Service Manuals, User Guides, Schematic Diagrams or docs for : Hitachi Monitor Hitachi_42PD9800TA_FW1_[SM]

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YK No.034E

SERVICE MANUAL 42PD9800TA(FW1)

The PDP panel made from FHP is used for this product.

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 HITACHI display.
Be sure to read cautionary items described in the manual to maintain safety before servicing.

Service Warning
1. Since Panel Module and front Filter are made of glass, handling 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 suffi-
ciently cool.
3. Special care shall be taken to the display area in order not to damage its surface.
4. The Panel Module shall not be touched with bare hand to protect its surface from stains.
5. It is recommended to use 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 surrounded by frame) and flexible
cables connecting Panel glasses to drive circuit PWBs are very weak, so shall be taken care suffi-
ciently not to break. If you break Chip Tube, the Panel doesn't display anything forever.

Contents
1. Features ----------------------------------------------- 3 9. Basic circuit diagram------------------------------ 39
2. Specifications ----------------------------------------- 4 10.Printed wiring board diagram ------------------- 64
3. Service point ------------------------------------------ 5 11.Block diagram -------------------------------------- 69
4. Component names ---------------------------------- 6 12.Connection diagram ------------------------------ 70
5. New adoption technology-------------------------- 8 13.Wiring diagram ------------------------------------- 71
6. Adjustment ------------------------------------------ 12 14.Disassembly diagram ---------------------------- 73
7. Troubleshooting ------------------------------------ 28 15.Replacement Parts list ----------------------------- 77
8. Self-diagnosis function --------------------------- 36

SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT.

Plasma Display
September 2006
42PD9800TA (FW1)

CAUTION FOR SAFETY
Please read this page before repair the monitor.
This page explains to following items for keep the safety of set and prevent to accident during
repair work.
We explain by symbol at happen the damage or injury when took wrong repair.

Warning This symbol means "possible to die or heavy damage"

Caution This symbol means "possible to damage or something will break"

We made the symbol as below, which are kind of following items.

This symbol means "CAUTION" This symbol means "MUST"

This symbol means "POSSIBLE to
This symbol means "DO NOT"
ELECTRIC SHOCK"

WARNING
Should be follows to instructions. Should be kept same style of wiring or component.
We indicates to cabinet, chassis and parts Monitor uses tubes or tapes, which made
by label, which are special attention part. by insulator, and some components are
Please follow to note and [Safety Instructions] keep distance from surface of PWB for
of User's Manual. safety.
Prevent the electric shock. Internal leads kept from hot part or high voltage
Please take care during working because part by clamper or styling, so please return to
monitor has high voltage part and power original condition for prevent to electric shock
supply part. or fire.
Possible to die if you tough to these place Should be done safety check after finished.
by miss take. Every part (removed screws, component
Please disconnect power plug during and wiring) should be returned to previous
overhaul, reassemble or change parts. condition.
You will die or take damage by electric Check around repair position for make
shock if you touch to live part. damage by miss take and measure the
Use recommended components. insulated impedance by meg-ohm meter.
Please use to same characteristic compo- Confirm the value of impedance, that val-
nent, which is same as previous for your ue is more than 4M ohm.
safety and keep reliability especially marked It is reason for electric shock or fire if that
by in parts list and circuit diagram. value is less than 4M ohm.
It is reason of electric shock or fire if you
use non-recommended component.

2
42PD9800TA (FW1)

PRECAUTIONS
How to clean the plasma screen panel 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 knock or rub the surface with sharp or
hard objects. Clean the screen with a soft cloth moistened with warm water and dry with a soft cloth. If it is
not enough, then use a cloth with mild detergent. Do not use harsh or abrasive cleaners.
How to clean the cabinet of the monitor
Use a soft cloth to clean the cabinet and control panel of the monitor. When excessively soiled dilute a neu-
tral detergent in water, wet and wring out the soft cloth and afterward wipe with a dry soft cloth.
Never use acid/alkaline detergent, alcoholic detergent, abrasive cleaner, powder soap, OA cleaner, car wax,
glass cleaner, etc. especially because they would cause discoloration, scratches or cracks.

1. Features
Large-screen, high-definition plasma display panel
The 42-inch color plasma display panel, with a resolution of 1024 (H) x 1080 (V) pixels, creates a high-definition,
large-screen(aspect ratio : 16:9) and low-profile flat display. Free from electromagnetic interferences from geo-
magnetic sources and ambient power lines, the panel produces high-quality display images free from color mis-
convergence and display distortion.
High Performance Digital Processor
A wide range of input signals can be handed,including composite, component,and HDMI.High Definition Digital
Processor creates the fine-textured image with dynamic contrast. In addition, it corresponds to a broad array of
personal computer signals, from 640 x 400 and 640 x 480 VGA to 1280 x 1024 SXGA.(RGB Input)
Easy-to-use remote control and on screen display system
The remote control included eases the work of setting display controls. Further, the on-screen display sys-
tem, displays the status of signal reception and display control settings in an easy-to-view fashion.
Power saving system
The power saver feature saves power consumption automatically when input signals are not available.
When connected to a VESA DPMS-compliant PC, the monitor cuts its power consumption while it is idle.
Connecting to an Audio Visual Device

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