Axpert MEX-1500/ MEX-3000 Service manual
11
4. Functional explanations for each PCB
Item
Series name
PCB name
PCB serial number
Quantity
Remark
1
MEX-1500-12
Main
71-500540-XXG
1
2
CNTL
71-500500-XXG
1
3
SCC
71-500565-XXG
1
4
COMM
71-500567-XXG
1
5
LED
71-500238-XXG
1
6
MEX-1500-24
Main
71-500541-XXG
1
7
CNTL
71-500500-XXG
1
8
SCC
71-500565-XXG
1
9
COMM
71-500567-XXG
1
10
LED
71-500238-XXG
1
11
MEX-3000-24
Main
71-500535-XXG
1
12
CNTL
71-500500-XXG
1
13
SCC
71-500565-XXG
1
14
COMM
71-500567-XXG
1
15
LED
71-500238-XXG
1
Note:
“XX” in the serial number is the version of the PCB.
4.1 Main board
The main board consists of SPS, DC-DC converter, inverter, and charger. Many semiconductors and
easy-failure components on the board, so it should be play more attention when the system is abnormal.
4.2 CNTL board
The CNTL board consists of signal detecting circuit, logic control and driver based on DSP.
4.3 SCC board
The solar current control (SCC) board based on a MPPT control mode .When the solar source is
presented, battery charged from solar source; MAX charge current is 40A if solar panel with enough
energy.
