[TechAssist] Re: RCA P52151 ptk169hm
- From: <tvservice@xxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Mon, 20 Oct 2003 18:20:34 -0500
Try unplugging the small board on the HV Splitter TEMPORARILY for test
I had a small disc cap @ 820pf across the red and black wires from the
splitter leaky causing similar problem
This may be your problem
Robert
tvservice@xxxxxxxxxxxxx
H & H Electronics Inc
Dallas, TX
----- Original Message -----
From: "Mouton's Electronics" <moutons@xxxxxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Monday, October 20, 2003 5:50 PM
Subject: [TechAssist] RCA P52151 ptk169hm
> I am going to try and discribe this problem, never saw it before. From a
cold start the set plays fine, after warmup some areas of the picture,
particularly the faces when in a close-up scene, will get so bright you can
really see all of there face. The eyes get something like a shadow and will
get dark. The rest of the face gets so bright you can see any detail,
however the rest of the picture is at normal brightness and looks fine. The
condition comes and goes as if you need to have just the right conditions
for it to happen. In checking, I found that the 12VH line drops 1.5v's
across R2947 in the Luminance buffer circuit. Compared to another set which
had no loss and I haven't found out why as of yet. Changed the luma buffer
and 200v cap. also subbed the PIP module. Anyone have any idea?
> TIA
>
> Jason
> Mouton's Electronics
>
>
>
****************************************************************************
*
> Classifieds! Buy or Sell!
> http://sell.tech-assist.org
> The Tech Address Book:
> http://www.tech-assist.org/secure/tip/contact.htm
> Add a Repair Tip Here, or Change/Remove your Email Address:
> http://www.tech-assist.org/secure/tip/main.htm
> Lost Password:
> http://www.tech-assist.org and select "Lost your Login Info?".
> Email Archives:
> //www.freelists.org/archives/techassist/
*****************************************************************************
Classifieds! Buy or Sell!
http://sell.tech-assist.org
The Tech Address Book:
http://www.tech-assist.org/secure/tip/contact.htm
Add a Repair Tip Here, or Change/Remove your Email Address:
http://www.tech-assist.org/secure/tip/main.htm
Lost Password:
http://www.tech-assist.org and select "Lost your Login Info?".
Email Archives:
//www.freelists.org/archives/techassist/
Other related posts:
