Read Sony CDX-CA680N Service Manual online
14
14
CDX-CA680N
J1
(ANTENNA)
1 ANT
CDL
CDR
R-CH
3
R-CH
9
RDS
16
9
10
8
MPX
VDD
RDS DEMODULATOR
IC51
SDA
SCL
DAVN
4 OSCO
5 OSCI
AUDIO 8.3V
TUNER UNIT
TU1
6
S-METER
14
TU-SDA
SYSTEM CONTROL
IC501 (2/3)
67
ACCIN 38
TELATT 40
STB 69
BEEP 35
AUDIO OUT FRONT
CD
SECTION
A
3
-1
11
CN601
1
9
FL+
FL-
2
10
RL+
RL-
4
12
13
7
FR+
FR-
15
RR+
RR-
TEST
ACC
ATT
16 +B(BATT)
8 GND
R-CH
F901
10A
TU-ATTIN
QUALITY
NS-MASK
BATT
BATT
17
19
18
BATT
L
R
-2
R-CH
BUS INTERFACE
IC580
13
12
8
9
11
13
3
E2P_CKO
86
VSM
13
TU-SCL
ATT
BATT
68
TESTIN
DIAG
37
2
VOLATT
70
SOUND CONTROL
ELECTRONIC VOLUME
IC401
VCC 22
BUS-LCH
5
CD-LCH
9
TV-LCH
7
SDA
SCL
MUTE
CONT.
EVR
25
I2C_SIO
I2C_CKO
45
47
17
E2P-SDA
16
E2P-SCL
5
QUALITY
8
MUTE-CONDITION
7
TU-MUTE
11
TU-VDD
10
VCC(8.3V)
27
87 E2P_SIO
DAVN
85
30
TU-ATT
88
6
DATA I/O
4
CLK
2
CLK
3
CLK
CN580
BUS
CONTROL IN
R-CH
1
25
29
BUSON
6
5
4
3
8
7
2
1
BUS AUDIO IN
-3
J330
L
R
-4
R-CH
AUDIO OUT REAR
-1
L
R
-2
R-CH
BUSON
DATA OUT
CLK IN
B/U-C
B/U-C
DATA IN
B/U-C
5 ANP-R
27
35
37
34
33
31
30
6 ANT-R
BEEP
STB
4
SCL
2
SDA
CONT.
9
7
6
20
POWER AMP
IC750 (1/2)
MULTIPLE VOLTAGE
REGULATOR
IC750 (2/2)
AUDIO 8.3V
VP2
VP1
VP1
• Signal path
: FM
: CD
• R-ch is omitted due to same as L-ch.
12
SYSRST 24
BUSON 25
UNISI 43
UNICKO 44
UNISO 42
BU IN 28
4
L-CH
OUT
-FL
19
OUT
-RL
18
+5V REG.
Q1
OVER VOLTAGE
DET.
Q580,D580,581
LINE MUTE
CONTROL
Q478,479
TEL
ATT
ATT
Q651
I2C
BUS
ACC
DETECT
Q631
MUTE
Q441
MUTE
Q461
11
MUTE
TONE
INPUT SELECTOR
EFFECT
Q22
X51
4.332MHz
5
3
DIAG
AMP-REM
ANT-REM
B.UP+B
PANEL+B
MECH 6V
SERVO 5V
AUDIO 8.3V
B.UP+B
PANEL+B
MECH 6V
SERVO 5V
AUDIO 8.3V
SERVO 5V
AUDIO 8.3V
VP
D759
D760
MUTE
16
22
I2C
BUS
27
26
2-3. BLOCK DIAGRAM — TUNER SECTION —
(Page 13)
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