[TechAssist] Re: Sony KP-46S25 Bunch of crazy colored lines
- From: "D Panday" <dpanday@xxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Sun, 22 Dec 2002 21:56:55 -0500
Adding to the below tip ..
Check and Replace:
1. CR Board C706 From 39pf change to 12pf 1-163-229-11.
CG Board C739 From 68pf change to
18pf 1-102-953-00. CB Board C769 From 68pf
change to 18pf 1-102-953-00.
2. IC301/pin 31 (Vertical Parabola Drive)
waveshape looked OK but dc voltage was reading
5.5 volts should be 3.5 volts. Replaced IC301 and
problem corrected.
Good Luck.
Panday
>From: "LeRoy Westlund" <llw@xxxxxxxxxx>
>Reply-To: techassist@xxxxxxxxxxxxx
>To: <techassist@xxxxxxxxxxxxx>
>Subject: [TechAssist] Re: Sony KP-46S25 Bunch of crazy colored lines
>Date: Sun, 22 Dec 2002 18:43:34 -0700
>
>
>Neil,
>These sets are famous for strange problems with the Jungle IC 301.
>Monitor the PIN drive signal on pin 5 of connector CN221 on A board or
>CN321 on M board. You should see a perfect Parabolic wave form. If
>not,....replace IC 301 (CXA1477), with an OEM part number 8-752-063-50.
>It's
>about a $65 chip,....but,...don't waste your time, and $$$ on the cheap
>bargains you might find.
>Use OEM part ONLY.
>
>HTH,
>LLW
>
>LeRoy Westlund
>Westlund TV & Electronics " It's such a pretty world
>93 North Main today !....
>Centerfield, UT 84622-0087 Look at the Sunshine. "
>Ph./Fax 435-528-3822 :-)
>mailto:LLW@xxxxxxxxxx
>
>-----Original Message-----
>From: TV Doctors <tvdoctors@xxxxxxxxxxxxx>
>To: techassist <techassist@xxxxxxxxxxxxx>
>Date: Sunday, December 22, 2002 5:56 PM
>Subject: [TechAssist] Sony KP-46S25 Bunch of crazy colored lines
>
>
> >
> >This is a condition that I have not run acroos before and hope someone
>out
>there has as to save me some time on this unit. Sound is Ok but you cannot
>see any type of picture because of multiple colored lines in the video.
>Cannot read OSD but you can tell it's there. It seems like it could be a
>very bad convergence problem like the Zenith's notorious R3243 but a lot
>worst. Any help would be appreciated, Neil Tv Doctors Monroe,Wa.
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