Level 3 Repair
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8-49
8-3-21. S-pen
Yes
Check the S-Pen
connector on Main PBA
Reconnect the HEA9101
No
Check the voltage
L9104,L9106 = 3.3V
L9101 = 1.8V
Resolder L9104,L9106,L9101
Replace the PBA
No
Yes
Resolder C9121, C9127, OSC9100
Replace the PBA.
No
Check Oscillator frequency
C9121, C9127 = 16MHz
Yes
END
Replace the Dizitizer FPCB
"S-Pen" function does not work
Check the I2C line
R5060,R5061 = High
No
Yes
Yes
Resolder R5060,R5061
Replace the PBA
Check the IRQ line
PEN_IRQ = High
Yes
No
Resolder U9101
Replace the PBA.
Abnormal
