Sony CDX-MP450X Service Manual ▷ View online
17
CDX-MP450X
Pin No.
Pin Name
I/O
Pin Description
78
MDATA7
I/O
Memory data 7 input/output
79
LDQM
O
SDRAM LDQM output to DRAM IC (IC520).
80
UDQM
O
SDRAM UDQM output to DRAM IC (IC520).
81
VDD
—
Power supply pin (+3.3 V)
82
MWE
O
SDRAM write enable output to DRAM IC (IC520).
83
VSS
—
Ground
84
SD-CLK
O
SDRAM system clock output to DRAM IC (IC520).
85
SD-CAS
O
SDRAM column address output to DRAM IC (IC520).
86
SD-RAS
O
SDRAM row address output to DRAM IC (IC520).
87
VDD
—
Power supply pin (+3.3 V)
88
SD-CS1
O
SDRAM bank select 1 output to DRAM IC (IC520). (Not used in this set)
89
VSS
—
Ground
90
SD-CS0
O
SDRAM bank select 0 output to DRAM IC (IC520).
91
VDD2.5
—
Power supply pin (+2.5 V)
92
NC
O
Not used. (Open)
93
VSS
—
Ground
94
NC
O
Not used. (Open)
95
VDD
—
Power supply pin (+3.3 V)
96
MADDR9
O
Memory address 9 output
97
VSS
—
Ground
98 – 100
MADDR11, 8, 10
O
Memory address 11, 8 and 10 output
101
VDD
—
Power supply pin (+3.3 V)
102
MADDR7
O
Memory address 7 output
103
VSS
—
Ground
104 – 106
MADDR0, 6, 1
O
Memory address 0, 6 and 1 output
107
VDD
—
Power supply pin (+3.3 V)
108
MADDR5
O
Memory address 5 output
109
VSS
—
Ground
110 – 112
MADDR2, 4, 3
O
Memory address 2, 4 and 3 output
113
VDD
—
Power supply pin (+3.3 V)
114
MADDR12
O
Memory address 12 output
115
VSS
—
Ground
116
MADDR13
O
Memory address 13 output
117
VDD2.5
—
Power supply pin (+2.5 V)
118
MADDR14
O
Memory address 14 output
119
VSS
—
Ground
120 – 122
MADDR15 – 17
O
Memory address 15 – 17 output
123
VDD
—
Power supply pin (+3.3 V)
124
MADDR18
O
Memory address 18 output
125
VSS
—
Ground
126, 127
MADDR19, 20
O
Memory address 19 and 20 output (Not used in this set)
128
ROM-CS
O
ROM chip select output to ROM IC (IC521).
129
RESERVED
I
Fixed at L in this set.
130
NC
O
Not used. (Open)
131, 132
GND
—
Ground
133
RESERVED
I
Fixed at L in this set.
134
VDD
—
Power supply pin (+3.3 V)
135
RESERVED
I
Fixed at L in this set.
136
VSS
—
Ground
137 – 141
RESERVED
I
Fixed at L in this set.
142, 143
VDATA0, 1
O
Video data bus 0 and 1 output (Not used in this set)
144
VDD2.5
—
Power supply pin (+2.5 V)
145
VDATA2
O
Video data bus 2 output (Not used in this set)
18
CDX-MP450X
Pin No.
Pin Name
I/O
Pin Description
146
VSS
—
Ground
147
RESERVED
I
Fixed at L in this set.
148
VDATA3
O
Video data bus 3 output (Not used in this set)
149
VDD
—
Power supply pin (+3.3 V)
150
VDATA4
O
Video data bus 4 output (Not used in this set)
151
VSS
—
Ground
152
VDATA5
O
Video data bus 5 output (Not used in this set)
153
RESERVED
I
Fixed at L in this set.
154, 155
VDATA6, 7
O
Video data bus 6 and 7 output (Not used in this set)
156
RESERVED
I
Fixed at L in this set.
157
HSYNC
I/O
Horizontal sync input/output (Not used in this set)
158
VSYNC
I/O
Vertical sync input/output (Not used in this set)
159
NC
O
Not used. (Open)
160
VDD
—
Power supply pin (+3.3 V)
161
NC
O
Not used. (Open)
162
VSS
—
Ground
163
DA-DATA1
O
Serial audio samples relative to DA-BCK clock.
164
DA-DATA2
O
Serial audio samples relative to DA-BCK clock. (Not used in this set)
165
NC
—
Not used. (Open)
166
DA-LRCK
O
PCM left-right clock output
167
DA-BCK
O
PCM bit clock output
168
VDD2.5
—
Power supply pin (+2.5 V)
169
DA-XCK
O
Audio external frequency clock output
170
VSS
—
Ground
171
DAI-DATA
I
PCM input data, two channels. (Not used in this set)
172
DAI-LRCK
I
PCM input left-right clock (Not used in this set)
173
DAI-BCK
I
PCM input bit clock (Not used in this set)
174
RESERVED
I
Fixed at L in this set.
175
VDD
—
Power supply pin (+3.3 V)
176
A-VDD
—
Analog power supply pin (+3.3 V)
177
VCLK
I
Video clock input
178
SYSCLK
I
system clock input
179
A-VSS
—
Analog ground
180
CD-DATA
I
Serial CD data input
181
VDD
—
Power supply pin (+3.3 V)
182
CD-LRCK
I
Programmable polarity 16-bit word synchronization to the decoder (right channel HIGH).
183
VSS
—
Ground
184
CD-BCK
I
CD bit clock input
185
CD-C2PO
I
Asserted HIGH indicated a corrupted byte.
186 – 190
RESERVED
I
Fixed at L in this set.
191
NC
O
Not used. (Open)
192
RESERVED
I
Fixed at L in this set.
193
VDD
—
Power supply pin (+3.3 V)
194
NC
O
Not used. (Open)
195
VSS
—
Ground
196
VSS1
—
Ground
197
VDD2.5
—
Power supply pin (+2.5 V)
198
VSS1
—
Ground
199
VSS
—
Ground
200
VSS1
—
Ground
201
HOST8SEL
I
Host select input
202 – 204
HADDR0 – 2
I
Host address bus 0 – 2 input
205
DTACKSEL
I
Data acknowledge select input
19
CDX-MP450X
Pin No.
Pin Name
I/O
Pin Description
206
CS
I
Host chip select input
207
R/W
I
Read/write strobe input in I mode.
208
RD
I
Read strobe input in M mode.
20
CDX-MP450X
• IC801 µPD17708GC-618-3B9 (SYSTEM CONTROL)
Pin No.
Pin Name
I/O
Pin Description
1
SIRCS
I
Wireless remote commander input
2
SELF SW
I
Self switch input
3
DOOR
I
Front panel open/close detection input
4
NOSE
I
Front panel with/without detection input
5
NC
—
Not used. (Connect to ground)
6
SYSRST
O
Reset output for slave microcomputer IC.
7
DOOR IND
O
CD door open/close detection output
8
MUTE
O
Mute on/off control output
9, 10
NC
—
Not used. (Open)
11
BAND-SW
I
Initial setting switch input (Fixed at H in this set)
12
AREA1-SW
I
Destination check input 1 (Fixed at L in this set)
13
AREA2-SW
I
Destination check input 2 (Fixed at H in this set)
14
NC
—
Not used. (Open)
15
PARK
I
Parking signal detection input
16
TEL MUTE
I
Attenuator on/off control input
17
POWER IC ON
O
Power supply control output to power amplifier IC.
18
SEEK
O
SEEK output
19
AMP MUTE
O
Output control to power amplifier IC.
20
NC
—
Not used. (Open)
21
GND3
—
Ground
22
KEYIN3
I
Key input of A/D converter (Fixed at L in this set)
23, 24
KEYIN2, 1
I
Key input of A/D converter.
25
ROT-IN
I
Rotary commander A/D value input
26
S-METER
I
S-meter input
27
TEST-SW
I
Initial setting switch input (Fixed at H in this set)
28
AM IFC
I
AM center frequency counter input
29
FM IFC
I
FM center frequency counter input
30
VDD
—
Power supply pin
31
VCOH FM
I
FM input at VCO is FM.
32
VCOL AM
I
AM input at VCO is AM.
33
GND1
—
Ground
34
NC
—
Not used. (Open)
35
EO1 PDOUT
O
Error out output
36
TEST0
I
Fixed at L in this set.
37, 38
NC
—
Not used. (Open)
39
LCL/DX
O
LOCAL/DX select output
40
BEEP
O
Beep output
41
ACC IN
I
Accessory input (L: ACC)
42, 43
RE1, 2
I
Rotary encoder input 1, 2
44
NC
—
Not used. (Open)
45
MONO
O
Monaural output (H: Monaural, L: Stereo)
46
SD
I
SD input
47
VOL CE
O
Chip enable output for Electric volume IC.
48
VOL CLK
O
Clock output for Electric volume IC.
49
VOL DATA
O
Data output for Electric volume IC.
50
NC
—
Not used. (Open)
51
FM ON
O
FM system power control output (H: FM ON)
52
AM ON
O
AM system power control output (H: AM ON)
53
LCD CE
O
Chip enable output for LCD driver IC.
54
ILL ON
O
Front panel backlight control output (H: Illumination ON)
55
NC
—
Not used. (Connect to ground)
56, 57
NC
—
Not used. (Open)
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