time for another s2k problem with my backlites

[staz]

  all of a sudden i turned on my s2000 and my backlites didnt dimm up....... i started playing the machine and no backlites light up on any winning combos........ i replugged all the plugs nothing....... now heres the strange part i did a io test on the backlites and they all lite up one by one on the test........ what could be wrong?

[staz]

i swapped out my backlite controller from my  other machine and still no lights

[CVslots]

  is right.....MPU? Hmm....thats a weird one...

[staz]

swapping parts from my top dollar!!! so far this is what i did.....

1- swapped out reels,same issue no backlites with different reels......
2- swapped out wire harness that goes in bl controller from io board same issue no backlites.......
3-swapped out backlite controller same issue no backlites........
4- did a io test on lights and every light lite up one at a time........

running out of options?

[CVslots]

MPU!!

[staz]

just swapped mpu still no lights.......

[staz]

okay my next idea is a bad connection from the harness....... now theres 3 plugs in the backlite controller....... the one on the side plugs into the io, i put that one in my top dollar and it worked fine so that isnt the problem........ has to be the other 2 plugs...... the 4 pin plug where does that go from backlite controller? also the other plug whats it do that plugs nevt to it?
i will pick up some deox tomm...... and try spraying the plugs if that doesnt work ill get a new harness..........

[Foster]

If the reel lights work doing the reel light test, then you might be having a base chip issue or the base chip does not support back lighting.

The 4 pin is actually a 6 pin, it is power and comes from the PS behind the reels

The other connector is the reel harness, 3 reel has 5 connectors the other end connects to motherboard

[staz]

swapped io cards no change no backlites........why would the base chip all of a sudden not support backlites?? i had backlites over 2 years now on this machine......other people on here have the same software with backlites......could it just be a bad harness? but if the harness was bad why do the lights work in test mode?.......... very weird!!

[CVslots]

just swapped mpu still no lights.......

Did you swap chips when you swapped MPUs? Try it with a different SB chip (any game with backlits).

[cowboygames]

Staz, it sure appears to be an SB chip problem and you could sure try a differant chip, but in your case the most prudent thing to do would be to get a new matching chip to try it. With the games you have you can't just throw any SB in there for a test without swapping top box bonus games also. If you have a standard game SB you can try ot as long as you unplug the top box bonus game from the motherboard otherwise you'll get netplex errors that won't allow the game to start

[staz]

just tried using a different sb chip from another game still no lights.....i used  xxf double 3x4x5x sb chip same results......

[staz]

from looking back this was a reacurring problem in may........ last time i swapped the backlite controller and it worked for 1 day then the lights stopped then i played with the plugs and it worked till now......... im gonna go get some deox and spray them and see what happens......

[staz]

how long does deox take to dry? before i can try to power it up?

[staz]

well deox didnt work so i tried swapping reel harnesses that didnt work either...... i cant think of anything else to try?

[staz]

i tried everything............   all day project.........

1- swapped out mpu with different sb chip
2- swapped out io card and io harness to bl controller
3- swapped out reels
4- swapped out reel harness
5- swapped out backlite controller
6- deoxit connectors

WHAT ELSE CAN I TRY????????

[Yoeddy1]

Since we're grasping...how bout a clear/key?

Jason

[brokenticker]

It might be your backplane board , i had one that had burned traces on it after installing leds  and light were out ?   

[staz]

heres the weirdest thing ever running out of ideas i said let me swap out the controller again with my original one that was in the machine when i got it and see what happens..... that didnt work so i put my other one in and poof the Fen lights go on........ i cant explain it?????? till i get a logical explanation what made the lights go on ill keep my fingers crossed that they will stay on......

[cowboygames]

If unplugging and plugging the origional board back in worked I gotta ask, do you ever turn your machine other than for service stuff?

[staz]

If unplugging and plugging the origional board back in worked I gotta ask, do you ever turn your machine other than for service stuff?

what do you mean??

[cowboygames]

Do you generally leave your machines turned on all the time?

[staz]

no i shut it off like every day i try not to leave it on....... to hott in my room with 60 inch plasma and 3 slot machines lol.......i cant figure it out either why all of a sudden they work now after i put in the original controller and take it out.......

[Yoeddy1]

The same reason why I can make the VFD go blank with a Munsters SIMM in my Double Diamond Deluxe kit, but bring it back to life ONLY if I feed it a DSV00042 again.  It's firmware voodoo I tell ya!

Jason

[cowboygames]

I'm wondering if maybe you have a trace or solder connection that goes bad on that board after it gets warm enough.  Do you have the door optics bypassed on that machine?