Hi pinheads, I had a small problem today and wonder if you can help???

After finishing putting the playfield back together on the Shadow I cleaned all under playfield inserts, then I switched it on and problems started. The problem was not untill I'd worked under the playfield as far as I'm aware.

The machine asked me to check fuse 114 and 115, 114 had to be changed, only to blow again. After looking over the machine again, checking for bent over bulb holders, loose wires etc, a washer appeared and fell into main cab(I don't know where from).Now none of the ring lights would work and the start button and buy in button were not flashing right, nor was the O mongal light they were all extremly bright.

Going into individual bulb test, three times did 2 lights, light up together(I believe this shouldn't be), and in ordered row/lamp test it showed up that row/column 8 appeared to have the all these lamps, the four rings, the three over bright bulbs and a random arrow bulb.

I have checked the Q91 tp107 transistor against all its nieghbouring transtistors, and this one appears to give off a bad reading, I have ordered new transistors and have to wait now to see if it will be the fix.

Do you think I'm on the right track here or have you got any suggestions for me??????

Here's an update....

I changed Q91 transistor and now bulb brightness has returned to normal, and in single lamp test every thing is OK.

But the 4 ring lamps are still out, I don't know why yet, any ideas????

Also something else which didn't happen before is need of fixing, when the ball is put onto the mini playfield the kicker kicks continously, it shouldn't, this should only kick when the opto switch is triggered. In switch test the switch works fine and I tested all transistors on driver board and it all seems good.

Just spent another hour or so tinkering, mini playfield kicker is fine now, and the four ring lights are still out. Other than that it is playing fine at the mo.

However another question if I may....

On the driver board in the backbox can someone tell me what LED 2 (high/low line voltage sensor) should be doing in attract mode, the book says it is usually on.

On this game and in attract mode mine does the following, it goes on, then flashes in time with the attract mode and finally it stays on and flickers/fades and it looks weak, after this it cycles again. I wonder if the flickering part is trying to tell me something???

Final update.

donjagra you were spot on, there was something else behind the blown transistor, thanks.

Problem solved, the four ring lights were out because of a burnt/broken trace on a board under the playfield. The board in question was the " 5 SWITCH & DIODE P.C.B, C-13940 ".

I can only assume that the random washer that appeared in the cabinet when the playfield was lifted had fallen onto this board, then upon power up burnt the trace, caused the short, then blew the transistor Q91 and the fuse.

I felt so good after discovering, then repairing and finally seeing the 4 missing lights working again.