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Q Q
3 7 6 3 1 5 1 5 0
3-3. BLOCK DIAGRAM — DISPLAY SECTION —
KEY MATRIX
S900-908,
910-922
KEY ACK
D501
SWITCH
Q664
J561
(REMOTE IN)
PANEL+10V
1
VCC
OUT
2
REMOTE CONTROL
SIGNAL RECEIVER
IC971
RESET
IC602
VDD VOUT
BACKUP +3.3V
2
1
MAIN
C
RESET
SECTION
T E
L
1 3 9 4 2 2 9 6 5 1 3
(Page 14)
S961
(DOOR)
X502
32.768kHz
w w w
CDX-R3350/R3350C
SYSTEM CONTROL
LCD DRIVER
IC501 (3/3)
IC901
KEYIN0
41
LCDSO
28
64
DATA
DI
4
LCDCKO
29
63
CL
CLK
SEG4
40
KEYIN1
I
LCDCE
CE
CE
27
62
I
50
SEG51
•
55
52
KEYACK
51
COM4
I
I
COM1
54
76
XKEYON
LED
RCIN1
DIMMER
1
DRIVE
71
Q901
43
RCIN0
LED
DRIVE
AMBER
2
Q902
64
SIRCS
LED
3
DRIVE
GREEN
Q903
R3350C
77
RESET
S702
RESET
70 RETRA SW
OSCOUT
82
X501
18.432MHz
OSCIN
83
79
XIN
80
XOUT
x
a o
y
.
i
http://www.xiaoyu163.com
3-4. CIRCUIT BOARDS LOCATION
LCD
LCD901
LED932
LCD
(
)
BACK LIGHT
LED902-908,
910-922,961
LED
(
)
ILLUMINATION
R3350
Q
Q
3
7
6
u 1 6 3
.
15
15
http://www.xiaoyu163.com
2
4
8
9
9
SERVO board
SENSOR board
KEY board
3
1
5
1
5
0
8
9
2
m
c o
CDX-R3350/R3350C
2
8
9
9
tuner unit
(TU1)
MAIN board
4
9
8
2
9
9
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