Toshiba RAV-SP404ATZG-E, RAV-SP804ATZG-E, RAV-SP804AT-E Part name, Procedure, Remarks, Control P.C

No.	Part name	Procedure	Remarks
4	Control P.C.	1) Disconnect lead wires and connectors
	board assembly	connected from the control P.C. board
		assembly to other parts.
		1. Lead wires	Take off
		• Connection with the power terminal
			earth screws.
		block: 3 wires (Black, White, Orange)
		• Earth wire: 1 wire (Black)
		2. Connectors	Power line

•Connection with compressor: Remove 3P connector.

• Connection with reactor:	Inverter box
	(Metal sheet)
Remove the relay connectors from
P08, 11 (2P, White) and P30, 31	Control P.C.
(2P, Yellow)	board assembly
CN300 : Outdoor fan (3P, White)	P.C. board base

CN701 : 4-way valve (3P, Yellow)

CN600 : TE sensor (2P, White)
CN601 : TD sensor (3P, White)
CN603 : TS sensor (3P, White)
CN602 : TO sensor (3P, White)	Hooking claws
	(4 positions)

CN500 : Case thermo. (2P, White)

CN700 : PMV (6P, White)

2)Remove the inverter box (Metal plate).

3)Remove the control board assembly from P.C. board base.

(Remove the heat sink and the control	Control P.C.
board assembly as they are screwed.)	board assembly

NOTES:

1.CN300 and CN701, etc. at the control board assembly side are connectors with

locking function. P.C. board base

Therefore, remove the connector while pushing the part indicated by an arrow mark.

2. Remove 4 hooking claws of P.C. board base, and remove upward the heat sink with hands.

4) Take off 3 screws fixing the heat sink and main control board assembly side, and replace the board with a new one.

NOTE:	Heat sink	Inverter box
When mounting a new board, check that the
		(Metal sheet)
board is correctly set in the groove of the
base holder of P.C. board base.
Attach the P.C. board so that the heat sink
comes securely contact with the metal sheet.

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