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Hitachi 42EDT41A Service Manual

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SERVICE MANUAL
N N T T S S C C
Be sure to read this manual before servicing. To assure safety from fire, 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. Safety Precaution------------------------------------ 2
2. Precaution -------------------------------------------- 21
3. Features ---------------------------------------------- 21
4. Specifications---------------------------------------- 22
5. Service Points---------------------------------------27
6. Service Mode Access --------------------------------28
7. Troubleshooting Flow Chart----------------------55
8. Block Diagram---------------------------------------58
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT
NOVEMBER 2004
Version 0198.3
P P W W 1 1 A A
C C h h a a s s s s i i s s
TO GO TO A CHAPTER, CLICK ON ITS HEADING BELOW
Service Warning

PLASMA DISPLAY PANEL

PA
CMP420V1A / CMP420V2A
R/C: CLU-W900 / SMK
Caution
Contents
10. Circuit Board Layers-----------------------------63
11. Basic Circuit Diagram----------------------------64
13. Disassembly Diagram---------------------------- 71
14. Replacement Parts List ---------------------------- 72
15. DC Voltages ----------------------------------------- 74
16. Speaker Installation ------------------------------- 82
HHEA-MANUFACTURING DIVISION
No. 0198
42EDT41A
CH 3
CH 1, CH 2

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Summary of Contents for Hitachi 42EDT41A

  • Page 1: Table Of Contents

    Be sure to read this manual before servicing. To assure safety from fire, 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: Safety Precaution

    PW1A SAFETY PRECAUTIONS Leakage Current Hot Check NOTICE: Comply with all cautions and safety-related notes This check must be done considering the AVC or the PDP located on or inside the cover case and on the chassis or plasma module. monitor as one instrument each.
  • Page 3 For the latest information, always the module (glass-panel). consult the current HITACHI Service Manual. A subscription to, 3. Please do not stand the module with the edge of the glass- or additional copies of HITACHI Service Manuals may be panel on the table since this might result in damage to the obtained at a nominal charge from HITACHI Sales Corporation.
  • Page 4 PW1A SERVICING PRECAUTIONS CAUTION: Before servicing instruments covered by this service Electrostatically Sensitive (ES) Devices data and its supplements and addenda, read and follow the Some semiconductor (solid state) devices can be damaged “Important Safety Instructions” on page 3 of this publication. easily by static electricity.
  • Page 5 4. Securely crimp each connection and solder it. IC Removal/Replacement Some Hitachi unitized chassis circuit boards have slotted holes 5. Inspect (on the circuit board copper side) the solder joints of (oblong) through which the IC leads are inserted and then bent the two “original leads”.
  • Page 6 Hitachi personnel. 2. Trace along the copper pattern from both wire sides of the pattern break and locate the nearest component directly At IC Connections connected to the affected copper pattern.
  • Page 7 PW1A NOTE: These components are affixed with glue. Be careful not to break or damage any foil under the component or at the pins of the ICs when removing. Usually applying heat to the component for a short time while twisting with tweezers will break the component loose. Leadless Chip Components How to Replace Flat-lC (surface mount)
  • Page 8 Modifications The FCC requires the user to be notified that any changes or modifications made to this device that are not expressly approved by Hitachi Home Electronics (America), Inc. may void the user’s warranty. Cables Connections to this device must be made with shielded cables with metallic RFI/EMI connector hoods to maintain compliance with FCC Rules and Regulations.
  • Page 9 PW1A ACKNOWLEDGMENTS AND TRADEMARKS This Plasma Television complies with VESA DDC2B specifications, Plug & Play is a system with computer, peripherals (including monitors) and operating system. It works when the monitor is connected to a DDC ready computer that is running an operating system software that is capable for the plug & play. When a Plug and Play PC is powered on, it sends a command to the Monitor requesting identification.
  • Page 10 PW1A Plasma TV Hitachi RS232C Communication Specification This document defines the detailed RS232C control protocol for the following Hitachi Plasma Televisions: Model: 42EDT41A CMP420V1A CMP420V2A The Information enclosed is subject to change without notice. Please refer to revision number shown above when inquiring about product support.
  • Page 11 PW1A Plasma TV 2.2- Data Format (1) Terminal Mode control format (Turning on and Off Terminal Mode) - Terminal On is achieved by sending a 1 byte command of 05 (Hex). - Terminal Off is achieved by sending a 1 byte command of 04 (Hex) Figure.
  • Page 12 PW1A Plasma TV Communication Protocol 3.1- Terminal Mode (Communication between television and external PC) When the RS232C mode is set from Off to On by the television OSD menu and the TXD2 and RXD2 serial communication lines are switched to AV control, the television can communicate with and external PC.
  • Page 13 PW1A Plasma TV Revision 1.0 3.2- Command Summary (Sending and Receiving Data) 3.2.1- Data received by Television TV will accept data from the PC when it is properly formatted as shown in table 3.2.1.1 only • when the Terminal Mode is ON. •...
  • Page 14 PW1A Plasma TV 3.3 Command Table 3.3.1- 1 sub command (for function) table Table 3.3.1 1 Sub Command and Adjustment Table Setting Command Command Format Function E2PROM (*1) Control POWER 0000 Info Write ( c ) INPUT 0000 Info Write ( c ) Volume 0000...
  • Page 15 PW1A Plasma TV 3.3.3 5 and 6 Data Command Table The table below shows the specification for the 5 and 6 data bytes. Table 3.3.3 Specification for 5 and 6 data bytes in normal command Transfer Data (Hex) Note Dummy Data Dummy Data Dummy Data Transfer Data (1 byte)
  • Page 16 PW1A Plasma TV Setting Item Initial Comments Data Range Setting Info 0: Off 1: On Direct CH 0~9 Key Code 0~9-0~9 Direct Channel (-) Direct Channel Select Auto Movie Mode 0: Off 1: On (Auto) (RGB Mode) Contrast 0~68 Step Brightness 0~60 Step Color Temperature...
  • Page 17 PW1A Plasma TV 3.3.5 Combination Control Specification (1) Active Terminal On/Off States • If you send a Terminal On command when the OSD is active, the OSD will disappear The remote control keys will also be invalid except for the Power button on the front of the •...
  • Page 18 PW1A Plasma TV Command String Development Information 4.1- To assist with developing command strings, the table below shows a Hex character conversion chart Table 4.1.1 Hex Character Conversion Chart Hex Character Hex Code Hex Character Hex Code 4.2 - An example of the proper coding technique is demonstrated below for the “Power On” Command.
  • Page 19 PW1A Plasma TV Figure 7 4.5- The following table provides the conversion strings for the “Write” commands Table 4.5.1 Write Data Command Summary Item Command Initial Hex Character Hex Code Set Result Condition Power 6E0000000001 364530303030303030303031 Turns Power On Power 6E0000000000 364530303030303030303030 Turns Power Off...
  • Page 20 PW1A Plasma TV Table 4.5.1 Write Data Command Summary (Continued) Item Command Initial Hex Character Hex Code Set Result Condition Info B20000000001 423230303030303030303031 Turns Info On Info B20000000000 423230303030303030303031 Turns Info Off Direct CH Key Code D00000000000 443030303030303030303030 Key code to 0 to 0 Direct CH - D00000010000...

  • Page 21: Precaution

    One composite video output terminal as a monitoring output, added with VIDEO board. Simple type remote (CP-RD4). [TELEVISION model] 42EDT41A Various input/output terminals added with VIDEO board. (same features as above mentioned AV MONITOR) Tuner input added with VIDEO board...

  • Page 22: Specifications

    Panel Resolution 852 (H) x 480 (V) pixels Net dimensions 1030 (W) x 636 (H) x 91 (D) mm (excluding Speakers/Stand) Net weight CMP420V1A/V2A:33.2kg 42EDT41A:34.2kg (excluding Speakers/Stand) Temperature Ambient Operating : 5 to 35 , Storage : -15 to 60...
  • Page 23 PW1A Signal Input DVI terminal (DVI-D) Input signal Input signal T.M.D.S. Data2- +5V Power T.M.D.S. Data2+ Ground (for+5V) 9 10 11 12 13 14 15 16 T.M.D.S. Data2/4 Shield Hot Plug Detect 17 18 19 20 21 22 23 24 T.M.D.S.
  • Page 24 PW1A Recommended Signal List With Digital RGB signal input (RGB1 input) • Make sure that the signal of the equipment to be connected is compatible with the pecifications of this list. With Analog RGB signal input (RGB2 input)
  • Page 25 PW1A • The type of video board or connecting cable used may not allow for correct displays adjustment of Horizontal Position, Vertical Position, Horizontal Clock and Clock Phase. • The monitor may fail to display an animation image correctly when a signal having a vertical frequency of 85Hz or higher is input to it. •...

  • Page 26: Component Names

    2. VOL 2. ADJ 3. VOL 3. ADJ 4. PROGRAM NOTE: 4. SELECT 1st number indicates normal button operation 5. PROGRAM 2nd number indicates function during MENU 5. SELECT 6. INPUT SELECT 6. OK 7. MENU [Remote control] CMP420V1A CMP420V2A 42EDT41A...

  • Page 27: Service Points

    PW1A 4. 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 28: Service Mode Access

    PW1A CMP420V1 / CMP420V2 / 42EDT41 (PW1A) 5. 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 29 PW1A CMP420V1 / CMP420V2 / 42EDT41 (PW1A) 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 30 PW1A CMP420V1 / CMP420V2 / 42EDT41 (PW1A) 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 adjustment parameter, and for changing the parameter s value. Use the OK button to confirm.
  • Page 31 PW1A CMP420V1 / CMP420V2 / 42EDT41 (PW1A) 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.
  • Page 32 PW1A CMP420V1 / CMP420V2 / 42EDT41 (PW1A) 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 33 PW1A Service adjustment items by I C-bus control Should be adjusted Should be followed previous data Changed Component Function Maximum Adj. Default Formatter VIDEO TUNER Value PANEL Adjust Items Mode 24 Black Level(RGB_AMP) TV/VIDEO 25 Black Level(RGB_AMP) 26 Reference Amplitude(RGB_AMP) TV/VIDEO 27 Reference Amplitude(RGB_AMP) 28 Display for Max.
  • Page 34 PW1A Should be adjusted Should be followed previous data Function Changed Component Maximum Default Formatter Adj. VIDEO TUNER Value PANEL Adjust Items Mode 68 Y_OUT_LEVEL (VIDEO) 69 Dispersion Time of Sustain current 0: 2 Times, 1: 4 times For Dynamic (Day) mode 70 C_OUT_LEVEL (TEXT) 71 C_OUT_LEVEL (VIDEO) 72 Dispersion Time of Sustain current 0: 2 Times, 1: 4 times...
  • Page 35 PW1A Should be adjusted Should be followed previous data Changed Component Function Maximum Adj. Default Formatter VIDEO TUNER Value PANEL Adjust Items Mode 137 DC_GAIN MAIN NTSC mode 138 VAP_GAIN MAIN NTSC mode 139 VAP_INV MAIN NTSC mode 140 YH_CORE MAIN NTSC mode 141 YHCGAIN MAIN NTSC mode...
  • Page 36 PW1A Should be adjusted Should be followed previous data Function Changed Component Maximum Default Formatter Adj. VIDEO TUNER Value PANEL Adjust Items Mode 206 Sharpness f0(L) 207 NJW1320_OUT1_GAIN VIDEO PWB 208 NJW1320_OUT2_GAIN VIDEO PWB 209 Sharpness f0(L') 210 AFC_GAIN (Except AV00 mode) Except AV00 mode Recovery to an error of OSC frequency of Ceramic resonator for timer 212 Brightness Center (CM)
  • Page 37 PW1A Should be adjusted Should be followed previous data Changed Component Function Maximum Adj. Default Formatter VIDEO TUNER Value PANEL Adjust Items Mode 275 Upper Limits Value for Sync Detect of 2ms interval For Power Save at AV mode 276 Horizontal Position of OSD 60Hz 277 Vertical Position of OSD 60Hz...
  • Page 38 PW1A Should be adjusted Should be followed previous data Function Changed Component Maximum Default Formatter Adj. VIDEO TUNER Value PANEL Adjust Items Mode 344 VsVa WAIT TIMER [RISTIM] 345 Initial value of Contrast Panel life -Extend1 346 Interval time of correction time Panel life -Extend1 347 Additional value of Contrast Panel life -Extend1...
  • Page 39 PW1A Should be adjusted Should be followed previous data Changed Component Function Maximum Adj. Default Formatter VIDEO TUNER Value PANEL Adjust Items Mode Main COLOR SYSTEM CONTROL-MODE(0:BW, 2:3.58NTSC, 3:4.43NTSC, COLOR SYSTEM CONTROL-MODE(0:BW, 2:3.58NTSC, 3:4.43NTSC, 415 Horizontal Filter SW [HHPF0] NTSC 416 Enhancer Gain [HHPF1] 417 Enhancer Gain [HHPF2] 418 Horizontal Coring Level(Enhancer Gain) AS[HECOR0_PO]...
  • Page 40 PW1A Should be adjusted Should be followed previous data Changed Component Function Maximum Adj. Default Formatter VIDEO TUNER Value PANEL Adjust Items Mode 482 [YVDSBG1_P0] HD2/HD3/HD9/HD10 483 [YVDSBG2_P0] HD1/HD4/HD5/HD6/HD7/HD8 484 Vertical RGB Coring For Y/G [YVDSBG0_P0] NTSC/PAL/multi 485 [YVDSBG1_P0] 486 Vertical Enhancer Clip for Y/G [YVECLP0_P0] NTSC/PAL/multi 487 [YVECLP1_P0] 488 Vertical Clip Offset level [YVECLP0_P0]...
  • Page 41 PW1A Should be adjusted Should be followed previous data Changed Component Function Maximum Default Formatter Adj. VIDEO TUNER Value PANEL Adjust Items Mode 551 AS[YHCLPL1_P1] except NT1-RF/PAL1-except RF 552 [YHECLPL2_P1] 553 EU[YHECLPL0_E_P1] RF/multi 554 EU[YHECLPL1_E_P1] NT1-RF /PAL1-except RF 555 Horizontal Non Linear Peaking for Y/G [YHNLP0_P1] NTSC/PAL/multi 556 [YHNLP1_P1] 557 Coring Amplitude for Y/G [YC0R0_P1]...
  • Page 42 PW1A Should be adjusted Should be followed previous data Function Changed Component Maximum Default Formatter Adj. VIDEO TUNER Value PANEL Adjust Items Mode 620 Y OUT LEVEL M (4.5) For Asia 621 Y OUT LEVEL B/G (5.5) For Asia 622 Y OUT LEVEL D/K (6.5) For Asia 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 43 PW1A Should be adjusted Should be followed previous data Changed Component Function Maximum Adj. Default Formatter VIDEO TUNER Value PANEL Adjust Items Mode 689 Center of Sharpness (HV Enhancer Gain for Y) For Asia/US VIDEO 690 Center of Sharpness (HV Enhancer Gain for Y) For Asia/US HD5/HD6 691 Center of Sharpness (HV Enhancer Gain for Y) For Asia/US HD1/HD4/HD7/HD8...
  • Page 44 PW1A Acceptable Signal Formats Video Judgment of Video Input PAL1: S and Composite of PAL/SECAM System Mode Input H.Frequency Setup PAL2: Component of PAL (YCBCR) 15.75kHz Auto PAL3: Component of PAL (YPBPR) SDTV/DVD PAL2 (576i) PAL4: Component of PAL (YCBCR-SCART) HDTV NTSC 15.75kHz...
  • Page 45 PW1A Adj. point Refer the figure below Item Power Unit Vs, Va Adjustment Adjustment Procedures Remarks Adjustment Preparations Turn on the set and perform Turn Vs ADJ to adjust Vs voltage Permissive level of voltage in pre-heat run more than 1 to be within ±0.1V of the value sufficient time of heat-run min with burn-in screen.
  • Page 46 PW1A Item AGC Adjustment (Tuner built-in Model for Asia only) Adj. point Adjustment Procedures Adjustment Preparations Remarks Turn on the set and Receive AGC adjustment signal. No.289(AGC Adjustment) perform pre-heat run Indicate Service adjustment menu. : AGC Adjustment control more than 20 min. Receive AGC adjustment Display the following signals at the No.291(AGC Input):...
  • Page 47 PW1A TV-Video Sub-tint Adjustment(Main/Sub) Item Preparation Procedure Receive Sub-tint adjustment signal of NTSC by TV Video Sub-tint Adjustment (Main) AV1 input. (composit) Refer to the following for the details of a signal. The waveform of #1pin(Cr output) and #5pin(Y output) of [PYM] Connector is seen. 1pin is connected to CH1.
  • Page 48 PW1A AUTOMATIC SIGNAL LEVEL ADJ USTMENT –RGB (1) Item 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. Gain ADJ.” and press OK button for more than 2 seconds to start the The signal level of black area adjustment.
  • Page 49 PW1A Item AUTOMATIC SIGNAL EL ADJ USTMENT –VIDEO Preparation Procedure (1) Input the adjustment signal of 576p or (1) Select AV1 and enter the service adjustment mode. 480p format into AV1 input terminal. the adjustment signal (2) Select No.743 “Automatic White peak Adj. (Multi)” and press OK button for more than 2 seconds to start the adjustment.
  • Page 50 PW1A Item Video Color Temperature Adjustment (Cool) Adj. point Adjustment Procedures Remarks Adjustment Preparations Set the output of signal Perform the following adjustment with Color temperature should generator to white raster. the remote control. be adjusted under the (Ratio:100%) condition in which the screen is the brightest, thus the initial value of adjustment is it’s maximum...
  • Page 51 PW1A Item Video Color Temperature Adjustment (Normal) Adj. point Adjustment Procedures Remarks Adjustment Preparations Set the output of signal Perform the following adjustment with Color temperature should generator to white raster. the remote control. be adjusted under the (Ratio : 100%) condition in which the screen is the brightest, thus the initial value of adjustment is...
  • Page 52 PW1A Item Video Color Temperature Adjustment (Warm) Adj. point Adjustment Procedures Adjustment Preparations Remarks Set the output of signal Perform the following adjustment with Color temperature should generator to white raster. the remote control. be adjusted under the (Ratio : 100%) condition in which the screen is the brightest, thus the initial value of adjustment is...
  • Page 53 PW1A Item Video Color Temperature Adjustment (B/W) Adj. point Adjustment Procedures Adjustment Preparations Remarks Set the output of signal Perform the following adjustment with Color temperature should generator to white raster. the remote control. be adjusted under the (Ratio : 100%) condition in which the screen is the brightest, thus the initial value of...
  • Page 54 PW1A Item PC Color Temperature Adjustment Adj. point Adjustment Procedures Adjustment Preparations Remarks This adjustment should be Perform the following adjustment Environment 20 lux or less done after video color with the remote control. temperature adjustment. Set into Factory Adjustment Set the CRT color analyzer (CA100) mode.
  • Page 55 PW1A Flow Chart Power cannot be turned on (LED does not light) Is the input voltage applied to Power supply unit? (CN61 AC Fuse AC inlet Power switch FILTER PWB F901 T6.3AH 250V Are the voltages applied to CN63 pins and CNPPS pins of Power supply unit ?
  • Page 56 PW1A 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 Formatter PWB Is the voltage of CN68 pin...
  • Page 57 PW1A [ POWER BOARD ] NO POWER NO Vs,Va,Vcc,STB impedance FUSE check D001 D001 impedance check Q003/Q004 Q003,Q004, impedance check Q201 over 130V check voltage D010(K)-J28 Q201,IC201 under 130V D210,Q200,etc impedance check Q301 D151,IC101, Q101,R005 Q104,Q108, Q301,Q300 NO PICTURE & SOUND D310,etc NO PICTURE NO Vs,Va,Vcc...

  • Page 58: Block Diagram

    PW1A 7. Block diagram [ Block diagram 1 ]...
  • Page 59 PW1A [ Block diagram 2 ]...
  • Page 60 PW1A [ Block diagram 3 ( POWER BOARD ) ]...

  • Page 61: Connector Connection Diagram

    PW1A 8. Connector connection diagram POWER UNIT PDP PANEL CN64 B10P-VH B10P-VH CN68 B6B-PH B6B-PH STB3.3V Vpr2 CN69 20FMN-BT ZIF-20P Vsago VSAGO Refer to p.76 Vcego VCEGO PFCgo PFCGO JOINT PWB FORMATTER PWB CN63 EJP1 EFM1 B5B-EH B5B-EH DF13-30DP-1.25V(59) FI-TWEP31-VF STB 5V STB 5V GND(LVDS)
  • Page 62 PW1A...
  • Page 63 42EDT41, 42EDT41A, CMP420V1, CMP420V2, CMP420V1A, CMP420V2A Circuit Board Part Numbers - Top Layer (Chassis Boards) Description 42EDT41 42EDT41A AC Filter PWB TS05423 TS05423 Power Unit HA01361 HA01361 Video Card UX23571 UX23571 Joint PWB TS05428 TS05428 Formatter PWB TS05429 CS00891 CMP420V1 and CMP420V2 use parts for 41EDT42...
  • Page 64 42EDT41, 42EDT41A, CMP420V1, CMP420V2, CMP420V1A, CMP420V2A Circuit Board Part Numbers - Bottom Layer (Panel Boards) Description All Models Description All Models Y-Driver Upper PWB TS05672 Tact Key PWB TS05422 Y-Drive Lower PWB TS05673 SW PWB TS05424 Y-SUS PWB TS05679 LED PWB...
  • Page 65 42EDT41, 42EDT41A, CMP420V1, CMP420V2, CMP420V1A, CMP420V2A Circuit Board Part Numbers - Interconnect Cables Description All Models Description All Models Ribbon Cable, Control PWB to Y-SUS PWB TE05041 Wire Ass'y, Control PWB to X-Drive Left PWB TE05051 Ribbon Cable, Control PWB to X-Drive Left PWB...

  • Page 66: Basic Circuit Diagram

    PW1A 10. Basic circuit diagram [ POWER BOARD Basic circuit diagram 1 ]...
  • Page 67 PW1A [ POWER BOARD Basic circuit diagram 2 ]...
  • Page 68 PW1A [ POWER BOARD Basic circuit diagram 3 ]...
  • Page 69 PW1A [ POWER BOARD Basic circuit diagram 4 ] [ POWER BOARD Basic circuit diagram 5 ]...

  • Page 70: Printed Wiring Board Diagram

    PW1A 11. Printed wiring board diagram [ POWER BOARD Printed wiring board diagram 1 ]...
  • Page 71 PW1A [ POWER BOARD Printed wiring board diagram 2 ]...
  • Page 72 PW1A [ POWER BOARD Printed wiring board diagram 3 ]...

  • Page 73: Disassembly Diagram

    PW1A 12. Disassembly diagram...

  • Page 74: Replacement Parts List

    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. CMP420V2A CMP420V1A 42EDT41A PART SYMBOL DESCRIPTION...
  • Page 75 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. CMP420V2A CMP420V1A 42EDT41A PART SYMBOL DESCRIPTION...

  • Page 76: Dc Voltages

    PW1A DC VOLTAGES BOARD CONN NOTE TO/FROM BOARD CONN NOTE TO/FROM 4.97 Pink 4.97 Pink 1.97 1.97 CN63 Joint PWB, EJP1 EJP1 Power PWB, CN63 5.91 5.91 5.91 5.91 34.64 Orange 34.64 Orange 5.17 5.17 5.17 5.17 CNPPS Joint PWB, EJP2 EJP2 Power PWB, CNPPS 12.54...
  • Page 77 PW1A DC VOLTAGES BOARD CONN NOTE TO/FROM BOARD CONN NOTE TO/FROM White 4.88 EJF5 Formatter PWB, EFG1 4.88 EFA1 Audio PWB, EAF1 0.471 4.88 4.85 4.85 Joint PWB 4.88 4.85 Gray 4.85 4.99 White 4.99 4.88 4.99 EJF6 Formatter PWB, EFG2 4.99 EFG1 4.88...
  • Page 78 PW1A Power PWB—DC Voltages CN63 CNPPS CN805 CN807 CN806...
  • Page 79 PW1A Joint PWB—DC Voltages EJP2 EJP1 EJF1 EJF2 EJA1 EJF5 EJF6...
  • Page 80 PW1A Audio PWB—DC Voltages EAJ1 EAF1 EAD1 (NOT USED)
  • Page 81 PW1A Formatter PWB—DC Voltages EFA1 EFL1 EFK1 EFG1 EFG2 EFJ2 EFJ1 EFJ4...
  • Page 82 PW1A YSUS PWB—DC Voltages...
  • Page 83 PW1A ZSUS PWB—DC Voltages...
  • Page 84 Application Model: 42PD5000*,42PMA500*,42HDM70,CMP421* Model CMPAS14/CMPAS14S User Manual Thank you for purchasing a Hitachi plasma display speaker system. READ THE INSTRUCTIONS ON THIS USER MANUAL CAREFULLY. KEEP THIS USER MANUAL FOR FUTURE REFERENCES. CAUTION DO NOT HANDLE MONITOR BY HOLDING THE SPEAKER SYSTEMS.
  • Page 85 Caution Make sure the monitor power is switched off (with the standby/ receive lamp switched off or red) before you connect or disconnect the speaker cables. Attach the speaker systems to the monitor. Attach the speaker brackets to the speaker systems. Attach the screws in a position that allows you to read the speaker holder orientation markers (R), (L).
  • Page 88 PW1A MEMO...
  • Page 89 PA-0198 42EDT41A CMP420V1A CMP420V2A...

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