Zybio Z3 Service Manual

50
PIN5: GND
P4
LCD backlight
port
/
/
J21
LCD data cable
port
/
/
J12
Touch screen
port
/
/
J14
HGB signal cable
port
PIN1: LED power +
PIN2: LED power-
PIN3,4: AGND
PIN5: HGB signal input
/
J5
RBC signal cable
port
PIN1,3: AGND
PIN2: RBC signal input
/
J7
WBC signal cable
port
PIN1,3: AGND
PIN2: WBC signal input
/
J27
CPU upgrading
port
/
/
6.4.3 Debugging and Troubleshooting
All the configurable parameters on the main board can be adjusted to command. Adjust the
parameters on the software screens.
LED indicator functions
The functions of the LED indicators on the main control board are defined in Table 6-2:
Table 6-2 Functions of LED indicators on the main control board
Indicators
Functions
Possible causes when the LED does not light
LED3
3.3V power indicator
FPGA defective, main control board short-
circuited
LED4
5V power indicator
Power board defective, DC circuit cable
defective, main control board short-circuited
LED1
12V power indicator
Power board defective, DC circuit cable
defective, main control board defective
LED2
-12V power indicator
Power board defective, DC circuit cable
defective, main control board defective
Test points
The functions of the test points on the main control board are listed in Table 6-3.
If power defective are suspected, first pull out all other cables other than power cables to rule out the
possibility of any short-circuited peripheral.
Table 6-3 Functions of test points on the main control board
No.
Test
Points
Introduction
Troubleshooting

Zybio Z3 Specifications

General

Brand	Zybio
Model	Z3
Category	Measuring Instruments
Language	English