Dan's PNP RB25DET R33 Skyline ECU PCB

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HD13
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Re: Dan's PNP RB25DET R33 Skyline ECU PCB

Post by HD13 »

For desoldering a connector you could also use a heat gun.
ivan141
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Re: Dan's PNP RB25DET R33 Skyline ECU PCB

Post by ivan141 »

Still difficult to get enough pins heated at the same time on those big ECU connectors.
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Re: Dan's PNP RB25DET R33 Skyline ECU PCB

Post by DonTZ125 »

I use an electric skillet to reflow my little boards. The same principle should work for dismounting a connector - melt all the solder at once, lift off the device. You may need a helper to hold the board still.
smegma
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Re: Dan's PNP RB25DET R33 Skyline ECU PCB

Post by smegma »

the 76-pin connector could be removed easily...
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Dan
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Re: Dan's PNP RB25DET R33 Skyline ECU PCB

Post by Dan »

OK so I have found the issue relating to why I cannot communicate via the BDM interface.

I hate to admit this, but I soldered the damn cpu IC incorrectly oriented (ie. pin 1 was not where it should have been).

Several EPIC LOL's later at my n00b-ish failure, I managed to damage the pcb removing the cpu IC.

I had two alpha pcb's here, so I started fitting a new cpu IC to the second alpha pcb.

EPIC failure again as I managed to pick a damaged IC out of my component tray and didn't realise until I had soldered most of the pads.

I then proceeded to damage the second pcb whilst attempting to remove the cpu IC.

So...... long story short, I have identified the problem (which is me, the assembler, and not any fault of the pcb).

I will be pushing some minor changes to the pnp pcb in the very near future to correct some component placements that I don't like. (ie. they come close when fitted to the stock ecu enclosure)

More PCB's will be ordered after those changes are made and as a result of my n00b-ness....... (this will happen today/tomorrow)

Fuck I feel like a complete n00b........ shit happens I guess :-P
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Fred
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Re: Dan's PNP RB25DET R33 Skyline ECU PCB

Post by Fred »

ROFL! Respect for having the balls to tell the world! :-D People make mistakes, even perfect people like you ;-)
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Dan
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Re: Dan's PNP RB25DET R33 Skyline ECU PCB

Post by Dan »

I'm far from perfect LOL

I am happy it was my mistake and not a fault on the PCB though :-)

Pushing changes soon and then I will be placing another small PCB order :-)
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Re: Dan's PNP RB25DET R33 Skyline ECU PCB

Post by Fred »

Good stuff! Keep it up :-)
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Dan
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Re: Dan's PNP RB25DET R33 Skyline ECU PCB

Post by Dan »

Decided not to do any changes to the alpha PCB design yet.

Just asked for a quote from my Australian PCB supplier.

Should be ordering another small pcb batch today! :-)
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Re: Dan's PNP RB25DET R33 Skyline ECU PCB

Post by Dan »

Two more alpha boards are ordered! they are being shipped tomorrow, should have them Thursday *fingers crossed* :-)
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