[TechAssist] Re: Sony KV20VM30 FBT bad or OK ?
- From: "Ron Miller d.b.a. Country TV" <rlmbkm@xxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Mon, 24 Oct 2005 22:18:15 -0500
Sounds like a problem in the diode stack: BAD FLY.hth
Country TV
Ron Miller
Inez, TX. 77968
----- Original Message -----
From: <HSWAD@xxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Monday, October 24, 2005 4:51 PM
Subject: [TechAssist] Sony KV20VM30 FBT bad or OK ?
> This TVCR shuts down instantly when powered up. regulated B+ is 121
volts,
> which is the normal value. Collector waveform shows overload of flyback.
> Ringing test of the FBT with no power applied is normal. Disconnecting
secondary
> windings and then powering up still indicates a bad flyback. At a net of
> approx $75 I hate to purchase one just to try it. Anyone cured this
problem? TIA
> Hollis Bates , EE-retired, Lewiston, Maine, _HSWAD@xxxxxxxx
> (mailto:HSWAD@xxxxxxx) , 207 784 8689
>
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