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It is pretty good. The schematics were covered all components, the manual also provide the parts list . It's useful for the trouble shooting.
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Very fast service, best quality of the service manual and the schematics
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This service manual of the old video cassette recorder VT-LC50EM is very good readable even the tiniest numbers (i.e. IC-pins). The circuits are very clear. Many details of the schematic are very good described but in GERMAN language. Many schematic details - but complete at all. Common background information of several details are enclosed and physical knowledge of the TFT liquid crystal display for example. The manual lacks PCB drawings. If you understand german I would recommend this manual for you.
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Hi, this is a very clear manual, nice copy, not quite up to the standard of the very best available but better than many others. I think the price was especially fair for a hard to find manual and I would certainly use this manual seller again. Recommended.
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This schema available for me in good condition. I would highly recommend.
A
Set the handset in the NG test mode 3, check whether deviation of the TX data is app. 9.0 kHz Dev.
Check whether there is a NG 250 Hz data waveform at RT602. OK Check handset RF section.
Check R712, R713, R716, R717, R668, C719, C748 and RT602.
OK Set the handset in the NG test mode 6, 926.997467 MHz (250 Hz ±8 kHz Dev.) 1mV output signal from RF test point is applied. Check whether the bell ring. OK Place the handset on the base to charge about 5 seconds, then connect again. Check whether the 250 NG Hz data waveform from Pin 9 of IC603 is fed. OK Check IC603 and its peripheral circuit. OK NG Check handset RF section.
Check whether there is a NG 250 Hz data waveform at Pin 10 of IC602. OK Check whether there is a NG 250 Hz data waveform at Pin 55 of IC608. OK Check IC608 and its peripheral circuit.
Check IC602, Q601 and their peripheral circuits.
Check R648, R649, IC602 and their peripheral circuits.
� 19 �
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