Sony SSC-DC50A Service Manual page 47

NJM2230M (JRC)FLAT PACKAGE
NJM2230M(TE2)
VIDEO SIGNAL DETECTOR
—TOP VIEW—
M.M. TIM 1 V 8
IN CC
COMP. SYNC 2 7 M.M.C
IN IN
SYNC 3 6 SYNC DET
OUT
SSG SYNC 4 GND 5
IN
2
COMP. SYNC
4
SSG SYNC
COMPARATOR
1
M.M.
M.M. TIM
7
LPF
M.M.C
COMPARATOR
PQ09RA1 (SHARP)+9 V
PQ09RF11
POSITIVE VOLTAGE REGULATOR (1A)
—TOP VIEW—
1
V
IN
2
V
O
4
ON/OFF
GND
3
1 2 3 4
S-80827ALUP-EAQ-T2 (SEIKO I&E)2.7 V
C-MOS VOLTAGE DETECTOR WITH N-CHANNEL OPEN DRAIN OUTPUT
—TOP VIEW—
2 1
V DD OUT
GND
3
1 2 3
V
DD
2
OUT V GND
DD
VOLTAGE
DETECT
3
GND
TA75W393FU (TOSHIBA)
TA75W393FU-TE12R
DUAL COMPARATORS
—TOP VIEW—
8 7 6 5
V
CC
_
+
+
_
V
EE
1 2 3 4
SSC-DC50A/54A (UC)
SSC-DC50AP/54AP/58AP (CE)
2
COMP. SYNC
4 3
SSG SYNC
SYNC
1
M.M. TIM
6
SYNC DET
OUT 7
M.M.C
3
SYNC
6
SYNC DET
1
OUT
TC4W53FU (TOSHIBA)CHIP PACKAGE
TC4W53FU(TE12R)
C-MOS 2-CHANNEL MULTIPLEXER/DEMULTIPLEXER
—TOP VIEW—
1
8 V 6 ch1
DD
C 1
7 ch0
2 7
OPEN
3
6
5 A
GND 4
5
INH V
EE
2 3
CONT. INPUT ON
CHANNEL
INH A
0 0 ch0
0 : LOW LEVEL
0 1 ch1
1 : HIGH LEVEL
1 x OPEN
x : DON'T CARE
TC74HC4053AFT(EL) (TOSHIBA)FLAT PACKAGE
C-MOS TRIPLE 2-CHANNEL ANALOG MULTIPLEXER/DEMULTIPLEXER
—TOP VIEW—
12
X0
Y1 1 16
I/O V
DD
13 X1
OPEN
11 A
Y0 2 15 Y
I/O I/O
2
Y0
Z1 3 14 X
I/O I/O
1
Y1
OPEN
10 B
Z 4 13 X1
I/O I/O
5 Z0
Z0 5 12 X0
I/O I/O
3 Z1
OPEN
EN 9 C
6 11 A
IN IN
7 10 B
V IN
EE
8 GND 9 C
IN
CONTROL INPUTS
SELECT ON CHANNEL
EN
C B A
0 0 0 0 Z0 Y0 X0
0 0 0 1 Z0 Y0 X1
0 0 1 0 Z0 Y1 X0
0 0 1 1 Z0 Y1 X1
0 1 0 0 Z1 Y0 X0
0 1 0 1 Z1 Y0 X1
0 1 1 0 Z1 Y1 X0
0 : LOW LEVEL
0 1 1 1 Z1 Y1 X1
1 : HIGH LEVEL
1 x x x OPEN
x : DON'T CARE
TC74VHC123AFT(EL) (TOSHIBA)FLAT PACKAGE
C-MOS DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATORS
—TOP VIEW—
R C
V
DD
Q A
Q R B
D
9
16 15 14 13 12 11 10
V
DD
R
D
Q Q
Q
Q
R
D
GND
1 2 3 4 5 6 7 8
A
Q
R
B D Q
V
DD
C R
14 6
15 7
C CR C CR
13 5
Q Q
1 9
2 10
4 12
Q Q
R R
D D
3 11
X 14
15
Y
Z 4
EN V
EE
6 7
INPUTS OUTPUTS
R A B Q Q
D
0 x x 0 1
1 1 x 0 1
x 0 0 1
1
1 0
0 : LOW LEVEL
1 1
1 : HIGH LEVEL
0 1
X : DON'T CARE
OUTPUT PULSE WIDTH = 0.46 CR
6-9
IC