Hitachi CP-WX11000 Service Manual page 17

Cannot control RS-232C
Check the
RS-232C cable.
Are pin No. 2 and 3
crossed?
YES
Are the
signals input at each
pins on the CONTROL
Port?
Pin
Pin
NO
Check PC setup
CP-WX11000 ( P6WX )
NO
Use crossed cable
YES
PWB assembly MAIN
: RX
: TX
PWB assembly INPUT A
17
Check after parts change
1. PC power supply OFF
2. Connection of cable
3. Projector starts
4. PC starting
*When not operating :
PC set up change of cable.