Sony SSC-M183 Service Manual page 31

Measure the voltage of each pin
of CN102 on the power (AC) board.
Measurement point: CN102/AC
Pin 1 = 15 V
Pin 2 = 9 V
Pin 3 = 5 V
Pin 4 = 3.3 V
Pin 5 = _7 V
Is the output
voltage normal?
Check the connection of the
flexible flat cable connecting
the main (PC) board and
the front (F) board.
Is the image displayed?
Check the image after disconnecting
the flexible flat cable from the main
(PC) board and the front (F) board.
Is the noise level
of the image higher than
that under normal
Replace the front (F) board.
SSC-M183/M183CE/M188CE/M383/M383CE/M388CE
SSC-DC193/DC193P/DC198P/DC393/DC393P/DC398P
From A
board
No
Yes
No
Yes
No
state?
Yes
Replace the power (AC) board.
Replace the flexible flat cable.
Replace the main (PC) board.
3-5