info on model E 2407-2

[Peter321]

hello, Peter here from Holland,

I have a bally Big Winner, model E 2407-2 and looking for technical info like schematics, etc.. Power board is a AS-2982-5, MPU/IO board is AS-2978-22 and hopper board is AS-2981-6. (no separate I/O board)
problem: all lights and display are on, but machine tilts when coin entered. when start-up display shows all zero, with 2 dots around third zero
I had feeling that problem was connected with door open/close; since yesterday however display is not working anymore and test/reset are also dead.
all help is very much appeciated,
kind regards,Peter

[Amechanic]

Check your power supple voltage out puts. Also check the condition of the power supply’s plug. Check for any burnt crimp connects.

[Peter321]

I have checked powersupply plug, looking good, no burning; fuses are ok; voltage tp1 to tp3 =5.0, tp2 to tp3 = 8.3, tp4 to tp3 = 13.3 ; hopperboard and mpo board not connected; MPO and hopperboard are visual ok, no burns and all connector pins are also looking good.
battery on mpo board gives 2.6 V, which should be according label 3.6 ( is mempac 3.6V, 100mA); if I understand correctly, battery is not necessary for playing, but I will order new one
unfortunatly in copy of my manual all electric scheme's are not readable, so if somebody can help me out, would be great
kind regard,Peter



Some additional info
I found an mofication, (which was also done in another machine in the same way): the wire code 52, white with blue marks, from connector J3 was split and two wires were attached, next to this from the hopper connector  4 extra wires were attached on pin 1,2,13 and 14; thes six extra wires were bundled towards left side of the machine and were cut of there without any sign where the were going or what function was.