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This manual was the factory original. Excellent value and contained all the details I needed. Easy dowwnload provided the information when I needed it.
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Impeccable, document très complet. Perfect, i get all i need. All schematic are correct. Thanks
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The manual is of better quality compared to other. I found it less expensive and therefore it it is the best buy cost vs quality.
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I bought the service-manual of the sony ICB-1020(an old transmitter-receiver) at "www.Owners-Manual.com", I found the service-manual for a fairly cheap price(in comparison with other sellers). I filled in some questions, payed the order with Ideal, and within 24 hours I had my service manual. I was very happy:In no time I had my service-manual and everything, but literally everything was noted down in the manual; the electronic scheme, the parts list, etcetera.
A very practical, reference-document.
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This comprehesive service maual was greatly appreciated, as was the digital download.
5-5. Power down detection circuit
IC48 : Detection IC The power is supplied at CN16 from switching power supply unit. When the VP voltage become more than 22V, the voltage appears at pin No.2 of IC48 through the zener diode ZD2. The detection IC outputs "High" signal from pin No.6 and its signal going to IC45. Then, the signal "INTPWD" becomes "High" and going to GA2. The GA2 outputs "Reset" signal and reset the all GAs.
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