Sony MEX-R1 Service Manual ▷ View online
49
MEX-R1
Pin No.
Pin Name
I/O
Description
51
PLLAVDD33
-
Power supply terminal (+3.3V)
52
PLLAVDD15
-
Power supply terminal (+1.5V)
53
PLLGND
-
Ground terminal
54
SLPF2
O
Loop filter connection terminal of VCO for system clock PLL
55
XO
O
System clock output terminal (36.864 MHz)
56
XI
I
System clock input terminal (36.864 MHz)
57 to 59
GIO14, GIO13,
GIO15
I/O
Not used
60
CLKOUT
O
Clock signal output terminal Not used
61
DVSS
-
Ground terminal
62
DVDD15
-
Power supply terminal (+1.5V)
63
MA3
O
Address signal output to the SD-RAM
64
MA4
O
Address signal output to the SD-RAM
65
MA2
O
Address signal output to the SD-RAM
66
MA5
O
Address signal output to the SD-RAM
67
MA1
O
Address signal output to the SD-RAM
68
MA6
O
Address signal output to the SD-RAM
69
DVSS
-
Ground terminal
70
DVDD33
-
Power supply terminal (+3.3V)
71
MA0
O
Address signal output to the SD-RAM
72
MA7
O
Address signal output to the SD-RAM
73
MA10
O
Address signal output to the SD-RAM
74
MA8
O
Address signal output to the SD-RAM
75
MBA1
O
Bank address signal output to the SD-RAM
76
MA9
O
Address signal output to the SD-RAM
77
MBA0
O
Bank address signal output to the SD-RAM
78
MA11
O
Address signal output to the SD-RAM
79
DVSS
-
Ground terminal
80
DVDD33
-
Power supply terminal (+3.3V)
81
DCS
O
Chip select signal output to the SD-RAM
82
DCS2
O
Chip select signal output terminal Not used
83
RAS
O
Row address strobe signal output to the SD-RAM
84
CAS
O
Column address strobe signal output to the SD-RAM
85
MCLK
O
Serial data transfer clock signal output to the SD-RAM
86
DWE
O
Write enable signal output to the SD-RAM
87
DQMU
O
Write mask signal output to the SD-RAM (upper byte)
88
DQML
O
Write mask signal output to the SD-RAM (lower byte)
89
MD7
I/O
Two-way data bus with the SD-RAM
90
MD8
I/O
Two-way data bus with the SD-RAM
91
MD6
I/O
Two-way data bus with the SD-RAM
92
MD9
I/O
Two-way data bus with the SD-RAM
93
DVDD15
-
Power supply terminal (+1.5V)
94
DVSS
-
Ground terminal
95
MD5
I/O
Two-way data bus with the SD-RAM
96
MD10
I/O
Two-way data bus with the SD-RAM
97
MD4
I/O
Two-way data bus with the SD-RAM
98
MD11
I/O
Two-way data bus with the SD-RAM
50
MEX-R1
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
51
MEX-R1
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
52
MEX-R1
MAIN BOARD IC501 MB90474PFV-G-215-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)
"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
"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
"L": muting on
13
VMUTE_F
O
Video muting on/off control signal output terminal for the front monitor output
"L": muting on
"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
Ver. 1.3
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