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Model
MEX-R5
Pages
75
Size
7.35 MB
Type
PDF
Document
Service Manual
Brand
Device
Car Audio
File
mex-r5.pdf
Date

Sony MEX-R5 Service Manual ▷ View online

53
MEX-R5
Pin No.
Pin Name
I/O
Description
99
DVDD33
-
Power supply terminal (+3.3V)
100
DVSS
-
Ground terminal
101
MD3
I/O
Two-way data bus with the SD-RAM
102
MD12
I/O
Two-way data bus with the SD-RAM
103
MD2
I/O
Two-way data bus with the SD-RAM
104
MD13
I/O
Two-way data bus with the SD-RAM
105
MD1
I/O
Two-way data bus with the SD-RAM
106
MD14
I/O
Two-way data bus with the SD-RAM
107
MD0
I/O
Two-way data bus with the SD-RAM
108
MD15
I/O
Two-way data bus with the SD-RAM
109
DVDD33
-
Power supply terminal (+3.3V)
110 to 112 PIO1 7 to PIO1 5
I/O
Not used
113 to 119 PIO2 7 to PIO2 1
I/O
Not used
120
VMUTE
O
Video muting on/off control signal output terminal    Not used
121
DVSS
-
Ground terminal
122
DVDD15
-
Power supply terminal (+1.5V)
123
PIO1 3
I/O
Not used
124
PIO1 1
I/O
Not used
125
RESET
I
System reset signal input from the system controller    "L": reset
126
TEST
I
Test mode setting terminal    "H": test mode, normally fixed at "L"
127
VDACVSS
-
Ground terminal
128
DAOUTB0
O
Not used
129
PA0
O
Video signal output terminal
130
VDACVDD33
-
Power supply terminal (+3.3V)
131
PA1
O
Video signal (Y) output terminal    Not used
132
AVRI
I
Reference voltage input for internal video D/A converter
133, 134
BIAS1, BIAS2
I
Bias voltage setting terminal for internal video D/A converter
135
VDACIREF
I
Input for reference voltage of internal video D/A converter
136
PA2
O
Video signal (Cb) output terminal    Not used
137
VDACVDD33
-
Power supply terminal (+3.3V)
138
PA3
O
Video signal (Cr) output terminal    Not used
139
DAOUTB1
O
Not used
140
VDACVDD33
-
Power supply terminal (+3.3V)
141
DVDD33
-
Power supply terminal (+3.3V)
142
AMUTE
O
Audio muting on/off control signal output terminal
143
MD
O
Serial data output to the D/A converter
144
MC
O
Serial data transfer clock signal output to the D/A converter
145
ML
O
Latch signal output to the D/A converter
146
DVSS
-
Ground terminal
147
DVDD15
-
Power supply terminal (+1.5V)
148
HADR10
O
Address signal output to the flash memory
149 to 157
HADR22 to
HADR14
O
Address signal output to the flash memory
158
HADR31
O
Address signal output to the flash memory
159 to 162
HDAT7 to
HDAT4
I/O
Two-way data bus with the flash memory
163
DVSS
-
Ground terminal
54
MEX-R5
Pin No.
Pin Name
I/O
Description
164 to 167
HDAT3 to
HDAT0
I/O
Two-way data bus with the flash memory
168
RS
O
Data read strobe signal output to the flash memory
169
WP
O
Control signal output for data write protector or writing speed to the flash memory
170
HADR30
O
Address signal output to the flash memory
171
DVDD33
-
Power supply terminal (+3.3V)
172 to 178
HADR29 to
HADR23
O
Address signal output to the flash memory
179
HADR13
O
Address signal output to the flash memory
180
WS
O
Write enable signal output to the flash memory
181, 182
HADR12,
HADR11
O
Address signal output to the flash memory
183
SIN0
I
Serial data input terminal    Not used
184
DVSS
-
Ground terminal
185
SOUT0
O
Serial data output terminal    Not used
186
SCLK0
O
Serial data transfer clock signal output terminal
187
_PIO1 0
I/O
Not used
188
TDO
O
Data output terminal for JTAG test    Normally not used
189
TRST
I
Reset signal input terminal for JTAG test    Normally not used
190
TMS
I
Mode setting terminal for JTAG test    Normally not used
191
TDI
I
Serial data input terminal for JTAG test    Normally not used
192
TCK
I
Clock signal input terminal for JTAG test    Normally not used
193
DVDD15
-
Power supply terminal (+1.5V)
194
DVSS
-
Ground terminal
195
RTS
O
Data send request signal output terminal for UART communication
196
CTS
I
Data send request signal input terminal for UART communication
197
TXD
O
Transmit data output terminal for UART communication
198
RXD
I
Receive data input terminal for UART communication
199
L/R
O
PCM audio signal output terminal (L/R channel)    Not used
200
C/SW
O
PCM audio signal output terminal (C/SW channel)    Not used
201
LS/RS
O
PCM audio signal output terminal (SL/SR channel)    Not used
202
DOWNMIX
O
PCM audio signal output terminal (downmix)
203
SPDIFOUT0
O
SPDIF audio signal output terminal
204
DVDD33
-
Power supply terminal (+3.3V)
205
LRCLK
O
L/R sampling clock signal output to the D/A converter
206
DACCLK
O
Serial data transfer clock signal output to the D/A converter
207
DOCLK
O
Serial data output to the D/A converter
208, 209
GIO7, GIO6
I/O
Not used
210
GAINSW
I
Gain switch input from the optical pick-up block
211
CMD
I/O
Not used
212
REQ
I/O
Not used
213
SKM
I/O
Not used
214
RF_RST
I
System reset signal input from the reset signal generator
215
CD/DVD
O
CD/DVD switching control signal output terminal
216
DVSS
-
Ground terminal
55
MEX-R5
MAIN BOARD  IC501 MB90474PFV-G-213-BNDE1 (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
EESIO
I/O
Two-way data bus with the EEPROM
2
EECKO
O
Serial data transfer clock signal output to the EEPROM
3
TUNATT
O
Tuner muting on/off control signal output terminal
4
NSMASK
O
Discharge control signal output for the noise detection circuit
"H": discharge (AEP, UK, Russian models only)
5
BEEP
O
Beep sound drive signal output terminal
6
FANH
O
Fan motor drive signal output terminal (for high speed)
7, 8
NC
O
Not used
9
VSS
-
Ground terminal
10
BUS_AUX
O
Ground switching signal output of SONY bus/AUX audio input
"L": AUX input, "H": SONY bus input
11
MUTE_SEL
O
Muting on/off control signal output terminal    "L": output only rear monitor
12
VMUTE_R
O
Video muting on/off control signal output terminal for the rear monitor output
"L": muting on
13
VMUTE_F
O
Video muting on/off control signal output terminal for the front monitor output
"L": muting on
14
ATT
O
Muting on/off control signal output terminal
15
VOLATT
O
Muting on/off control signal output to the electrical volume IC    "L": muting on
16
REAR_ATT
O
Muting on/off control signal output terminal for the rear monitor output    "L": muting on
17
LCDSO
O
Serial data output to the LCD driver
18
LCDCKO
O
Serial data transfer clock signal output to the LCD driver
19
LCDCE
O
Chip enable signal output to the LCD driver
20
NC
O
Not used
21
VCC
-
Power supply terminal (+5V)
22
DIAG
I
Diagnostic signal input from the power amplifier IC
23
STB
O
Standby control signal output to the power amplifier IC
24
NC
O
Not used
25
RXD
I
Receive data input terminal for UART communication
26
TXD
O
Transmit data output terminal for UART communication
27
NC
O
Not used
28
G_DOWN
O
Gain control signal output for the rear monitor audio output    "H": gain down (-6dB)
29
NC
O
Not used
30
SA_CLK
O
Spectrum analyzer data transfer clock signal output terminal
31
I2CCKO
O
IIC data transfer clock signal output terminal
32
I2CSIO
I/O
IIC two-way data bus
33
AVCC
-
Power supply terminal (+3.3V)
34
AVRH
I
Reference voltage (+5V) input terminal (for A/D conversion)
35
AVSS
-
Ground terminal
36, 37
KEYIN0,
KEYIN1
I
Front panel key input terminal (A/D input)
38
RCIN0
I
Rotary remote commander key input terminal (A/D input)
39
VSM
I
FM and AM signal-meter voltage detection signal input from the tuner unit (A/D input)
40
VSS
-
Ground terminal
41
QUALITY
I
Noise level detection signal input at SEEK mode (A/D input) (AEP, UK, Russian models only)
42
PARKING
I
Side brake (parking brake) detection input terminal    "L": brake on
43
TEMP
I
Temperature sensor input terminal (A/D input)
44
SA_IN
I
Spectrum analyzer data input terminal
56
MEX-R5
Pin No.
Pin Name
I/O
Description
45
KEY_ACK
I
Acknowledge signal (wake up signal) input terminal for the key entry    Acknowledge signal is
input to accept any function key in the standby status    On at input of "H"
46
BU_IN
I
Back up power supply detection signal input terminal    "L" is input at low voltage
47 to 49
MD0 to MD2
I
Setting terminal for the CPU operational mode
50
TUN_ATTIN
I
Attenuate request signal input from the tuner unit (AEP, UK, Russian models only)
51
DAVN
I
Synchronize detection signal input of RDS data block (AEP, UK, Russian models only)
52
AD_ON
O
A/D converter power control signal output
When the KEY_ACK (pin 45) that controls reference voltage power for key A/D conversion input
is active, "L" is output from this terminal to enable the input
53
Z_MUTE
I
Muting on/off control signal input from the D/A converter
54
SELFSW
I
Loading detection switch input from the DVD mechanism deck block
55
ACCIN
I
Accessory power detection signal input terminal    "L": accessory power on
56
UNISI
I
Serial data input from the SONY bus interface IC
57
UNISO
O
Serial data output to the SONY bus interface IC
58
UNICLK
O
Serial data transfer clock signal output to the SONY bus interface IC
59
BUSON
O
SONY bus on/off control signal output terminal    "L": bus on
60
SYSRST
O
Reset signal output to the SONY bus interface IC
61
NC
O
Not used
62
SIRCS
I
SIRCS signal input terminal
63
INSW
I
Disc insert detection switch input from the DVD mechanism deck block
64
NC
O
Not used
65
DSW
I
Chucking end detection switch input from the DVD mechanism deck block
66
NC
O
Not used
67
VMUTEIN
I
Video muting request signal input terminal    Not used
68
CD_RTS
I
Data send request signal input for UART communication
69
CD_CTS
O
Data send request signal output for UART communication
70
CD_RST
O
Reset signal output to the DVD processor and flash memory
71
RF_ON
O
Power on/off control signal output for the RF unit
72
LOAD
O
Loading motor control signal output terminal (loading direction)
73
EJECT
O
Loading motor control signal output terminal (eject direction)
74
NC
O
Not used
75
RSTX
I
System reset signal input from the reset signal generator and reset switch    "L": reset
76
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
77, 78
X1A, X0A
I/O
System clock input/output terminal (32.768 kHz)
79
VSS
-
Ground terminal
80, 81
X0, X1
I/O
System clock input/output terminal (3.8684 MHz)
82
VCC
-
Power supply terminal (+3.3V)
83
RCIN1
I
Rotary remote commander shift key input terminal
84
TELLATT
I
Telephone muting detection signal input terminal
At input of "H", the audio signal is attenuated by 20 dB
85
ILLIN
I
Illuminate line detect signal input terminal for the automatic dimmer control
"L": detected the illumination line (lighting is made dark)
86, 87
NC
O
Not used
88
CPRM_W
I
CPRM KEY writing mode detection input when internal flash memory writing    Not used
89
FLASH_W
I
Writing mode detection input when internal flash memory writing
90, 91
CNT A, CNT B
O
RF unit control signal output terminal
92, 93
NC
O
Not used
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