the1anton
2009-10-11 11:54:47 UTC
My JD machine recently required its CPU to be repaired as it had too
many volts sent through it. The issues before repair were that none of
the buttons functioned. On receiving on the CPU back, not only had I
got assurances that the CPU now worked, but the L4 rom had been
replaced with an L7. Now, all the buttons work superbly, and the only
error on testing is the upper left flipper EOS switch, which I ignore
because it is not a problem and the connection for that switch on the
board is poor anyway.
The problem now is that the game keeps entering Air Raid mode
spontaneously and at random without even going up the Air Raid ramp,
and therefore the left shooter is not even used. It will also enter
this mode when going up the Stakeout and Sniper Tower ramps, but not
always. Hitting the JUDGE drop targets can do it too, but this might
be coincidence. Not only that, but it will sometimes enter the mode
before the first ball is launched and also restart the mode before the
current Air Raid is even over (sometimes a few seconds in, as the Air
Raid claxon effect plays like a skipping record, a sign of it
restarting). This of course means I can't enjoy the rest of the game
and have to hit the drop targets using the flippers before proceeding,
but even completing the mode can cause it just to start over again!
I'm not sure if it's a rom issue, an opto issue, or something
different. This problem was not apparent before the CPU was sent for
repairs and the L4 rom was in place. I'd like to think the CPU is
repaired, as there are now no malfunctioning buttons and testing
confirms this also. One final note is that during Supergame multiball
is the only time I don't have Air Raid issues, maybe because Air Raid
is not available during Supergame multiball (guessing).
Any advice would be appreciated!
many volts sent through it. The issues before repair were that none of
the buttons functioned. On receiving on the CPU back, not only had I
got assurances that the CPU now worked, but the L4 rom had been
replaced with an L7. Now, all the buttons work superbly, and the only
error on testing is the upper left flipper EOS switch, which I ignore
because it is not a problem and the connection for that switch on the
board is poor anyway.
The problem now is that the game keeps entering Air Raid mode
spontaneously and at random without even going up the Air Raid ramp,
and therefore the left shooter is not even used. It will also enter
this mode when going up the Stakeout and Sniper Tower ramps, but not
always. Hitting the JUDGE drop targets can do it too, but this might
be coincidence. Not only that, but it will sometimes enter the mode
before the first ball is launched and also restart the mode before the
current Air Raid is even over (sometimes a few seconds in, as the Air
Raid claxon effect plays like a skipping record, a sign of it
restarting). This of course means I can't enjoy the rest of the game
and have to hit the drop targets using the flippers before proceeding,
but even completing the mode can cause it just to start over again!
I'm not sure if it's a rom issue, an opto issue, or something
different. This problem was not apparent before the CPU was sent for
repairs and the L4 rom was in place. I'd like to think the CPU is
repaired, as there are now no malfunctioning buttons and testing
confirms this also. One final note is that during Supergame multiball
is the only time I don't have Air Raid issues, maybe because Air Raid
is not available during Supergame multiball (guessing).
Any advice would be appreciated!