M Board. - Sony VPL-X2000U Service Manual

(2) The standby power is output, but no power from the analog circuit (+6.2V, 13.5V, 17V) is output even if the power is
turned ON.
4-4
START
Pin A6 of CN7502 is not H (5V).
NO
Is the IC link of each output open?
(PS7602 to PS7604)
NO
Check if D7604 has short-circuited,
and replace if it has.
Is R7601 open?
NO
END
YES
No power ON signal is output from
the microprocessor side. Check
the M board.
YES
Check if any of the outputs has short
-circuited with GND at the load side.
YES
Check if IC7601 is damaged.