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#11 |
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Oh sorry, the component is in the yellow marker of this image:
![]() I've post a video of problem, this is the link: Ps3 power after 10 seconds - YouTube |
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#12 |
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all i can think off is measuring if those resistors still have their value.
![]() but personally i don't think i can help, maybe @underwurlde have some usefull tips... |
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#13 |
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By 'pond' I assume you mean a solder blob or splash of solder that fell on the components circled in yellow?
If so of course this could cause damage, perhaps not to the components that the solder fell on (and hence shorted out) but rather the chip they are connected to. This is what I suspect has happened. Cannot find a datasheet for the chip shown in your picture (the ti 707071) so I cannot ascertain IF that could get damaged. Bear in mind that this chip may be interfaced to other chips and those 'other chips' could well get damaged too. Without a datasheet and circuit diagram for any circuit to be fault found, we are working blind and can therefore only make only the most basic guesses on how to fix. Looking at the picture it looks to me like there are two sets of identical C&R's feeding the 707071 chip to some beefed up tracking which to me suggests not a digital chip but an analogue chip, perhaps a PSU IC (due to beefed up tracking) / driver / controller / monitor. If a PSU IC / driver then offsetting any C&R's could do many things, one of which could be to upset / alter the output voltage. <- Doing that COULD result in larger than required supply rail voltages and THAT would be disastrous! Hence at a guess, I'd say the 707071 is OK and the C&R's that got 'ponded' are OK, but something ELSE either attached to the 707071 or a supply rail (which would now appear to be at the right voltage) went too high damaging other ICs. Pure guess work of course. Andy Last edited by underwurlde; 03-03-2013 at 03:17 AM. |
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#14 | |
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ofcourse the pinout dous not match so it's a bit useless, but this ic is very important for a stable working power. ![]()
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#15 |
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Holey Smokes! Dual switching DC/DC converter, i.e. power supply generation of 3V3 and 5V0 rails. Nice device actually, will have to remember that one.
So, as I suspected then, PSU generation IC. I could rabbit on about how to design-in these devices and failure modes etc, but based on what the OP has outlined above I am sorry to say but I'm 75% sure you've f-ed your PS3 and in such a manner that it's beyond economical repair. ![]() I say this because the components that were 'ponded' appear to be in some sort of feed-back chain from the main output rails and are more than likely there to set the output voltage(s). Again, just educated guess work here. Andy |
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