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4. 故障解决
4.17 RTC 故障
测试点
电路图
R406
10M
X401
FC-135
C411
C410
22P
22P
VRTC_ABB
R1202
1K
BAT1201
DBB_CLK_26M
DBB2ABB_CLKON
R407
100K
DBB2ABB_PWRON
DBB2ABB_RESET
DBB_DBGUART_TXD
DBB_DBGUART_RXD
DBB_UART_TX
DBB_BT_UART_RX
DBB_CHG_EN
DBB2ABB_MSPORT_MSDO
ABB2DBB_MSPORT_MSFS
ABB2DBB_MSPORT_MSCLK
DBB_FLIGHT_CTRL
- 154 -
1206
0.1U
B14
CLKIN
AB11
CLKON
CLKON_H
A17
OSCIN
A16
OSCOUT_N_A
PWRON
A18
PWRON_L
G1
NRESET
A2
TESTMODE
L1
GPIO_0_I_EGSPB0_MONITOR0
M4
GPIO_I_EGSPB1_MONITOR1
M1
GPIO_2_H_EGSPB2_MONITOR2
M2
GPIO_3_L_EGSPB3_MONITOR3
N6
GPIO_4_L_EGSPB4_BACKLIGHT3_MONITOR4
N1
GPIO_5_H_EGSPB5_TWA_PHASE_A_MONITOR5
N2
GPIO_6_I_EGSPD0_MONITOR6
N4
GPIO_7_I_EGSPD1_MONITOR7
P1
GPIO_8_I_EGSPD2_BUZZER1_MONITOR8
P2
GPIO_9_I_EGSPD3_BUZZER2_MONITOR9
P4
GPIO_10_I_EGSPD4_GENERAL_TIME_OUT_MONITOR10
R1
GPIO_11_I_EGSPD4_GENERAL_TIME_IN_MONITOR10
P6
GPIO_12_L_EGSPC0_BACKLIGHT2_MONITOR12
R4
GPIO_13_I_EGSPC1_ALERT_LIGHT_BF_TRST_B
R2
GPIO_14_I_EGSPC2_TWA_PHASE_B_BF_TCK
T1
GPIO_15_I_EGSPC3_TWA_PHASE_B_BF_TDI
R6
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