[TechAssist] Re: Magnavox Mod# PR3446-A106 (PTV515-AHO1) need help
- From: armando guerra <birdie@xxxxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Thu, 20 May 2004 08:25:50 -0700
I Can't find the sm on this set but if I am mistaken,its a 10 ohm resistor at
1/2w but you better wait till someone here confirms it.However,most of the time
the reason this res.burns is due to one of two possibilities.Eighter a shorted
flyback or a cracked blue crt.
Look inside the blue tube with a flaslight and you should be able to see if its
cracked.I have seen quite a few of them in this nap tv's.HTH.
Mando
Birdie's TV & Electronics
Casa Grande, AZ
javiles6 wrote:
> Peggs
>
> Yes there is a R934 connected to the emmiter of the HVOT and just a few
> minutes ago while searching for more faulty part, found R934 open. But the
> color are so fade that i can`t tell the value. Do you or someone knows the
> value of this resitor. Any help is always appreciated.
>
> Thanks
>
> Jose
> ----- Original Message -----
> From: "peggs" <peggs@xxxxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>; <techassist@xxxxxxxxxxxxx>
> Sent: Thursday, May 20, 2004 9:31 AM
> Subject: [TechAssist] Re: Magnavox Mod# PR3446-A106 (PTV515-AHO1) need help
>
> > is there an Emitter resistor in the circuit of the HOT(2SD1556)
> > R934.....I'm thinking
> >
> > Peggs
> >
> > At 12:40 AM 5/20/04, javiles6 wrote:
> > >Hello Techs
> > >This set came in yesterday with sound but no picture. Found HVOT
> > >shorted(D1556)(Q901) but before i install the new one (2SD1556) i check
> > >the surrounding parts that connect to the transistor, D910, R961 and L903
> > >and they check good. I also resolder the T901 just to make sure i have no
> > >problem. Now the set have High Voltage and the picture tubes filament are
> > >lighted but still have no picture. I also check the voltage on the CRT
> ckt
> > >and is 225V on all three CRT resistors. Now i don`t have an high voltage
> > >probe so i don`t know if the high voltage is reaching the picture tube
> > >anode. Does someone have any idea or tips that can help me with. I`m free
> > >to any suggestion.
> > >
> > >Thanks
> > >
> > >Jose
> > >
> > >Aviles Computer & TV Repairs
> > >508 Bingaman st
> > >Reading, PA 19602
> > >Tel # 610-478-1342
> > >
> >
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