Read Sony DAR-RD100 / HTR-210SS Service Manual online
6-2
No 33VT
Is the R139 Normal?
Is there about 33V at the
Q123 pin1?
Q123 pin1?
Is the ZD152 is normal?
Check or Replace the D128
YES
Check or Replace
the Q123
the Q123
Replace the R139
NO
NO
NO
Replace the ZD152
YES
YES
Check or Replace the D134
No 5.0VT
Is the Vcc(5.3V) supplied
to Q124 Emittor?
to Q124 Emittor?
Check or Replace the Q124
Is the Q122 Base ‘H’?
NO
NO
YES
Check the TIMER “H”
signal from µ-com
signal from µ-com
YES
YES
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