A2000 non-booting prob...

keropi · 10 May 2007, 09:22

weeeellllllllll

I fired up today the A2000T I received, only to find out it does not boot or do anything...
I stripped it only down to the 2630 cpu card and 1 floppy.... it powers on, the monitor picks a signal from the Macrosystem De-Interlace card, but it stays black... and the a2000 does not try to read from the floppy, where a wb3.1 disk is... (the A2000 has 3.1 rom)
plus, I press several times the CAPS-Lock key, and after a while it stucks... that is not a good sign...
there was battery leakage, but it did not affect much around the area, it is cleaned now, replaced and it looks OK, there is no acid in tracks etc...
any ideas what to try next? the trip was a bumpy one, some cards inside where loose when I got it....

thanks!

musashi5150 · 10 May 2007, 09:25

Pull out the 030 card and just try the 68000 - and can you plug it into a TV and take out the flickerfixer too ? I'm sure you already have, but make sure all socketed chips are fitting nicely in the sockets.

Always best to try and strip it to the max

keropi · 10 May 2007, 09:31

yeah, I tried removing the 030 card, and the caps lock thingie lasted even less...
u think I should remove the ff too eh? let's see...

musashi5150 · 10 May 2007, 10:06

It probably won't make a difference, but when I have a problem I try to remove everything and then get it working. Then put things back 1 by 1...

keropi · 10 May 2007, 10:12

bah, it must be dead.
I only *once* got some floppy access and then a green screen... after that nothing...

Bamiga2002 · 10 May 2007, 10:36

Too bad to hear another miggy going down.

Those military-spec A2000's are a dying breed i suppose

, as are other Amigas too.

keropi · 10 May 2007, 11:10

I removed all chips from the mobo and give it a good clean... I also noticed one pin on the lower CIA was bent, and thus not in it's socket... I hope when I re-assemble it it will work...

here it is, the a2000 chips!

alexh · 10 May 2007, 11:43

Many A2000 motherboards had "hot fixes" to the motherboard to fix PCB design errors. Look around for any such "hot fixes" as they are often a source of problems, dry joints etc.

BTW: What is an A2000T?

keropi · 10 May 2007, 11:55

hot fixes??? dunno, it was supposed to work with that config... also it is a rev6.2 mobo, so it should be OK...
by A2000T I mean a towered A2000... like when u say u have a 1200T ...

alexh · 10 May 2007, 12:03

"hot fixes" = Single wires going from pins on chips to fix layout mistakes on PCB.

I asked about the A2000T, not because I did not know what the T stood for, but that I didnt know there was ever an A2000 tower kit. Who made it for example?

coze · 10 May 2007, 12:20

I have a dead 2000 mobo too with the same symptoms. I changed the 68000 socket cause some pins were corroded with acid but still no go. I'll check some more today.

keropi do you have something like this ? it must be HUGE

keropi · 10 May 2007, 12:33

dunno who made it, it looks like this:

Comp. Z Big Tower but it is made for A2000... it is actually a nice tower ...
I still have not put it back to see if the CIA pin was to blame...

musashi5150 · 10 May 2007, 12:41

Make it live keropi.... make it LIIIIIIIIVE!!!

keropi · 10 May 2007, 12:47

I'm trying , I'm trying!

keropi · 10 May 2007, 13:53

bah, re-sitted everything OK, still nothing... dead... I have 2 new cia's here, u think I should try them???

Chain · 10 May 2007, 14:00

or better try another set of ALL chips, ie from 100% working A500

keropi · 10 May 2007, 14:11

I don't have other chips, only the gary, 3 cias, and 2 paulas....

alexh · 10 May 2007, 14:50

Try a different kickstart ROM.

Any chance you can send me some close ups of the back of the tower for BBoAH?

keropi · 10 May 2007, 16:55

a different KS.... nope, I don't have one, only the 40.63 that it came with...
sure I can send pics, I must borrow a camera though... or use the 1.3MP my N6680 has....

so any other ideas? is there any way to find out what is dead??? I don't know If I am willing to repair this board, or if it worths the money spent....

alexh · 10 May 2007, 17:17

Check the PSU power supply under load with a meter?

If you dont have an A500/600 you're a bit screwed when it comes to testing stuff.

Not got a mate with an A500?

10 May 2007, 09:22	#1
keropi . Join Date: Oct 2004 Location: Ioannina/Greece Posts: 5,040	A2000 non-booting prob... weeeellllllllll I fired up today the A2000T I received, only to find out it does not boot or do anything... I stripped it only down to the 2630 cpu card and 1 floppy.... it powers on, the monitor picks a signal from the Macrosystem De-Interlace card, but it stays black... and the a2000 does not try to read from the floppy, where a wb3.1 disk is... (the A2000 has 3.1 rom) plus, I press several times the CAPS-Lock key, and after a while it stucks... that is not a good sign... there was battery leakage, but it did not affect much around the area, it is cleaned now, replaced and it looks OK, there is no acid in tracks etc... any ideas what to try next? the trip was a bumpy one, some cards inside where loose when I got it.... thanks!

10 May 2007, 11:10	#7
keropi . Join Date: Oct 2004 Location: Ioannina/Greece Posts: 5,040	I removed all chips from the mobo and give it a good clean... I also noticed one pin on the lower CIA was bent, and thus not in it's socket... I hope when I re-assemble it it will work... here it is, the a2000 chips! Last edited by keropi; 10 May 2007 at 11:21.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
time clock prob a2000	source	Hardware mods	11	07 August 2011 13:16
Really dead A2000 - Video scrolls after booting.	dancasper	support.Hardware	13	22 February 2011 17:43
A2000 not booting	predator666	support.Hardware	5	10 March 2005 19:44
Problem Booting A2000	Peanutuk	support.Hardware	22	14 October 2004 15:54

10 May 2007, 09:25	#2
musashi5150 move.w #$4489,$dff07e Join Date: Sep 2005 Location: Norfolk, UK Age: 42 Posts: 2,351	Pull out the 030 card and just try the 68000 - and can you plug it into a TV and take out the flickerfixer too ? I'm sure you already have, but make sure all socketed chips are fitting nicely in the sockets. Always best to try and strip it to the max

10 May 2007, 09:31	#3
keropi . Join Date: Oct 2004 Location: Ioannina/Greece Posts: 5,040	yeah, I tried removing the 030 card, and the caps lock thingie lasted even less... u think I should remove the ff too eh? let's see...

10 May 2007, 10:06	#4
musashi5150 move.w #$4489,$dff07e Join Date: Sep 2005 Location: Norfolk, UK Age: 42 Posts: 2,351	It probably won't make a difference, but when I have a problem I try to remove everything and then get it working. Then put things back 1 by 1...

10 May 2007, 10:12	#5
keropi . Join Date: Oct 2004 Location: Ioannina/Greece Posts: 5,040	bah, it must be dead. I only once got some floppy access and then a green screen... after that nothing...

10 May 2007, 10:36	#6
Bamiga2002 BlizzardPPC'less Join Date: May 2004 Location: Finland Age: 46 Posts: 3,210	Too bad to hear another miggy going down. Those military-spec A2000's are a dying breed i suppose , as are other Amigas too.

10 May 2007, 11:43	#8
alexh Thalion Webshrine Join Date: Jan 2004 Location: Oxford Posts: 14,337	Many A2000 motherboards had "hot fixes" to the motherboard to fix PCB design errors. Look around for any such "hot fixes" as they are often a source of problems, dry joints etc. BTW: What is an A2000T?

10 May 2007, 11:55	#9
keropi . Join Date: Oct 2004 Location: Ioannina/Greece Posts: 5,040	hot fixes??? dunno, it was supposed to work with that config... also it is a rev6.2 mobo, so it should be OK... by A2000T I mean a towered A2000... like when u say u have a 1200T ...

10 May 2007, 12:03	#10
alexh Thalion Webshrine Join Date: Jan 2004 Location: Oxford Posts: 14,337	"hot fixes" = Single wires going from pins on chips to fix layout mistakes on PCB. I asked about the A2000T, not because I did not know what the T stood for, but that I didnt know there was ever an A2000 tower kit. Who made it for example?

10 May 2007, 12:20	#11
coze hastala vista winny vista Join Date: Feb 2006 Location: mt fuji Age: 46 Posts: 1,335	I have a dead 2000 mobo too with the same symptoms. I changed the 68000 socket cause some pins were corroded with acid but still no go. I'll check some more today. keropi do you have something like this ? it must be HUGE

10 May 2007, 12:33	#12
keropi . Join Date: Oct 2004 Location: Ioannina/Greece Posts: 5,040	dunno who made it, it looks like this: Comp. Z Big Tower but it is made for A2000... it is actually a nice tower ... I still have not put it back to see if the CIA pin was to blame...

10 May 2007, 12:41	#13
musashi5150 move.w #$4489,$dff07e Join Date: Sep 2005 Location: Norfolk, UK Age: 42 Posts: 2,351	Make it live keropi.... make it LIIIIIIIIVE!!!

10 May 2007, 12:47	#14
keropi . Join Date: Oct 2004 Location: Ioannina/Greece Posts: 5,040	I'm trying , I'm trying!

10 May 2007, 13:53	#15
keropi . Join Date: Oct 2004 Location: Ioannina/Greece Posts: 5,040	bah, re-sitted everything OK, still nothing... dead... I have 2 new cia's here, u think I should try them???

10 May 2007, 14:00	#16
Chain A-Collector, repairments Join Date: Jul 2001 Location: Czech Rep. Age: 50 Posts: 1,536	or better try another set of ALL chips, ie from 100% working A500

10 May 2007, 14:11	#17
keropi . Join Date: Oct 2004 Location: Ioannina/Greece Posts: 5,040	I don't have other chips, only the gary, 3 cias, and 2 paulas....

10 May 2007, 14:50	#18
alexh Thalion Webshrine Join Date: Jan 2004 Location: Oxford Posts: 14,337	Try a different kickstart ROM. Any chance you can send me some close ups of the back of the tower for BBoAH?

10 May 2007, 16:55	#19
keropi . Join Date: Oct 2004 Location: Ioannina/Greece Posts: 5,040	a different KS.... nope, I don't have one, only the 40.63 that it came with... sure I can send pics, I must borrow a camera though... or use the 1.3MP my N6680 has.... so any other ideas? is there any way to find out what is dead??? I don't know If I am willing to repair this board, or if it worths the money spent....

10 May 2007, 17:17	#20
alexh Thalion Webshrine Join Date: Jan 2004 Location: Oxford Posts: 14,337	Check the PSU power supply under load with a meter? If you dont have an A500/600 you're a bit screwed when it comes to testing stuff. Not got a mate with an A500?

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)