[TechAssist] Re: Toshiba TP50F90 color intermittent
- From: becyn <becyn@xxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Fri, 25 Nov 2005 17:16:20 -0500
You know, 'through holes" to make connections on multi-layered and
double sided boards?
"Via" is the pcb industry "politically correct" term for the things.
Jim McVey
McVey Alltronix
327 Broadway
Newburgh N.Y. 12550
"If it doesn't play...
CALL MCVEY !!!!!!"
Factory authorized
service for over 20
major brands.
845 561 8383
(Last of the Mohegans)
tjanphyl@xxxxxxxxxxxxxxx wrote:
>have bad via's ????
>Phil
>
>Phil Bader, Pres.
>Jan Phyl TV Inc
>Winter Haven, Fl
>(863) 299-8821
>Confounding the wise since 1976
>personal email: pbader@xxxxxxxxxxxxxxx
>
>----- Original Message -----
>From: becyn <becyn@xxxxxxxxxx>
>Date: Friday, November 25, 2005 1:46 pm
>Subject: [TechAssist] Re: Toshiba TP50F90 color intermittent
>
>
>
>>Yes, Toshiba's "hyper or scan converter pcb's have been dropping
>>like
>>flies lately around here.
>>Some of them seem to have bad via's which are sensitive to
>>tapping, or
>>twisting the can slightly.
>>
>>Jim McVey
>>McVey Alltronix
>>327 Broadway
>>Newburgh N.Y. 12550
>>
>>"If it doesn't play...
>>CALL MCVEY !!!!!!"
>>Factory authorized
>>service for over 20
>>major brands.
>>845 561 8383
>>(Last of the Mohegans)
>>
>>Carol Rundle wrote:
>>
>>
>>
>>>If your model has standup shielded module( hyper brd.) just
>>>
>>>
>>behind A/V jack panel, try a little freeze, and heat, inside
>>module. if it simulates your symtoms, remove brd., ESR lytics ,
>> I've repaired several Toshiba hyper brd's, found
>>weak,leaky smd lytics, usually find several (8-10)weak,leaky !
>>Causing symtom's similar to your 's.. hth
>>
>>
>>>Bill
>>> Bill'sTV
>>> Sonora,Calif.
>>>
>>>
>>>Ian Scott <service.depot@xxxxxxxxxxx> wrote:Hello, This set is in
>>>
>>>
>>the customer's home and intermittently loses
>>
>>
>>>color. When there is no color, the black and white picture has a
>>>
>>>
>>noise>in it that appears like you're looking through a screen
>>door. Both the
>>
>>
>>>main picture and PIP will lose color. When I remove the rear
>>>
>>>
>>cover to
>>
>>
>>>work on it, after 10 minutes or so the problem won't occur
>>>
>>>
>>anymore. I
>>
>>
>>>have tried to heat up the pc boards with a hair dryer, but the
>>>
>>>
>>symptom>won't return (until I leave). I suspect the comb filter.
>>
>>
>>>The customer normally watches digital cable and he has had the
>>>
>>>
>>cable box
>>
>>
>>>replaced. I have asked the customer to try using his DVD to see
>>>
>>>
>>if it
>>
>>
>>>loses color as well, but so far the results are inconclusive.
>>>Thanks in advance for any help.
>>>Ian Scott
>>>Service Depot
>>>252 Lasalle Blvd.
>>>Sudbury, ON
>>>P3A 1W6
>>>705-566-3557
>>>Fax 705-566-3455
>>>
>>>
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>>>
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>>>brundle@xxxxxxxxxxxxx
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