Maybe it increases current capacity, or helps it run cooler..??

Must be a new design to mount the glue chip on the power supply transformer. Bet its that new virtual design.

PhilC wrote: ↑

Tue Jan 21, 2020 7:22 pm

You never know @PaulJ , I might get my third one completed before @rubber_jonnie as well?

Hmm, I'm betting @rubber_jonnie will finish the H4 up. I wonder if @exxos is going to spin a H4.1 will all fixes incorporated.?

PhilC wrote: ↑

Tue Jan 21, 2020 6:48 pm

And one MMU pin being held down with flux instead of solder fixed and now I have a booting SMT H4 as well

Whew, I was afraid @rubber_jonnie was going to best ya there for a while. Congrats, Phil!! nice job.

So, a while back, I got some boards from Sety as mentioned here: https://www.exxoshost.co.uk/forum/viewtopic.php?f=11&t=1588&hilit=pcb+set Since the NetUSBee is the smallest board with the least parts (Compared to the TF520 and TF530 I also got), I've decided to have a crack at building it soon. Fi...

Much better @PhilC, must be getting close.

Ok, just ran into a strange issue with H4#2. The cartridge port works with the dogcart and all tests pass. I put the netusbee in and it hangs on boot with either a checkerboard video display or a white screen. Works fine on H4#1... The only difference is the #2 has the SMT MMU and GLUE but I doubt t...

@PaulJ yeah the gnd pin takes a lot of heat. In some cases it took my gas iron and soldering iron to remove it. Yes, I had to borrow a board heater that sets under the board and brings board temp up close to solder melting and then use wick and an iron on top with more solder and flux. I really bel...

PhilC wrote: ↑

Sun Jan 19, 2020 7:40 am

@PaulJ , nope, no time yesterday in the end. Hoping to have a but more time today but just started another major project at work again too.

Well hopefully you'll get some time to solve the issue. That pesky work always getting in the way.

exxos , when I removed mine I believe it was one of the turfiest removals I've done. The ground pin was horrible. The ground plain must not have thermal relief. I'm guessing its just a hole in the huge ground plain that sucks off all the heat. Was a real pain. Great video which gives people a warni...