Figure below 7 is shown： The signal voltage of each chip can be measured，CORE VoltageLDO-1.8 or、LDO-1.8I、PLL-0.8、LDO-2.5I
Equal voltage:
CORE
：
0.4---When this voltage is abnormal
，
Generally the voltage domain of the chip CORE Short circuit
LDO-1.8 or：1.8---When this voltage is abnormal，The chip LDO-1.8 or Or LDO-1.8I Short or open circuit
LDO-1.8I：1.8---When this voltage is abnormal，The chip LDO-1.8 or Or LDO-1.8I Short or open circuit
PLL-0.8：0.8 in---When this voltage is abnormal，the voltage domain has a chip PLL-08 Power supply short-circuit, or LDO-1.8 Abnormal.
LDO-2.5I：2.5---When this voltage is abnormal，The chip LDO-2.5I Short or open circuit.
CORE
7, Chip peripheral test point and each voltage
3） According to the information on the diagnostics tool, the operational state of the Operation board, the chip arithmetic ability and the temperature
sense are judged.
3、IO Port：IO by 2X9 pitch 2.0 PHSD 90 The degree of straight-in double-row
composition.
The individual pins are defined as the following figure 8 is shown
：
6
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