[TechAssist] Re: '98 Toshiba PTV - Red Light Blinks - No Power

Transistor?? Those are ICs!; also on a projection TV the vertical sweep is 
monitored and the hi-voltage will not come up or the video will blank to 
protect the CRTs. DON'T disable the vertical circuit!
Country TV
Ron Miller
Inez, TX. 77968

----- Original Message ----- 
From: "Jeff Farnsworth" <jlfonz@xxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Thursday, December 30, 2004 10:32 PM
Subject: [TechAssist] Re: '98 Toshiba PTV - Red Light Blinks - No Power


> Vertical output transistor---usaully IC301 or IC401 or IC451.  Probably an
> LA7838 or LA7836.  Just unsolder it and see if it fires up.  If it
> does---the transistor is bad
>
> TV Doctor
> Avalon, Wi
>
> ----- Original Message -----
> From: "Bil Green" <tv.vcrrepair@xxxxxxxxxxx>
> To: "Jeff Farnsworth" <techassist@xxxxxxxxxxxxx>
> Sent: Thursday, December 30, 2004 10:26 PM
> Subject: [TechAssist] Re: '98 Toshiba PTV - Red Light Blinks - No Power
>
>
>> Hi Jeff,
>>
>> What's the vert "op" transistor (I don't have a print).
>>
>> Thanks
>>
>>
>> Bil Green
>> PC 1000
>> Mammoth Lakes, CA 93546
>> 760-924-1000
>>
>> Thursday, December 30, 2004, 7:31:58 PM, you wrote:
>>
>> JF> Unsolder the vertical op trans and see if it fires up.  Very likely
> your
>> JF> problem
>>
>> JF> TV Doctor
>> JF> Avalon, Wi
>>
>> JF> ----- Original Message -----
>> JF> From: "Bil Green" <tv.vcrrepair@xxxxxxxxxxx>
>> JF> To: ".TECHASSIST @ freelists . org" <techassist@xxxxxxxxxxxxx>
>> JF> Sent: Thursday, December 30, 2004 9:07 PM
>> JF> Subject: [TechAssist] '98 Toshiba PTV - Red Light Blinks - No Power
>>
>>
>> >> Toshiba TP43H95
>> >> Chassis TAC 9860
>> >>
>> >> The set powers up for a second (you can hear the HV build up - then
>> >> collapse)
>> >>
>> >> The relay does a double click and then the red LED starts blinking
>> >> continuously. HOT not shorted.
>> >>
>> >> REPLACED the STK392-110 chips and sill no help.
>> >>
>> >> The customer is only in town for a few days ("second home") and I
>> >> don't have the service manual. Any help would be much appreciated.
>> >>
>> >> Bil Green
>> >> PC 1000
>> >> Mammoth Lakes, CA 93546
>> >> 760-924-1000
>> >>
>> >>
>>
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