Sony CDX-CA900 / CDX-CA900X Service Manual ▷ View online
13
CDX-CA900/CA900X
3-1. IC PIN DESCRIPTIONS
• IC501 MB90574CPMT-G-367-BNDE1 (SYSTEM CONTROL) (US, Canadian Model)
• IC501 MB90574CPMT-G-368-BNDE1 (SYSTEM CONTROL) (AEP, UK, E Model)
• IC501 MB90574CPMT-G-368-BNDE1 (SYSTEM CONTROL) (AEP, UK, E Model)
Pin No.
Pin Name
I/O
Pin Description
1
RF OK
I
Servo IC RFOK signal input from servo IC (IC1)
2
CD RST
O
Servo IC reset signal output to servo IC (IC1)
3
A0
O
Servo IC command/parameter identification signal output to servo IC (IC1)
Command transmission: “L”
4
STB
O
Servo IC data storob signal output to servo IC (IC1) Data latch: “L”
5
ATT
O
System mute control signal output
6
XTAL EN
O
Not used in this set.
7
LIMIT
I
CD mechanism limit switch signal input (SW3)
8
VCC
—
Power supply pin (+5 V)
9
AMP ATT
O
Power amp mute signal output to power amp (IC381)
10
E2PSIO
I/O
EEPROM data signal input/output with tuner unit (TUX201)
11
E2PCKO
O
EEPROM clock signal output to tuner unit (TUX201)
12
DOOR SW/FLS SI
I
Front panel open/close detection signal input/Flash write data signal input
13
FLS SO
O
Flash write data signal output
14
BUS ON
O
Bus on control signal output
15
BEEP
O
Beep signal output to power amp (IC381)
16
(NCO)
O
Not used. (Open)
17
UNISI
I
SONY bus data signal input
18
UNISO
O
SONY bus data signal output
19
UNICKO
O
SONY bus clock signal output
20, 21
(NCO)
O
Not used. (Open)
22
SYSRST
O
System reset signal output to bus interface (IC601)
23
(NCO)
O
Not used.
24
SIRCS
I
Remote control data signal input
25
TSI
I
Servo IC serial data signal input from servo IC (IC1)
26
TSO
O
Servo IC serial data signal output to servo IC (IC1)
27
TCKO
O
Servo IC serial clock signal output to servo IC (IC1)
28
PH1
I
CD mechanism PH1 detection signal input Not used in this set.
29
CD DSW
I
CD mechanism down switch signal input (SW4)
30
IN SW/PH2
I
CD mechanism disc-in switch signal input (SW1)
31
PH3
I
CD mechanism PH3 detection signal input Not used in this set.
32
CD LM LO
O
CD mechanism loading motor control signal output
33
VSS
—
Ground pin
34
C
—
Capacitance pin of power stabilized
35
CD LM EJ
O
CD mechanism eject motor control signal output
36
AMP ON
O
Amp on signal output to power amp (IC381) “L”: OFF, “H”: ON
37
VOLATT
O
Electronic volume mute signal output to electronic volume (IC301) “L”: Mute
38
DVCC
—
D/A converter VREF input (+5 V)
39
DVSS
—
D/A converter ground pin
40
ADSO1
O
ADSO select switch output 1
41
ADSO2
O
ADSO select switch output 2
42
AVCC
—
Analog power supply pin (+5 V)
43
AVRH
—
A/D convert Vref+ input (+5 V)
44
AVRL
—
A/D convert Vref– input (0 V)
45
AVSS
—
Analog ground pin
46
KEYIN0
I
Key signal input
47
NC
O
Not used. (Open)
48
RC IN0
I
Rotary commander signal input from remote in jack (J651)
49
(NCO)
O
Not used. (Open)
50
QUALITY
I
Tuner noise detection signal input (E model)
SECTION 3
DIAGRAMS
Ver 1.1
14
CDX-CA900/CA900X
Pin No.
Pin Name
I/O
Pin Description
51
NC
O
Not used. (Open)
52
MPTH
O
Not used in this set. (Open)
53
VSM
I
S-meter signal input from tuner unit (TUX201)
54
VCC
—
Power supply pin (+5 V)
55
BUS/AUX
O
BUS/AUX audio ground select signal output “H”: BUS
56
NS MASK
O
Tuner noise mask signal output (E model)
57
BOOT
O
Display microcomputer write control signal output to sub system control (IC701)
58
DOORIND
O
Front panel indicator signal output
59 to 62
—
I
Not used in this set. (Connect to ground.)
63
VSS
—
Ground pin
64
CD PACK
I
Servo IC CD text pack synchronization signal input
65, 66
(NCO)
O
Not used. (Open)
67
CD SELFSW
I
CD mechanism self load position detection switch signal input (SW2)
68
—
O
Not used. (Open)
69
FLASH W
I
Flash write mode detection signal input
70
I2CSIO
O
Tuner (TUX201), electronic volume (IC301) communication data signal output
71
I2CCKO
O
Tuner (TUX201), electronic volume (IC301) communication clock signal output
72
KEYACK
I
Key acknowledge detection signal input
73
X1A
—
Low speed oscillation signal input (32.768 kHz)
74
X0A
—
Low speed oscillation signal input (32.768 kHz)
75
DAVN
I
RDS data block synchronization detection signal input (E model)
76
(NCO)
O
Not used. (Open)
77
BU IN
I
Back up power detection signal input
78, 79
—
O
Not used. (Open)
80
ADON
O
Power control signal output of A/D converter
81
NOSESW
I
Front panel attachment detection signal input from nose detect switch (S102) “L”: ON
82
FLASH ON
O
Flash write jig power supply signal output
83
PWON
O
System power control signal output
84
—
O
Not used. (Open)
85
RAMBU
I
Reset detection signal input of RAM
86
HSTX
I
Hardware standby signal input “L”: Standby mode
87
MD2
I
Operation mode signal input Connect to ground in this set.
88, 89
MD1, 0
I
Operation mode signal input Connect to VCC in this set.
90
RESET
I
Microcomputer reset signal input
91
VSS
—
Ground pin
92
X0
—
High speed oscillation signal input (3.68 MHz)
93
X1
—
High speed oscillation signal input (3.68 MHz)
94
VCC
—
Power supply pin (+5 V)
95, 96
NC
O
Not used. (Open)
97 to 101
(NCO)
O
Not used. (Open)
102
MODELSEL0
I
Not used. (Open) Destination detection signal input
U•E/J (P)
103
10k/9k (P)
I
Not used. (Open) Destination detection signal input
104
(NCO)
O
Not used. (Open)
105
CD MON
O
CD mechanism power control signal output to power supply (IC801)
106
CD ON
O
CD mechanism voltage control signal output to power supply (IC801)
107
RCIN1 (P)
I
Rotary commander signal input from remote in jack (J651)
108
TESTIN (P)
I
Test mode set up detection signal input
109
TELATT (P)
I
Tell mute detection signal input
110
ILLIN (P)
I
Illumination line detection signal input “L”: Dimmer on
111
—
O
Not used. (Open)
112
(NCO)
O
Not used. (Open)
113
TUNON
O
Tuner on signal output
15
CDX-CA900/CA900X
Pin No.
Pin Name
I/O
Pin Description
114 to 116
—
O
Not used. (Open)
117
ACCIN
I
ACC power detection signal input “L”: ACC on
118
—
O
Not used. (Open)
119
VSS
—
Ground pin
120
CD TSTB
O
Servo IC CD text parameter storob signal output to servo IC (IC1)
16
CDX-CA900/CA900X
• IC701 HD64F2398A04FWV (SUB SYSTEM CONTROL)
Pin No.
Pin Name
I/O
Pin Description
1
PG3
O
Spectrum analyzer data clock signal output to electronic volume (IC301)
2
PG4
O
Not used. (Open)
3
VSS
—
Ground pin
4
NC
—
Not used. (Open)
5
VCC
—
Power supply pin (+5 V)
6 to 9
PC0 to PC3
O
Not used. (Open)
10
VSS
—
Ground pin
11 to 14
PC4 to PC7
O
Not used. (Open)
15 to 18
PB0 to PB3
O
Not used. (Open)
19
VSS
—
Ground pin
20 to 23
PB4 to PB7
O
Not used. (Open)
24 to 27
PA0 to PA3
O
Not used. (Open)
28
VSS
—
Ground pin
29 to 32
PA4/IRQ4 to PA7/IRQ7
O
Not used. (Open)
33
SA EN
I
Spectrum analyzer enable signal input from system control (IC501)
34
BU IN
I
Back up power signal input from bus interface (IC601)
35, 36
VSS
—
Ground pin
37
P65/IRQ1
O
Not used. (Open)
38
BUS ON
I
Bus on signal input from system control (IC501)
39
VCC
—
Power supply pin (+5 V)
40 to 43
PE0 to PE3
O
Not used. (Open)
44
VSS
—
Ground pin
45 to 48
PE4 to PE7
O
Not used. (Open)
49
—
O
Not used. (Open)
50
LINK OFF
O
Link off signal output
51
PD2
O
Not used. (Open)
52
ILL ON
O
Illumination power control signal output
53
VSS
—
Ground pin
54, 55
—
O
Not used. (Open)
56
PD6
O
Not used. (Open)
57
BOOT
I
Flash write mode detection signal input from system control (IC501)
58
VCC
—
Power supply pin (+5 V)
59
NC
O
Not used. (Open)
60
TX/LCD DATA
O
Flash write data signal output/LCD driver data signal output
61
SP SI
O
Not used. (Open)
62
RX/DOOR SW
I
Flash write data signal input/Door switch detection signal input
63
L RST
O
Reset signal output
64
LCD SCK
O
LCD driver clock signal output
65
VSS
—
Ground pin
66
LCD CEI
O
LCD driver chip enable signal output
67, 68
VSS
—
Ground pin
69 to 71
(NCO)
O
Not used. (Open)
72 to 79
P27 to P20
O
Not used. (Open)
80
VCL
—
Connect to external capacitor
81
RST
I
Reset signal input
82
NMI
I
Non-maskable interruption signal input
83
STBY (H)
—
Standby mode pin
84
VCC
—
Power supply pin (+5 V)
85
XTAL
—
Crystal oscillator connection pin (18.432 MHz)
86
EXTAL
—
Crystal oscillator connection pin (18.432 MHz)
87
VSS
—
Ground pin
88
PF7
O
Not used. (Open)
Click on the first or last page to see other CDX-CA900 / CDX-CA900X service manuals if exist.