re: Cinematronics monitor help

The symptom is indicative of a bad LF13331 quad switch chip. The monitor is failing to latch the X destination so there
is no X travel. Both ends of the vector are located at the X starting point. Inside the chip there are 4 switches for
latching X start, Y start, X end, Y end. You can buy a replacement LF13331 from www.arcadechips.com That's where I
have purchased all of mine. BTW, I'm jealous, I always wanted a Rip Off game in nice shape. They rarely come up and
are always too far away.

Bill Boucher
www.biltronix.com

>
>
> I also just picked up a Rip Off game.  Everything seems to work except that the vectors are all vertical rather than
> going at the proper angle.  They are in the right location and correct length though so you can play it.  So a
ship
> that might look something like this:
>
> / - \
>
> WIll instead look like this"
>
> | | |
>
> Any ideas?  Not sure if it's the monitor or the PCB that's the problem.
>
> And while I'm at it....does anyone sell a full upgrade kit for these monitors that includes the parts listed int he
> Cinematronics monitor faq?  I'd buy that!
>
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Received on Tue Nov 22 12:43:55 2011