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Ps3 wont power up after re-ball

All PS3 repair related topics to be kept to this section.

Ps3 wont power up after re-ball

Postby tahitian954 » Thu Jan 17, 2013 3:10 pm

There's a similar thread about this but I dont want to hijack someone elses. I re-balled a 60g back compatible ps3 yesterday, when I tried to test it, I switched the back switch on.. stand-by light came on, touched the power button on front and it immediately shuts down, the green light shows for a split second nothing else.
Took it apart again, made sure the power button ribbon cables were ok which they were, then took the power supply and checked that... it gives 5v at the back where it joins to the mobo, and 12v underneath where the two large pins slide into it (I bridged wire 1 and 5 at the back to test this), tested fuses inside power supply as-well which were ok, so im assuming the power supply is good. I dont have any experience with ps3, but im starting to think bridged solder under rsx, as it acts like a short, had a look around the rsx where I was working, cant find anything there causing a bridge. Should I remove the rsx and start again?
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Ps3 wont power up after re-ball

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Re: Ps3 wont power up after re-ball

Postby domelec » Thu Jan 17, 2013 3:21 pm

check for missing caps around the rsx area if all there then check fuses, if all ok then possibly a short under rsx
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Re: Ps3 wont power up after re-ball

Postby tahitian954 » Thu Jan 17, 2013 9:38 pm

All caps are present, and checked fuses, lifted rsx to check as I had convinced myself it was a bridged joint.... nice clean lift, no bridges. Ive went around the rsx area with a magnifier aswell to check for stray solder, cant find anything!
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Re: Ps3 wont power up after re-ball

Postby tahitian954 » Fri Jan 18, 2013 10:31 pm

Is the way I tested the power supply reliable? Im wondering if im wasting my time looking for a short on the mobo, probably something simple that im overlooking!
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Re: Ps3 wont power up after re-ball

Postby tahitian954 » Mon Jan 28, 2013 11:24 am

Update on this one, still not fixed, ordered another psu which arrived today...... still the same. Sits no prob with standby light on, soon as I press power button, the green light comes on for a split second then the whole thing shuts down. I doubt it very much, but I cant find the short, could it be bridge under cpu?
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Re: Ps3 wont power up after re-ball

Postby tonyjandc » Mon Jan 28, 2013 12:13 pm

Maybe it's not a chip
But the psu has gone faulty standby voltage is low so it only needs small
Amount of current as soon as you switch in it might overload the psu cutting out the unit
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Re: Ps3 wont power up after re-ball

Postby tahitian954 » Mon Jan 28, 2013 3:25 pm

Thats exactly what I was thinking Tony, but I ordered another psu for it which arrived this morning and its exactly the same symptoms. Certainly not impossible with ebay, but the listing said it was tested and working so thats all I have to go on. Im not sure if my testing is sufficient tho, heres how I tested...
I tested output at the back on standby from the 5 line chord.. line 1 + 2 = 5v, line 3 + 4 = ground, and I assume line 5 is for when it powers up from the power button?
I then bridged line 1 and 5 to test for 12v underneath where the two large pins slide into the psu, and it gives 12v, and thats how I tested the first psu.
I was doubting my testing method so I thought I should try another psu, but its still the same problem!
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Re: Ps3 wont power up after re-ball

Postby domelec » Tue Jan 29, 2013 6:07 pm

tahitian954 wrote:Update on this one, still not fixed, ordered another psu which arrived today...... still the same. Sits no prob with standby light on, soon as I press power button, the green light comes on for a split second then the whole thing shuts down. I doubt it very much, but I cant find the short, could it be bridge under cpu?


that sounds exactly like a missing/moved smd cap near the rsx
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Re: Ps3 wont power up after re-ball

Postby domelec » Tue Jan 29, 2013 6:08 pm

where abouts in the world are u based?
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Re: Ps3 wont power up after re-ball

Postby tahitian954 » Tue Jan 29, 2013 9:21 pm

Im in the uk mate. Thanks for trying to help, im about to give up on this one, and I really dont want to do that!
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