SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT.
 
Multimedia LCD Projector
 
August  2006
CP-X608(EDX40WL)
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  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 the LCD LENS/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 --------------------------------------------------- 6
5. Troubleshooting ------------------------------------------ 13
6. Service points --------------------------------------------- 27
7. Wiring diagram -------------------------------------------- 45
8. Disassembly diagram ----------------------------------- 56
9. Replacement parts list ---------------------------------- 65
10.RS-232C communication ------------------------------- 66
11. Block diagram --------------------------------------------- 79
12. Connector connection diagram ----------------------- 80
13.Basic circuit diagram ------------------------------------ 81
Contents 
SM0573