Bally E2000 Help Needed

[gkulp]

Been a long time since I've been here.  My old membership timed out.  Last time, several years ago, help from here got my machine (Bally E2090-328) from the grave up and working.  It sat for quite a while, and now it is again closer to the grave than working.

Power on, and I get a 1 code which I read as a Normal RAM Failure.

Any ideas?

Thanks a bunch.

[dhellis]

A lot of these early E2000 machines still used the E1000 MPU board. The E1000 MPU board has the
ram board mounted on pins, these pins will get dirty and the ram board connectors can go bad.
Your solution could be as simple as pulling the ram board off and re-inserting it.

If it is an E2000 MPU then your only real option would be to swap the rams with known good chips.

[gkulp]

Any ideas where I can get my hands on a couple ram chips?  I believe they are SCM5101E-1.  Also, I believe there are two.  Please correct me if I am wrong.

Thanks again to all.

[dhellis]

I see them on eBay and these are the same as the ones used in the slot machine.

http://www.ebay.com/itm/5101-CMOS-RAM-chip-for-Bally-Stern-Williams-Gottlieb-and-more-/281132642645?pt=LH_DefaultDomain_0&hash=item4174cfb155

[gkulp]

Just pop out the two old chips and pop in the two new chips and turn it on, and it should initialize?  Any issues with orientation, or does top and bottom not matter?

Thanks again.

[dhellis]

There is a notch on the chips which should be pointing towards the center of the board.

If this has the separate ram board there is a white dot indicating pin 1, so the notched end of the chip
will go in that direction. The E2000 board has an outline of the chip and indicates the notched end.

[gkulp]

It's the E2000 board.  I pulled the two chips out and reset them last night.  Must have had them up-side-down.  When I powered up, the machine went haywire with al kinds of switches activating.  I shut down, and flipped them, and back to the non-operational mode.  I'll put the RAM order in this morning and will get back to you later in the week once I receive them with a status report.

Thanks again.

 

[gkulp]

I popped the new ram in tonight, put everything back together, and .......... no change.

Flip the power on and the same code appears on the pay line. 

blank, blank, blank, period, period, blank, one.

Another tidbit of information.  When I power up, there is a buzzing sound coming from the back-left of the unit.  This does not stop till I hit the reset button.

Anyone have any new ideas?

Thanks a bunch.