Re: Asteroids Deluxe G05-805 15" CRT Heater / neck glow issue

I finally found the pinout for the neck and everything tested good on the
tube. ;-) I found a faulty contact on the P500 connector for the heater!
Thanks!
Ed

On Mon, Jan 2, 2012 at 3:32 AM, David Shoemaker <davids@oz.net> wrote:

> Look at the manual it should show the pins at the tube / neck board.
> Remove the neckboark and ohm the tube directly.****
>
> ** **
>
> *From:* owner-vectorlist@vectorlist.org [mailto:
> owner-vectorlist@vectorlist.org] *On Behalf Of *Ed Lawless
> *Sent:* Sunday, January 01, 2012 9:10 PM
> *To:* vectorlist@vectorlist.org
> *Subject:* VECTOR: Asteroids Deluxe G05-805 15" CRT Heater / neck glow
> issue****
>
> ** **
>
> Hi guys,
> I have a G05-805 that everything is currently working on it
> except; I now have no neck glow. ;-( I have checked to make sure I have
> 6.3 AC power on the connector going to the monitor and my actual cabinet
> was showing me 7.2 Volts AC on pins 9 and 12 of the monitor connector. I
> also replaced all the fuses in my rectifier block; recently. All fuses
> show good with no resistances. I might also add that I just replaced all
> electrolytic capacitors through out the entire cabinet from the rectifier
> through the main board and monitor. I was just doing the usual
> preventative maintenance; once I was done with this process; the game was
> running great and the picture was fantastic. Then I let it burn in for
> about 7 or 8 hours and we lost neck glow. We still have deflection
> chatter, high voltage (right at 12K) and spot killer is currently off.
>
> I even took this monitor to my other known good working Asteroids deluxe
> cabinet just to narrow this down to this specific monitor.
>
> So here is my question: To verify that the heater has actually opened on
> the CRT I would just need to do an ohm reading across pins 9 and 12 on the
> back of the monitor's main connector. This is currently showing open. How
> can I do this same test bypassing the deflection board doing it straight on
> the tube? I have a bad feeling that my heater has just gone bad on me and
> I will be in need of a replacement tube.
>
> Thanks,
> Ed****
>

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Received on Mon Jan 2 20:11:35 2012