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3-4. BLOCK DIAGRAM — DISPLAY SECTION —
KEY MATRIX
S801
S901-907,
910-923
KEY ACK
D501
SWITCH
Q501
J561
(REMOTE IN)
IC971
REMOTE
3
RECEIVER
4
IC981
4
3
VLCD
PANEL +B
CONTROL
S102
(NOSE DET)
BU3.3V
X501
10K
9K
32.768kHz
S501
FREQUENCY
SELECT
CDX-F5500M
SYSTEM CONTROL
LCD DRIVER
IC500 (3/3)
IC901
KEYIN0
95
LCDSO
72
78
DATA
DI
LCDCKO
74
77
CLK
CL
SEG7-14
7-14
94
KEYIN1
LCDCE
CE
CE
73
76
SEG16-31
16-31
SEG33-64
33-64
LCD
LCD901
65
COM1
|
|
COM4
68
27
KEYACK
1 DIMMER
25
ADON
PANEL +B
20
RCIN1
96
RCIN0
LED901-907,
910-923
(
)
KEY
ILLUMINATION
83
SIRCS
PANEL +B
LED961,962
61 NOSE DET
(LCD BACK LIGHT)
DIMMER
CONTROL
Q961
53 AREA SELO
12
OSCOUT
X500
27.648MHz
15
XIN
OSCIN
13
16
XOUT
LED801
DOOR IND
(DOOR IND)
DOOR IND
69
CONTROL
LED802
Q101
( Z )
3-5. CIRCUIT BOARDS LOCATION
SENSOR board
KEY board
21
21
CDX-F5500M
SERVO board
tuner unit
(TU1)
MAIN board
SUB board
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