Check SYS_DETECT and SYS_DETECT_L levels with battery and charger both connected.
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820-02016 A2337 - Battery not detect
- Thread starter thomamagic
- Start date
thomamagic
Member
SYS_DETECT / 3.74v
SYS_DETECT_L / 0V
SYS_DETECT_L / 0V
thomamagic
Member
test replace Q5155 and same
Good signals, no need to change it.
Good enough to short R5150 pads, when in doubts.
Check UD200/1 SCL/SDA lines; voltage and diode mode to ground.
Good enough to short R5150 pads, when in doubts.
Check UD200/1 SCL/SDA lines; voltage and diode mode to ground.
thomamagic
Member
For UD200 /
pin 2 : I2C_SMC_PWR_1V8_SCL : 0.520 in diode and 1V78
pin 3 : I2C_SMC_PWR_1V8_SDA : 0.553 in diode and 1V78
pin 4 : I2C_SMC_PWR_SDA : 0.377 in diode and 1V22
pin 5 : I2C_SMC_PWR_SCL : 0.032 in diode and 0V
Abnormal for pin 5 i have replace UD200 and RD200 same
pin 2 : I2C_SMC_PWR_1V8_SCL : 0.520 in diode and 1V78
pin 3 : I2C_SMC_PWR_1V8_SDA : 0.553 in diode and 1V78
pin 4 : I2C_SMC_PWR_SDA : 0.377 in diode and 1V22
pin 5 : I2C_SMC_PWR_SCL : 0.032 in diode and 0V
Abnormal for pin 5 i have replace UD200 and RD200 same
thomamagic
Member
for UD201 :
pin 2 : I2C_SMC_PWR_SCL : 0.032 in diode and 0V
pin 4 : I2C_SMC_PWR_SDA : 0.335 in diode and 1v22
pin 5 : I2C_SMC_PWR_3V3_SDA : 0.523 in diode and 3V24
pin 6 : I2C_SMC_PWR_3V3_SCL : 0.677 in diode and 0.8V
pin 2 : I2C_SMC_PWR_SCL : 0.032 in diode and 0V
pin 4 : I2C_SMC_PWR_SDA : 0.335 in diode and 1v22
pin 5 : I2C_SMC_PWR_3V3_SDA : 0.523 in diode and 3V24
pin 6 : I2C_SMC_PWR_3V3_SCL : 0.677 in diode and 0.8V
thomamagic
Member
i have test again with 3 battery (2 compatible and 1 original) same
thomamagic
Member
SYS_DETECT_L : 3.28V now but not charge
SYS_DETECT_L must be 0V.
You should get high level at SYS_DETECT only.
You should get high level at SYS_DETECT only.
thomamagic
Member
oh, SYS_DETECT_L : 3.28V after replace UD201
idea?
idea?
What is SYS_DETECT level now?
You can test the machine shorting R5150 pads.
You can test the machine shorting R5150 pads.
thomamagic
Member
SYS_DETECT : 3.7V
SYS_DETECT_L : 0V
i have shortt R5150 and same
i have 3.2V on pin 5 J5150 only whith battery connected
SYS_DETECT_L : 0V
i have shortt R5150 and same
i have 3.2V on pin 5 J5150 only whith battery connected
"SYS_DETECT_L : 3.28V after replace UD201
.............................
SYS_DETECT_L : 0V"
When I should believe you?
"i have 3.2V on pin 5 J5150 only whith battery connected"
It must be always 0V; make permanent short on R5150 pads.
.............................
SYS_DETECT_L : 0V"
When I should believe you?
"i have 3.2V on pin 5 J5150 only whith battery connected"
It must be always 0V; make permanent short on R5150 pads.
thomamagic
Member
"When I should believe you?" Yes because when battery is plugged on pin 5 J5150 i have 3.28V but on pin R5150 i have 0V is strange
I have make permanent short on R5150 and same. Not charge too
I have make permanent short on R5150 and same. Not charge too
Broken trace???
You can't get different voltages on same trace.
You can't get different voltages on same trace.
thomamagic
Member
But dont have see broken trace with microscope
Pad 1 of R5150 and pin 5 of J5150 are connected together; both MUST have 0V.