[TechAssist] Re: Zenith PVR4660VK (1995 model) Focus drifts.

OK, Phillip. That sounds like a great idea.
I'll post the results tomorrow.

Later,
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: Phillip R. Hull <phil245@xxxxxxxxxxxxx>
To: techassist@xxxxxxxxxxxxx <techassist@xxxxxxxxxxxxx>
Date: Monday, April 12, 2004 2:55 PM
Subject: [TechAssist] Re: Zenith PVR4660VK (1995 model) Focus drifts.


>Why not adjust focus when cold and after it warms up and is out of focus,
>spray the block with circuit cooler and see if it go back into focus.
>Phillip R Hull     STET
>phil245@xxxxxxxxxxxxx
>FAX 517--569-3075
>Professional Technicians only
>----- Original Message -----
>From: "LeRoy Westlund" <llw@xxxxxxxxxx>
>To: <techassist@xxxxxxxxxxxxx>
>Sent: Monday, April 12, 2004 3:20 PM
>Subject: [TechAssist] Re: Zenith PVR4660VK (1995 model) Focus drifts.
>
>
>> Ed, and All;
>> I havn't ordered the Focus block yet,...I'm having a hard time deciding
if
>> it will fix my problem, and IF I should order the cheaper generic just in
>> case.
>> I'm getting conflicting suggestions from the list. Some say to spend more
>> $$$ and replace with an OEM part. Some say the Generic will work just
>fine.
>> Some say it may not even fix my problem. Maybe I will check the drive
>module
>> for bad connections, and a few bad e-caps. If it looks clean, then I will
>> order the Focus block. I will post the fix, in a few days. Where do I get
>> the idea that there is a small amount of gambling going on in this
>bussines
>> ? Go with the odds,...right ?
>>
>> Thanks,
>> 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: Edward Gaidies <teltek3@xxxxxxxxxxxx>
>> To: techassist@xxxxxxxxxxxxx <techassist@xxxxxxxxxxxxx>
>> Date: Friday, April 09, 2004 10:27 PM
>> Subject: [TechAssist] Re: Zenith PVR4660VK (1995 model) Focus drifts.
>>
>>
>> >LeRoy;
>> >Using OEM may not always be the answer. Certain Transistors require OEM
>> >for some reason, but in your case look for other problems.
>> >
>> >-Ed-
>> >On Saturday, April 10, 2004, at 12:18 AM, LeRoy Westlund wrote:
>> >
>> >> OK,...come Monday, I'll shell out $58 "MORE", for the OEM part.
>> >> Zenith wants $133 for one. Too bad we can't use them cheaper generics,
>> >> cause
>> >> that keeps us from making a decent profit on these kind of jobs.
Always
>> >> SOMETHING to stop us from making a living in this business.
>> >>
>> >> 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: Shoreline Electronics <jstielau@xxxxxxxx>
>> >> To: techassist@xxxxxxxxxxxxx <techassist@xxxxxxxxxxxxx>
>> >> Date: Friday, April 09, 2004 10:38 AM
>> >> Subject: [TechAssist] Re: Zenith PVR4660VK (1995 model) Focus drifts.
>> >>
>> >>
>> >>> Most definitely the spiller/focus block.
>> >>>
>> >>> Do NOT use the cheap generic......you have been warned!
>> >>>
>> >>> ==========================
>> >>> Jeff Stielau
>> >>> Shoreline Electronics Repair
>> >>> 344 East Main Street
>> >>> Clinton,CT 06413
>> >>> 860-399-1861
>> >>> 860-664-3535 (fax)
>> >>> jstielau@xxxxxxxx
>> >>> ========================
>> >>> "If you push something hard enough it will fall over."
>> >>> Fudd's First Law of Opposition - Sir Sidney Fudd
>> >>>
>> >>>
>> >>> ----- Original Message -----
>> >>> From: "LeRoy Westlund" <llw@xxxxxxxxxx>
>> >>> To: "TechAssist" <techassist@xxxxxxxxxxxxx>
>> >>> Sent: Friday, April 09, 2004 11:23 AM
>> >>> Subject: [TechAssist] Zenith PVR4660VK (1995 model) Focus drifts.
>> >>>
>> >>>
>> >>>> Hi members,
>> >>>> This Zenith PTV has a fairly good picture after I adjust the focus
>> >>>> on all
>> >>> 3
>> >>>> tubes, but after about 20 minutes the focus adjustments drifts, and
I
>> >> have
>> >>>> to readjust the focus.
>> >>>> When it's cold, the adjustment range on the pots, are about in the
>> >> middle.
>> >>>> After warm-up I have to turn it almost to the full range in the CW
>> >>>> direction.
>> >>>>
>> >>>> The gray wire from the High voltage bleeder assy., measures 44.2K to
>> >>> ground.
>> >>>> I understand that it should OHM out between 48-51K. I am thinking
>> >>>> about
>> >>>> ordering a new Focus block assy., from H.B. electronics in
>> >>>> California.
>> >>> They
>> >>>> have them for about $75. I checked all 3 of the 120K ohm resisters
>> >>>> on the
>> >>>> CRT modules, and they check OK. Do I need to replace them anyway,
>> >>>> and do
>> >>> you
>> >>>> think a new focus block will correct my problem, or am I over
looking
>> >>>> something ? I guess what I need, is a little insurance from the
list,
>> >>> before
>> >>>> shoveling out that much $$$ for a part I might not need.
>> >>>>
>> >>>> Please advise,
>> >>>> TIA,
>> >>>> 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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