Mitsubishi Electric Mr.SLIM PEAD-SM71JA(L) Service Manual page 35

9-5. TEST POINT DIAGRAM
9-5-1. Power supply board
CNP
CNXB1 CNXC1 CNXA1
CND
C53 CNMF
(*1)
PC51 C25
(*1) (*1)
CND Power supply voltage (220 - 240VAC)
CNMF Fan motor output
1 - 4: 310 - 340 VDC
5 - 4: 15 VDC
6 - 4: 0 - 6.5 VDC
7 - 4: Stop 0 or 15 VDC
CNP Drain-up mechanism output (200VAC)
CNXA1
Connect to the indoor controller board
CNXB1
Connect to the indoor controller board
CNXC1
Connect to the indoor controller board
CNXA2
Connect to the indoor power board
CNXB2
Connect to the indoor power board
CNXC2
Connect to the indoor power board
(*1)
V Voltage on the (-) side of PC51 and
FG
C25
(Same with the voltage between 7 (+)
and 4 (-) of CNMF)
V Voltage between the C25 pins 15
CC
VDC
(Same with the voltage between 5 (+)
and 4 (-) of CNMF)
V Voltage between the C53 pins
sp
0VDC (with the fan stopped)
1 - 6.5VDC (with the fan in operation)
(Same with the voltage between 6 (+)
and 4 (-) of CNMF)
35
Run 7.5 VDC
(0 - 15 pulse)