[TechAssist] Re: RCA PTV P46151WK, Odd Problem, FIXED

  • From: Edward Gaidies <teltek@xxxxxxxxxxx>
  • To: <techassist@xxxxxxxxxxxxx>
  • Date: Mon, 31 Dec 2001 13:44:26 -0500

Yup....works for me.

-Ed-

> 
> I use WD-40 to clean up all kinds of sticky glue left behind from
> stickers, etc. Maybe it would work for these rubber pads too.
> 
> 
> 
> Gary McCartney
> 
> McCartney Electronics
> 7134 Fife Rd, RR 7
> Guelph Ontario Canada N1H 6J4
> Fax: (519)821-1530
> email: number63@xxxxxxxxxxxxx
> 
> 
> 
> 
> 
> 
> gulftech@xxxxxxxx wrote:
>> 
>> Dennis,
>> 
>> MEK.  The I tried soap and water--no good.  Ditto for alcohol.  Oh, yes,
>> I used the MEK in a well-ventilated environment!
>> 
>> I should have stated that this is a PTK169.
>> 
>> Ken Smith
>> Gulf Technical Services
>> 3034 Gulf Breeze Parkway
>> Gulf Breeze, FL  32561
>> 850-934-8324 (Voice) 850-932-0819 (Fax)
>> 
>> -----------------
>> 
>> On Sun, 30 Dec 2001 17:35:28 -0800 Dennis Viereck <wa6ati@xxxxxxxxxxxxxx>
>> writes:
>>> 
>>> What did you use to clean the messy compound from the bumpers?
>>> Dennis
>>> 
>>> gulftech@xxxxxxxx wrote:
>>> 
>>>> Friends,
>>>> 
>>>> I haven't posted this as a problem before, because I couldn't
>>> identify
>>>> the problem well enough to ask for help.  After many, many hours
>>> of work
>>>> and two failed attempts to return the light box to the customer,
>>> the set
>>>> is finally fixed and I hope this will help others in the future.
>>>> 
>>>> The set came in with the complaint of instant shutdown.  The green
>>> CRT
>>>> was arcing at the second anode.  There appeared to be a contaminant
>>>> spilled in the area.  Cleaning and RTV appeared to repair the set.
>>>> 
>>>> Took lightbox back to customer.  Found light horizontal lines,
>>> almost
>>>> like retrace on all three CRT's.  Had not seen in shop.  Also,
>>> appeared
>>>> to have a slight sync problem.  For example, bring up convergence
>>>> crosshatch, vertical lines had slight "s" shape in middle.
>>>> 
>>>> After many hours of troubleshooting and failed attempts, tried PIP
>>> pix.
>>>> PIP image was totally out of sync, like is typical of Mitsubishi.
>>> Pulled
>>>> the PIP module.  It had three rubber bumpers to isolate the pcb
>>> from the
>>>> shield.  These bumpers had melted like Hershey's Kisses.  What a
>>> mess!
>>>> Also found seven bad caps.  For the record:  C424, C425, C426,
>>> C501 (all
>>>> 15ufd, 50V), C318/.47@50, C518/10@50, and C121/25@100.  Most of
>>> these
>>>> caps check good with a normal cap meter, but high ESR.
>>>> 
>>>> Set works fine now.
>>>> 
>>>> Ken Smith
>>>> Gulf Technical Services
>>>> 3034 Gulf Breeze Parkway
>>>> Gulf Breeze, FL  32561
>>>> 850-934-8324 (Voice) 850-932-0819 (Fax)
>>>> 
>>>> ________________________________________________________________
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>>> 
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>> 
>> ________________________________________________________________
>> GET INTERNET ACCESS FROM JUNO!
>> Juno offers FREE or PREMIUM Internet access for less!
>> Join Juno today!  For your FREE software, visit:
>> http://dl.www.juno.com/get/web/.
>> ------------------------------------------
>> Help make your TechAssist database better!
>> Submit your fixes here: http://circuitwork.com/techassist/tip/#tips
>> ------------------------------------------
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> 
> --
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-- 
From: Ed Gaidies   
teltek@xxxxxxxxxxx
Tel-Tek Electronics

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