What's the filament resistance reading (measured directly across the pins on
the kine)?
Is there continuity between the neck board and the kine pins?
Did you try to rejuvenate the tube?
-Mark
On Thu, Mar 24, 2011 at 11:08 AM, Malcolm Mackenzie
<maxstang@sbcglobal.net>wrote:
> Ok...I've looked into this further and I'm even more perplexed. It appears
> the heater circuit isn't working. R107 on the deflection board never gets
> warm. I've got AC coming in to D108 and DC (-10V) coming out of D108 and
> the same voltage measured at the neck board where it enters the socket for
> the tube heater. Keep in mind that this neck board and tube work fine with
> another deflection board. Anyone good enough with schematics to tell me
> what to look for on the down stream end of the heater circuit?
>
> --- On *Sat, 3/19/11, Malcolm Mackenzie <maxstang@sbcglobal.net>* wrote:
>
>
> From: Malcolm Mackenzie <maxstang@sbcglobal.net>
> Subject: Unusual WG6100 Deflection Board Problem
> To: "Vector List" <vectorlist@vectorlist.org>
> Date: Saturday, March 19, 2011, 7:53 AM
>
> Hey guys. I've rebuilt a few 6100 deflection boards, including the one I'm
> currently having a problem with. I rebuilt the low voltage section and it
> worked fine, so I put it in my spares pile. Just pulled it out and I'm
> getting no video. I hear deflection chatter, I have the correct voltages on
> pins 1/8 and 5 of P900, but no video. It's almost like I'm getting no Z
> output. Anyone with greater knowledge than I have an idea? The rest of the
> monitor tests good with another deflection board.
>
>
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Received on Thu Mar 24 12:19:42 2011
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