1994 triple diamond deluxe error code

[Greaty]

i was told by one of the regs that it doesn't hurt to have spare parts especially cause the machine is getting older and parts eventually will come near impossilbe to find in the future.still trying to figure it out tho so i can actually have spare parts! lol

[Greaty]

  so its fixed i put spare reels in first but with no luck it came up with same code so put the old reels back in and then replaced the mpu board that did the trick. but now my question is can i replace the reel chips on old mpu board so that i have a spare? what chips would i need to replace and where could i get them?
thank you to every one who helped.

[knagl]

The problem isn't likely in an EPROM chip on the bad board, but rather one or more components on the board that have gone bad.  I have not done board-level repair on a S+ MPU, so I'd have to defer to someone who has.

Well, I take that back -- I just had a thought cross my mind.  Did your machine ever work with the old board?  Was your old board a 16 MHz board by chance?  If you're not sure, take a look at this post to see the differences between a 10 MHz and a 16 MHz board.

Also, what SP chip was in the old board?

If you try to use a 10 MHz SP chip on a 16 MHz board, one of the symptoms is that the reels get all wonky, which could result in reel errors.

[Greaty]

it is a 10 mhz and yes it did work. then it had a error code of 41 but if i messed with the reels i could get it to spin again but it would only work for about three spins. when it hit the nudge feature the one would nudge up then the rest would shake a little. now when i did the new board it works fine with no shaking of other reels during the nudge feature.

[knagl]

Did you use the same SP and SS chips (ie. did you transfer them from the old board to the new board)?

If you are not using the same SP chips, what SP chip was on the old/bad board?


Again, I'm no expert on board-level repair, but I seem to remember that there's a bank of five resistors near one of the edges of the board that hold the reels in place when they're not supposed to be moving.  If one (or more) of them is failing, it could cause reel errors.

[Greaty]

i only changed the game prom and the reel prom that was it. just noticed dollar bill validator is not accepting bills now, how do i fix that?

[rickhunter]

You probably need to enable the validator, you will require a SET chip in order to do that.

[Greaty]

the bill validator take the bill in holds for five seconds then spits it out. the chip in the bottom of the head is a 2.51, if i do need the set chip what one would i need?

[knagl]

If the bill validator is taking the bill in, it's already enabled and you would not need to use a SET chip to enable it.  To test, use only a $1 bill in good condition.

Did your machine previously accept bills? 

Are you using the exact same SP chip that you were previously using? 

When it is holding the bill before it spits it out, does the Insert Coins lamp flash?  If so, the bill validator is set to the wrong ID.  You haven't told us what kind of validator you have, so it's tough to tell you for sure how to resolve that until we know what you have.

[Greaty]

sorry here are some pictures. i replaced the game prom chip and the reel prom chip from old board. yes it did take bills before i switched mpu board. the insert coin light does not go off when bill is inserted.