CDX-GT250MP, CDX-GT257ME, CDX-GT25MPW, CDX-GT300MP, CDX-GT303MP, CDX-GT30MP, CXS-3016F - Sony Car Audio Service Manual (repair manual). Page 16

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CDX-GT25MPW/GT30MP/GT250MP/GT257ME/GT300MP/GT303MP
CDX-GT25MPW/GT30MP/GT250MP/GT257ME/GT300MP/GT303MP
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16
4-2.  BLOCK  DIAGRAM  – DISPLAY Section –
X502
32.768kHz
10
11
94
1
2
100
95
SYSTEM CONTROL
IC401 (2/2)
LCD DRIVE
IC903
KEYIN1
CL
CE
LCD_SO
LCD_CLK
LCD_CE
KEYIN0
92 KEYACK1
82 RE_N0
RE0
RE1
81 RE_IN1
18
97
91
XOUT
XIN
X501
7.92MHz
15
13 OSCOUT
3 NOSE_SW
OSCIN
47
48
46
DIMMER 2
COM1
I
COM4
LCD901
LIQUID
CRYSTAL
DISPLAY
PANEL
3
|
34
‡
39
35
|
38
S1
I
S33
DI
PANEL+B
KEY MATRIX
LSW901–908
S901–908 
(VOLUME)
PUSH SELECT
S905
ROTARY
ENCODER
4 SIRCS
REMOTE
CONTROL
SIGNAL
RECEIVER
 IC902
BACK-LIGHT 1
BACK LIGHT
LED DRIVE
Q932
DIMMER
SWITCH
Q931
LED901,903,905,907,909
911,913,915,917,919
921,923,925,927,933
935,937,945,
LSW901–908
LED931
(LCD BACK LIGHT)
3
OUT
RC_IN1
RC_IN0
KEYACK0
J801
(REMOTE IN)
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