Asus ZENFONE T500 Service-Handbuch - Seite 8

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Asus ZENFONE T500 Service-Handbuch
ASUS T500

5. TP does not work

Solution:
1
Re-assemble or replace the CTP, then reboot to test again
2
Check if the CTP connector or its soldering is abnormal, re-solder or replace it to test again
3
Measure if VREG_L6_1P8,R1506/VREG_L17_2P85,VD1509' voltage are normal
4
X-ray: check CPU's soldering, add soldering or re-solder it to test again
5
Use a multi-meter to measure CTP test signal point, compare its ground resistance with normal MB's
6
Replace CPU
VREG_L17_2P
85
MB Service Manual
CTP connector
8