Sony MEX-1GPX Service Manual ▷ View online
3
3
MEX-1GPX
IC100 TDA8588AJ/N2/R1 (Placa PRINCIPAL (2/3))
MUTE
MUTE
ENABLE
LOGIC
STANDBY
MUTE
CHIP DETECT
DIAGNOSTIC
PROTECTION
DIAGNOSTIC
SWITCH
REGULATOR
SWITCH
REFERENCE
VOLTAGE
LOADDUMP
PROTECTION
TEMPERATURE
PROTECTION
BACK-UP
SWITCH
REGULATOR
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
TAB
FL-
FL+
RL-
RL+
RL
SGND
RR
RR+
RR-
FR+
FR-
DIAG
SW2
SW1
REG3(SERVO)
REG4(MECHA)
VP
REG2(U-COM)
SDA
SCL
VP2
PGND3
SVR
FL
FR
ACGND
PGND2
VP1
STB
PGND1
RST
CRES
REG1(AU8V)
GND
REG5(DISP+B)
CBU
FL
RL
RR
VP
FR
I2C BUS
IC900 BA8271F-E2 (Placa PRINCIPAL (3/3))
1
2
3
4
5
5
6
7
8
9
10
14
13
12
11
BUS ON
SWITCH
RESET
SWITCH
BATTERY
SWITCH
BUSON
RST
BATT
CLK
VREF
GND
VCC
RST
BUSON
BUSON
CLK-IN
B/U-C
DATA IN
DATA OUT
DATA I/O
3
4
MEX-1GPX
• DESCRIÇÕES DOS PINOS DE IC
• IC3 MB90486BPFV-G-177E1 (CD SYSTEM CONTROL) (PLACA SERVO (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
Zero data detection signal input (L-ch) (Connected to Vss)
23
DAC_ZDETR
I
Zero data detection signal input (R-ch) (Connected to Vss)
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 on/off signal input H: backup on, L: backup off
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
Serial data input
57
UNISO
O
Serial data output
58
UNICKI
I
Serial clock input
59
LINEOFF
O
Line off signal output
60
A_ATT
O
Audio attenuation signal output H: ATT on
3
5
MEX-1GPX
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
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
MECHA +6V power rising detection signal input
68
CDON_CHK
I
SERVO +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
—
Sub-clock OUTPUT Not used in this set. (Open)
78
X0A
—
Sub-clock INPUT Not used in this set. (Connect 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
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 96
NC
—
Not used. (Open)
97
XDES
I
Destination setting pin
98
XLINE
I
Not used in this set. (Open)
99, 100
NC
—
Not used. (Open)
Pin No.
Pin Name
I/O
Pin Description
3
6
MEX-1GPX
• IC801 MB90488BPF-G-215E1 (SYSTEM CONTROL) (PLACA PRINCIPAL (3/3))
Pin No.
Pin Name
I/O
Pin Description
1
ATT
O
Audio mute signal output
2 to 4
NC
—
Not used (Open)
5
BEEP
O
Beep signal output
6
VOL_ATT
O
Electronic volume ATT control signal output
7
ILL
I
ILL signal input
8 to 10
NC
—
Not used (Open)
11
VSS
—
Ground
12
NC
—
Not used (Open)
13
NSMASK
O
NS mask signal output
14
NC
—
Not used (Open)
15
TU_ATT
O
Tuner mute signal output
16
MA_SL_RST
O
MA-SL reset signal output
17
NC
—
Not used (Open)
18
SL_MA_DAT
I
SL-MA serial data input
19
MA_SL_DAT
O
MA-SL serial data output
20
SL_MA_CLK
I
SL-MA serial transfer clock input
21
RE_0
I
Rotary encoder (Volume) signal input
22
RE_1
I
Rotary encoder (Volume) signal input
23
VCC+3.3
—
Power supply pin (+3.3V)
24
EEP_SIO
I/O
TU-EEPROM serial data input/output
25
EEP_SCK
O
TU-EEPROM serial transfer clock output
26
SA_CLK
O
Spectrum analyzer serial transfer clock 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 transfer clock output
30
MA_SL_REQ
O
MA-SL request signal output
31
STB
O
Power AMP/RDS power standby signal output
32
AUX
O
Bus audio ON signal output
33
IIC_SCK
O
IIC bus serial clock output
34
IIC_SIO
I/O
IIC bus serial data input/output
35
VCC+3.3
—
A/D converter power supply pin (+3.3V)
36
AVRH+3.3
—
A/D converter reference voltage supply pin (+3.3V)
37
AVSS
—
Ground
38
KEY_IN0
I
Key signal input
39
KEY_IN1
I
Key signal input
40
SA_DATA
I
Spectrum analyzer serial data input
41
RC_IN0
I
Remote control signal input
42
VSS
—
Ground
43
NC
—
Not used (Open)
44
QUALITY
I
Tuner noise level input
45
VSM
I
S-meter signal input
46
DST_SEL
I
Destination setting pin
47
KEY_ACK
I
Key acknowledgment detect signal input
48
NC
—
Not used (Open)
49
MD0
I
Operation mode setting pin
50
MD1
I
Operation mode setting pin
51
MD2
I
Operation mode setting pin
52
NC
—
Not used (Open)
53
BU_IN
I
Back-up power supply detect signal input
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