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4.No Sound(Picture OK)
START
NO
Check voltage
Check R211. Q204.Q205
at IC201 PIN9 20V
R213.D911.C924.C218
YES
NO
Check the IC201
Check IC301 PIN6.47
PIN2,5 AUDIO SIGNAL
YES
NO
Check the IC 201
Check IC201,C207
of PIN4(20V)
YES
NO
Check the speaker
Check R. L speaker wire
PIN +. -
YES
Check the R. L speaker
SM-74PM.P18
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