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Simple and fast...
The diagrams are clear and legible; i have been a great help.
The site is very reliable and precise thanks.
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Very easy site. Great service and quick release for download. Manuals are of good quality.
Joop - The Netherlands
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Very good manual, in depth and complete. Only criticism is that some of the circuit diagrams are slightly blurry and hard to follow for long periods of time, but this is to be expected. Perfect for any maintenance required. Also contains the wiring diagrams of the control cable for constructing extensions.
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Received a quick response, material was exactly what it was supposed to be. The service did everything I expected it to do. would use service again.
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Detailed SONY CFD980 Service Manual at an easy to find one stop shopping. Make my radio hobby technically interesting. Thanks.
ELECTRICAL TROUBLESHOOTING -1/17 1. Power Circuit(SMPS) (1) No 5.3VA.
No 5.3VA. YES Is the F101 normal? YES Is the BD101 normal? YES Is the R101 normal? YES Does the oscillation waveform appear at the IC101 Pin 1? YES NO Is Vcc(about 15~19V) permittable at the IC101 Pin 4? NO Check or Replace the D103. NO Replace the R101. NO Replace the BD101. NO Replace the F101 (Use the same Fuse).
Is there DC voltage at the IC101 Pin 4? YES Is there about 2.5V at the IC103 Vref ? YES Is the D106 normal? YES Check the MAIN C.B 5.3VA/5.0V Line short?
NO
Replace the IC102.
NO
Replace the IC103.
NO
Replace the D106.
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