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Print Page Chess Computer Community
    General Category => Discussions about Chess Computers => Message started by: danox574 on February 26, 2011, 09:07AM
	

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Title: Sensory Challenger 6 display
Post by: danox574 on February 26, 2011, 09:07AM

I've got a cosmetically very nice Fidelity CC6 with a display problem -- 6 of the 14 LED segments out on the display. I've attempted to troubleshoot and reflowed a bunch of solder, but now I'm starting to think the problem is the driver chip (especially since 8 work and the rest don't and drivers are usually handled in banks of 8). Any schematics available for fidelity units, or is there a common failure for this type of unit that I should be turning my attention to?


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Title: Re:Sensory Challenger 6 display
Post by: marko on February 26, 2011, 10:01AM

[quote author=danox574 link=board=1;threadid=2063;start=0#msg13215 date=1298740056]
I've got a cosmetically very nice Fidelity CC6 with a display problem -- 6 of the 14 LED segments out on the display. I've attempted to troubleshoot and reflowed a bunch of solder, but now I'm starting to think the problem is the driver chip (especially since 8 work and the rest don't and drivers are usually handled in banks of 8). Any schematics available for fidelity units, or is there a common failure for this type of unit that I should be turning my attention to?
[/quote]

I have repaired a couple of old chess machines with bad LED displays. The problem has been with the LED modules - some of the segments burn out after a while. Try lighting each of the segments by jumpering or applying voltage directly to the LED module. If the module is bad you can usually find a replacement. Hope this helps.



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