Dead 2000

[magnetic]

Okay,the RAM chips came in.

Placed them very carefully and snugly over the originals and fired it up.  Nothing changed.  Also, none of the chips seem any warmer or cooler.  All about the same temp.

Tried 4 different cpu's, all known good, and got the same result.

Tried the Caps Lock mentioned above and got to 6 or 7 and it stopped responding.



Curtis

Curtis if caps lock doesnt make it to 10 times its CPU problem. Probably the socket. Clean the socket with iso and a toobrush see what happens. Does the power LED stay dim or get bright?

[magnetic]

def take out the indivision and try it as the other poster said too. also on boot up does the Cap lock key flash?

[JuMa]

It

Check your CPU socket for green or if you have been using a vampire in it you may have bent them out to much. I've had to replace several 68k sockets for vampire owners lately.

I replaced cpu socket. At power on it goes to insert floppy screen but after  60 seconds or so it freezes. If reset then screen stays black or goes to white. If I turn power off and wait little longer like 10 minutes it boots to floppy screen and freezes again after a while.

[Acill]

I replaced cpu socket. At power on it goes to insert floppy screen but after  60 seconds or so it freezes. If reset then screen stays black or goes to white. If I turn power off and wait little longer like 10 minutes it boots to floppy screen and freezes again after a while.

Do you have another kick-start ROM you can try?

[curtis]

IF I had a composite crt, I would be happy to do that.  Unfortunately, I do not.

Take out the indivision and connect the composite b&w to a TV.

[JuMa]

Do you have another kick-start ROM you can try?

Tried 3.1 rom no change. Just noticed that it actually doesn't completely freeze but disk animation slows down to crawl. Also drive click slows to about once per 30sec.

[madgrizzle]

IF I had a composite crt, I would be happy to do that.  Unfortunately, I do not.

Understood.. I had to drag my Amiga out and connect it to our living room TV.. wife wasn't thrilled, but she got over it.

[JuMa]

I'm starting to suspect bad contact or trace somewhere. If I lift the board a bit or even tap disk drive instant restart/freeze. If trying to load a game it loads few secs but then stops.

[Oldsmobile_Mike]

I don't think this is your problem, but it couldn't hurt to try -- another power supply?

[mechy]

I'm starting to suspect bad contact or trace somewhere. If I lift the board a bit or even tap disk drive instant restart/freeze. If trying to load a game it loads few secs but then stops.

Remove every chip, clean if necessary and inspect all pins and sockets. it smacks of bad contacts, pay attention especially to Agnus(cracked sockets are common).
The cpu socket also.
I've had a a3000t that had a bad socket that was broken underneath between board and socket and you couldn't see it at all. really fun to find it, i spent a hour with it running prodding with a plastic stick on sockets and chips till i made it crash. It was a factory defective socket that just happened to act up when i got the machine.

Bad psu voltages on the +5 rail can also make a machine crash and or boot random.

[mechy]

IF I had a composite crt, I would be happy to do that.  Unfortunately, I do not.

a 1084 thru rgb would be great but i guess no 1084 either?

These little 7" lcds are great for test monitor, they take pal/ntsc COMPOSITE in and do 4:3 usually.

http://www.ebay.com/itm/7-LCD-Car-Rear-View-Monitor-Wireless-Parking-Night-Vision-Backup-Camera-Kit-/272788663880?hash=item3f8378ae48:g:rIAAAOSwighZgpbJ

u can probably find a better priced one, its just the link i grabbed first.

heres another:
http://www.ebay.com/itm/7-TFT-LCD-Digital-RGB-HD-Screen-Car-Monitor-For-Rear-View-Camera-DVD-GPS-VCD/271849458345?_trkparms=aid%3D555014%26algo%3DPL.DEFAULT%26ao%3D1%26asc%3D41375%26meid%3D8717290109ab438fba9c941dd9a01b8f%26pid%3D100507%26rk%3D1%26rkt%3D1%26&_trksid=p2045573.c100507.m3226

good luck on the 2000,if all fails change the oscillator.

[Acill]

I am also leaning towards trying to remove every chip and clean with a toothbrush and 99% IPA. If you have a good disk washer after the chips are removed you can use it to run the board through a cycle as long as you let it sit on its side at an angle and dry out ofter for a few days.

[madgrizzle]

I now use one of these:

https://www.amazon.com/gp/product/B00M4JY722/ref=oh_aui_detailpage_o07_s00?ie=UTF8&psc=1

to convert the B&W composite to something I can show on my monitor (mine has HDMI which is connected to the VA2000/CX and VGA which is connected to the device above).

I'm not sure its worth going out to spend the money on it as it's just a shot in the dark that you might get something useful out of removing the Indivision.  I got it because I was tired of dragging the Amiga back and forth between my office and the living room.
 I assume that you've tested it with it removed and it still does the same flashing thing.. don't need a monitor hooked up for that.

[madgrizzle]

If you have a good disk washer after the chips are removed you can use it to run the board through a cycle as long as you let it sit on its side at an angle and dry out ofter for a few days.

Would you run it without any detergent?

[Acill]

Would you run it without any detergent?

Right, just water. If your water is hard I would be sure to use some IPA right after to get as much water out before drying. It wont hurt it, but makes cleanup harder if it puts a lot of mineral deposits on it.

[curtis]

Well, I tried to utilize a machined pin socket and plug that into the cpu socket, with the cpu, and it didn't change a thing.  Really starting to get exasperated with this thing!