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IC1113,Q1118,Q1121
IC301, D301.
NORMAL
Check the voltage
at pin 1,6 of IC301.
Check the waveform
at pin 12 of IC11.
Check the waveform
at pin 19,20 of IC1113.
Check / Replace
Check / Replace
Q1274,IC1101.
Check / Replace
IC11.
Check / Replace
Check / Replace
FR359,FR360,D339,D349.
NO
pin 21,22 of IC601.
Check the waveform at
pin 1,3 of IC602.
Check the waveform at
IC601.
Check / Replace
H/P JACK.
Check / Replace
IC602.
Check / Replace