Sony Ericsson XR-C7500RX service manual Block Diagram DISPLAY/KEY Control Section, Remote

XR-C7500R/C7500RX

7-3. BLOCK DIAGRAM – DISPLAY/KEY CONTROL Section –

J520

REMOTE IN

D520	LSW801,901–917,
	S901 – 904		ROTARY		RE901
			ENCODER		VOLUME/BALANCE/
			RE901		FADER CONTROL
			D580
						KEY ACTIVE		S600	LED801	LED DRIVE
						SWITCH	B/U +5V	(NOSE DETECT)	(TAPE WINDOW),
						Q406, 407			LSW801	Q580
									Z
48 72	46	47	116	115	79	80		117		118
RCIN0 RCIN1	KEYIN0	KEYIN1	REIN0	REIN1	KEYACK	AD-ON		NOSE-SW		DOORIND
						SYSTEM CONTROLLER
						IC600 (3/4)

BATT B+

SA LAT

BOOT

RX

TX

X1

X0

X1A

X0A

4

106

12

13

93

92

73

74

CNP801

(XR-C7500R)

X601

X600

CN801

CN901

3.68MHz

32.768kHz

(XR-C7500RX)

FRONT PANEL SIDE

MAIN BODY SIDE

8

1

(Page 18)

G

DSPDATA,DSPCKO

X800

TRDT

SCK

RX

J

18.432MHz

(Page 20)

61 63 33

57

86

85

62

LCD B+

SP-SI

SP-SCK

SP-LAT

BOOT

EXTAL

XTAL

RX

LSW901 – 908,

LED910 – 915

LSW910 – 917

(LCD BACK LIGHT)

LIQUID CRYSTAL DISPLAY

DATA-TX/LCD

SCK-LCD

CE1-LCD

DRIVE CONTROLLER

IC800 (1/2)

60 64 66

LED

LED

LED DRIVE

DRIVE

DRIVE

Q903

Q902

Q901

(XR-C7500RX)

(XR-C7500RX)

C953, R957

OSC

100 99 98

96

85

84

86

LCD-DATA

LCD-CLK

LCD-CE

OSC

GREEN

AMBER

DIMMER

(XR-C7500R)

(XR-C7500R)

05

		LIQUID CRYSTAL DISPLAY DRIVER
SEG1 – SEG74	COM1 – COM8	IC901
1 – 74	83 – 76
LIQUID CRYSTAL DISPLAY
	LCD901

19 19