baritonomarc
Member
Paperboy video problems and 6502 communication failure
Hi all,
i am trying to have my paperboy cabinet running, but the PCB has (various) problems.
Consider that i burned new ROMs using 27128 and 27256 EPROMs paying attention to the due doubling of the 16K byte MAME images when dealing with 27256.
First of all, i have graphic issues: in game mode the monitor is white, and the game doesn't start. When the self test is performed i have garbage in all the tests, but the alphanumerics are ok.
Second, during the test, the first problem reported is a "6502 communication error" ... the processor should be ok because i have a spare one and i had the same problem... what could it be? Bad soldering?
In addition, i have the suspect that the slapstic could be bad... how to be sure of it? I have no spare slaptics for paperboy...
thanks in advance, very appreciated
Hi all,
i am trying to have my paperboy cabinet running, but the PCB has (various) problems.
Consider that i burned new ROMs using 27128 and 27256 EPROMs paying attention to the due doubling of the 16K byte MAME images when dealing with 27256.
First of all, i have graphic issues: in game mode the monitor is white, and the game doesn't start. When the self test is performed i have garbage in all the tests, but the alphanumerics are ok.
Second, during the test, the first problem reported is a "6502 communication error" ... the processor should be ok because i have a spare one and i had the same problem... what could it be? Bad soldering?
In addition, i have the suspect that the slapstic could be bad... how to be sure of it? I have no spare slaptics for paperboy...
thanks in advance, very appreciated