[TechAssist] Re: Sony 35"tv Model KV-35S45\repeat failure of reg & hot.
- From: "Glenn Larkman" <mail@xxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Mon, 29 Sep 2003 16:33:38 -0700
Armando,
Did you check for an intermittent connection on the Horz. drive transformer
and associated drive circuit path back to the IC? Also check the 1uf cap off
the drive transistor.
Glenn Larkman
Audiotech
256 Nth Hwy 101
ENCINITAS CA 92024
760 944 9048
FAX 944 0345
mail to"mail@xxxxxxxxxxxxx"
"www.audiotech.net"
----- Original Message -----
From: "armando guerra" <birdie@xxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Monday, September 29, 2003 12:33 PM
Subject: [TechAssist] Sony 35"tv Model KV-35S45\repeat failure of reg & hot.
This set came in dead.I found shorted or open the following parts.
Hot=2SC5148
Reg=MX0841
R607
VDR 601
VDR602.
After replacing all.I ran the set for about 10min,turned off the set and
touched the hot to see how hot it getting.It was warm but not hot.I then
ran it again and after 45 min,set turned off.Checked and found the
reg,hot,shorted again and the R607 wasopen.
The flyback rings ok . Any idea's or tips on this problem?I checked just
about everything in the ps bd and did not find any more parts open or
shorted.This tv has the PS bd seperate from the main ckt bd.It does not
use the switching transistors Q601\602.
Thanks for any and all the help.
Mando
Birdie's TV & Electronics
Casa Grande, AZ
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