amiga 1000 boot problem

[David Wright]

I just purchased an Amiga 1000 which doesn't have a keyboard yet.

I made a kickstart 1.3 disk to start with and inserted at the graphic prompt.
It begins to read and access data on disk, runs fine for about 10 seconds at most, then just quits, monitor goes dark or stays dark while booting. Then monitor loses video signal.

Any ideas?

[David Wright]

Monitor works fine on others and does display insert kickstart screen on this one. Only drops signal after 5 seconds of loading disk.

I am also going to take a look at floppy drive.

[David Wright]

I would check power supply on that also. Insufficient power output after warmup?

I wrote a new kickstart disk again, verified disk.

Power supply? Maybe, not sure.

Tried again with new kickstart. It is a good 10 seconds of solid access and reading, then just when it stops and seems that the insert Workbench disk prompt should appear, signal to monitor stops and blank.

As crappy as the case was taken care of on this, the motherboard and capacitors look brand new. Even the shielding was spotless. I tried reseating and chips etc, but still nothing.

[David Wright]

It was the NEC lcd after all, which did show boot screen but no further. Also is good with other Amigas.

Hooked up to my 1084 which i never use and all good.

[David Wright]

Seems to me to be a sync issue with monitor or rgb to vga convertor.
I have the 1000 still on the 1084 with no issues.