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Sanyo DS19230 Vertical Failure

C

crayzKirk

Jan 1, 1970
0
Hi,

Got an older Sanyo 19" TV set that has a single horizontal line instead of
the picture. I'm thinking vertical IC and/or caps in that area. No
photofact exists for this model. Can anyone help me out with a schematic?

Thanks!

Kirk
 
J

Jonesy

Jan 1, 1970
0
Kirt try soldering you vert IC which is La7837 and if that do'nt work check
c452 and c451 both of them should be 1uf/50volts if not you may have bad
yoke but try them first .
 
C

crayzKirk

Jan 1, 1970
0
Hi Jonesy!

Resoldered the vertical IC and now I get vertical foldover. Bottom part of
screen is dark, thick line in middle and partial screen on the upper. I
should have looked at it before I did that so I'm not sure if it was simply
vertical collapse before. Got it from a friend that said it only had a
vertical line. Looks a lot like a Toshiba with failed vertical IC. At
least this one is cheap. Got an ESR meter so I'll take a look at those two
caps. They don't appear to be the brown/red ones that are prone to failure
although after 12 years, who knows!

Thanks for the info!

Kirk
 
C

crayzKirk

Jan 1, 1970
0
oops, make that a horizontal line...

Kirk
 
C

crayzKirk

Jan 1, 1970
0
Hi,

Well, C452 measures open on my ESR meter so that will be the first one to
go. I'll let you know once I get it changed out.

Thanks again!

Kirk
 
C

crayzKirk

Jan 1, 1970
0
Replaced 1uf50v cap and the set works!

Thanks!

Kirk
 
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