Sony CDX-R5515X / CDX-R5610 / CDX-R6550 Service Manual ▷ View online
38
CDX-R5515X/R5610/R6550
• IC PIN DESCRIPTIONS
• IC3 MB90487APFV-G-131-BNDE1 (CD SYSTEM CONTROL) (SERVO BOARD (2/2))
Pin No.
Pin Name
I/O
Pin Description
1
NC
O
Servo 1.5 V power supply control signal output
2 to 6
NC
—
Not used. (Open)
7
CD BUS0
I/O
Bus data signal input/output 0
8
CD BUS1
I/O
Bus data signal input/output 1
9
VSS
—
Ground pin
10
CD BUS2
I/O
Bus data signal input/output 2
11
CD BUS3
I/O
Bus data signal input/output 3
12
CD BUCK
O
Bus clock signal output
13
CD XCCE
O
Chip enable signal output
14
CD XRST
O
Reset signal output
15
CD ZDET
I
Zero detection signal input
16 to 20
NC
—
Not used. (Open)
21
VCC
—
Power supply pin (+3.3 V)
22
DAC ZDETL
I
Zero data detection signal input (L-ch)
23
DAC ZDETR
I
Zero data detection signal input (R-ch)
24
NC
—
Not used. (Open)
25
RXD
I
UART RXD data signal input (MCBUS/Flash data input)
26
TXD
O
UART TXD data signal output (MCBUS/Flash data output)
27
DEC SSTBY
O
SRAM STANDBY mode control signal output
28, 29
NC
—
Not used. (Open)
30
DEC INT
I
Request signal input
31, 32
NC
—
Not used. (Open)
33
AVCC
—
Power supply pin (+3.3 V) for A/D converter
34
AVRH
—
External reference voltage for A/D converter
35
AVSS
—
Ground pin
36
NC
—
Not used. (Open)
37
DEC XMUTE
O
Mute signal output L: mute
38, 39
NC
—
Not used. (Open)
40
VSS
—
Ground pin
41
NC
—
Not used. (Open)
42
MEC LIMIT
I
Sled limit in detection switch signal input
43
MEC LOAD
O
Loading motor signal output (Load direction)
44
MEC EJECT
O
Loading motor signal output (Eject direction)
45
MEC INSW
I
Pack-in detection signal input
46
MEC DSW
I
Chucking end detection switch signal input
47, 48
MD0, MD1
I
CPU operation mode designation signal input (Connect to Vcc.)
49
MD2
I
CPU operation mode designation signal input (Connect to Vss.)
50
BUS ON
I
Bus on signal input L: bus on
51
BU IN
I
Backup on/off signal input H: backup on, L: backup off
52
CD SBSY
I
SUBQ sync signal input L: interruption
53
MEC SELFSW
I
Disc insert detection switch signal input L: disc in interruption
54, 55
NC
—
Not used. (Open)
56
UNISI
I
Serial data signal input
57
UNISO
O
Serial data signal output
58
UNICKI
I
Serial clock signal input
59
LINEOFF
O
Line off signal output
60
A ATT
O
Audio attenuation signal output H: ATT on
61
EJECT OK
I
Front panel open signal input H: eject
62
OPEN REQ
O
Front panel open/close request signal output H: open request
63
MECON
O
Mechanism deck power supply control signal output
64
CDON
O
Servo power supply control signal output
39
CDX-R5515X/R5610/R6550
Pin No.
Pin Name
I/O
Pin Description
65
XUART
I
Sony-Bus/MC-Bus change signal input H: Sony-Bus, L: MC-Bus
66
ZMUTE
O
Zero detection mute signal output
67
MECON CHK
I
MECON rising detection signal input
68
CDON CHK
I
CDON rising detection signal input
69 to 74
NC
—
Not used. (Open)
75
RSTX
I
System reset signal input
76
NC
—
Not used. (Open)
77
X1A
—
Sub-clock connect pin Not used in this set. (Open)
78
X0A
—
Sub-clock connect pin Not used in this set. (Connect to Vss.)
79
VSS
—
Ground pin
80
X0
I
Main-clock connect pin (12 MHz)
81
X1
O
Main-clock connect pin (12 MHz)
82
VCC
—
Power supply pin (+3.3 V)
83
XTS
I
Not used in this set. (Open)
84
XINIT3
I
Not used in this set. (Open)
85
NC
—
Not used. (Open)
86
XSJIG
I
Not used in this set. (Open)
87 to 89
XINIT0 to 2
I
Not used in this set. (Open)
90 to 97
NC
—
Not used. (Open)
98
XLINE
I
Not used in this set. (Open)
99, 100
NC
—
Not used. (Open)
40
CDX-R5515X/R5610/R6550
• IC501 MB90488BPF-G-119-BNDE1 (SYSTEM CONTROL) (MAIN BOARD (2/2))
Pin No.
Pin Name
I/O
Pin Description
1
AREA SEL2
I
Destination setting pin
2
AREA SEL1
I
Destination setting pin
3
AREA SEL0
I
Destination setting pin
4
NCO
I
Not used
5
BEEP
O
Beep signal output
6
NCO
I
Not used
7
NOSE SW
I
Front panel open/close detect signal input
8
DIAG
I
Power AMP status signal input
9
VOL ATT
O
Electronic volume attenuate control signal output
10
NCO
O
Not used
11
VSS
—
Ground
12
TU ATT
O
Tuner mute control signal output
13
NS MASK
O
Noise mask signal output
14
ILLUMI SEL1
I
Illumination voltage setting pin
15
ILLUMI SEL2
I
Illumination voltage setting pin
16
NCO
O
Not used
17
AUX IN
O
Not used
18
NCO
O
Not used
19
NCO
O
Not used
20
NCO
O
Not used
21
NCO
O
Not used
22
NCO
O
Not used
23
VCC5
—
Power supply pin (+3.3V)
24
EEP SIO
I/O
EEPROM bus serial data input/output
25
EEP CKO
O
EEPROM bus serial clock output
26
AMP STB
O
Power AMP satandby signal output
27
LCD CE
O
LCD driver chip enable output
28
LCD SO
O
LCD driver serial data output
29
LCD SCK
O
LCD driver serial clock output
30
RDS ON
O
RDS ON signal output
31
NCO
O
Not used
32
NCO
O
Not used
33
I2C SCK
O
I2C bus serial clock output
34
I2C SIO
I/O
I2C bus serial data input/output
35
DAVDD
—
A/D converter power supply pin (+3.3V)
36
AVRH
—
A/D converter reference power supply pin (+3.3V)
37
DAVSS
—
Ground
38
QUALITY
I
Noise detect signal input
39
VSM
I
S-meter voltage detect signal input
40
KEY IN1
I
Key signal input
41
KEY IN0
I
Key signal input
42
VSS
—
Ground
43
RC IN0
I
Rotary commander key signal input
44
SA_IN
I
Spectrum analyzer data signal input
45
SA_CKO
O
Spectrum analyzer clock signal output
46
NCO
O
Not used
47
NCO
O
Not used
48
NCO
O
Not used
49
MD0
I
Operation mode setting pin
50
MD1
I
Operation mode setting pin
51
MD2
I
Operation mode setting pin
52
KEY ACK
I
Key acknowledgment detect signal input
41
CDX-R5515X/R5610/R6550
Pin No.
Pin Name
I/O
Pin Description
53
TU ATT IN
I
Tuner mute zero cross detect signal input
54
BU IN
I
Back-up power supply detect signal input
55
NCO
O
Not used
56
DAVN
I
RDS data block synchronized detect signal input
57
NCO
O
Not used
58
UNI SI
I
SONY bus data input
59
UNI SO
O
SONY bus data output
60
UNI SCK
O
SONY bus clock output
61
NCO
O
Not used
62
NCO
O
Not used
63
NCO
O
Not used
64
SIRCS
I
Remote control signal input
65
NCO
O
Not used
66
NCO
O
Not used
67
NCO
O
Not used
68
FLASH W
I
Memory mode select signal input
69
NCO
O
Not used
70
SYNCHRO SW
I
Synchro CD door open/close detect signal input
71
RC IN1
I
Rotary commander shift key signal input
72
ACC IN
I
Accessory power supply detect signal input
73
TEST IN
I
Test mode detect signal input
74
TEL ATT
I
Telephone attenuate detect signal input
75
ILLU IN
I
Illumination detect signal input
76
XKEY ON
O
A/D converter power supply control signal output
77
RESET
I
CPU reset input
78
NCO
O
Not used
79
XIN
—
Sub-clock input (32.768kHz)
80
XOUT
—
Sub-clock output (32.768kHz)
81
VSS1
—
Ground
82
OSC IN
—
Main-clock input (3.68MHz)
83
OSC OUT
—
Main-clock output (3.68MHz)
84
VCC3
—
Power supply pin (+3.3V)
85
DEMO SEL
I
Demo select signal input
86
ATT
O
Audio mute control signal output
87
BUS ON
O
Bus ON signal output
88
SYS RST
O
System reset output
89
EJECT OK SW
O
Eject OK signal output
90
NCO
O
Not used
91
NCO
O
Not used
92
NCO
O
Not used
93
Z-MUTE
I
Z-Mute signal input
94
NCO
O
Not used
95
NCO
O
Not used
96
NCO
O
Not used
97
NCO
O
Not used
98
CD ON
I
CD servo power control request signal input
99
CDM ON
I
CD deck power control request signal input
100
NCO
O
Not used
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