Read Sony CDX-GT400 / CDX-GT40W / CDX-GT450 / CDX-GT450S Service Manual online
19
19
CDX-GT40W/GT400/GT450/GT450S
CDX-GT40W/GT400/GT450/GT450S
3-3. BLOCK DIAGRAM — KEY SECTION —
3-4. CIRCUIT BOARDS LOCATION
KEY
ACKNOWLEDGE
SWITCH
Q501
82
83
41
28
29
27
40
52
76
71
43
DISPLAY
CONTROL
IC901
KEYIN0
CLK
CE
LED_SO/FLS_SO
LCD_SCK
LCD_CE/FLS_SI
DIMMER
KEYIN1
KEYACK
XKEYON
RC_IN1
RC_IN0
3 AREASEL0
NOSE_SW
2 OUT
OSCIN
OSCOUT
X500
18.432MHz
S801
77
78
76
1
COM1
COM4
LCD901
LIQUID
CRYSTAL
DISPLAY
PANEL
LED930,931
LCD
BACK LIGHT
D510
S501
FREQUENCY
SELECT
10K
9K
J370
(REMOTE IN)
BU+3.3V
GT450/GT450S MODEL
7
|
60
65
|
68
|
S1
S54
|
CL
DI
CE
DISP+B
LSW901,903-905,907-910,
LED902,911-924
(KEY ILLUMINATE)
LED801,802
(DISC IN/
Z
)
(
)
KEY MATRIX
LSW901,903-905
LSW907-910
S902,911-920
48
47
SYSTEM CONTROL
IC501 (3/3)
RE-0
RE-1
79
80
XIN
XOUT
X501
32.768KHz
DIMMER
SWITCH
Q916-918
LED
DRIVER
Q911-915
ROTARY
ENCODER
7
S102
(FRONT PANEL DETECT)
CN801
CN901
REMOTE CONTROL
SIGNAL RECIVER
IC971
DOOR INDICATOR
B+ SWITCH
Q589,590
DIMMER
2
GREEN1
3
GREEN2
4
BLUE
79
AMBER1
80
AMBER2
46
DOOR IND
64
SIRCS
IR
Z
RE901
PUSH SELECT
(VOLUME)
DOOR SW
MAIN
SECTION
C
18
18
+
MAIN board
SUB board
SENSOR board
SERVO board
JACK board
KEY board
tuner unit
(TU1)
(TU1)
(Page 18)
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