Hi,

Am restoring a FPII together with a friend. Game is coming out nicely.

However .

1 Game will not boot.
2 All G.I lamps work
3 Displays are dead
4 Sound board OK. All sounds check out and are playing out with the test button.

The digital error display seems to be partly broken.

As you can see we figured initially it could be either a 5 or a 9 displaying.

We have done this.

1, swapped the security chip to a new one
2, swapped the RAM chip to a new one.
3, We have good 12 v and good 5 v in.
4, However on certain meassure points on the board itself we have only 2.5v-
5, Games behaves same, still does not boot. Nothing but the sound board is responding.

We figured now perhaps one more segment on the digital display is broken which could lead to further error codes being possible.

We have not changed or have the possiblity to burn new ROMS.

Will faulty or shortened ROMS cause a voltage drop on the various V measure points on the board ?

What would be the next step here for us ? We've checked for cracked solder joints etc and reseoldered just to make sure.

Thanks in advance.

regards
Matt
241190737_574416833981943_6161332398101950070_n (3) (resized).jpg

Thanks Bud. Don't however have this setup.

Again. Will broken / shorted ROMs cause irregular voltages on the test points on the board ?

Thanks
Matt