Hitachi CP-DX250 guide, Service Manual

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SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT.
Multimedia DLP Projector
December 2012
YK
No.0682E
CP-DX250/CP-DX300
(DL1-X25/DL1-X30)
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 Hitachi Multimedia DLP 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 fingers. The lamp becomes too hot.
2. Never touch the lamp bulb with a finger 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) and power unit (ballast), after turn on the projector.
4. Do not touch the exhaust fan, during operation.
5. Use the cables which are included with the projector or speci fied.
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 Consumer Electronics Co., Ltd.
1. Features ------------------------------------------------------ 2
2. Specifications ----------------------------------------------- 3
3. Names of each part ----------------------------------------10
4. Adjustment ---------------------------------------------------13
5. Troubleshooting ------------------------------------------ 25
6. Service points --------------------------------------------- 35 7. Wiring diagram -------------------------------------------- 40
8. Disassembly diagram ----------------------------------- 55
9. Replacement parts list ---------------------------------- 58
10. Block diagram --------------------------------------------- 59
11.
- 60 RS-232------------------ -----------------------------------
Contents
6. The pictures and illustrations in this manual are for illustrative purposes.
They may differ slightly from the projector you work on.