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  Tempremental mephisto display module
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   Author  Topic: Tempremental mephisto display module  (Read 666 times)
Chris
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Re:Tempremental mephisto display module
« on: January 30, 2009, 02:18PM »
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Thanks Steve, for your helpful reply.  It is stored in a coldish room and hadn't been used for a while.

Hopefully, your post might be of use to someone else in the future also.

Kind regards

Chris
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sderyke2002
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Re:Tempremental mephisto display module
« Reply #1 on: January 28, 2009, 04:57PM »
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It almost certainly has to be due to a static charge forming on contacts or somewhere in on the circuit board.

Often times these external modules were very sensitive to being inserted into or removed from a unit, and heaven forbid you would do it when the unit was on!! eek!

The leaving them out over night allowed the unit to have the charge leak off made the problem disappear.  Of course the time of year (winter with its dryness) tends to make the problem more likely. 

I hope for your sake it never shows up again.

Grounded regards,
Steve
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Chris
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Tempremental mephisto display module
« Reply #2 on: January 28, 2009, 02:35PM »
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Hi All,

I thought I would recount this tale to see if anyone could explain or had experienced it before ...

I was fortunate to acquire a new engine module recently and set it up in the board as usual. When I turned on the power the display module showed all LCD segments lit (8888).

I tried turning off and restarting again several times, switching adaptors, switching module slots but all to no avail, (re-inserting the original MMIV module also did not work) so eventually I gave up depressed and went to bed.

Next day, no change, exactly the same problem but the day after I thought I would give it a third and final go. Lo, I turned on the power and at the first time of asking up immediately popped 'Play' and everything operated perfectly which it has subsequently continued to do.

I can't explain why the display suddenly started working after this time. Of course, I'm delighted with the end result but am uncomfortable with not understanding what might have caused this.


Best wishes


Chris
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