[TechAssist] Re: PTV340 Magnavox - has sound but no pic ???
- From: "al m" <ampm@xxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Tue, 22 Mar 2005 09:51:17 -0500
My records show I have a manual. I'll try and find it later and if it's on
paper I'll scan it.
Al Marquardt
ampm@xxxxxxx
Al Marquardt Electronic Repair
206 W Main
Girardville Pa. 17935
----- Original Message -----
From: "Jim Myers" <jr.myers@xxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Tuesday, March 22, 2005 9:43 AM
Subject: [TechAssist] Re: PTV340 Magnavox - has sound but no pic ???
> No, PTV410 is the earliest PTV chassis in Force.
>
>
> ********************************
> Since 1972 *
> Jim Myers *
> Telrad Electronics *
> Fort Wayne Indiana *
> ********************************
>
>
> al m wrote:
>> Isn't the PTV340 on the force program?
>> Al Marquardt
>> ampm@xxxxxxx
>> Al Marquardt Electronic Repair
>> 206 W Main
>> Girardville Pa. 17935
>> ----- Original Message -----
>> From: "Dan Garris" <dgarris@xxxxxxxxxxx>
>> To: <techassist@xxxxxxxxxxxxx>
>> Sent: Monday, March 21, 2005 10:34 PM
>> Subject: [TechAssist] Re: PTV340 Magnavox - has sound but no pic ???
>>
>>
>>
>>>Sorry Cliff, but I already saw this tip. Thanks for the reply however
>>>something is loading down R446 and causing the resistor to burn open. I
>>>don't have a schematic. Thanks anyhow.
>>>
>>>Garris TV
>>>New Bern, NC
>>>dgarris@xxxxxxxxxxx
>>>
>>>
>>>>From: Cliff Afflick <sgt.cliff@xxxxxxx>
>>>>Reply-To: techassist@xxxxxxxxxxxxx
>>>>To: techassist@xxxxxxxxxxxxx
>>>>Subject: [TechAssist] Re: PTV340 Magnavox - has sound but no pic ???
>>>>Date: Mon, 21 Mar 2005 19:58:10 -0700
>>>>
>>>>Open Connection On Deflection Board From Flyback To Collector Of Q505
>>>>----- Original Message -----
>>>>From: "Dan Garris" <dgarris@xxxxxxxxxxx>
>>>>To: <techassist@xxxxxxxxxxxxx>
>>>>Sent: Monday, March 21, 2005 4:08 PM
>>>>Subject: [TechAssist] PTV340 Magnavox - has sound but no pic ???
>>>>
>>>>
>>>>
>>>>>What: 46" Big Screen TV
>>>>>Make: Magnavox
>>>>>Model: RK8530 AK07
>>>>>Chassis: PTV340
>>>>>Made: June 1990
>>>>>
>>>>>Problem: Has sound but no Picture.
>>>>>
>>>>>
>>>>>I found R446 0.47 ohm 1w resistor was open on the large power supply
>>>>>panel.
>>>>>I replaced the resistor and brought voltage up slowly on my Sencore
>>>>
>>>>PR-57
>>>>
>>>>>Variac and the Set began drawing extremely high current and R446 was
>>>>>getting
>>>>>hot so I shut the power to the set off.
>>>>>
>>>>>I do not have a schematic on this set. Can someone upload a schematic
>>>>
>>>>for
>>>>
>>>>>this Chassis to our members area or to my e-mail address, or has anyone
>>>>>seen
>>>>>this R446 resistor open up before on this common PTV340 Chassis. I
>>>>>searched
>>>>>my many tips and Google and found nothing. Any help appreciated. This
>>>>
>>>>Big
>>>>
>>>>>Screen tv belongs to a Local Church youth group and they need it back
>>>>>by
>>>>>friday and I was trying to help the youth group out.
>>>>>
>>>>>Garris Radio & TV
>>>>>Dan Garris
>>>>>New Bern, NC
>>>>>dgarris@xxxxxxxxxxx
>>>>>Ph: (252) 638-4477
>>>>>
>>>>>
>>>>>
>>>>
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