Hello,

Picked up a Cyclone a week or so ago. Everything works well except the Spook House drop target opto board.

I tested:

Solenoid - Kicks Target up OK
Switch Matrix - Shorted Row and Column on opto board and it registered during test mode with Molex connector attached

I narrowed it down to the opto board. I tried 'seeing' with a digital camera, but I saw nothing inside the opto housing.

I then tried to measure DC volts, and measure nothing. I literally pulled the wires off the Molex connector, no volts. I checked all the wire harnesses from playfield, and back box and they are all tight.

I measured a clean 12V at the PSU board. I looked at my schematics and it appears the 12V "logic power" goes into the MPU, then I'm lost

The wires on the opto board Molex connector are WHT/YEL (+12VDC) and BLK/YEL (GND)

I then bench-tested the opto board. The IR LED indeed lights up, but the switch contacts do not respond to me blocking the receiver LED? I am not sure, but that little transistor must be the switch to open and close the contacts going to the MPU switch matrix...

I am looking for:

1. The 12V line, where to trace from PSU to Opto
2. Any information on the opto board for bench testing (contact closure or voltage at Row/Col pins)

Thanks Everyone!

Tim

Hi Ken,

Yes, I know that pin/wire, but where it goes from there, I'm digging around.

Thanks,

Tim

So, out of curiosity, the original manual, (like one from a dealer like Marco) contains the "missing" schematics vs the IPDB 66 page PDF version? Or is there a special service manual that I am missing?

I have the original manual for my High Speed, and the only difference (in comparison to the 66 page Cyclone I downloaded) is my HS schematics fold out and of course, are easier to follow than separate pages.

It must simply be a broken wire somewhere.

Thanks,

Tim

I am going to learn to redo a molex connector as well. I'm going to start my research. I suspect the problem originates in a connector somewhere.

I solved the problem.

I had too much speaker hum as well, figures, the backbox speakers were plugged into the playfield 12V going to spook house opto board... swapped exact 2-pin connectors that held exact colored wires (BLK/YEL) and problem solved...

sheesh...