Sony CDX-4000X / CDX-4005 / CDX-4800X Service Manual ▷ View online
17
• IC801 MN101C49KTB (SYSTEM CONTROL) (MAIN BOARD)
Pin No.
Pin Name
I/O
Pin Description
1
VREF–
—
Ground for A/D converter power supply
2
S METER
I
S meter voltage detect signal input
3
FM AGC
I
FM auto gain control signal input
4
KEY IN1
I
KEY signal input
5
KEY IN0
I
KEY signal input
6
DSTSEL
I
4000X/4005: Not used. 4800X: Frequency select signal input
7
RC IN0
I
Rotary commander signal input
8
FUNC SEL
I
Model function selection pin
9
NIL
—
Ground
10
VREF+
—
A/D converter power supply
11
VDD
—
Power supply (+5 V) input pin
12
OSC OUT
O
High speed clock signal output (18.432 MHz)
13
OSC IN
I
High speed clock signal input (18.432 MHz)
14
VSS
—
Ground for power supply
15
XI
I
Low speed clock signal input (32 kHz)
16
XO
O
Low speed clock signal output (32 kHz)
17
MMOD
—
Not used. (Fixed at “L”.) Memory mode select signal input
18
RC IN1
I
Rotary commander shift key signal input
19
SYSRST
O
System reset signal output
20
BUS ON
O
Bus on control signal output
21
LCD DATA
O
LCD serial data signal output
22
LCD CE
O
LCD chip enable signal output
23
LCD CLK
O
LCD serial clock signal output
24
ILL ON
O
Illumination power supply control signal output
25
DOOR IND
O
Control signal output for power on sub panel when open to front panel
26
KEY ACK
I
Key active interrupt detect signal input
27
NOSE
I
Front panel attachment detection input
28
BU IN
I
Back up power supply setect signal input
29
SIRCS
I
Remote control signal input
30, 31
NC
—
Not used. (Fixed at “L”.)
32
RAM
—
Not used.
33
RESET
I
Reset signal input
34
NC
—
Not used.
35
BEEP
O
Beep signal input
36
NC (FUNC SEL)
I
Model function selection pin
37
NC (FUNC SEL)
I
Model function selection pin
38 – 40
NC
—
Not used.
41
UNI CLI
I
Bus system serial clock signal input
42
UNI SO
O
Bus system serial interface signal output
43
UNI SI
I
Bus system serial interface signal input
44
UNI CLO
O
Bus system serial clock signal output
45
SDA
I/O
I2C bus serial data signal input/output
46
NC
—
Not used.
47
SCL
O
I2C bus serial clock signal output
48, 49
NC
—
Not used.
50
LOCK
I
Check when remove to lock of MDNO CLV SERVO
51 – 63
NC
—
Not used.
64
ACC IN
I
Accessory power supply voltage detection input
65
TEL MUT
I
Telephone attenuate detect signal input
66
TEST IN
I
Test mode setting detect first stage signal input
67
ANT CUT
—
Not used.
68
NC
—
Not used.
18
Pin No.
Pin Name
I/O
Pin Description
69
AMP ON
O
Power supply on/off control signal output
70
MUT
O
System attenuate control signal output
71
AMP MUT
O
Power amp attenuate control signal output
72
VOL MUT
O
Mute control signal output for electrical volume
73
TU ON
O
Tuner attenuate signal output
74
EEP SDA
I/O
Tuner EEPROM serial data signal input/output
75
EEP SCL
O
Runer EEPROM serial clock signal output
76
IF BW
I
Not used.
77
NC
—
Not used. Tuner switch VCO level shift signal input
78
NC
—
Not used.
79
REIN1
I
Rotary encoder signal input
80
REIN0
I
Rotary encoder signal input
81
AD ON
O
Power control output for A/D conversion
82 – 92
NC
—
Not used.
93
OPEN
I
Front panel open/close condition signal input
94 – 98
NC
—
Not used.
99
PW ON
O
System power supply control signal output
100
NC
—
Not used.
19
19
CDX-4000X/4005/4800X
3-2. BLOCK DIAGRAM — CD SECTION —
(Page 20)
(Page 20)
04
I-V
CONV.
FOCUS
ERROR
DIGITAL
CLV
SUB
CODE
PROCESS
TRACKING
ERROR
LD
DRIVE
Q101
FOCUS
COIL
DRIVE
RF
EQ
EQ
EFM
DEM
D/A
I/F
D/A
CONV.
RFO
RFAC
LOUT1
FE
TE
SE
RFDC
FFDR
FRDR
TFDR
SFDR
SRDR
MDP
TRDR
TE
FE
E
D
B
C
A
F
11
10
PD
4
LD
3
7
6
8
13
14
16
LD
AMP
LD ON
HOLD SW
AGC CONT
22
21
20
5
RF AMP, LD APC,
ERROR AMP
IC1
DIGITAL SERVO,
DIGITAL SIGNAL PROCESSOR
IC501
TRACKING/FOCUS COIL DRIVE
SLED/SPINDLE/LOADING MOTOR DRIVE
IC7
10
11
22
21
TRACKING
COIL
DRIVE
8
9
25
24
SLED
MOTOR
DRIVE
6
7
31
32
32
FOCUS
COIL
TRACKING
COIL
M902
SLED
MOTOR
SPINDLE
MOTOR
DRIVE
12
13
18
M901
SPINDLE
MOTOR
LOADING
MOTOR
DRIVE
5
4
1
2
34
35
M903
LOADING
MOTOR
MUTE 1
MUTE 2
42
43
40
41
38
39
35
52
51
50
61
92
LOUT2
95
SQSO
6
SQCK
7
SCOR
MD2
24
73
XRST 11
DATA 13
DATA 13
XLAT 14
SCLK 17
CLOK 15
SENS 16
SENS 16
GFS 22
FOK 32
FOK 32
XTALI 86
XTALO 87
LOCK
34
54
SERVO
CTL
X2
16MHz
SW4
(LIMIT)
SW1
(DISC IN)
SW3
(LOAD IN)
BATT
SW2
(SELF)
CD MECHA ON
SWITCH
Q903, 913
CD ON
SWITCH
Q701, 702
+11V REG
Q920
CD +6V
REG
Q922
CD +5V
REG
Q703
CD +5V
CD +6V
LM EJ
69
LM LOD
66
SLED –
40
DRIVE ON
70
LD ON
20
HOLD
22
AGC CONT
23
CD ON
18
CDM ON
17
SSTP
11
FOK
54
GFS
55
SENS
57
CD CKO
65
SCLK
45
CD XLAT
68
CD DATA
67
CD RST
21
MD2
71
SCOR
64
SCK2
(DISPLAY BOARD)
48
SI2
49
LOCK
CD L
R-CH
46
D SW
10
IN SW
64
SELF SW
63
CD SYSTEM CONTROL
IC5
SYSTEM CONTROL
IC801 (1/3)
BUS CLK 51
A MUT 19
OPEN 6
BUS SO 53
BUS SI 52
X IN 31
X OUT 32
X1
10MHz
TUNER
SECTION
A
ATT
TUNER
SECTION
B
BUS ON 61
RESET 30
BU IN 60
S900
(RESET)
RESET
3
1
IC902
BU 5V
BATT CHECK
Q917,918
RESET
33
BU IN
28
SYS RST
19
BUS ON
20
UNI SO
42
UNI SI
43
UNI CLO
44
UNI CLI
41
OPEN
93
MUT
70
BATT
A
C
B
D
E
F
PD
LD
OPTICAL PICKUP
KSS-720A
• Signal path
: CD
20
20
CNJ600
(ANTENNA)
2
10
1
ANTFM
MPX
CDL
8
AM DET
19
AM IF
14
S-METER
12
SDA
13
SCL
4
FM AGC
16
VDD (5V)
11
IF BW
5
VDD (8V)
17
SDA (EEP)
18
SCL (EEP)
ANTAM
TUNER UNIT
TU601
2
45
47
72
12
14
15
20
21
18
11
13
1
3
30
SYSTEM CONTROL
IC801 (2/3)
ELECTRONIC VOLUME
IC701
AUX L
OUT LF
29
OUT LR
35
BEEP
69
AMP ON
71
AMP MUTE
65
TEL MUT
64
ACC IN
CD L
MPX
AM
AM IF
LEVEL
MPIN
SDA
SCL
MUTE
VOL MUT
S-MRTER
SDA
SCL
FM AGC
TU +8V
BACKUP +5V
TU +5V
EEP SDA
EEP SCL
R-CH
L
R
AUDIO OUT REAR
CD
SECTION
A
MUTE
SWITCH
Q401, 402
Q102
MUTE
Q101
MUTE
–3
–4
R-CH
L
R
AUDIO OUT FRONT
–1
–2
ATT
CD
SECTION
B
22 MUTE
AUX IN
4 STAND BY
11
16
12
5
3
9
8
POWER AMP
IC101
1
9
2
10
CNP501
FL+
FL–
RL+
RL–
4
12
FR+
FR–
3
11
RR+
RR–
16 BATT
13 ATT
5 AMP REM
6 ANT REM
R-CH
BATT
F901
TEL
MUTE
Q916
7 ACC
15 TEST
99
73
PW ON
25
DOOR IND
66
TEST IN
ACC
CHECK
Q905
TU +8V
REG
Q602
COM +8V
REG
Q904
TU +5V
REG
Q601
BATT
CHECK
Q906
POWER SUPPLY
IC901
1
TU ON
4
2
BATT
BATT
BATT
VCC
AMP +B
5
BU +B
3
GND
AMP ON
PULL UP +5V
BACKUP +5V
TU +8V
TU +5V
3
04
75
74
AMP +B
SWITCH
Q921
COM +8V
TU ON
SWITCH
Q902
TU ON
SWITCH
Q603
PW ON
SWITCH
Q919
DOOR IND
SWITCH
Q908
Q907
6
DSTSEL
FM 50k
AM 9k
FM 200k
AM 10k
4800X
SW802(FREQUENCY SELECT)
PJ400
• Signal path
: FM
: AM
: CD
: AM
: CD
3-3. BLOCK DIAGRAM — TUNER SECTION —
(Page 19)
(Page 19)
CDX-4000X/4005/4800X
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