[TechAssist] Re: Philips TS2546 C221 Chassis 25F800 7583


Dear Paul,

If it's not too much trouble could you do the same for us up here. I have
the same trouble only with  a slightly different model philips. Originally,
when I got it in, I replaced the resistor with a 1.8 Ohm resistor and the
set came on but the vertical IC seemed to be too hot. I then tried some
generic substitutes and even a generic original with the shutdowns happening
even faster. I wonder if we all get the same trouble at the same time.

I'm new at this so I hope I'm doing this right. (I mean the EMAIL).

Regards,
Gordon Filion

MG Electronics
#105-1960 Barnes St.
Penticton, BC, V2A 4C3
Phone (250) 487-1511
Fax     (250) 487-1512
http://www.mgelectronics.ca

----- Original Message -----
From: "C&W Electronics" <c_w_electronics@xxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Friday, April 05, 2002 6:47 PM
Subject: [TechAssist] Re: Philips TS2546 C221 Chassis 25F800 7583


>
> I just sent you a scan of the F800 chassis. I suspect that you have used
the
> wrong vertical IC. I have been there and done that. The Sony STV9379, will
> NOT work. It will burn R3488.
> Paul W
> C&W Electronics
> Azle Texas
>
>
> From: tvdoctors@xxxxxxxxxxxxx
> Reply-To: techassist@xxxxxxxxxxxxx
> To: techassist@xxxxxxxxxxxxx
> Subject: [TechAssist] Philips  TS2546 C221     Chassis  25F800 7583
> Date: 05 Apr 2002 11:57:06 -0800
>
> Unit came in with R3488 open (burnt load resistor for vertical output IC)
> Ordered and put in new vertical output IC7401 (STV9379Fa) and replaced
R3488
> with a 2.2 ohm resistor, turned on set, R3488 smoked again. Replaced R3488
> again and fired up and I get around 55 volts on the resistor with the
> vertical output IC out of circuit. Set only stays on for a couple of
seconds
> before going into shut down. Any suggestions on this one. It's last years
> model. I checked resistance from the resistor to ground and it measures
high
> so there is no dead short. Is the value of this resistor around 2.2 ohm or
a
> lot higher?
> Sure would be a great help if someone could make a scan of this circuit
for
> me.  Thanks,  Neil
>
> TV Doctors    108 W. Main St. Monroe,Wa. 98272    360-794-6469
>
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