If the front panel board has power, the latches that control the LED's may simply come up
in the state that would light the LED. Normally the CPU would turn them off right away,
but if it's not running, then they stay on. So the KLM board is not turning them on.
It's just not turning them off.
You soldered the big gnd wire to the copper on the edge of the KLM-367, near the battery, right?
If you don't have good power on the KLM-367, use your ohmmeter to measure continuity
between the power supply and the KLM-367 for each voltage and ground. (with power off, of course)
Bob
--------------------------------------------
On Sun, 2/7/16, jw_dewdney@yahoo.com [PolySix] <PolySix@yahoogroups.com> wrote:
Subject: [PolySix] Re: The Post I didn't want to make....
To: PolySix@yahoogroups.com
Date: Sunday, February 7, 2016, 8:01 PM
but still... lighting everything up on the top of
the polysix - no voices - and the bad voltages on the 367
board make me think something along the lines of ground
fault somewhere on the board... any ideas or suggestions for
a strategy to troubleshoot? I'm going through the
schematic and trying to figure out what could do that... but
no luck yet
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