[JBSD]

Hello all,
Anyone know of sources for the JP-1482 Spindle/Power Board?

About a year and a half ago I bought one of the Chinese 3040 3 axis CNC machines off of ebay. I've been reasonably pleased with it but of course it isn't without issues. I've managed to fix what issues I've had until now. I'm pretty sure the power supply board/spindle board is toast and I've been unsuccessful with finding a replacement. I've contacted the seller on ebay but that has been fruitless so far.

This is the black control box T-D 3 axis controller with the parallel port interface. I believe I have the JP-1482 Spindle Board but I'm not 100% since there is no model number for the board anywhere to be found. Individual components are labelled but not the board itself. This board does not have the 555 timer. It looks pretty much identical to the JP-1482 spindle boards I've seen others post online so I'm assuming that is what I have. Looks nearly identical to this one: https://bleughbleugh.wordpress.com/2...spindle-board/

The only luck I've had with my search is locating a "PW3618" Power board but I'm not sure that will even work for me. Does anyone know of a source for this power/spindle board? I prefer to just swap out the board since this one has been trouble from day one. I"m a bit "electrically challenged" so my main preference is to just swap in a new board and get on with life. I've posted the issues I've had below for those that think they can help an idiot like me get back up and running.


The Issues:
Started out with an issue where the spindle would just lose power intermittently and randomly. It would just shut off. Sometimes while running under a load. Sometimes just spinning idly without doing anything. Seemed to be a connection issue because if you'd bump the control box, turn it on its side etc it would work fine again. I opened the case and poked around checking fuses etc. After verifying all fuses were good I discovered if I pushed down lightly on the power board with things running the green led on the board would light up and power would be restored. Take the pressure off and it may or may not stay up and running. Ran like this for awhile without issue and then the problem resurfaced more consistently. After poking around some more I suspected the issue might be one of the fuse holders on the board. If I pushed down slightly on the fuse holder everything roared to life again. I resoldered the suspect fuse holder. I've never liked how the board only has standoffs at the four corners with no support near the middle. I added some small foam rubber pieces just below the fuse holders to add a bit of stability there. This "fix" worked fine for about 6 months then the issues came back. Again, if you just barely wiggled the fuse holder toward the middle of the board the spindle power would be restored. It got so bad the last project I did I had to wedge a small piece of plastic in there to keep things running. The solder joints from the last time I did this looked fine and I should have probably just left things alone and kept my low tech fix in place. I decided to try resoldering the fuse holder again and this time things didn't go so well. Now I just blow the input fuse where the power cord connects 1-3 seconds after starting. It blows the input fuse even if I disconnect the driver board from the circuit. I popped the fuse out of the problem fuse holder and the input fuse will still blow. Turn it on the fan spins for a couple seconds and then nothing.

I haven't seen any magic smoke but after getting frustrated like a moron I tried to do too much too hot and ended up burning up the pads for the fuse holder. I thought I resolved that issue but now it is blowing fuses. Then again I'm pretty sure this board was half junk from the get go. It almost seems like it could have a small internal crack somewhere I haven't seen etc. My electrical knowledge is limited so I'm not too great with trouble shooting circuits and hunting things down. Given the problems I've had I'd prefer to just slap in a new replacement board. I can then butcher, I mean attempt "fixing", this one later on. That said, I'm open to suggestions.

[JBSD]

Just a quick update: I went through things again last night with fresh eyes and managed to locate a short in the spindle board that was causing my issues. So far it appears I have things sorted and am back up and running. I'd still love to find a source for a replacement spindle/power board so I can have it on hand.
Does anyone know if the PW3618 can be used instead of the JP-1482? The only board I have been able to locate is the PW3618. I think I'd be OK but I'm not sure. Even at that the 3618 is $30 plus $30 shipping from China. I suppose the $60 would be better used if applied to upgrading to better electronics all around.

[notserpn]

I know that some time has passed since your original post but I wonder if you ever did find source for a replacement for your JP-1482?