Zybio Z3 - Troubleshooting for Main Control Board

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1
TP10
12V power input test
point
voltage is not 12V: main board is defective or power
supply is defective
2
TP7
5V power input test
point
voltage is not 5V: main board is defective or power
supply is defective
3
TP23
Digital earth
/
4
TP18
3.3V power input test
point
voltage is not 3.3V: main board is defective
5
TP19
2.5V power input test
point
voltage is not 2.5V: main board is defective
6
TP20
1.8V power input test
point
voltage is not 1.8V: main board is defective
7
TP21
1.2V voltage test
point
voltage is not 1.2V: main board is defective
8
TP22
0.9V voltage test
point
voltage is not 0.9V: main board is defective
9
TP16
+12V voltage test
point
voltage is not 12V: main board is defective or power
supply is defective
10
TP15
-12V voltage test
point
voltage is not -12V: main board is defective or power
supply is defective
11
TP24
 Analog +5 V voltage
test point
voltage is not 5V: main board is defective
12
TP14
 Analog -5V voltage
test point
voltage is not -5V: main board is defective
13
TP11
57V voltage test point
voltage is not 57V: main board is defective；
6.4.4 Troubleshooting for Main Control Board
Table 6-4 lists the errors commonly found on the main control board as well as their solutions.
However, the list only includes hardware errors and sometimes software errors may cause similar
problem. Also many errors need to be detected by software.
Check the following items before troubleshooting the main control board:
 Check whether the cables connecting to the main control board get loose or insecure.
 Check whether the position No. marked on the cable correspond to the sockets there
are connected to; and whether the cables are broken or damaged;
 Check whether the input power of sockets J1~J16 on the board are normal (measure the
voltages with a multimeter).
 Check whether the indicators on the main control board work properly against Table 6-2.