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  Voice Sensory - The Inside Story
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   Author  Topic: Voice Sensory - The Inside Story  (Read 652 times)
Mike Watters
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Another day, another blunder.

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Re:Voice Sensory - The Inside Story
« on: February 20, 2006, 02:17PM »
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Alain

Lol !! 

But you would get more entertainment from an endings book like Tom's VCC.

Mike
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Alain Zanchetta
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Re:Voice Sensory - The Inside Story
« Reply #1 on: February 20, 2006, 12:32PM »
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Hi Mike,

You seem ready to write an original Chess Openings book 

Best,

Alain
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Mike Watters
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Re:Voice Sensory - The Inside Story
« Reply #2 on: February 20, 2006, 10:19AM »
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Hello Jose

The Sensory 9 opens by undoing the two screws you see in the battery compartment. Take off the two felt pads at the back (not the piece compartment  ). These let you insert a screwdriver into the holes where you press long plastic prongs clear of the other half of the case. The case then opens up pivoting around the front and then clear.

For a really tricky case opening I will do a thread on the Novag Constellation - The Impregnable One. 

All the best
Mike

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Jose
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Time to play Chess!

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Re:Voice Sensory - The Inside Story
« Reply #3 on: February 20, 2006, 02:33AM »
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Hi Mike,

is it difficult to open the Sensory 9,  oder CC8, or Gambit or all that kind of computer? Can´t i destroy something if i want to open? Where is the point, i have to open the machine 

Greets and thanks José
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Mike Watters
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Re:Voice Sensory - The Inside Story
« Reply #4 on: February 20, 2006, 02:20AM »
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Quote from: drawmeister on February 19, 2006, 11:40AM   

Hi Mike,

I have a fidelity Par Ex with an LED out, if you get good at this i am sending it to you for repair !   

Ian.
Hi Ian


How good do I have to get?

Just taken the Sensory 9 to pieces, which is easier than a Voice Sensory but still a little tricky. I find that the Led board for the Sensory 9 (1982) is the same as for the Voice Sensory (1980). The only difference I can see is that the Voice Sensory says Rev 1, and the Sensory 9 says Rev 5.

Perhaps a Par Ex says Rev 6? 

Same old Fidelity regards
Mike
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drawmeister
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How about a nice game of chess ?

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Re:Voice Sensory - The Inside Story
« Reply #5 on: February 19, 2006, 11:40AM »
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Hi Mike,

I have a fidelity Par Ex with an LED out, if you get good at this i am sending it to you for repair !   

Ian.
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Mike Watters
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Voice Sensory - The Inside Story
« Reply #6 on: February 19, 2006, 01:56AM »
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Hi All

You can get a taste for minor repairs to chess computers, if you are not careful.

I took a Fidelity Voice Sensory apart yesterday to mend an Led. This only required resoldering because the Led came alight sometimes when pressed and then went out as soon as the chessboard flexed. This is not surprising because Fidelity seem to have used much less solder on their PCBs than other manufacturers. As the press sensory boards flex on each press, such failures seem inevitable.

Having completed the task I would not recommend taking a Voice Sensory apart for a very minor repair like this. There are a number of things to disassemble and some potential causes of problems



Getting the case apart is a pain. First there is the easing off of the felt pads to get to the plastic retaining prongs. Then prise out the plastic thingie that retains the single prong nearest the display. Then split the case by shifting each of the prongs in turn. This only gets you so far because you then have to take apart the connector with the long metal prongs and prise off the 6 little "wheel washers" that hold the display and rear keypad to the case, To get to the point shown in the photos you also have to detach the two push-on ribbon cables.





At this point you have a good view of the guts but you have not got access to the Leds yet.



You have to separate this PCB from the chessboard itself.



and eventually the Leds are revealed.



h8 was the problem and here you see h8 and the other rook squares lit after I had resoldered it.



and after reassembling.

What's next. A Sensory 9 with f7 out. I am still sticking to the easier repairs. 

All the best
Mike
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