Hitachi CP-X980W Service Manual page 19

No sound
Change the SPEAKER.
NO
Does sound on ?
YES
SPEAKER
Can not control to mouse
RS-232C not control
Change the PWB
NO
ass'y DRIVE.
Does control to
mouse ?
YES
PWB ass'y DRIVE
Can not control to USB mouse
Change the PWB
NO
ass'y FAN.
Does control to
USB mouse ?
YES
PWB ass'y FAN
Change the PWB
NO
ass'y FAN.
Does sound on ?
YES
Change the PWB
ass'y DRIVE.
PWB ass'y FAN Does sound on ?
PWB ass'y DRIVE
Change the PWB
NO
ass'y FAN.
Does control to
mouse ?
PWB ass'y RGB
YES
PWB ass'y FAN
Change the PWB
NO
ass'y DRIVE.
Does control to
USB mouse ?
YES
Change the PWB
ass'y RGB.
Does control to
PWB ass'y DRIVE
USB mouse ?
PWB ass'y RGB
NO
YES
Change the PWB
ass'y RGB.
Does sound on ?
YES
PWB ass'y RGB
NO
PWB ass'y VIDEO
YES
CP-X980W
CP-X985W
NO
PWB ass'y VIDEO
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