Mitsubishi Electronics MUZ-GB50VA service manual Outdoor power board, CN2, CN3, CN5

3. Outdoor power board

MUZ-GB50VA

		Connect to the compressor
		Voltage among phases: 5V to
		180V
325-370V DC		Connect to the earth
Output (Red)
(+)	1	CN2
(–)	3	Connect to the controller board
		(+)1-5(–): Signal transmission
	(White)	(To electronic control P.C. board)
			5V DC pulse wave
		(+)2-5(–): Zero cross signal
		3-4	: Not used
		(+)6-5(–): 15V
		(+)7-5(–): 15V
		CN3
		Fin temperature thermistor RT64
		) Signal reception (From
		electronic control P.C. board)
		5V DC pulse wave
		CN5
		Primary current detection
		(Connect to the noise filter)

Connect to the compressor

Voltage among phases: 5V to 180V

Connect to the earth

325-370V DC Output (Red)

(+) 1

(–)3 (White)

CN2

Connect to the controller board (+)1-5(–): Signal transmission (To electronic control P.C. board)

5V DC pulse wave

(+)2-5(–): Zero cross signal 3-4 : Not used

(+)6-5(–): 15V

(+)7-5(–): 15V

CN3

Fin temperature thermistor RT64

) Signal reception (From electronic control P.C. board) 5V DC pulse wave

CN5

Primary current detection (Connect to the noise filter)

33