Sharp XV-Z90E Serviceanleitung Seite 22

XV-Z90E
XV-Z91E
Checking of Power Unit
Are connectors in the power unit
completely inserted?
Yes
Is the lamp door closed
completely?
Yes
Is the bimetal switch not cff?
Yes
Is AC voltage applied to AC input
both ends of D7001?
Yes
Is DC voltage about 6V on C7105
both ends?
Yes
Is voltage about 360 V DC on the
cathode of D7004?
Yes
Is there rated voltage at the output
terminals of CN7101 and CN7102?
Yes
Check the PWB circuits of relevant
output sides.
No
Securely insert each connector.
No
Close the lamp door completely by
screws.
No
Replace the bimetal switch or
press the red button to recover.
No
Replace F7001.
Replace if any other damages, etc.
Check around IC7003 of the
No
primary side and D7103.
Replace if any damages, etc.
Check the primary side circuit of
No
IC7001, etc. Replace if any
damages, etc.
Check the secondly side circuit of
No
T7001, etc. Replace if any
damages, etc.
22
No
Replace the ballast power
source side.