Sony FWD-42PX2 Service Manual

Flat panel display
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FLAT PANEL DISPLAY
FWD-42PX2
REMOTE COMMANDER
RM-980
SPEAKER SYSTEM
SS-SP42FW
SERVICE MANUAL
1st Edition

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Table of Contents
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Summary of Contents for Sony FWD-42PX2

  • Page 1 FLAT PANEL DISPLAY FWD-42PX2 REMOTE COMMANDER RM-980 SPEAKER SYSTEM SS-SP42FW SERVICE MANUAL 1st Edition...
  • Page 2 Ce manual est destiné uniquement aux personnes compétentes en charge de l’entretien. Afin de réduire les risques de décharge électrique, d’incendie ou de blessure n’effectuer que les réparations indiquées dans le mode d’emploi à moins d’être qualifié pour en effectuer d’autres. Pour toute réparation faire appel à une personne compétente uniquement. FWD-42PX2...
  • Page 3 Gerät abschaltet und signalisiert “Batterie leer” oder nach längerer Gebrauchsdauer der Batterien “nicht mehr einwandfrei funktioniert”. Um sicherzugehen, kleben Sie die Batteriepole z.B. mit einem Klebestreifen ab oder geben Sie die Batterien einzeln in einen Plastikbeutel. 1 (P) FWD-42PX2...
  • Page 5: Table Of Contents

    Initialization ............2-3 2-2-2. AD Calibration ............2-3 2-2-3. 1PC Signal ............. 2-3 2-2-4. White Balance ............2-3 2-3. Va/Vs Voltage Adjustment ..........2-4 2-3-1. Required Equipment ..........2-4 2-3-2. Vs Voltage Adjustment ......... 2-4 2-3-3. Va Voltage Adjustment ......... 2-4 FWD-42PX2...
  • Page 7: Service Overview

    1-1. Appearance Figure 1-2. Board Location I board TEMP board TEMP board BKM-FW10 L board G board Z-SUS board Y-SUS board H2 board TEMP board T-L board XR board A board CTRL board Y-DRV board XL board T-R board H1 board FWD-42PX2...
  • Page 8: Disassembly

    1-3-1. Rear Cabinet Assembly 7 Hold the two handles and remove the rear cabinet assembly. 6 Fourteen screws 1 Two panel securing 3 Four screws screws 4 Four knobs 2 BKM-FW10 5 Fourteen screws 8 Rear cabinet assembly Conductive cushion Upper side FWD-42PX2...
  • Page 9: Bezel Assembly/H1 Board/H2 Board

    9 Chassis assembly 1 Four screws 6 Control button 7 Four screws Portions A 8 Ten screws ![ Front frame assembly != Filter glass Conductive cushion Upper side 0 Harness !- Bezel assembly !] Two screws !\ H1 board FWD-42PX2...
  • Page 10: A Board/L Board/I Board

    9 A board Battery holder 3 Four screws !/ I board 4 Two screws 8 Four screws CN20 1 Four screws 9 A board 7 Interface cover 5 Six connector screws 6 Screw 2 L board Upper side Conductive cushion FWD-42PX2...
  • Page 11: G Board/Temp Board

    . Remove the rear cabinet assembly. (Refer to Section 1-3-1.) 7 Option shield plate 1 Three screws 5 Screw CN1304 8 Two screws 2 AC outlet cover CN1302 4 T-R board 9 T-L board 6 Screw 3 Two screws Conductive cushion Upper side FWD-42PX2...
  • Page 12: A Block Assembly/Dc Fan

    != Fan brackets 8 Fan bracket Upper side !' Two screws Conductive cushion !, DC fan !\ Screw !; Fan bracket DC fan installation direction Make sure that the label is oriented in the upward direction of the main unit. FWD-42PX2...
  • Page 13: Y-Drv Board/Y-Sus Board

    . Remove the bezel assembly. (Refer to Section 1-3-2.) 6 Six screws 5 Three screws 7 Y-DRV board 8 Y-SUS board 1 Two screws P152 2 Speaker bracket support Upper side 3 Two screws Conductive cushion 4 Speaker bracket support FWD-42PX2...
  • Page 14: Ctrl Board

    4 CTRL board Upper side Conductive cushion 1-3-9. Z-SUS Board . Remove the rear cabinet assembly. (Refer to Section 1-3-1.) . Remove the bezel assembly. (Refer to Section 1-3-2.) 1 Five screws 2 Z-SUS board Upper side Conductive cushion FWD-42PX2...
  • Page 15: Xl Board/Xr Board

    9 XR board 4 Six screws 6 Six screws P210 7 XL board 3 Seven 5 Flexible retainer screws Upper side P101 P102 P103 P104 P105 P106 P107 P108 P201 P202 P203 P204 P205 P206 P207 Conductive cushion P208 FWD-42PX2...
  • Page 16: Plasma Display Panel

    9 Five covers !/ Five screws !- G board bracket 7 Four screws 3 Two screws 8 Speaker bracket supports 4 AC socket 5 Screw support 6 Bracket 1 Screw != Plasma display panel 2 Bracket Upper side Conductive cushion 1-10 FWD-42PX2...
  • Page 17: Service Position

    . When assembling the service position, be sure to repair after removing the rear cabinet. A board Unit 1 Knobs 2 Four screws Insert the four knobs into the holes of stands. 1 Knobs Unit Stands Unit Stands 1-11 FWD-42PX2...
  • Page 18: Packing Of The Plasma Display Panel

    5 Protection plate for outer box Rear 3 Inner box (front) 2 Protection plate for inner box 4 Inner box (rear) 5 Protection plate for outer box 2 Protection plate for inner box 1 PDP module 6 Palette 1-12 FWD-42PX2...
  • Page 19: Label Information Of Module

    HAZARD VOLTAGE. HOT PART CAN BE BURN. MECHANICAL HAZARD. WOUND VOLTAGE SURFACE DO NOT TOUCH ELECTRIC POINT. DO NOT TOUCH ELECTRIC PART. DO NOT TOUCH POINTED PART. 1 Warning (High Voltage) 2 Warning (Hot Surface) 3 Caution (Mechanical Hazard) 1-13 FWD-42PX2...
  • Page 20: Voltage Label

    Max Amps:4.5A/2.0A/1.5A LG Electronics Inc. . Model Name . Max. Watt (Full White) . Max. Volts . Max. Amps . The Trade Name of LG Electronics . TUV Approval Mark . UL Approval Mark . UL Approval No. 1-14 FWD-42PX2...
  • Page 21: Warning On Power Connection

    . The ordinary soldering iron can be used but the iron tip has to be applied to the solder joint for a slightly longer time. The printed pattern (copper foil) may peel away if the heated tip is applied for too long, so be careful. 1-15 FWD-42PX2...
  • Page 23: Service Mode And Adjustment

    . FAN ON/OFF . CONTRAST-R . BRIGHT-B . INIT GOODS . CONTRAST-G . CLOCK . CONTRAST-B . PHASE FOR SONY . BRIGHT-R . AUTO . S-INIT GOOD . BRIGHT-G . FAN FOR TEST . SELECT RS232 MAIN AD CALIBRATION . PC.CUTOFF .
  • Page 24: Description Of Main Items

    RS-232C. COM port If INT GOODS is run, this is set to SONY. Personal computer SONY: This is for user to control the set by using RS-232C as Cable connection remote controller. This is for setting white balance.
  • Page 25: White Balance Adjustment

    . Color analyzer (ex: CA1000) Shipment condition setting Signals Set up the shipment condition. If want to know detail timing. Refer to Sony Timing Spec. 1. Start the on service mode. . PC WXGA (1024 x 768@60 Hz) (Refer to Section 2-1-1.) .
  • Page 26: Va/Vs Voltage Adjustment

    1. Look at the label on the right upper side of PDP panel 2. Then turn the volume (1VR700) to be “Va Voltage” on the label. Check point: 10-pins (Y board) It is normally set in the range between 55 V and 65 V. 2, 3 pins 10-pin 1VR600 1VR700 FWD-42PX2...
  • Page 27: Required Equipment

    1. Perform the adjustment so that the following specification is satisfied. Adjustment point: R36 Specification: See below _Vy specification value Vsc specification value The above is a voltage label sample. Check the actual model for the actual specification value. adjustment volume _Vy adjustment volume measuring point _Vy measuring point FWD-42PX2...
  • Page 28: Flash Down-Loading Method

    “Shipping default condition”. * Execute EXCEPT WB in INITIALIZATION. * Execute COPY WB DATA in WB DEFAULT 4. Click the [Load] button, then select the file from the DATA. * Execute INIT GOODS in FOR TEST. designated folder. FWD-42PX2...
  • Page 29: Deviceinfo Section

    2-6. DEVICEINFO Section 1. Connect PC to PDP using the serial cable. 2. Set the port. (1) Select the model. (FWD-42PX2) (2) Select the port. (COM1, COM2, COM3 or COM4) The initial setting is COM1. 3. Click the [Read] button in “Model Name”.
  • Page 31: Troubleshooting

    → Replace the G board. Cause 2: If it is not, replace the A board. 5. Blinking red LED many times. 2. Abnormal sound Refer to Section 3-1. Cause 1: Replace the L board. FWD-42PX2...
  • Page 32: Plasma Display Panel

    CTRL, Vs voltage. 2. Vertical bar failure . Check all connectors. . Check peripheral circuit and connecting of the XR and XL boards. 3. Horizontal bar failure . Check all connectors. . Check peripheral circuit and connecting of the Y-DRV board. FWD-42PX2...
  • Page 33: Image Trouble

    Is the Y-SUS board abnormal? Replace the Y-SUS board. After replacing the Y-SUS board, perform (Refer to Sections 3-3-2 and the following adjustments. 3-8.) . Vsc Adjustment (Refer to Section 2-4.) . _Vy Adjustment (Refer to Section 2-4.) Replace the Z-SUS board. FWD-42PX2...
  • Page 34: Power (G Board) Trouble

    . 5 Vst (Stand by 5 V, 3, 4-pins of CN9 on the A board): . AC-DET (1-pin of CN9 on the A board): . Re-on (Rely-on switching signal, pin-2 of CN9 on the A board): High 1 V . Vs-on (Vs-on signal, pin-7 of CN9 on the A board): High 1 V FWD-42PX2...
  • Page 35: Remote Control Trouble

    Replace the A board. After replacing the A board, perform the following adjustments. . AD calibration adjustment (Refer to Section 2.) . White balance adjustment (Refer to Section 2.) . EDID data input . S-init Goods (Refer to Section 2.) FWD-42PX2...
  • Page 36: Other Trouble

    Replace the A board. After replacing the A board, perform the following adjustments. . AD calibration adjustment (Refer to Section 2.) . White balance adjustment (Refer to Section 2.) . EDID data input . S-init Goods (Refer to Section 2.) FWD-42PX2...
  • Page 37: Plasma Display Panel

    After replacing the plasma display panel, perform the following adjustments. Replace the plasma display panel. . Va Voltage Adjustment (Refer to Section 2-3.) . Vs Voltage Adjustment (Refer to Section 2-3.) . AD calibration adjustment (Refer to Section 2.) FWD-42PX2 . White balance adjustment (Refer to Section 2.)
  • Page 38: Vertical Image Is Abnormal

    After replacing the plasma display panel, perform panel. the following adjustments. . Va Voltage Adjustment (Refer to Section 2-3.) . Vs Voltage Adjustment (Refer to Section 2-3.) . AD calibration adjustment (Refer to Section 2.) . White balance adjustment (Refer to Section 2.) FWD-42PX2...
  • Page 39: Horizontal Image Is Abnormal

    When the replacement of those parts is required, replace them in the assembly unit. After replacing the Y-SUS board, perform Replace the Y-DRV, Y-SUS, the following adjustments. or CTRL board. . Vsc Adjustment (Refer to Section 2-4.) . _Vy Adjustment (Refer to Section 2-4.) FWD-42PX2...
  • Page 41: Spare Parts

    Therefore, specified parts should be used in the case of replacement. 2. Standardization of Parts Some repair parts supplied by Sony differ from those used for the unit. These are because of parts common- ality and improvement. Parts list has the present standardized repair parts.
  • Page 42: Exploded Views

    Screw Kit 4-2. Exploded Views 12 b FWD-42PX2...
  • Page 43 Screw Kit 19 20 Note : The screws can be ordered in units of screw kit. (Sony part No. 21 to 23) Part No. SP Description Part No. SP Description Part No. SP Description X-2055-059-1 s SCREW KIT (INSIDE) X-2055-060-1 s SCREW KIT (OUTSIDE)
  • Page 44 X-2024-229-1 s ASSY,FRONT FRAME X-2109-622-1 s BEZEL ASSY(SILVER) X-2109-625-1 s BEZEL ASSY(BLACK) X-2109-623-1 s REAR CABINET ASSY 1-789-198-11 s MOUNTED CIRCUIT BOARD, H2 1-789-199-11 s MOUNTED CIRCUIT BOARD, H1 2-159-847-01 s GLASS, FILTER 2-591-335-01 s BUTTON, CONTROL 2-591-336-01 s BRACKET, CONTROL BUTTON FWD-42PX2...
  • Page 45 1-789-200-11 s MOUNTED CIRCUIT BOARD, L 1-789-550-11 s MOUNTED CIRCUIT BOARD, A 1-789-553-11 s MOUNTED CIRCUIT BOARD, I 1-789-564-11 s MOUNTED CIRCUIT BOARD, T-R 1-789-565-11 s MOUNTED CIRCUIT BOARD, T-L 2-681-504-01 s COVER, INTERFACE 2-990-241-02 s HOLDER (A), PLUG 1-528-174-11 s LITHIUM BATTERY(CR2032) FWD-42PX2...
  • Page 46 1-789-556-11 s MOUNTED CIRCUIT BOARD, XR Y-SUS BOARD 1-789-557-11 s MOUNTED CIRCUIT BOARD, XL 1-789-558-11 s MOUNTED CIRCUIT BOARD, CTRL 1-576-231-51 s FUSE (Y SUS) 4A/250V 1-789-559-11 s MOUNTED CIRCUIT BOARD, Y-DRV 1-576-231-51 s FUSE (Y SUS) 4A/250V 1-802-143-11 s PLASMA DISPLAY PANEL FWD-42PX2...
  • Page 47 2-990-242-01 s HOLDER (B), PLUG 3-613-640-01 o PLUG,HOLDER C 3-674-673-01 o STOPPER (A) 4-101-214-01 s HOLDER, CABLE 4-101-219-01 s TRAY, BOTTOM 4-101-222-01 s CARTON, INSIDE 4-101-223-01 s BAG, PROTECTION 4-101-224-01 o ACCESSORY BOX ------------ CORD, POWER (See Sec.1-6. Warning on Power Connection) FWD-42PX2...
  • Page 48 A-1083-765-A s SPEAKER ASSY (42R) (RP) WHITE (FOR SS-SP42FW/W (PEARL WHITE)) A-1081-103-A s SPEAKER ASSY (42L) (RP) SILVER (FOR SS-SP42FW/S (SILVER)) A-1083-766-A s SPEAKER ASSY (42L) (RP) WHITE (FOR SS-SP42FW/W (PEARL WHITE)) 7-682-963-09 s SCREW +PSW 4X12(EP-FE/ZNBK/CM2) 7-685-661-14 s SCREW +BVTP4X12(EP-FE/CU,NI,CR) FWD-42PX2...
  • Page 49 1-910-012-56 o CONNECTOR ASSY AU 12P 1-910-012-57 o CONNECTOR ASSY RMT 8P 1-910-013-70 o CONNECTOR ASSY MAIN 10P 1-910-025-66 o CONNECTOR ASSY Y SUS 9P 1-910-025-67 o CONNECTOR ASSY AUDIO 4P . The numbers encircled by round corresponds to those of the left illustration. FWD-42PX2...
  • Page 51: Block Diagram

    DTV (729P and 1080i). This circuit is controlled in an IIC line using IC91. It converts the component signal from a D-Sub connector (CN10) and options 1 and 2 into a digital signal and outputs it to IC14. FWD-42PX2...
  • Page 52 FWD-42PX2...
  • Page 54 Printed in Japan Sony Corporation FWD-42PX2 (SY) E 2006. 5 22 9-834-111-01 ©2006...

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