Pioneer PDP-5050SX Service Manual page 194

1
SM5301BS (MAIN BOARD ASSY : IC6401, IC6601)
A
• Video Filter
Block Diagram
VCC1 VCC2
18 15
DISABLE
9
R /Y
25
INA INA
MUX
R /Y
27
INB INB
B
G /U
1
INA INA
MUX
G /U
3
INB INB
B /V
5
INA INA
MUX
B /V
7
INB INB
MUXSEL
22
IFC
RFC 20
CONT
C
21 16
VFC GND1
D
E
F
194
1
2
VCC3 VCC4
12 24
Buffer
R /Y
17
OUT
LPF
GSR1
26
Buffer
G /U
14 OUT
LPF
GSG1
2
Buffer
B /V
11
OUT
LPF
GSB1
6
THROUGH
23
13 10 19
GND2 GND3 GND4
PDP-5050SX
2
3
Pin Arrangement (Top view)
G /U
1
INA INA
GSG1
2
OUT
G /U 3
INB INB
NC
4
B /V
INA INA 5
OUT
GSB1 6
B /V 7
INB INB
(GND)
OUT
NC 8
DISABLE
9
GND3
10
B /V
OUT OUT 11
VCC3
12
GND2
13
G /U
14
OUT OUT
3
4
NC
28
R /Y
27
INB INB
26 GSR1
R /Y
25
INA INA
VCC4
24
THROUGH
23
MUXSEL
22
(GND)
21 VFC
RFC
20
GND4
19
VCC1
18
R /Y
17
OUT OUT
GND1
16
VCC2
15
4