[TechAssist] Re: Sony 35" Venetian blind
- From: peggs <peggs@xxxxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx, <techassist@xxxxxxxxxxxxx>
- Date: Wed, 12 May 2004 12:55:40 -0700
I heated the CXA2025S and it appears the Venetian symptom
went away.
Then I chilled the chip and the Video still goes wild but the
Venetian didn't come back.I'm gonna leave it off for a while,then
fire it up to see.......
It SEEMS obvious that this chip is bad,cause this video will change color,go
bright Green,lose color,Jitter,drop down(vertical),stretch too
tall(vertical)....
all by chilling the chip..........and I mean Drops of Chill spray cause it.
All these symptoms straighten out as I heat it back up........
I get back at it later
Peggs
At 10:35 AM 5/12/04, LeRoy Westlund wrote:
>Peggs,
>Don't over look the E-caps in the vertical ckt.
>They can cause your symptom, also.
>I had a Sony 32XBR36, that had a bad cap in the vertical.
>I changed the Jungle IC first , but found out I just wasted my time & money.
>
>Good luck,
>LLW
>
>LeRoy Westlund
>Westlund TV & Electronics
>97 North Main "Where there's a will,...
>Centerfield, UT 84622-0087 There's always a way."
>Ph./Fax 435-528-3822
>mailto:LLW@xxxxxxxxxx
>
>-----Original Message-----
>From: peggs <peggs@xxxxxxxxxxxxx>
>To: techassist@xxxxxxxxxxxxx <techassist@xxxxxxxxxxxxx>;
>techassist@xxxxxxxxxxxxx <techassist@xxxxxxxxxxxxx>
>Date: Wednesday, May 12, 2004 10:19 AM
>Subject: [TechAssist] Re: Sony 35" Venetian blind
>
>
> >that tip was in WinStips,couldn't find the specific Location number,but all
>the
> >low ohms resistors by the fly are good.I couldn't find any bad caps,or any
> >voltages
> >that were off.Although the +15 is 12v and the -15v is -16v from the
> >fly.That's when
> >I looked for bad caps,but all were good.I don't think those voltages being
> >like that is
> >unusual for these Sony's.
> >
> >Peggs
> >
> >At 09:10 AM 5/12/04, Larry E. wrote:
> >>Peggs, heres another maybe, I had a KV32HRS10 with "venetian blind effect"
> >>and it
> >>was
> >>R527 a (point 47) .47 Ohm 1/4 watt located off pin 11 of the
> >>flyback, hope this
> >>helps
> >>Larry Eastman
> >>American TV & Electronics
> >>Crystal River, Fl. 34428
> >>
> >>peggs wrote:
> >>
> >> > I've seen this discussed here but WinStips,and may 'saved' Emails
>haven't
> >> > helped.
> >> > model KV35V35
> >> > The symptom is best seen on Video inputs with no signal.
> >> > The symtpom is very slight,but the customer notices it.
> >> > I've resoldered,checked caps.
> >> > I can chill IC351 CXA2025S and get all kinds of Video
> >> > reactions(screen changes to different colors,OSD goes dim) but the
>Venetian
> >> > Blind effect
> >> > seems to stay.
> >> >
> >> > Pix tube is a little weak also
> >> >
> >> > Peggs
> >> > Peggs' Electronics
> >> > 1519 West 2nd Street
> >> > Owensboro,KY 42301
> >> > 270-926-4968
> >> > fax 270-686-7399
> >> > peggs@xxxxxxxxxxxxx
> >> >
> >> >
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