Sony CDX-GT572 - Block Diagram -Display Section

CDX-GT572
CDX-GT572
1818
5-2. BLOCK DIAGRAM – DISPLAY Section –
KEY ACK
ENABLE
Q501
LED DRIVER
Q589,590
40
28
29
27
41
52
76
SYSTEM CONTROL
IC501 (2/2)
REMOTE CONTROL
SIGNAL RECEIVER
IC971
KEYIN1
71
RC_IN1
RC1
RC0
D501
43
RC_IN0 LCD_SO
LCD_CKO
LCD_CE
46
DOOR_IND
64 3
SIRCS OUT
KEYIN0
48
RE_IN1
RE-0
DOOR_SW
RE-1
47
RE_IN0
XOUT
XIN
KEY ACK
AD_ON
70
DOOR_SW
7
NOSE_SW
LED201
(DISC IN)
LED202
KEY MATRIX
S901–915
VOLUME
CONTROL
DIAL/
SELECT
BUTTON
RE901
ROTARY
ENCODER
J370
REMOTE
IN
()
CN201CN901
1414
+
80
79
X501
32.768kHz
OSCIN
OSCOUT
83
82
X500
18.432MHz
S201
;
MAIN
SECTION
A
3
AREASEL2
S102
(FRONT PANEL DETECT)
LCD DRIVER/LED CONTROL
IC901
CL
CE
77
78
76
80
COM1
I
COM4
LCD901
LIQUID
CRYSTAL
DISPLAY
PANEL
3
|
64
65
|
68
S1
I
S62
DIMMER
DI
LED930,931
()
LCD BACK
LIGHT
LCD BACK LIGHT
DIMMER CONTROL
Q901
;
S501
FREQUENCY
SELECT
()
+3.3V
FM(200k)
MW(10k)
FM(50k)
MW(9k)
DISP+B
R994
()
D946,949,
951–966,993
KEY
ILLUMINATION
(Page 17)