Lenovo A328 Service Manual page 12

LENOVO
Troubleshooting flow chart
Main related component: BBIC(U108)，NAND+SDRAM(U401), XTAL
CRYSTAL（X101),RF-TR(U201), PMIC（U501）,Power button.
Power ON/OFF and download circuit
From BBIC
POWER KEY
MINI USB CIRCUIT
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