Brother FAX-931, MFC-970MC, FAX-921 service manual NCU 1/2

		1					2								3			4							5				6
		(	)															+ 5 V									R E F
														)
								A -	O U T									4									Z D 2
																	R D P S
																										4 .	3 V X 2
																		1 1									Z D 1
														(
	S
										+		-
						7	4											S 0 V
							5	T E L O F F									*
											M
							6	J W 9						E
						3
A																																A
										C			(		)																9
								(	5 )		B																		J W 7 (	5 )
										J W
											M
	E		L 2	J P 9 (	C )	1	2			2 5																				C M L
																			1	6											8
										1 0 )C						*
									(		B				)
													*
L I N E							J P 8				*			)			J	P 4											T E L O F F		2
							(	C )
																	(	C )
											M								3	4
														(													-			R L 1
																															6
										C					(	)											+		J P 1 (	C )
											B
		C H 2	F L 5 R 2 0 0 P N								M				(	)	+													P L S
			X 2									(	)					-													3
										C																		R E F	S 0 V
											B	(	)
																														D A S T
															(																1 7
										+		-
										1		1 2
																														R D P S
																		4													1 3
																			1						)
																				+ 5 V
													C M L
		F L 5 R 2 0 0 P N																3	2						(		)
						+
		L 5
							-																						E A R T H
			E																												1 4
																							E A R T H				(
B																																B
			P L S																S 0 V							R E F	J W 5
																		4	1
																													J W 2 0
				1		4														+ 5 V							( 1 0 )
																									A -	O U T		-	( 5 )
																														A D L C
																															1 6
																											+ 5 V	+
																		3	2
				2																			D A S T						S 0 V
						3
																				J W 1 3
																											S 0 V
																				(	1	0	)
																													T E L R L
																			S 0 V												1
																											S 0 V
																							R E F		-				J W 6 ( 5 )	R L 2	7
																									+
																		1	6
																												+ 5 V
																		3	4												5
																							R E F				S 0 V
			F L 5 R 2 0 0 P N
		L 7	X 2																										D A S N D		1 8
		L 6																													4
C																								1	4				J P 7 ( C )			C
																														P O L
																															1 5
			+ 5 V							+ 5 V														2	3
										5			+ 5 V														J W 1 2		+ 5 V		1 0
																									S 0 V
										Q 7																	( 1 0	)
							T E L R L
										3																			S 0 V		1 1
		)			)
																	+ 5 V ; J W 8 ( 5 ) , J W 1 5 ( 5 ) , J W 1 7 ( 1 0 ) , J W 2 9 ( 1 0 )
							1			S 0 V							S 0 V ; J W 3 ( 5 ) , J W 4 ( 1 0 ) , J W 1 8 ( 1 0 ) , J W 2 6 ( 5 ) ,						1	4
						)																							+ 2 4 V		1 2
	2	(					4										J W 2 8 ( 5 ) , J P 3 ( C ) , J P 1 0 ( C )
		L 1 0				R 6 0				D A S T					R E F
				S P 8												+ 2 4 V ; J W 1 9 ( 5 ) , J W 2 7 ( 1 0 ) , J W 3 1 ( 1 0 ) , J P 1 2 ( C )
						(	2										R E F ; J W 1 ( 5 ) , J W 2 ( 5 ) , J W 1 1 ( 1 0 ) , J W 1 4 ( 5 ) ,						2	3				S 0 V
		S 0 V			(
																	J P 2 ( C ) , J P 5 ( C )
		L 8																						S 0 V
					R E F
			S 0 V			R E F										S I G N A L ; J W 2 1 ( 5 ) , J W 2 2 ( 1 0 ) , J W 2 3 ( 1 0 ) , J W 2 4 ( 1 0 )
		F L 5 R 2 0 0 P N											S 0 V	S 0 V	S 0 V
		X 4
		L 9														J W 1 0
							-									(	5 )															D
D							+
									S 0 V						S P 6
		)								D					*		S 0 V
											G		D A S N D
C N 3										S					R E F	R E F
																											NCU 1/2
4 -	4 P M J																									B
																	F G										(GERMANY, U.K., AUSTRALIA, NORWAY,
		(		S O V																							SWITZERLAND, IRELAND, DENMARK, SWEDEN)
		1					2								3			4							5				6