DOWNLOAD Sony MEX-1HD Service Manual ↓ Size: 7.32 MB | Pages: 124 in PDF or view online for FREE

Model
MEX-1HD
Pages
124
Size
7.32 MB
Type
PDF
Document
Service Manual
Brand
Device
Car Audio
File
mex-1hd.pdf
Date

Sony MEX-1HD Service Manual ▷ View online

93
MEX-1HD
 SUB BOARD  IC501 MB90F574APMT-G-LPN1(SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1 to 4
NC
O
Not used
5
LINE_MUTING
O
Audio line muting on/off control signal output terminal
6
XSYS_RST
O
System reset signal output terminal    “L”: reset    Not used
7
MAIN_RST
O
System reset signal output terminal
8
VCC
Power supply terminal (+5V)
9
XAMP_MUTING
O
Muting on/off control signal output to the power amplifier    “L”: muting
10
E2CKO
O
Serial data transfer clock signal output to the FM/AM tuner pack
11
E2SIO
I/O
Two-way data bus with the FM/AM tuner pack
12
SUB_RXD/
FLS_SI
I
UART receive data input from the CPU    “L” active
13
SUB_TXD/
FLS_SO
O
UART transmit data output to the CPU    “L” active
14
BUS_ON
O
Bus on/off control signal output terminal    “L” active    Not used
15
BEEP
O
Buzzer drive signal output
16
TELATT
I
Telephone muting signal detection input terminal
At input of “H”, the signal is attenuated by 20 dB
17
UNISI
I
Serial data input terminal    Not used
18
UNISO
O
Serial data output terminal    Not used
19
UNICLK
O
Serial data transfer clock signal output terminal    Not used
20
NC
O
Not used
21
DAC_SO
O
Serial data output to the D/A converter 
22
DAC_CLK
O
Serial data transfer clock signal output to the D/A converter 
23
XSIRCS_RST
O
SIRCS reset signal output terminal    “L”: reset    Not used
24
SIRCS
I
Remote control signal input from the remote control receiver
28
RTC_SI
I
Serial data input from the real time clock
25
RTC_SO
O
Serial data output to the real time clock
26
RTC_CLK
O
Serial data transfer clock signal output to the real time clock
27
RTC CS
O
Chip select signal output to the real time clock
29
XDAC_CS
O
Chip select signal output to the D/A converter 
30
XMS_DET0
I
Memory stick in/out detection signal input    “L”: memory stick is inserted
31
XS_MUTING
O
Muting on/off control signal output to the electrical volume    “L”: muting
32
XUSB_DET
I
USB cable detection signal input    “L”: USB cable is connected
33
VSS
Ground terminal
34
C
Connected to the external capacitor for power supply
35
NC
Not used
36
XMS_DET1
I
Memory stick in/out detection signal input    “L”: memory stick is inserted
37
FSW_SFT
O
Oscillation frequency shift control signal output for switching regulator    
“L”: 300kHz, “H”: 330kHz
38
DVCC
Power supply terminal (+5V) (for the D/A converter)
39
DVSS
Ground terminal (for the D/A converter)
40, 41
NC
Not used
42
AVCC
Power supply terminal (+5V) (for the A/D converter)
43
AVRH
I
Reference voltage (+5V) input terminal (for the A/D converter)
44
AVRL
I
Reference voltage (0V) input terminal (for the A/D converter)
45
AVSS
Ground terminal (for the A/D converter)
46
KEYIN0
I
Key input terminal (A/D input)
47
TEMP
I
Connected to the temperature sensor
94
MEX-1HD
Pin No.
Pin Name
I/O
Description
48
RC_IN0
I
Key input from the rotary commander (A/D input)    Not used
49
FP_I_DET
I
Over load detection signal input from the front panel open/close motor driver
50
QUALITY
I
Noise level detection signal input terminal    Not used
51
TR_I_DET
I
Over load detection signal input from the tray open/close motor driver
52
MPTH
I
Multi-path detection signal input terminal    Not used
53
VSM
I
FM and AM signal meter voltage detection input from the FM/AM tuner pack (A/D input)
54
VCC
Power supply terminal (+5V)
55
AMP_ON
O
Power amplifier drive signal output terminal    “L”: standby, “H”: amplifier on
56
NS MASK
O
Noise detect port mask output terminal    “H” active    Not used
57
DOOR_IND
O
LED drive signal output terminal
58
XTROPEN_END
I
Detection input from the tray open-end detect switch    “L”: active
59
XTRCLOSE_END
I
Detection input from the tray close-end detect switch    “L”: active
60
TRAY_LED
O
LED drive signal output terminal
61
TRAY_M+
O
Motor drive signal output to the tray open/close motor driver    “L”: tray open
62
TRAY_M–
O
Motor drive signal output to the tray open/close motor driver    “L”: tray close
63
VSS
Ground terminal
64
NC
Not used
65
FSW_IN
I
Oscillation frequency count terminal
66
NC
Not used
67
SH_WDT
I
Watch dog timer detection signal input terminal
68
XFAIL
I
Rewriting failure detection terminal    “L”: rewriting failure
69
XFLASH _W
I
FLASH writing mode detection terminal    “L”: flash writing mode
70
I2CSIO
I/O
Two-way data bus with the FM/AM tuner pack and electrical volume
71
I2CCKO
O
Serial data transfer clock signal output to the FM/AM tuner pack and electrical volume
72
KEYACK
I
Input of acknowledge signal for the key entry    Acknowledge signal is input to source and eject 
keys in the power off status    On at input of “H”
73
X1A
O
Sub system clock output terminal (32.768kHz)    Not used
74
X0A
I
Sub system clock input terminal (32.768kHz)
75
XDAVN
I
Data transmit completed detect signal input terminal    Not used
76
XRTC_INT
I
Alarm interrupt request signal input from the real time clock
77
BU IN
I
Back up power supply detect signal input terminal    “L” is input at low voltage
78
XPDOWN
I
Power down detection signal input from the voltage detect    “L”: power down, normally: “H”
79
RC_IN1
I
Key input from the rotary commander (A/D input)    Not used
80
XADON
O
A/D converter power control signal output    When the KEYACK (pin us) that controls reference 
voltage power for key A/D conversion input is active, “L” is output from this terminal to enable 
the input
81
XACC_IN
I
Accessory power supply detect signal input terminal    “L”: accessory on
82
FLS_ON
O
Level shift on/off control of UART communication and watch dog timer signal line
83
PW_ON
O
Audio system power supply on/off control signal output to the regulator    “H”: power on
84
XTEST_IN
I
For test terminal    Normally fixed at “H”
85
RAMBU
I
Internal RAM reset detection signal input from the reset signal generator
Input terminal to check that RAM data are not destroyed due to low voltage
This checking is made within 100 msec after reset
86
HSTX
I
Hardware standby signal input terminal    “L”: hardware standby
87 to 89
MD2 to 0
I
Mode setting input terminal
90
XRST
I
System reset signal input from the reset signal generator    “L”: reset
91
VSS
Ground terminal
95
MEX-1HD
Pin No.
Pin Name
I/O
Description
92
X0
I
Main system clock input terminal (3.68MHz)
93
X1
O
Main system clock output terminal (3.68MHz)
94
VCC
Power supply terminal (+5V)
95
ILL IN
I
Illuminate line detect signal input for the auto dimmer control
Dimmer is present at input of “L”
96
NC
Not used
97
FP_M–
O
Motor drive signal output to the front panel open/close motor driver    “L”: front panel close
98
FP_M+
O
Motor drive signal output to the front panel open/close motor driver    “L”: front panel open
99
XFPCLOSE_END
I
Detection input from the panel close-end detect switch    “L”: active
100
XFPOPEN_END
I
Detection input from the panel open-end detect switch    “L”: active
101
MOTOR_ON
O
Motor power on/off control signal output terminal
102
NC
Not used
103
OFFREC_LED
O
LED drive signal output terminal    Not used
104, 105
DSTSEL0,
DSTSEL1
I
Destination setting terminal
106
XNOSE_SW
I
Detects the removal of the attaching and removing type front panel block    “L”: attaching
107
RE_RA
I
Rotary encoder dial pulse input from the rotary encoder (Right/A phase input)
108
RE_RB
I
Rotary encoder dial pulse input from the rotary encoder (Right/B phase input)
109
RE_LA
I
Rotary encoder dial pulse input from the rotary encoder (Left/A phase input)
110
RE_LB
I
Rotary encoder dial pulse input from the rotary encoder (Left/B phase input)
111
MS_LED
O
LED drive signal output terminal
112
FAN_ON
O
Fan motor drive signal output terminal    “H”: active    Not used
113
NC
Not used
114
TUNON
O
Tuner system power supply on/off control terminal
115
D5.0V_OK
I
Power supply voltage (D5V) detection terminal    Not used
116
D3.3V_OK
I
Power supply voltage (D3.3V) detection terminal    Not used
117
D1.8V_OK
I
Power supply voltage (D1.8V) detection terminal    Not used
118
D1.9V_OK
I
Power supply voltage (D1.9V) detection terminal    Not used
119
VSS
Ground terminal
120
MAIN_PON
O
Main system power supply on/off control signal output terminal    “H”: power on
96
MEX-1HD
 DISPLAY BOARD   IC903   RRX9000-0401R#01 (SIRCS CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
VDD
Power supply terminal (+5V)
2
VSS
Ground terminal
3
XIN
I
System clock input terminal (4 MHz)
4
XOUT
O
System clock output terminal (4 MHz)
5
CNVSS
Ground terminal
6
RESET
I
Reset signal input terminal    “L”: reset
7, 8
F0, F1
Not used
9
SIRCS IN
I
SIRCS signal input from the remote control receiver
10
G1/INT
Not used
11, 12
G2, G3
Not used
13 to 16
S3 to S0
Not used
17
D3/K
O
SIRCS signal output to the system controller
18 to 20
D2/C, D1, D0
Not used
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