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S9k S9SE Maintenance Guide
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2. Analysis of key point
2.1 The following figure shows the chip domain distribution, signal path and circuit distribution of the S9K S9SE signal board:
DC
输入口
DC input
IO
座
J4
IO Block J4
钳位电路
Clamping circuit
EEPROM
芯片
EEPROM chip
域电压信号电平转换
IC
Domain voltage signal level shifting IC
TMP 451
温感
TMP 451 temperature sense
DC-DC
IO
座
J4
钳位电路
DC
输入口
域电压信号
电平转换
IC
EEPROM
芯片
域
1
域
6
域
5
域
3
域
4
域
1
域
2
TMP45
1
温感
TMP45
1
温感