Daewoo LM32L1 Service Manual
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Daewoo LM32L1 Service Manual

Chassis : sl-602m/p
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S/M NO. : TSL602MEF0
Service Manual
LCD TV
CHASSIS : SL-602M/P
Model : LM/LP(32/37/42)L1
LM/LP(32/37/42)L1B1M
LM/LP(32/37/42)L2
LM/LP(32/37/42)L2BSM
LM/LP(32/37/42)L2Z
LM/LP(32/37/42)L2BZM
LM/LP(32/37/42)L2K
LM/LP(32/37/42)L2BKM
LM/LP(32/37/42)L2R
LM/LP(32/37/42)L2BRM
Jan. 2008

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Summary of Contents for Daewoo LM32L1

  • Page 1 S/M NO. : TSL602MEF0 Service Manual LCD TV CHASSIS : SL-602M/P Model : LM/LP(32/37/42)L1 LM/LP(32/37/42)L1B1M LM/LP(32/37/42)L2 LM/LP(32/37/42)L2BSM LM/LP(32/37/42)L2Z LM/LP(32/37/42)L2BZM LM/LP(32/37/42)L2K LM/LP(32/37/42)L2BKM LM/LP(32/37/42)L2R LM/LP(32/37/42)L2BRM Jan. 2008...

  • Page 2: Table Of Contents

    Contents 1.Safety Precaution 2.Product Specification 2-1.Product Specification 2-2.Available Input Signal 2-2-1.HDMI/PC/COMPONENT 2-2-2.VIDEO 3.Block Diagram 4.Description of Each Block 4-1.Overview 4-1-1.AV1_CVBS 4-1-2.AV2 - S-VIDEO 4-1-3.COMPONENT-Y Pb Pr 4-1-4.HDMI 4-1-5.PC 4-1-6.Sound Output 4-2.POWER PCB 4-2-1.Input Requirements 4-2-2.Output Voltage and Current 4-2-3.Connectors 5.SERVICE MODE 6.Main PCB Trouble Diagnosis 6-1.Main PCB Trouble Diagnosis 6-1-1.Common checking process when “No signal of Noraster”...

  • Page 3: Safety Precaution

    1. Safety Precautions (1) When moving or laying down a LCD Set, please deal with care. Avoid any impact towards the LCD Set. (2) Do not leave a broken LCD Set on for a long time. To prevent any further damages, after check the broken Set’s condition, make sure to turn the power(AC) off.

  • Page 4: Product Specification

    2. Product Specification 2-1.PRODUCT SPECIFICATION Features 32" Model 37" Model 42" Model 32" 37" 42" Screen Size Panel Name LC320WXN LC370WXN LC420WXN Aspect Ratio 16 : 9 16 : 9 16 : 9 Resolution 1366x768(WXGA) 1366x768(WXGA) 1366x768(WXGA) LCD Panel 0.170mm x 0.200mm x 0.227mm x Pixel Pitch...

  • Page 5: 2-2.Available Input Signal

    Product Specification 2-2.Available Input Signal 2-2-1.HDMI/PC/COMPONENT Resolution V-freg HDMI PC(D-Sub) Component Standard 60Hz 640 x 480 72Hz 75Hz VESA Standard 60Hz VESA Standard 800 x 600 72Hz VESA Standard 75Hz 60Hz VESA Standard 1024 x 768 70Hz VESA Standard 75Hz VESA Standard 60Hz 1360(6) x 768...

  • Page 6: Block Diagram

    3. Block Diagram .Block Diagram SL-602P/M Block Diagram IIC_Tuner KEY2 Analog Tuner KEY1 Circuit Tuner_CVBS REMOCON REMOTE SC1 S/SW Circuit R/G/B CVBS EEPROM RF Out [M24C32] ï CVBS Monitor out DDR RAM DDR RAM 16bit 256Mb Main IC (CORTEZ LITE) [FLI8541] SC2 S/SW L/R Out...

  • Page 7: Description Of Each Block

    4. Description of Each Block 4-1.Overview Digital PCB is Multi Media circuit board that can process various input signals such as Video, Component, PC, HDMI and analog TV signal.

  • Page 8: 4-1-2.Av2 - S-Video

    Description of Each Block 4-1-1. AV1 _CVBS CVBS signal(input to IC501), LOC : RC508 4-1-2. AV2_S-VIDEO Y signal(input to IC501), LOC : RCA31 Color signal(input to IC501), LOC : RCA30...

  • Page 9: 4-1-3.Component-Y Pb Pr

    Description of Each Block 4-1-3. COMPONENT_YPbPr Y signal(input to IC501), LOC : LCA08 Pb signal(input to IC501), LOC : LCA06 Pr signal(input to IC501), LOC : LCA04...

  • Page 10: 4-1-4.Hdmi

    Description of Each Block 4-1-4. HDMI HDMI signal(input to IC 501), LOC : LC301 ~ LC312 4-1-5. PC R signal(input to IC501), LOC : LC210 G signal(input to IC501), LOC : LC208 -10-...
  • Page 11 Description of Each Block B signal(input to IC501), LOC : LC206 Horizontal sync(input to IC501), LOC : LC204 Vertical sync9input to IC501), LOC : LC203 -11-...

  • Page 12: 4-1-6.Sound Output

    Description of Each Block 4-1-6. Sound Output Speaker Output 4-2. Power PCB 4-2-1. Input Requirements 32” & 37” Normal Voltage P: AC 220V ~ 240V M: AC 110V ~ 240V Normal Frequency 50/60Hz Input Current < 1.0 Arms at 220 Vac input Inrush Current 220V 80A peak Earth Leakage Current...

  • Page 13: 4-2-2.Output Voltage And Current

    Description of Each Block 4-2-2. Output Voltage and Current 32” & 37” Minimum Maximum Output Current Output Board Output Output Condition Voltage Voltage Voltage +15Vdc +13.50Vdc +16.50Vdc 0.5A 1.5A +24Vdc +22.30Vdc +25.40Vdc 5.0A 5.6A PWR-CTL +12Vdc +11.40Vdc +12.60Vdc 0.2A 1.2A 1.5A ST+5Vdc +4.75Vdc...

  • Page 14: 4-2-3.Connectors

    Description of Each Block 4-2-3 Connectors B. Power to Main(CN2) pin spec A. Panel to Power(CN8,CN3) pin spec CN8(32", 37"), CN3(42") PIN No. Output Output PIN No. +24V +12V +24V +12V +24V +24V +24V +S5V PWR ON/OFF P DIMMING DIMMING INV ON/OFF DIMIMING +15V...

  • Page 15: Service Mode

    ‘SL-601T’ and ‘SL-602P’ and ‘SL-602M’ Select Type PANEL LG-32 Using buttons, select between 'AUO_26' - 'SAMSUNG_26' - 'LG_32' - 'SAMSUNG_32' - 'LG_37' ' BUYER Daewoo Using buttons, select between 'Daewoo' and 'IRAN' and 'Newziland' - 'Others' and Indonesia -15-...

  • Page 16: Main Pcb Trouble Diagnosis

    6. Main PCB Trouble Diagnosis 6-1.Main PCB Trouble Diagnosis 6-1-1.Common checking process when “No signal of No raster” No signal : OSD is work but no images are displying No raster : OSD as well as images in not working Check start 1.Check AC connection Is a weak...
  • Page 17 Main PCBs Trouble Diagnosis A.When “No signal”in CVBS(RF, Monitor Out) 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) : CE103 - Main TP(Monitor Out) : RCA12 -17-...
  • Page 18 Main PCBs Trouble Diagnosis B.When “No 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 signal) : RCA31 - Main TP(C signal) : RCA30 -18-...
  • Page 19 Main PCBs Trouble Diagnosis C.When “No signal”in 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) : LCA08 - Main TP(COMP1-Pb) : LCA06 -19-...
  • Page 20 Main PCBs Trouble Diagnosis - Main TP(COMP1-Pr) : LCA04 D.When “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) : LC210 -20-...
  • Page 21 Main PCBs Trouble Diagnosis - Main TP(G signal) : LC208 - Main TP(B signal) : LC206 - Main TP(H-sync) : LC204 -21-...
  • Page 22 Main PCBs Trouble Diagnosis - Main TP(V-sync) : LC203 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 : LC301 ~ 312 -22-...

  • Page 23: 6-1-2.When No Sound

    Main PCBs Trouble Diagnosis 6-1-2.When No Sound Check start 1.Check AC connection 2.Check Power S/W ON Do images display on screen? 3.Check Main PCB Cancel Sound MUTE Check Sound Mute On? Check the connection Is the Speaker connection connected? of speaker Check #34, 36 of IC601 Perhaps IC601 problem ( or #22, 32 of IC603)

  • Page 24: 6-1-3.When Control Key Does Not Operate

    Main PCBs Trouble Diagnosis 6-1-3.When Control Key does not operate Check start 1.Check AC connection After turn on the power, 2.Check Power S/W ON does LED turn off? 3.Check other PCBs Check the connection of After ST-BY on, Does LED KEY PCB to MAIN PCB turn on blue light? =>...

  • Page 25: 6-1-4.When Remote Controller Does Not Operate

    Main PCBs Trouble Diagnosis 6-1-4.When Remote Controller doses not operate Check start 1.Check AC connection After turn on the power, 2.Check Power S/W ON does LED turn off? 3.Check other BLOCKs Chek the Battery of Is Remote Controller working? Remote Controller Check the connection between Does set working by pressing a KEY button? LED PCB and MAIN PCB...
  • Page 26 Main PCBs Trouble Diagnosis Remote Controller signal(LCQ09) -26-...

  • Page 27: 6-2.Power Pcb

    Main PCBs Trouble Diagnosis 6-2.POWER PCB Check start 1.Check AC connection 2.Check Power S/W ON After turn on the power, 3.Check F1 does LED turn off? 4.Check C9 5.Check CN9 or P8015V pin 6.Check the Connector 1.Check the connector 2.Check input Voltage After Power on, Does Picture on? 3.Check CN9 or P801 P/O 4.Check CN9 or P801 12V...

  • Page 28: Trouble Diagnosis

    7. Trouble Diagnosis 7-1.Facts you must know when trouble Diagnosing or Repairing. A.Trouble diagnosing and repairing of set mean find out which PCBs or blocks are not working and replace them with new PCBs. Repairing the broken PCBs are not necessary Keep the broken PCBs and return to service center or R&D center.

  • Page 29: 7-2.Typical Symptoms Of Pcb Problem Or Bad Connection

    Trouble Diagnosis 7-2.Typical Symptoms of PCBs problem or bad connection A.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 symptom when LVDS cable incorrectly connects.

  • Page 30: Exploded View

    8. Exploded View 32L1 -30-...
  • Page 31 Exploded View 32L2 -31-...
  • Page 32 Exploded View 37L1 -32-...
  • Page 33 Exploded View 37L2 -33-...
  • Page 34 Exploded View 42L1 -34-...
  • Page 35 Exploded View 42L2 -35-...

  • Page 36: Service Part List

    9. Service part list 9-1.BOM LM32L1B1SM PART CODE PART NAME DESCRIPTION PART CODE PART NAME DESCRIPTION JPA04 4859101780 JACK PIN YPJ-03S68 (3P SCART TYPE) ZZ100 48B6360C01 TRANSMITTER REMOCON R-60C01 (AAA) ZZ110 PTACPWG490 ACCESSORY AS LP32L1B1LM JPA05 4859106840 JACK S-VHS SHAMD-1402-040B4 JPA07 4859201170 CONN OPTICAL SENSOR...
  • Page 37 Service part list PART CODE PART NAME DESCRIPTION PART CODE PART NAME DESCRIPTION CC623 HCFD105ZBA C CHIP CERA Y5V 10V 1MF Z 1608 RC623 HRFT332JBA R CHIP 1/10 3.3K OHM J 1608 CC624 HCBK104KBA C CHIP CERA 50V X7R 0.1MF K 1608 RC624 HRFT182JBA R CHIP...
  • Page 38 Service part list PART CODE PART NAME DESCRIPTION PART CODE PART NAME DESCRIPTION CC657 HCFF474ZBA C CHIP CERA Y5V 16V 0.47MF Z 1608 JK303 4859201360 CONN HDMI 51V019S-36WT-A1R CC658 HCBK104KBA C CHIP CERA 50V X7R 0.1MF K 1608 L601 HLC330KECE L CHIP COIL 33UH K 1280 CC659...
  • Page 39 Service part list PART CODE PART NAME DESCRIPTION PART CODE PART NAME DESCRIPTION XC601 5XJ27R00AE CRYSTAL QUARTZ HC-49/S 27.000MHZ 10PF 30PPM RC528 HRFT103JBA R CHIP 1/10 10K OHM J 1608 RC529 HRFT103JBA R CHIP 1/10 10K OHM J 1608 ZZ200 PTMPJ2G509 PCB MAIN CHIP B AS LM32L1B1SM...
  • Page 40 Service part list PART CODE PART NAME DESCRIPTION PART CODE PART NAME DESCRIPTION CC836 HCQK102JBA C CHIP CERA 50V CH 1000PF J 1608 VA303 D10S031R1- VARISTOR CHIP ADUC10S031R1 CC839 HCQK102JBA C CHIP CERA 50V CH 1000PF J 1608 VA304 D10S031R1- VARISTOR CHIP ADUC10S031R1 CC901...
  • Page 41 Service part list PART CODE PART NAME DESCRIPTION PART CODE PART NAME DESCRIPTION CE501 HCEJC220MC C CHIP ELECTRO 6.3V 22MF CS 4052 LC911 HFFMMZ400A F CHIP FERRITE BEAD 40 OHM MMZ 2012S CE502 HCEJC220MC C CHIP ELECTRO 6.3V 22MF CS 4052 LC912 HFFMMZ400A F CHIP FERRITE BEAD...
  • Page 42 Service part list PART CODE PART NAME DESCRIPTION RC59G HRFT000JBA R CHIP 1/10 0 OHM J 1608 RC59H HRFT000JBA R CHIP 1/10 0 OHM J 1608 RC59I HRFT000JBA R CHIP 1/10 0 OHM J 1608 RC59J HRFT000JBA R CHIP 1/10 0 OHM J 1608 RC607 HRFT221JBA R CHIP...

  • Page 43: 9-2.Differential Parts List For Panel

    9-2.Differential parts list for Panel. Maker Part Name LC320WXN-SAC1 V901 LCD PANEL LC370WXN-SAB1 LTA320AB02 LC420WXN-SAB1 P502B LVDS CABLE 4859008160 4859008560 RC560 R CHIP 1/10 10K OHM J 1608 RC566 R CHIP 1/10 10K OHM J 1608 RC707 R CHIP 1/10 0 OHM J 1608 RC710 R CHIP 1/10 100 OHM J 1608...

  • Page 44: Circuit Diagram

    10. Circuit Diagram -44-...
  • Page 45 Circuit Diagram -45-...
  • Page 46 Circuit Diagram -46-...
  • Page 47 Circuit Diagram -47-...
  • Page 48 Circuit Diagram DIFFERENT PARTS FOR SL-602M LOC. Part Name LM32L1B1SM LM32L1B1LM LM37L1B1LM LM42L1B1LM P502B CABLE LVDS SS:SMH200-30C+10030HS-30L+SLS00T=300 LPL:SMH200-30C+10030HS-30L2B+SLS00=300 <-- <-- RC560 R CHIP 1/10 10K OHM J 1608 <-- <-- RC566 R CHIP 1/10 10K OHM J 1608 RC707 R CHIP 1/10 0 OHM J 1608 <-- <--...
  • Page 49 DIFFERENT PARTS FOR SL-602P Part Name LM32L1B1SM LP32L1B1SM LP32L1B1LM LP37L1B1LM LP42L1B1LM DCA13 VARISTOR CHIP AVLC18S03015 <— <— <— DCA14 VARISTOR CHIP AVLC18S03015 <— <— <— DCA23 VARISTOR CHIP AVLC18S03015 <— <— <— DCA25 VARISTOR CHIP AVLC18S03015 <— <— <— DCA26 VARISTOR CHIP AVLC18S03015 <—...
  • Page 50 DIFFERENT PARTS FOR SL-602P Part Name LM32L1B1SM LP32L1B1SM LP32L1B1LM LP37L1B1LM LP42L1B1LM RCA18 R CHIP 1/10 75 OHM J 1608 <— <— <— RCA19 R CHIP 1/10 0 OHM J 1608 1/10 10K OHM J 1608 <— <— <— RCA20 R CHIP 1/10 75 OHM J 1608 <—...
  • Page 51 DAEWOO ELECTRONICS CORP. 686, AHYEON-DONG, MAPO-GU, SEOUL, KOREA. C.P.O. BOX 8003 SEOUL KOREA PRINTED DATE : Sep. 2008...

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