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S/M No. : TSP110AEF0
Service Manual
Model : DSP-4210GM CHASSIS : SP-110
DAEWOO ELECTRONICS CO., LTD
http : //svc.dwe.co.kr May.2001
TABLE OF CONTENTS
1. Safety precautions ........................................................................................................................... 2 2. Product specification ...................................................................................................................... 4 3. Block diagram .................................................................................................................................. 6 4. Adjustment (How to use service remote controller) ..................................................................... 7 5. When changing the new board ....................................................................................................... 9 6. Trouble shooting .............................................................................................................................. 10 7. Assembly list ....................................................................................................................................30 8. Circuit diagram .................................................................................................................................31 9. Exploded view ..................................................................................................................................35
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Service manual SP-110
1. SAFETY & PRECAUTIONS
SAFETY CHECK AFTER SERVING Examine the area surrounding the repaired location for damage or deterioration. Observe that screw, parts and wires have been returned to original positions. Afterwards, perform the following tests and conform the specified values in order to verify compliance with safety standards. 1-1. Insulation resistance test Confirm the specified insulation resistance between power cord plug prong and externally exposed parts of the set (video and audio input terminals, speaker out terminals etc) is greater than values given in table 1 below. 1-2. Dielectric strengthen test Confirm specified dielectric strengthen between power cord plug prongs and exposed accessible parts of the set (video and audio input terminals, speaker out, etc) is greater than values given table 1 below. 1-3. Clearance distance When replacing primary circuit component, confirm specified clearance distance (d), (d') between soldered terminals (see Fig1), and between terminals and surrounding metallic parts. See table 1 below. Rating for selected areas (table 1) AC Line Voltage
100V 110 to 130V 110 to 130V 200 to 240V
Region
Japan USA &Canada Europe Australia Latin America
Insulation Resistance
1M / 500V DC / 500V DC
Dielectric Strength
1kV AC 1min. 900V AC 1min 4kV AC 1min.
Clearance Distance(d),(d')
3 3.2 6(d) 8(d) (a : Power cord)
10M
* Class model only
NOTE
This table is unofficial and for reference only. Be sure to confirm the precise values for your particular.
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Service manual SP-110
1-4. Leakage current test Confirm specified or lower leakage current between B(earth ground, power cord plug prongs) and externally exposed accessible parts (video and audio input terminals, speaker out, etc.) Measuring method:(Power ON) lnsert load Z between B(earth ground, power cord plug prongs) and exposed accessible parts. Use AC voltmeter to measure AC voltage across both terminals of load Z. See Fig.2 and following table. Leakage current ratings for selected are as Ac Line Voltage
100V 110 to 130V
Region
Japan USA & Canada Europe Australia
Load Z
1 1 2 50 15 F
Leakage Current( i ) Clearance Distance(d),(d')
i i i 1mArms. 0.5mArms. Exposed accessible parts Exposed accessible parts Antenna earth terminals Other terminals
110 to 130V 200 to 240V
0.7mA peak 2mAdc i 0.7mA peak i 1mAdc i
NOTE
This table is unofficial and for reference only. Be sure to confirm the precise values for your particular country and locality.
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Service manual SP-110
2. PRODUCT SPECIFICATION
[ DSP-4210GM ] ITEM
1. GENERAL 1-1. MODEL NO 1-2. CHASSIS NO 1-3. SCREEN SIZE 1-4. COUNTRY 1-5. RESOLUTION 1-6. REMOCON TRANSMITTER TYPE 1-7. SAFETY STANDARD 2. MECHANICAL 2-1. DIMENSION 1) WITHOUT STAND 2) WITH STAND 3) BOX 2-2. WEIGHT 1) WITHOUT STAND 2) WITH STAND 3. ELECTRICAL & OPTICAL 3-1. COMPOSITE VIDEO INPUT SIGNAL
SPECIFICATION
DSP-4210GM SP-110 42" (16:9) WORLD WIDE 853(W) X 480(H) R-V2A(ENGLISH), R-V2AK(KOREAN) UL, CSA, CE, KE
REMARK
W X H X D = 1055 X 652 X 85 W X H X D = 1055 X 730 X 85 W X H X D = 1190 X 870 X 480 33kg 39kg NTSC,PAL,SECAM,PAL-M/N,NTSC4.43 1 INPUT ( 75 , 1Vp-p ) 50/60Hz, Super Jack 1 Input( 75 ,1Vp-p )
3-2. Y/C INPUT SIGNAL 3-3. DTV/DVD INPUT SIGNAL
Y,Pb/Cb,Pr/Cr 1 Input ( 75 ,1Vp-p ) * DTV Resolution Mode ( Y, Pb, Pr ) : 1920X1080i, 1280X720p, 640X480p * DVD ( Y,Cb,Cr ) : 50/60Hz R,G,B,H,V 15Pin D-sub jack 1 Input ( 75 ,1Vp-p ) * Resolution Mode : VGA - UXGA
3-4. PC SIGNAL
3-5. SOUND INPUT SINAL
Composite, Y/C : L/R Phone Jack 1Pair DTV/DVD : L/R Phone Jack 1Pair PC : L/R Phone Jack 1Pair * Input Impedance 47
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Service manual SP-110
ITEM
3-6. Optical Chracteristics 1) Display Resolution 2) Peak Luminance 3) Contrast Ratio 4) Color Temperature 3-7. Scaling
SPECIFICATION
16:9 Wide 853 X 480 160cd/ m2 500:1 8000o K PC, DTV : Fill to Aspect Ratio, Fill to Screen DVD, VIDEO : Normal, Wide, Panaroma, Letter Box, Letter Box with Sub Title PC,DTV (User Control) : H-Size, V-Size H-Position, V-Position + Zoom , 4Direction Paning Avaiable Video Window in DTV/PC Picture PIP Size, Position Changeable 8Language KOREAN,ENGLISH,NETHERLAND, FRENCH,SPANISH,GERMAN, PORTUGUESE,ITALIAN AC 90V-264V, 50/60Hz 350 WATTS L : 8Watts, R : 8Watts Option Option Freeze Picture, Video Rotation
REMARK
3-8. Zoom 3-9. PIP 3-10.OSD
3-11. AC Power 3-12. Power Consumption 3-13. Sound Output 3-14. LAN Interface 3-15. Settop Box Interface 3-16. Others 4. USER CONTROL & ACCESSORIES 4-1.CONTROL 1) SET 2) REMOCON TRANSMITTER
4-2. ACCESSORIES
AC POWER, MENU, INPUT SELECT, UP, DOWN, LEFT, RIGHT INPUT SELECT,POWER,RECALL, ZOOM-, ZOOM+,MENU,UP,DOWN,LEFT,RIGHT, PICTURE MODE,FREEZE,SCREEN MODE, MUTE 1) REMOCON : R-V2A, R-V2AK 2) BATTERY : "AAA" 2EA 3) INSTRUCTION MANUAL 4) STAND (OPTION) 5) WALL HANGER (OPTION) 6) SPEAKER UNIT 2ASS'Y (OPTION)
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Service manual SP-110
3. BLOCK DIAGRAM
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Service manual SP-110
4. Adjustment
4-1. How to confirm the origianl data of VIDEO PCB (1) Input selection : You select video mode (2) You confirm the original data of user control - Brightness : 36 ( :20 in case of DTV/PC input mode ) - Contrast : 60 - Sharpness : 2 - Colour : 32 - Tint : 0 ( Center ) (3) You confirm the original data of SERVICE MODE (PW364) ( See 4-4 ) - Sub-Brightness : 60 - Sub-Contrast : 70 - R-Bias : 63 - G-Bias : 63 - B-Bias : 68 - R-Gain : 53 - G-Gain : 57 - B-Gain : 76 4-2. How to adjust POWER PCB (1) Devices for measurement : Digital volt meter, Pattern generator (2) Conditions : You adjust as follows after assembling set and inputting WHITE PATTERN. 1) VSUS(Sustain voltage) : Voltage sustaining electronic discharge TP : P12 Adjustment control : RV600 Standard voltage : 166V 2) VSCAN(Scan voltage) : Scan voltage when recording DATA TP : PA9 #6 PIN of Y PCB Adjustment control : RV14 Standard voltage : -160V 3) VADD(ADDRESS voltage) : Voltage recording DATA TP : P14 Adjustment control : VRS1 Standard voltage : 80V 4-3. X/Y PCB adjustment (1) Devices for measurement : Digital volt meter, Pattern generator (2) Previous adjustment voltage : You adjust as follows after assembling set and inputting BLUE PATTERN.
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Service manual SP-110
1) VSHELF(SHELF voltage) : X-electrode sustain voltage when recording DATA TP : RCU25 Adjustment control : RU5 Standard voltage : +60V 2) VVH(SCAN VH voltage) : VH voltage of SCAN IC when scanning TP : RY7 voltage each side Adjustment control : RY6 Standard voltage : -70V (3) The final operation adjustment 1) Input a monochrome pattern of R,G,B. And then you check if there are abnormal OFF-state pixels (which must be in ON-state but are in OFF-state). If any, increase VSUS voltage slowly from 166V to remove abnormal OFF state pixels in that pattern. 2) If there is no abnormal OFF-state pixel in monochrome pattern of R,G,B, make sure if there is abnormal OFF-state in Magenta, Cyan, Yellow or not. If any, increase VSUS slowly in that pattern. 3) Increase VSUS, which is set as above, by 1V. 4) Make sure if there are abnormal ON-state pixels(which must be on OFF-state but are in ONstate, for example, R or G) in Blue pattern after aging Blue pattern 5 minutes. If any, set VSCAN slowly from - 160V to - 150V and decrease VSHELF slowly to remove wrong electronic discharge. 4-4. White balance adjustment (1) Feed grey scale signal to video input terminal. (2) Confirm the original data of user control (See 4-1). (3) Press Remote controller in order starting with UP => MUTE => RECALL => MUTE BUTTON to access Service adjustment mode and select PW364. And then confirm the original data of the Service mode PW364 register. (See 4-1). (4) Make sure you can't recognize any grey scale errors in the form of colour tint in this darker bands. (5) You attach the sensor of a White balance meter to the white part on the upper end of this grey scale pattern. (6) Set White balance changing R,G,B-Gain. · You make sure that R,G,B-Gain must be set within the limit of 63 20. If it is over the limit, it is N.G. · How to adjust temperature of colour X = 0.290 0.01, Y = 0.310 0.01 Temperature of colour : 8,300o K (7) You can set Luminance level changing Sub-contrast. · If the set data of Sub-contrast is over the limit of 80, it is N.G. (8) Press Menu button, to escape from Service mode.
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Service manual SP-110
5. When fitting a new board
5-1. Video (1) Check the related adjustments are correctly set as per previous page. 5-2. X-Sustain (1) Set the VSHELF voltage according to the list of adjustments. (2) The data of adjustment voltage is on the label, which is attached on the metal part under Y-Sustain board. 5-3. Y-Sustain (1) Set the Vvh voltage according to the list of adjustments. (2) The data of adjustment voltage is on label, which is attached on the metal part under Y-Sustain board. 5-4. Power module (1) You set each voltage according to the list of adjustments. (2) The data of adjustment voltage is on the label, which is attached on the metal part under Y-Sustain board.
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Service manual SP-110
6. Trouble shooting
6-1. Audio/video 6-2. Digital 6-3. X-SUSTAIN 6-4. Y-SUSTAIN 6-5. SCAN Board 6-6. DATA H/L, Connection(LU,CU,RU,LD,CD,RD) 6-7. Power
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Service manual SP-110
6-1. Audio/Video
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Service manual SP-110
* IMAGE PROCESSOR PART BLOCK DIAGRAM
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Service manual SP-110
NO Video screen ( Composite input )
Check start N Does the `Please check input signal or press "input" key.' message appear? Y Is the signal input jack correctly connected? Y N Does the input source operate? Y Is input selection in Video mode? Y Does the `DTV, PC' screen N appear after inputting signal to DTV or PC jack? Y Can you see input to P502 No.43 V1 of Video PCB? Y Can you see input to TP Y0, V0? Y N 1. Video S/W and 3D COMB filter (IC402) are N.G 2. Change video PCB N Confirm input selection Operate A/V device, Which is used. N 1.Make sure of connection of Jack(PDP Monitor & A/V device) Is there a weak electronic discharge on the screen? Y N is PA603 properly connected? Y is DVS,DHS,DCLK N Video PCB is N.G of Video PCB P603 Change PCB being outputted? Y 1.Confirm other PCBs Video PCB than 2.Change PA603 Confirm Video to digital Connector PA603 N 1.Confirm AC connection 2.Confirm Power S/W on 3.Inspect Digital and X,Y
1. Video signal processing is N.G 2. Change video PCB N 1. Inspect jack PCB 2. Inspect input jack
N Can you output Sync of TP V2 : 60Hz/ 1. Confirm if IC400 and IC401 50Hz H2 : 31.5KHz/KHz? are N.G 2. Change video PCB Y
1. Video signal processing is N.G 2. Change Video PCB
CAUTION : 1.You must only remove PA603 after confirming that you switch off the power. 2. You must thoroughly understand instruction manual before removing Back cover.
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Service manual SP-110
NO DTV screen (1080I, 720P, 480P)
Check start N Does the `Please check input signal or press "input" key.' message appear? Y Is the signal input jack correctly connected? Y N Does the input source operate? Y Operate A/V device, Which is used. N N 1.Make sure of connection of Jack(PDP Monitor & A/V device) N Is there a weak electronic discharge on the screen? Y N is PA603 properly connected? Y is DVS,DHS,DCLK N Video PCB is N.G of Video PCB P603 Change PCB being output? Y 1.Confirm other PCBs than Video PCBs 2.Change PA603 1.Confirm AC connection 2.Confirm Power S/W on 3.Inspect Digital and X,Y Confirm Video to digital Connector PA603
Is input selection in DTV/DVD mode? Confirm Y input selection Does the `Video' screen N appear after inputting signal 1. DTV signal processing is N.G to Video jack? 2. Change video PCB Y Can you see input to P502 No.10 YD1 of Video jack? Y Can you output DTV signal in TP R,G,B? Y N Can you output Sync of TP V1:Hz/ H1 : KHz/ Hz? Y N N 1. Inspect jack PCB 2. Inspect input jack
1. DTV S/W and DTV processor(IC505) circuit are N.G 2. DTV H/V Sync processing part is N.G 3. Change video PCB 1. DTV S/W and DTV processor (IC505) circiuit are N.G 2. Change video PCB
1. Video signal processing is N.G 2. AD Converter(IC500) is N.G 3. Change Video PCB
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Service manual SP-110
NO PC screen
Check start N Does the `Please check input signal or press "input" key.' message appear? Y Is the signal input jack correctly connected? Y N Does the input source operate? Y N Is input selection in PC mode? Y Does the `Video' screen appear after inputting signal to Video jack? Y N Can you see input to P502 No.9,8,31,32,33 R,G,B,Hsync,Vsync of Video PCB? Y N Can you output PC signal in TP R,G,B? Y N Can you output Sync of TP V1 : Hz/ H1 : KHz/ Hz? Y 1. PC S/W is N.G 2.Change video PCB 1. PC S/W and DTV processor(IC505) are N.G 2. PC H/V Sync processing part is N.G 3. Change video PCB 1. Inspect jack PCB 2. Inspect input jack N 1. PC signal processing is N.G 2. Change video PCB Confirm input selection Operate A/V device, Which is used. N 1.Make sure of connection of Jack(PDP Monitor & PC) Is there a weak electronic discharge on the screen? Y N is PA603 properly connected? Y Does DVS,DHS,DCLK N of Video PCB P603 being output? Y Video PCB is N.G Change PCB Confirm Video to digital Connector PA603 N 1.Confirm AC connection 2.Confirm Power S/W on 3.Inspect Digital and X,Y
1.Confirm other PCBs than Video PCB 2.Change PA603
1. PC signal processing is N.G 2. A/D Converter is N.G 3. Change Video PCB
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Service manual SP-110
NO Sound
Check start Does the screen appear? N 1. Confirm AC connection 2. Confirm power S/W on 3. Inspect video PCB and other blocks
Y N
is the sound signal input jack correctly connected? Y
1.Make sure of connection of jack(PDP monitor & A/V device)
N is the speaker properly connected? Y N Is sound signal output from P502? Y 1. Jack PCB is N.G 2. Video connection to jack PCB is N.G Connect speaker See: Siganl composition of P502 sound 1. RSPC, LSPC => PC sound 2. RSD1, LSD1 => DTV/DVD sound 3. RSV1, LSV1 => VIDEO, S-VHS sound
is sound signal on P400 No.2,3 of audio PCB? Y
N
1. Sound S/W is N.G 2. Confirm IC404 3. Change video PCB 1. PA400 connector is N.G 2. Change audio PCB
is sound signal on PA400 No.2,4 N of audio PCB? Y is sound AMP on PA300 No.1,4 of audio PCB processing an output? Y Does sound AMP on PA300 No.1,4 and JP659 of audio PCB produce an output? Y 1. Speaker or sound cable is N.G 2. Change speaker or sound cable N
Is power fed to PA3 of audio PCB? Y N
N
1. Confirm if PA3 connector is N.G 2. Change power board
1. PA300 is N.G (Change audio PCB) or JP659 is N.G (Change jack PCB)
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Service manual SP-110
NO Remote Controller operation
Check start
N Is red LED next to POWER S/W on?
1. Confirm AC connection 2. Confirm power S/W on 3. Inspect video PCB, LED PCB and other blocks
Y
Does Remote Controller operate? Y
N
1. Confirm Remote Controller operation and battery
Is screen on with key input?
N
1. Connection with video PCB is N.G or video PCB N.G 2. Inspect video PCB and other blocks
Y Is there waveform when pressing remocon in IR NO.2 of P602 N 1. LED PCB is N.G 2. Change LED PCB
1. IR receipt block of video PCB is N.G 2. Inspect video PCB and other PCBs
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Service manual SP-110
NO Key operation
Check start
N Is red LED on next to POWER S/W on?
1. Confirm AC connection 2. Confirm power S/W on 3. Inspect video PCB, LED PCB and other blocks
Y
Does power come on with remocon? Y
N
1. Connection with video PCB is N.G or Video PCB is N.G 2. Inspect video PCB and other blocks
Is connection between PA601 of key PCB and video PCB good? Y 1. Inspect video PCB and other PCBs
N
1. PA601 connector is N.G 2. Change key PCB
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Service manual SP-110
6-2. DIGITAL Checking Order for normal operation of Digital Board and Check Points ( * Measure RMS voltage with a multi-meter, refer to the attached picture for position of check points ) 1. After make sure that the set turns off, turn off the High Voltage ON/OFF Switch of the Power Board and then turn on the set 2. Confirm whether there is an input of 5V, 3.3V into Power Connector ( PA5 ). - 5V input (pin No.1,2) : If 4.5V ~ 5.2V, O.K. - 3.3V input (pin No.7,8) : If 3.0V ~ 3.5V, O.K. 3. Confirm whether Power 2.5V, 3.3V_1, 3.3V_2, 3V_3, 5V_1, 5V_2 - 2.5V : If 2.2V ~ 2.7V, O.K. - 3.3V : If 3.0V ~ 3.5V, O.K. - 5V : If 4.5V ~ 5.2V, O,K. 4. Confirm Reset and V_MUTE - Reset : If 3.0V ~ 3.5V, O.K. - V_MUTE :If 3.0V ~ 3.5V, O.K. 5. Confirm CONF_DONE ( ID102, ID103 ) - CONF_DONE : If 3.0V ~ 3.5V, O.K.
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Service manual SP-110
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Service manual SP-110
6-3. X-SUSTAIN BOARD 1. Separate PA7 and PA114 connector 2. Check the remaining electrical voltage of PA7 (1) Check the Voltage of Terminal 170V : If maintained beyond 10 volt, discharge (below 5 volt) with resistance of beyond 1K ohm 5 Watt 3. Confirm the value of series and parallel resistance of RU10//RU13-RU11//RU14-RU12//RU15 (1) Each value of resistance : 6.8 ohm 5 Watt (2) The total value of resistance : 10.2 +/- 0.5 ohm (3) In case of wrong value of resistance, replace (open) board and confirm each connector : the state of insertion ( installation ) 4. In case of normal value of resistance, measure the value as following table1. (1) Use a Diode Tester (2) If abnormal part is found, replace the board (3) In case of normal state, Inspect connectors and other boards
Table 1. PA7 The value of Diode Tester of each terminal * + : red, - : black NAME 1 170V GND 15V GND DIODE TESTER + + + MEASURE About 5 sec. Later, Open About 3 sec. Later, Open beyond 2V Beyond 1.43 DIODE TESTER + + + MEASURE 0.49
2
0.47
3 CU1(5V) GND
0.48
Table 2. PA114 The value of Diode Tester of each terminal * + : red, - : black The configuration of terminal ( top view, components side )
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Service manual SP-110
DIODE TESTER + GND A B C D E F G H MEASURE 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 DIODE TESTER + GND A B C D E F G H MEASURE 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5
Table 3. The value of Diode Tester of each Semiconductor * + : red, - : black
NAME 1 QU5/QU6 D S D S D S D S D S D S D S D S D S D S D S DIODE TESTER + + + + + + + + + + + MEASURE ABOUT 5 SEC. LATER, OPEN Open Open Open Open Open Open Beyond 2.3 ABOUT 5 SEC.LATER, OPEN Open Open DIODE TESTER + + + + + + + + + + + MEASURE 0.48
2 3 4 5 6 7 8 9
QU7/QU8 QU17/QU18 QU15/QU16 QU23~QU26 QU19~QU22 QU12 QU11 QU9
0.48 0.45 0.45 0.4 0.4 0.49 0.49 0.5
10 11
QU4 QU13/QU14
0.5 0.48
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Service manual SP-110
6-3. Y-SUSTAIN BOARD 1. Separate PA9, PA111 connector 2. Confirm the remaining electrical Voltage of PA9 (1) Confirm the Voltage of Terminal 170V : If maintained beyond 10 volt, discharge(below 5 volt) with resistance of beyond 1K ohm 5 Watt (2) Confirm the Voltage of Terminal -155V : If maintained beyond -10 volt, discharge(below -5 volt) with resistance of beyond 1K ohm 5Watt 3. Confirm the resistance of RY2 ( 470 ohm 5Watt ) (1) In case of wrong value, replace board and confirm each connector 4. In case of normal value of resistance, measure the value as following Table 1. (1) Use a Diode Tester (2) If abnormal part is found, replace the board (3) In case of normal state, Inspect connectors and other boards Table 1. PA9 The value of Diode Tester of each terminal * + : red, - : black NAME 1 170V GND 2 -155V GND 3 ON/OFF GND 4 15V GND DIODE TESTER + + + + MEASURE About 3 Sec. Later, Open Beyond 0.7 Open Beyon 0.7 DIODE TESTER + + + + MEASURE Beyond 0.8 Open Beyond 2.4 About 5 Sec. Later, beyond 0.4
Table 2. PA111 The value of Diode Tester of each terminal * + : red, -: black The configuration of terminal (top view, components side)
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Service manual SP-110
DIODE TESTER + GND A B C D E F G H I J K L M P MEASURE 1.2 0.6 0.6 0.6 1.2 1.2 0.6 0.6 0.6 0.6 1.2 0.6 0.6 1.2 DIODE TESTER + GND A B C D E F G H I J K L M P MEASURE 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5
Table 3. The value of Diode Tester of each Semiconductor * + : red, - : black
NAME 1 QY5~QY8 D S D S D S D S D S D S D S D S D S D S D S DIODE TEST + + + + + + + + + + + MEASURE ABOUT 3 SEC. LATER, OPEN Open Open Open Open Open Open Open Open Beyond 1 Open DIODE TEST + + + + + + + + + + + MEASURE 0.4
2 3 4 5 6 7 8 9 10 11
QY9~QY12 QY1~QY2 QY3~QY4 QY25~QY28 QY20~QY23 QY15~QY16 QY19 QY14 QY13 QY2
0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 Open 0.4
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Service manual SP-110
6-5. SCAN BOARD 1. Confirm the DIOED TESTER, PCB separately 2. The configuration (1) The Voltage Terminal of Scan (top view, components side)
A B
DIODE TESTER + -
MEASURE Beyond 0.6
DIODE TESTER +
MEASURE Open
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Service manual SP-110
6-6. DATA H/L, CONNECTION(RU,CU,LU,RD,CD,LD) 1. Confirm the upper part and the lower part (1) Separate PA10 and PA11 (2) Confirm DIODE TESTER 2. Separate P112 (1) Confirm LU and two DATA H boards 3. Separate PA113 (1) Confirm CU and DATA H board (2) Confirm RU and two DATA H boards 4. Separate P115 (1) Confirm LD and two DATA L boards 5. Separate P116 (1) Confirm CD and DATA L board (2) Confirm RD and two DATA L boards Table 1. The value of Diode Tester of each terminal * + : red, - : black
1 2 NAME Vadd GND 5V GND DIODE TESTER + + MEASURE Open Beyond 1.3 DIODE TESTER + + MEASURE 0.6 0.5
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Service manual SP-110
6-7. POWER CHECK
NO
When the set is switched on, the power LED turns red?
YES
NO
1. Check Fuse F1 open 2. Check RC 1(Bridge Diode) open/short
NO
When remote controller is switched on, LED turns green?
Is 7PIN of CONNECTOR P2 0 V?
YES
Check VIDEO PCB?
Check R20, R21, R22 open Push the SW1 (Slide switch) of POWER MODULE in the opposite direction of Then, check LOW B+. Is each voltage (30V, 12V, 5V) of CONNECTOR P3 correct?
YES
NO
After P3 CONNECTOR is separated, is each voltage (30V, 12V, 5V) correct?
YES
NO
Check Audio AMP PCB After P5 CONNECTOR is separated, is each voltage (5V, 3.3V) correct?
YES YES NO
Is each voltage(5V, 3.3V) of CONNECTOR P5 correct?
NO
Check Digital PCB
Is 1 pin voltage of CONNECTOR P7 and P9 correct at 15V?
NO
After P7 CONNCETOR is Separated, 15V present?
NO
YES
Check X-sus PCB
YES
After P9 CONNCETOR is Separated, 15V present?
NO
YES
Check Y-sus PCB
Is 1 pin voltage of CONNECTOR P10 and P11 correct at 15V?
NO
After P10 CONNCETOR is Separated, 15V present?
YES
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Service manual SP-110
NO
YES
YES
Check After P11 CONNECTOR is YES CONNESeparated, is 15V CTION produced? PCB
Replace Power Module Push the SW1(Slide Switch) POWER Module in the direction of Then, check High Voltage And turn on the Power, Can Vsus(170V) be produced?
NO
Without Connector P7 Can Vsus(170V) be producde?
NO
YES
Check X-sus PCB
Without Connector P9 Can Vsus(170V) be produced?
YES Is the
Voltage Of Conncetor P7,5PIN 0V?
YES NO
YES
NO
Check Y-sus PCB Turn on the POWER. Can Vadd(70V) be produced?
NO YES
Without Connector P10 Can Vadd(70V) be produced?
NO
Check Y-sus PCB
YES
Without Connector P11 Can Vadd(70V) be produced?
NO NO YES
Turn on the POWER. Can Vscan(-155V) be produced?
YES
Without Connector P9 Can Vscan(-155V) be produced?
YES
Check Y-sus PCB
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Service manual SP-110
NO
END Replace POWER Module
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Service manual SP-110
7. Assembly List
NO PCB ASS'Y NAME
WORKING PROCESS ASS'Y NAME
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 41 42 43 44 45
ACCESSORY AS PACKING AS CABINET AS MASK FRONT AS VIDEO PCB AS PCB VIDEO MANUAL A PCB VIDEO CHIP B AS PCB VIDEO CHIP A AS DIGITAL PCB AS PCB DIGITAL MANUAL PCB DIITAL CHIP B PCB DIGITAL CHIP A A PCB DATA H AS PCB DATA H CHIP A A PCB DATA L MANUAL PCB DATA L CHIP A A SCAN PCB AS PCB SCAN MANUAL A PCB SCAN CHIP A AS X-SUS PCB AS PCB X-SUS MANUAL A PCB X-SUS RHU AS PCB X-SUS M-10 AS PCB X-SUS RADIAL AS PCB X-SUS CHIP A AS Y-SUS PCB AS PCB Y-SUS MANUAL A PCB Y-SUS RHU AS PCB Y-SUS M-10 AS PCB Y-SUS RADIAL AS PCB Y-SUS CHIP A AS AUDIO PCB AS PCB AUDIO MANUAL A PCB AUDIO RADIAL AS PCB AUDIO AXIAL AS JACK PCB AS PCB JACK MANUAL AS XSA PCB AS PCB XSA MANUAL AS CONN UNION PCB AS PCB UNION CHIP A AS PCB UNION AS PCB RIGHT-DO MANU PCB RIGHT-DO A AS
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ASSEMBLY CODE PEACPWD011 PEPKCPD011 PECACAD011 PEFMSJD011 PEVDMSD011 PEVDJ2D011 PEVDJ1D011 PEDGMSD011 PEDGJ2D011 PEDGJ1D011 PED1MSD011 PED1J1D011 PED2MSD011 PED2J1D011 PES1MSD011 PES1J1D011 PEXSMSD011 PEXSJ0D011 PEXSJBD011 PEXSJRD011 PEXSJ1D011 PEYSMSD011 PEYSJ0D011 PEYSJBD011 PEYSJRD011 PEYSJ1D011 PEAUMSD011 PEAUJRD011 PEAUJAD011 PEJAMSD011 PEXAMSD011 PEUNJ1D011 PEUNSWD011 PERWMSD011 PERWJ1D011
DATA_H PCB AS DATA_L PCB AS
Service manual SP-110
8. Block Diagram 8-1. VIDEO / AUDIO
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Service manual SP-110
8-2. Digital
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Service manual SP-110
8-3. Y-Sustain Y-Sustain Block Diagram
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Service manual SP-110
8-4. X-Sustain X-Sustain Block Diagram
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686, AHYEON-DONG MAPO-GU SEOUL, KOREA C.P.O. BOX 8003 SEOUL, KOREA TELEX : DWELEC K28177-8 CABLE : "DAEWOOELEC" E-mail :[email protected] TEL : 82-2-360-7806 FAX : 82-2-360-7877
DSP-4210GM Data-board change procedure
Daewoo Electronics
Step 1. Un-screw the following locations.
This is backside of PDP. The circled locations are where the screws in order to take off the back panel.
Step 2 Inside look of PDP
This is inside look of PDP. The upper data board is different from bottom. Upper: "Data High", Lower: "Data Low". You can read these on the board.
Step 3
Step 4 Testing. Find out the exact location of the line by pictures.
Connect any video source and display. This is normal picture.
Step 5 Testing. Unhook the data connector.
Find out exact location of the line and unhook the connector right above that position.
Step 6 Picture of opened hook.
Step 7 Take out the connect strip.
Step 8 Exam the picture.
You will see some thin dead lines vertically.
Step 9 Close look of the picture
If you still see the problem line in between these dead lines, then you have to change the "Data Low (Lower)" board. If you cannot see the problem line between these dead lines, you have to change the "Data High (Upper)" board.
Step 10 Changing Data High. Unhook all the connectors.
Step 11 Unscrew
Step 12 Pull the data board and replace with new one.
Step 13 Slide in the new board
Step 14 1. Push in the connector 2. Push down the clip.
**** Caution **** At the tip of the connector, there is a little hook. So lift a little and push in all the way, and then clip down.
Step 15 Screw in.
Step 16 Same technic is applied if you have to change the "Data Low (Lower)"
Step 17 Put back the back cover.
Please send back the Defected parts to the following address. Daewoo Electronics DTV Service. 120 Chubb Ave. Lyndhurst, NJ 07071 If you have any question? Call 1-800-Daewoo-8 (1-800-323-9668) or, Email: [email protected]
How To Access Service Mode for Screen Control
1. 2. Turn on the PDP. Set up the PDP and a picture source. E.g. PDP and DVD are connected with component or composite connection. 3. Play any DVD and select a picture scene and pause it. When you select a picture scene, try to find a scene has bright (light source) spot and dark (shadow) spot in the same picture. (e.g. A little dark room with bright light comes through a window.) 4. Go into the "service menu" mode using your remote control. (Press following order on your remote: Up -> Mute -> Recall -> Mute) 5. You will see the Following option on the center of the screen. CXA2101AQ VPC3230D PW364 MSP3405P PICTURE Test Pattern Factory 6. 7. 8. Highlight the option "PW364" by pressing "down" arrow. Select the option by pressing "right" arrow. You will see the following option. S Brt S Cont R Bias G Bias B Bias R Gain G Gain B Gain 9. "S Brt" is the Brightness and "S Cont" is the Contras.
10. Write down all the values on that screen and use this as a reference. 11. Highlight S Brt. 12. Change its value to "0" by press left arrow. 13. Highlight S Cont. 14. Change its value to "0" by press left arrow. (You will see almost nothing)
15. Increase "S Cont " value using "Right" arrow until you see the bright spot of the picture. You still don' see the dark (shadow) spot of the screen but it is ok. t 16. Highlight "S Brt" by pressing "up" arrow once. 17. Increase its value using "right" arrow until you see the dark (shadow) spot of the screen. 18. Exit the service menu by pressing "Exit" button twice. 19. Turn off the PDP and Turn on again. 20. Enjoy your PDP.
DSP-4210GM Horizontal Data-board change procedure
Daewoo Electronics
Step 1. Un-screw the following locations.
This is backside of PDP. The circled locations are where the screws in order to take off the back panel.
Step 2 Inside look of PDP
Step 3 Horizontal Data board (Showing bottom one for example)
Step 4 Pull out the 2 connectors.
Step 5 Unscrew 2 positions
Step 6 Slide and disconnect the board from main unit.
Step 7 Slide in the new board.
Step 8 Screw in the 2 screws in the position
Step 9 Put in the data connector.
Step 10 Cover the back panel and screw in those positions.
Step 11 Please send back to us the unused and defected part. Please mark which one is unused and defected. Address: Daewoo Electronics Research Center 120 Chubb Ave. Lyndhurst, NJ 07071 Phone Number 201-964-9349
DSP-4210GM Data board change procedure
(When multiple thin lines occur in-group)
Daewoo Electronics
Step 1. Un-screw the following locations.
This is backside of PDP. The circled locations are where the screws in order to take off the back panel.
Step 2 Look for the position of the lines occur.
Close Look
If the lines occur in the middle of screen, disassemble the connecter part. Step 3. Unscrew those positions.
Step 4 Take out the wires and the connector.
Step 5. Slide out the input connector consol.
** Note ** Input connecting consol is still connected with power cable. Therefore, Do not pull the consol to get completely separate from the main unit.
Step 6. Picture after input connecting consol is detached.
Step 7. Check if any connection is loosed.
Close Look
If there is no connector that is loosed, change data-board. Step 7. Change Data-board. See Data-board Change procedure.
Step 8. Changing Data-board controller. (Step 8 ~ Step ??) Location of Data-board Controller
DSP-4210GM Video board change procedure (Analog/Digital)
Daewoo Electronics
Step 1. Un-screw the following locations.
This is backside of PDP. The circled locations are where the screws in order to take off the back panel.
Step 2 Video Board. Analog video board (top), Digital video board (bottom).
Step 3
Step 10 Cover the back panel and screw in those positions.
Step 11 Please send back to us the unused and defected part.
Please mark which one is unused and defected. Address: Daewoo Electronics Research Center 120 Chubb Ave. Lyndhurst, NJ 07071 Phone Number 201-964-9349