Sony CDX-4480ESP Service Manual ▷ View online
– 25 –
Pin No.
Pin Name
I/O
Pin Description
56
AMP ON
O
Power amplifier power control output
57
XMODE
O
Reset output to CD-TEXT decoder IC. (Not used in this set.)
58
VOL SO
O
Main volume serial data output
59
VOL CKO
O
Main volume serial clock output
60
AU MUTE
O
System attenuate control output
61
AF MUTE
O
Attenuate output at AF operation of RDS. (Not used in this set.)
62
TU MUTE
O
Tuner attenuate output (Not used in this set.)
63
VSS
—
GND
64
ACC IN
I
Accessory power detection input
65
AF SEEK
O
AF operation control output of RDS. (Not used in this set.)
66
M SIO
I/O
EEPROM serial data input/output (Not used in this set.)
67
DAVN
I
RDS IC data taking in detection input
68
M CK
O
EEPROM serial clock output (Not used in this set.)
69
M CE
O
EEPROM chip enable output (Not used in this set.)
70
RDS SI
O
RDS serial data input (Not used in this set.)
71
RDS CKI
O
RDS serial clock input (Not used in this set.)
72
RC IN1
I
Rotary commander shift key input
73
X1A
—
Low speed oscillation input 1
74
X0A
—
Low speed oscillation input 0
75
SCOR
I
SCOR signal detection input (Connected to GND.)
76
BU-IN
I
Back-up power detection input
77
DQSY
I
CD-TEXT data set complete signal detection input (Connected to GND.)
78
CD SENS
I
CD SENS signal detection input (Connected to GND.)
79
KEY ACK
I
Key input detection input at power OFF.
80
TEL MUTE
I
Telephone attenuate detection input
81
ST IN
I
Tuner stereo signal detection input
82
SEEKOUT
O
MW/LW SEEK output
83
SD IN
I
Signal detector input
84
MONO
I
Not used in this set.
85
PLL CE
O
PLL chip enable output
86
H
—
Hardware standby input
87
VSS
—
GND
88, 89
VCC
—
Power supply pin (+5 V)
90
RESET
—
Reset input
91
VSS
—
GND
92
X0
—
High speed oscillation input 0
93
X1
—
High speed oscillation input 1
94
VCC
—
Power supply pin (+5 V)
95
PW SEL
I
Power select initial setting input
96
POL MONO
I
Not used in this set.
97
AREA1
I
Destination select input 1 (Fixed at “L” in this set.)
98
AREA2
I
Destination select input 2 (Fixed at “H” in this set.)
99
AREA3
I
Destination select input 3 (Fixed at “L” in this set.)
100
BAND (9K/10K)
I
Band plan setting general area
101
POL ST
I
Not used in this set.
102
NIL
I
Connected to GND.
103
NIL
I
Connected to GND.
104
LCD CE
O
LCD chip enable output
105
NIL
I
Fixed at “H” in this set.
106
RE0
I
Rotary encoder input 0
107
RE1
I
Rotary encoder input 1
108
LAMP ON
O
Illumination power control output
– 26 –
Pin No.
Pin Name
I/O
Pin Description
109
PW ON
O
System power control output
110
REGMOD1
O
FM ON output
111
REGMOD2
O
Tuner power control output
112
CTL1
O
Not used in this set.
113
CTL2
O
Driver IC control output (Not used in this set.)
114
FWD
O
Loading motor control output (Forward direction) (Not used in this set.)
115
REV
O
Loading motor control output (Reverse direction) (Not used in this set.)
116
L SW
I
Sled limit switch detection input (Fixed at “H” in this set.)
117
IN SW
I
Disc insertion detection input (Fixed at “H” in this set.)
118
D SW
I
Down switch detection input (Fixed at “H” in this set.)
119
VSS
—
GND
120
SELF SW
I
Disc self store detection input (Fixed at “H” in this set.)
4-2. CIRCUIT BOARDS LOCATION
LOAD SW board
SUB board
LIMIT SW board
SERVO board
MAIN board
DISPLAY board
DISC IN SW board
tuner assy
(TU1)
(TU1)
4-3. BLOCK DIAGRAM — CD SECTION —
– 27 –
– 28 –
CDX-4480ESP
59 RFDC
55 FE
57 TE
80 SSTP
89
PCMD
87
LRCK
85
WDCK
91
BCK
DIGITAL SERVO/
DIGITAL SIGNAL PROCESSOR
IC501
71 TFDR
72 TRDR
72 TRDR
73 FFDR
74 FRDR
69 SFDR
70 SRDR
79 MDP
3
PD1
4
PD2
7
E
6
F
17
RFO
16
FE
14
TE
CD5V
RF AMP, LD-APC ERROR AMP
IC1
OPTICAL PICK-UP
KSS-520A
2
PD
PD
LD
LD DRIVE
Q3
1
LD
19
LD ON
2
TR+
1
TR-
14 F+
13 F-
23
OP+
24
OP-
10
OP+
TRACKING
FOCUS
11
OP-
9
MUTE
20
OP+
19
OP-
OP IN+
OP IN-
TRACKING/FOCUS COIL DRIVE,
SLED MOTOR DRIVE
IC7
SPINDLE MOTOR DRIVE
IC601
16 S+
17 S-
M902
(SLED)
9
DATI
10 LRCI
11 WDCI
7
BCKI
16
15
17
17
DRAM CONTROLLER
IC2
20
|
23
•
25
•
34
|
38
33
XOE
32
XCAS
27
XWE
26
XRAS
A0-A9
D1-D4
45
SDTI
84
C4M
33
DOUT
28
SCOR
27
XROF
3
C4M
2
7
1
2
2
3
4
5
5
6
1
2
3
4
5
6
8
9
10
11
12
13
14
7
8
8
9
10
11
12
13
14
DIN
59 SCOR
4
XROI
20
WFCK
8
SQCK
CLOK
9
SQSO
1
WFCK
42 XWRE
43 WRDE
44 XLT
10
SENS
11
SCLK
24
GFS
37
FOK
47 XSOE
48 SDTO
57 XQOK
58 GSCR
12
DATA
63
46
14
GRST
SCK
25
RFCK
21
GTOP
5
RFCK
6
GTOP
3 DI
2 BCKI
1 LRCKI
MOD2
9
DOUT
CDINL
MOD2
MOD1
MOD1
10
BCKO
R-CH
DIGITAL FILTER
IC701
DRAM
IC4
11
15
MOD1
14
LRCO
6
RSTN
A0-A9
D1-D4
6 DI
5 BCKI
8
22
LRCKI
RSTN
DEEM
12
LO
14
RO
D/A CONVERTER
IC702
18
2
CKO
3
XTI
19
XTO
14
XTAI
LRCK
BCK
DATA
4
XRAS
3
XWE
23 XCAS
22 XOE
M
12 DROUT+
13 DROUT-
M901
(SPINDLE)
25
24
M
M903
(LOADING)
M
INVERTER
9
L+
7
L-
2
LMOT1
4
LMOT2
LOADING MOTOR DRIVE
IC6
X1
10MHz
SW4
(DOWN)
SW3
(LIMIT)
SW1
(DISC IN)
SW2
(SELF)
28
|
31
67 CD DATA
42 SCLK
54 FOK
55 GFS
16
43
44
44
CD SYSTEM CONTROL
IC5
57 SENS
65 SCK 2
66 SI 2
20 LD ON
62 IN SW
63 SELF SW
14 LM EJ
15 LM LOM
31 X IN
32 X OUT
17 CDMON
18 CD ON
9
DRV OE
10 D SW
45
GRSRST
ESPSDT
ESPXQOK
EMPH O
46
68
69
69
70
ESPXLT
ESPXRDE
ESPXWRE
GRSCOR
71
56
SCOR
ESPXSOE
19
59
61
52
BUS SI
BUS ON
AMUT
CD CKO
51
60
30
RESET
BU IN
BUS CLK
5
•
9
|
12
•
14
|
18
1
•
2
•
24
•
25
MD ON
SWITCH
Q910, 911
SWITCH
Q1, 5
BATT
TU+B
CD5V
MD5V
MD8V
BU5V
SWITCH
Q2, 4
MD5V
VC
BATT
8V REG
Q912
5V REG
Q913
5V REG
Q909
POWER
CONTROL
Q907, 908, 920
BATT
BUS SI
BUS ON
AMUT
RESET
BU IN
BUS CLK
53
BUS SO
21
CD RST
BUS SO
MAIN
SECTION
SECTION
2
Signal path
: CD
: CD
MAIN
SECTION
SECTION
1
XRST
64
15
XRST
04
X701
16.9344MHz
CD ON
TU ON
4-4. BLOCK DIAGRAM — MAIN SECTION —
– 29 –
– 30 –
CDX-4480ESP
: FM
: AM
: CD
Signal Path
2
18
37
34
36
38
16 17 18
1
ANT-FM
L-OUT
16
R-OUT
12
AM-DET
21
13
9
60
20
21
22
36
85
29
15
55
56
76
64
108
80
90
40
95
73
74
92
93
2
5
6
11
10
9
3
4
111
110
109
86
16
15
18
5
20
FM/AM IFC
RECEV/SEEK
11
NC
4
8
10
9
LOL/DX
LOL/DX
FM OSC
AM OSC
AM OSC
PD
X OUT
1
X IN
DIN
4
CLK
2
CE
6
DOUT
IF IN
11 FM IFC
POL MO
10 NC
6
VCO
5
VT
22
ST IND
20
SD
19
S-METER
ANT-AM
FM+B
AM+B
TU+B
LPF
Q607
REG
Q606
ANT+B
COM8V
FM8V
PLL
IC602
X601
7.2MHz
FM8V
AM8V
D601, 602
TU+B
CNJ600
(ANTENNA)
TUNER UNIT
TU1
R-CH
5V REG
Q601
ANT+B
TU5V
L3
L2
L1
33
28
27
23
22
21
20
12
5
3
8
7
11
22 4
CL
DI
CE
TONE
ELECTRONIC VOLUME
IC401
MUTE
STBY
POWER AMP
IC402
CNP501
FL
RL
1
9
2
10
FL+
FL-
RL+
RL-
7
16
13
15
ACC
BATT
ATT
TEST
5
AMP REM.
6
ANT REM.
L REAR
L FRONT
-1
-3
LINE OUT
PJ400
Q101
Q102
LINE MUTE
SWITCH
Q401, 402
AMUT
BUS SO
BUS SI
BUS CLK
BUS ON
RESET
BU IN
BU IN
BACK-UP CHECK
Q916, 917
ACC CHECK
Q904, 905
8V REG
Q903
ILL SWITCH
Q901, 902
RESET
IC902
COM8V
COM5V
1
2
S900
RESET
Q930
D909
D908
D910
D916
Q906
Q651
S801
(POWER SELECT)
OFF
ON
S802
(FREQUENCY SELECT)
AM 10k
FM 200k
AM9k
FM50k
X801
32.768KHz
X800
3.68MHz
COM8V
COM 8V
AM 8V
FM 8V
FM 8V
BU+B
MODE2
MODE1
STB
COM5V
PLL5V
AM8V
FM8V
BU+B
D904
D905
AMP+B
7
VCC
8
ANT+B
POWER SUPPLY
IC901
F901
10A
2
CD
SECTION
1
CD
SECTION
D401,404
AU MUT
UNI SI
UNI SO
UNI CK
BUS ON
PLL CE
12 NOSE/FI
81 ST IN
83 SD IN
83 SD IN
53 S-METER
13 LCD SO/FO
14
14
64
63
62
1
3
LCD CKO
104 LCD CE
24 SIRCS
11 PLL CKO
10 PLL SO
9 PLL SI
31 DBMOD1
16 DBMOD2
58 VOL SO
59 VOL CK
41 VOL CE
SYSRST
BEEP
AMP MUTE
AMP ON
BU IN
ACC IN
LAMP ON
100
BAND(9k 10k)
TEL MUTE
H
RESET
TEST
PW SEL
X1A
X0A
X0
X1
REGMOD2
REGMOD1
PW ON
DATA
CLK
CE
LCD DRIVE
IC801
LCD801
IR
RECEIVER
IC802
106
107
RE0
RE1
ROTARY
ENCODER
RE801
48
47
KEY IN2
KEY IN1
79
43
KEY ACK
AVRH
46 KEY IN0
72
49
RC IN1
RC IN0
37 AD ON
PL801,
802
LED801-805
LSW801,
803-819
LSW801,
803-819
KEY MATRIX
LSW801, 803-819
S802
KEY ACTIVE
SWITCH
Q801, 802
S801
D-BASS
CNP802
(REMOTE IN)
D824
D825
SYSTEM CONTROL
IC801
MOD1
MOD2
CDINL
ANT+B
04
D826
3 2 1 OFF
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