Daewoo DLA-32C7LAB Service Manual
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Daewoo DLA-32C7LAB Service Manual

Daewoo DLA-32C7LAB Service Manual

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Service Manual

LCD TV
CHASSIS :
Model :
DLA-32C7LAB
DLA-32C7LABD
DLA-37C7LAB
DLA-37C7LABD
DLA-42C7LAB
DLA-42C7LABD
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.
S/M NO. : TSL900AEF0
SL-900A
Dec. 2007

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Summary of Contents for Daewoo DLA-32C7LAB

  • Page 1: Service Manual

    S/M NO. : TSL900AEF0 Service Manual LCD TV CHASSIS : SL-900A Model : DLA-32C7LAB DLA-32C7LABD DLA-37C7LAB DLA-37C7LABD DLA-42C7LAB DLA-42C7LABD 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.

  • Page 2: Table Of Contents

    Contents 1. Safety Precaution 2. Preliminary Troubleshooting 3. Product Specification 1) Standard of Product 2) Available Input Signal 3) Available PIP Mode 4) Closed Caption Specification 5) V Chip(Parent Control) Specification 4. Service Remote Controller 1) Key Arrangement 2) Service Mode Data 5.

  • Page 3: Safety Precaution

    1. Safety Precaution (1) When moving or laying down a LCD Set, at least two people must work together. 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 checking the condition of the broken Set, make sure to turn the power (AC) off.

  • Page 4: Preliminary Troubleshooting

    2. Preliminary Troubleshooting 1) LCD TV does not response or remote controller does not work. - Check the power cord to be plugged. - Check the battery of the remote controller. 2) Sound is discontinuous or broken sometimes. - Check if [SOUND] -> [AVC] is [ON]. - Set the sound effect into 'F Mono'.

  • Page 5: Product Specification

    3. Product Specification 1) Standard of Product Features DLA-32C7LABD DLA-37C7LABD DLA-42C7LABD LCD Panel Panel Model LC320W01-SLA1(A-/M) LC370WX4-SLA1(A-/M) LC420WX7-SLA1(A-/M) Screen Size 81.28 cm 93.98 cm 106.68 cm Aspect Ratio 16:9 Resolution 1366 x 768 (WXGA) Pixel Pitch 170.25µm X 510.75µm 0.200mm X 0.600mm 0.227mm X 0.681mm Contrast Ratio 3000 : 1 (MAX)

  • Page 6: Available Input Signal

    Product Specification 2) Available Input Signal i) TVMode Color Standard : NTCS, ATSC Ø Reception Channel : Ch 2~13 (VHF), Ch 14~69 (UHF), Ch 1, 14~125(Cable) Ø Sound Transmission System : FM Mono, 2 Carrier, Dolby Digital Ø IF &Subcarrier : Ø...
  • Page 7 Product Specification 4) Closed Caption SPEC i) DIGITAL(ATSC) standard inspection pattern : CC708 SPEC STREAM(release to GUMI factory : 2007.02.02) ii) The Caption feature doesn’t work in COMPONENT, HDMI, and PC modes. iii) The availability of captions depends on the program being broadcast. iv) Caption lables and respective meanings.
  • Page 8 Product Specification 5) V Chip(Parental Control) SPEC i) The rating doesn't work in PIP/POP mode. Reservse case is the same. ii) The rating setting is possible only on the menu. iii) Inital password : 2-2-1-1. iv) Universal key cord (When user does not know password) : 5-4-2-2. v) The TV Parental Guidelines.

  • Page 9: Service Remote Controller

    4. Service Remote Controller 1) Key Arrangement Chset/Gumi Recall Volume HEAT-RUN Auto Calibration Language Picture SVC Menu No Function No Function User Reset Factory Reset No Function...

  • Page 10: Service Mode Data

    Service Remote Controller 2) Service Mode Data To enter SERVICE MODE, A. Press “<VOL” -> “MUTE” -> “DISPLAY” -> “MUTE” button of remote controller(R-55M15) B. Press “S9” button of SERVICE REMOTE CONTROLLER. Content Default Value Description Pw388_1 Sub Bias For BRIGHTNESS adjustment (All inputs) Sub Gain For CONTRAST adjustment (All inputs) Bias R...
  • Page 11 Service Remote Controller Content Default Value Description Debug Enable Smart ICON Status Smart ICON Enable Panel Type 32”, 37”, 42” Demodulator Master Lock Lock/Unlock E/Q Lock Lock/Unlock FEG Lock Lock/Unlock Sync Lock Lock/Unlock Mode 8VSB ##.# dB DTV MODE MENU IF AGC Level #.#### Pot PER...

  • Page 12: Block Diagram

    5. Block Diagram -12-...

  • Page 13: Hardware Troubleshooting : Digital Board

    6. Hardware Troubleshooting : Digital Board 1) In spite of sound output, the screen is black. 1.1 In case of ATV, DTV, VIDEO and COMPONENT mode. START Check the input power of IC501 is correct Check the SMPS and input voltage Check the LVDS signal output of IC501 is correct (Use RC450~RC459)
  • Page 14 Hardware Troubleshooting : Digital Board 1.2 In case of PC and HDMI mode START Check PC/HDMI resolution to available resolution in LCD TV Check the input resolution of external device Check the input power of IC501 is correct Check the SMPS and input voltage Check the LVDS signal output of IC501 is correct...
  • Page 15 Hardware Troubleshooting : Digital Board 1.3 In case of DTV mode START Check the “Ant. Set” is correct in Menu Select Air/Cable in Ant. Set correctly Check the input power of IC501 is correct Check the SMPS and input voltage Check the LVDS signal output of IC501 is correct (Use RC450~RC459)
  • Page 16 Hardware Troubleshooting : Digital Board 2) In spite of picture display, the sound is not generated. START 1. Confrim AC connection 2. Confrim Power S/W on Does screen appear? 3. Check Video or other PCBs Is the Sound input Jack Check the connection of jack correctly connected? Is the speaker correctly...

  • Page 17: Lcd Panel Backlight Inverter Check

    LCD PANEL BACKLIGHT INVERTER CHECK * Pin 14 is Status Output of Backlight Inverter. Status Output of Pin 14 Normal 3.0V to 5.0V Abnormal 0V to 0.7V -17-...

  • Page 18: Hardware Troubleshooting : Smps

    7. Hardware Troubleshooting : SMPS 1) FEL-3237UL : DLA-32/37C7LABD 'CHECKING FLOW ABOUT INFERIOR SMPS' (MODEL NAME : FEL-3237UL) PAGE : 1/2 1. Stand-by 5V is working out. A. Can you check In-put voltage(DC) of the capacitor(Location No. : C22)? A. Can you check that Vcc voltage of IC1 was supplied from DC15V to DC27V? 1.1 Checking open and short of Out-put side wire cable.
  • Page 19 Hardware Troubleshooting : SMPS 'CHECKING FLOW ABOUT INFERIOR SMPS' (MODEL NAME : FEL-3237UL) PAGE : 2/2 3. 5V's Out-put voltage is measured too high or low. A. Checking open and short of IC10,IC5. B. Checking open and short of R25,R23. C.

  • Page 20: Fel-4247Ul : Dla-42C7Labd

    Hardware Troubleshooting : SMPS 2) FEL-4247UL : DLA-42C7LABD 'CHECKING FLOW ABOUT INFERIOR SMPS' (MODEL NAME : FEL-4247UL) PAGE : 1/2 1. Stand-by 5V is working out. A. Can you check In-put voltage(DC) of the capacitor(Location No. : C23)? A. Can you check that Vcc voltage of IC3 was supplied from DC15V to DC27V? 1.1 Checking open and short of Out-put side wire cable.
  • Page 21 Hardware Troubleshooting : SMPS 'CHECKING FLOW ABOUT INFERIOR SMPS' (MODEL NAME : FEL-4247UL) PAGE : 2/2 3. 5V's Out-put voltage is measured too high or low. A. Checking open and short of IC7. B. Checking open and short of R49,R50. C.

  • Page 22: Bill Of Materials

    8. Bill Of Materials 1) DLA-32C7LABD LOC PART CODE PART NAME DESCRIPTION LOC PART CODE PART NAME DESCRIPTION M321 4853296800 BRKT STAND SECC T1.6 JKJ01 4859105340 JACK S-VHS DSW-10 (STRAIGHT) M321A 7172401452 SCREW TAPPTITE TT2 TRS 4X14 MFZN BK 3CR JKJ02 4859112850 JACK PIN...
  • Page 23 Bill Of Materials LOC PART CODE PART NAME DESCRIPTION LOC PART CODE PART NAME DESCRIPTION CC145 HCBK104KBA C CHIP CERA 50V X7R 0.1MF K 1608 CC327 HCBK104KBA C CHIP CERA 50V X7R 0.1MF K 1608 CC146 HCBK104KBA C CHIP CERA 50V X7R 0.1MF K 1608 CC328 HCBK104KBA...
  • Page 24 Bill Of Materials LOC PART CODE PART NAME DESCRIPTION LOC PART CODE PART NAME DESCRIPTION CC671 HCQK331JBA C CHIP CERA 50V CH 330PF J 1608 CC889 HCBK104KBA C CHIP CERA 50V X7R 0.1MF K 1608 CC672 HCBK104KBA C CHIP CERA 50V X7R 0.1MF K 1608 CC901 HCBF105KBA...
  • Page 25 Bill Of Materials LOC PART CODE PART NAME DESCRIPTION LOC PART CODE PART NAME DESCRIPTION DZ411 D18S03015- VARISTOR CHIP AVLC18S03015 RC340 HRFT510JBA R CHIP 1/10 51 OHM J 1608 DZ412 D18S03015- VARISTOR CHIP AVLC18S03015 RC401 HRFT820JBA R CHIP 1/10 82 OHM J 1608 DZ413 D18S03015- VARISTOR CHIP...
  • Page 26 Bill Of Materials LOC PART CODE PART NAME DESCRIPTION LOC PART CODE PART NAME DESCRIPTION RC563 HRFT470JBA R CHIP 1/10 47 OHM J 1608 VA202 D18S03015- VARISTOR CHIP AVLC18S03015 RC567 HRFT470JBA R CHIP 1/10 47 OHM J 1608 VA203 D18S03015- VARISTOR CHIP AVLC18S03015 RC568...
  • Page 27 Bill Of Materials LOC PART CODE PART NAME DESCRIPTION LOC PART CODE PART NAME DESCRIPTION CE831 CEXF1C101A C ELECTRO 16V RSM 100MF 6X7 TP CC605 HCBK104KBA C CHIP CERA 50V X7R 0.1MF K 1608 CE832 CEXF1C101A C ELECTRO 16V RSM 100MF 6X7 TP CC654 HCFF474ZBA C CHIP CERA...
  • Page 28 Bill Of Materials LOC PART CODE PART NAME DESCRIPTION LOC PART CODE PART NAME DESCRIPTION IC201 1PWM2030LQ IC CHIP DECODER PWM2030L 388PIN BGA QC405 T2N7002--B FET CHIP 2N7002 (KEC) IC203 124LC2561D IC CHIP EEPROM 24LC256I/SN 8PIN SOIC (TAPE AND REEL) QC501 T2SC2412KB TR CHIP...
  • Page 29 Bill Of Materials LOC PART CODE PART NAME DESCRIPTION LOC PART CODE PART NAME DESCRIPTION RC137 HRFT470JBA R CHIP 1/10 47 OHM J 1608 RC622 HRFT152JBA R CHIP 1/10 1.5K OHM J 1608 RC201 HRFT562JBA R CHIP 1/10 5.6K OHM J 1608 RC623 HRFT103JBA R CHIP...
  • Page 30 Bill Of Materials 2) Different Materials Besides Mechanical Parts PART CODE PART NAME DESCRIPTION DLA-32C7LABD DLA-37C7LABD DLA-42C7LABD CABLE JAK4A 4859005560 CABLE LVDS LPL:FMW1214A-31A+FH10001-30+42C1LMR=450 & P703A 4850703N44 CONNECTOR SMH250-03+YRT205+YRT110+USW=600 CONNECTOR P704A 4850704S80 CONNECTOR SMH250-04+YRT205+YRT110+USW=500 P803A 4850706S36 CONNECTOR 12505HS-06+12505HS-06+ULW=900 P804A 4850705N28 CONNECTOR 12505HS-05+12505TS+ULW=900 P805A 4850715S03...

  • Page 31: Software Upgrade Methord

    9. Software Upgrade Methord 1) Main pcb Power off 2) Connecting the Pic upgrade board to Main pcb as shown below Notice : To upgrade PIC, remove(open) jumper of JP601. After upgrade completed, JP601 must be shorted with Jumper to normally operate the video board. -31-...
  • Page 32 Software Upgrade Methord 3) Run PICkit 2 Microcontroller Programmer 4) Please confirm if pickit 2 microcontroller programmer deteced device(PIC16F690) appropriately or not -32-...
  • Page 33 Software Upgrade Methord 5) Importing HEX file for upgrade -33-...
  • Page 34 Software Upgrade Methord 6) Write Click. 7) Plese remove Pickit2 upgrade board when complet massage is come out 8) Short JP601 with Jumper to normally operate the video board. -34-...

  • Page 35: Flash Upgrade

    Software Upgrade Methord 9-1. Flash Upgrade 1) Installing CDM Driver • Download the latest available CDM drivers from the FTDI web site and unzip them to a location. • Connect the device to a spare USB port on your PC. Once the composite driver has been installed Windows Found New Hardware Wizard will launch.
  • Page 36 Software Upgrade Methord • Select “Search for the best driver in these locations” and enter the file path in the combo-box (ex.“E:£‹CDM 2.00.00”in the example below) or browse to it by clicking the browse button. Once the file path has been entered in the box, click next to proceed. •...
  • Page 37 Software Upgrade Methord • The Found New Hardware Wizard will launch automatically to install the COM port emulation drivers. As above, select “No, not this time” from the options and click “Next” to proceed with the installation. • Select “Install from a list or specific location (Advanced)” as shown below and then click “Next”. •...
  • Page 38 Software Upgrade Methord • The following screen will be displayed as Windows XP copies the required driver files. • Windows should then display a message indicating that the installation was successful. Click Finish to complete the installation for the first port of the device. •...
  • Page 39 Software Upgrade Methord • Connect USB cable to the USB port of the computer. • Connect the phone jack cable the service port of set. • Run Flashupgrader.exe in the PC to excute the program as shown below. • Select current Upgrade file i) Click “Choose...”button to select the file you want to upgrade.
  • Page 40 Software Upgrade Methord • Turn on the power and then upgrade program will start the download as shown below. • When the upgrading is complete, a window (below) will be opened. Press “Finish” button to complete the process. -40-...

  • Page 41: Mechanical Development Figure

    10. Mechanical Development Figure 1) DLA-32C7LABD -41-...

  • Page 42: Dla-37C7Labd

    Mechanical Development Figure 2) DLA-37C7LABD -42-...

  • Page 43: Dla-42C7Labd

    Mechanical Development Figure 3) DLA-42C7LABD -43-...
  • Page 44 Hanger Unit User's Manual DLE-LHG10 LCD TV HANGER AS UNIT Thank you for purchasing the hanger unit for LCD TV. Please observe this user's manual carefully before installation for your safety. The product is exclusively used for DAEWOO LCD TV only.
  • Page 45 Table of Content 1. Check components in the package ………………………………………… 2. Warnings & Precautions ……………………………………………………………… 3. Angle Adjustment …………………………………………………………………………… 4. How to installation …………………………………………………………………………… * To install the hanger correctly and safely, ask your local service center for installation.
  • Page 46 LCD TV HANGER AS UNIT 1. Check components in the package Hanger Support Anchors for concrete wall 1pcs 8pcs Screws (65mm) Holder 4pcs 8pcs M4 Screws (35mm) Washer 8pcs 4pcs M6 Screws (65mm) Paper model 2pcs...

  • Page 47: Warnings And Precautions

    It may fall down and cause personal injury or product damage. While tightening the screws and The hanger was designed only for installing the TV set, no deformation DAEWOO LCD TV so don't use the of the product is allowed. hanger for any other Products. Warning Warning It may fall down and cause personal injury or product damage.
  • Page 48 LCD TV HANGER AS UNIT • Observe the followings for installation and transportation. This is heavy unit so extra care must be Restrict any other's access to working given at installation. area than the installers. Caution Caution When installing the device on concrete wall; Use anchors supplied in the package.
  • Page 49 • Observe the followings for installation and transportation. Determine the installation place referring to below dimensions and attach the paper model on the wall first. Caution Dimension Unit 2610 26C2 26C3 3210 32C2 32C1/32C3 37C3 * Unit: mm If the place is not appropriated, the wall can be damaged. Maintain enough space (15cm) from other objects on the wall.
  • Page 50 LCD TV HANGER AS UNIT 3. Angle Adjustment (5°, 10°, 15°, 20°) You can set the view angles for your convenience. * Completely remove four screws from both upper sides. * Match the holes of A and B and join them with screws. * Match the holes of B and C and join them with screws.
  • Page 51 4. How to Install Assembly of Hanger Holder Removing packing * Remove the string and open the box * Remove the styrofoam from the top with the product upside. and vinyl back. Removing Stand * Cover a mat of sheet (vinyl back packing) * Unscrew screws from the stand and on the floor to prevent the product from disassemble it from the body.
  • Page 52 LCD TV HANGER AS UNIT Assembling the holder * Unscrew 4 screws from the center area of the back. (Store them in a secure place for future use) * Fix the holder on the product back by screwing down 4 screws (M4*35mm) on both right and left sides.
  • Page 53 Installing the support on the wall Attaching paper model on the wall * Attaching the paper model supplied * Using a hand drill, make screw holes in the package on the wall using glue in the wall through the guide holes in or tape.
  • Page 54 LCD TV HANGER AS UNIT Installing the support on the wall * Match the support on the anchors in the wall and tighten 8 screws. Washer Screw Screw driver When installing the product on the simple frame wall with reinforcing wooden piece. * If the hanger support can not be firmly fixed because of the structural problem with the simple frame wall, fix the one side of the product in the wall completely and fix the other side in the wall using the most appropriate hole among 7 holes...

  • Page 55: Installing Lcd Tv

    Installing LCD TV When maximum safety is required * If maximum safety is required for the TV mounting, temporarily tighten M6 (M6*65mm) screws in the hanger support for 5 mm and then completely tighten them after installing the main body. Assembling the holder in the support grooves.
  • Page 57 P/N:48587220E117-R2...
  • Page 58 Please read this user manual before installing the product for user safety. This product is manufactured to be used only for the designated Daewoo models. Refer to the paper model for arrangement included with the product for this product applied model.
  • Page 59 Contents 1.Check the components 2.Warning and caution 3.Installation 4.Adjusting the angle To install this product safely and accurately, you must do the installation by requesting to the service center.
  • Page 60 HANGER AS UNIT 1. Check the components FrameA FrameB Connecting FrameC Concrete wall anchor 2 ea 2 ea 1 ea 12 ea Wall screws Frame C fixation Bolts(M5) 4 ea 12 ea Frame A fixation Bolts(M4/M6) Safety fixation Bolts(M3) M4 4 ea 6 ea M6 4 ea Paper pattern plan...
  • Page 61 It can cause injury or damage to the product when it falls. When assembling or installing the product, no part of Because this hanger is designed only for Daewoo the product must be deformed or changed. products, you must not use it for other products.
  • Page 62 HANGER AS UNIT You must follow the details during installation or transportation. Because the weight of the product assembly is heavy, During the installation, make sure all people besides it requires special care for the location to install the product. the work are not close by.
  • Page 63 You must follow the details during installation or transportation. During the installation, designate the location by referring to the product size, and attach the paper model for arrangement on the wall. Refer to the exterior pictures by product shown in the paper model for arrangement when setting the Caution product.
  • Page 64 HANGER AS UNIT 3. Installation Assemble holder for wall hanger on the LCD/PDP TV Remove the product package After removing the wrapping string, open the After removing the top Styrofoam, remove the product so that the top of the box faces up. plastic bag of the product.
  • Page 65 Assemble wall hanger frame A to the product Align the bottom fixation hole of the set and the reference location of frame A accurately before assembling. Note! If the groove is not aligned properly, it can wear the screw and might not be installed. Precautions when assembling frame A When assembling frame A, align the unit to the reference location by set and assemble the 4 fixation screws with a driver.
  • Page 66 HANGER AS UNIT Assemble connecting frame C with wall hanger frame B and installing it on the wall Assemble the connecting frame C with the wall hanger frame B Frame B Align the fixating part of frame B to the marked location by the set.
  • Page 67 Anchor fixation Hammer the anchor (12 units) for concrete wall on the groove. When it is not assembled at the designated location inevitably, it can be assembled in the nearest location. But do not make changes for more than 2 locations. (Paper pattern plan) (Concrete wall anchor) Install the wall hanger mount on the wall...
  • Page 68 HANGER AS UNIT When installing the attached wall with reinforcement installed When the distance between the reinforcements on the attached wall are not appropriate in terms of structure and when it is not easy to fixate the wall hanger mount, completely fixate one side to the reinforcement wood and using the assembly holes on the frame (12 holes) appropriately fixate it to the reinforcement wood.
  • Page 69 Installing the LCD/PDP TV product on the wall Assemble top of frame A and frame B Assemble the top of frame A assembled to LCD/PDP TV to the top part of frame B. When you increase the angle of frame A while installing the set, you can easily install the set.
  • Page 70 HANGER AS UNIT Assemble safety device screw After assembling the product, assemble 6 screws on the fixation location of frame B using the fixation screw (M3) of the safety device. When leveling the product After assembling the LCD/PDP TV product and the wall hanger product, check whether it is leveled.
  • Page 71 4.Adjusting the angle (0° ~ 20° ) This is the work to adjust the viewing angle. Completely pull out the two screws on the top. Adjust the angle of the top of the frame B. Note This work must be done when the LCD/PDP TV has been removed. Keep the two screws removed from the assembly in a safe location for future angle adjustment.
  • Page 72 48587240E106-R1...
  • Page 73 DAEWOO ELECTRONICS CORP. 686, AHYEON-DONG, MAPO-GU, SEOUL, KOREA. C.P.O. BOX 8003 SEOUL KOREA PRINTED DATE : Dec. 2006...

This manual is also suitable for:

Dla-37c7labDla-32c7labdDla-37c7labdDla-42c7labDla-42c7labd

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