Daewoo DLP-26C2 Service Manual Download Page 1

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Caution

: In this Manual, some parts can be changed for improving. their
performance without notice in the parts list. So, if you need the
latest parts information, please refer to PPL(Parts Price List)in
Service Information Center.

Service Manual

LCD TV

CHASSIS :

Model :

S/M NO. : DSL223PEF0

SL-223P

DLP-26C2
DLP-26C3
DLP-32C1
DLP-32C2
DLP-32C3
DLP-37C3
DLP-42C1

OCT. 2006

Summary of Contents for DLP-26C2

Page 1: ...e without notice in the parts list So if you need the latest parts information please refer to PPL Parts Price List in Service Information Center Service Manual LCD TV CHASSIS Model S M NO DSL223PEF0...

Page 2: ...rocessing KEY and LED 17 4 3 POWER PCB 22 5 SERVICE MODE 25 5 1 Check initial Menu Data 25 5 2 Entering SERVICE MODE 26 6 WHITE BALANCE Adjusting Method 29 7 Main PCBs Trouble Diagnosis 30 7 1 MAIN PC...

Page 3: ...e screw Sort out the screws and store them separately Because screws holding PCB are working as electric circuit GROUNDING make sure to check if any screw is missing when assembling 5 A LCD Set contai...

Page 4: ...AM 2 Carrer NICAM Channel Memory 99ch Auto Preset 99ch Auto Preset Input Connector RF 75 Ohm Coaxial 75 Ohm Coaxial S Video 1 1 SCART 2 2 Component RCA X 1 RCA X 1 PC RGB D Sub X 1 D Sub X 1 PC Audio...

Page 5: ...2 Carrer NICAM Channel Memory 99ch Auto Preset 99ch Auto Preset Input Connector RF 75 Ohm Coaxial 75 Ohm Coaxial S Video 1 1 SCART 2 2 Component RCA X 1 RCA X 1 PC RGB D Sub X 1 D Sub X 1 PC Audio 3 5...

Page 6: ...d 60Hz O O X 640 X 480 72Hz O O X 75Hz O O X VESA Standard 60Hz O O X VESA Standard 800 X 600 72Hz O O X VESA Standard 75Hz O O X 60Hz O O X VESA Standard 1024 X 768 70Hz O O X VESA Standard 75Hz O O...

Page 7: ...7 3 Block Diagram...

Page 8: ...8 4 Description of Each Block 4 1 Block Diagram of Main IC and TP...

Page 9: ...a circuit board that can process various input signals such as video component PC HDMI and analog TV signal 4 2 1 Composite video Y C S Video and SCART CVBS RGB composite video Flow Chart of RF Video...

Page 10: ...10 Description of Each Block Y signal input to IC505 Location CC451 Color signal input to IC505 Location CC456...

Page 11: ...Description of Each Block 11 CVBS signal input to IC505 Location CC455 4 2 2 DTV DVD signal Y signal input to IC505 Location CC445...

Page 12: ...Description of Each Block 12 Pb signal input to IC505 Location CC446 Pr signal input to IC505 Location CC447...

Page 13: ...Description of Each Block 13 G signal input to IC505 Location CC452 B signal input to IC505 Location CC453 4 2 3 PC Personal Computer signal R signal input to IC505 Location CC454...

Page 14: ...Description of Each Block 14 Horizontal sync Output of IC505 Location RC458 Vertical sync Output of IC505 Location RC459...

Page 15: ...Description of Each Block 15 4 2 4 HDMI signal Location RC465 RC466 RC467 RC468 RC469 RC470 RC471 RC472 4 2 5 R G B PROCESSING SCART1 TELETEXT R G B R signal input to IC505 Location RC450...

Page 16: ...Description of Each Block 16 G signal input to IC505 Location RC448 B signal input to IC505 Location RC449...

Page 17: ...Description of Each Block 17 4 2 6 Audio signal processing KEY and LED Flow Chart of Audio signal COMP L sound Location ZA225...

Page 18: ...Description of Each Block 18 IC602 output Location L606 L610 IC602 input Location RC685 RC687...

Page 19: ...19 Description of Each Block Headphone out Location RC611 RC612 SIF input Location CC654...

Page 20: ...20 Description of Each Block I2S input Location RC622 CLK SPDIF out Location RC655...

Page 21: ...21 Description of Each Block Remote control signal Location RC722 Location RC623 WS...

Page 22: ...0 1A 0 5A 0 6A PWR CTL OFF Ripple and Noise AC ripple Output Voltage switching ripple Output and noise Condition Name Minimum Maximum output output Continuous voltage voltage 29V 27 0Vdc 32 0Vdc PWR...

Page 23: ...UT 1 24V 2 24V 3 24V 4 24V 5 24V 6 GND 7 GND 8 GND 9 GND 10 GND 11 DIMIMING 12 INV ON OFF 13 N C 14 GND CN5 CN6 LG PANNEL PIN NO OUTPUT 1 24V 2 24V 3 24V 4 24V 5 24V 6 GND 7 GND 8 GND 9 GND 10 GND 11...

Page 24: ...09 9P PIN NO OUTPUT 1 12V 2 12V 3 GND 4 GND 5 5VS 6 PWR ON OFF 7 GND 8 GND 9 5VS E CN3 Pin Spec CA3237W 300 08P PIN NO OUTPUT 1 DIMIMING 2 INV ON OFF 3 N C 4 GND 5 GND 6 5VS 7 5VS 8 12V C CN2 Pin Spe...

Page 25: ...ourTemp Normal B Screen Aspect 16 9 C Sound Mode News 100Hz 0 300Hz 0 1KHz 0 3KHz 0 10KHz 0 3D Panorama Off Dynamic Bass Off Balance 0 D Function Language Timer Clock Auto Clock No Auto Clock Pr __ Wa...

Page 26: ...Operating Method And then TV set display EDID WRITE OK upper left of screen 3 After EDID WRITE remove P701 Jumper S5 PANEL TEST PATTEN BLACK WHITE RED GREEN BLUE PATTEN BRIGHT MIN CEN MAX S6 PICTURE T...

Page 27: ...0 FIX Do Not Use Pr clamp 0 FIX Do Not Use Y G gain 0 FIX Do Not Use Peaking Threshold 23 FIX Do Not Use Peaking Pos_Gain 163 FIX Do Not Use Peaking Neg_Gain 163 FIX Do Not Use AOL 112 FIX Do Not Use...

Page 28: ...e pattern green pattern F S6 6 PICTURE TEST Using this key you can test brightness contrast and color G S7 7 DEMPOL CHANNEL MAP WRITE H S8 8 EEPROM Erase and White Balance adjustment Using this key yo...

Page 29: ...Confirm dimming in service mode s10 32C3 0 26C3 255 6 3 Attach white balance meter CA 210 on center of Panel 6 4 Press the service key s8 6 5 Adjust white balance with valiable R G B cutoff drive Col...

Page 30: ...weak Discharge detected in the screen 1 Check AC connection 2 Check Power S W ON 3 Check other PCBs Is the signal input Jack properly Check the connection of Jack LCD and AV device IsLVDSconnection C...

Page 31: ...When No signal in CVBS RF AV 1 First check if other inputs are working if other inputs are not working replace MAIN PCB 2 Checking waveforms with Color Bar Pattern Using the oscilloscope Main TP RF C...

Page 32: ...signal in Y C signal S Video 1 First check if other inputs are working if other inputs are not working replace MAIN PCB 2 Checking waveforms with Color Bar Pattern Using the oscilloscope Main TP Y si...

Page 33: ...Y Pb Pr signal Component 1 First check if other inputs are working if other inputs are not working replace MAIN PCB 2 Checking waveforms with Color Bar Pattern Using the oscilloscope Main TP COMP1_Y C...

Page 34: ...No signal in PC 1 First check if other inputs are working if other inputs are not working replace MAIN PCB 2 Checking waveforms with Color Bar Pattern Using the oscilloscope Main TP R signal LC217 CC4...

Page 35: ...Main PCBs Trouble Diagnosis 35 Main TP G signal CC452 LC218 Main TP B signal LC219 CC453 Main TP H sync RC458...

Page 36: ...RC459 E When No signal in HDMI 1 First check if other inputs are working if other inputs are not working replace MAIN PCB 2 Checking waveforms with Color Bar Pattern Using the oscilloscope Main TP RC...

Page 37: ...connection 2 Check Power S W ON 3 Check Main PCB Check Sound Mute On Cancel Sound MUTE Is the Speaker con nection connected Check the connection of Speaker Check RC685 RC687 Perhaps IC601 Problem Repl...

Page 38: ...ges are displaying If images are not displaying replace MAIN PCB 2 Checking waveforms with 1KHz Sound pattern B Main TP Input to IC601 CC614 CC615 Scart 1 CC612 CC613 Scart2 CC611 CC610 AV CC650 CC651...

Page 39: ...KEY PCB main TP RC398 RC399 Check Start After turn on the power does LED turn on red light After ST BY on Does LED turn on green light Is output first pin PW7 normal Check Main PCB 1 Check AC connecti...

Page 40: ...es LED turn on red light 1 Check AC connection 2 Check Power S W ON 3 Check other BLOCks Is Remote Controller working Check the Battery of Remote Controller Does set working by pressing a KEY button C...

Page 41: ...Main PCBs Trouble Diagnosis 41 Remote control signal First pin of PA912...

Page 42: ...B 1 Check AC connection 2 Check Power S W On 3 Check F801 F1 4 Check C811 C23 5 Check P802 CN4 5Vpin 6 Check the Connector 1 Check the Connector 2 Check input Voltage 3 Check P802 CN4 P O 4 Check P802...

Page 43: ...tric screwdriver plastic adjusting tool Oscilloscope for detailed examination only E Each BLOCK operations explained in this manual include oscilloscope waveforms but these are for reference only and...

Page 44: ...e MAIN PCB B Symptom of No image when LED and Back Light are working Define No image LED and BACK LIGHT of panel are correctly working but any image does not display Repairing method This is typical s...

Page 45: ...45 9 Structure of LCD Set COMPONENT PICTURE REMARK LCD PANET ALL CONNECTOR CONNECTION POWER BOARD MAIN BOARD...

Page 46: ...46 Structure of LCD Set COMPONENT PICTURE REMARK FRONT MASK BACK COVER STAND...

Page 47: ...10 EXPLODED VIEW 47 DLP 26C2...

Page 48: ...EXPLODED VIEW 48 DLP 26C3...

Page 49: ...EXPLODED VIEW 49 DLP 32C2...

Page 50: ...EXPLODED VIEW 50 DLP 32C3...

Page 51: ...EXPLODED VIEW 51 DLP 37C3...

Page 52: ...EXPLODED VIEW 52 DLP 42C1...

Page 53: ...000MF 10X20 TP LOC PARTCODE PARTNAME DESCRIPTION REMARK C638 CEXF1H471V C ELECTRO 50V RSS 470MF 13X20 TP C681 CEXF1E331V C ELECTRO 25V RSS 330MF 10X12 5 TP C682 CEXF1E331V C ELECTRO 25V RSS 330MF 10X1...

Page 54: ...ODE CHIP BAV99ML DC232 DBAV99ML B DIODE CHIP BAV99ML DC233 DBAV99ML B DIODE CHIP BAV99ML DC234 DBAV99ML B DIODE CHIP BAV99ML DC235 DBAV99ML B DIODE CHIP BAV99ML LOC PARTCODE PARTNAME DESCRIPTION REMAR...

Page 55: ...CRIPTION REMARK CC455 HCBK104KBA C CHIP CERA 50V X7R 0 1MF K 1608 CC456 HCBK104KBA C CHIP CERA 50V X7R 0 1MF K 1608 CC458 HCBK104KBA C CHIP CERA 50V X7R 0 1MF K 1608 CC459 HCBK104KBA C CHIP CERA 50V X...

Page 56: ...RIPTION REMARK DC293 DBAV99ML B DIODE CHIP BAV99ML DC401 DMMBD1204B DIODE CHIP MMBD1204 DC704 DMMBD1204B DIODE CHIP MMBD1204 DC705 DMMBD1203B DIODE CHIP MMBD1203 DC708 TBSS138 A TR CHIP BSS138 DC709 T...

Page 57: ...224JBA R CHIP 1 10 220K OHM J 1608 RC205 HRFT750JBA R CHIP 1 10 75 OHM J 1608 RC208 HRFT750JBA R CHIP 1 10 75 OHM J 1608 RC212 HRFT243JBA R CHIP 1 10 24K OHM J 1608 LOC PARTCODE PARTNAME DESCRIPTION R...

Page 58: ...8 RC553 HRFT000 BA R CHIP 1 10 0 OHM 1608 LOC PARTCODE PARTNAME DESCRIPTION REMARK RC554 HRFT000 BA R CHIP 1 10 0 OHM 1608 RC555 HRFT000 BA R CHIP 1 10 0 OHM 1608 RC558 HRFT000 BA R CHIP 1 10 0 OHM 16...

Page 59: ...HM J 1608 RC788 HRFT472JBA R CHIP 1 10 4 7K OHM J 1608 LOC PARTCODE PARTNAME DESCRIPTION REMARK RC789 HRFT000JBA R CHIP 1 10 0 OHM J 1608 RC790 HRFT152JBA R CHIP 1 10 1 5K OHM J 1608 RC791 HRFT512JBA...

Page 60: ...U AS DLP 32C2AMSB C808 CH1BEE222M C CERA AC U C V 2 5KV 2200PF TP C809 CH1BEE222M C CERA AC U C V 2 5KV 2200PF TP C823 CCXR3D221K C CERA 2KV R 220PF K 125C LOC PARTCODE PARTNAME DESCRIPTION REMARK C82...

Page 61: ...IRE COPPER 1 0 6 TIN COATING J858 85801060GY WIRE COPPER 1 0 6 TIN COATING L804 5MC0000100 COIL BEAD HC 3550 L805 5MC0000100 COIL BEAD HC 3550 L806 5MC0000100 COIL BEAD HC 3550 R804 RD 2Z474J R CARBON...

Page 62: ...WG117 M521 PLATE BASE STAND SECC T2 0 PTSNSWG118 M521A SCREW TAPPTITE TT2 TRS 4X14 MFZN BK 3CR PTSNSWG117 M521A SCREW TAPPING FLT 4X10 MFZN 3CR PTSNSWG118 M521C RUBBER BOTTOM CR60 BK PHI 18 0 X T 3 0...

Page 63: ...155 LOC PARTNAME PARTDESCRIPTION DLP 26C3 DLP 32C1 LOC PARTNAME PARTDESCRIPTION DLP 26C3 DLP 32C2 A001 PCB UNION 122 5X51 330X246 2X4 D1B PTUNJAG117 A001 PCB UNION 189X235 5 PTUNJ1G151 C996 C CERA 50V...

Page 64: ...K 3CR PTCACAG151 M201E SCREW MACHINE BIN 4X10 MFZN BK 3CR PTCACAG152 M201F CLAMP WIRE EGI T0 4 TUBE PIE 4 2 PTCACAG152 M211 COVER BACK HIPS BK PTBCSHG149 M211 COVER BACK HIPS BK PTBCSHG147 M211A CLOTH...

Page 65: ...3CR PTCACAG140 M383 FRAME BAR SECC T 1 2 A 1 AUO SSE PANEL PTCACAG151 M383 FRAME SIDE T SECC T1 2 LPL PTCACAG140 M383 FRAME STAND ABS BK PTSNSWG118 M383A SCREW MACHINE BIN 4X10 MFZN BK 3CR PTCACAG151...

Page 66: ...R PTCACAG141 M383B SCREW TAPPTITE TT2 TRS 4X16 MFZN BK 3CR PTCACAG151 M384 FRAME SIDE B SECC T 1 6 PTCACAG141 M384A SCREW TAPPTITE TT2 TRS 4X14 MFZN BK 3CR PTCACAG141 M384B SCREW TAPPTITE TT2 TRS 4X14...

Page 67: ...12 Circuit Diagram 67...

Page 68: ...Circuit Diagram 68...

Page 69: ...Circuit Diagram 69...

Page 70: ...Circuit Diagram 70...

Page 71: ...Circuit Diagram 71...

Page 72: ...72 Circuit Diagram...

Page 73: ...Circuit Diagram 73...

Page 74: ...DAEWOO ELECTRONICS CORP 686 AHYEON DONG MAPO GU SEOUL KOREA C P O BOX 8003 SEOUL KOREA PRINTED DATE OCT 2006...

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