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Offline Matt_HTopic starter

3000T Trouble
« on: November 23, 2003, 12:20:10 AM »
Put simply, I can't get this 3000T to boot. It's got a Commodore 3640 (rev 3.1), 3.1 ROMs, 2 hard drives. The boot sequence won't even start, so early startup control is not an option. I think it has DMAC 2, not certain of RAMSEY (should be 4, yes?)

When it arrived, the 3640 was kicking around loose inside (bad) and the clock crystal had fallen out. Even when replaced, it's not working. I hope nothing shorted out...

The hard drive clicks as if to boot, but then nothing happens afterward. The disk LED does not do anything. Floppy's not being checked by the system either. The battery has been removed and rerouted to several AAA batteries, though one of the terminals has snapped off the motherboard (I can't see that being the problem).

Any suggestions? I'm stumped. Let me know if you need more details... Thanks.
 

Offline Karlos

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Re: 3000T Trouble
« Reply #1 on: November 23, 2003, 12:38:35 AM »
My only 3000T problem is that I dont have one :-(

Man, sounds like it might have got mashed in transport. Think of the age of the hardware, having a card flailing around inside cannot be a good thing.
int p; // A
 

Offline Castellen

Re: 3000T Trouble
« Reply #2 on: November 23, 2003, 01:23:45 AM »
Does the A3000T have a motherboard CPU like the A3000D??

If so, then see if the system will do anything without the A3640, when it's using the motherboard CPU.

Make sure the ROMs are seated correctly and are placed in the correct sockets, I.E. you have to get each ROM in the socket it belongs into.
Check the power supply has a stable 5V and 12V at the motherboard.

Check the ZIP memory is all seated correctly, no bent pins, etc.
Check CPU is getting slightly warm after running for 5 minutes (indicates it might be doing something :-) )
Check for 25MHz on the two clock source jumpers.  Actually make sure the jumpers are in the correct position as well!  Internal for motherboard CPU, external for A3640.

If you have an oscilloscope handy I can list more things to check...

Anthony.
 

Offline Castellen

Re: 3000T Trouble
« Reply #3 on: November 23, 2003, 01:26:32 AM »
And a good point from Karlos, the A3640 floating around inside may have physically damaged something.

Carefully inspect the entire motherboard for broken or missing components!
 

Offline Amiga4k

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Re: 3000T Trouble
« Reply #4 on: November 23, 2003, 03:00:56 AM »
Using some caution, I will respond. To anyone attempting to troll, remember this is not a contest,  this is supposed to be a help line.

No doubt your frustrated,  but in all likelihood, it's not that serious, I hope.
Is the faceplate marked as an 030 or 040 (if at all). If the unit was stated as functional, the internal jumpers should be set properly. The boot drive "clicking" is bad news, you will need a replacement drive, and the proper AmigaDOS to install. The versions of DMAC , and Ramsey are moot at this point. The A3000T shipped with 2.04 ROMS.  Are you sure it has 3.0/3.1 ROMS (for an early-setup menu) ?

(1) Disconnect the hard drive SCSI cable and power. The A3000T is known to wait in excess, it may take several minutes for it to figure-out the hard drive is absent. (Your luckily, an A4000 can take 5 minutes, but it is rare.)
(2) After the time-out, it should display the "screen".

After you determine the actual Amiga ROMS installed, if you need the loan of a SCSI boot driive (abeit 40-50 meg) with either 2.1 or 3.1 AmigaDOS installed, let me know. I will loan you a drive preloaded with test programs and instructions.
This drive must be returned,  you pay shipping both ways, and a deposit to cover the drive contents. I don't loan them for FREE anymore, as a few never came home. The drive must be retuned intact, without loss of data. The setup cost is $10.00,  deducted from the deposit.
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Offline Matt_HTopic starter

Re: 3000T Trouble
« Reply #5 on: November 23, 2003, 03:34:53 AM »
Update: Problem (mostly) solved

Got the machine going without the accelerator installed. I think it was a bad jumper config / loose chips. Working on the accelerator now.

Thanks for the help, all.

*EDIT*

Okay. Accelerator's working. Trouble resolved. :-)
 

Offline Karlos

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Re: 3000T Trouble
« Reply #6 on: November 23, 2003, 06:05:11 AM »
Quote

Matt_H wrote:
Okay. Accelerator's working. Trouble resolved. :-)


Sweet. 8-)

Now if someone can just help me with my A3000T problem :-D
int p; // A
 

Offline Amiga4k

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Re: Karlos and his 3000T problems
« Reply #7 on: November 24, 2003, 06:13:10 AM »
Please start a new thread, and I'll read it, as will others.
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Offline Karlos

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Re: 3000T Trouble
« Reply #8 on: November 24, 2003, 06:38:39 AM »
@Amiga4K

*sigh* I guess you missed this part...

Quote

Karlos wrote:
My only 3000T problem is that I dont have one :-(
int p; // A