Daewoo DPP-42A1LASB Service Manual
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Daewoo DPP-42A1LASB Service Manual

Daewoo DPP-42A1LASB Service Manual

42" plasma pdp tv, chassis sp-220p
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Service Manual
42" PLASMA PDP TV
CHASSIS :
Model :
DPP-42A1LASB
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. : DSP220PEF0
SP-220P

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Summary of Contents for Daewoo DPP-42A1LASB

  • Page 1 42" PLASMA PDP TV CHASSIS : SP-220P Model : DPP-42A1LASB 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...

  • Page 2: Table Of Contents

    1. Safety Precaution 2. Product Specification 2-1. SPECIFICATION 2-2. Available Input Signal 2-3. Remote Control Setup Code 3. The Features of Inside 4. DPP-42A1LASB Block Diagram 5. Default Setting in User Menu OSD 5-1. Picture Mode 5-2. Sound 5-3. Screen 5-4. Features 6.

  • Page 3: Parts With Exception Of Module

    I. Parts with the exception of MODULE 1. Safety Precautions 1. Safety Precautions (1) When moving or laying down a PDP Set, at least two people must work together. Avoid any impact towards the PDP Set. (2) Do not leave a broken PDP 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: Product Specification

    2. Product Specification 2-1. SPECIFICATION I T E M S P E C I F I C A T I O N REMARK 1. GENERAL 1-1. MODEL NO DPP-42A1LASB 1-2. CHASSIS NO SP-220P 1-3. SCREEN SIZE 42” (16:9) 1-4. COUNTRY Europe 1-5.
  • Page 5 Product Specification I T E M S P E C I F I C A T I O N REMARK 3-10. POWER CONSUMPTION 270W 3-11. RS-232 CONTROL RS-232 Communication (EXTERNAL UPGRADE) 3-12. AV OUTPUT SCART(CVBS, SOUND R/L) 2 Ports 3-13. FUNCTION 1) SCALING DVI : Screen Mode (16:9, 4:3, Panorama) PC : Screen Mode (16:9, 4:3, Panorama), H/V Position, Auto...

  • Page 6: Available Input Signal

    Product Specification 2-2 Available Input Signal (1) PC & DVI Resolution H Freq. (KHz) V Freq. (Hz) Remark 31.469 59.940 640 X 480 37.861 72.809 VESA 37.500 75.000 VESA 720 X 400 31.469 70.087 35.156 56.250 VESA 800 X 600 37.879 60.317 VESA...

  • Page 7: Remote Control Setup Code

    Product Specification 2-3. Remote Control Setup Code...
  • Page 8 155 171 CONTINENTAL EDISON CORVUS CRAIG CROSLEY CROWN 029 061 064 171 CROWN/ ONWA CURTISMATHES CYRUS DAEWOO 021 033 061 064 155 171 DANSAI DAWA DAYTRON DE GRAAF DECCA 047 065 090 148 155 166 175 DECCA(UK) DEGRAAF 049 054 065 113 148...
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  • Page 27 Product Specification -26-...

  • Page 28: The Features Of Inside

    3. The Features of Inside -27-...

  • Page 29: Dpp-42A1Lasb Block Diagram

    4. DPP-42A1LASB Block Diagram -28-...

  • Page 30: Default Setting In User Menu Osd

    5. Default Setting in User Menu OSD 1. Picture Mode 1) Mode Normal Dynamic Cinema User Brightness Undefined Contrast Undefined Sharpness Undefined Colour Undefined Tint Undefined DVI & PC Input - Only brihgtness and contrast are available. 2) Default value of other functions in picture mode Function Default Value Colour Temp...

  • Page 31: Screen

    Default Setting in User Menu OSD 3. Screen 16 : 9 4 : 3 Panorama LB (16:9) LBS (16:9) 14 : 9 LB (14:9) LBS (14:9) Auto Component H. Position, V. Position, and Auto screen size is available only in PC mode. 4.

  • Page 32: Service Mode

    6. Service Mode To enter SERVICE MODE, ◀VOL -> MUTE -> RECALL -> MUTE A. Press “ ” button of remote ” “ ” “ ” “ controller (R-53J17) B. Press “ ” button of SERVICE REMOTE CONTROLLER. [Note] In the first line, there is the model name and the version of the upgraded program on the PDP set.
  • Page 33 Service Mode The automatically set offset values may different from the default value depend on B/D. However, the main B/D should be replaced or contact Kunpo R&D center in Korea if the OFFSET values differ more than ±20 from default value. 3.

  • Page 34: Power Pcb

    7. Power PCB 1 Input and Environmental Requirement Input Requirement Description Environment Requirement Description Norminal Input Voltage AC100V to AC240V Operating Temperature Range -10 to 50 deg. Input Voltage Variation Range AC85V to AC276V Operating Humidity Range 10 to 90 % Nominal Frequency 50 / 60 Hz Storage Temperature Range...

  • Page 35: Connector Specification

    Power PCB 0.08A or more Shut down by Under Voltage 1.0A or more Shut down by Under Voltage -17V 1.0A or more Shut down by Under Voltage 220V or less Shut down 86V or less Shut down 5V (ctrl) 5.5 - 7.0 Shut down Over Voltage 13 - 17V...

  • Page 36: Power Adjustment

    8. Power Adjustment Power Adjustment – Adjusting to standard power voltages, which are written in the upper right side of PDP module. These values were already adjusted by PDP module makers while producing. Therefore, if there are some problems in picture after adjusting, you should classify that PDP module as a fault and contact to PDP module maker.

  • Page 37: Vs (Adress Voltage)

    Power Adjustment 2. Va (Address Voltage) : Data Input Voltage Measurement Equipment : Digital Volt Meter (DC volt mode) Adjusting TP : TP206 (Vd) Adjusting Location : RV204 (Vd ADJ) Optimum Adjusting Voltage : The voltage which is written in the label located in upper right side of the PDP module.

  • Page 38: 5Vcntl

    Power Adjustment 3. 5Vcntl (5V control) Measurement Equipment : Digital Volt Meter (DC volt mode) Adjusting TP : TP203 Adjusting Location : RV201 Optimum Adjusting Voltage : The voltage which is written in the label located in upper right side of the PDP module. (Typical Voltage : 5.2V) -37-...

  • Page 39: Noticeable Points While Assembling

    9. Noticeable Points While Assembling 1 Insertion of Ring Core (EMI Filter) to Speaker Cable (L,R), AV3 Cable and their position Coil the Ring Core (Filter EMI, S/N: 5PZCA2009A) 2 turns with Speaker Cable (L,R) as shown in the figure below. Coil the Ring Core (Filter EMI, S/N: 5PZCAT3035) 1 Turn with AV3 Cable as shown in the figure below.
  • Page 40 Noticeable Points While Assembling 3 LVDS Cable Connection CABLE LVDS, S/N : 4856818800 a. DIGITAL B/D part CLAMP WIRE, S/N : 4856818800 CLAMP WIRE, S/N : 4856815900 (Place these CLAMP WIRES as shown in the figure below) * Make LVDS Cable not to touch on the Terminal Plate while connecting. b.
  • Page 41 Noticeable Points While Assembling Shieldron Tape on SCART Input Tape EMI, S/N : 485A100071 (Position: From top of Scart to Terminal Channel Gasket) Shieldron Tape on DVI Input Tape EMI, S/N : 485A100571 (attach vertically, 3 X 4.2 Cm) (Position: From top of DVI to Terminal Channel Gasket) -40-...

  • Page 42: Software Upgrade Method

    10. Soft ware Upgrade Method 1. Check whether MAIN PCB is connected to SUB PCB (PA901 to P901). 2. Connect 9-PIN serial cable to the serial port of the computer. 3. Connect the opposite end of the serial cable to RS-232C port of SUB PCB. 4.
  • Page 43 SOFTWARE UPGRADE Method 6. Select correct COM Port and Baud Rate(115200) as shown below. Then press Flash button to finish setup. 7. Turn on the ac power and then upgrade program will start the download as shown below. -42-...
  • Page 44 SOFTWARE UPGRADE Method 8. When the upgrading is complete, a window (below) will be opened. Press “Finish” button to complete the process. -43-...

  • Page 45: Trouble Shooting

    11. Trouble Shooting Before starting Trouble Shooting 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 them to service center or R&D center.
  • Page 46 Trouble Shooting White input using Test Pattern of Service Mode. Check the screen conditions and basic functions. Caution 1 !! When disconnecting / connecting connectors, you MUST turn “OFF” the AC power and check the direction and position of the connectors before working.
  • Page 47 Trouble Shooting 1 No Signal or No Raster Check Start Check AC connection Does “No Signal” Is a weak discharge Check CN805, CN806 screen appear? detected in the screen? connectors Check Power S/W ON Check LVDS connection Is the signal input Jack Check the connection of Is LVDS connection between Digital B/D and...
  • Page 48 Trouble Shooting 2 No Sound Check Start Is an image Go to the section displaying on of ‘No Image’ screen? Connect the jack and Is the sound jack of external check the sound device properly connected? again Cancel the mute and Is mute key check the sound pressed?
  • Page 49 Trouble Shooting 3 Shut Down Check Start Turn AC power OFF Open BACK COVER Disconnect CN806 of Power PCB Set Power PCB’s voltage switch to LOW Turn AC power ON (Stand By) Turn on the set (Green LED) Is ‘SHUT DOWN’ occured? Connect CN806 back and disconnect Go to ‘Low Voltage CN801, CN803,CN804, CN805...
  • Page 50 Trouble Shooting A) Low Voltage Shut Down Check Start Turn AC power off Disconnect CN805 of Power PCB Turn on the set after AC power on Is ‘SHUT DOWN’ occured? Turn AC power off Turn AC power off Connect CN805 back and disconnect Replace Main B/D CN 801, CN803, CN804 of Power PCB Connect all connectors and set Power...
  • Page 51 Trouble Shooting B) Z-SUS, Digital B/D, Data B/D Shut Down Check Start Turn on the set after AC power on Is ‘SHUT DOWN’ occured? Turn AC power off Turn AC power off Connect P2 of Z-SUS B/D Replace Z-SUS B/D Connect P2, P3 back and turn on the Turn on the set after AC power on set after AC power on...
  • Page 52 Trouble Shooting C) Y-SUS, Scan B/D Shut Down Check Start Disconnect P3, P4 of Y-SUS Turn on the set after AC power on Is ‘SHUT DOWN’ occured? Turn AC power off Turn AC power off Replace Y-SUS B/D Replace Scan B/D Connect all cables and set Connect all cables and set voltage switch to High...
  • Page 53 Trouble Shooting D) High Voltage Shut Down Check Start Disconnect P1 of Z-SUS Turn the set on after AC power on Is ‘Shut Down’ occured? Turn AC power off Turn AC power off Disconnect three metal plates Connect P1 of Z-SUS back between Y-SUS and Scan B/D Disconnect P5 of Y-SUS and Turn the set on after AC power on...
  • Page 54 Trouble Shooting 4 No Key Operation Check Start Turn on the Power S/W (AC ON) Check the AC connection Does LED turn on to red light? Check the Power S/W on Turn on the set using remote control Dees LED turn on to green Replace the Main B/D light? Check the connector of Key PCB...
  • Page 55 Trouble Shooting 5 No Remote Control Operation Check Start Turn on the Power S/W (AC ON) Check the AC connection Does LED turn on to red light? Check the Power S/W on Turn on the set using remote control Check the other buttons of Dees LED turn on to green light? remote control Are all buttons...
  • Page 56 Trouble Shooting 6 No Key and Remote Control Operation Check Start Check the battery of remote control Replace the LED PCB Turn the AC Power ON Try to turn on the set using remote control Is the remote control Replace the Key PCB working? Replace the Main B/D Done...
  • Page 57 Trouble Shooting 7 Weak Discharge or Abnormal Discharge Check Start Check the Vs and Va of Power PCB Are they normal? Set the values to typical voltages Do you still see the weak Replace the Y-SUS discharge or abnormal discharge on the screen? Do you still see the weak discharge or abnormal discharge...
  • Page 58 Trouble Shooting 8 Not Even Weak Discharge Check Start Is Power B/D working? Does it Replace the Power B/D make normal sound? Replace Y-SUS, Z-SUS, Is the set correctly working? and Scan B/D Done 9 Particular Input Signal (Video, PC, TV, or Component) Does Not Work Check Start Is the input Jack correctly Connect the input correctly...
  • Page 59 Trouble Shooting 10 Others A) Set Is Making Unusual Noise Check the connection of Power PCB and Module. If they are OK, replace the Power PCB and check the symptom again. B) Occasionally, the set does not operate normally. Turning off and on the AC power make the set to operate normal again Upgrade the software first.

  • Page 60: Assembly List

    24 4855553900 DECO SENSOR 25 5PZCAT3035 FILTER EMI ZCAT3035-1330 26 5PZCA2009A FILTER EMI ZCAT2035-0930A 27 PTFEPWG089 FILTER EMI AS DPP-42A1LASB 28 4853823100 FRAME HORIZENTAL SECC T1.6 29 4851C02800 FRAME SUPPORT L AS 38232+38234 30 4851C02900 FRAME SUPPORT R AS 38233+38234...
  • Page 61 MASK FRONT ABS GY 34 4850M10410 MODULE PDP PDP42V7 35 4850M10110 MODULE POWER 1H217WA 36 PTMPMSG089 PCB MAIN MANUAL AS DPP-42A1LASB 37 PTSBMSG089 PCB SUB MANUAL AS DPP-42A1LASB 38 485A106070 SHIELDRON (5 AND 3)X85X1T(ANGLE) 39 485A106270 SHIELDRON 41X53X18T 40 48A8310000...

  • Page 62: Structure Of Pdp Set

    13. STRUCTURE OF PDP SET -61-...
  • Page 63 STRUCTURE OF PDP SET COMPONENT PICTURE REMARK 1). PDP MODULE (With F/SUPPORT) 1a). Y-SUS B/D 1b). Z-SUS B/D -62-...

  • Page 64: Structure Of Pdp Set

    STRUCTURE OF PDP SET COMPONENTS PICTURE REMARK 1d) Data Relay PKG(L) 1e) Data Relay PKG(R) 1f) Scan Relay PKG-T 1g) Scan Relay PKG-B -63-...
  • Page 65 STRUCTURE OF PDP SET COMPONENT PICTURE REMARK 1h) Digital 2) MAIN BOARD 3) SUB BOARD 4) POWER BOARD -64-...
  • Page 66 STRUCTURE OF PDP SET COMPONENTS PICTURE REMARK 5) FRONT MASK 6) FILTER GLASS 7) BACK COVER -65-...
  • Page 68 DAEWOO ELECTRONICS CORP. 686, AHYEON-DONG, MAPO-GU, SEOUL, KOREA. C.P.O. BOX 8003 SEOUL KOREA PRINTED DATE : Nov. 2005...

  • Page 69: Pdp Module

    PDP MODULE SERVICE MANUAL MODEL : PDP42V7#### CAUTION 1. BEFORE SERVICING THE PDP MODULE, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. 2. WHEN REPLACEMENT PARTS ARE REQUIRED, BE SURE TO USE REPLACEMENT PARTS SPECIFIED BY THE MANUFACTURER.
  • Page 70 [PDP42V7#### Module] CONTENTS Ⅰ. Safety Precautions/Technical Feature Ⅱ. Formation and Specification of Module Ⅲ. Adjustment Ⅳ. Trouble Shooting 1. Checking for No Picture 2. Hitch Diagnosis Following Display Condition 2-1. All or 1/2 of the screen doesn’t be shown 2-2. Screen doesn’t be shown as Data TCP 2-3.

  • Page 71: Ⅰ. Safety Precautions/Technical Feature

    Ⅰ. Safety Precautions/Technical Feature 1. Safety Precautions (9) If the power cable is damaged, or if the connector is loose, do not use the product: otherwise, this can lead to fire or When servicing of PDP Module, it should be not enforced into electric shock.
  • Page 72 (10) In order to protect static electricity due to C-MOS circuitry of (21) This product has a glass display surface. Design your the Drive part, wear a wrist band to protect static electricity system so that excessive shock and load are not applied to when handling.
  • Page 73 2. Technical Feature PDP Module is a display device to be divided into a Panel part and a Drive part. The Panel part consists of Electrodes, Phosphor, various dielectrics and gas, and the Drive part includes electronic circuitry and PCB. PDP42V7#### model produced in the LG electronic is 42inches color Plasma display module of WVGA(852(H)x480(V)), and it is a display device giving concrete to bright image by using AC Plasma technology of LG electronic.

  • Page 74: Ⅱ. Formation And Specification Of Module

    Ⅱ. Formation and Specification of Module Connector Input Voltage & Signal P1[Z SUS B/D] 5V, Va, Vs P5[Y SUS B/D] P6[Y SUS B/D] P9[CTRL B/D] Control Signal Part No. Description 6871QCH053A PWB(PCB) ASS’Y LVDS CTRL B/D ASS’Y 6871QCH073A PWB(PCB) ASS’Y HITACHI COPPER LVDS CTRL B/D ASS’Y 6871QCH053B PWB(PCB) ASS’Y...
  • Page 75 Ⅲ. Adjustment 1. Application Object 3-2. Connection diagram of measuring This standard is applied to the PDP42V7#### PDP Module instrument and setting up the initial which is manufactured by the manufacturing team of PDP voltage promotion department or elsewhere. (1) For connection diagram of measuring instrument, refer to Fig.
  • Page 76 DC Power Supply for 5V DC Power Supply for Va Power DC Power Supply for Vs Signal Generator(VG-825) <Caution> (1) The power of the signal generator should be turned on before turning on the power of DC power supply. (2) The voltage of DC power supply , in standard of Module input voltage, should be preset as below. Vcc: 5V, Va: 65V, Vs: 187V (3) The power of power supply must turned on by this sequence.

  • Page 77: Ⅳ. Trouble Shooting

    Ⅳ. Trouble Shooting 1. Checking for no Picture A screen doesn’t display at all and condition of black pattern or power off. (1) Check whether the CTRL B/D LED(D1, D2, D3, D4, D5) is turned on or not. (2) Check the power and signal cable of CTRL B/D. (3) X B/D, Y B/D, Z B/D is well plugged in.
  • Page 78 Y B/D Output wave(1SF) Z B/D Output wave(1SF) X B/D Output wave(1frame): Va measurement - 10 -...

  • Page 79: Hitch Diagnosis Following Display Condition

    2. Hitch Diagnosis Following Display Condition 2-2. The screen doesn’t be shown as Data 2-1. All or 1/2 of the screen doesn’t be shown (1) In case of all of the screen doesn’t be shown, Confirm the (Include not be shown part of DataTCP quantity or a part) 8pin connection of X B/D to Z B/D is well plugged in which is correspond (1) The problem between Data TCP and X B/D is more...

  • Page 80: Regular Stripe Is Generated About The Quantity Of One Data Tcp Ic Or More

    2-3. It Generates Unusual Pattern of Data 2-4. Regular Stripe is Generated about the TCP IC unit Quantity of one Data TCP IC or more (1) In case of generating unusual pattern of Data TCP IC unit (1) In case of generating regular stripe about the quantity of one as below picture, there is problem in the Signal(CLK, data, Data TCP IC or more, check the connection of connector or STB) or connector that is input into Data TCP IC...
  • Page 81 2-5. The screen display has a problem for 2-6. The screen has a vertical line with Scan FPC. regular gap. (A vertical stripe flash at especial color) (1) It’s may be a problem between Scan FPC and Y DRV B/D. (2) Check the connection of Y DRV B/D and Scan FPC.
  • Page 82 2-8. The screen has one or several vertical 2-11. The screen displays other color line partially on full white screen or happens discharge partially on full black screen. (1) In this case, It isn’t a problem about CTRL B/D or X B/D. (2) It may cause followings.

  • Page 83: Checking For Component Damage

    3. Checking for Component Damage 3-3. FET Ass’y(Y B/D: HS1) Damage 3-1. Y IPM(IC 15) or Z IPM(IC 2) Damage (1) When Set_Up FET is damaged, screen doesn’t be shown (1) When the internal Sustain_IGBT or ER_FET of Y IPM(IC Test Point: Enlarge the after measuring GND~B32(Y B/D) 15) or Z IPM(IC 2) is damaged, VS FUSE is open and Wave format: Set_up waveform does not come out.

  • Page 84: Scan Ic(Y Drv B/D: Ic1~8) Damage

    3-4. SCAN IC(Y DRV B/D: IC1~8) Damage (4) In case of shorting the SCAN IC output by a dust, foreign substance, it may overlap two horizontal lines on screen. Test Point: ICT measurance of GND~Y DRV B/D output (1) In case of SCAN IC poor, one horizontal line may open at Wave format: As shown below figure.

  • Page 85: Tcp Damage

    3-5. TCP Damage 3-6. Crystal(CTRL B/D: X1) Damage (1) In case of shorting or opening the IC output of TCP, it may (1) When Crystal is damage, the screen doesn’t be shown. show one or several vertical lines. Test Point: Measuring 3pin of GND~Crystal(CTRL B/D: Test Point: Enlarge the after measuring output TP of GND~TCP Wave format: Output wave doesn’t come out...

  • Page 86: Shift Breakdown Component Compatibility Consideration

    4. Shift breakdown component compatibility consideration 4-1. Scan IC follows in application, compatibility of Y DRV Top, Bottom B/D (1) When B/D applicated FD3284F is breakdown, you must mutually only replace Top B/D and Bottom B/D applicated FD3284F. (2) When IC of B/D applicated FD3284F IC is breakdown, you must only replace FD3284F IC.

  • Page 87: Ⅴ. Block Diagram

    Ⅴ. Block Diagram DC Power Supply for 5V DC Power Supply for Va DC Power Supply for Vs - 19 -...

  • Page 88: Ⅵ. Safety Components List

    Ⅵ. Safety Components List (1) The safety components list of PDP42V7#### Model is as below. (2) A component of mark is important to keep product’s security. Therefore in exchanging a component, appointed component is necessary used. is an abbreviated word which is instead of <Safety>mark. - 20 -...
  • Page 89 - 21 -...

  • Page 90: Ⅶ. Records Of Revision For Boards, Components And Rom Data

    Ⅶ. Records of Revision for Boards, components and ROM DATA 1. Boards Date Board Part Number Note 2005.03.04 LVDS CTRL B/D ASS’Y 6871QCH053A Initial Product 2005.03.04 HITACHI COPPER LVDS CTRL B/D ASS’Y 6871QCH073A Initial Product 2005.03.04 LVDS OUTER SIDE CTRL B/D ASS’Y 6871QCH053B Initial Product 2005.03.04...
  • Page 91 2. COMPONENTS Date COMPONENT Part Number Remark 2005.03.04 Y IPM(YSUS B/D: IC15) 4921QP1031A Initial Product 2005.03.04 Z IPM(ZSUS B/D: IC2) 4921QP1031A Initial Product 2005.03.04 SCAN IC(YDRV B/D: IC1~8) 0ILNRFE001A Initial Product 2005.03.04 0ILNRD1002A Initial Product 2005.03.04 FET(Y B/D: HS1) 4921QF2007A Initial Product (Set_up/Set_dn FET Ass’...
  • Page 92 3. ROM DATA Date ROM Data Version Contents 2005.03.04 42V73DN03 Inner Type LVDS Initial ROM Data 2005.03.04 42V73LV03 External Type LVDS Initial ROM Data - 24 -...
  • Page 93 March, 2005 3828VD0143R Printed in Korea...

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