SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT.
Multimedia LCD Projector
July 2009
YK
No.0628E
CP-RX78
(C15-20EE)
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) and power unit (ballast), after 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 speci
fi
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 Consumer Electronics Co., Ltd.
1. Features ------------------------------------------------------ 2
2. Speci
fi
cations ----------------------------------------------- 2
3. Names of each part ---------------------------------------- 3
4. Adjustment --------------------------------------------------- 4
5. Troubleshooting ------------------------------------------ 10
6. Service points --------------------------------------------- 14
7. Wiring diagram
-------------------------------------------- 30
8. Disassembly diagram ----------------------------------- 36
9. Replacement parts list ---------------------------------- 45
10. Block diagram --------------------------------------------- 46
11. Connector connection diagram ----------------------- 47
12. Basic circuit diagram ------------------------------------ 48
Contents
Summary of Contents for C15-20EE
Page 46: ...46 CP RX78 C15 20EE 10 Block diagram VIDEO ...
Page 47: ...47 CP RX78 C15 20EE 11 Connector connection diagram ...
Page 49: ...CP RX78 C15 20EE 1 2 3 4 5 6 1 2 3 4 5 6 A B C D E F G POWER UNIT BALLAST 1 CONFIDENTIAL ...
Page 50: ...CP RX78 C15 20EE 1 2 3 4 5 6 1 2 3 4 5 6 A B C D E F G POWER UNIT BALLAST 2 CONFIDENTIAL ...
Page 51: ...CP RX78 C15 20EE 1 2 3 4 5 6 1 2 3 4 5 6 A B C D E F G POWER UNIT CIRCUIT CONFIDENTIAL ...
Page 52: ...CP RX78 C15 20EE 1 2 3 4 5 6 1 2 3 4 5 6 A B C D E F G PWB assembly MAIN 1 CONFIDENTIAL ...
Page 54: ...CP RX78 C15 20EE 1 2 3 4 5 6 1 2 3 4 5 6 A B C D E F G PWB assembly MAIN 3 CONFIDENTIAL ...
Page 55: ...CP RX78 C15 20EE 1 2 3 4 5 6 1 2 3 4 5 6 A B C D E F G PWB assembly MAIN 4 CONFIDENTIAL ...
Page 60: ...CP RX78 C15 20EE 1 2 3 4 5 6 1 2 3 4 5 6 A B C D E F G PWB assembly MAIN 9 CONFIDENTIAL ...
Page 61: ...CP RX78 C15 20EE 1 2 3 4 5 6 1 2 3 4 5 6 A B C D E F G PWB assembly MAIN 10 CONFIDENTIAL ...
Page 62: ...CP RX78 C15 20EE 1 2 3 4 5 6 1 2 3 4 5 6 A B C D E F G PWB assembly MAIN 11 CONFIDENTIAL ...
Page 63: ...CP RX78 C15 20EE 1 2 3 4 5 6 1 2 3 4 5 6 A B C D E F G PWB assembly MAIN 12 CONFIDENTIAL ...
Page 64: ...CP RX78 C15 20EE 1 2 3 4 5 6 1 2 3 4 5 6 A B C D E F G PWB assembly MAIN 13 CONFIDENTIAL ...
Page 66: ...QR78621 CP RX78 YK No 0628E ...
