[TechAssist] Re: Magnavox 25C5, sync
- From: "al m" <ampm@xxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Thu, 19 May 2005 12:07:06 -0400
Just wondering if I had one that I could send you to try.
Al Marquardt
ampm@xxxxxxx
Al Marquardt Electronic Repair
206 W Main
Girardville Pa. 17935
----- Original Message -----
From: "Hoyt's TV" <hoytstv@xxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Thursday, May 19, 2005 11:52 AM
Subject: [TechAssist] Re: Magnavox 25C5, sync
> Thanks Al, it's 612445-1 which is an ECG1632 and I don't have one of those
> either.
> I haven't checked suppliers yet, I was checking for any other
> possibilities
> before changing it.
>
>
> Russ Hoyt
> Hoyt's TV
> Exeter, NH
>
>
> ----- Original Message -----
> From: "al m" <ampm@xxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Thursday, May 19, 2005 11:42 AM
> Subject: [TechAssist] Re: Magnavox 25C5, sync
>
>
>> What's the #'s on the part?
>> Al Marquardt
>> ampm@xxxxxxx
>> Al Marquardt Electronic Repair
>> 206 W Main
>> Girardville Pa. 17935
>> ----- Original Message -----
>> From: "Hoyt's TV" <hoytstv@xxxxxxxxxxx>
>> To: <techassist@xxxxxxxxxxxxx>
>> Sent: Thursday, May 19, 2005 10:32 AM
>> Subject: [TechAssist] Magnavox 25C5, sync
>>
>>
>>> Loss of sync.
>>>
>>> Customer says she saw a bright light coming from the back of the set and
>>> shut it off.
>>> When I tried it, it came on ok but horizontal was off freq. I cannot
>>> find
>>> any burn marks or burned parts and yoke appeared to be working properly.
>>> I pulled the chassis and have it running on the bench. Looks the same as
>>> in
>>> the house, adjusted H so it floats but has no sync. The pulse from the
>>> HO
>>> transformer is ok from the coil but develops ringing after going through
>>> two
>>> resistors to pin 12 of the sync chip. Resistors measure ok and there is
>>> nothing on the line to filter the ringing. Of course I don't have a chip
>>> on
>>> the shelf.
>>>
>>> Anyone have any notes on this one? The only mention of this in the Tips
>>> section, mentions parts in the yoke return circuit. Everything there
>>> seems
>>> OK.
>>>
>>> Russ Hoyt
>>> Hoyt's TV
>>> Exeter, NH
>>>
>>>
>>>
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>>
>>
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