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Service manuals & datasheets => DVD/VIDEO/Home Cinemas/Hi-Fi/Camcorders => Topic started by: DAVIDTV on January 09, 2010,09:52:34

Title: Digihome PVR 80, Vestel T810
Post by: DAVIDTV on January 09, 2010,09:52:34

I have one of this which gives the impression of poor aerial/signal.  At switch on I receive a few stations for a short while and then it appears to be low signal.  I have tried the tuners in an idential receiver and they work well.  I've also tried the tuners from that set in the faulty one and the fault persists.  I've also tried chaning the power supplies over and again the fault persists.   It would appear to be on the main board.  Can any one help?  Does anyone have the circuit diagram or know where I can obtain it?
regards,
David.

Title: Re: Digihome PVR 80, Vestel T810
Post by: DAVIDTV on January 14, 2010,18:05:31

The fault turned out to be voltage regulator IC500 which was only giving an output of 1.2 volts instead of 1.8.  Part number CP1117 1.8-B.  The circuit diagram is almost identical to the Hitachi HDR081/HDR161.
David.

Title: Re: Digihome PVR 80, Vestel T810
Post by: Turnip on February 27, 2010,10:49:47

Hi,

Another one for the PVR80 - No go - R1 (2m2) P/S start up resistor O/C