nik1981
Member
I have an 820-02016 which initially came in because they said it needed a new battery.
Tested and it won’t go to 20v, just sits at 5v.
Amps go up to .240-250 and cycles off.
Both ports do the same in both rotations
Tested with a known good battery with charge and it powers on perfectly but doesn’t charge.. still just 5v
Tried different USBC port connector.
Tested the following board only with USBC ports attached.
PP3V8_AON_VDDMAIN - 3.8v
PPBUS_AON -12.26v
PPVDD_SOC_S1 - 0.663v
PP1V8_S2 - 1.8v
PP2V5_AWAKE_NAND - 2.5v
PP1V25_S2 - 1.2v
PP3v3_S2_UPC - 3.3v
PP5v_S2 - 5v
PP3v3_UPC0_LDO - 3.3v
PP3v3_UPC1_LDO - 3.3v
PP1v5_UPC0_LDO_CORE - 1.5v
PP1v5_UPC1_LDO_CORE - 1.5v
Checked with FLIR and UF400 is 27° possibly somewhere in L20 pin PP1V8_S2 area
Possibly a faulty CD3217B12?
Tested and it won’t go to 20v, just sits at 5v.
Amps go up to .240-250 and cycles off.
Both ports do the same in both rotations
Tested with a known good battery with charge and it powers on perfectly but doesn’t charge.. still just 5v
Tried different USBC port connector.
Tested the following board only with USBC ports attached.
PP3V8_AON_VDDMAIN - 3.8v
PPBUS_AON -12.26v
PPVDD_SOC_S1 - 0.663v
PP1V8_S2 - 1.8v
PP2V5_AWAKE_NAND - 2.5v
PP1V25_S2 - 1.2v
PP3v3_S2_UPC - 3.3v
PP5v_S2 - 5v
PP3v3_UPC0_LDO - 3.3v
PP3v3_UPC1_LDO - 3.3v
PP1v5_UPC0_LDO_CORE - 1.5v
PP1v5_UPC1_LDO_CORE - 1.5v
Checked with FLIR and UF400 is 27° possibly somewhere in L20 pin PP1V8_S2 area
Possibly a faulty CD3217B12?