Super Anleitung. Ordentliche Auflösung. Das ganze noch in Deutsch wäre zu schön. Alle Datenblätter sind sauber Kopiert und alle Leitungswege sind sauber ausgeführt
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.
This is a great and complete Service Manual for the Sharp GF8585HB. Giving full and detailed technical insight. Good to find these manuals online.
Text excerpt from page 35 (click to view)
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.