ANSWERED R4B24 came off, repair it, now 0022 RROD

[orenkatz]

Hey,
I have jasper 16 MB and during RGH the resistor next to R4B24 came off and the Xbox wont power up.
I but a 33 ohm resistor and fix it, now the Xbox is power up but I'm getting 3 red light after couple of seconds - 0022, What can it be?

 

[Martin C]

post good quality pictures of all your soldering here.

 

[orenkatz]

Here you go

 

[orenkatz]

and more

 

[orenkatz]

Now when I writing the eec file there is now RROD but the coolrunner green light flash only once

 

[Martin C]

Take a pic of the wiring on the back please. We need pictures in focus, so if they're blurry, don't waste time in uploading them. Need to see how your wires are routed.

 

[orenkatz]

You mean this?

and BTW I flash back to original, disconnected everything, and still RROD so I can say that it is not have to do with coolrunner connection right?

 

[Martin C]

ok, so the issue is with CPU_PLL_BYPASS.

Take a GOOD picture of the area where the green wire is soldered.

 

[orenkatz]

Is it better?
I think its connected good, its not my first console.

 

[Martin C]

desolder the green wire and try booting with the retail NAND.

 

[orenkatz]

As I said I tried disconnecting everything including the green .. still get RROD

 

[Martin C]

Measure the resistance from GND to the CPU_PLL_BYPASS point.

 

[orenkatz]

Between the GND and the green is 0, what those it mean?

 

[orenkatz]

Anyone?

 

[Martin C]

Check resistance of R7R17 (above CPU_PLL_BYPASS). Should be 10k. If it is, then the problem is either with your CPU itself (this line has been shorted to GND), or a component under the CPU on the bottom of the board.

I have one exactly like this in my possession from a customer which I've yet to find a solution for.

A picture of the area would be handy.

 

[orenkatz]

I need to check it when the Xbox is turn off, right?
if so, then it show 0 as well and sometimes 0.01

 

[Martin C]

Yes, with the console unplugged.

Are you checking by putting your probes either side of the resistor?

Can you post an image of it?

 

[cskalash]

either you are reading that the wrong way or your multimeter don't allow you to read that. i have that problem with mine, won't read tiny things. So test it on other resistors of same size and check that

 

[orenkatz]

I tried to touch on one side and the GND,
Now I tried to touch the 2 sides of the resistor and still 0

 

[Martin C]

ok that should read 10k, so it's shorted.

If you have the ability to, remove it from the board and test again off circuit. If it's still 0Ohm it's blown, so will need replacing. R6T3 can be used as a replacement 10k if you don't have one (as your console is going to be RGH, you won't need e-fuses burned any more).