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Offline Kristian95Topic starter

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Amiga 4000T not booting
« on: April 23, 2008, 11:07:51 PM »
I've finally gotten all my bits and pieces together to use my A4000T and it won't boot :boohoo:
When I start the machine I am stuck with a black screen and the caps lock on the keyboard blinking slowly... blink.... blink..... blink.... it blinks like that continuously.
The machine has a Picasso IV card, a CSPPC card and a 2Mb eFlash card in it.
I read somewhere that the continuous one flash on the caps lock indicates a problem with one of the CIA chips... is that true, in if it is, is there anyone in the US capable of fixing my dear Amiga for me ??
Proud A4000T owner
Project: Make a GB A1000 :)
Project homepage: http://www.gba1000.info/  <-- The right place for your GB A1000 questions! :)
 

Offline Eclipse

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Re: Amiga 4000T not booting
« Reply #1 on: April 23, 2008, 11:11:17 PM »
Take the cards out and see if it boots as a "standard" machine. You could try CAREFULLY re-seating the IC's one by one.
 

Offline Phantom

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Re: Amiga 4000T not booting
« Reply #2 on: April 23, 2008, 11:14:31 PM »
Follow these rules:

Number Of Caps Lock Blinks -- Description Of Error

One -- Keyboard ROM failed.

Two -- Keyboard RAM failed.

Three -- Watchdog timer failed.

Four -- Short detected in keyboard.
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Offline amesie2

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Re: Amiga 4000T not booting
« Reply #3 on: April 23, 2008, 11:18:59 PM »
I am guessing it will be the E-flash card causing the problem if memory serves, I had a similar problem with my E-flash card but don't recall the exact fix other than moving the jumper so it won't boot from it.
 

Offline Kristian95Topic starter

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Re: Amiga 4000T not booting
« Reply #4 on: April 24, 2008, 12:35:43 AM »
I have tried taking the e-flash card out, I have disconnected the SCSI cd-rom drive and I have disconnected the IDE->CF adapters (taking the IDE-cable out completely) and still no go. I cannot remove the P-IV card as I have no monitor to connect to a bare Amiga and I cannot remove the CSPPC card as I don't have any other CPU card.
The CPU fan on the PPC as well as the case fan both run when the computer is booted.
Btw, the keyboard has been bought as working from Vesalia.de.
Proud A4000T owner
Project: Make a GB A1000 :)
Project homepage: http://www.gba1000.info/  <-- The right place for your GB A1000 questions! :)
 

Offline amesie2

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Re: Amiga 4000T not booting
« Reply #5 on: April 24, 2008, 01:21:04 AM »
Have you tried doing a warm reboot after turning it on? might not work but you never know
 

Offline Kristian95Topic starter

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Re: Amiga 4000T not booting
« Reply #6 on: April 24, 2008, 02:02:42 AM »
I tried a warm reboot, both trying the Ctrl+Amiga+Amiga and the reset button, none worked, still have the caps lock flashing
Proud A4000T owner
Project: Make a GB A1000 :)
Project homepage: http://www.gba1000.info/  <-- The right place for your GB A1000 questions! :)
 

Offline matthey

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Re: Amiga 4000T not booting
« Reply #7 on: April 24, 2008, 02:53:14 AM »
Try reseating the cards themselves, including the CPU card and 4000T I/O cards. If this doesn't work then take them all out and blow out with a can of air or similar and use alcohol on the contacts. Reassemble after drying.
 

Offline rkauer

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Re: Amiga 4000T not booting
« Reply #8 on: April 24, 2008, 03:37:39 AM »
 An A4000T don't boot if the SCSI chain is not terminated.

 Either by a terminated device (like a CD-ROM) or the "passtrough" connector on the back side. Check the SCSI cable, too.
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Offline Tension

Re: Amiga 4000T not booting
« Reply #9 on: April 24, 2008, 04:23:58 PM »
It`ll be the CPU card.

Offline Kristian95Topic starter

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Re: Amiga 4000T not booting
« Reply #10 on: April 24, 2008, 05:11:21 PM »
One step closer  actually I have had the Amiga booting. I think the problem was a conflict between my 2 IDE -> CF devices, I think both wanted to be masters... I solved that one, though my preferred device had to be slave.
The computer boots, no caps flashing, but I'm not there quite yet, because I have problems with the video signal from my Picasso IV card:

Most of the time when I boot (using a standard PC CRT monitor) I get a black screen, well I can see that the Amiga image on the screen is slightly less "black" than the surrounding. Once in a while, when I boot, I get a grey screen instead. It even booted and showed me a _very_ blurred WB screen. Also, once, I got a Guru screen which displayed perfectly. I checked with the monitor, when the screen was giving me the blurred wb screen it was at 31 KHz.... does this indicate that the scandoubler/flicker fixer is in trouble ??

Thanks to all of you for your help throughout this ordeal!!

Btw, I do, somewhere, have an Amiga -> Scart cable for the standard video output, but I am in the US and the TV I have access to does not have a scart plug but only the 3 plugs for Y, Pb and Pr.

The SCSI cable has starts at the external plug, then goes to the CSPPC board and ends at the SCSI CD-ROM.

Btw, I have 2 HD floppy drives in the Amiga, one FZ-357A and one FZ-357B drive, I have bought a new floppy cable from Amigakit, but I am unsure how to set the jumpers for drive selection... should both be DS0 or should one of them be DS1 ?? If one should be set to DS1, should it be the one before or after the "twist" on the floppy cable ??
Proud A4000T owner
Project: Make a GB A1000 :)
Project homepage: http://www.gba1000.info/  <-- The right place for your GB A1000 questions! :)
 

Offline Kristian95Topic starter

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Re: Amiga 4000T not booting
« Reply #11 on: April 24, 2008, 10:08:49 PM »
Ok, I'm getting closer now :)
I have switched the P-IV card to the other video-slot and now it works... when I use WHDLoad it keeps working fine, but when I am in Workbench after a few minutes it stops working (giving me a black screen on my LCD)... anyone have any idea what causes this to happen ??
Proud A4000T owner
Project: Make a GB A1000 :)
Project homepage: http://www.gba1000.info/  <-- The right place for your GB A1000 questions! :)
 

Offline CLS2086

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Re: Amiga 4000T not booting
« Reply #12 on: April 24, 2008, 11:25:18 PM »
Hi,
which display mode do you use for your WB ?
did you use an overscan setting ?
sometime LCD have strange reactions when it's a bit below it's possibilities.
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Offline rkauer

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Re: Amiga 4000T not booting
« Reply #13 on: April 25, 2008, 01:19:17 AM »
 Also check SMT electrolytic capacitors on the board. Swap 'em all, if you get a chance.

 EDIT:

 This is why I insist in swapping the SMT caps around the Amiga boards:linkie
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Offline Vlabguy1

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Re: Amiga 4000T not booting
« Reply #14 on: April 25, 2008, 01:31:39 AM »
Nice to see things working out with your machine..