Re: Lunar Lander Problem TECH HELP

On Jul 29, 8:44am, Jess Askey wrote:
> Subject: Re: Lunar Lander Problem TECH HELP
> that is a strange one. Do the lamps share a power supply with something else
perhaps? I
> can't remember if the CPU has the ability to turn on/off those lamps but Im
guessing that
> they share the same power supply as the coin door lamps. Do the coin door
lamps pulsate as
> well?

Yes, the CPU controls the lamps. The instruction lamp is always lit, and when
there are no credits, all lamps should be lit.

One way to solve this problem would be to put the game in free play ;-).

If I remember correctly (which is rare), I believe the lights are powered by
the 10.3VAC from the power supply, and each lamp has a diode, cutting the
voltage in half to +5.1DC. If that's the case, I would suspect you should
check the diodes in the power supply block, and maybe replace the big blue cap.

I see wiretap has the schematics, but is missing Sheet1A?

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Mark Jenison E-mail address: jenison@cig.mot.com
Cellular Infrastructure Group Motorola--Arlington Heights, IL
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Received on Thu Jul 29 10:05:20 1999