Pressure Sensor of Chess Computer not Working

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brbgyn
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Posts: 3
Joined: Wed Mar 16, 2016 3:46 am

Pressure Sensor of Chess Computer not Working

Post by brbgyn »

Hi everybody,
since there is no "Chess Computers" category in the forum, im asking here in the General Discussion..
I have a Radio Shack Chess Computer 2150L Cat No 60-2254, but a few squares of the board are not working.

The pressure sensor may be damaged for this specific squares (about 30 squares).. How can i replace it ?

I could not manage to remove the board sensor… Its stuck in the plastic case..

Take a look at this picture i took:

Image

This is the board front side. There is no way to remove it from here too:

Image

Thank you
Larry
Senior Member
Posts: 2269
Joined: Wed Aug 01, 2007 8:42 am
Location: Gosford, NSW Australia

Post by Larry »

Early in your post you mention "a few squares", and later, "about 30 squares". If the faulty squares are all on the same rank or file, that
points to a bad connection between circuit board and playing surface.
If the problem is on random squares, it's bad news. This is an advantage
with auto sensory boards. Individual squares can be repaired. On a
pressure sensory surface the switches depend on the elasticity of the
laminate material, which reduces a little more every time the game is
used. Sorry to have to tell you this, but it does happen to all of us sooner
or later, so you are not alone.
The chess computer graveyard up in the sky is full of comps with the
same syndrome you are facing. The mainboard is fine, so I can only
suggest you put the game away and keep a look out for a replacement.
all the best to you...
Larry
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Bryan Whitby
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Joined: Wed Feb 18, 2009 9:57 pm
Location: England

Post by Bryan Whitby »

Scrap it there is nothing you can do and these cheap Radio Shack chess computers. As Larry says, keep it for spares just incase you buy another one.
Bryan
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chesspcmac
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Posts: 250
Joined: Sun Feb 05, 2012 2:58 am
Location: Richmond, Virginia

Post by chesspcmac »

Larry, You could have been a doctor!! nice way to break bad news!!
Larry quick question, the LCD display for Polgar mephisto can be used for other mephisto modules?

Thanks

Chess addiction regards

Mike
"Sir, the slowness of genius is hard to bear, but the slowness of mediocrity is insufferable"

Henry Thomas Buckle
brbgyn
Member
Posts: 3
Joined: Wed Mar 16, 2016 3:46 am

Post by brbgyn »

Thank you Larry,

Very interesting..

Looking up for defective squares more closely i noted that only 1 row has functioning squares !

Coincidence ?
Larry
Senior Member
Posts: 2269
Joined: Wed Aug 01, 2007 8:42 am
Location: Gosford, NSW Australia

Post by Larry »

chesspcmac wrote:Larry, You could have been a doctor!! nice way to break bad news!!
Larry quick question, the LCD display for Polgar mephisto can be used for other mephisto modules?

Thanks

Chess addiction regards

Mike
Hi Mike, to be short and blunt, no, they can't. :(
L
Larry
Senior Member
Posts: 2269
Joined: Wed Aug 01, 2007 8:42 am
Location: Gosford, NSW Australia

Post by Larry »

brbgyn wrote:Thank you Larry,

Very interesting..

Looking up for defective squares more closely i noted that only 1 row has functioning squares !

Coincidence ?
Hi, just sent you a personal message.
take care...
L
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