SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT.
Multimedia LCD Projector
August 2005
Digital Media Division
YK
No.0556E
PJ-LC9
(C12H)
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 are provided in this Hitachi Multimedia LCD Projector. Be
sure to read cautionary items described in the manual to maintain safety before servicing.
Caution
1. When replace the lamp, to avoid burns to your fi ngers. The lamp becomes too hot.
2. Never touch the lamp bulb with a fi nger or anything else. Never drop it or give it a shock. They may
cause bursting of the bulb.
3. This projector is provided with a high voltage circuit for the lamp. Do not touch the electric parts of
power unit (circuit/ballast), when turn on the projector.
4. Do not touch the exhaust fan, during operation.
5. The LCD module assembly is likely to be damaged. If replacing to the LCD/PRISM assembly, do not
hold the FPC of the LCD module assembly.
6. Use the cables which are included with the projector or specifi ed.
Service Warning
Warning
The technical information and parts shown in this
manual are not to be used for: the development,
design, production, storage or use of nuclear, chemical,
biological or missile weapons or other weapons of
mass destruction; or military purposes; or purposes that
endanger global safety and peace. Moreover, do not
sell, give, or export these items, or grant permission for
use to parties with such objectives. Forward all inquiries
to Hitachi Ltd.
1. Features ----------------------------------------------- 2
2. Specifi cations ----------------------------------------- 2
3. Names of each part --------------------------------- 3
4. Adjustment -------------------------------------------- 5
5. Troubleshooting ------------------------------------ 11
6. Service points -------------------------------------- 16
7. Wiring diagram ------------------------------------- 29
8. Disassembly diagram
----------------------------- 33
9. Replacement parts list
---------------------------- 41
10.RS-232C communication ------------------------ 42
11. Block diagram -------------------------------------- 50
12. Connector connection diagram ---------------- 51
13.Basic circuit diagram ------------------------------ 52
Contents
ED-PJ32
Summary of Contents for EDPJ32
Page 34: ...34 PJ LC9 C12H ...
Page 51: ...51 PJ LC9 C12H 12 Connector connection diagram Connector connection diagram CN103 ...
Page 55: ...1 2 3 4 5 6 6 1 2 3 4 5 D G F E C B A PWB assembly MAIN 1 C12H ...
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Page 66: ...MEMO ...
Page 68: ...QR65311 Digital Media Division Printed in Japan JE PJ LC9 YK No 0556 ...
