Hitachi CPX380W Service Manual page 13

Power cannot be turned on
Are these
NO
voltages present on the
Drive PCB at standby
mode?
I812 : +14V
1
IV22 : +17V
1
YES
I102 : +6V
1
I841 : +4.3V
1
What is the state of Lights
TEMP indicator
D301?
Blinks
No light
Blinks
What is the state of
LAMP indicator
D302?
No light
Power Unit (Ballast)
Drive PCB
Disconnect
TSW from Power Unit
(Circuit). And check
TSW short or
open?
Short
Power Unit (Circuit)
DC FAN (intake)
DC FAN (exhaust)
or
Sensor PCB
Is the LAMP COVER
set?
OK
Lamp
or
Is the LAMP
connected?
OK
Are the
voltages at pin and
1
of E807 the same?
NO
Limit SW PCB
Open
TSW
Fuse
on Power Unit (Circuit)
NG
Set the LAMP COVER
NG
Set the LAMP again
YES
2
Drive PCB
PJ750-2
CP-X380W
13