Hitachi CP-X880 Service Manual page 12

Power can not be turned on
Are voltage
input on the PWB
assembly Drive at
standby mode?
E800
1
E800
4
YES
E800
6
E800
12
What is the state of
LAMP indicator
D302?
Not light
Power unit (ballast)
PWB assembly Drive
CP-X880/CP-X885
Disconnect
TSW from Power unit
NO
(circuit). And check
TSW short or
open?
: +16.5V
: +15V
Short
: +4V
: +6V
Power unit (circuit)
Blinks
Is the LAMP COVER
set?
Lights
OK
Lamp
or
Is the LAMP
connection?
OK
Is the
voltage at pin
of E807 same?
NO
PWB assembly Limit SW
12
Open
TSW
Fuse
on Power unit (circuit)
NG
Set the LAMP COVER
NG
Set the LAMP again
YES
and
1 2
PWB assembly Drive