Sony Ericsson service manual Block Diagram — Display Section, CDX-M620/M670, Tuner

CDX-M620/M670

4-5. BLOCK DIAGRAM — DISPLAY SECTION —

							SUB SYSTEM CONTROL
								IC702
	BUS SI						98	UNI SI	SA CLK	1
	UNI SO						97	UNI SO	SA IN	112
2
	BUS CLK						101 UNI CKI
CD	BUS ON						38	BUS ON
	BU CHECK						34	BU IN
SECTION
(Page 34)	S RST	6		BUF		7	81	SYS RES
			IC701
	LINK OFF						50	LINK OFF
	SIRCS
	D70
		IR
		16 RECEIVE			7
		IC62
	D908
		IR
		16 RECEIVE			7
		IC901
	LCD DRIVER						85	XTAL
		IC60

(Page 35)

3

SA CLK	TUNER	SYSTEM CONTROL
SA OUT	SECTION
		IC501 (3/3)

	AD ON
BU 5V	SW
	Q501
		80	AD ON
		79	KEY ACK
AEP,UK,E
J651		72	RC IN1
(REMOTE IN)		48	RC IN0
	KEY IN	46 KEY IN0
	MATRIX	47 KEY IN1

INHCLKLED DATACEODIMMERSW1

97 99 100 98 86 85

86 EXTAL	BOOT 57
X701	LED SW2 47
18.432MHz
	LED SW1 46

106	BOOT
116	LED SW2
115	LED SW1	(Page 34)

POWER

LCD 9V CONT. Q60,61

LCD60

DIMMER

CONTLROL

Q62

97 99 100 98 INH CLK DATA CE1

		LCD DRIVER
			IC61
	CN902
ILL ON 9V			LCD 9V
TX (SO)

		RX 62
		LCD SO/TX 60
66	CEO
69	INH	ILL ON 52
64	CKO LCD

70CEI

71CE2

POWER

9V CONT. LCD9V

Q109,112

					12 RX		1
					13 TX
							CD	CD ON
					82 FLSWPWON		SECTION	MD ON	POWER
		REG				DDC ON 57			CONT.
BATT	1		3	MT +B					Q117,118
		IC652
M601		2
										REG
OPEN/CLOSE									9V
										Q119
MOTOR
	3	MOTOR	11		98 MOT+
	14	DRIVE
		IC651 6			97 MOT–
	16
		12
				VREF	MT +B
				CONT.
			Q651,652				BEEP
					40 FPCRTL	BEEP 15
							DRIVE		BZ501
							Q502

		VOLTAGE CHECK
				IC102
CD 6V	REG		2		1
CD 5V	Q114,115
BATT	REG			BU 5V
	Q113,116

RX (SI)

FL SW

I	I	96 I DET
3 DET 7	DET
IC650	Q650

POWER

CONT. BATT

DC/DC CONV. Q101,102

	97 98 99 100
LCD1	INH CE2	CLK DATA	LCD DRIVER
	SW2LED	DIMMER
			IC1
	84	86
LCD 9V	POWER		DIMMER
	CONT.		CONTLROL
	Q1,2		Q3

	SW1001		OPEN SW
	(OPEN/CLOSE)	100
D903		99	CLOSE SW
(DISC IN)
LED
DRIVE	SW1002
Q901,902		101	CENTER SW	SHIFT 37	SHIFT
	(CENTER)
					Q105
		69	FLASH W
	LSW60
	OPEN	61	OPEN KEY
(DISPLAY BOARD)		62	NOSE SW
	S1	64	DETACH SW
	DETACH

CONTROL

IC101

9
VCC	ON/OFF
OUT1 7		CD 6V
	DRIVE
	Q103
INA1 3
2 RT	ON/OFF	9V
OUT2 10	DRIVE
	Q106
INA2 14

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