(Topic ID: 119744)
Linked Games
Junk Yard
Williams, 1996
Topic Gallery
North Hatley, QC
Hopkins, MN
No opto in the gsme is responding when I trigger them in switch edges.
All fuses are ok by the multimeter.
What does that mean?
Fuses were in their places. I didn't pull them out. They were all going me near 0 résistance.
How do I measure The voltage on the test point? I never did it 
Where it is? What results should I normally read?
The splitter is given by colorDMD.com in case there's already something in J138. It wasn't my case. That's why It's unplugged.
All red leds are solid red.
Is it a good thing?
With The game shutdown and without pulling out The fuses my meter can give me 0 résistance in a blown fuse case?
In F101?
I tried it and nothing special happened. All leds light solid red.
The game still éjects all the balls 3-4 Times at start up and when Start is
Pushed
J138, J140 and J141 have the 12Volt for the opto-board.
Pin1 key
Pin2 12Volt
Pin3 GND
pin5 5Volt
It should measure little more than 12 Vdc between pin 2 and 3.
From there a gray-yellow and black wire are going to the optoboard.
I have The Dmd on 138; it works great
I have a powertap on 140 for my topper(2molex); works great.
I have a connector on 141 with gray-yellow/black in it. It has power because I can power The Dmd with it if I switch.
My opto board still not powered
Put the MultiMeter in Vdc as in picture. Probes are in correct place.
DMM Vdc.jpg
The picture in post #18 is the 16-opto-board under playfield and is a kind of a interface between opto's and the switch-matrix.
I'm sure you have 12V power on the powerdriverboard but you can measure TP103 to practice.
Machine ON
Put red probe on TP103
Put black probe on TP 107
This should give approx. 12Volt dc in display of MultiMeter.
TP.jpg
Same for the opto-board under playfield, red probe on the gray-wire connection, black on the black-wire
Holy s$$t Zaza
You're so nice! You photoshopped my meter???
Wow
Watch this; I followed you steps to measure my PDB voltage. I got 12.49
I left The playfield for next steps and....my god! Opto board is Alive!!!!
Everything' s work!!!!!
Please explain how putting probes on PDB only dud The job!!!
You're on me speed dial zaza. Xx
Quoted from Cheese_WizardPQ:You photoshopped my meter?
and your powerdriverboard, piece of cake
I think you pushed the wire in one of the connectors with the probe while measuring.
Glad I could help.
Pffff pushed a wire with The probe...do I look like an idiot......meh....
Ok.
Honestly, It can't be that
However, who''s playing junk Yard right now with a cold beer????....The probe guy
most likely there is/was a loose wire in a connector. If it occurs again, press the wires into the connector. Best with machine OFF.
Quoted from Cheese_WizardPQ:who''s playing Junk Yard right now with a cold beer????....The probe guy
Cheers, I have a small drink as well before sleep, 2am already here.
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