has anyone else had this issue with their multi kit install? having sprite problem with every game. kits installed in an x-multiply board. dipswitches are set correctly.
@mncmt, can you please check the following:
- no bent or broken pin on the kit
- jumpers are set correctly
- ROM 4 and 5 contain valid data and aren't swapped
And also that the 27c160 hasnt been swapped with a 27c322 and that the interconnect cable is plugged in correctly.
no bent or broken pins. jumpers are set correctly. sorry, i meant to write jumpers, not dipswitches, in the first post.
i had a friend program the eproms for me so i will have to wait to verify those ROMs. i did try swapping them and had similar issues.
edit: interchange cable is plugged in correctly and the 27c160 27c322 are in the correct places. will get back to you about the data on the ROMs. thanks for the help so far.
The post was edited 1 time, last by mncmt ().
Ok..so im getting a weird one.
Most games on the multi, seem to work fine.
A few however, will get to the Ram OK, Rom OK, an won't go further.
Air Duel, Hammerin Harry,Ninja Spirit, are the current perpetrators.
Any Ideas....checked pins, checked dips,checked eeproms, and voltage is 5.017 at the input edge.
To me it's a dipswitches issue and although you already checked them there might be a remanent contact problem or a faulty logic chip.
When the games sit on the ROM OK/RAM OK screen can you try pressing both 1P and 2P start button simultaneously?
I will try that tonight, and see what happens.
Yep...my bad..jumpers, wiring, roms, positioning, were all checked...dips weren't.
Sorted now, and many thanks to Mitsurugi and Apocalypse!!!