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Daewoo DSP-4210GM Service Manual

Chassis : sp-110
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S/M No. : TSP110AEF0

Service Manual

Model : DSP-4210GM
CHASSIS : SP-110
DAEWOO ELECTRONICS CO., LTD

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Summary of Contents for Daewoo DSP-4210GM

  • Page 1: Service Manual

    S/M No. : TSP110AEF0 Service Manual Model : DSP-4210GM CHASSIS : SP-110 DAEWOO ELECTRONICS CO., LTD...

  • Page 2: Table Of Contents

    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.

  • Page 3: Safety Precautions

    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.
  • Page 4 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 termin- als, speaker out, etc.) Measuring method:(Power ON) lnsert load Z between B(earth ground, power cord plug prongs) and exposed accessible parts.

  • Page 5: Product Specification

    Service manual SP-110 2. PRODUCT SPECIFICATION [ DSP-4210GM ] ITEM SPECIFICATION REMARK 1. GENERAL 1-1. MODEL NO DSP-4210GM 1-2. CHASSIS NO SP-110 1-3. SCREEN SIZE 42” (16:9) 1-4. COUNTRY WORLD WIDE 1-5. RESOLUTION 853(W) X 480(H) 1-6. REMOCON TRANSMITTER TYPE R-V2A(ENGLISH), R-V2AK(KOREAN) 1-7.
  • Page 6 Service manual SP-110 ITEM SPECIFICATION REMARK 3-6. Optical Chracteristics 1) Display Resolution 16:9 Wide 853 X 480 2) Peak Luminance 160cd/ m 3) Contrast Ratio 500:1 4) Color Temperature 8000 3-7. Scaling <Scaling Mode> PC, DTV : Fill to Aspect Ratio, Fill to Screen DVD, VIDEO : Normal, Wide, Panaroma, Letter Box, Letter Box with Sub Title...

  • Page 7: Block Diagram

    3. BLOCK DIAGRAM...

  • Page 8: Adjustment (How To Use Service Remote Controller)

    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...
  • Page 9 Service manual SP-110 1) V (SHELF voltage) : X-electrode sustain voltage when recording DATA SHELF TP : RCU25 Adjustment control : RU5 Standard voltage : +60V 2) V (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...

  • Page 10: When Changing The New Board

    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 V voltage according to the list of adjustments. SHELF (2) The data of adjustment voltage is on the label, which is attached on the metal part under Y-Sustain board.

  • Page 11: Trouble Shooting

    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 - 10 -...
  • Page 12 6-1. Audio/Video...
  • Page 13 * IMAGE PROCESSOR PART BLOCK DIAGRAM...
  • Page 14 Service manual SP-110 NO Video screen ( Composite input ) Check start Does the ‘Please check input Is there a weak electronic 1.Confirm AC connection signal or press “input” key.’ discharge on the screen? 2.Confirm Power S/W on message appear? 3.Inspect Digital and X,Y 1.Make sure of is PA603 properly...
  • Page 15 Service manual SP-110 NO DTV screen (1080I, 720P, 480P) Check start Does the ‘Please check input Is there a weak electronic 1.Confirm AC connection signal or press “input” key.’ discharge on the screen? 2.Confirm Power S/W on message appear? 3.Inspect Digital and X,Y 1.Make sure of is PA603 properly Confirm Video to digital...
  • Page 16 Service manual SP-110 NO PC screen Check start Does the ‘Please check input Is there a weak electronic 1.Confirm AC connection signal or press “input” key.’ discharge on the screen? 2.Confirm Power S/W on message appear? 3.Inspect Digital and X,Y 1.Make sure of is PA603 properly Confirm Video to digital...

  • Page 17: No Sound

    Service manual SP-110 NO Sound Check start 1. Confirm AC connection Does the screen appear? 2. Confirm power S/W on 3. Inspect video PCB and other blocks 1.Make sure of connection of jack(PDP monitor & A/V device) is the sound signal input jack correctly connected? Connect speaker is the speaker properly connected?
  • Page 18 Service manual SP-110 NO Remote Controller operation Check start 1. Confirm AC connection Is red LED next to POWER S/W 2. Confirm power S/W on 3. Inspect video PCB, LED PCB and other blocks Does Remote Controller operate? 1. Confirm Remote Controller operation and battery 1.
  • Page 19 Service manual SP-110 NO Key operation Check start 1. Confirm AC connection Is red LED on next to POWER S/W 2. Confirm power S/W on 3. Inspect video PCB, LED PCB and other blocks Does power come on with 1. Connection with video PCB is N.G or remocon? Video PCB is N.G 2.
  • Page 20 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.
  • Page 22 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.
  • Page 23 Service manual SP-110 DIODE TESTER MEASURE DIODE TESTER MEASURE Table 3. The value of Diode Tester of each Semiconductor * + : red, - : black NAME DIODE MEASURE DIODE MEASURE TESTER TESTER QU5/QU6 ABOUT 5 0.48 SEC. LATER, OPEN QU7/QU8 Open 0.48...
  • Page 24 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.
  • Page 25 Service manual SP-110 DIODE TESTER MEASURE DIODE TESTER MEASURE Table 3. The value of Diode Tester of each Semiconductor * + : red, - : black NAME DIODE MEASURE DIODE MEASURE TEST TEST QY5~QY8 ABOUT 3 SEC. LATER, OPEN QY9~QY12 Open QY1~QY2 Open...
  • Page 26 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) DIODE TESTER MEASURE DIODE TESTER MEASURE Beyond 0.6 Open - 25 -...
  • Page 27 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.
  • Page 28 Service manual SP-110 6-7. POWER CHECK When the set is switched on, the power LED turns red? 1. Check Fuse F1 open 2. Check RC 1(Bridge Diode) open/short When remote controller is switched on, LED turns green? Is 7PIN of CONNECTOR P2 Check 0 V? VIDEO...
  • Page 29 Service manual SP-110 Check After P11 CONNECTOR is CONNE- Separated, is 15V CTION produced? Replace Power Module Push the SW1(Slide Switch) POWER Module Without Connector P7 Check in the direction of Can Vsus(170V) be X-sus PCB Then, check High Voltage producde? And turn on the Power, Can Vsus(170V) be produced?
  • Page 30 Service manual SP-110 E N D Replace POWER Module - 29 -...

  • Page 31: Assembly List

    Service manual SP-110 7. Assembly List WORKING PROCESS ASSEMBLY PCB ASS’Y NAME ASS’Y NAME CODE ACCESSORY AS PEACPWD011 PACKING AS PEPKCPD011 CABINET AS PECACAD011 MASK FRONT AS PEFMSJD011 VIDEO PCB AS PCB VIDEO MANUAL A PEVDMSD011 PCB VIDEO CHIP B AS PEVDJ2D011 PCB VIDEO CHIP A AS PEVDJ1D011...

  • Page 32: Circuit Diagram

    8. Block Diagram 8-1. VIDEO / AUDIO...
  • Page 33 8-2. Digital...
  • Page 34 8-3. Y-Sustain Y-Sustain Block Diagram...
  • Page 35 8-4. X-Sustain X-Sustain Block Diagram...

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