[TechAssist] Re: Fw: Panasonics Mod# CTP-2764S (Vertical foldover)
- From: armando guerra <birdie@xxxxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Wed, 09 Jun 2004 20:28:46 -0700
I don't have the sm for this set but I am going to assume that your set uses the
LA7836.
If so, check for high esr on the following caps.
C452
C453
C454. Look for a cap in that ckt that is eighter a 1mfd or a 2.2 mfd.That may
be
your problem. Hope this helps some.
Mando
Birdie's TV & Electronics
Casa Grande, AZ
javiles6 wrote:
> techs
>
> since i have not receive any reply to this message, what about a voltage pin
> out for this IC. If i could just get the right voltages i could take it from
> there. This it why is hard to work without an schematic, and you can not
> charge the customer for this because the labor will be too high. And if you
> buy the schematic with what you are going to charge for the labor then you
> will only get a profit of perhaps $20.00 to $30.00 dollars. So any help is
> appreciated.
>
> Thanks
>
> Jose
> ----- Original Message -----
> From: "javiles6" <javiles6@xxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Tuesday, June 08, 2004 10:01 PM
> Subject: [TechAssist] Panasonics Mod# CTP-2764S (Vertical foldover)
>
> > Hello techs
> > This set came in with a verical line across the middle of the set. I
> resolder the verical IC(IC451) but with no help, so i replace it with an NTE
> 7085. Now the set is about 4" open but with verical foldover. I have change
> C455(100uf/35v which was out of tolerance and C451(220uf/16V) but with no
> help. I have the 12V at pin one of IC and the 26v at pin 7, also at pin 12.
> All of the other pin run from 5v to 6v, except pin 10 which GND and pin 9
> OSC BLOCKING. I don`t have an schematic to be certain that this are the
> correct voltages. Does any one have the vertical section that could e-mail
> me or any help that could offer. Your help is always appreciated.
> >
> > Thanks
> >
> > Jose
> >
> > Aviles Computer & TV Repairs
> > 508 Bingaman st
> > Reading, PA 19602
> > Tel # 610-478-1342
> >
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