jtag alternate wiring

Wednesday 26th of January 2011
Clicks: 15479
Author: chewyb

 

 
 



[PARTS LIST]
2x 10K ohm ¼ watt resistors
2x 2N3904 Transistors
30AWG kynar wire
3/64’ Heat Shrink Tubing

Step 1)
I remove the solder from J2D2 points 1, 2, 4 and 7 using my “solder sucker”
You could also get them cleaned out using de-soldering braid.
If cleaning them is not for you then you can just heat them with your soldering iron and when it melts you just stick the components used in the next few steps through.

a pic

Step 2)
Install the 2 resistors as shown.
Allow the excess legs to stick through the board. We will use them in the next step.

a pic


Step 3)
Flip the motherboard over. Fold the resistor legs over so they pass by each other.
Add a quick dab of solder to join them and then trim off any extra.


a pic

Step 4)
Fold the other resistor legs over as shown and trim them to the length shown.


a pic

Step 5)
Add your first Transistor at point J2D2-1.
Take note: The flat side of the transistor faces away from the GPU heat sink.
During this step the center pin on the transistor gets soldered to the resistor in J2D2-7

a pic


Step 6)
Install the second transistor.
It goes in just like the other one and its center pin connects to the other resistor.


a pic

Step 7)
Solder a piece of kynar wire to each of the remaining legs on the transistor.
You can precut and pre strip each wire.
The wire that goes to the DB1F1 alt point should be 1 ¼ inches in length and the AUD_CLAMP wire should be 3 ¼ inches long.
Slide some shrink tube over each wire to protect against shorts and to make a very professional looking appearance.
Feed the wires through the holes near the southbridge as shown.

a pic


Step 8)
Connect wire to AUD_CLAMP


a pic

Step 9)
Connect wire to DB1F1 alternate point.
On Zephyr version boards this point may be covered in laminate.
On Falcon versions it is already tinned with solder. If you don’t like this point you can always use the real DB1F1(top) or FT1U2 (bottom)


a pic





Notice: The Tutorials have been done many times and were often successfull, however we cannot guarantee the success and so dont take any responsibility for any damages that might be caused by it, you do it on your own risk!!!


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