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There are currently no product reviews.
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It`s not your fault tear down is rather incomplete. It doesn`t have complete instructions as to deconstruction for repair.
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THANK YOU FOR A GOOD TRANSACTION, NICE COPY, CLEAR
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Very Good! All the diagram are easy to read, and its complete.
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This was an excellent source of detailed assembly information on a device which is at least 12 years old. A very lucky find, coupled with great service.
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Excellent Service Manual and best price on the Internet. This Service Manual covers everything you could ever need including full circuit schematics, component layout diagrams, stripdown procedure and full parts list/breakdown. I needed this to carry out a modification to one of these headunits and this manual covered everything I needed. Fast delivery, processed within a few hours.
Set the handset in the test mode 3, check whether deviation of the TX data is app. 7 kHz Dev. OK
NG
Check whether there is a 250Hz data waveform at Pin 9 of J601. OK
NG
Check VR601, R619, R632, R634, R635, R636 and C611.
Check handset RF unit.
Set the handset in the test mode 6, 927.000602 MHz (250 Hz ±7 kHz Dev.) 1mV output signal from RF jack is applied. Check whether the bell ring. OK Place the handset on the base to charge about 5 seconds, then connect again.
NG
Check whether the 250 Hz data wareform from Pin 1 of J601 is fed. OK Check whether there is a 250 Hz data waveform at the Q601 collector. OK
NG Check handset RF unit.
NG
Check VR602, Q601 and their peripheral circuits.
Check whether there is a 250 Hz data waveform at Pin 55 of IC603. OK Check IC603 and its peripheral circuit.
NG
Check Q602, Q604 and their peripheral circuits.
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