Read Sharp PG-M25XE (serv.man11) Service Manual online
29
PG-M25X
Yes
No
Checking of Power Unit
Are connectors in the power unit
completely inserted?
completely inserted?
Yes
No
Is the lamp door closed
completely?
completely?
Close the lamp door completely by
screws.
screws.
Yes
No
Does the temperature
fuse function?
fuse function?
Replace the fuse as well as its
harness.
harness.
Yes
No
Is AC voltage applied across relay
RL7001?
RL7001?
Replace F701.
Yes
No
Is there DC voltage of about 6V at
pin (1) of CN7002?
pin (1) of CN7002?
Check Q7501, Q7502 and Q7503
and their peripheral circuits. If any
circuit is damaged, replace it.
and their peripheral circuits. If any
circuit is damaged, replace it.
Yes
No
Is there DC voltage of about 370V
across CN702?
across CN702?
Check the circuits connected to the
primary side of T701. If any circuit
is damaged, replace it.
primary side of T701. If any circuit
is damaged, replace it.
Yes
No
Is there rated voltage at the output
terminals of CN7001 and CN7102?
terminals of CN7001 and CN7102?
Check the circuits connected to the
secondary side of T701. If any
circuit is damaged, replace it.
secondary side of T701. If any
circuit is damaged, replace it.
Check the PWB circuits of relevant
output sides.
output sides.
Insert the connectors CN702,
CN704, CN7003, CN7001,
CN7004 and CN7101 completely.
CN704, CN7003, CN7001,
CN7004 and CN7101 completely.
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