Re: G08 - no X deflection

tried that... I think that is what got me into trouble in the first place.

I checked for continuity between pin1 and R700; found that the trace appears
to be broken at the pad of pin1.
I've repaired it; but am currently reattaching the various wiring necessary
to remove the board.

I'm hopeful; that will fix the issue.
John

-----Original Message-----
From: kstillinger@sc.rr.com
Sent: Wednesday, March 14, 2012 10:11 PM
To: vectorlist@vectorlist.org
Cc: Zitt Zitterkopf
Subject: Re: VECTOR: G08 - no X deflection

Just for kicks, try plugging the signal connector straight into the
deflection board.

That is, bypass the protection board and see if you still have no picture.
Be aware the picture will be MUCH bigger.

Kerry

---- Zitt Zitterkopf <zittware@hotmail.com> wrote:
> While converging my G08; I stupidly resocketted the video connector on the
> monitor with power applied and lost X deflection. :forehead to palm:
> After some debug; I think the X pin shorted to the chassis temporarily.
>
> Some quick debug seems to indicate the X signal is present if I disconnect
> the clamping board from the main board... IE X shows up at pin1 of the
> output of the clamping board.
> As soon as I connect the clamping board to the main board; the signal
> disappears indicating there is a shorting path to ground.
>
> I’m looking at the crappy schematics (hard to read due to small nature);
> and it appears that the X deflection enters IC600 13,14,15 and there are
> no diodes / transistors in the X path prior to IC600.
>
> I woulda thunk that the 2k2 resistors (R700) would have protected IC600...
>
> Any thoughts?
>
> Am I screwed and IC600 is fried? I assume no replacements for IC600 are
> available?
> John

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Received on Thu Mar 15 01:58:33 2012