Hi all,
Here the background to the problem I have:
Machine is an IGT S2000 Triple Double Red Hot 7s 5 Reel machine.
This machine has been working fine up until a few weeks ago. The machine has not been moved.
On powering up, all of the yellow/greed LEDs light up and the bottom (red) LED flashes.
I green Varta battery has been removed (by the vendor of the machine - a company in the USA).
There is power to the reels and the lights.
The display on the front (credits etc) is blank.
I have Key chip KEY0045 and clear chip IVC0224.
The game chip is SB100928.
As I'm in Australia, I don't have access to anyone local to try out a board from a different machine etc.
I've read a few posts on here from people who's had a similar problem and have tried these things:
- checked as many of the connectors in the machine as I can are seated OK.
- replaced the button battery (CR2354) on the board. This is reading 3.02 volts.
- looked at the area where the Varta battery was and this looks fine. Friend checked that the soldering there is fine with a voltmeter.
- pulled the eproms from the board, cleaned the pins and re-seated.
- re-seated the MPU unit in the motherboard.
- put in the clear chip (IVC0224) to try a clear. *Even with the clear chip in, the red LED flashed*. I was unable to do the clear procedure.
Some other things I've noticed
- the two I/O connectors on the door have orange LED lights lit up. The similar I/O connector on the side of the processor mounting board does not have a lit orange LED light. Probably due to the error preventing start-up?
- there is a red LED light on the power supply, which is not lit. Not sure if this is correct.
I have attached photos of the circuit board and have also uploaded a video to YouTube showing what happens when the machine powers on:
https://youtu.be/UgqgClSoDGQI'm at a loss as to what to try now.
Some questions / thoughts:
- does the red LED mean an issue with the motherboard/MPU or could it be something external to this elsewhere on the machine that is causing the issue?
- is it worthwhile getting replacements for the eproms (SG000369, VS011GX1, DSPL0002)? Are these likely to be causing the problem?
I think the options open to me are to get the motherboard and MPU tested (can anyone on here do this?) or to buy a replacement motherboard and MPU. I only want to do this though if I'm pretty confident this will fix the issue.
If anyone has any suggestions / ideas, please let me know.
Any question, please get back.
Thanks for your help with this!
-- Derek