/diy/ - Do It Yourself

>first time solder's first project is a PS1 modchip install
How did you imagine this playing out?

>>1567683
Worse than I expected, actually. I had no trouble connecting all of the other pins.

>>1567674
Oi that’s looks like one of my jobs.

Flux!
Good leaded solder!

Also then there is solder paste and hot air guns for SMD stuff, but that’s beyond my current level, kinda my next step.

This is why I learned to solder on old useless stuff and not something important.

>>1567674
Too much heat. Not enough flux. U're torching it.

Pre tin you lazy bastard. Get proper material. Control the fucking heat to just enough, not max heat. You can fix this but you have to plan your moves.

>>1567674
>>1567691
Looks like you obliterated a couple of traces there. It will be hard to fix from this point, but possible. You need to reconnect the traces that you fried, as well as create a new land for the resistor, then go back and try to solder a wire to the resistor once it's back in working shape.

Personally, I would charge you around $75 to $100 to fix that. It would only cost me $1 in parts, but the other $99 is for the skill that it takes to fix 0.010" traces like that.

>>1567695
>>1567708
I was able to connect the wire by pre-tinning and using flux. The console booted up, but the drive wouldn't work. Likely due to lack of land for the resistor and severed traces as mentioned by:
>>1567710

Taking my skill level and equipment (a cheap $30 kit) into consideration, I'm very hesitant to continue, lest I fuck things up further.

>>1567710
is there a rebate for having to listen to you jerk yourself off about it?

>>1567695
>Oi that’s looks like one of my jobs.
Then you should not be offering advice.
>Flux!
>Good leaded solder!
Ugh. Yeah, work on your own technique first. neither is his problem.
First problem: You tip is dirty, not transferring heat, and so you're using too much pressure and applying heat much too long.
Neither flux nor lead solder will help until you fix that.
But at this point, the traces are toast, and you don't have the skill to recover.

>>1567755

Stick a 22 ohm through hole resistor in some shrink tube and soldered wire leads. Land the leads where required, hot glue the component. Jump the rest of the traces (pin to pad) where u can. Mind the vias as they are multi layer but they can be your friend. No need to be lazy.

>>1567755
if the pads are gone ya might as well forget the SMD resistors. take an ordinary thru-hole resistor, slide some insulation tube over the leads, solder it point-to-point from the chip leg to wherever the destroyed trace went to, then stick it down to the board with a tiny dot of hot glue.

>>1567792
Well arent we motivational today.

>>1567802
>>1567806
I unfortunately don't have a hot glue gun on me, although I do have a little bit of extra wire. Would hole resistors work even if the original resistors were only adjacent to the holes (see pic related)?

Connecting the chip legs to where the traces went seems like the most practical option to me at the moment.

>>1567807
HONESTY > CUDDLING
you're not helping anyone by encouraging them to waste more time on a failed cause.

... great analogy for my life, when I come to think of it

>>1567755
It's already fucked m8, what worse could you do?

>>1567802
>>1567806
These may be the best course of action, if you can get a through hole resistor with small diameter leads so that if you move it around you won't put excess stress on traces. Your best bet here would be to try to wire to direct to the vias from the SMD pad, but you risk bridging the pads with solder if you're careless. Get a toothbrush and some isopropyl alcohol and clean up what you can to see how fucked it is proper before proceeding.

What's your iron's tip size? Can you use a smaller one?

>>1567936
I washed the area with some isopropyl on a toothbrush. Here are the results. In the lower half of the image are the two smallest tips I have. I was using the topmost one for most of the installation.

>>1567953
Jesus those tips look awful

>>1567953
It's certainly better than I thought it was. You may be able to get away with just doing a jumper from the resistor with the burnt away pads to the pins where they should go. If you don't have tip retinner, keep using the top tip as that isn't corroded away. between each time you go to solder use a damp (not wet, not dry) sponge to clean the tip if you haven't been. Before you're done using the iron, apply a layer of solder direct to the tip to prevent the tip itself from oxidizing when not in use.

>>1567971
Good to know. I don't have a tip retinner, but I'll make sure to clean it regularly with a sponge. I also felt compelled to add that the installation calls for the left part of the middle resistor to be connected the modchip. Could there be any problems arising from that?

>>1567978
I have no idea other than to say whatever should be connected should be connected. Should the middle resistor also be joined to the QFP it's next to per the trace that looks damaged? Do you have other leads going to that connection off to whatever the mod chip is that have yet to be soldered on?

>>1567998
Here's how I envision this connection occurring, based off the service manual for the motherboard.
https://gamesx.com/wiki/lib/exe/fetch.php?media=schematics:service_manual_scph_9000_3rd_ed.pdf

>Should the middle resistor also be joined to the QFP it's next to per the trace that looks damaged?
According to the diagram, yes.
>Do you have other leads going to that connection off to whatever the mod chip is that have yet to be soldered on?
There's only one connection between this resistor and the modchip. I've soldered every other connection needed.

>>1568011
What's up with this via pad? Do If it's loose and shouldn't be connected to anything, cut the pulled up trace so it doesn't short to any other unintended circuits. How's the trace that runs underneath the un-fucked-with resistors? does that need to be reconnected to anything? If so, you'll probably have to do that on the other side of the board. Simplest would be to solder on to the pad on the other side to the clean that trace runs to below and to the right of the QFP (circled)

>>1568018
The underside of the board is perfectly fine. What's in the red square isn't a via pad, but actually a bit of tin from the middle resistor. It doesn't obscure that trace nearly as much as the pic would suggest. However, looking at the unmodified motherboard and mine side by side made me realize just how far off the resistors are from their ideal positions. The middle one shouldn't be covering the via paid to its right. Would you recommend moving them down a bit before jumping them? I feel like that could guarantee whether or not the traces are no longer working.

>>1568036
Don't think it should matter, so long as you don't have connections made between things that shouldn't be connected. It's hard to tell just from these images what's going on underneath the resistors. But so far, it looks like you've been able to salvage a good portion of it. I'll leave you to the rest of it, good luck

>>1567953
>>1567962
File them clean, have a moist sponge and lots of solder OP. Clean after every joint. Don't be a lazy fag. Tip should never be used unless it's shiny.