Hitachi C3S3, Service Manual, Page: 1 / 69

SM0524
CPX327(C3XM3)
EDS3170(C3S3)
EDX3270(C3XM3)
EDS3170A(C3S3E)
EDX3270A(C3XM3)
ED-X3250AT(C3X3ET)
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT.
Multimedia LCD Projector
January 2003 Digital Media Division
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 LCD Projector. Be sure
to read cautionary items described in the manual to maintain safety before servicing.
Caution
1. When replacing the lamp, avoid burns to your fingers. The lamp becomes very 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 (main), when turning on the projector.
4. Do not touch the exhaust fan, during operation.
5. The LCD module assembly is likely to be damaged. If replacing the LCD module assembly, do not hold
the FPC of the LCD module assembly.
6. Use the cables which are included with the projector or specified
Service Warning
1. Features --------------------------------------------------- 2
2. Specifi cations--------------------------------------------- 2
3. Names of each part ------------------------------------ 5
4. Adjustment ------------------------------------------------
7
5. Troubleshooting---------------------------------------- 13
6. Service points ------------------------------------------ 18
7. Block diagram ------------------------------------------ 30
8. Connector connection diagram -------------------- 32
9. Wiring diagram -----------------------------------------
34
10.Basic circuit diagrams------------------------------- 40
11.Disassembly diagram --------------------------------- 59
12.Replacement parts list-------------------------------- 61
13.RS-232C communication ---------------------------- 64
Contents
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CPS317(C3S3)
EDX3280AT(C3XM4ET)