[TechAssist] Re: Zenith 27" TV SF5729HF - Problems Turning On
- From: "David Lessard" <mr_fixit@xxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Tue, 24 Aug 2004 17:07:16 +0100
+B is stable. I didn't ring the flyback. Problem is odd because
sometimes the HV will fire-up and the TV runs fine, except that the HOT
is getting hot, but that would be expected with the distorted drive
signal. I will ring the flyback Al and let you know what I find. I
appreciate the help. So, where can I find original Zenith parts in
Canada eh!
Thanks,
David Lessard
Alexandria, Ontario. Canada
mr_fixit@xxxxxxxxxxxx
-----Original Message-----
From: techassist-bounce@xxxxxxxxxxxxx
[mailto:techassist-bounce@xxxxxxxxxxxxx] On Behalf Of al m
Sent: Tuesday, August 24, 2004 9:46 PM
To: techassist@xxxxxxxxxxxxx
Subject: [TechAssist] Re: Zenith 27" TV SF5729HF - Problems Turning On
How's the B+? Did you ring the flyback?
Al Marquardt
ampm@xxxxxxx
Al Marquardt Electronic Repair
206 W Main
Girardville Pa. 17935
----- Original Message -----
From: "David Lessard" <mr_fixit@xxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Tuesday, August 24, 2004 11:43 AM
Subject: [TechAssist] Zenith 27" TV SF5729HF - Problems Turning On
> TV came in dead, HOT (Q3208) tests OK, main fuse OK, no horizontal
> drive. Found open horizontal drive transformer (TX3285) and leaky
drive
> transistor (Q3206), replace with something similar off a junk board,
now
> when ON button is pushed TV doesn't fire immediately and sometimes not
> at all. Monitoring the horizontal signal I can see a very distorted
> horizontal drive signal, I'm thinking the transformer and/or the drive
> transistor parameters are off. Could it be something else? What is the
> chassis number for this model and where can I find original
replacement
> parts for this TV?
>
>
> Thanks again gentlemen,
>
>
>
> David Lessard
>
> Alexandria, Ontario. Canada
>
> mr_fixit@xxxxxxxxxxxx
>
>
>
>
>
>
>
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