Sharp DT-200, Service Manual

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25
XV-Z90U
DT-200
Yes
No
Checking of Power Unit
Are connectors in the power unit
completely inserted?
Yes
No
Is the lamp door closed
completely?
Close the lamp door completely by
screws.
Yes
No
Is the bimetal switch not cut?
Replace the bimetal switch or
press the red button to recover.
Yes
No
Is AC voltage applied to AC input
both ends of D7001?
Replace F7001.
Replace if any other damages, etc.
Yes
No
Is DC voltage about 6V on C7105
both ends?
Check around IC7003 of the
primary side and D7103.
Replace if any damages, etc.
Yes
No
Is voltage about 360 V DC on the
cathode of D7004? Replace the ballast power
source side.
Yes
No
Is there rated voltage at the output
terminals of CN7101 and CN7102?
Check the secondly side circuit of
T7001, etc. Replace if any
damages, etc.
No
Check the primary side circuit of
IC7001, etc. Replace if any
damages, etc.
Check the PWB circuits of relevant
output sides.
Securely insert each connector.