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820-3437 unstable PPVRTC_G3H and SMC_PM_G2_EN
- Thread starter aarone
- Start date
A steady 3.42 V on L7095.
Yeah no corrosion anywhere unfortunately. Looking at the schematic could a faulty ISL6259 cause improper signaling to Q7130 (which looks like it creates PPBUS_G3H) and that cause the fluctuations on PPBUS_G3H? Is there anyway to meter CHGR_LGATE and CHGR_UGATE to know if the ISL6259 is working properly to communicate to Q7130 how long to pulse to make PPBUS_G3H?
Using a different charger (both are OEM) I get about an 11 second fan spin, then off and then on for a split second and then off again permanently.
Using a different charger (both are OEM) I get about an 11 second fan spin, then off and then on for a split second and then off again permanently.
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it's random unfortunately. Sometimes it does it right away when the charger is connected and sometimes it doesn't :/
It wasn't doing it and I pressed down on the U7200 area and it started doing it. No idea if that means anything for real or if it's a red herring.
10 sec on, one off, small blip... then about 30 seconds off and repeat.
heatsink is getting hot during this. I'll take a small video of a few cycles of it and post it
It wasn't doing it and I pressed down on the U7200 area and it started doing it. No idea if that means anything for real or if it's a red herring.
10 sec on, one off, small blip... then about 30 seconds off and repeat.
heatsink is getting hot during this. I'll take a small video of a few cycles of it and post it
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