Sony CDX-GT800D / CDX-GT805DX Service Manual ▷ View online
41
CDX-GT800D/GT805DX
• IC PIN DESCRIPTIONS
• IC3 MB90486BPFV-G-177E1 (CD SYSTEM CONTROL) (SERVO BOARD (2/2))
Pin No.
Pin Name
I/O
Pin Description
1
CDON_1500MV
O
Servo 1.5 V power supply control signal output
2 to 5
NC
—
Not used. (Open)
6
DRVON
O
Motor drive mute signal output
7
CD_BUS0
I/O
Bus data input/output 0
8
CD_BUS1
I/O
Bus data input/output 1
9
VSS
—
Ground
10
CD_BUS2
I/O
Bus data input/output 2
11
CD_BUS3
I/O
Bus data 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
Not used. (Pull down)
23
DAC_ZDETR
I
Not used. (Pull down)
24
NC
—
Not used. (Open)
25
RXD
I
UART RXD data input (MCBUS/Flash data input)
26
TXD
O
UART TXD data 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
36
NC
—
Not used. (Open)
37
DEC_XMUTE
O
Mute signal output L: mute
38, 39
NC
—
Not used. (Open)
40
VSS
—
Ground
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 (Connected to Vcc.)
49
MD2
I
CPU operation mode designation signal input (Connected to Vss.)
50
BUS_ON
I
Bus on signal input L: bus on
51
BU_IN
I
Backup power supply detect signal input
52
NC
I
Not used. (Open)
53
MEC_SELFSW
I
Disc insert detection switch signal input L: disc in interruption
54, 55
NC
—
Not used. (Open)
56
UNISI
I
Control bus serial data input
57
UNISO
O
Control bus serial data output
58
UNICKI
I
Control bus serial clock input
59
LINKOFF
O
Bus link off signal output
60
A_ATT
O
Audio mute signal output H: mute on
42
CDX-GT800D/GT805DX
61
XFLASH&EJECT_OK
I
Front panel open signal input H: eject
62
OPEN_REQ
O
Front panel open/close request signal output Not used in this set.
63
MECON
O
Mechanism deck power supply control signal output
64
CDON
O
Servo power supply control signal output
65
XUART
I
S-Bus/MC-Bus change signal input H: S-Bus, L: MC-Bus
66
ZMUTE
O
Zero detection mute signal output
67
MECON_CHK
I
CD +6V power rising detection signal input
68
CDON_CHK
I
CD +3.3V power 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
—
Not used. (Open)
78
X0A
—
Connected to Vss.
79
VSS
—
Ground
80
X0
I
Main-clock INPUT (12 MHz)
81
X1
O
Main-clock OUTPUT (12 MHz)
82
VCC
—
Power supply pin (+3.3 V)
83
XWD
I
Connected to Vss.
84
XINIT3
I
Not used. (Open)
85
NC
—
Not used. (Open)
86
XSJIG
I
Not used. (Open)
87 to 89
XINIT0 to 2
I
Not used. (Open)
90 to 96
NC
—
Not used. (Open)
97
XDES
I
Destination setting pin
98
XLINE
I
Not used. (Open)
99, 100
NC
—
Not used. (Open)
Pin No.
Pin Name
I/O
Pin Description
43
CDX-GT800D/GT805DX
• IC303 M30622MWP-304GP (SYSTEM CONTROL) (MAIN BOARD (3/4))
Pin No.
Pin Name
I/O
Pin Description
1
SIRCS
I
Remote control data signal input
2
FSW-IN
I
FL DC-DC converter frequency count input
3
UNI_SO
O
Control bus serial data output
4
UNI_SI
I
Control bus serial data input
5
UNI_CKO
O
Control bus serial clock output
6
BYTE
I
Not used (Connect to ground)
7
CNVSS
I
Flash write port Fixed at “L”
8
XCIN
I
Sub clock signal input (32.768 kHz)
9
XCOUT
O
Sub clock signal output (32.768 kHz)
10
RESET
I
Reset signal input
11
XOUT
O
Main clock signal output (6 MHz)
12
VSS
—
Ground
13
XIN
I
Main clock signal input (6 MHz)
14
VCC1
—
Power supply pin (+3.3 V)
15
NMI
I
Non-maskable interruption signal input Fixed at “H”
16
NC
—
Not used (Open)
17
DAVN
I
RDS data block synchronization detection signal input
18
TUNER ATT-IN
I
Tuner attenuation zero cross input
19
NS-MASK
O
Tuner noise detect mask signal output
20
BEEP
O
Beep signal output
21
TUNER ATT
O
Tuner mute signal output
22
EESIO(TU)
I/O
Tuner pack EEPROM data signal input/output
23
EECKO(TU)
O
Tuner pack EEPROM clock signal output
24
NC
—
Not used (Open)
25
ATT
O
Line mute signal output
26
BUS/AUX
O
Buss audio/AUX exchange signal output
27
I2C_CKO
O
I2C serial transfer clock output
28
I2C_SIO
I/O
I2C serial data input/output
29
E_VOL_SO
O
E-VOL serial data output
30
E_VOL_MUTE
O
E-VOL mute signal output
31
E_VOL_CKO
O
E-VOL serial transfer clock output
32
DSP_RESET
O
DSP reset signal output
33
DSP_I2C_SIO
I/O
DSP I2C data input/output
34
DSP_I2C_CKO
O
DSP I2C serial transfer clock output
35
EECKO (DSP)
O
EEPROM serial transfer clock output
36
EESIO (DSP)
I/O
EEPROM serial data input/output
37
DSP_ON
O
DSP power supply on signal output
38
NC
—
Not used (Open)
39
HOLD
I
Not used Fixed at “L”
40
AMP_DIAG
I
Amplifier self-diagnostic test function signal input
41
AMP_STB
O
Amplifier standby signal output
42
NC
—
Not used (Open)
43
NC
—
Not used (Open)
44
WRI/WR
I
External data bus (WRI/WR) input Fixed at “H”
45
NC
—
Not used (Open)
46
OPEN_REQ
I
Front panel open/close request signal input
47
EJECT_OK
O
Eject OK signal output
48
CDM_ON
I
Mechanism deck power supply ON signal input
49
CD_ON
I
Servo power supply ON signal input
44
CDX-GT800D/GT805DX
50
Z_DET
I
Zero detection mute signal input
51
ILL-IN
I
Illumination check signal input
52
ACC_IN
I
Accessory check signal input
53
TEL_ATT
I
Telephone mute signal input
54
TEST_IN
I
Test mode signal input
55
RC_IN1
I
Remote control signal input 1
56
SYSRESET
O
System reset signal output
57
BUS_ON
O
BUS ON signal output
58
BU_IN
I
Backup power supply detection signal input
59
NC
—
Not used (Open)
60
VCC2
—
Power supply (+3.3 V)
61
NC
—
Not used (Open)
62
VSS
—
Ground
63
MOTOR ON
O
Front panel motor drive power supply signal output
64
MOT+
O
Front panel open/close motor control signal output (+)
65
MOT–
O
Front panel open/close motor control signal output (–)
66
CLOSE_SW
I
Front panel close detection signal input
67
OPEN_SW
I
Front panel open detection signal input
68
P-SNSR
I
Drive mechanism gear rotary information input
69
P-MONITOR
—
P-SNSR result’s monitor output
70
DST_SEL1
I
Destination/setting port signal input 1
71
DST_SEL2
I
Destination/setting port signal input 2
72
FL_ON
O
FL power supply on/off signal output
73
FSW OUT
O
FL DC-DC converter frequency exchange signal output
74
FLD_ON
O
FL driver power supply on/off signal output
75
RE_1B
I
Rotary encoder signal input 1B
76
RE_1A
I
Rotary encoder signal input 1A
77
RE_2B
I
Rotary encoder signal input 2B
78
RE_2A
I
Rotary encoder signal input 2A
79
FP-IDET
I
Front panel motor over current detect signal input
80
TEMP-TR
I
Temperature detection signal input
81
NC
—
Not used (Open)
82
QUALITY
I
Tuner noise detect signal input
83
VSM
I
S-meter voltage signal input
84
KEY_IN0
I
Key signal input 1
85
KEY_IN1
I
Key signal input 2
86
RC_IN0
I
Remote control signal input 0
87
KEY_ACK2
I
Key acknowledge signal input 2
88
KEY_ACK0
I
Key acknowledge signal input 1
89
KEY_ACK1
I
Key acknowledge signal input 0
90
DISP_RESET
O
Display control reset signal output
91
NOSE_SW
I
Front panel detect signal input
92
NC
O
Not used (Open)
93
DISP_CE
O
Display control chip enable signal output
94
AVSS
—
Ground
95
DOOR_IND
O
DISC IN illumination on signal output
96
VREF
—
Reference voltage for A/D convert
97
AVCC
—
Power supply (+3.3 V)
98
DISP SI/RX
I
Display control serial data signal input
99
DISP SO/TX
O
Display control serial data signal output
100
DISP CKO
O
Display control serial transfer clock output
Pin No.
Pin Name
I/O
Pin Description
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