Teac DV-R101 Service Manual page 66

I.C PIN DESCRIPTIONS (VIDEO SW : NJM2296) : IC79, 80
PIN No PIN Name
1 VOUT 1
2 SW 5
3 VIN 5
4 SW 3
5 VIN 4
6 SW 4
7 VIN 3
8 V-
9 VIN 2
10 SW 2
11 VOUT 3
12 GND
13 VIN 1
14 SW 1
15 VOUT 2
16 V+
BLOCK DIAGRAM
13
Vin1
Vin2
9
20k
Vin3
7
20k
Vin4
5
20k
Vin5
3
20k
I/O
OUTPUT VIDEO SIGNAL
O
SWITCH FOR SELECT SIGNAL
I INPUT VIDEO SIGNAL
SWITCH FOR SELECT SIGNAL
INPUT VIDEO SIGNAL
I
SWITCH FOR SELECT SIGNAL
I INPUT VIDEO SIGNAL
NEGATIVE SUPPLY VOLTAGE
INPUT VIDEO SIGNAL
I
SWITCH FOR SELECT SIGNAL
O OUTPUT VIDEO SIGNAL
GND
INPUT VIDEO SIGNAL
I
SWITCH FOR SELECT SIGNAL
O OUTPUT VIDEO SIGNAL
POSITIVE SUPPLY VOLTAGE
+
V SW2
16
S2
S4
S3
4 6
SW3 SW4
Function
SW1 SW5
10 14 2
S5
S1
20k
S6
20k
S7
20k
12
GND
- 66 -
75Ω
6dB
Amp Driver
75Ω
6dB
Amp Driver
6dB
75Ω
Amp
Driver
8
-
V
Vout1
1
Vout
15
Vout
11