JTAG 3 lights after connecting cool runner

[Martin C]

Can you take a pic of the STBY_CLK area??

 

[devi691]

 

[Martin C]

Looks damaged from here. You might need to get someone to check it...

 

[devi691]

no one is there in my city to help me out.
i checked with my multimeter and found no prob here

 

[Martin C]

Based on the fact your console powers on, I would be inclined to agree. What resistance are you getting from R4B24?

Are you also able to check the values of the NAND-x points using my sticky?

 

[devi691]

i repaired that connection but still red lights

 

[Martin C]

Have you retried reading/writing to your NAND?

 

[devi691]

not yet , i was just checking to start my console .
now i will connect my nand x again and i ll update u ,
thanks a lot for helping me

 

[Martin C]

check your values before you connect it up though. My NAND-x sticky should help.

 

[devi691]

still same
looking for usb interface device
cannot continue

 

[Martin C]

what about your values? Did you check them?? My sticky is right there in my sig!

 

[devi691]

as per your nandx voltage
point 1=0.01v
point 2=3.3v
point 3=0v
point 4=0v
point 5=3v
point 6=0v

 

[Martin C]

points 1 and 3 should be around 1v. Getting nothing means you either damaged the traces with bad soldering or you've blown the SPI part of the southbridge.

I would suggest NOW is a good time to get it to someone.

 

[devi691]

point 4 is 40 ohm confirm

---------- Post added at 06:36 ---------- Previous post was at 06:34 ----------

man , there is no one to repair it mile far away.
i have to do it by myself.
can u tell me what else i can do?

 

[Martin C]

I think it's fair to say it's beyond your capabilities.

Where are you located?

 

[devi691]

india in rural area.

---------- Post added at 06:44 ---------- Previous post was at 06:42 ----------

city is around 10Hrs far from my place. using my mobile phone to connect to internet.NO broadband .

---------- Post added at 06:50 ---------- Previous post was at 06:44 ----------

city is around 10Hrs far from my place. using my mobile phone to connect to internet.NO broadband .
in city also there is no console repair shop.
I am computer engineer so i can do few stuffs by myself

 

[Martin C]

If you've still got the stock NAND on there still (as in NEVER flashed with anything), then I think any fix for NAND-x connections would be academic. Best option here is to either bin, sell as faulty or use for soldering practice as it's something you really need! Count it as a loss and move on.

Computer engineers aren't the same as electronic engineers. You could be a Juggler at the local Circus and have better electronics knowledge than a computer engineer.

 

[devi691]

i dont have plan any plan to join circus in near future ,
i will try it again, thanks for trying to help me

 

[Martin C]

lol my point was that electronics and computing are worlds apart