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The document was usefull, and it was exactly what I was looking for.
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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.
KRF-V5050D/V5550D/V6050D/V7050D/X9050D
CIRCUIT DESCRIPTION
4. AK4112AVF u-com interface port
Pin Name Pin No. PD 7 AUTO 5 FS96 17 ERF 18 CSN 25 CCLK 26 CDTI 27 CDTO 28 I/O I O O O I I I O Function Power Down Mode Pin When "L", the AK4112AVF is power down and reset. Non PCM Detect Pin "L":No detect, "H":Detect 96kHz Sampling Detect Pin "H":fs=88.2kHz or more, "L":fs=54kHz or less. Unlock & Parity Error Output Pin "L":No Error, "H":Error Chip Select pin in Serial Mode Control Data Clock Pin in Serial Mode Control Data Input Pin in Serial Mode Control Data Output Pin in Serial
5. AK4527B u-com interface port
Pin Name Pin No. PDN 17 OVF 33 CSN 41 CCLK 42 CDTI 43 I/O I O I I I Function Power Down & Reset Pin Analog Overflow Detect Pin Chip Select Pin Control Data Clock Pin Control Data Input Pin
6. Test Mode
6-1 Entering the Test Mode
� While pressing the "BAND" key, plug the power cord into AC wall outlet.
6-2 Cancelling the Test Mode
� Initialized and cancel the test mode if pulling out the power code.
6-3 Contents of the Test Mode 6-3-1 Pch CALL UP/DOWN
Key DIMMER Function Pch CALL UP ... 01 02 03 Pch CALL DOWN ... 01 02 03
... ...
39 40
INPUT MODE
39 40
6-3-2 10 Steps Switching of P ch Call
Key SET UP Function Preset Operation
6-3-3 TUNER mute on/off
Key LISTEN MODE Function TUNER mute on/off
6-3-4 Key Operation
� The following operation is available during the all FL lighting up mode only.(only VR-507/509/510) Operation Keys Display Function SOUND Normal Indication RF receiving frequency is made 422MHz for VR-509/510 and 418MHz for VR-507. LISTEN MODE FRONT IR FRONT IR is enabled and remote control is disabled. SOURCE DIRECT RF BAND 2 RF receiving frequency is made 428MHz for VR-509/510.
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