MonsterBash
Well-known member
Can anyone tell me what the 6 LEDs lights are supposed to do on a functioning boardset?
Thanks!
Thanks!
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i just restored a zoo keeper and qix, my advise is as follows..
replace every .156 crimp pin on the harness (biggest issue on both my games)
replace every ribbon cable
upgrade the 4116 ram
replace every socket on the 4116 ram
i had a known working zk boardset that was just repaired, it wouldn't work in my cab due to a couple of the pins making bad contact. as soon as i fixed all the pins she booted right up.
The LEDs are constantly flashing in different diagnostic patterns while the game is running.
on my qix i have zero lights on while functioning correctly..the codes are in the manual light off = 0 and 1 = light on
I also have new ribbon cable sets available.
Just for the CPU pcb:
Reflow header pin solder - Done al all 3 sets
Check the service switch. As they can become stuck on, leading to all your LEDs to be lit. -Checked and done
Replace most if not all socketed chips if questionable. (Not ram) - Done including RAM on one set
Ram, well they are 4116s.. Which run hot and fail. I've yet to mod any of my personal pcbs for better ram. But it's a good idea. - See above
Have the led chart stapled to the inside of your game for easy reference -got i ton the game
Make sure interlocks are working (all 3) -yup
Check voltage, replace original ps -Replace with a switcher (voltage OK at ICs)
Header pin connectors.. Replace as many as needed.. Easy test with meter -Gonna repin the cables this weekend
Install a NVRAM or watch batter with blocking diode -done on original set
Clean off acid damage -none..yaaay!
Replace (3) caps -didn't do this yet..good call!
Replace ribbon cables!! -on the way!
Bad ram can also be a bad socket.. Or it could be another ram in front of the one that's
reading bad via LEDs - checked and replaced as needed
Replace CPUs (2) -yup
Burn the patched (19) rom for the coin pcb.. Toss coin pcb -done
Think that's it.. Good luck!