Mitsubishi Electric PUHY-200YMF-B Service Handbook page 15

MAIN board
• PUHY
CNTR CNFC1
CN20 SW3
Power supply
3 L1
1 N
CNS2
M-NET transmission
(Centralized control)
CNVCC4
CNS1
Power source for
M-NET transmision
control
SW4 SW2
CN40
M-NET transmission
power supply
SWU2 SWU1
–13–
CNVCC3
Power source for
control
1-2 30V, 1-3 30V
4-6 12V, 5-6 5V
CN51
Indication distance
3-4 Compressor
ON/OFF
3-5 Trouble
CNRS3
Serial transmission to
INV board
CN3D
Cooling/Heating auto
changeover
LD1
Service LED
SW1