Block Diagram - Display Section - Sony CDX-GT40U Service Manual

CDX-GT40U/GT40UW/GT42UE/GT44U/GT45U/GT47UE
Ver. 1.4
CDX-GT40U/GT40UW/GT42UE/GT44U/GT45U/GT47UE
4-2. BLOCK DIAGRAM – DISPLAY Section –
SYSTEM CONTROL
IC501 (2/2)
KEYIN1
KEY MATRIX 94
LSW905–912,
S901–907 95 KEYIN0
LCD_CLK
92 KEYACK1
RE901
PUSH ENTER/SELECT
(VOLUME)
ROTARY
RE0
82 RE-IN0
ENCODER
RE1
81 RE-IN1
18 RC_IN1
J801
97 RC_IN0
(REMOTE IN)
91 KEYACK0
10 XIN
X502
32.768kHz
11 XOUT
SYNC_OUT
15 OSCIN
X501
7.92MHz
13 OSCOUT
REMOTE
CONTROL
3 4 SIRCS
SIGNAL
FLT_USB
RECEIVER
IC902
3 NOSE_SW
BU+3.3V
LCD CONTROL
IC901
5
|
SEG48
50 LCD901
I
55
SEG1
LCD_SO 1 64 DATA LIQUID
60
CRYSTAL
2 63 CLK LCD
DISPLAY
LCD_CE 100 62 CE
PANEL
COM4 51
I
|
COM1
54
(N
DIMMER
DIMMER 1 SWITCH
Q905
BACK-LIGHT 2
COLOR 1 3
USB VBUS POWER SUPPLY
IC1300
3 VIN
BATT USB_OUT
5
8 SYN/EN
26
4 EN_SYS
EN_SYS 53
EN_USB 12 EN_USB
50
9 FLT_USB
52
+1.5V REG
IC681
1
CE
5 VDD OUT 4 +1.5V
+1.5V REG
IC682
5 VDD OUT 4 +1.5V(VDDM)
22 22
PANEL+B
LED932,934,936,938,
LED901
940,942,944,946,
(LCD BACK LIGHT)
950,952,954
LSW905 (1/2)–LSW912 (1/2)
)
Q901
Q903
LCD BACK LIGHT
LED
DRIVE
DRIVE
CD SERVO,USB CONTROL
IC601(2/2)
80 X1
USB+ 85
X601
USB- 86
12MHz
82 X2
RESET 3
SWCLK 62
72 CPON
SWDIO 61
73 CDON_15V
Note 1: Refer to "ABOUT CHANGE OF THE LCD DRIVER IC (IC901)
ON THE KEY BOARD" on page 7 for how to distinguish New type.
Note 2: CN601 has been deleted in the midway of production.
S P
: USB
VBUS
CN902
1
D+
3
D–
2
4
(USB)
CN601
SYS_RST
2
SWCLK
3
SWDIO
4