Sony LX70S, RMT-V293A MA-405 Tuner Schematic Diagram, See page 4-5 for printed wiring board

MA-405 (TUNER) SCHEMATIC DIAGRAM

– Ref. No: MA-405 board; 1000 series –

• See page 4-5 for printed wiring board.

SLV-LX40/LX50/LX60S/LX70S

A

B

1 2 3 4 5

MA-405 BOARD(5/7)

TUNER (TU BLOCK)

XX MARK:NO MOUNT

6 7 8 9 10 11 12 13 14

TU701

AUDIO IN	CH SW	5V	CONT	VIDEO IN	ENABLE	CLOCK	DATA	NC	5V	NC	30V	NC	IF	AUDIO OUT	SIF	AFT	DET OUT
2	3	4	5	6	10	11	12	13	14	15	16	17	18	21	22	23	24

A5

A1 A4 A2 A3

B+

B+

IF

JS753

				B+
C			R704					B+
		R703	560	C701		JL715		JL716
		390		47u
		1/4W		25V	JL717
	RF V OUT	VS15
	8	VT2
	TU VIDEO IN					C796
	MA-405 (2/7)			LX40/LX50		10∝
	(SEE PAGE 4-9)	HT1				16V
	TU AUDIO MONO					C709	C702	C710
						100u	0.01u	0.01u
		RFCH			C797	16V	B	B
			C705	0.033u
					25V			C712
D		S701	XX
					B
								100u
		4CH						16V
		3CH	R712
			0			2.2uH	2.2uH
						L703	L704
		+30V	B+		+30V
								R723
								560
								1/4W
E	16
	MA-405 (7/7)							C794
			B+
	(SEE PAGE 4-19)							0.22u
		SW_5V	AN_GND					B
	AN_GND

F

D702

RD33ES-T1B3

C706

0.01u

B

C704

50V

4.7u R724

470k

1/10W

JL711

	R701	1k	1/4W	JL701	A1
TV/VTR	TS1
PLL CLOCK	R709	1k		JL702	A2
	TS2

					470p
	13				C798
G		PLL DATA	R710	1k	JL703	A3
			TS3
	MA-405 (3/7)				470p
	(SEE PAHE 4-11)			1k	C799
		PLL ENABLE	R711		JL704	A4
			TS4
					470p
					C800
		TU AFT	TS5		JL705	A5
H	8		JL713
	MA-405 (2/7)	RF AUDIO OUT	HT3
			R702
	(SEE PAHE 4-9)		3300
			1/10W

I	14		SIF
	MA-405 (4/7)	AN GND	AN_GND
	(SEE PAGE 4-13)

J

4-15

	Note :
	The components identified by
	mark ! or dotted line with mark
C707	! are critical for safety.
2200p	Replace only with part number
B	specified.

SIGNAL PATH

VIDEO SIGNAL

AUDIO

SIGNAL

CHROMA Y Y/CHROMA

REC

PB

4-16	TUNER
	MA-405(5/7)