THOMSON 50WB03P Service Manual
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THOMSON 50WB03P Service Manual

THOMSON 50WB03P Service Manual

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SERVICE MANUAL
DOCUMENTATION TECHNIQUE
TECHNISCHE DOKUMENTATION
DOCUMENTAZIONE TECNICA
DOCUMENTACION TECNICA
WARNING : Before servicing this chassis please read the safety recommendations.
ATTENTION : Avant toute intervention sur ce châssis, lire les recommandations de sécurité.
ACHTUNG : Vor jedem Eingriff auf diesem Chassis, die Sicherheitsvorschriften lesen.
ATTENZIONE : Prima di intervenire sullo chassis, leggere le norme di sicurezza.
IMPORTANTE : Antes de cualquier intervención, leer las recomendaciones de seguridad.
- 0903
No copying, translation, modification on other use authorized. All rights reserved worldwide. • Tous droits de reproduction, de traduction, d'adaptation et d'exécution réservés pour tous les pays. • Sämtliche Urheberrechte an diesen Texten und Zeichnunge n stehen uns zu. Nachdrucke,
Vervielfältigungen - auch auszugsweise - nur mit unserer vorherigen Zustimmung zulässig. Alle Rechte vorbehalten. • I diritti di riproduzione, di traduzione, e esecuzione sono riservati per tutti i paesi. • Derechos de reproduccion, de traduccion, de adaptacion y de ejecucion reservados para todos los paises.
T V
50WB03P
Plasma

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Summary of Contents for THOMSON 50WB03P

  • Page 1 SERVICE MANUAL DOCUMENTATION TECHNIQUE 50WB03P TECHNISCHE DOKUMENTATION DOCUMENTAZIONE TECNICA DOCUMENTACION TECNICA Plasma WARNING : Before servicing this chassis please read the safety recommendations. ATTENTION : Avant toute intervention sur ce châssis, lire les recommandations de sécurité. ACHTUNG : Vor jedem Eingriff auf diesem Chassis, die Sicherheitsvorschriften lesen.
  • Page 2 Do not disconnect modules when they are energized! Repairs on power supply section are to be carried out only with isolating transformer. Ne pas retirer les modules lorsqu' ils sont sous tension. N'effectuer les travaux de maintenance sur la partie reliée au secteur (Switch Mode) qu'au travers d'un transformateur d'isolement.

  • Page 3: Table Of Contents

    CONTENTS Page SAFETY INFORMATION ............4 DISASSEMBLING THE MODULES Removing the SW Power Supply .

  • Page 4: Safety Information

    SAFETY PRECAUTIONS NOTICE: Comply with all cautions and safety related notes located on or inside the cabinet and on the chassis. The following precautions should be observed: 1. When service is required, even though the PDP UNIT an isolation transformer should be inserted between the power line and the set in safety before any service is performed.
  • Page 5 Charged Section The places where the commercial AC power is used without passing through the power supply transformer. If the places are touched, there is a risk of electric shock. In addition, the measuring equipment can be damaged if it is connected to the GND of the charged section and the GND of the non-charged section while connecting the set directly to the commercial AC power supply.

  • Page 6: Removing The Sw Power Supply

    DISASSEMBLING THE MODULES SW Power Supply Module 1 Remove the Rear Case (50M). (Screws x 20) fig. 1 2 Remove the four screws. fig. 2 3 Remove the SW Power Supply Module. fig. 2 4 Insert the SW Power Supply Module into the slits of Sub Frame L and R. fig.

  • Page 7: Removing The Digital Video

    DIGITAL VIDEO Assembly 1 Remove the Rear Case (50M). (Screws x 20) fig. 1 2 Remove the SW Power Supply Module. (Connectors, Screws x 4) fig. 2 and fig. 3 3 Remove the 11 screws. fig. 4 4 Remove the one screw. fig.

  • Page 8: Removing The Y Drive

    Y DRIVE Assembly 1 Remove the three screws. fig. 8 2 Loosen the Rivet. fig. 8 3 Remove the Lead Cover. fig. 8 Front Case 50 4 Pull out the Flexible Cable. fig. 8 5 Detach the lower part of the Front Case 50 so that it can swing open hinged at the top. fig.

  • Page 9: Board Location

    BOARD LOCATION CLAMP A Assy ADR CONNECT A Assy DIGITAL VIDEO Assy BRIDGE A Assy ADR CONNECT B SENSOR Assy SUB ADDRESS A Assy Assy ADR RESONANCE Assy SCAN (A) Assy ADR CONNECT C Assy Y DRIVE SW POWER SUPPLY BRIDGE B Assy Module...

  • Page 10: Diagnostic

    DIAGNOSTIC Normal status LED STATUS COMMENTS This indicator is red during standby mode GREEN This indicator turns to green when the unit is in the FEB mode. ORANGE This indicator turns to green when the unit is in the STAND-ALONE mode. Slowly flashes GREEN Power-Management function is operating.

  • Page 11: Hdcp Protection

    (Ex.: 1st -> Y-DC/DC CONVERTOR, 2nd -> Y-DRIVE) lighting Blank lighting lighting Blank 1s 200ms 100ms 200ms 200ms Blank 3s Update status This is in the special state about update of a firmware. LED STATUS COMMENTS Updating standby or updating end of the Main microcomputer Slowly flashes Or updating end of the Main microcomputer GREEN and RED...
  • Page 12 Detection in protection mode The structure of three detections was prepared. a. Opening of a Rear case is detected by mechanical switch. b. Simple logic via a connector. c. It is necessary to control IC by I2C from MAIN microcomputer. Detection of B and C is for not operating SLOT independently.

  • Page 13: Block Diagram

    BLOCK DIAGRAM GENERAL BLOCK DIAGRAM DRIVER DRIVER DRIVER DRIVER DRIVER DRIVER DRIVER DRIVER DRIVER DRIVER DRIVER DRIVER DRIVER DRIVER DRIVER DRIVER DRIVER DRIVER DRIVER DRIVER DRIVER DRIVER DRIVER DRIVER DRIVER DRIVER DRIVER DRIVER DRIVER DRIVER DRIVER DRIVER DRIVER DRIVER DRIVER DRIVER DRIVER DRIVER...

  • Page 14: Rgb

    RGB BLOCK DIAGRAM IC5102 DIGITAL VIDEO SD RAM SD RAM (PE5066ACK) RGB ASSY SD RAM ASSY IC101 100MHz X'tal SD RAM VCLK(132) DEO(99) RA[0:9]RB[0:9] HDO(98) GA[0:9]GB[0:9] VDO(97) MCLKI(242) BA[0:9]BB[0:9] IC31 RAO[0:7]RBO[0:7] CLKOUT(88) (1/2) GAO[0:7]GBO[0:7] RAI[0:7]RBI[0:7] DEO(92) (LCX541) BAO[0:7]BBO[0:7] GAI[0:7]GBI[0:7] HDO(91) VD Shift BAI[0:7]BBI[0:7] OSDH(62)

  • Page 15: Digital Video

    DIGITAL VIDEO BLOCK DIAGRAM RGB ASSY DIGITAL VIDEO ASSY 3.3V 2.5V 3.3V IC1301 (IC31 L) (PD6358) Address Data RGB 2 phase 10 bit DRAM ADR CONNECT A - D Assy (Left section) Line IC5301 Buffer (PD6357) IC30 IC1401 (IC31 R) (PD6358) Address Data Address BUS...

  • Page 16: Drive

    X DRIVE BLOCK DIAGRAM K3105 SUSOUT A Q3103, Q3104, Q3105, Q3106, X DRIVE Q3107 Q3109 Q3124 Q3125 37-40 29,30 K3107 PSUS IC3200 STK795-470 Pulse Module IC3103,IC3104 TND301S IC3008 TC74ACT541FT CN3001 K3106 SUSOUT B XNR_U Q3110, Q3111, Q3112, Q3113, Q3114 Q3115 Q3126 Q3127 37-40...

  • Page 17: Y Drive

    Y DRIVE BLOCK DIAGRAM IC5V IC2504 Photo Coupler TC74ACT540FT Photo Coupler Photo Coupler OC2-1 To SCAN ASSY Photo Coupler (Lower) Photo Coupler Photo Coupler Photo Coupler Photo Coupler IC2501,IC2502, IC2001 IC2505,IC2510, TC74ACT541FT IC2512,IC2513, IC2514,IC2525, VSUS HCPL-M611 To SCAN ASSY Q2204 (Upper) YPR-U1 IC2506...

  • Page 18: Audio

    AUDIO BLOCK DIAGRAM TMM AUDIO ASS'Y +15V +5V_AD/RGB Vout (5.5V - 12.35V) FAN_D IC8701 FAN_P FAN_Mute REGULATOR Vadj +5V_AD/RGB ( < 3.4V ) +5V_AD/RGB (3.06V - 1.66V) OP-AMP(Buf) FAN_D FAN_N FAN_P TEMP3 +5V_AD/RGB AUDIO_NG FAN DRIVE BLOCK +15V IC8602 IC8601 REGULATOR POWER AMP +5VSTB...

  • Page 19: Sub Address

    SUB ADDRESS DIAGRAM SUB ADDRESS ASSEMBLY CN8801 +60V Current - Voltage Over Current DET. Block Convert Block ADRGND R8801 - R8805 Q8801 H : V MID CLAMP OFF L : V MID CLAMP ON ADR Output P.D. Output Block Resistance Load Block V MID SW ADRK EMG1 Q8803, Q8831...

  • Page 20: Adr Resonnance

    ADR RESONNANCE BLOCK DIAGRAM ADR RESONNANCE +60V +60V +60V ICP-S1, 0 +60V CN6702 IC6704 C6703 - C6708 CN6701 Address Resonance Output Block ADROUT ADRGND ADR-B ADR B ADR-B Pre-Drive VADR Drive C6720 Q6706 DGND Q6707 +12V IC6701 Q6701, Q6704 ADR U ADR-B C6721 Q6708...

  • Page 21: Signal Path

    SIGNAL PATH VIDEO AND SYNCHRONISATION Signal Route INPUT Input Signal VIDEO Signal IC4108 IC4403 IC4402 IC4603 IC5001 IC5301 BA7657F 6M LPF CXA2101AQ CXA3516R PE5067A-K PD6357B (480i) VIDEO Signal IC4108 IC4402 IC4603 IC5001 IC5301 BA7657F CXA2101AQ CXA3516R PE5067A-K PD6357B (except 480i) IC4108 IC4603 IC5001...

  • Page 22: Video Slot

    VIDEO SLOT Rear Case opening detection AUDIO ANALOG OUTPUT OUTPUT (YCBR/RGB) IN5DET I2C BUS EXPANDER WP SW DVI SEL 2-1SELECT V/Y SEL BA7657 3D RST 3cH Gain AMP LPF IC SM5301AS M61303 CBR ADJ Reg cont SHELD Chroma Decode LOGIC CONV 3D Y/C (SA:B8/B9)

  • Page 23: Adjusting Modes

    If it puts into service mode, a display will come out to the upper left, “SERVICE MODE”(SERVICE MENU). Operation of a service menu can be performed by the remote control that outputs the Thomson code. And the body key can operate it also.
  • Page 24 PICTURE Picture Item A sub menu is displayed when the following item is chosen. The center value INPUT Item Adjustment range of shipment *1 CONTRAST BRIGHT. H.ENHANCE V.ENHANCE CONTRAST BRIGHT. COLOR TINT H.SHARP V.SHARP *1 It is a value peculiar to a product which has variation by adjustment. In a sub menu, change of an item is possible by UP or DOWN key.
  • Page 25 WHITE BALANCE (WHITE BAL.) White Balance Item A sub menu is displayed when the following item is chosen. Item Adjustment range The center value of shipment *1 R HIGH G HIGH B HIGH R LOW G LOW B LOW *1 It is a value peculiar to a product that has variation by adjustment. Picture Default Selecting “DEFAULT”...
  • Page 26 Signal Item Adjustment range Default value H.POSITION V.POSITION CLOCK PHASE V.SIZE V.SIZE Screen Default Selecting “DEFAULT” by LEFT, RIGHT or OK key press display following menu If a highlight is moved to "YES", the quality of image is reset in shipping condition. It is memorized by "O.K." OPTION It is moved highlight by UP or DOWN key press.
  • Page 27 Side Mask It is brightness adjustment of a non-drawing part. It is at the time of the screen size “DOT BY DOT” and “4:3”. It can be adjusted independently, R, G, B. Item Adjustment range Default value R(ed).LEVEL G(reen).LEVEL B(lue).LEVEL The default of a side mask differs from others.
  • Page 28 Hour Meter The time when the total operated is counted. This item counts the drive time of a panel. The unit of drive time is 1 hour. It can display for a maximum of 99999 hours. At the time of factory shipments, it is 0H. Version The version of a firmware is displayed.
  • Page 29 Baud Rate 9600 bps (standard) (Switchable to 1200, 2400, 9600, 19200, 38400 bps) Data Format Start: 1-bit Data: 8-bit Parity: ODD Stop: 1-bit *Therefore, PC and PDP are connected with a straight cable. Protocol From computer to plasma display: (1) When transmitting commands individually STX (02 hex)+ ID (2 Byte)+ COMMAND (3 Byte)+ ETX (03 hex) (2) When transmitting commands in batches (up to max.
  • Page 30 Command Full RS-232C Factory Normal Numerical Up/Down Function Name Name adjustment adjustment validity direct validity validity validity validity ABL MODE0 ABL MODE1 ABL MODE2 ABL MODE3 ADJUST (SERVICE) NO Terminates RS-232C adjustment (service) mode ADJUST (SERVICE) YES Initiates RS-232C adjustment (service) mode AUDIO MUTE NO Turns audio mute OFF AUDIO MUTE YES...
  • Page 31 Command Full RS-232C Factory Normal Numerical Up/Down Function Name Name adjustment adjustment validity direct validity validity validity validity Mask Control No Releases automatic mask position control setting Mask Control Yes Applies automatic mask position control setting Video Mute No Turns video mute OFF. Video Mute Yes Turns video mute ON.
  • Page 32 Command Full RS-232C Factory Normal Numerical Up/Down Function Name Name adjustment adjustment validity direct validity validity validity validity Panel Blue High Adjusts BLUE HIGH-LIGHT Panel Blue Low Adjusts BLUE LOW-LIGHT Pc RGB Yes Sets input setting to 4.3 (SETTING:VGA or XGA) Panel Green High Adjusts GREEN HIGH-LIGHT Panel Green Low...
  • Page 33 GET commands What are GET commands? - They are commands used for TXD output of adjustment data and the like from the plasma display’s built-in microcomputer to a personal computer. - Adjustment data, etc., is output in ASCII code. NOTE: Command names are given inside brackets < >. - Data output format NOTE: STX (02hex) Data Data ····...
  • Page 34 <GSS> (GET STATUS SET UP) Set data for SET UP will be output as follows. Order Data Size Output Remarks COLOR TEMP 1byte 1: COLOR TEMP1 2: COLOR TEMP2 3: COLOR TEMP3 4: COLOR TEMP4 5: COLOR TEMP5 (NOTE) DIGITAL NR 1byte 0: OFF, 1: LOW 2: MIDDLE, 3: HIGH...
  • Page 35 <GSO> (GET STATUS OPTION) Set data for OPTION will be output as follows. Order Data Size Output Remarks 3byte 1byte FULL MASK 3byte Same as RS-232C command R SIDE MASK LEVEL 3byte Adjustment value G SIDE MASK LEVEL 3byte Adjustment value B SIDE MASK LEVEL 3byte Adjustment value...

  • Page 36: Adjustments Required After Modules Replacement

    ADJUSTMENT REQUIRED WHEN THE SET IS REPLACED RGB Assembly Colour balance adjustment DIGITAL VIDEO Assembly 1. Adjustment is unnecessary when only the DIGITAL VIDEO Assembly is replaced. 2. When the RGB Assembly is replaced at the same time as this assembly, remove the IC1204 (24LC04(1) SN-TBB) from the old PC board of the DIGITAL VIDEO Assembly and attach it to the new PC board.

  • Page 37: Adjustments

    ADJUSTMENTS V-SUS adjustment 1. Turn on the unit. 2. Enter Factory mode. 3. Set the V-SUS value to that indicated on the Panel Identification label. VSU (Value indicated on the Panel Identification label) 4. Check the V-SUS adjustment value. GAJ: To read the V-SUS value from the output data 5.
  • Page 38 PRHxxx Adjust the parameters so that the PGHxxx values of the left and right windows PBHxxx become those shown in the table below. PRLxxx (xxx : 0 to 255) PBLxxx PGLxxx GPW Check that each parameter is properly set. 3. Turn off the unit. Reference : Adjustment values when using the Minolta color-difference meter (CA-100) MASK Left Side MASK Right Side...
  • Page 39 Dopravaku - dum Genius 1 Tel. : 01 41 86 60 00 Dolni Chabry Minitel : 3616 ou 3623 TCEDS CZ - 18400 Prague 8 Internet : http://www.thomson.fr Tel. : (2) 688 67 70 Thomson multimedia Hungary KFT Lajos u. 78. II.em.

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