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Originally Posted by bigdodgetrain:

 

has anyone who removed the two pins had any troulble with their update?  I have not.

Nope, not so far.  However, I took the previous advice to heart and since I do have the proper tools and practice, I figured I'd change my technique to the movement of the zero ohm jumper.

 

Originally Posted by brucefclark:

John would you post a larger picture of the zero resister changes with more descriptive lables for us vision challenged OF's.  Thanks Bruce

If you click on the previously posted photo, it will zoom to full size.

 

Originally Posted by Norton:

Interesting that the Zero Ohm resistor seems to be marked as a diode (D1) both on the board and the device.

Yep, but there was really a zero ohm resistor there, and the pins go to VCC and ground from it, so I figured it was the right component.  Not to mention it was the only choice, other than that cap at the lower left.

The bottom legs of the "R" are hidden by the chip, making it look like a "D" in the photo.

 

My blue module has a 100 ohm resistor, not a zero ohm resistor.  Perhaps the idea was that, unlike a zero ohm resistor, you could force a voltage across the resistor to rewrite the module.

 

My Atmel parts do not have a 24C512 designation on them, but rather ATML H844 2FB-2   8G7001

Dale, did you try moving the resistor to see if it works?

 

I like the idea of the 100 ohm, it probably would have been a good idea for all of them.  I believe mine were zero ohm, but I may missed the value.  In any case, since I just wanted to ground the pin, the wire did the trick.

 

That part number comes back to the same capacity EEPROM, so I suspect it's just an updated (or old) part.  The first set of pictures was from a 1.0 version CAB unit, that's the only one I actually looked at the part number on.

 

The beauty of all of this is the blue modules were junk anyway, I'd never use them again for anything once we've moved well past 1.3.

 

John, I agree pulling the resistor (there are several values 0 ohm or 100ohm etc. depending on the manufacturer of the module), and jumpering as you have shown is the best solution. Thank you for detailing the solution for folks to follow.

 

And I will state my caution again, the Legacy Operating system is very complex and even a single bit error in the programming or reading of the module during an update can manifest errors that are unpredictable.  Some integrity checks are performed, during the process, however the risk is real if you float/cut the pins.

Originally Posted by cerbyg:

I think I paid about $15 for my black modules...so, given the cost of this hobby, other than the curiosity factor, why go down this modify route and risk potential problems?


This was handy for me as I haven't been able to get a black module (out of stock).

 

I hoped to pick one up last month when I was in the States but none of the local shops had any. One dealer did have a massive bag of blue modules though.... should have asked for a few.

  

 Nick

Originally Posted by cerbyg:

I think I paid about $15 for my black modules...so, given the cost of this hobby, other than the curiosity factor, why go down this modify route and risk potential problems?

In answer to the question why do it, by all means if this makes you uncomfortable, I suggest you just pass this thread by.

 

 
Originally Posted by trnluvr:

John,

 

How did you get the module itself apart?

 

Doug

I start at one end and tap a small screwdriver in each side, then move to the other side.  The object of the exercise is to break the glue bond on one side and then you can open it up.  Start with the connector facing you and use a small flat blade screwdriver on each side.  Then work from the opposite end the same way.

 

You'll sometimes put a couple of chips in the side of the module, but I've done half a dozen, and I haven't killed any of them yet.

 

Now I have some modules to play with storing configurations.

Originally Posted by gunrunnerjohn:
Originally Posted by cerbyg:

I think I paid about $15 for my black modules...so, given the cost of this hobby, other than the curiosity factor, why go down this modify route and risk potential problems?

In answer to the question why do it, by all means if this makes you uncomfortable, I suggest you just pass this thread by.

 

 
Originally Posted by trnluvr:

John,

 

How did you get the module itself apart?

 

Doug

I start at one end and tap a small screwdriver in each side, then move to the other side.  The object of the exercise is to break the glue bond on one side and then you can open it up.  Start with the connector facing you and use a small flat blade screwdriver on each side.  Then work from the opposite end the same way.

 

You'll sometimes put a couple of chips in the side of the module, but I've done half a dozen, and I haven't killed any of them yet.

 

Now I have some modules to play with storing configurations.

 

I used a small saw for structure building small miter box saw or track cutting saw. Saw a little on both sides and the module comes apart cleanly. I did start at the rounded top end until the saw went flat.

Just did my upgrade to 1.51 using blue modules using Johns idea and worked perfectly. 

 

I had version 1.2 so I could not upgrade directly to 1.51. The computer could not communicate properly with the base using version 1.2. Lionel sent me the 1.3. Blue modules today (free if you call them). After installing 1.3 I made a backup. I then installed 1.51 and restored the backup. The edit engines feature worked great and I cleaned up a few problems. 

 

Great upgrade, especially jumping from 1.2. Also I have two new "black mods" after I do John's modification. now I have too many black modules...last month I had a hard time finding them and paid $17.95 for one. Thanks Gunrunner. 

Originally Posted by toddstrick:

 I used a small saw for structure building small miter box saw or track cutting saw. Saw a little on both sides and the module comes apart cleanly. I did start at the rounded top end until the saw went flat.

 
I presume you noticed you have to be a bit careful with the saw not to chop the little PCB and kill the module, right?
 
 
 
Originally Posted by Jeff Metz:

Great upgrade, especially jumping from 1.2. Also I have two new "black mods" after I do John's modification. now I have too many black modules...last month I had a hard time finding them and paid $17.95 for one. Thanks Gunrunner. 

Glad it worked out for you.  Did you see the "upgraded" modification involving moving the zero ohm resistor?  Given that it's pretty easy if you use wire and not try to position that little resistor, I recommend that method if possible.  I would have initially done that, but I didn't tumble to the fact that the resistor was a configuration jumper.

 

While I really don't believe that there's any realistic possibility of having enough capacitance with that pin cut off to be an issue, Jon had a point that anything's possible.  If you ground the pin by moving the jumper, there is zero chance that it'll ever be a problem, so if possible, that's what I'd do.

John,

Thanks for passing this on,naturally the first module I tried was glued to be never opened, but I did get it opened.

 

Did you notice on the module there's a dot and on the inside you see a hole that is at the spot between the 2?  I wonder if this is used some how to jump the 2 so it can be writable??   What I'm saying is,does Lionel use this hole to jump the 2 and make the module writeable and remove it cover the hole and make it for 1 use??

 

Jon Z ?????

 

Doug

Last edited by trnluvr

Well, if the resistor is a 100 ohm resistor, it would be possible to short it to ground and write the module.  Perhaps that's why Jon mentioned that the resistors could be zero ohm or 100 ohm, the 100 ohm resistors would have allowed for writing before the module was sealed in the plastic.  I checked, and the first one I took apart was a 1.0 module that has a 0 ohm resistor, didn't even look at the others, maybe the later ones are 100 ohm resistors.

I had no problems with the ones I cut the pin, but Jon Z had a good point.  I didn't realize the jumper was actually there for that purpose.  Since it was there, and I have the tools to move it, I decided to adopt that method if I do any more.  I have enough for my use, I bought two and converted five of my blue ones.  Somehow, I think that will keep me in black modules.

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