[TechAssist] Re: PTK195 - Black Bar in Picture??

  • From: "John Conti" <contitv@xxxxxxxxxxx>
  • To: techassist@xxxxxxxxxxxxx
  • Date: Fri, 01 Jul 2005 15:56:10 -0500

Danny I had the same problem and had to replace U16201 the t-chip p/n 241266 
also check the condition of r 14507

John
Conti, TV
>From: "Danny Garris" <dgarris@xxxxxxxxxxx>
>Reply-To: techassist@xxxxxxxxxxxxx
>To: techassist@xxxxxxxxxxxxx
>Subject: [TechAssist] PTK195 - Black Bar in Picture??
>Date: Fri, 01 Jul 2005 16:21:40 -0400
>
>What:   52" Big Screen TV
>Make:   RCA
>Model:   P52820BL
>Chassis:   PTK195DB
>
>Problem:  After 25 min warm-up the picture will have (1) "Black bar" appear
>in the screen and slowing moves from bottom to center of picture. This
>vertical (going from left to right) "black bar" is about 2-3" tall and 
>would
>appear at the bottom of screen and slowly move up to the center of the
>screen.
>
>Yesterday I looked up this type problem on my WINStips program and I found 
>a
>tip that suggested replacing R14705 (1.0 ohm) (1/4 W) I replaced this
>resistor and now after warm up I have (2) "black-bars" appear in the 
>picture
>after warm up.
>
>Anyone seen this problem?
>
>Danny Garris
>Garris Radio & TV
>New Bern, NC
>dgarris@xxxxxxxxxxx
>
>
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