4. Trouble Shooting
TOUCH_EN
TOUCHPAD DRIVER LDO
VBAT
C754
C753
1u
22u
3V3_VTOUCH
U706
BH33FB1WHFV
FB704
1
5
STBY
NC
2
6
GND
BGND
3
4
VIN
VOUT
C756
4.7u
Check 3V3_VTOUCH Voltage. It should be
3.3V
When TOUCH_EN = High.
Check "TOUCH_EN" Signal. It should be High
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C755
22u