Pioneer PDP-501MX Service Manual page 68

PDP-501MX, PDP-V501X
7
CD74HCT4046AM
(PROGRESSIVE BLOCK : IC4713)
PLL IC
¶ Pin Assignment
PCP
1 16 V
OUT CC
PC1
OUT 2 15 PC3
COMP 3 14
IN SIG
VCO
4 13
OUT PC2
INH 5 12
R
2
C1
A 6 11
R
1
C1
B
7 10
DEM
8
GND 9
VCO
¶ Pin Function
Pin No. Pin Name
1 PCP
OUT
2
PC1
OUT
3
COMP
IN
4
VCO
OUT
5
INH
6
C1
A
7
C1
B
8
7
SAA4990H
(PROGRESSIVE BLOCK : IC4719)
PROZONIC IC
¶ Pin Assignment
80 79 78 77 76 75 74 73 72 71
TEST1/AP 1
TEST2/SP 2
RE1 3
V SS1 4
V
DD1 5
YUV C7 6
YUV 7
C6
YUV C5 8
YUV C4 9
YUV
C3 10
V 11
SS2
SAA4990H
V 12
DD2
YUV
C2 13
YUV
C1 14
YUV 15
C0
YUV 16
C11
YUV 17
C10
YUV 18
C9
19
YUV C8
CK 20
V SS3 21
V
DD3 22
23
WE2
RE2
24
25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
68
¶ Block Diagram
OUT
IN
V
CO
IN
OUT
DEM
OUT
OUT
IN
INHIBT
Pin Function
Phase comparator pulse output
Phase comparator 1 output
Comparator input
VCO output
Inhibit input
Capacitor C1 connection A
Capacitor C1 connection B
Ground(0V)
¶ Block Diagram
70 69 68 67 66 65
64 H O
YUV
63
AUX
62 SNCL
61
SNDA
YUV
60
SNRST
59
V
SS7
58 V DD7
57 YUV
D7
56 YUV D6
55 YUV
D5
YUV
54 YUV
D4
53 YUV
D3
52 V
SS6
51 V DD6
50 YUV D2
49 YUV
D1
48 YUV
D0
47 YUV
D11
46 V
SS5
45 V
DD5
44 YUV D10
43 YUV
D9
42 YUV
D8
41 HD
C1A
V
CC
CURRENT
AMP.
+
-
12
R 2
CURRENT
MIRROR
9
+
11 -
R
1
+
10 -
CURRENT
SOURCE
SWITCH
5
HC/HCT4046A
16 8
C
2
V GND
CC
PHASE COMP II OUTPUT
R 4
Pin No.
Pin Name
9
VCO
IN
10
DEM
OUT
11
R
1
12
R
2
13
PC2
OUT
14
SIG
IN
15
PC3
OUT
16
UV1
A REFPRMATTER
4
12
NOISE
REDUCTION
UV2
B REFPRMATTER
4
12
8
Y1
NOISE
8
REDUCTION
Y2
8
4
FORMATTER
12
C
8
MOVIE
PHASE
DETECTOR
C
1
VCO OUT COMP IN SIG IN
C1B
6 7 4 3 14
P P
N N
J Q
C
K Q
D
"1"
C
VCO
D
PHASE II
"1"
V
CC
P
N
PHASE PULSES
13
PHASE PULSE OUTPUT
Pin Function
VCO input
Demodulator output
Resistor R1 connection
Resistor R2 connection
Phase comparator 2 output
Signal input
Phase comparator 3 output
Positive supply voltage
LINE LINE
LINE
MEMORY 2 MEMORY 3 FORMATTER
MEMORY 1
MIXER MIXER
LINE
LINE
LINE MEMORY 2
MEMORY 3
MEMORY 1 MEDIAN
MIXER
FILTER
SAA4990H
MICROPROCESSOR
INTERFACE CONTROL BLOCK
(SNERT)
3 2
SNCL,SNDA,
CK VD,HD RE,WE
SNRST
PHASE COMP
OUT I III
2 15
PHASE I
PHASE III
S
Q
R
Q
Q
Q
Cd
Cd
Q
Q
1
12
YUV
D
RE1
3
RE2
WE2
2