Sorcerer not booting

I have dead Sorcerer that I am trying to get running for a family member. Game lights up all the GI come on but no Displays. Game doesn’t boot. I do not see any issues with corrosion on the MPU. And it is reading “0” as it is okay when powered on. I threw in a new Power Supply Board I had available just to see if it might be an issue with consistent power. Still no change. I reseated all connections and removed and reseated the Roms. I can see a hint of light in one of the displays.. and now I can get a game sound when I hold the coin door button. Speaker is humming. I replaced the batteries and plan to move them off the board. Any ideas on this? Bad Roms? I am fairly novice but not helpless.

75B5EF73-B0EC-4B0D-AF47-EB624DEEABB2 (resized).jpeg

78B87F36-387C-4ABF-AD4A-91D9B6BB9C71 (resized).jpeg

D7BC2B82-420D-4404-8351-97B11D43336C (resized).jpeg

#2 1 year ago

BTF

PinballManiac40

Pinside+ Frequent

14y 234K 17,614 104

2 balls in the trough? Is it in attract mode?

#3 1 year ago

DAN

Hazzy121

Pinside member

Yes. Two Balls in the trough. But I can not tell if I am in attract mode since I don’t have displays. I also find it hard to believe all of the displays would be out. That’s why I switched out the power board..

#4 1 year ago

GTX

gdonovan

Pinside member

OP
Quoted from Hazzy121:
Yes. Two Balls in the trough. But I can not tell if I am in attract mode since I don’t have displays. I also find it hard to believe all of the displays would be out. That’s why I switched out the power board..

My Space Shuttle they were all out, someone hooked up something wrong or something catastrophically failed on the power supply and smoked every single glass.

If you are in attract mode you should have light patterns on the playfield. It doesn't sound like its booting up.

#5 1 year ago

DAN

Hazzy121

Pinside member

It isn’t in attract mode. Stagnant lights.

#6 1 year ago

GTX

gdonovan

Pinside member

OP
Quoted from Hazzy121:
It isn’t in attract mode. Stagnant lights.

Define please.

You have GI but no insert lamps or are the insert lamps locked on?

#7 1 year ago

DAN

Hazzy121

Pinside member

I have no inserts. Only above playfield lights. Slingshot light. Pop Bumper lights.

#8 1 year ago

GTX

gdonovan

Pinside member

OP
Quoted from Hazzy121:
I have no inserts. Only above playfield lights. Slingshot light. Pop Bumper lights.

MPU isn't booting up, need to start there to find out why.

I only mention this as you are giving conflicting information in first post.

#9 1 year ago

DAN

Hazzy121

Pinside member

That’s where I am looking for some guidance. If I have a MPU reading “0” and the game won’t boot. What would be the best way to diagnose from there? Roms? Looking for suggestions.

#10 1 year ago

GTX

gdonovan

Pinside member

OP
Quoted from Hazzy121:
That’s where I am looking for some guidance. If I have a MPU reading “0” and the game won’t boot. What would be the best way to diagnose from there? Roms? Looking for suggestions.

Have access to a eprom burner?

https://pincoder.ca/

#11 1 year ago

DAN

Hazzy121

Pinside member

Right on! I will try that. Thanks.

#12 1 year ago

DAV

zombywoof

Pinside+ Frequent

10y 85,300 1,477

Check for at least 3.5 volts DC at pin 24 on the U18 RAM module.

#13 1 year ago

RIK

Rikoshay

Pinside member

9y 46,900 1,495 1

that battery holder looks suspect, look at the left hand side.

as above, check battery voltage, also check fuses.

#14 1 year ago

DAN

Hazzy121

Pinside member