Sony ExwaveHAD SSC-DC50A, Service Manual

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