Thanks for the help.
Unfortunately, I don't have a thermal camera yet, but I will invest in one, and then I'll take a closer look, processor overheating doesn't seem to be a short circuit the low current consumption suggests something else. Of course, the processor could be faulty even without a short circuit. It's very difficult to tell.
For now, I'll set this notebook aside and continue later when I have the proper equipment.
Thank you all for your help!!
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[B]Not rather from the other part[/B]
[ATTACH=JSON]{"data-align":"none","data-size":"custom","height":"499","title":"11.jpg","width":"374","data-attachmentid":3313015}[/ATTACH][B]Not rather from the other part[/B]
[ATTACH=JSON]{"data-align":"none","data-size":"custom","height":"499","title":"11.jpg","width":"374","data-attachmentid":3313015}[/ATTACH]
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I checked at 1V and nothing was heating up at all, not even at 1.8V. However, after a few minutes, there was a slight warmth coming from the processor, but nothing serious. What should I do now?
On 1.8V taking 0.69-0.73A
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[B]PL8400[/B]
On 1V taking 0.4A
Should I raise the voltage?[B]PL8400[/B]
On 1V taking 0.4A
Should I raise the voltage?
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Update: The IC has arrived, I soldered it on, and the USB is now working perfectly. Thank you Mon2!!
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Will injecting 1V and say 2-5A into the 1.8V line be sufficient?
Thanks for the tip, by the way.
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I thought that low resistance was acceptable on low voltage lines.
What does it mean if the 1.8V line is shorted? What should be done?"...
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[B]PL8400[/B]
2.8 ohm to gnd
1.8V power on state
[ATTACH=JSON]{"data-align":"none","data-size":"custom","height":"845","title":"fggffgfgfgfg.jpg","width":"634","data-attachmentid":3312833}[/ATTACH][B]PL8400[/B]
2.8 ohm to gnd
1.8V power on state
[ATTACH=JSON]{"data-align":"none","data-size":"custom","height":"845","title":"fggffgfgfgfg.jpg","width"...
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Here's a little status update: I got a 135W charger, but unfortunately, the 1.2V for the RAM is still missing.
What else should I try experimenting with? Where should I inject the voltage? The 1.2V is missing at RAM IC controller.
Would replacing the SIO chip solve the problem?
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I tried it, with 1V injected precisely at the legs of the inductors, both inductor legs are fine, and there is no current draw, whereas when the inductors were connected, the machine drew 0.6-0.8A.
So, from what I understand so far, something is short-circuiting, because instead of 19V, the machine fluctuated between 0-3V. After removing the inductors, the MOSFET source leg was fixed. When I put the inductor back, there's a short circuit on mosfet source (0 ohms).
Unfortunately, I'm stuck here; could it be my luck, or is the processor the issue?
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Without the two inductors, the PU4302 Source is [U][I][B]2-3MOhm[/B][/I][/U]
VCC_CORE is[I][B] 2.7[/B][/I] [I][B]Ohms[/B][/I] and [I][B]3.7[/B][/I] [I][B]Ohms[/B][/I] PWR_VCORE_SW2 is [I][B]OL[/B][/I] PWR_VCORE_SW1 is [I][B]170k Ohm[/B][/I]
However, when any inductor is reattached, the PU4302 Source remains at [I][B]0 Ohms[/B][/I]
Could I be lucky this time?Without the two inductors, the PU4302 Source is [U][I][B]2-3MOhm[/B][/I][/U]
VCC_CORE is[I][B] 2.7[/B][/I] [I][B]Ohms[/B][/I] and [I][B]3.7[/B][/I] [I][B]Ohms[/B][/I] PWR_VCORE_SW2 is [I][B]OL[/B][/I] PWR_VCORE_SW1
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Unfortunately, after removing the inductors, the suspicion of a short circuit remained on the processor side. In both areas where I lifted the inductor legs, the processor side is around 2 ohms (VCC_CORE) , and from other side it's OL to ground (PWR_VCORE_SW1-2) .
Edit: I suppose if I plugged it into the charger now, the voltage wouldn't jump between 0 and 3, right?
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Found it.
[ATTACH=JSON]{"data-align":"none","data-size":"custom","height":"380","title":"rtrtt.png","width":"445","data-attachmentid":3308922}[/ATTACH]
PL4701 PL4702
PL4701 to source pin is 0.3 Ohm
PL4701 to ground 4 ohm
PL4702 to source pin is 10 ohm
PL4702 to ground 6 ohm
also found this near to these inductors
[ATTACH=JSON]{"data-align":"none","data-size":"cu...
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[I][B]PU4301[/B][/I]
Source to Drain 5Mohm
Source to gate 2Mohm
Gate to drain 125kOhm
Ground to drain 114kOhm
Ground to source 125kOhm
Ground to gate 45kOhm
[I][B]PU4302[/B][/I]
Source to Drain 112kOhm
Source to Gate 100kOhm
Gate to Drain 225kOhm
Ground to drain 110 KOhm
Ground to source 3.5 Ohm [I][B](!!)[/B][/I]
Ground to gate 100 KOhm[I][B]PU4301[/B][/I]
Source to Drain 5Mohm
Source to gate 2Mohm
Gate to drain 125kOhm
Ground to drain 114kOhm
Ground to source
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Dell inspiron 13 5000 - Doesn't turn on, overheating
I have a Dell laptop with me, a DELL inspiron 13 5379. It doesn't turn on. After some investigation, I found that the charger is delivering 0-3V instead of 19.5V, and this voltage fluctuates constantly. Additionally, two ICs are overheating. I searched for these ICs, and it seems they are likely related to the issue of not having 19V.
Should I inject voltage somewhere, or should I replace the ICs right away?
So, PU4301 is overheating, and the surrounding area is hot, possibly just because of this IC.
[ATTACH=JSON]{"data-align":"none","d...
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Thank you, I didn't know that. Also, thank you for all your help. I have ordered the part, and once it arrives, I will replace the faulty part.
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Thank you, I didn't find similar from my parts so I'm gonna order it.
[B]If it's 99F instead of 998, or if the last segment doesn't match, is that okay? Because I found one that says 2546 TI 99F S244 - Will that work?[/B]
[ATTACH=JSON]{"data-align":"none","data-size":"custom","height":"991","title":"448547908_2600075743510756_7457432981448252191_n.jpg","width":"743","data-attachmentid":3297356}[/ATTACH]Thank you, I didn't find similar from my parts so I'm gonna...
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Thank you mon2! I found what you mentioned, I'm almost certain about it. This ic is blown up right?
[ATTACH=JSON]{"alt":"Click image for larger version Name:\t448886078_3182447251891608_8632412700523517623_n.jpg Views:\t0 Size:\t154.0 KB ID:\t3297313","data-align":"none","data-attachmentid":"3297313","data-size":"custom","height":"496","title":"448886078_3182447251891608_8632412700523517623_n.jpg","width":"372"}[/ATTACH][ATTACH=JSON]{"alt":"Click...
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