Hi everyone, it's been a bit. I went and spent a few months learning to solder and using a soldering + heat gun station on a macbook.
I also bought a better thermal camera and noticed that D2001 was also getting hot to ~52C, while 1285A hit 122C.
Would people still say that removing caps one by one would be the correct try here? Thank you.
yayayee
Member
Last Activity: 05-25-2024, 01:22 AM
Joined: 01-08-2024
Location: new york, ny
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Last edited by yayayee; 01-23-2024, 04:46 PM.Leave a comment:
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Just wanted to bump to understand where this RTC section is. Should I just be checking all 3VA_RTC? All of them seem to short on diode mode, and on D2001 with resistance mode at 200K it starts at 14.4 and drops to 0.
Does this mean the PCH is dead as described by [USER="169897"]piernov[/USER] in the video at 40:31?piernov...Leave a comment:
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Where and how would I check for this short on this board?...Leave a comment:
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Hello Steve,
I've measured the resistance from 1-20 in order with no power connected
CS1: 4.13 at 20K
VFB1: 4.60 at 20K
VREG3: 75.0 at 200K
VFB2: 4.05 at 20K
CS2: 14.96 at 20K
EN2: 0.56 at 20M
PGOOD: 97.2 at 200K
SW2: 3.4 at 200
VBST2: 1 on left side at any ohm
DRVH2: 148 at 200K
DRVL2: 146.5 at 200K
VIN: ticks up to 1 on left side at any ohm
VREG5: 3.12 at 20M
VO1: 5.08 at 20K
DRVL1: 146.1 at 200K
DRVH1: 151.6 at 200K
VBST1: ticks up to 1 on left side at any ohm
SW1:...Leave a comment:
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Hey there, just hear to understand a bit more about resoldering ics and capsLeave a comment:
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Hi Steve, thank you for the prompt response.
I assume you mean to measure resistance (ohms settings on multimeter?). Do I do so with power plugged in?...Leave a comment:
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ASUS GU502GV not powering on - 1285A hot
Hello,
I have a laptop that isn't turning on. When I disassemble it and plug in the power connector with the pcb by itself, I can see with a thermal camera I bought that TPS51285A is the only thing getting hot.
So of course, the first thing I do is google the laptop model and the IC, and it just happens that I stumble upon a video by Northridgefix attempting to repair the exact same problem, only for it to catch on fire.
I thought that maybe I'd be lucky so I bought a 1285A, that came in as a 1285B. The only difference I can see between them is that the 1285B...Last edited by yayayee; 01-08-2024, 11:43 PM.
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