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Pepper

Member Since 9 Sep 2017
OFFLINE Last Active Yesterday, 3:20 PM

#3929706 TI Related -- Ebay / Heads Up Notice

Posted by Pepper on Sun Jan 7, 2018 6:20 PM

i noticed this one-  PEB + computer & accessories.
 
https://www.ebay.com...5.c100005.m1851

I won this one .... I have my fingers crossed the PEB works!


#3926847 retronet for the TI-99/4A

Posted by Pepper on Wed Jan 3, 2018 9:01 PM



 
  I asked, and the coordinators have launched the RTN_TI group.  So, if you have a BBS with gateway capability, you can add this group.  This group is very similar to the TI-ECHO group in the 90's that disappeared.
  


Nice I'll add that to my retronet instance... Thanks for asking them. I posted in the general chat before about TI... But a dedicated area will be nice!

Pepper


#3898745 replacing LED in 99/4a black/silver

Posted by Pepper on Sun Nov 26, 2017 8:54 PM

coolness :)  ive got some cool colors to pick from- i think the package we bought for her had orange, red, green, blue, pink, UV(!), and 'transparent'.  
 
sounds like i have a project!

I happened to have a PSU that needed the LED replaced. So I made a terrible video showing the replacement. My mic was apparently not working, so there's no audio. I will add that later.

https://youtu.be/Ztcp4WSLvrE


#3898033 replacing LED in 99/4a black/silver

Posted by Pepper on Sat Nov 25, 2017 6:37 PM

Here's my question for the more electronically-minded folks- is it easy to replace the LED in the console?  I'm thinking all you do is desolder the old one and put the new one in its place.

 

I have a bunch of 5 mm LEDs from a project of my daughter that are 20ma, 3V-3.2V according to the package.  Will these work?

 

If it is "that easy" I'll need to find someone with a soldering iron.

 

 

 

Yes, just make sure you get the polarity correct. At the bottom of the plastic part of the LED there is a flat. This corresponds to the the Cathode (-) lead. Make sure you place this in the same orientation as the current LED. 

If you can't find a flat on the LED, you can also look inside the LED. One leg looks like a post (+) and the negative side is much bigger. You can match to the current LED.




#3878928 NanoPEB is not always recognized.

Posted by Pepper on Sun Oct 29, 2017 8:26 AM

 

 

On a side note, I see that you have the PiDP-8 kit :) I build one myself and I have it running Seti@home 24/7  :grin:

Yes, I have the PiDP8/i running a Mystic Telnet BBS. I also have the "blinkin lights" going ;)

I occasionally play Adventure on it also.

I'm looking forward to building his PDP11 clone when that comes out.




#3872574 NanoPEB is not always recognized.

Posted by Pepper on Fri Oct 20, 2017 6:44 PM

I took my 12v regulated Bench power supply and dropped the voltage down to 5V with a DC-DC Buck converter. Still the same symptom. So that rules out the PSU as that's been 3 different sources.

Cleaned the sidecar board contacts with some fine sandpaper. No joy.

It's not going to beat me ... well hopefully not ..lol.




#3868457 NanoPEB is not always recognized.

Posted by Pepper on Sun Oct 15, 2017 4:18 PM

Do you power up the nanopeb first, then the computer?

Yep, I power it up with a 5V/2A supply before turning on the computer.

It randomly works.... very randomly. I'm hoping that replacing the CF reader will help. We will find out.




#3868153 NanoPEB is not always recognized.

Posted by Pepper on Sun Oct 15, 2017 8:28 AM

 

For me, it is a common issue. I "repaired" some by changing the cardreader...

 

You might be onto something  ;) .. I found a sticker on the underside of the CF reader saying "Bad"... Got to love eBay used purchases!

 

Attached File  IMG_20171015_095217.jpg   945.18KB   5 downloads

 

Also, I have an extra wire soldered onto the main board. I don't see it in other pictures of the NanoPEB. It looks to be passing a Ground connection from ^7 on the 74HC000 to the console connector. Should it be there ?

 
Attached File  IMG_20171015_095137.jpg   1.02MB   7 downloads



#3867803 NanoPEB is not always recognized.

Posted by Pepper on Sat Oct 14, 2017 5:57 PM

How about... gallery_35324_1027_10841.png   :?:

It's getting close ! I've mostly been banging my head against the wall.




#3867800 NanoPEB is not always recognized.

Posted by Pepper on Sat Oct 14, 2017 5:56 PM

Another option is to reseat the cardreader on the board, or to change it (I once got them for less than 10eu on eBay)

Ok, thanks. I found one on eBay for $6. Hopefully that'll fix the issue. I did notice that it does not read the CF when the TI is powered up. It used to. Is this a common issue for the NanoPEB?