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PPBUS_G3H: 13.04V 0.462V in diode mode on PMIC_SHUTDOWN_L R7828 reads 100kΩ, still swap this out for a 10-47k? Thanks

Liquid damage with slight corrosion around U2890, U3500, Q7660. So slight that I thought brushing it off with alcohol would be enough to bring it back to life. Rest of the board looks mint. No traces or pads corroded but I did replaced U2890, U3500, Q7660, Q7680 asa precaution with no change...

From Page 57: PP3V3_S5: 3.3v steady P1V8S3_EN: Pulses up to 3.2v when power is connected PP1V8_S3: Pulses up to 1.8v when power is connected PP3V3_SUS: 3.3v steady PP1V05_SUS: 1.05v steady So... P1V8S3_EN: Pulses up to 3.2v when power is connected is obviously not good?

Ok... am looking for an output that doesn't pulse with the rest of them?

Trying to start in SMC bypass: As soon as I let go of the power button the fan spins one cycle, stops. Spins again, stops. Doesn't continue/no other sign of life. Seems a bunch of the outputs on page 57 rely on PM_SLP_S4... which I'm missing.

PM_SLP_S3_L does the same. There is pulse at pins 7 & 3 of U1950.

PM_SLP_S4_L pulses to 3.3 when I connect power for a second, then remains 0v. When triggering SMC_ONOFF, it does jump up to 3.3v.

Trigger SMC_ONOFF_L and check for drop pulse at PM_PWRBTN_L: It does drop Looking at the power state table now... first time I've done it! :O Here comes the noob question... what am I looking for? I assume the "1" means that PM_SLP_S5_L will only be on in the S0 and sleep states. Should I be...

I'm following the the map: https://logi.wiki/index.php/G3_to_S3_State_for_Ivy_Bridge_Haswell_and_Broadwell Everything measures good up until PM_SLP_S5_L. Below is what I have recorded. According to the schem this PM_SLP_S5 comes from the PCH? Or am I reading that wrong... thanks in advance :)...

820-3115: i7 model This is an odd one I've had on the shelf for probably a year. Sometimes it boots up normally... and sometimes it boots up with a wonky resolution as seen here, detecting the standard 13" display as a "23-inch". I ran ASD just now and it passed. Wtf?

Confirmed, new speaker fixed the sleep/wake issue.

It actually seems like the sensor is a part of the speaker on the (right) side. With the speaker disconnected, it doesn't go to sleep with the lid closed, and there is a little nub on that speaker that sits up flush with the top case that the other speaker doesn't have. Guess new speakers on the...

I'm going to pipe in here as I have the exact issue. After closing the lid, the unit backlight won't come back on after. The touchpad is powered up, keyboard backlight on, but only way to get the display to come back is to turn it off and back on. This has a replacement logic board, the...

Tekpower... amp set to 5.2

Well... yeah. I bumped it from 1.8 to 2.8 as nothing obvious was showing up... unwise judging from your response?

In resistance mode: PP1V8_SLPS2R is 0.9ohm I happened to get in a working board (yay!) and it is getting 4.5kohm. I injected shy of 3v and can't find the damn problem even using Flir. Lots of areas getting warm... but nothing on this line.

Coming back to this one, the "top" USB-C port isn't staying on. With the voltage reader plugged in the screen flickers on/off/on/off/on/off etc. The bottom port reads 5v 0.01amp. I replaced both CD3215. I tried with a diff USB-C port piece and the top port started working. Put the original...

Just started messing with iPads this week. Did a couple Tristars without problems, until this iPad Air 2. Tristar tester tells me it's bad, so I replace with 1610A2. Plug in the tester, and the flex passes, then the tristar passes. I put it all back together... won't charge or detect the...

PPBUS_G3H showing 12.3v, but seems to flicker down to 10v or 0v every few seconds. PP1V8_AWAKE is flickering between 0v and 0.7v. No luck/signs of life trying to get into DFU mode.

Coming back to this one. Things "look" clean. No broken traces that I can see, no really nasty components. Should I be hunting down TBT_PWR_EN?