Developer Supply Pimp Not Operating - Konica Minolta SRX-101A Service Manual

6. The developer supply
pump (P3) is not operating.
Are the other electrical loads
functioning properly?
NO
Is the CPU board fuse (F1)
blown?
NO
Is AC 100V being supplied to
terminal board TB1 terminals
#13 and #14?
YES
Is AC 100V being supplied to
JP12?
YES
Is AC100V being supplied to
JP8?
YES
Check the wiring connecting the
developer circulation pump (P3) to
JP8.
YES
Check the connection to connector
JJ8 and the terminal voltage.
YES
Replace the fuse (F1) on the
CPU board.
NO
Check the wiring from the
transformer to TB1.
NO
Check the wiring connecting
JP12 to TB1.
NO
Check the wiring connecting JP8
to the CPU board
Repair any wiring breaks or
replace the circulation pump.
TROUBLE SHOOTING
If all checks are OK, repair any
wiring breaks and/or replace the
pump.
If all checks are OK, replace the
transformer.
Repair any breaks or replace the
wiring.
If all checks are OK, replace the
CPU board.
SERVICE MANUAL
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