Adventures of Rocky and Bullwinkle and Friends, The
Data East, 1993
Back to the Future: The Pinball
Data East, 1990
Batman
Data East, 1991
Checkpoint
Data East, 1991
Guns N' Roses
Data East, 1994
Hook
Data East, 1992
Jurassic Park
Data East, 1993
Laser War
Data East, 1987You're currently viewing posts by Pinsider bax1.
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anyone happen to have an mpu ver 3 that they could let go? or if you may be able to help with what I have going on with mine. It has had a lot of work done on it due to battery damage and now that it is all cleaned up, the 50v coils fire when in flasher lamps test mode. no flashers but the coils fire. this is for a r&b
Quoted from Number41:I had this happen with my old MPU board in Tommy. It turned out that some battery acid had dripped down into the CN12 connectors on the bottom left of the board and they were linked to the L/R Relay on the PPB (if I remember right). This caused the relay to malfunction and coils to fire instead of flashers. Re-pinning the connector and changing out the wiring fixed it.
Thank you for the tip. I'll give that a shot
https://pinside.com/pinball/forum/topic/data-east-irq-section-
Anyone familiar with the irq section on the mpu?
looking for sound board help. So I picked up a LW3 recently and the pot was shot. changed it out and sound is now working. I am getting some voice glitches from time to time. sometimes voices are not calling out when they should and then sometimes it does. A few times I was getting the tone from sound test during game play. any guidance is appreciated. I am wondering if it's the processor, pal, or the bsmt2000?
Also, does anyone have their dmd games with a stereo pot installed? All three I have just have a ground, in and out installed. Wondering if it will make a difference. Manual shows it should have been set up with one but didn't have the wiring.
Need some help with the data east sound board guru's. Working on a lw3 sound board and have never had to work on a sound board before. Here is what is going on. Have music and only a couple call outs. majority of the call outs are missing. here is what I've done so far. New ribbon cables, had to replace the pot due to it being blown, redid the connector from the pot to the board, verified roms are good, pulled ram and verified good, swapped out the 6809E with a known good one, pin 4 on bsmt2000 shows high on logic probe. in sound test it can be intermittent, sometimes you get the tones from left both and right, sometimes the voice test works but says something different than what the manual says it should say. Thinking need to check the pia's on the mpu but guidance is appreciated.
Quoted from STLOkie:How did you verify the ROMs and RAM? I had a similar issue with similar troubleshooting and my solution was simply to replace all the ROMs with new ones. I probably could have got away with replacing only the one bad ROM but the issue was tricky to isolate so it was easy and cheap just to replace all three.
buddy has a rom burner so we verified the checksums vs the files and they are the same. for the ram he has a ram tester as well. we had to test it as a 6116 but that is the cross ram.
Quoted from Bax1:Need some help with the data east sound board guru's. Working on a lw3 sound board and have never had to work on a sound board before. Here is what is going on. Have music and only a couple call outs. majority of the call outs are missing. here is what I've done so far. New ribbon cables, had to replace the pot due to it being blown, redid the connector from the pot to the board, verified roms are good, pulled ram and verified good, swapped out the 6809E with a known good one, pin 4 on bsmt2000 shows high on logic probe. in sound test it can be intermittent, sometimes you get the tones from left both and right, sometimes the voice test works but says something different than what the manual says it should say. Thinking need to check the pia's on the mpu but guidance is appreciated.
SOLVED. used logic probe on pia on mpu and found a couple legs stuck on low. Pulled and put in the tester and tested bad. swapped with a new 6821 and have all sounds now.
So got some strange stuff happening with lah. So all of a sudden the high power on my left flipper died. It would slowly go up and stop at the end. I did do a flipper rebuild and prev owner did not have eos hooked up. Now fresh ones are installed and properly gapped. Led light does not come on in the flipping board. All fuses are good. Noticed the windings on the coil were loose so replaced. Since replacing the coil I have nothing. Have 6v if I remember right when button is pressed. Pulled flipper board and used a pulser and logic probe. Signal is getting from one end to the other so assuming no dead shorts. Need you data east gurus for some advice on where to go. Mpu?
Quoted from PinballManiac40:Test the ohms on the EOS switch contacts. I bet it will be more than 2 ohms and has some coating on the contacts so clean with a business card and make sure the long blade pushes the short blade when the flipper comes back to rest.
Push on the EOS switch and then the flipper button. If It fires, definitely EOS switch issue.
This did it! Was thinking eos but didn’t think to clean and tighten it up. Thank you sir!!!
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Westland, MI