K verify : press " " ," " key to move cursor to 9300K at factory mode and press " 2 " key, and then check the color temperature is x=0.283 0.03 y=0.298 0.03 Geometry: A. Pattern : Cross hatch B. Change each mode on the timing table in turns and excute the "Auto Adjust " function on the OSD menu , then all the data of the each mode will be auto saved after finish the "Auto Adjust " function. C. Until all of modes are agjusted, press " 1 " to exit OSD menu and switch power off to exit factory mode.

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9/20/2002

AL512/AL513 Service Manual
12. ELECTRICAL PARTS LIST

LOC NO.

SOURCE

PART NO.

DESCRIPTION

SPECIFICATION

REMARK

MAIN P.C.BOARD

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AL512/AL513 Service Manual
LOC NO. SOURCE PART NO. DESCRIPTION SPECIFICATION REMARK

9/20/2002

AL512/AL513 Service Manual
LOC NO. SOURCE PART NO. DESCRIPTION SPECIFICATION REMARK

9/20/2002

AL512/AL513 Service Manual
LOC NO. SOURCE PART NO. DESCRIPTION SPECIFICATION REMARK

9/20/2002

AL512/AL513 Service Manual
LOC NO. SOURCE PART NO. DESCRIPTION SPECIFICATION REMARK

9/20/2002

AL512/AL513 Service Manual
LOC NO. SOURCE PART NO. DESCRIPTION SPECIFICATION REMARK

CON P.C.BOARD

9/20/2002

AL512/AL513 Service Manual
LOC NO. SOURCE PART NO. DESCRIPTION SPECIFICATION REMARK

POWER P.C.BOARD

9/20/2002

AL512/AL513 Service Manual
LOC NO. SOURCE PART NO. DESCRIPTION SPECIFICATION REMARK

AUDIO P.C.BOARD (AL512 Only)

AUDIO IN P.C.BOARD (AL512 Only)

OTHERS

9/20/2002

AL512/AL513 Service Manual
LOC NO. SOURCE PART NO. DESCRIPTION SPECIFICATION REMARK

9/20/2002