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There are currently no product reviews.
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Great scanned service manual
Usefull informations.
I will buy again!
Best Regards
;
The manual describes this product very good. It has the basic things to know and also a more detailed look. Very well made!
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An excellent document to assist in the repair of my old personal tape player. It includes full circuit diagrams and physical layout drawings and full instructions on disassembly and fault finding.
Well worth the meagre price.
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Very good conversation, Pretty fast Service, wood do it again,
Have paid by Paypal, so i got the Service Manual online after 15 Min.
Very helpfully.
Greeting from Germany,
Hans
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Good-quality scans. Detailed description. I hope I can repair the machine.
1-3 All output voltages on the power board is 0V or deviated.
Trouble shooting chart
All output voltages on the power board is 0V or deviated Yes
Check whether F1 is blown
Yes Replace F1
No
Check
whether
No
Replace C1&C2 if D1, D2, D3, D4 are normal.
there is 300V on C1
Yes
Check whether 100KHz oscillating signal on Pin6 of U1
No
Check/ replace U1. U1(PIN 3 - RC waveform) U1(PIN 8 - Drain waveform)
Yes
Check if +5V, , +12V and -12V are short.
No Check whether U1 are eroded.
Yes Check whether the components in the short-circuit voltage are defected or eroded.
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