Right slingshot coil on No Fear was inoperative when I acquired the machine. Replaced coil (.003 ohms), replaced TIP102 and 2 resistors (burnt).
Still doesn't work. Coil fires when transistor tab is grounded. Coil does not fire in coil test.
Stumped.

No manual, on order.

Do you have the pre-driver number for Q56 on No Fear?
Also, I just powered it up and now it won't boot, and the DMD says, chech fuses F115 & F116 (removed and checked: good), J112: good and Opto 12 volt low power. Arrrr.

Thanks Lloyd, and the rest of you guys.
I just discovered that the LED on the Opto board is out, meaning I have no 12 volts to the optos. Going to keep checking tomorrow.
Right now I'm hitting the sack.

Here's the latest: Original problem was right slingshot inoperative. Cannot check that now because I am getting the "Check fuse F114 and F115" message, and the outhole kicker continues to fire over and over. The game will not go into Test Mode.

On the Power Driver board, I am getting 12vdc on TP1 (correct), no volts on TP3, and 16vdc on TP 8 (should be 18, maybe correct).

I have since reset all ribbon cables repeatedly, replaced Q2 7812 voltage regulator and capacitor C2. All solder joints tested for continuity. No change.

I swapped the 16-opto board with my SS. No change.

The next steps according to Pinwiki are to replace BR-1 and capacitors C6 and C7. Upon inspecting the board, I see that all four have been replaced. The bridges test good and the work looks OK. Diodes D1 and D2 test good. Also testing good was BR-5. And now I'm at the end of the checklist.

What did I miss? Any other questions or ideas? I'm trying to get this machine ready for Pinbrew, but I want it working and solid.

Again, thanks for your help guys,

Alan

Thanks WH20_Buzz.
I pulled J114, still only millivolts at TP3. Will replace C6 and C7 and report. Re-re-checking C2 & Q2 area.

Well, I have replaced c6 and c7, I have removed this board and re-installed it five times, R&R'd br1, re-re-re-checked c2 and Q2, and done dozens of continuity checks.
I just noticed by accident that I have continuity between the negative leg and the DC positive leg on all bridges. Is that correct, or do I have one helluva short in this thing?