Hitachi 55PMA550 Service Manual
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Hitachi 55PMA550 Service Manual

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SERVICE MANUAL

Be sure to read this manual before servicing. To assure safety from fi re, electric shock, injury, harmful radiation
and materials, various measures have been provided for in this HITACHI Plasma display service manual.
Be sure to read all cautionary items described in the manual to maintain safety before servicing.
1. Since the Panel Module and front Filter are made of glass, handle a broken Module and/or Filter with
sufficient care, in order not to be injured.
2. Repair work should not be started until after the Panel Module and the AC/DC Power supply have cooled
sufficiently.
3. Special care should be exercised in the proximity of the display area in order not to damage its surface.
4. The Panel Module should not be touched with bare hands, as this will protect its surface from stains.
5. It is recommended to use clean soft gloves during the repair work in order to protect not only the display
area of the Panel Module but also the technician.
6. The Chip Tube of the Panel Module (located in the upper left corner of the back of the glass panel)
is very fragile; as well, the flat cables connecting the Panel to the drive circuit PWBs are very weak. Take
care not to damage these, otherwise, the panel will never light again..
1. Features --------------------------------------------------3
2. Specifi cations--------------------------------------------4
3. Service point s -------------------------------------------5
4. Component names -------------------------------------6
5. New Technology ----------------------------------------7
6. Service Modes ---------------------------------------- 10
7. Troubleshooting --------------------------------------- 29
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT.
Caution
Service Warning
Contents

Plasma Display

July 2004 Digital Media Division
YK
55PMA550
55HDM71
8. Basic circuit diagram--------------------------------- 35
9. Printed wiring board diagram ---------------------- 42
10.Block diagram ----------------------------------------- 47
11.Connection diagram --------------------------------- 49
12.Wiring diagram -----------------------------------------50
13.Disassembly diagram-------------------------------- 52
14.Replacement parts list------------------------------- 55
15.DC Voltage Tables --------------------------------- 66
No.006E-1
(PW1)

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Summary of Contents for Hitachi 55PMA550

  • Page 1: Table Of Contents

    Be sure to read this manual before servicing. To assure safety from fi re, electric shock, injury, harmful radiation and materials, various measures have been provided for in this HITACHI Plasma display service manual. Be sure to read all cautionary items described in the manual to maintain safety before servicing.
  • Page 2 55PMA550/55HDM71 (PW1) CAUTION FOR SAFETY Please read this page before making repairs to the monitor. This page explains certain safety items found in this manual which are intended to ensure the safety of the technician and to prevent accidents during any repair work.

  • Page 3: Features

    55PMA550/55HDM71 (PW1) PRECAUTIONS ● How to clean the plasma panel screen (front glass) of the monitor - Before cleaning the monitor, turn off the monitor and disconnect the power plug from the power outlet. To prevent scratching or damaging the plasma screen face, do not wipe the surface with sharp or hard objects.

  • Page 4: Specifi Cations

    55PMA550/55HDM71 (PW1) 2. Specifications 55PMA550 55HDM71 Display Approx. 55 inches (1229 (H) x 691 (V) mm, diagonal 1410mm) dimensions Panel Resolution 1366 (H) x 768 (V) pixels Net dimensions 1394 (W) x 857 (H) x 105 (D) mm (excluding Speakers/Stand) Net weight 63.5kg...

  • Page 5: Service Point

    55PMA550/55HDM71 (PW1) 3. Service points Lead free solder This product uses lead free solder (unleaded) to help preserve the environment. Please read these instructions before attempting any soldering work. Caution: Always wear safety glasses to prevent fumes or molten solder from getting into the eyes. Lead free solder can splatter at high temperatures (600˚C).

  • Page 6: Component Names

    55PMA550/55HDM71 (PW1) 4. Component names [Main unit] Indicator Lamp Remote-control receiver Rear Label 1. SUB POWER 2. VOL 2. ADJ 3. VOL 3. ADJ 4. SIZE NOTE: 4. SELECT 1st number indicates normal button operation 5. RECALL 2nd number indicates function during MENU 5.

  • Page 7: New Technology

    55PMA550/55HDM71 (PW1) 5. New Technology [System control micom I001(M3062)] Pin function table Pin Name Function OSD_DATA OSD DATA OSD_CLK OSD CLOCK AC-CLOCK AC CLOCK FE.AGC_O AGC Voltage (F/E) DATA_OUT(FC) FC DATA DATA_IN(FC) FC DATA CLK(FC) FC CLOCK BYTE CNVSS CNVSS(FLASH)
  • Page 8 55PMA550/55HDM71 (PW1) Pin Name Function SCDT RESERVE : Always High-Impedance HS-DJTR Jitter Control (DVI) : Always Low AUD RST RESET for LIPSYNC IC AUD DET Detecting Connection of LIPSYNC IC (L: Yes, H: No) SPRLY SPEAKER ON/OFF Relay Control (L: ON(MUTE-OFF), H: OFF(MUTE-ON))

  • Page 9: Video Decoder

    µ-COMPUTER (M30625) AC-CLOCK TB4IN VIDEO.DET_1 DSUB COMP VIDEO.DET_2 RGB SW TUNER.DET_1 P51 P52 TUNER TYPE VIDEO TYPE Type *1 for ASIA F/E POWER_SAVE P101 TUNER.DET_2 ASIA AVC JOINT PWB *2 for US/CANADA F/E POWER_LED SWIVEL_DET EUROPE VIDEO PWB *3 for europe F/E US/CANADA RGB PWB *4 for ASIA...

  • Page 10: Service Modes

    55PMA550 / 55HDM71 (PW1) SERVICE MODE ACCESS BURN-IN MODE BURN-IN MODE When the Burn-in feature is turned ON, the plasma panel operates normally on all inputs that have a signal. On inputs that do not have a signal, the plasma panel displays a cycling single color test pattern (see below) which is generated internally.

  • Page 11: Demo Mode

    55PMA550 / 55HDM71 (PW1) SERVICE MODE ACCESS DEMO MODE DEMO MODE When the DEMO feature is turned ON, both the remote and the plasma panel front panel buttons (with the exception of the SUB POWER button) are non-operational. This can be useful for the Sales / Dealers to prevent anyone from playing with any of the settings.
  • Page 12 55PMA550 / 55HDM71 (PW1) SERVICE MODE ACCESS I2C ADJUSTMENT MODE C ADJUSTMENT MODE When the set is in the I2C Adjustment mode, use the cursor buttons for selecting the for changing the parameter’s value. Use the OK button to adjustment parameter, and confirm.

  • Page 13: Factory Reset

    55PMA550 / 55HDM71 (PW1) SERVICE MODE ACCESS FACTORY RESET FACTORY RESET Occasionally, it becomes necessary to perform a factory reset. This is different than the Memory Initialization, only customer settings are affected by Factory Reset. Rear Label 1. SUB POWER 2.
  • Page 14 55PMA550 / 55HDM71 (PW1) SERVICE MODE ACCESS DIAGNOSIS MODE DIAGNOSIS MODE This chassis has a limited self-diagnosis mode. When activated, the microprocessor generates a series of internal communication checks and outputs the results via OSD, as seen on the table below. Since it uses the OSD to display the results, any circuit failures which result in a “no display”...

  • Page 15: 55Pma550 55Hdm71

    55PMA550/55HDM71 (PW1) Service adjustment items by I C-bus control : should be ad justed : should be followed previous data Default Function Maximum Changed Component ADJ. FORMATTER VIDEO TUNER Value 55PMA550 55HDM71 Adjustment Items Mode Panel 0 R DRIVE1 [TV/VIDEO/DSUB-COMP]...

  • Page 16: 55Pma550 55Hdm71

    55PMA550/55HDM71 (PW1) : should be ad justed : should be followed previous data Default Changed Component Function Maximum ADJ. FORMATTER VIDEO TUNER Value Adjustment Items Mode 55PMA550 55HDM71 Panel 89 AFC _ GAIN (AV2) 90 AFC _ GAIN (AV3) 91 AFC _ GAIN (AV4)

  • Page 17: 55Pma550 55Hdm71

    55PMA550/55HDM71 (PW1) : should be adjusted : should be followed previous data Default Changed Component Function Maximum ADJ. FORMATTER VIDEO TUNER Value Adjustment Items Mode 55PMA550 55HDM71 Panel 178 Free 179 Free 180 Terminal Mode Function available 0:Not Available, 1:Available RS232C...

  • Page 18: 55Pma550 55Hdm71

    55PMA550/55HDM71 (PW1) : should be adjusted : should be followed previous data Default Changed Component Function Maximum ADJ. FORMATTER VIDEO TUNER Value Adjustment Items Mode 55PMA550 55HDM71 Panel 267 Correction for Tracking (DCBON) TV/VIDEO-Color Temp. : COOL 268 Correction for Tracking (DCBON) TV/AV-Col.

  • Page 19: 55Pma550 55Hdm71

    55PMA550/55HDM71 (PW1) : should be adjusted : should be followed previous data Default Changed Component Function Maximum ADJ. FORMATTER VIDEO TUNER Value Adjustment Items Mode 55PMA550 55HDM71 Panel 356 SEPA _ LEVEL _ DSUB 480i/576i 357 SEPA _ LEVEL _ DSUB...

  • Page 20: 55Pma550 55Hdm71

    55PMA550/55HDM71 (PW1) : should be ad justed : should be followed previous data Default Changed Component Function Maximum ADJ. FORMATTER VIDEO TUNER Value Adjustment Items Mode 55PMA550 55HDM71 Panel 445 Vertical Coring Level (Enhancer Gain)(32V/37V/42V) AS[VECOR0 _ P1] NT1-RF 446 Vertical Coring Level (Enhancer Gain)(32V/37V/42V) AS[VECOR0 _ P2]...

  • Page 21: 55Pma550 55Hdm71

    55PMA550/55HDM71 (PW1) : should be adjuste d : should be followed previous data Default Changed Component Function Maximum ADJ. FORMATTER VIDEO TUNER Value Adjustment Items Mode 55PMA550 55HDM71 Panel [YVNLP1 _ P1] [YHHPF0 _ P1] 535 Horizontal HPF Peak Freq. SW for Y/G...

  • Page 22: 55Pma550 55Hdm71

    55PMA550/55HDM71 (PW1) : should be adjusted : should be followed previous data Default Changed Component Function Maximum ADJ. FORMATTER VIDEO TUNER Value Adjustment Items Mode 55PMA550 55HDM71 Panel 623 Y OUT LEVEL I (6.0) For Asia 624 Y OUT LEVEL B/G (5.5) For Europe 625 Y OUT LEVEL D/K (6.5) For Europe...

  • Page 23: 55Pma550 55Hdm71

    55PMA550/55HDM71 (PW1) : should be adjusted : should be followed previous data Default Changed Component Function Maximum ADJ. FORMATTER VIDEO TUNER Value Adjustment Items Mode 55PMA550 55HDM71 Panel 712 Sharpness f0 For Main 480i/576i 713 Cb Offset1 For Main 480i/576i...

  • Page 24: Rear View

    55PMA550/55HDM71 (PW1) Item Vs and Va VOLTAGE ADJUSTMENT Applicable Model 55PMA550 , 55HDM71 Preparation Procedure (1) Keep heat-run for 1 minutes or more. (1) If the difference between the printed voltage of Vs and the indicated value of Vs Voltmeter is over 0.1V, adjust the Vs ADJ VR located on the Power...
  • Page 25 55PMA550/55HDM71 (PW1) Item AUTOMATIC SIGNAL LEVEL ADJUSTMENT –RGB (1) Applicable Model 55PMA550 , 55HDM71 Preparation Procedure (1) Input the adjustment signal of VGA (60Hz) (1) Select RGB2 and enter the service adjustment format into RGB2 [D-sub] input terminal. mode. the adjustment signal (2) Select No.740 “RGB Amp.
  • Page 26 55PMA550/55HDM71 (PW1) Item AUTOMATIC SIGNAL LEVEL ADJUSTMENT –VIDEO Applicable Model 55PMA550 , 55HDM71 Preparation Procedure (1) Input the adjustment signal of 576p or 480p (1) Select AV1 and enter the service adjustment mode. format into AV1 input terminal. the adjustment signal (2) Select No.743 “Automatic White peak Adj.
  • Page 27 55PMA550/55HDM71 (PW1) Item COLOR TEMPERATURE ADJUSTMENT -VIDEO Applicable Model 55PMA550, 55HDM71 Preparation Procedure [Adjustment of Cool mode] (This item must be done before the color temperature adjustment for PC mode.) (1) Enter the service adjustment mode, and confirm (1) Set CRT COLOR ANALYZER at the center of that No.0(R), 1(G) and 2(B) are all 255.
  • Page 28 55PMA550/55HDM71 (PW1) Item COLOR TEMPERATURE ADJUSTMENT -PC Applicable Model 55PMA550 , 55HDM71 Preparation Procedure [Adjustment of Cool mode] (1) Set CRT COLOR ANALYZER at the center of (1) Enter the service adjustment mode, and confirm the screen panel. that No.12(R), 13(G) and 14(B) are all 255. If the some data are not, set to 255.

  • Page 29: Troubleshooting

    55PMA550/55HDM71 (PW1) Troubleshooting (POWER) Power cannot be turned on (LED does not light) Is the input voltage applied to Power supply unit? (CN61 AC Fuse Power switch Filter PWB AC inlet F951 T10A 250V Are the voltages applied to CN63...
  • Page 30 55PMA550/55HDM71 (PW1) Picture is not displayed (LED is lighting) Is the LED red or green/orange? green/orange Is Voltage applied to CN63 pin of the Power supply unit? Is it the power saving mode? Power supply unit Input signal Cable or Formatter PWB...
  • Page 31 55PMA550/55HDM71 (PW1) Troubleshooting (PICTURE) [VIDEO PWB Circuit] No picture, no color or dark Single picture or Main picture Sub picture Trouble of Sub picture Are waveforms at pin1(Y), Pin3(CB) and pin5(CR) Check Formatter PWB of PYM? Are waveforms at pin 37(Y), 36(CB) Check Q205, Q206, Q207 etc.
  • Page 32 55PMA550/55HDM71 (PW1) Trouble of Sub picture Are waveforms at pin1(Y), pin3(CB) and pin5(CR) Check Formatter PWB of PYS? Are waveforms at pin 33(Y), 32(CB) Check Q208, Q209, Q214, Q215, etc. and 31(CR) of I202? Video Input Component Input Are waveforms at pin45(Y), 47(CB)
  • Page 33 55PMA550/55HDM71 (PW1) Trouble Shooting (Synchronization) [VIDEO PWB Circuit] No Sync. Single picture or Main picture Sub picture Trouble of Sub picture Are waveform at TP01(H) and Check Formatter PWB TP02(V) ? Are waveform at pin 16(H) and Check I602 28(V) of I601?
  • Page 34 55PMA550/55HDM71 (PW1) Trouble of Sub picture Are waveforms at TP03(H) and Check Formatter PWB. TP04(V) ? Are waveforms at pin 19(H) and Check I602 29(V) of I601? Component Input (without 480i/576i) / Component (480i/576i) Video Input Are waveforms at pin1(H) and...

  • Page 35: Basic Circuit Diagram

    55PMA550/55HDM71 (PW1) 8. Basic circuit diagram Waveform I201(MAIN.V)(44) PIN I501 YIN(3L)(44) PIN I201(SUB.V)(53) PIN I501 YIN(3D)(5) PIN I501 CIN(3L)(43) PIN 2Vp-p 1.0Vp-p 0.3Vp-p PYM(MY)(1)PIN PYM(MPB)(3)PIN PYS(SY)(1)PIN PYS(SPB)(3)PIN I501 CIN(3D)(7) PIN 1. 2Vp-p 1.4Vp-p 0.286Vp-p PYM(MPR)(5)PIN TP01(MH) TP02(MV) PYS(SPR)(5)PIN TP03(SH) TP04(SV) 5.0 Vp-p...
  • Page 36 55PMA550/55HDM71...
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  • Page 38 55PMA550/55HDM71...
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  • Page 42: Printed Wiring Board Diagram

    55PMA550/55HDM71 9. Printed Wiring Board (PWB) Diagrams FILTER board LED/RECEIVER board SPEAKER TERMINAL (R) board SW board S PE AK ER T ER MI NA L (L ) bo ar d TACT SW board...
  • Page 43 55PMA550/55HDM71 AUDIO board (side-A) AUDIO board (side-B) Mainly chip parts reference table Mainly chip parts reference table Cir.No. Position Cir.No. Position Cir.No. Position Cir.No. Position D406 IC403 D401 D412 D410 IC404 D402 K405 D413 Q401 D403 K410 D414 Q402 D404...
  • Page 44 55PMA550/55HDM71 JOINT board (Side-A) JOINT board (Side-B) Mainly chip parts reference table SUB WOOFER board (Side-A) SUB WOOFER board (Side-B) Cir.No. Position Cir.No. Position DH98 IF08 DH99 KH101 EJF1 KH102 EJF2 LH101 EJF3 LH101A EJF4 PCL1 EJF5 PTEM1 EJF6...
  • Page 45 55PMA550/55HDM71 VIDEO board ( side-A ) Mainly chip parts reference table Cir.No. Position Cir.No. Position Cir.No. Position Cir.No. Position Cir.No. Position D201 I603 L214 L315 Q206 D202 IR01 L215 L316 Q207 D501 IR02 L216 L317 Q208 I201 L201 L217 L318...
  • Page 46 55PMA550/55HDM71 VIDEO board ( side-B ) Mainly chip parts reference table Cir.No. Position Cir.No. Position D301 Q217 D302 Q325 I001 Q330 I002 Q515 I203 Q516 Q001...

  • Page 47: Block Diagram

    55PMA550/55HDM71 10. Block diagram...
  • Page 48 55PMA550/55HDM71 � SPRL Y � LED OFF LED OFF � DTC. � MUTE ����������� � ���������������� WOOFER OUT � RELAY DRIVE SCL2 BU4052 <I403> � MUTE DRIVE ������������� SDA2 � RGB2 � Audio IN � NJW1136 NJM2192AM TA2021B <IC401> <IC402>...

  • Page 49: Connection Diagram

    55PMA550/55HDM71 11. Connection diagram...

  • Page 50: Wiring Diagram

    55PMA550/55HDM71 12. Wiring diagram Wiring diagram 1/2 ����� � ������ ����� � ������ ����� � ������ ����� � ������ ���� ���� ���� ����� ���� ����� ����� ����� ����� ����� ����� ���� ��� ��������� ����� ��� ����� � ������ ����� � ������...
  • Page 51 55PMA550/55HDM71 Wiring diagram 2/2 EAL2 Pay attention not to pinch the wire by rear cover. EAL1 Pay attention not to pinch the wire by rear cover. Screw Screw (To FRONT (To FRONT FRAME ASS'Y) FRAME ASS'Y) E920 Screw Screw Wind the wire by 1 turn.

  • Page 52: Disassembly Diagram

    55PMA550/55HDM71 13. Disassembly diagram...
  • Page 53 55PMA550/55HDM71 Spare Part Name FHP Spare Part No. Panel Module FPF55C17196UA-51 LOGIC PWB Ass'y FPF24R-LGC0025 X-SUS PWB Ass'y FPF24R-XSS0007 Y-SUS PWB Ass'y FPF24R-YSS0008 A-BUS U1 PWB Ass'y FPF24R-ABU000701 A-BUS U2 PWB Ass'y FPF24R-ABU000702 A-BUS U3 PWB Ass'y FPF24R-ABU000703 A-BUS U4 PWB Ass'y...
  • Page 54 55PMA550/55HDM71...

  • Page 55: Replacement Parts List

    PWB ASS'Y AUDIO/JOINT #127 MJ02993 SCREW M3X8 3P CP-GRIP JP06951 PWB ASS'Y VIDEO #128 4522885 SCREW 3X8 CE CP-GRIP JP06944 PWB ASS'Y FILTER (for 55PMA550) #129 4341293 SCREW M3X10 CP-GRIP JP07871 PWB ASS'Y FILTER(for 55HDM71) #131 8815126 WASHER LOCKING 4 CS00784 FORMATER UNIT HCP144 As.(for 55HDM71)
  • Page 56 55PMA550/55HDM71 (PW1) PRODUCT SAFETY NOTE : Components marked with a have special characteristics important to safety. Before replacing any of there components,read carefully,the CAUTION FOR SAFETY of this Service Manual. Don't degrade the safety of the receiver through improper servicing.
  • Page 57 55PMA550/55HDM71 (PW1) PRODUCT SAFETY NOTE : Components marked with a have special characteristics important to safety. Before replacing any of there components,read carefully,the CAUTION FOR SAFETY of this Service Manual. Don't degrade the safety of the receiver through improper servicing.
  • Page 58 55PMA550/55HDM71 (PW1) PRODUCT SAFETY NOTE : Components marked with a have special characteristics important to safety. Before replacing any of there components,read carefully,the CAUTION FOR SAFETY of this Service Manual. Don't degrade the safety of the receiver through improper servicing.
  • Page 59 55PMA550/55HDM71 (PW1) PRODUCT SAFETY NOTE : Components marked with a have special characteristics important to safety. Before replacing any of there components,read carefully,the CAUTION FOR SAFETY of this Service Manual. Don't degrade the safety of the receiver through improper servicing.
  • Page 60 55PMA550/55HDM71 (PW1) PRODUCT SAFETY NOTE : Components marked with a have special characteristics important to safety. Before replacing any of there components,read carefully,the CAUTION FOR SAFETY of this Service Manual. Don't degrade the safety of the receiver through improper servicing.
  • Page 61 55PMA550/55HDM71 (PW1) PRODUCT SAFETY NOTE : Components marked with a have special characteristics important to safety. Before replacing any of there components,read carefully,the CAUTION FOR SAFETY of this Service Manual. Don't degrade the safety of the receiver through improper servicing.
  • Page 62 55PMA550/55HDM71 (PW1) PRODUCT SAFETY NOTE : Components marked with a have special characteristics important to safety. Before replacing any of there components,read carefully,the CAUTION FOR SAFETY of this Service Manual. Don't degrade the safety of the receiver through improper servicing.
  • Page 63 55PMA550/55HDM71 (PW1) PRODUCT SAFETY NOTE : Components marked with a have special characteristics important to safety. Before replacing any of there components,read carefully,the CAUTION FOR SAFETY of this Service Manual. Don't degrade the safety of the receiver through improper servicing.
  • Page 64 55PMA550/55HDM71 (PW1) PRODUCT SAFETY NOTE : Components marked with a have special characteristics important to safety. Before replacing any of there components,read carefully,the CAUTION FOR SAFETY of this Service Manual. Don't degrade the safety of the receiver through improper servicing.
  • Page 65 0790077R RESISTOR CHIP 1M OHM +-5% 1/16W R674 0790077R RESISTOR CHIP 1M OHM +-5% 1/16W CS00784 FORMATTER HCP144 ASS'Y (55HDM71) CS00785 FORMATTER HCP144 ASS'Y (55PMA550) R952 AT03661M MG 470K OHM +-5% 1/2W RC298 0195250R RESISTOR CHIP 0 OHM 1/16W FPF24R-XSS0007...

  • Page 66: Dc Voltage Tables

    15. DC Voltage Tables Plasma Display Panel - Connector Pin-outs Chassis #: 55P1 - Panel #: FPF55C17196UA-55 Board Connector Voltage Comments To/From Board Connector Voltage Comments To/From Board Connector Voltage Comments To/From 5.0V 5.0V 5.0V A-BUS-U1 CNU1-4 5.0V A-BUS-U2, CNU2-4 A-BUS-D1 CND1-4 5.0V...
  • Page 67 CND2- 9 CND1- 4 CND2- 4 55P1 A-BUS-D1 PWB 55P1 A-BUS-D2 PWB...
  • Page 68 CND4- 5 CND3- 12 CND4- 3 CND3- 5 55P1 A-BUS-D3 PWB 55P1 A-BUS-D4 PWB...
  • Page 69 CNU2-7 CNU1-4 CNU2-4 55P1 A-BUS-U1 PWB 55P1 A-BUS-U2 PWB...
  • Page 70 CNU3-10 CNU4-5 CNU4-3 CNU3-5 55P1 A-BUS-U3 PWB 55P1 A-BUS-U4 PWB...
  • Page 71 55P1 LOGIC PWB...
  • Page 72 CN21 CN22 CN23 CN25 CN24 55P1 X-SUS PWB...
  • Page 73 CN31 CN34 55P1 Y-SUS PWB...
  • Page 74 55PMA550/55HDM71 YK No.006E Digital Media Division QR60581 Printed in Japan (JE)

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