PS3 Pulled a pad from diag points, any suggestions on repair?

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oiamlaffin

Forum Noob
Hey everyone, I have been modifying and repairing PS2's for some time and recently got into messing with PS3's. I repaired a Japanese CECHL model without issue, pulling syscon errors to diag and replacing an NEC Tokin.

Picked up a YLOD CECHK console the other day and when I went to solder onto the SYSCON diag pads, the RX pad pulled off the board. TX and Diag are still in good shape.

Does anyone know if I can pickup this connection from somewhere else or where I could possible scratch the soldermask to make a connection?

RIP-Felix's image showing what I am working with:

models-h-k-dia-00x-jpg.41331
 
You'll have to follow the trace that leads to the pulled pad, and try to shave the dark green paint with some razor (very gently) in order to expose the copper trace.

Then you can apply some solder wire to make the connection.
 
GuilloteTesla said:
You'll have to follow the trace that leads to the pulled pad, and try to shave the dark green paint with some razor (very gently) in order to expose the copper trace.

Then you can apply some solder wire to make the connection.
Click to expand...

Thats what I was looking into, but I couldn't quite figure out where the trace goes from the now non-existent pad.

Can't seen to find any real info online about the DIA-002 board for referencing where this pad is connected, I'll have to find a way to look at the board closer.
 
its hard to see from pic. Does it connect to that cap nearby? If there is even a small piece of copper left on trace, you can probe it. ANy better pics?
 
esc0rtd3w said:
its hard to see from pic. Does it connect to that cap nearby? If there is even a small piece of copper left on trace, you can probe it. ANy better pics?
Click to expand...

First thing I did was scrape some of the mask off right below the pad, looks like the pads go through the board directly to the controller on the back through a via. I was able to measure some continuity to the ground plain after scraping the mask back, I was even able to get a successful "Auth1", but even holding a probe to the board and attempting to pull the syscon error codes just returned "0000FF"

I don't have a proper microscope, this is the best picture I could get of it. I am guessing this is just a lost cause at this point because I cannot find any cap or component near by with a direct connection to the via I was able to scrape.

tTBRjtE.jpeg
 
You could actually solder to the via if it's like that, put some flux on the board, blob on the tip and pretin the wire. After you manage to get a good joint you'll want to cover it with some solder mask to prevent it moving around or ripping off. Look up how they do it for switch oled modchip installs, it's a similar process except your via looks already exposed.

If that doesn't work you can always just solder directly to a syscon leg, CECHLxx models have the LQFP package so it should be doable.
 
pstreecco said:
You could actually solder to the via if it's like that, put some flux on the board, blob on the tip and pretin the wire. After you manage to get a good joint you'll want to cover it with some solder mask to prevent it moving around or ripping off. Look up how they do it for switch oled modchip installs, it's a similar process except your via looks already exposed.

If that doesn't work you can always just solder directly to a syscon leg, CECHLxx models have the LQFP package so it should be doable.
Click to expand...

This model I am working on is a CECHK model with a BGA Syscon chip. I tried to solder to the via a few times, but couldn't for the life of me get anything to stick, I really need some kind of magnification for this level of soldering.

Little update on it though, I replaced both back RSX tokins on the board and the console booted. Got me to the dashboard, but then shutdown again and is right back to being dead. I am out of replacements at this point, but I am wondering if I should even bother trying to replace one or both of the top RSX tokins just to see what happens.
 
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