[TechAssist] Re: Sony KP53V75 RA-2A - audio pops and convergence focus and color change for instant
- From: "tvservice" <tvservice@xxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Fri, 23 Sep 2005 10:52:21 -0500
replace the flyback
Robert
tvservice@xxxxxxxxxxxxx
H & H Electronics Inc
----- Original Message -----
From: "Tony S" <tcselectronics@xxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Friday, September 23, 2005 8:50 AM
Subject: [TechAssist] Sony KP53V75 RA-2A - audio pops and convergence focus
and color change for instant
> Hi guys ,
>
> I have this Sony that has a strange problem. every now and then the set
will
> make a loud pop noise and this pop effects the focus, convergence and
> basically wipes the video leaving just raster then pix goes back to normal
> and cycle repeats at next pop. I have disconnected the tubes one by one
but
> can still hear the pop (both hv lead and crt socket) I have removed the
200v
> source feed to the tubes and have removed the focus lead to the focus
block
> but pop noise still heard. Checking voltages with a peak meter I found the
> biggest voltage drop on the G2 line , drops to 51v when nothing connected.
> and the B+ line goes from .4a current draw to 1.2 - 1.4 amp draw for an
> instant. My guess is the flyback but wondering if anyone had this happen
to
> them.
>
> thanks for any input
>
> Tony Saracco
> TCS ELECTRONICS
> 406 Andra Ct.
> Gilberts, IL 60136
> tcselectronics@xxxxxxxxx
>
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