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I was very glad recieving the service manal from You. Manuals were delivered promptly and were correct as advertised. A complete and very usefull service manual with all details. Thank you!
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Very clear copy. No pages missing. Big bonus is that it includes supplement. Price is affordable compared to what others ask for.
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Found the quality of the copy excellent and a very quick service. I would certainly recommend the service.
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Good quality, clear diagrams. Exactly what I needed.
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Good product. All the information is invcluded, but due to the complexity of the amplifier, it still is difficult to get it to operation again.
7. The voice of the caller cannot be heard (incoming call).
Can the base and handset be connected?
NG
See 3. The base and handset cannot be connected
OK
The 1 kHz, -20 dBm sine waveform is applied to TELline of the base, can the 1 kHz sine waveform from the Q5 collector be fed?
NG
Check the base TEL-line circuit and REPLAY control circuit.
OK
Check whether there is the 1 kHz sine waveform at pin 37 of IC 7.
NG
Check Q5 and its peripheral circuit.
OK
Check whether there is the 1 kHz sine waveform at pin 46 of IC604.
NG
Check IC604 and its peripheral circuit.
OK
Check whether there is the 1 kHz sine waveform at the collector of Q614 and the emitter of Q615.
NG
Check Q614 and Q615.
OK
Check SP801.
17
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