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bodger319
MAME Fan
Reged: 01/23/06
Posts: 287
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Re: Real 720 controller to Optipac for MAME help.
07/13/15 05:58 PM
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> When everything is hooked up to the Optipac, I am only getting 4.7 volts
> between the +5 wire and grnd. Is that okay?

A quick bit of googling suggests this might be the cause.
The LETA chip apparently plays up if the supply voltage is below 4.8V

http://forums.arcade-museum.com/showthread.php?t=15768#Post252216






Entire thread
Subject Posted by Posted on
* Real 720 controller to Optipac for MAME help. peartolomy 07/12/15 11:26 AM
. * Re: Real 720 controller to Optipac for MAME help. bodger319  07/13/15 05:58 PM
. * Re: Real 720 controller to Optipac for MAME help. grog  07/12/15 10:36 PM
. * Re: Real 720 controller to Optipac for MAME help. peartolomy  07/13/15 02:17 AM
. * Re: Real 720 controller to Optipac for MAME help. grog  07/13/15 12:24 PM

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