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Acquired a Tandy 3000NL got questions

supertzar

Member
Joined
May 17, 2007
Messages
33
Location
North Augusta, SC
I have 3x 3000NL's--it's one of my favorite computers since it was the first PC I ever had. And holy corrosion, yours got hit bad. Sounds like you're having a rougher time than I did using it. I haven't had to do anything to mine so far--the daily driver I'm using just got a good cleaning, but runs like a champ on all the original caps and everything.

So some feedback to the issues you're having...

The 3000NL powers its 1.44 floppy over the ribbon cable, so that may be why you're having odd behavior with the new drives (if they're normal drives). You have 2 options, either get replacement Tandy drives, or you can mod the cable or new drive pins to remove the power being received from the ribbon. I put a Gotek in mine and actually ended up just clipping a bunch of pins and it worked fine. See this VCFED link for details.

On the RAM. If you don't have the 8-slot extended memory card, to get 640k you have to populate the 2 SIMM slots on the motherboard, AND you have to add 128k of DIP memory in the sockets next to it. The proper procedure if you want more memory than that is to remove all memory from the motherboad, and just populate it on the expansion board--i.e. do something like 4x256k SIMMs for 1MB. Then the jumpers must be set accordingly. If you need jumper settings, you can check the faxbacks on Oldskool.org, but it sounds like you may have that info already.

Finally, I have an original print of the 3000NL service manual. If you still need it, I'd be happy to do some scans of whatever you may need out of it.
 

peterfleeman

New Member
Joined
Feb 13, 2017
Messages
2
I have 3x 3000NL's--it's one of my favorite computers since it was the first PC I ever had. And holy corrosion, yours got hit bad. Sounds like you're having a rougher time than I did using it. I haven't had to do anything to mine so far--the daily driver I'm using just got a good cleaning, but runs like a champ on all the original caps and everything.

So some feedback to the issues you're having...

The 3000NL powers its 1.44 floppy over the ribbon cable, so that may be why you're having odd behavior with the new drives (if they're normal drives). You have 2 options, either get replacement Tandy drives, or you can mod the cable or new drive pins to remove the power being received from the ribbon. I put a Gotek in mine and actually ended up just clipping a bunch of pins and it worked fine. See this VCFED link for details.

On the RAM. If you don't have the 8-slot extended memory card, to get 640k you have to populate the 2 SIMM slots on the motherboard, AND you have to add 128k of DIP memory in the sockets next to it. The proper procedure if you want more memory than that is to remove all memory from the motherboad, and just populate it on the expansion board--i.e. do something like 4x256k SIMMs for 1MB. Then the jumpers must be set accordingly. If you need jumper settings, you can check the faxbacks on Oldskool.org, but it sounds like you may have that info already.

Finally, I have an original print of the 3000NL service manual. If you still need it, I'd be happy to do some scans of whatever you may need out of it.

Hi there. I need the pin out for the power supply / motherboard connection. I recently acquired a 3000 NL that is missing the power supply. Could you send me a scan of that page of the service manual? Thanks!
 

Dokken

Experienced Member
Joined
Feb 27, 2018
Messages
131
Location
TN
Tandy 3000....I bought one of these in box, almost new at a local flea market a couple of years ago. The guy said it was in a storage unit he bought. I remember thinking I'd found a unicorn as there was very little information on it.
 

rmay635703

Experienced Member
Joined
May 29, 2003
Messages
495
Location
Wisconsin
The 3000 series was Tandy’s mostly AT standard PC that filled their high end
(See add talking about running CAD)
A52EAE01-2A12-4561-90E4-72953982AB29.jpg
While the 1000 series was the PCJR compatible that filled the XT level low end

Tandy kept trying to sell high end equipment but their high volume was always the low end and home computers
 
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