Voltage Test Points On The Control Board - Mitsubishi Electric CITY MULTI PEFY Series Technical And Service Manual

[ VII Troubleshooting ]

4. Voltage test points on the control board

CN3A
CNMF1
HWE1804A
CND
CN2M
CN3A
CNP
CNMF1 Fan motor output
V
FG
CN2M
V
CC
Vsp Voltage between the C351 pins
CNP
CND
- 20 -
Power supply voltage (208 -
230VAC)
For M-NET transmission cable
connection (24 - 30VDC)
For MA remote controller cable
connection
(10 - 13 VDC (Between 1 and 3.))
Drain-up mechanism output
(13VDC)
1 - 4: 294 - 340 VDC
5 - 4: 15 VDC
6 - 4: 0 - 6.5 VDC
7 - 4: Stop 0 or 15 VDC
Run 7.5 VDC
(0 - 15 pulse)
Voltage on 3 of PC352 and the (-)
side of C351
(Same with the voltage between 7
(+) and 4 (-) of CNMF)
Voltage between the C084 pins
15 VDC
(Same with the voltage between 5
(+) and 4 (-) of CNMF)
0VDC (with the fan stopped)
1 - 6.5VDC (with the fan in opera-
tion)
(Same with the voltage between 6
(+) and 4 (-) of CNMF)
GB