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Good quality, the manual help me to repair the echo/reverb section
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A good service manual with lots of info and a very fair price
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Great value, good scan, just as expected, everything that you need.
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Good scan, great price, but almost the same with the SV260 service manual.
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This PDF is very comprehensive. It includes drawings, parts lists, schematics, pictures, PCB drawings, mechanical layouts, etc. for all three stackable equipment. The scans are good too. Easy to read and no smudges or black lines. I have no complaints. I will make this site my first stop for finding my service manuals.
7. The voice of the caller cannot be heard (incoming call).
Can the base and handset be connected? OK The 1kHz 97.5mV sine waveform is applied to TEL-line of the base, can the 1kHz sine waveform from the Q1 collector be fed? OK Check whether there is the 1kHz sine waveform at Pin13 of IC1. OK Check whether there is the 1kHz sine waveform at Pin9 of IC1. OK TX output signal from the base is detected by the liner detector, can the 1kHz 3kHz Dev. sine waveform be fed? OK Check whether there is the 1kHz sine waveform at Pin16 of IC501. OK Check whether there is the 1kHz sine waveform at Pin19 and 20 of IC501. OK Check whether there is the 1kHz sine waveform during for Pin1 and 2 of J501. OK NG NG Check IC501 and Pin17~20 peripheral circuits of IC501. NG Check IC501 and Pin15~16 peripheral circuits of IC501. NG NG Check IC1 and Pin9~11 peripheral circuits of IC1. NG Check IC1 and Pin13~14 peripheral circuits of IC1. NG Check the base TEL-line circuit and RELAY control circuit. NG See 3. The base and handset be cannot be connected.
Check C65 and R51.
Check J501 and its soldering.
Check SP801 and WA801.
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