[TechAssist] Re: Toshiba Model:UPDATE TP55G60, Chassis TAC9753, Looks like horizontal sync problem.
- From: "al m" <ampm@xxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Fri, 24 Jun 2005 17:22:51 -0400
Go into the IF module (if there is one) and check the caps. had a 61F90 that
had horizontal tearing and it turned out to be the IF module had lots of bad
caps.
Al Marquardt
ampm@xxxxxxx
Al Marquardt Electronic Repair
206 W Main
Girardville Pa. 17935
----- Original Message -----
From: "Phil Bader" <tjanphyl@xxxxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Friday, June 24, 2005 4:02 PM
Subject: [TechAssist] Re: Toshiba Model:UPDATE TP55G60, Chassis TAC9753,
Looks like horizontal sync problem.
> Only entries from the techrepairCD:
> Toshiba~TP55G60~Unstable picture*bending*weaving and pincushion
> distortion~~~~Initialize memory data~With set on press MUTE once (on
> remote)*Press and hold MUTE again then press MENU on TV~An *S* will
> appear on screen. Press MENU on TV to enter adjustment menu.~To
> initialize*While in adjustment menu press and hold RECALL button(on
> remote) then press CHANNEL button on TV.~Press POWER button to exit~~
>
> Toshiba~TP55G60~The picture would roll vertically~~~~Q501~Replace
> Q501~~~~~
>
> HTH
> Phil
>
> Philip Bader
> Jan Phyl TV Inc. (estab. 1976)
> 3420 Recker Hwy. Winter Haven, Fl. 33880
> Fax (863) 299-8821
> email: tjanphyl@xxxxxxxxxxxxxxx
>
>
>
> GERALD GANN wrote:
>
>> He doesn’t have the right schematic just one close. He said the
>> signal goes through IC Q764 (TC74HC4050AP) so he changed it still the
>> same. Any one have the schematic they could upload to members site or
>> tech tips? Thanks
>>
>>Jerry
>>
>>
>>GERALD GANN <alpha21century1234@xxxxxxxxxxxxx> wrote:
>> Toshiba Model: TP55G60, Chassis TAC9753, Looks like horizontal sync
>> problem.
>>
>>Doing this for another shop and a friend of mine. He has helped me in the
>>past.
>>
>>Found one tip in T/A
>>Problem: Fish-Eye Picture,
>>Cure: Vertical IC 301, LA7833S
>>
>>I have never looked though a fishs eye so not sure what that means.
>>Changed LA7833S No help. I have seen the picture. It dose also look like a
>>convergence problem to me but.
>>
>> He has changed convergence IC they have + & - 18v but looks like the
>> convergence circuit is not working. Convergence IC’s is not warm at all
>> to the touch.
>>
>> He changed Switching IC. Also change the DCU module no help. You can
>>
>> remove the DCU and picture still looks the same. This is the info he gave
>> me. Can
>>
>>some one help on this one. Thanks
>>
>>Jerry
>>
>>Alpha 21 Electronics
>>
>>Granite City, IL 62040
>>
>>618-452-8620
>>
>>alpha21century1234@xxxxxxxxxxxxx
>>
>>
>>
>>
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