机型：L50P2-UD 机芯：T962A2
故障现象:不开机
维修与分析：打印信息
BL1:1ef924:56431c;FEAT:ADFD718C;POC:1;RCY:0;EMMC:0;READ:0;0.0;CHK:0;
TE: 156579
BL2 Built : 18:02:44, Feb 23 2017.
txl g3629254 – xiaobo.gu@droid05
set vcck to 1100 mv
set vddee to 1000 mv
set vddee enable AO_8 to high
set vddee enable AO_2 to high
DRAM reset…
init panel power
Board ID = 9
SYS PLL lock check 1
CPU clk: 1200MHz
FIX PLL lock check 1 FIX PLL lock check 2 FIX PLL lock check 3
FIX PLL lock check 4 FIX PLL lock check 5 FIX PLL lock check 6
FIX PLL lock check 7 FIX PLL lock check 8 FIX PLL lock check 9
先量主芯片供电，仔细检查是三端稳压1.8V低变成1.2V了，更换1117后开机正常了。
