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Sony Discman D-10 stops unexpectedly while playing

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Post time: 2019-11-04 07:08:30
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Edited by nhatminh2007 at 2019-11-04 07:17

     I have a Sony discman D-10 that is working properly. One day, while playing music, suddenly stopped playing for unknown reasons. When you press PLAY, the LCD screen only shows "00" and turns off after a few seconds.
When I checked, I discovered Diodes D813, D817 was broken and showed signs of PCB peeling. I have replaced 1SS123 with BAV199, RD12M-B2 with 1N4148. But the situation remained unchanged, I observed that when "PLAY" the spindle motor and laser pickup motor were not moving.
Please ask me which parts should be tested and replaced? Thank you!


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Post time: Yesterday 18:48
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Replacing the burnt diodes is necessary. Then:
1: Check CPU outputs "power on" signal to DC-DC circuit;
2: DC-DC circuit generates +5V and -5V. If +5V disappears, no motor action just like your case; if no -5V, no audio.
3: For detail, you can find the service manual from our website.
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 Author| Post time: Yesterday 23:08
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Edited by nhatminh2007 at 2019-11-11 23:34

Thank you, the problem has been solved! Now It can play music back as before  but I found out there is a pcommon noise with the music, the "background" is not clean! I have checked all grounding and did not find any abnormal! Can i replace the 220uf / 16v x3, 470uf / 6.3v, 100uf / 10v x2 capacitors? because on the PCB I see traces of electrolyte leaking out!


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