Author Topic: IGT S2000 VFD is blank - Machine will not boot up (Read 16180 times)

rescue161 · « **on:** June 05, 2016, 06:26:39 PM »

I've had the Crystal Sevens machine for a few years. Set up for home use. Still has WBA and coin validator set to 0.25. It has been working fine for years, but yesterday, while playing, the right wheel was making a crazy sound and spinning very slow. Display read REEL TILT. I used the reset key and it stopped and I went back to playing. Today, it did it again, but this time, after I reset the machine, the display would not come on. After several attempts, it showed RAM ERROR and some number. So I cleared the machine and then open/closed the door lock several times. I reseated the motherboard. The game worked for about 20 minutes and then started displaying CALL ATTENDANT during play. The game would freeze while this message was displayed. I pulled the enhanced sound card off of the motherboard and put the MB back in and all was well. I then put the enhanced sound back in and reset the machine. It complained about a mismatch and then worked great. I went to eat and left the machine on. Came back 20 minutes later and the VFD and the score in/out display was blank and the game was non-responsive.

I only have this one game. I do notice that all of the LEDs on the MB are lit and the bottom one blinks red. That is the only sign of life out of this machine aside from the back-lights.

Has anyone seen this? I am not getting the "No Disp" message.

KirkLasVegas · « **Reply #1 on:** June 05, 2016, 06:39:15 PM »

Start with the power supply, recap it....
Weak/wimpy power supplies in S2000 as well as 3802/3902 gameking and I-Games make them do completely nutty things.

Kirk

rescue161 · « **Reply #2 on:** June 06, 2016, 02:28:51 AM »

Thank you! Are there a ton of caps or is there a cap kit that I can buy? I have a bunch of caps here. I just don't want to rip it apart if I have to order something.

jonm287 · « **Reply #3 on:** June 06, 2016, 06:31:06 AM »

It depends on if it's a win tact, 3y or a few other different power supply manufacturers. Suzo Happ sells a kit, it has 15-20 capacitors in it if its a win tact. 3y uses half that.

If you're getting RAM errors, strange reel tilts and a blinky red light on the cpu, my first thought wouldn't be a power supply however... try reseating the RAM chips (will throw the game into a soft ram clear but you can just rest-key past that).

It wouldn't hurt to simply pull and reseat all the eeproms actually. Just make sure you don't have any broken/bent pins afterwards though, and none go in backwards.

rescue161 · « **Reply #4 on:** June 07, 2016, 06:09:31 PM »

This game has one RAM chip for the enhanced sound and none on the main board. I pulled every ROM and re-seated them. No bent pins on the chips or on the main board sockets. Machine is still dead. I suppose I'll just order a re-cap kit and see if that fixes the problem(s). It is strange how it has worked fine for years and then all of a sudden, it starts acting up.

Thanks for all of the help, it is much appreciated.

Sunrise Side · « **Reply #5 on:** June 07, 2016, 07:27:31 PM »

Have you removed the power supply and checked the molex connectors for hot spots?

Sunrise Side · « **Reply #6 on:** June 07, 2016, 07:29:33 PM »

Read this about the power supply repair. http://newlifegames.com/nlg/index.php?topic=10564.msg57350#msg57350

rescue161 · « **Reply #7 on:** June 08, 2016, 02:22:02 AM »

I will open the power supply tonight when I get home. Do the main boards suffer from "time-bomb" capacitors? I work on two-way radios for a living and the erratic behavior reminds me of how a Motorola Spectra radio will begin to act up as the old capacitors leak onto the PCB and erode away the traces.

jonm287 · « **Reply #8 on:** June 08, 2016, 04:50:12 AM »

The game had to have two ram chips in order to function. The sound simm is not technically ram, and certainly doesn't function as ram. If you could, post a pic of the board.

KirkLasVegas · « **Reply #9 on:** June 08, 2016, 07:38:58 AM »

The cap failures are not quite as bad as the ones in the Motorola Spectra mobiles (I still have a ton of Spectras).
The failure is they dry out.The cap might be marked as a 1000Mfd but a "ESR" meter shows they are like 50Mfd.
Some will be bulging on top or bottom, others will LOOK fine and even measure OK on a Ohm Meter (don't let that fool you).
I have this exact meter in the Youtube video (not my video). It's a "In Circuit" meter and not expensive.
Youtube Link https://www.youtube.com/watch?v=mO8zSemt0Bk

Kirk

brianfink · « **Reply #10 on:** June 10, 2016, 09:10:30 AM »

I would check the green varta battery on the MPU when they start to die on the enhanced board they cause crazy things to happen. there is a topic at the top of the s2000 board on how to remove it.

rescue161 · « **Reply #11 on:** June 12, 2016, 01:01:56 PM »

I was mistaken about the RAM. I just assumed that it didn't have any "extra" RAM as there are two empty slots. The green battery was removed years ago and the button cell was replaced. It is still reading 3V.

Here are pictures of the main board and the power supply label.

brianfink · « **Reply #12 on:** June 13, 2016, 09:43:51 AM »

SORRY I THOUGHT YOU HAD THE 1270 BOARD YOU HAVE A 500 SERIES BOARD WITH MML2. I THINK THE PPROBLEM IS MOST LIKELY WITH THE MPU BOARD I have had all lights on and red flashing when I put a chip in backward or one leg bent under / not seated properly. I have also had one do that with no apparent software issues. I just put in a spar board. I have not gotten around to trying to find out what is actually wrong with the board.

rescue161 · « **Reply #13 on:** June 13, 2016, 01:35:34 PM »

I wonder what would make the board just go bad. It has worked fine for years and doing nothing more than just not playing it for several months seems to have broken the machine. I have a power supply inbound, so I probably just need to order another MPU if I can find one that isn't damaged by battery corrosion.

brianfink · « **Reply #14 on:** June 14, 2016, 07:01:04 AM »

Ya I'm really not shore why they go bad sometimes. I have several with obvious battery corrosion but I have seen a few that look perfectly fine but just don't work. Might as well go ahead and try the PS first before you order a board. And if you want to spend a little more time and money you can upgrade to a 1270 but you have to change out the backplane as well.

rescue161 · « **Reply #15 on:** June 14, 2016, 08:27:14 AM »

What kind of price am I looking at to replace the back plane and the the MPU to a 1270? Is it worth the effort? Is the machine more stable after the upgrade?

brianfink · « **Reply #16 on:** June 14, 2016, 10:40:02 AM »

I'm not really shore what they are going for right now. The only real difference on a standard s2000 is they are newer used electronics.

rickhunter · « **Reply #17 on:** June 14, 2016, 10:56:28 AM »

The other improvements for the 1270 upgrade are no hiss on the sound and the ability to use the R-boards for the newer themes.

rescue161 · « **Reply #18 on:** June 14, 2016, 12:20:37 PM »

Ah, I forgot about the hiss... If I remember right, I think I used some resistors to get rid of the hiss.

rescue161 · « **Reply #19 on:** June 14, 2016, 02:03:09 PM »

Bought another MPU and went ahead an bought an illuminated "insert bill" sticker and a new bezel as mine was cracked. The only thing left to buy is a "10,000" insert for the top glass. Someone made a "6,000" jackpot insert, but I changed it to 10,000. I can't locate one of Ebay, probably because I'm not sure what the actual nomenclature is for that item.

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Author Topic: IGT S2000 VFD is blank - Machine will not boot up (Read 16180 times)