[TechAssist] Re: Sony KV-32S12 died after 104 days
- From: "Daryl Thunhurst" <dthunhurst@xxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Thu, 22 Aug 2002 21:42:33 -0500
Larry,
Take a look at the standby transfomer. I think it is T601. If the primary has
bubbles in the coating of the windings, change it. Had one with the same
problem a couple years ago and that was the culprit. The Sony original is very
cheap. Under $3.
Also be sure to check the small .22uf caps in the power supply. I'm not
looking at a print as I am at home but I think they are C9 thru C14. I'm sure
you looked at all of the solder joints, especially around the regulator IC's.
This didn't cause this particular failure but be sure to resolder the horiz.
driver transformer as well.
Hope this helps and good luck,
Daryl
Daryl's TV
3310 Dyer St.
El Paso, TX 79930
915-565-9184
915-564-1024 Fax
http://dynacomp.freeyellow.com
---------- Original Message ----------------------------------
From: "Larry E." <videotech@xxxxxxxxxxxx>
Reply-To: techassist@xxxxxxxxxxxxx
Date: Thu, 22 Aug 2002 18:29:54 -0400
>
>Hi guys, this KV32S12 was fixed 104 days ago, We replaced (with oem
>parts) Q601, 602, R607, All the vdr`s and several of the small blue caps
>in this power supply. Went out today and R607 is fried, Q601`s face is
>blown off and Q602 reads dead short C-B. I used a KV32S15 manual and a
>lot of help from this site last time to get it fixed, what could we have
>missed? Customer claims set was off and he heard a loud pop sound from
>the tv, tried to turn it on and of course it was dead. Your ideas will
>be greatly appreciated !
>--
>Larry Eastman
>American TV & Electronics
>Crystal River, Fl.
>http://www.tvjunkyard.com
>
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