Yamaha DVX-S200 Service Manual page 83

A B
DVR-S200 SCHEMATIC DIAGRAM (MAIN 2/4)
1
2
3
4
5
6
7
8
C D E
VIDEO
SWITCH
VIDEO DRIVER
VIDEO DRIVER
F G
REGULATOR
470/10
H I J
IC801 : NJM2595D
Video Switch
Vin1
13
Vin2 9
20k
Vin3 7
20k
Vin4 5
20k
Vin5 3
20k
W801
Page 82 B6
to MAIN (1) CB119
X : NOT USED
Page 81 F1
to DIGITAL CB305
EUROPE
* 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.
K
DVR-S200/NX-P200
V+ SW2 SW1 SW5
16 10 14 2
S5
S1
6dB 75ohm 1 Vout1
20k
S2
S6
S3 6dB 75ohm 15 Vout2
20k
S7
6dB 75ohm Vout3
11
20k
4 6 12 9
SW3 SW4 GND V-
IC802 : LA7104M
75Ω Video Driver
VIN1+ 1 16 +VCC
NFB1 VOUT1
2 6dB DR 15
MUTE1 3 14 GND
VIN2+ VOUT2
4 13
NFB2 6dB DR 12 DR CTL
5
–VCC1 VOUT3
6 11
VIN3+ 7 10 MUTE2
NFB3 8 6dB DR 9 –VCC2
IC803 : LA7108M
75Ω Video Driver
VIN1+ +VCC
1 16
NFB1 2 6dB DR 15 VOUT1
MUTE1 3 14 GND
VIN2+ VOUT2
4 13
NFB2 6dB DR 12 MUTE2
5
–VCC1 VOUT3
6 11
VIN3+ 7 10 MUTE3
NFB3 6dB DR –VCC2
8 9
83