I'd be following Sylvain's suggestoins then under the PF, and look for anything that could be touching something that it shouldn't. If the switches register correctly in switch test and solenoids all work correctly in test....
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It could just be bad pins in the connectors or cold solder joints on the headers that Sylvain mentioned, it's a common issue. You can put side pressure on these connectors while the game is on to see if the issue goes away.
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If all the switches work correctly in switch edge test, I would suspect an issue on either the connectors between the MPU and the driver or an issue with the decoder chip on the driver. If you toss the game into solenoid test and all the wrong coils are firing or the same coil fires more than...
MJF did in fact refuse his likeness on the game, but never heard the reason why... I personally don't mind the game but like many DE games pretty much comes down to one shot.
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If it's in fact the yellow set on pins 6 & 7 that drives the sub then you're looking at the TDA @ U102. I will say the red set of wires in the IDC connector looks suspect too, like the wires got pulled out and someone mashed them in again with whatever they could find...
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Yep, sorry I was looking at the SAM schematics I guess? As for which one, you will have to tell me which 2 pins of the speaker connector go to the lower cabinet and then I can confirm via the correct schematics.
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Ryan,
As we discussed previously, this is likely an issue with the amp section on the MPU/Sound PCB. This game uses two TDA2030 amp's (U50 & U51), one for backbox and one for lower cabinet. I am willing to bet that the one powering the lower cabinet speaker is blown and needs to be replaced...
Nope, with that kind of PF wear I'd say no way 3K. And if you couldn't get in the backbox who knows what the driver and MPU look like... trouble is SOMEONE out in Kijiji land would likely give him close to his asking if not the full 3K these days. Silly...
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Nope, once the wire has been compromised you either need to connect it back togher with an approved device like a marrette etc and enclose that in an accessable box (any AC wire that is connected together must be accessable at all times per code), or rip a whole new wire. If it was low voltage...
Yeah, 24" is the recommended but 18" is code. Just trench where you need the wire to go 24" down, lay the cable and backfill if the wire is not compromised anywhere.
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