So, my MET Pro almost caught on fire?
My right ramp flasher went out. Discussed on this forum and was thought likely a transistor. Took the board off and checked resistance across the associated transistor at Q27 on the J6 section of the driver board. Sure enough, all were same except that one. Nice. Emailed Stern, told them the issue, told them my plan to change it out, got the part number and got the transistor mailed to me from Marco.
Ok, so prior to changing it out, the game played fine, just no right ramp flasher...so, last night I changed the transistor out to the new TIP122 transistor without obvious technical issue. I was excited to see how it went. Plugged everything back in, seated everything in well, replaced the back glass and turned it on....yep, right flasher worked, but upon game boot up, it stayed on, along with all the sparky flashers. Wierd. I turned game off and turned on again. Same thing. While I was thinking just wtf, smoke started coming up from behind the pf by Sparky. Cool look but WTF!! Turned game off, unplugged. Checked under and behind pf, in backbox and around board, board off to look...nothing looked burnt and couldn't find out just what the hell happened.
By the way, I checked resistance across the q27 region after all of this, and not only is there strange numbers from there, but across multiple areas in the j6 Flasher section of the driver board. Man, I just don't know. Totally depressing.
Anyway, I have the I/O board out now and game unplugged. MET is out of commission for now. Damn. I querried Stern but no response yet (it was evening last night when it happened).
Any ideas??? Ugh!!!!.....