Jasper: No green light on coolrunner

[Vest1ge]

Jasper 16MB

Done about 5 of these ones so far.

This one booted into Xell fine, then didn't boot after i flashed the NAND with a build from multi builder 0.7

So after programming a ecc image back with NAND, the green light on the cool runner won't flash and back to no boot.

Switch is set to NOR and PHAT

 

[coolkiddj12]

check this guide. http://team-xecuter.com/forums/showthread.php?t=75787

 

[Vest1ge]

done that from the start....

Its a bigger problem than that....

 

[coolkiddj12]

The green light is suppose to blink when it is trying to boot, is it blinking?

 

[Vest1ge]

No, its ment to flash on each cycle. No flash. But did when it was working originally.

 

[Hackerjac]

sound like bad soldering, post close up hq clear pic of your soldering

 

[coolkiddj12]

Im with hack it could be read errors

 

[Vest1ge]

it appears to be more to do with the coolrunner chip itself. But i have tried a second chip with same results

 

[hodgie]

i have found that the location of the pll_bypass can be an issue. i had a big block jasper that i had to finagle the wire, trial and error to find a spot where the green light would blink. interferance seems to be a big issue
i actuall ran in front of the fans, and under the board that way, around the solder point of the blue(cpu_rst) and in to its solder point

 

[Vest1ge]

check your wires.

Re soldered all of them...

Its odd, isn't it.

i have found that the location of the pll_bypass can be an issue. i had a big block jasper that i had to finagle the wire, trial and error to find a spot where the green light would blink. interferance seems to be a big issue
i actuall ran in front of the fans, and under the board that way, around the solder point of the blue(cpu_rst) and in to its solder point

Been trying this, hasn't changed it, and it was working before i re-flashed the NAND. Thanks for the good advice.

Trying to think of things that could've changed in that time on the console

 

[Martin C]

Nothing we can even suggest without pics of your work.

 

[b4nn3d]

How did you flash? I had problems with the old version rawflash included with multibuilder.

Bad/cold solder joint could also be a good guess.

 

[gargoyle67]

You haven't mentioned a cap yet have you tried one ? My Jasper 16 wouldn't glitch consistently until I added one, Or bridged the solder point on Rev 2 coolrunner.

 

[Vest1ge]

I have used an alternate point, after the pad came off when redoing all the connects after it had stopped working.

You haven't mentioned a cap yet have you tried one ? My Jasper 16 wouldn't glitch consistently until I added one, Or bridged the solder point on Rev 2 coolrunner.

I used the capacitor to get it to boot better for the few boots it did when it was working. And whats this about bridging a solder point?

How did you flash? I had problems with the old version rawflash included with multibuilder.

Bad/cold solder joint could also be a good guess.

The flash that stopped it working was through raw flash, tried then again using CMD Nandpro with ecc image as well as freeboot build as i got the CPU key. as well as with original stock with still no boot even with cool-runner disconnected.

 

[Martin C]

so no pic of the layout of your wiring?

 

[gargoyle67]

Bridging a solder point is on the new rev2 coolrunners and is for on board cap activation, Your blue wire doesn't look that great, Hard to tell from the blurry pic, I have read some cases of block size being recognized wrongly, People thinking their machine is 16k,256k,512k when it's something else as the memory wasn't showing in xbox memory setting, Maybe worth eliminating after you recheck your wiring if all else fails.

 

[Vest1ge]

the layout was as per the boot/freeze problems diagram

 

[Martin C]

the layout was as per the boot/freeze problems diagram

Do you get continuity from CPU_PLL_BYPASS and the A point on the CR?

Do you get 10k from GND to CPU_PLL_BYPASS?

Have you tried booting with stock NAND and CR set to PRG?

 

[hodgie]

im curious, pic 6 from your link doesnt match the alt point for post_out1 from here, or am i seeing it wrong?

 

[Martin C]

lol well spotted! I didn't even see that.

OP - you missed you alt point by 2 spaces.