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OK?..manual is complet and helpfull... for repairing such a old and rare boombox like JVC PCM it is necessary...
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Super Anleitung. Ordentliche Auflösung. Das ganze noch in Deutsch wäre zu schön. Alle Datenblätter sind sauber Kopiert und alle Leitungswege sind sauber ausgeführt
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Thanks God for the internet and thanks for the service like this - proffessional solution on time.
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About the service it's very fast and reliable. About the manual the quality is high enough to read even the tiniest details on the wiring diagrams so you can't ask much more than that, let it alone for a manual of a product from 20 years ago. Thank you, very satisfied.
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The downloaded quality was as good as the orignial
6. Voice cannot be transmitted to other party (outgoing call).
Check the handset MIC sensitivity. OK Check the handset TX AF circuit (around Pins 17, 19~21 of IC504). NG At the MIC of the handset, does the bias voltage exist? OK Check the base RX TEL-line out. OK NG In the base, with the SG standard modulation of 1kHz 3kHz deviation and input signal of 1mV, can the sine wave be seen at Pin 25 of IC1? OK NG NG Check R548, R534, R532 and C555.
Check the base IF circuit (around Pins 26~29 of IC1).
Then, can the sine wave be seen at Pin 24 of IC1? OK Then, can the sine wave be seen at the Q2 collector? OK Check the sorrounding circuit of T1.
NG
Check circuit around Pin 24 of IC1.
NG
Check Q2 and the sorrounding circuit of Q2.
Check the base RX sensitivity. OK The handset MIC is defective.
NG
Check the base RX TEL-line out. OK Check RX RF and mixer circuit of the base (around Q1) as well as FT3 and FT2.
NG
� 17 �
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