Ok, but it seems like it's just that "open" resistor that is the problemo. After we figured that out, we spent the next 3 hours playing Williams Pinball on the Wii......thanks again for getting that for me Medvet, its a real blast!
Ok, but it seems like it's just that "open" resistor that is the problemo. After we figured that out, we spent the next 3 hours playing Williams Pinball on the Wii......thanks again for getting that for me Medvet, its a real blast!
Sorry for demolishing all your high scores
We can't fix Playboy without that resistor
Have
Want
-The Getaway: High Speed II!! -Spider-Man -F-14 Tomcat -Guns N' Roses -Lord of the Rings -Twilight Zone
-Medieval Madness! -Indiana Jones (Williams) -Star Trek: The Next Generation -Champion Pub -Terminator 3 -Congo -Johnny Mnemonic -Tales of the Arabian Nights
-The Getaway: High Speed II!! -Spider-Man -F-14 Tomcat -Guns N' Roses -Lord of the Rings -Twilight Zone
-Medieval Madness! -Indiana Jones (Williams) -Star Trek: The Next Generation -Champion Pub -Terminator 3 -Congo -Johnny Mnemonic -Tales of the Arabian Nights
Jonny_eh here at hippochrome's place. Here's the story so far: Mr Mikeman came by last night and replaced the R8 and R9 resistors. This fixed the missing +100V, but now the -100V is missing for some reason. So Mike replaced the TR4 transistor, which when tested showed a closed circuit between all the leads.He didn't have the exact same transistor for replacement, but had an alternate suggested by Clay, the MJE15031 (on the transistor, it says MJE15031G, is the G significant?). But even with the replaced transistor, there was no voltage at D10, like there was at D9. He didn't have the right diode for replacement, so left for the night.
Tonight, I replaced the D10 diode, and now detected ~-105V at D10 (IIRC), the same as D9 (but negative). At R13, I detected -125V (same as R12, but negative). Unfortunately, the output voltage wasn't -100V as would be expected, it was -89V.
I figured that since we had the right voltages entering the transistor, and the wrong one coming out, it must mean the transistor is broken/wrong. But while testing the voltage at the transistor pins, I accidentally shorted it (with a sparc) and now I no longer get a voltage at either D10 nor any output voltage, just like how Mike left it last night. My guess is that I broke the diode when I did that short.
Where do I go next? Replace the transistor and diode? Give up and get the LEDs? Get a Rottendog board?
Where do I go next? Replace the transistor and diode? Give up and get the LEDs? Get a Rottendog board?
...Sell it to me.
It is now in my basement! Started tinkering with it a bit. I had to remove the head of of it to get it through the door, and while I did that, I noticed 6 connectors with burned out pins and connector housings, and at least 5 other connectors with loose wires in the connectors. Gotta love the more recent pins that use goddamn IDC connectors. Bloody crap. Well, I changed over 12 connectors with Molex trifurcon connectors... long process, but worth it. I haven't even plugged it in yet, but I can see a couple of transistors fried... no biggie. But before working on the boards, I will revise the entire wiring. If a few connectors came loose, others may later. I want to bullet-proof this pin. Really worth it... playfield is in very good shape. Hopefully more news soon...
Huh? Hippochrome got Sparky to do a shop job? Sweet! I can't wait to play it! "Oooh, playboy"
Have
Want
-The Getaway: High Speed II!! -Spider-Man -F-14 Tomcat -Guns N' Roses -Lord of the Rings -Twilight Zone
-Medieval Madness! -Indiana Jones (Williams) -Star Trek: The Next Generation -Champion Pub -Terminator 3 -Congo -Johnny Mnemonic -Tales of the Arabian Nights
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