Pioneer PDP-502MX Service Manual page 21

PDP-502MX, PDP-502MX
No.
Name
I/O
Description
20
DGNDADTTL
—
GND
for
TTL
output
of
ADC
21
RAO
0
Data output
of
R
channel
port
A
side
22 RA1
23
DGNDAD3
—
Digital
GND
of
ADC
24 RA2
1
1
0
Data
output
of
R
channel
port
A
side
28
RA6
29
AGNDAD3
—
Analog
GND
of
ADC
30
DGNDAD3
—
Digital
GND
of
ADC
31
RA7
0
Data output
of
R
channel
port
A
side
32
DVccADTTL
—
Power
supply (5V)
for
TTL
output
of
ADC
33
DGNDADTTL
—
GND
for
TTL
output of
ADC
34
RBO
1 1
0
Data output
of
R
channel
port
B
side
41
RB7
42
DVccADTTL
—
Power
supply (5V)
for
TTL
output
of
ADC
43
DGNDAD3
—
Digital
GND
of
ADC
44
DGNDADTTL
—
GND
for
TTL
output
of
ADC
45
BAO
1 1
0
Data
output of
B
channel
port
A
side
49
BA4
50
DGNDAD3
—
Digital
GND
of
ADC
51
BA5
1
1
0
Data
output of
B
channel
port
A
side
53
BA7
54
DVccADTTL
—
Power
supply (5V)
for
TTL
output
of
ADC
55
DGNDADTTL
—
GND
for
TTL
output
of
ADC
56
BBO
1 1
0
Data
output of
B
channel
port
B
side
58
BB
59
DGNDAD3
—
Digital
GND
of
ADC
60
BB3
1 1
0
Data output of
B
channel
port
B
side
64
BB7
65
DVccADTTL
—
Power
supply (5V)
for
TTL
output of
ADC
66
DGNDAD3
—
Digital
GND
of
ADC
67
DGNDADTTL
—
GND
for
TTL
output of
ADC
68
GAO
1 1
0
Data
output of
G
channel
port
A
side
75
GA7
76
DVccADTTL
—
Power
supply (5V)
for
TTL
output
of
ADC
77
DGNDADTTL
—
GND
for
TTL
output
of
ADC
78
GBO
0
Data output
of
G
channel
port
B
side
79
DGNDAD3
—
Digital
GND
of
ADC
80
AGNDAD3
—
Analog
GND
of
ADC
81
GB1
1 1
0
Data
output of
G
channel
port
B
side
85
GB5
No.
Name
I/O
Description
86
DGNDAD3
—
Digital
GND
of
ADC
87
GB6
0
Data output
of
G
channel
port
B
side
88
GB7
89
DGNDADTTL
—
GND
for
TTL
output
of
ADC
90
DVccADTTL
—
Power
supply
(5V) for
TTL
output of
ADC
91
DVccAD
—
Digital
power
supply (5V) of
ADC
92
DVccAD3
—
Digital
power
supply (3.3V) of
ADC
93
VRB
0
Bottom
reference voltage
(1
.9V) output of
ADC
94
AVccAD3
—
Analog power
supply
(3.3V) of
ADC
95
AGNDADREF
—
GND
for reference voltage of
ADC
96
DVccPLLTTL
—
Power
supply (5V)
for
TTL
output of
PLL
97
DGNDPLLTTL
—
GND
for
TTL
output
of
PLL
98
XCLK 0
CLK
inversion output
99
CLK
0
CLK
output
100 1/2XCLK
0
1/2
CLK
inversion
output
101
1/2CLK
0
1/2
CLK
output
102
DPGND
—
GND
103
DSYNC/DIVOUT
0 DSYNC
signal
output/DIVOUT
signal output
104
UNLOCK
0
UNLOCK
signal
output
105
SOGOUT
0
Sync,
signal output of
Sync, on
G
106
HOLD
1
Disable signal input of
phase comparison
107
XTLOAD
1
Reset
setting of
programmable
counter
108
EVEN/ODD
1
Sampling
clock
phase
pulse input of
ADC
109
XCLKIN
Negative
clock input for
TEST
110 CLKIN
1
Positive clock input for
TEST
111
SYNCIN1
1
Sync, signal input
1
112
SYNCIN2
1
Sync, signal input
2
113
CLPIN
1
Clamp
pulse
input
114 DVccPLL
—
Digital
power
supply
(5V) for
PLL
115
DGNDPLL
—
Digital
GND
for
PLL
116
AVccVCO
—
Analog power
supply
(5
V)
for
VCO
of
PLL
117
AGNDVCO
—
Analog
GND
for
VCO
of
PLL
118
RC1
—
Connected
to
PLL
loop
filter
(2.1V)
119
RC2
—
Connected
to
PLL
loop
filter (2
to
4.5V)
120 AVcclR
—
Analog power
supply (5V)
for
IREF
121
IREE
1
Current
setting
(1
.2V)
122
DPGND
—
GND
123
AGNDIR
—
Analog
GND
for
IREF
124
G/YIN1
1
G/Y
signal input
1
125
AVccAMPG
—
Power
supply (5V)
for
G/Y
amplifier
126 G/YIN2
1
G/Y
signal input
2
127
AGNDAMPG
—
GND
for
G/Y
amplifier
21