Hitachi CMP4201 Service Manual

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SERVICE MANUAL
Be sure to read this manual before servicing. To assure safety from fire, electric shock, injury,
harmful radiation and materials, various measures are provided in this Plasma display.
Be sure to read cautionary items described in the manual to maintain safety before servicing.
1. Since Panel Module and front Filter are made of glass, handling to the broken Module and
Filter shall be taken care sufficiently in order not to be injured.
2. Replacing work shall be started after the Panel Module and the AC/DC Power supply become
sufficiently cool.
3. Special care shall be taken to the display area in order not to damage its surface.
4. The Panel Module shall not to be touched with bare hand to protect its surface from stains.
5. It recommended using clean soft gloves during the replacing work in order to protect not only
the display area of the Panel Module but also a serviceman himself.
6. The Chip Tube of Panel Module (located upper left of the back) and flexible cables connecting
Panel glasses to drive circuit PWBs are very weak, so shall be taken care
sufficiently not break. If you break Chip Tube, the Panel doesn't display forever.
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT.
Caution
Serviceman Warning
Contents
2
6. Block diagram
2
3
4
5

Plasma Display

October 2002
No.0069E
Mod. PD1
(CMP4121HD -
(CMP420 )
(42PMA400 )
A
)
14
15
18
22
24
Table of Contents
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Summary of Contents for Hitachi CMP4201

  • Page 1: Table Of Contents

    SERVICE MANUAL No.0069E Mod. PD1 (CMP4121HD - (CMP420 ) (42PMA400 ) Caution Be sure to read this manual before servicing. To assure safety from fire, electric shock, injury, harmful radiation and materials, various measures are provided in this Plasma display. Be sure to read cautionary items described in the manual to maintain safety before servicing.
  • Page 2: Features

    1. Features 42 inches Hi-Vision compatible high-definition color plasma display panel. Newly developed Multi-scanning converter provides a multi-scan coverage of TV signals through to PC analog signals (15 kHz to UXGA(107 kHz)). Large high-quality display images free from color miss-convergence and display distortion, as well as from geomagnetic effect and the magnetic effect of ambient power lines.
  • Page 3: Lead Free Solder

    3. 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 Lead free solder indicator Printed circuit boards using lead free solder are engraved with an "F."...
  • Page 4: Names Of Each Part

    4. Names of each part Outlook Filter Panel Front Frame HITACHI HITACHI HITACHI HITACHI V ID EO RG B/ M EN U S EL E CT VO L UM E S UB -P O WE R Control Switches FRONT VIEW...
  • Page 5: Trouble Shooting

    5. Trouble shooting 5.1 Trouble Shooting of Plasma Monitor Power can not be turned on (LED is not light) Is the input voltage applied to the AC/DC Power unit ? (CN61 AC Fuse FILTER PWB AC inlet Power switch F901 T6.3AH 250V Voltage applied to pins , (PW01)
  • Page 6 Picture is not displayed (LED is lighting) Is the LED red or green/orange green/orange Voltage applied to pins (PW01) of the Signal PWB Is it the power saving mode? AC/DC Power unit Input signal Cable or Signal PWB Signal PWB Do the Fans rotate? Is pin...
  • Page 7 5.2 Trouble Shooting of Panel Module from the point view of Fault Symptom Fault Fault status Suspected fault Analysis contents location procedure and measure After momentarily going X-SUS Entire on, the screen becomes Y-SUS Panel chassis screen does black immediately or after LOGIC a few seconds.
  • Page 8 Fault Fault status Suspected Analysis procedure contents fault and measure location 10 Image Fixed display contents Panel Perform all white heat sticking are always displayed. chassis run. After judgment, ABCDE replace panel chassis 11 Stains Oval-shaped points Panel Perform all white heat having abnormal chassis run.
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  • Page 13 This sheet shown after change 5.4 Checking serial ID number of Panel Module (14 digits) The serial ID number of the panel module that is brought in for service and that of the completedpanel chassis has the structure as shown below. The serial ID number is shown on the bar code label that is attached to the rear of the chassis (aluminum).
  • Page 15: Disassembly Diagram

    7. Disassembly diagram Screw(a) 28 (1) Remove Back Cover Lay down the Plasma display so that the face is down on the soft thick (over 50mm) cushion. Be careful not to be damaged the face of Front Filter. Remove 28screws(a) then remove Back Cover.
  • Page 16 Screw(m) 18 (5) Remove Front Frame Remove 18screws(m) then remove Front Frame. Be careful not to fall down the Front Frame when remove 18screws(m). Screw(n) 8 (6) Remove Front Filter (Glass) Remove 8screws(n), and remove Filter Fix Metal then remove Front Filter. When attach the new Front Filter to the Filter Fix Metal Front Frame, locating the conducting...
  • Page 17 (9) Remove Power Unit P.W.B. Disconnect CN101(EH-13P), CN102(EH-6P)CN64(VH-10P), Screw(y) 9 Screw(p) 2 Screw(v) 10 CN65(VH-9P),CN66(PH-7P), Screw(x) 9 CN67(PH-7),CN68(PH-6P) and CN69 ( FLAT Cable). Be careful not to be damaged the CN69 connector folder. Remove 10 screws(v) then remove Power Unit Power Unit P.W.B.
  • Page 18: Re-Adjustment

    8. Re-Adjustment changing the Panel Module, re-adjustment is needed according to the item 8.1.to 8.5. For Power Unit, item 8.1; for Signal Board, item 8.2 to 8.5* and for Video Board, item 8.2, 8.4,8.5 are needed. It is recommended to start re-adjustment after 30 minutes warm-up with the Burn-in signal. *) When it is not inserted into VIDEO Unit of optional Board in Signal Board replacement, VIDEO Unit becomes necessary.
  • Page 19 8.2 Personal Computer (PC) input and Video input Automatic amplitude adjustment How to set to service adjustment mode Turn off the sub power button (or power button on the Remote Controller ), Then turn on the SUB POWER button for more than 5 seconds while you keep pushing INPUT SELECT and RECALL buttons located on the bottom of the set.
  • Page 20 8.3 Color temperature adjustment for PC How to prepare 1. Set signal generator output signal to Full White. 2.Signal condition VGA (75): 0.7Vp-p, Set up level: 0V 3.Input the signal into RGB (D-sub) terminal. 4.Set Picture setting up to reference. How to adjust 1.Indicate service adjustment mode and adjust as follows by Remote Controller.
  • Page 21 How to adjust 1.Indicate service adjustment mode and adjust as follows by Remote Controller. 2.Measurement probe of CRT Color Analyzer CA-100 is set on the center of screen. 3.Adjust color temperature as follows by reducing one or two numbers of No.0, 1, 2. (At least one of these datas should be 255.) VIDEO color temperature (COOL) x=0.285 0.005, y=0.294 0.005, at 9300 K...
  • Page 22: Wiring Drawing

    9 Wiring Drawing 9.1 Panel Module and Power Unit section POWER UNIT CN65 CN64 CN22-CN32間コネクタ布線注意: PANEL YSUS PANEL XSUS 電源基板1次側に接触しない様スタイルどりし、 (CN22)側に出来るだけ手繰りよせ布線のこと。 EJ202 ESP TO SIGNAL P.W.B EAP CN32 (PW01) TO AUDIO P.W.B CN22 (PVA) CN23 CN33 CN102 (*7) CN67 ECN1 CN101 CN69 CN68 TO SIGNAL P.W.B CN66 (PP01) NCN11 EJ203...
  • Page 23 9.2 Plasma Monitor( ( ( ( H1/H2 panel) ) ) ) For H2 panel The position of FAN only differs. FLOW FLOW MFN2 MFN1 Roll 3 times MF2 3回巻くこと. POWER UNIT CN304 CN64 CN65 N020 ( SP端子は、CLOSE ) パースロック(φ8.0) Pathlook(φ8) 状態にすること。 For H1 panel H1 Panel EFP...
  • Page 24: Replacement Parts List

    10.Replacement Parts list Product Safety Note : Components marked a have special characteristics important to safety. Don’t degrade the safety of the receiver through improper servicing. CMP4201/CMP4202 CMP4203 PANEL # FLTFPF42C128128UB-75 PANEL # FLTFPF42C128128UB-75 FPF16R-LGC500703 LOGIC PWB FPF16R-LGC500703 LOGIC PWB...
  • Page 25 (CMP4121HD/CMP420/42PMA400)

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