If you are looking to help me please review my previous post found here:

https://pinside.com/pinball/forum/topic/bally-night-rider-early-ss-wont-boot#post-3716857

So I've installed a new Alltek MPU... followed the manual, checked the voltages and the board works great.

proper led's and all. The MPU seems to be fully operational. I set the switches like they were on the stock MPU

I set the Alltek for Night Rider which is all switches to the left set to -0- and the last one on the right to 1.

since it didn't boot I did turn all the switches back to -0- and tried to boot but nothing. will I have to reprogram

the board? Because I did play with all switches and attempted to reboot?

I get no sound on boot and no playable games.

When I press the red button on the door It goes into check mode... lights flash counters go up but then when its suppose

to run all the tests on the relays I get nothing...

where do I begin please...

I'm an SS novice with a DVM...

As always thanx in advance

-=Fred=-

8 and then a low glow green

no red

and a bright green

I can drop them and see if they reset but I don't think they will because during the self test none of the relays fire

yes the displays are lighting and flashing but I do not know what info they are flashing

checked 4 fuses under the play field and 2 in the bottom all fuses checked fine is there any more I should check?

no sound on boot

display shows 00 then 04 High score to date is NOT blinking

there was 4 under the playfield and I check all of them all good

i'LL CHECK IT TONITE

thanx

Checked all fuses again... all are fine

Here is what i am noticing... I did a complete reset on the alltek ...

game is looking like it is booting normally... no sound and no solenoids functioning.

hit the credit but and it advances all the way to 4 players.... just no play at all...

I'm going to go search as to why none of the solenoids are functioning.

any help would be greatly appreciated here.

as always thanx in advance

-=Fred=-

any chance this could be the relay on the solenoid board?

how can I test it?

Yes I am removing the fuses to test them...

power supply j1 j3 disconnected

tp1 2.871
tp2 190.4
tp3 14.00
tp4 4.1mv
tp5 45.7

connected

tp1 2.73
tp2 244.0
tp3 14.65
tp4 47 mv
tp5 45.1

GUESS WHAT IT JUST BOOTED UP !!!!!!!!!!!!!!!!!!!!!!!

MUST HAVE BEEN A BAD GROUND

I TWEEKED THE GROUND WIRE WHILE CHECKING VOLTAGES

THANX FOR EVERYONES ASSISTANCE