Hi all, hopefully someone can help me, moving this here from another thread at suggestion of pinsiders.. Thanks Pin_Guy and PinballManiac40 for the heads up. I have found a lot of F104 and checking for shorts on solenoids. This is slightly different?
I recently had cause (I shouldn't have done this) to remove the IC on U13. I broke it on removal (obv), and have a replacement. That doesnt work either, so I have no sound at all currently, another a story. But....
...after carrying out this process, I turned the machine on and F104 and F105 immediately blew. Replaced, checked continuity at J107, didnt find any, (which I am assuming is a good thing in this case), as no solenoids are shorted? Restarted, blew again.
I have done a visual check, as far as I can tell there is nothing obvious touching brackets etc, but I wasn't anywhere near the playfield for the sound "fix", I reseated data cables and 2 plugs on the sound board only. As J107 shows no shorts, I feel like thats ok. So I need to keep looking.
If I pull J107, machine fires up, no fuses blow.
I am wondering why it blows both F104 and F105, seems strange to do both? Suggests something is wrong with both High and Low solenoid circuits at the same time.
I'm a newbie, this is my first pin, the learning curve is turning out to vertical I bloody love pinball now tho...
If anyone has any suggestions it would be brilliant.