A
B
C
D
E
G
H
1
2
3
4
5
6
I
J
K
7
8
DVR-S120/NX-P120
77
■
DVR-S120 SCHEMATIC DIAGRAM (MAIN 2/3)
FRONT_L
CENTER
0
0
0
4.8
4.7
0.1
10.8
10.8
-12.0
-11.8
5.0
4.8
4.4
5.0
5.0
0.1
0
0
0
0
0
0
0
0
0
0
0
-18.8
-18.8
-19.3
-29.7
0
0
0
0
11.8
11.8
11.8
-12.2
-12.2
-12.2
10.5
30.2
-5.1
4.8
0
4.8
0
0
0
0
0
0
5.0
0
-18.8
-18.8
-19.3
-29.7
0
-18.8
-18.8
-19.3
-29.7
0
-18.8
-18.8
-19.3
-29.7
0
0
2.5
2.5
5.0
5.6
5.0
5.0
5.0
-4.5
0
0
8.5
0
0
0
5.0
4.9
5.4
5.0
5.0
5.0
30.2
0.1
0.1
5.9
0.9
0.3
0.3
5.0
3.3
3.3
0
0
0
0
0
0
0
0
0
0
0
-21.9
5.0
5.0
0
0
0
0
5.0
5.0
0
0
0
0
5.0
5.0
-21.8
-29.7
-29.7
0
5.0
4.8
2.5
0
-18.8
-18.8
-19.3
-29.7
AC45.5
(1)
(1)
(1)
SYSTEM CONTROL
X : NOT USED
D-AMP
MODULE
D-AMP
MODULE
D-AMP
MODULE
D-AMP
MODULE
D-AMP
MODULE
D
VD MECHANISM
* All voltages are measured with a 10M
Ω
/V DC electronic volt meter.
* Components having special characteristics are marked
Z
and
must be replaced with parts having specifications equal to those
originally installed.
* Schematic diagram is subject to change without notice.
IC1 : NJM22279M
Video Switch
14
13
12
11
10
9
8
1
1
2
2
3
4
5
6
7
VIN3
SW1
VIN2
MUTE2
V
OUT2
GND2
GND1
V-
SW2
VIN1
MUTE1
V
OUT1
N.C
.
V+
IC14 : PQ025EZ5MZP
Voltage Regulator
DC INPUT (VIN)
DC OUTPUT (VO)
ON/OFF CONTROL (VC)
GND
2
5
3
1
I C
IC2–4 : NJM2068MD
Dual OP-Amp
–
+
OUT
1
–IN
1
–V
CC
+V
CC
OUT
2
1
2
3
4
5
+IN
1
–IN
2
+IN
2
–
+
6
7
8
w w w
.
x i a o y
u 1 6 3 .
c o m
Q Q
3 7 6 3 1 5 1 5 0
9
9
2
8
9
4
2
9
8
T E L
1 3 9 4 2 2 9 6 5 1 3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
