820-01700-A not charging

Soji

Member
The system works well with only battery connected but not charging with only charger plugged in it draws 20v with 0.00 current
I tested another working board with charger only it draws 20v with 0.043mA I think this board should do the same if it's going to charge
PPBUS_G3H=12.30V
CHGR_EN_MVR_R=5.206V
CHGR_VDDA=5.208V
CHGR_BOOT1=fluctuating around 16.59v to 5.5v
CHGR_LX1=fluctuating around 11.94 TO 0.4v
CHGR_RST_IN=not present
CHGR_A/BMON=0.200v
PPDCIN_G3H_CHGR=20V stable
PPVBAT_G3H_CHGR_REG=12.13V
 

2informaticos

Administrator
Staff member
"PPBUS_G3H=12.30V"
Is this w/ and w/o battery the same?

If you don't use dots and commas on their places, is dificult to understand you correctly.
Do you mean the board works with battery alone, but doesn't turn on at all with charger alone (without battery)?
 

Soji

Member
PPBUS_G3H is 12.30 w/o battery.
PPBUS_G3H is 10.54 with battery.
The board does not turn on at all with charger alone, but turn on with battery conncted
 

2informaticos

Administrator
Staff member
"The board does not turn on at all with charger alone"
This board requires 96/140W charger; it will not start with 87W.
 

Soji

Member
I've gotten 96W charger, The board does not turn on at all with charger alone it draws 20.56v and 0.08mA without battery plugged in.
Draws 20.56v and 4.54A then goes back to 0.00mA with battery connected
 

2informaticos

Administrator
Staff member
"PPBUS_G3H is 10.54 with battery."
With both charger and battery connected?
Check the voltage when you have 4.5A and 0A consumption too.

Check R3021/5 and RB241/2.
UPC_I2C_INT_L is high (1.8V)?
 

Soji

Member
UPC_I2C_INT_L is high(1.8)? Flickers btw
0.9 to1.79 and 1.810 when charger is plugged in with battery connected
 

2informaticos

Administrator
Staff member
I still expect to know PPBUS_G3H voltage with both charger and battery connected.
You've said 10.54V with battery; charger connected also???
 

2informaticos

Administrator
Staff member
When macOS is loaded, reports correctly the battery percentage?

0.2V is high too much for CHGR_AMON, if machine doesn't turn on with charger alone.
Check ohm resistance over C7023.
 
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