Re: TOEI 20" vector monitor

What is the model number of this monitor?
I thought most uprights used the LAI-KZ-20XYB

Thanks
Tim

-----Original Message-----
>From: Chris Hardy <chris@hardys.plus.com>
>Sent: Mar 19, 2010 2:13 AM
>To: vectorlist@vectorlist.org
>Subject: VECTOR: TOEI 20" vector monitor
>
>Ok, long shot here.
>
>I'm finally fixing my Alca Planets cab the night before taking it to an
>arcade meet and I'm trying to work out what the b+ voltage should be.
>
>It's a 20" Toei XY monitor with the 'block' amplifiers. My pcb doesn't
>exactly match the available schems, or the schems that came with the
>machine. Both seem to be for the 14" cocktail version.
>
>The schems online shows a handwritten 200v for the voltage going to the
>neckboard. My two boards which I'm trying to repair show 33v and 63v which
>seems very low.
>
>One chassis that was working blew a small transistor in the SMPS area and
>replacing that gives me a picture but I have to turn up the brightness and
>the Z signal doesn't affect the vectors. (it does something as adjusting the
>Z amp on the monitor changes the brightness).
>
>The picture takes a long time to show as well, which I would guess is a
>symptom of a low heater voltage on both boards.
>
>Any suggestions would be appreciated.
>
>I guess there aren't many people with these monitors in their machines.
>
>Thanks
>Chris
>
>
>
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Received on Fri Mar 19 14:26:24 2010