A SERVICE OF

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3636
CDX-M620/M670
BUS SI
BUS CLK
BUS ON
BU CHECK
LINK OFF
SIRCS
D70
D908
S RST
UNI SO
BUF
IC701
7
IR
RECEIVE
IC62
7
IR
RECEIVE
IC901
7
16
16
6
LCD DRIVER
IC60
100
9997 98
100
9997 98
86
X701
18.432MHz
INH
CLK
DATA
CEO
INH
CLK
DATA
CE1
DIMMER
85
LED SW1
85
86
XTAL
LINK OFF
SYS RES
BU IN
BUS ON
UNI CKI
UNI SI
UNI SO
EXTAL
66
CEO
69
INH
64
CKO
70
52
CEI
71
CE2
LCD9V
ILL ON
9V
62
RX
46
LED SW1
47
LED SW2
57
BOOT
SA CLK
SA IN
60
LCD SO/TX
POWER
CONT.
Q109,112
VREF
CONT.
Q651,652
I
DET
Q650
SHIFT
Q105
POWER
CONT.
Q101,102
POWER
CONT.
Q117,118
LED
DRIVE
Q901,902
REG
IC652
MT +B
KEY IN
MATRIX
AD ON
SW
Q501
BATT
BU 5V
SA OUT
SA CLK
9V
CD 6V
LCD 9V
MT +B
FLASH W
CLOSE SW
RT
INA1
SHIFT
OPEN SW
I DET
FPCRTL
MOT
MOT+
FLSWPWON
TX
RX
LED SW1
LED SW2
BOOT
BATT
CD 6V
BZ501
98 1
101
112
38
34
81
50
97
SUB SYSTEM CONTROL
IC702
CD
SECTION
2
LCD1
LCD60
LCD DRIVER
IC61
9897 99
84
INH
CE2
CLK
DATA
LED SW2
86
DIMMER
CN902
POWER
CONT.
Q1,2
LCD 9V
DIMMER
CONTLROL
Q3
ILL ON 9V
TX (SO)
RX (SI)
FL SW
1 3
I
DET
IC650
3 7
2
MOTOR
DRIVE
IC651
3
14
16
11
6
12
SW1001
(OPEN/CLOSE)
40
96
99
37
BEEP
DRIVE
Q502
BEEP
ON/OFF
DRIVE
Q103
15
CD ON
MD ON
DDC ON
57
9V
ON/OFF
DRIVE
Q106
BU 5V
VOLTAGE CHECK
IC102
2 1
69
CENTER SW
100
101
82
KEY IN1
47
KEY IN0
46
RC IN1
72
KEY ACK
79
AD ON
80
RC IN0
48
12
115
116
106
13
98
97
2
3
OUT1
7
9
OUT2
10
INA2
14
VCC
DC/DC CONV.
CONTROL
IC101
CD 5V
REG
Q119
REG
Q114,115
BATT
REG
Q113,116
SYSTEM CONTROL
IC501 (3/3)
TUNER
SECTION
3
J651
(REMOTE IN)
M601
OPEN/CLOSE
MOTOR
CD
SECTION
1
100
SW1002
(CENTER)
OPEN KEY
61
LSW60
OPEN
(DISPLAY BOARD)
DETACH SW
64
S1
DETACH
NOSE SW
62
D903
(DISC IN)
LCD DRIVER
IC1
POWER
CONT.
Q60,61
LCD 9V
DIMMER
CONTLROL
Q62
LCD
AEP,UK,E
4-5. BLOCK DIAGRAM — DISPLAY SECTION —
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