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Road show Switch replacement

Tomshine

Registered
Joined
Sep 13, 2021
Messages
165
Location
Surrey
Hi all, looking to find the correct switch for roadshow - mine appears faulty.

Assuming all of these push switches are all the same but it’s the one circled that isn’t working.

Thanks
Tom
 

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Thanks both, appreciate your replies. I did give it a good clean and checked the cabling but still not working. I’ll grab one from above.
 
Probably NOT the target. Could be a wire off another switch in the same row or column daisy chain. Or a faulty diode on that target.
 
Tom,

When in a Switch Test, it is okay to link the Column and Row wires together to eliminate the switch and diode, or to by-pass the diode if that's under suspicion.

A continuity test across the switch itself would show if it's making contact. There really isn't much in the construction (pun not intended) of the target to cause an unseen failure; a micro-switch can fail internally, but the contacts of a spot target are in the open.

In addition to the playfield parts page, look at the switch matrix and locations pages. That target is switch number 82, which indicates Column 8, Row 2. In switch test, check each of the other switches listed for Col. 8 and Row 2. It's quite likely that one of those lines has broken at another location, Col 8 seems to include a few spot targets, which are noted for it.

In fact, all but one of Column 8's switches are around that mid-left area, three targets and the two rollover wires leading to Blast Zone.
 
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A ohms meter is what everyone should have, checking the switch is quick and simple.
no need to spend a fortune on a meter a cheap one will give you the results you need £20 maybe, if your repairing for a living then of course you would spend much more and buy a Fluke meter or other branded names.
 
Thanks everyone for your detailed messages, given me some great pointers for this issue and the future.
 
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