[TechAssist] Re: [ Update] Zenith PVR4660VK Pix is bowed equally on top, bottom, and sides, and convergence is bad.

  • From: "Intrepid Video Support" <support@xxxxxxxxxxxxxxxxxx>
  • To: <techassist@xxxxxxxxxxxxx>
  • Date: Thu, 22 Apr 2004 08:42:37 -0400

LeRoy,
Is it still bowed?
Is it possible the ring magnets got bumped?
Also, be sure you have the connector plugged into the correct plug. It goes to 
the large signal board with
all the large cans on it. n some of these, there is another connector it will 
fit into and could be your
problem.
Did you check the 110k and 82k resistors...change no matter how they test.

Jeff
--
Intrepid Video TV/VCR Repair
263 S Front St, Steelton PA 17113
717-939-7708; (F) 717-564-4952
www.intrepid-video.com  www.tech-repair.net
----- Original Message ----- 
From: "LeRoy Westlund" <llw@xxxxxxxxxx>
To: "TechAssist" <techassist@xxxxxxxxxxxxx>
Sent: Thursday, April 22, 2004 1:18 AM
Subject: [TechAssist] [ Update] Zenith PVR4660VK Pix is bowed equally on top, 
bottom, and sides, and
convergence is bad.


Hi Avery, and All;
Mine is using 3 of the STK391-020 on the Convergence Amp module.
I replaced them, and NO help. All the 1 ohm resistors are OK.
All my + and - voltages (+26, -26, and + 16) to both the output board, and
the registration board are all present. The 110K and the 82K ohm resistors
(R3243, and R3244) on the SMPS board are also OK.

I been trying to do a complete convergence alignment, but it's starting to
drive me crazy. All the controls on the registration board seem to work
normal, but, I'll be damned if I can swing them all into place. I am usually
pretty good at performimg dynamic convergence, but,...not this time, so
there may still be a bad componant somewhere. I even tried centering all the
controls, and starting over again. I can get it fairly close, but not close
enough to be anywhere near acceptable.


One more clue: When I adjust any ( Red, Green, or Blue) of the G-2 screen
controls, the vertical retrace line near the bottom of the screen has a
nasty 1/2 inch glitch in it. Might have something to do with the problem,
but I'm not sure where to look. Maybe a bad e-cap somewhere.

Thanks, anyway,
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: Avery Boyd <adBoyd@xxxxxxxxxxxxx>
To: techassist@xxxxxxxxxxxxx <techassist@xxxxxxxxxxxxx>
Date: Wednesday, April 21, 2004 7:05 AM
Subject: [TechAssist] Re: Zenith PVR4660VK Pix is bowed equally on top,
bottom, and sides, and convergence is bad.


>If the convergence board is using stk392-110 replace them along with the
>1ohm resistors.
>Avery Boyd
>4666B S. Mingo
>Tulsa OK 74146
>Phone 918-665-2400
>----- Original Message -----
>From: "LeRoy Westlund" <llw@xxxxxxxxxx>
>To: "TechAssist" <techassist@xxxxxxxxxxxxx>
>Sent: Tuesday, April 20, 2004 10:46 PM
>Subject: [TechAssist] Zenith PVR4660VK Pix is bowed equally on top, bottom,
>and sides, and convergence is bad.
>
>
>Hi members,
>I repaired my focus problems by replacing the Focus block. I still have bad
>convergence, and the pix is bowed equally on top, bottom, and both sides.
>Does anybody have a fix listed for this problem ?
>I don't want to buy convergence amps, cause I'm pretty sure it won't fix
the
>problem.
>I'll buy some if you guys think I need them.
>Can't afford to waste money buying parts that won't help. So far,..so
>good,...but,..I need a quck fix,...bad !
>
>Any help is appreciated,
>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
>
>
>
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