Dynapath 10 Keyboard

SievertMachinean · Jan 9, 2023

Hey all, I recently went into the shop to machine out some parts. I fired up my cnc mill and went through the normal process that I do when I went to input my tool offsets I noticed that when selecting the number "2" that it would act as the "clear" button and vise versa however if pressed several times in a row it will function as normal but very hit and miss. Along with the button "#2" and "clear" Ive noticed that the "f" and "p" have somewhat swapped places. Now I know that there doesnt seem to be a coincedence between these buttons that have gone hay wire but all of the other buttons work as they should. Another thing to add is that when in the "jog mode" the "#2" functions as it should with no issues. I guess you never realize how often you use a certain button until it goes bad LOL. What would cause certain buttons to not work on certain screens/selections such as my tool offset screen,fixture offset screen or my preloaded program screen "catalog" but the same buttons that dont work in those selections work in the Jog mode screen? I have done the simple things such as unplugging and cleaning pins and connectors. I took the keyboard out and cleaned it up as well with CRC contract cleaner with no avail. If anyone has any input on how to test components or what to look for I would be more than thankful!!!

13engines · Jan 9, 2023

Years ago I had a Dynapath 10M with a similar keyboard problem. Don't recall if it varied depending on what Mode it was in. There is a standard electronic arrangement in a numeric 10 key keypad. You can probably google it and come across what I mean. My problem was on the circuit board in the part of it that was controlling the keystrokes. I don't remember how I figured out the board area the keypad control was on but I did. (This was 15-20 years ago.)

I do remember a row of fancy resistors were -part of it. Not your normal type but I think some sort of Decade Bridge type. (Think decade resistance box) Anyway... I made comparative measurements here and there, but mostly spent a few days off and on staring at the board front and back thru magnification, looking for a bad connections. Most problems with old boards are bad connections. The first and last pins on an IC are typical B+ and ground. My electronics friend said these go thru heating cycles and are some of the first to go.

Long story short... after staring at the board for days I found what I thought looked like a cold solder joint. I re-heated the joint to fix it. It was right in the area of the key control so I was feeling pretty good about it, and sure enough that fixed the problem. Your results may vary.

I have a lot of 10 boards including a keyboard, aka control panel, off a 2 axis Tree mill. I also have a complete working Delta 20 if I remember right. If you're lucky you won't need anything but a soldering iron.

SievertMachinean · Sunday at 4:49 PM

13engines said:
Years ago I had a Dynapath 10M with a similar keyboard problem. Don't recall if it varied depending on what Mode it was in. There is a standard electronic arrangement in a numeric 10 key keypad. You can probably google it and come across what I mean. My problem was on the circuit board in the part of it that was controlling the keystrokes. I don't remember how I figured out the board area the keypad control was on but I did. (This was 15-20 years ago.)

I do remember a row of fancy resistors were -part of it. Not your normal type but I think some sort of Decade Bridge type. (Think decade resistance box) Anyway... I made comparative measurements here and there, but mostly spent a few days off and on staring at the board front and back thru magnification, looking for a bad connections. Most problems with old boards are bad connections. The first and last pins on an IC are typical B+ and ground. My electronics friend said these go thru heating cycles and are some of the first to go.

Long story short... after staring at the board for days I found what I thought looked like a cold solder joint. I re-heated the joint to fix it. It was right in the area of the key control so I was feeling pretty good about it, and sure enough that fixed the problem. Your results may vary.

I have a lot of 10 boards including a keyboard, aka control panel, off a 2 axis Tree mill. I also have a complete working Delta 20 if I remember right. If you're lucky you won't need anything but a soldering iron.

I really appreciate the response. I havent had time in the shop to look it over but I will get back at it tomorrow and see what I can find. I really appreciate your input! Thanks again!!!

13engines · Monday at 11:39 AM

What I can tell in an installation book I have is connections J1 an J2 are likely the connections for the keypad. J1 for small pad and J2 if you have the extended version? Also J9 is the Operators panel. This info might also lead you to the correct Board. I think it might be the first circuit board on the left inside the big black box. I/O

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Dynapath 10 Keyboard

SievertMachinean

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13engines

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SievertMachinean

Plastic

13engines

Stainless

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