Sony CDX-M730 Service Manual ▷ View online
21
CDX-M730
3-6. CAM (R)
3-5. ARM (A-R) ASSY, ARM (B-R) ASSY
1
Move the arm (B-R) assy in the direction of the
arrow
arrow
A
and the arm (A-R) assy in the direction of
the arrow
B
fully (full open state).
2
Align the hole (large) on the cam (R) with part
C
and
install the cam.
4
Turn the cam (R) clockwise and counterclockwise to
verify that both the arms are operated.
verify that both the arms are operated.
bracket (R) assy
3
arm (A-R) assy
2
stop ring 1.5, type-E
4
stop ring 1.5, type-E
1
arm (B-R) assy
3
stop ring 1.5, type-E
5
damper, oil
6
screw (P 2x4)
cam (R)
B
A
C
arm (B-R) assy
hole(large)
line
arm (A-R) assy
22
CDX-M730
4-1. IC PIN DESCRIPTIONS
• IC801 MB90574CPMT-G-369-BNDE1 (SYSTEM CONTROL) (US, Canadian Model)
• IC801 MB90574CPMT-G-370-BNDE1 (SYSTEM CONTROL) (AEP, UK, E Model)
• IC801 MB90574CPMT-G-370-BNDE1 (SYSTEM CONTROL) (AEP, UK, E Model)
Pin No.
Pin Name
I/O
Pin Description
1
CD RESET
O
Servo CPU reset signal output to servo IC (IC1)
2
NCO
O
Not used. (Open)
3
A0
O
Servo CPU command/parameter discriminate signal output to servo IC (IC1)
4
NCO
O
Not used. (Open)
5
ATT
O
System mute control signal output
6
SYSRST
O
System reset signal output to bus interface (IC802)
7
STB
O
Servo CPU data strobe signal output to servo IC (IC1)
8
VCC
—
Power supply pin (+5 V)
9
XTAL EN
O
Servo CPU crystal oscillator control signal output to servo IC (IC1)
10
E2PSIO
I/O
EEPROM data signal input/output with tuner unit (TU601)
11
E2PCKO
O
EEPROM clock signal output to tuner unit (TU601)
12
FLS SI
I
Flash write-in data signal input
13
FLS SO
O
Flash write-in data signal output
14
BUS ON
O
BUS ON control signal output to sub system control (IC301)
15
BEEP
O
Beep signal output
16
TEL ATT
I
Telephone mute detect signal input
17
UNI SI
I
SONY BUS data signal input from bus interface (IC802)
18
UNI SO
O
SONY BUS data signal output to bus interface (IC802)
19
UNI CKO
O
SONY BUS clock signal output to bus interface (IC802)
and sub system control (IC301)
20
LIMIT
I
CD limit SW signal input (SW4)
21
PH1
I
CD PH1 detect signal input Not used in this set. (Open)
22
DSW
I
CD disc SW detect signal input (SW5)
23
IN/PH2
I
CD IN SW/PH2 detect signal input (SW6)
24
SIRCS
I
Remote control data signal input from sircs interface (IC803)
25
CD TSI
I
Servo CPU serial data signal input from servo IC (IC1)
26
CD TSO
O
Servo CPU serial data signal output to servo IC (IC1)
27
CD TCK
O
Servo CPU serial clock signal output to servo IC (IC1)
28
RF OK
I
Servo CPU RFOK signal input from servo IC (IC1)
29
TSTB
O
Servo CPU CD TEXT strobe signal output to servo IC (IC1)
30
NCO
O
Not used. (Open)
31
VOL ATT
O
Electronic volume mute signal output to electronic volume (IC305)
32
NCO
O
Not used. (Open)
33
VSS
—
Ground pin
34
C
—
Condenser pin for voltage stabilizer
35
SELF SW
I
CD self SW signal input (SW2)
36
PH3
I
CD PH3 detect signal input Not used in this set. (Open)
37
SHIFT
O
OSC frequency shift signal output for DC-DC converter (IC901)
38
DVCC
—
Power supply pin (+5 V)
39
DVSS
—
Ground pin
40
FP CTRL
O
Front panel open/close speed control signal output
41
NCO
O
Not used. (Open)
42
AVCC
—
Power supply pin (+5 V)
43
AVRH
—
Power supply pin (+5 V)
44
AVRL
—
Ground pin
45
AVSS
—
Ground pin
46
KEY IN0
I
Key signal input 0
47
KEY IN1
I
Key signal input 1
48
RC IN0
I
Rotary commander signal input 0
49
NCO
O
Not used. (Open)
SECTION 4
DIAGRAMS
23
CDX-M730
Pin No.
Pin Name
I/O
Pin Description
50
QUALITY
I
Tuner noise detect signal input from electronic volume (IC305)
51
FM AGC
O
FM auto gain control signal output to tuner unit (TU601)
52
MPTH
I
Tuner multi-path signal input from RDS decoder (IC601) (AEP, UK, E model)
53
VSM
I
S-meter signal input from tuner unit (TU601)
54
VCC
—
Power supply pin (+5 V)
55
AMP ON
O
AMP ON control signal output to power amp (IC903)
56
NS MASK
O
Tuner nose masking signal output (AEP, UK, E model)
57
DDC ON
O
DC-DC converter control signal output
58
LOAD
O
CD loading motor control signal output to loading motor drive (IC2)
59
EJECT
O
CD eject motor control signal output to eject motor drive (IC2)
60
BUS/AUX
O
BUS/AUX audio ground select signal Not used in this set. (Open)
61
OPEN KEY
I
OPEN key signal input (LSW60)
62
NOSE SW
I
Front panel attach/detach detect signal input Connect to ground in this set.
63
VSS
—
Ground pin
64
DETACH SW
I
Front panel detach detect signal input (S1)
65
PWM
I
DC-DC converter OSC frequency count signal
66 to 68
NCO
O
Not used. (Open)
69
FLASH W
I
Flash write-in mode detect signal input
70
I2C SIO
O
I2C serial data signal output
71
I2C CKO
O
I2C serial clock signal output
72
KEY ACK
I
Key acknowledge detect signal input
73
X1A
—
Crystal oscillator (32.768 kHz)
74
X0A
—
Crystal oscillator (32.768 kHz)
75
DAVN
I
RDS data block synchro detect signal input from RDS decoder (IC601)
(AEP, UK, E model)
76
CD ON
O
CD mechanism power control signal output
77
BU IN
I
Back-up power supply detect signal input from bus interface (IC802)
78
CD PACK
I
Servo CPU CD TEXT PACK synchro signal input from servo IC (IC1)
79
RC IN1
I
Rotary commander signal input 1 from remote in jack (CNP803)
80
AD ON
O
A/D converter power control signal output
81
ACC IN
I
Accessory key ON signal input
82
FLSW PW ON
O
Flash write-in jig power control signal output
83
PW ON
O
System power control signal output
84
TEST IN
I
Test mode setting detect signal input
85
RAM BU
I
RAM reset detect signal input
86
HSTX
—
Hardware standby setting input
87
MD2
I
Operation mode setting 2 input Connect to ground in this set.
88
MD1
—
Operation mode setting 1 input Connect to VDD in this set.
89
MD0
—
Operation mode setting 0 input Connect to VDD in this set.
90
RSTX
I
CPU reset input
91
VSS
—
Ground pin
92
X0
—
Crystal oscillator (3.68 MHz)
93
X1
—
Crystal oscillator (3.68 MHz)
94
VCC
—
Power supply pin (+5 V)
95
ILL IN
I
Illumination line detect signal input
96
I DET
I
Front panel current detect signal input
97
MOT –
O
Front panel open/close motor control signal output to motor drive (IC307)
98
MOT +
O
Front panel open/close motor control signal output to motor drive (IC307)
99
CLOSW SW
I
Front panel close detect signal input (SW1001)
100
OPEN SW
I
Front panel open detect signal input (SW1001)
101
CENTER SW
I
Front panel center position detect signal input (SW1002)
102
MODEL SEL
I
Fix/Detach model select setting signal input
103
NCO
O
Not used. (Open)
24
CDX-M730
Pin No.
Pin Name
I/O
Pin Description
104
DST SEL1
I
Destination select 1 signal input
105
DST SEL2
I
Destination select 2 signal input
106
BOOT
O
Display CPU write-in control signal output to sub system control (IC301)
107
S CODE1
I
Security code setting 1 signal input
108
S CODE2
I
Security code setting 2 signal input
109
S CODE3
I
Security code setting 3 signal input
110
S CODE4
I
Security code setting 4 signal input
111
CDM ON
O
CD mechanism power voltage control signal output
112
NCO
O
Not used. (Open)
113
NCO
O
Not used. (Connect to ground.)
114
TUN ON
O
Tuner ON control signal output
115
LED SW1
O
Front panel illumination control signal output to sub system control (IC301)
116
LED SW2
O
Control panel illumination control signal output to sub system control (IC301)
117
ADSO1
O
Not used. (Open)
118
ADSO2
O
Not used. (Open)
119
VSS
—
Ground pin
120
NCO
O
Not used. (Open)
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