Toshiba RAV-SM1603ATZ-E, RAV-SM1603DT-A, RAV-SM1603ATZG-E 142, Part name, Procedure, CDB board

No. Part name Procedure Remarks

4 Replacement	1. Detachment	Upside of fan motor	Electric parts box
of electric parts	1) Carry out works of 1 of 1 and 3 .
			(B)
Common		Screw
	2) Remove the connectors connected to CDB board.		Bundling band
procedure
	(Connector of power supply and upper side fan		Power supply
	motor)		Screw
	• Unlock the lock of the housing part and then
	remove the connectors.
	3) Cut the bundling band which binds the power		Supporter
	supply leads.

4)Remove the fixing screws for the electric parts box (B). (BT2T Ø4 × 6, 2 pcs.)

5)Unlock the lock of the supporter for the electric parts box (B).

6)Open the CDB part.

5 Replacement	1. Detachment	4-way valve coil	Serial crossover wire
of electric parts	1) Carry out work of 1 of 1 .
CDB board		connector	connector
	2) Remove connectors connected to CDB board.
		Upper fan	Power supply
	(Power supply, serial, upper/lower fan motor, 4-way
		motor connector	connector
	valve coil, PMV coil, compressor case thermo,
	temperature sensor, IPDU crossover wire, DC15V,
	DC280V)

	3)	Remove CDB board. (Supporters at 4 positions)
	4)	Attach a new CDB board.		PMV coil
		CDB board		connector
		DC15V		IPDU crossover wire
				connector
		DC280V
		Lower		Compressor
		fan motor connector		case thermo
				connector
			Temperature sensor connector
6 Replacement	1. Detachment
of electric parts	1) Carry out works of 1 of 1 , 3 and 4 .		Terminal block crossover wire terminal
Noise filter	2)	Remove the lead wire connected to the noise filter
board
		board. (Power supply crossover wire, fuse
		crossover wire, terminal block crossover wire)
	3)	Remove the earth screw. (BT2T Ø4 × 6, 1 pc.)
	4)	Remove the noise filter board.
		(Supporter: 4 positions)
	5)	Attach a new noise filter board.
				Earth
				screw

Fuse crossover	Power supply
wire terminal	crossover wire terminal

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