Hitachi 42HDM12, Service Manual

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1
No.
HITACHI
SERVICE MANUAL
42HDM12
Be sure to read this manual before servicing. To ensure safety from fire, electric shock, injury, harmful
radiation and materials, various measures are provided in this Plasma Monitor.
Be sure to read cautionary items described in the manual before servicing.
These servicing instructions are for use by qualified service personnel only. To reduce the risk of electric
shock, do not perform any servicing other than that described in the operating instructions unless you are
qualified to do so.
1. Since the Panel Module and the front Filter are made of glass, handling the broken Module and Filter
carefully and with caution in order not to receive injury.
2. Replacement work should be started after the Panel Module and the AC/DC Power supply have
become sufficiently cool.
3. Special care should be taken when working near the display area in order not to damage its surface.
4. The Panel Module should not be touched with bare hands in order to protect its surface from
blemishes and damage.
5. It is recommended that you use clean soft gloves during the replacement work in order to protect not
only the display area of the Panel Module but also yourself.
1. Features -------------------------------------------3
2. Specifications ------------------------------------4
3. Component Names -----------------------------5
4. Service points ------------------------------------7
5. Adjustment ----------------------------------------8
6. Troubleshooting --------------------------------11
7. Block diagram ---------------------------------- 22
8. Connection diagram ---------------------------- 24
9. Wiring diagram ----------------------------------- 25
10. Basic block diagram --------------------------- 26
11. Printed wiring board diagram ---------------- 27
12. Disassembly diagram ------------------------- 34
13. Replacement parts list ------------------------ 36
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT.
Plasma Monitor
Caution
Contents
Service Warning