recently ı purchased a3000, i try to boot it but not succeed,
need close shot from a working main board for jumper settings
my configuration is
board version is 7
kickstart 3.1
no turbo card
cpu is 16mhz 68030
where should I install eprom 3.1 roms, upper bank or down bank
what will be jumper settings for eproms
some things to check. verify +5 and +12 voltages on the psu are good.
Some revision motherboards will not boot without the scsi bus being terminated right.
Some 3000's had term power resistors backward and terminators will not get power. The diode is near the scsi port iirc. should be something over +4v on the external scsi port(pin25 - please verify this pin is right before prodding around!).
Bad chip ram will cause this no boot condition.
remove all fast ram to eliminate a possible problem(the 3000 will boot with only chip ram).
A bent leg on fastram not making contact or intermittent can cause this.
If it has a rom tower, verify its installed right and there are no broken pins.
the 3000 will boot fine with no battery.
the PAL chips sometimes fail.
Anthony has some excellent info on troubleshooting and schematics here:
http://amiga.serveftp.net/Good luck!
