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My 82-70 with omega tec boards will not set a full rack after a strike has been thrown. It always wants to respot nothing. I believe this to be a wire problem on the table, like a respot wire gronding out but I cant find it. I don't think I'm looking the right way. Any suggestions on how to track down a respot cell grounding?
by the way I did swap chassis with no improvement.
I dunno about all the different sub-generations of AccuScore, but I'm pretty sure that the scoring should do the strike cycle for you on a single-board conversion. If so, you'd probably be scoring less pins than were knocked down.
If not, table cable plug may be loose, there may be a terminal grounding on the TAC board (between CSM capacitors), or it may be insulation cracked off of a wire somewhere.
Short test:
Sweep off pins.
Unplug table cable.
Put the two fat yellow wires together on the TAC.
Cycle the machine (1st ball).
This will isolate it to the chassis side or the table side of the TAC.
Do you have expanders with the MK-70's or just MK-70's in the chassis? Also is the table running when it wont set pins? Or if you do have expanders is it running a strike cycle then setting nothing? We have MK-70's and expanders, so either I or one of the other guys here will help ya figure it out if you dont on your own I'm sure [img]/content/btubb/images/%%GRAEMLIN_URL%%/smile.gif[/img]
Originally posted by CommunityBowl: Any suggestions on how to track down a respot cell grounding? [img]/content/btubb/images/%%GRAEMLIN_URL%%/usflag.jpg[/img]
<font size="2" face="Verdana, Helvetica, sans-serif">I think you are on the right track there , Grounded Table wire .
Not sure if you are running 10 single Table wires or a Common Table wire with 10 drops to the Respot Cells .
Either situation , this will help you out :-
Run the Table to Respot Position ( Lowest Point )
Kill the Power [img]/content/btubb/images/%%GRAEMLIN_URL%%/eek.gif[/img]
Get a Multimeter & set it to 200 Ohm range or Continuity tester out
Find a GOOD GROUND POINT on the Table , Test that it is GOOD by testing to any Respot Cell Body , you should show continuity or Low Ohms ( 5 or less )
Test to Each Respot Cell wire Tab , YOU SHOULD SEE NO EARTH ON ANY !!
Pull all the Table wires Off If you see any continuity to any Respot Cell .
Work your way around all 10 until you find the Respot Cell that is grounding out
It will probably be OBVIOUS , The Screw will be Fully WOUND IN OR WOUND OUT most likely .
Sounds Messy , But it's easy , Takes about 5 mins to do .
after about an hour of searching and chasing last nite and 2 in the morning I found it!1 The little plastic wire holder that goes in the trak by the 7 pin had a broke wire in it and in the down position it would twist through the slot that you insert the wire in and ground out. I pulled it out earlier and the wire was tight enough that both broke ends stayed in the plastic so i didnt see the broken wire!!! What a pain. By the way I dont have the expander boards. What do they cost and are they worth it? Easy to install?
In my opinion if ya have some time to do a little rewireing and the cash then by all means get the expanders, they're great (provided you have scoring that will interface) so many less headches by having them, no more babysitting cell wires [img]/content/btubb/images/%%GRAEMLIN_URL%%/wink.gif[/img] The wiring for them is not that bad at all from what I heard (They went in where I work years before I started there)
P.S. Even without expanders, VanTech scoring eliminates all your table wiring (except for GPS which is a necessary part of the machine in my opinion). I dunno if other scorers have long strike cycle function or not...
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