Yamaha DVR-S200, Руководство по обслуживанию

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A B C D E F G H
1
2
3
4
5
6
I J K L
7
8
DVR-S200/NX-P200
84
■
DVR-S200 SCHEMATIC DIAGRAM (MAIN 3/4)
* 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.
IC864 : LC72722PM
RDS decoder
+
REFERENCE
VOLTAGE
57kHz
bpf
(SCF)
CCB
TEST
PLL
(57kHz)
ANTIALIASING
FILTER
SMOOTHING
FILTER
RAM
(24 BLOCK DATA)
ERROR CORRECTION
(SOFT DECISION)
SYNC/EC
CONTROLLER
SYNC
DETECT-1
DATA
DECODER
CLOCK
RECOVERY
(1187.5Hz)
MEMORY
CONTROL
OSC/DIVIDER
VREF
CLK(4.332MHz)
SYNC
DETECT-2
VDDA
VSSD
VDDD
RDS-ID
SYNC
SYR
VSSA
MPX IN
DO
CL
DI
CE
T1
T2
T3
T4
T5 T6 T7
X IN
VREF FL OUT C IN
X OUT
3 14
15
19
18
24
1 5 6
4
2
20
21
22
23
7
8
9
10
11 16 17 13 12
REGULATOR
VIDEO
SWITCH
VIDEO DRIVER
VIDEO DRIVER
5.0
0
0
-0.1
5.0
0
0
0
0
0
0
0
5.0
5.0
2.4
2.5
2.5
2.5
2.5
2.5
4.9
0
11.8 11.8
5.6 9.1
9.1
8.5
5.6
0
0
5.0
-0.7
-4.9
-4.9
5.0
5.0
5.0
0
0
0
0
0
0
0
0
0
0
0
0
0
4.1
11.8
11.8
0.1
0.1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
4.9
4.9
4.9
0
0
0
0
0
0
-4.9
-4.9
-4.9
4.9
4.9
0
0
0
0
0
4.9
0
-0.1
-0.1
5.0
-4.9
-4.9
-4.9 -4.9
-4.9
-4.9
0
0
0
0
0
4.1
0
0
5.0
-0.1
0
-0.1
5.0
4.8
4.8
0
0 0 0 0
-4.9
0
0
4.8
0
4
EUROPE
4
5
13
6
1
2
15
3
7
8
11
10
Page 81 F1
to DIGITAL CB305
Page 82 B6
to MAIN (1) CB119
470/10
W801
13 Vin1
SW2
9 Vin2
7 Vin3
5 Vin4
3 Vin5
20k
1
Vout1
15
Vout2
11 Vout3
20k
20k
S2
20k
20k
6dB 75ohm
S3
S1
S5
10
V+
16
SW3
4
SW4
6
GND
12
V-
9
SW1
14
SW5
2
20k
6dB 75ohm
S6
20k
6dB 75ohm
S7
IC865 : NJM2595D
Video Switch
6dB DR
6dB DR
6dB DR
1
2
3
4
5
6
7
8
36
35
34
33
32
31
30
29
VIN1+
NFB1
MUTE1
VIN2+
NFB2
–VCC1
VIN3+
NFB3
N.C.
N.C.
+VCC1
VOUT1
GND
VOUT2
DR CTL2
VOUT3
MUTE4
–VCC4
N.C.
N.C.
6dB DR
6dB DR
6dB DR
11
12
13
14
15
16
17
18
26
25
24
23
22
21
20
19
VIN4+
NFB4
MUTE2
VIN5+
NFB5
–VCC2
VIN6+
NFB6
+VCC2
VOUT4
GND
VOUT5
DR CTL1
VOUT6
MUTE3
–VCC3
28
27
9
10
IC861 : LA7109
75
Ω
Video Driver
6dB DR
6dB DR
6dB DR
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
VIN1+
NFB1
MUTE1
VIN2+
NFB2
–VCC1
VIN3+
NFB3
+VCC
VOUT1
GND
VOUT2
DR CTL
VOUT3
MUTE2
–VCC2
IC863 : LA7104M
75
Ω
Video Driver
16
VDD
LOGIC LEVEL
CONVER
TER
12 OX
7
VEE
6 INH
OUT C IN
13 IX OUT C IN
2
OY OUT C IN
1 IY OUT C IN
5 OZ OUT C IN
3
IZ OUT C IN
4
Z-COMMON
15
14
X-COMMON
Y-COMMON
9
C
10
B
11
A
8
VSS
INHIBIT
(Pin 6)
L
L
L
L
L
L
L
L
H
CONTROL INPUTS “ON” CHANNEL
0X (Pin 12), 0Y (Pin 2), 0Z (Pin 5)
1X (Pin 13), 1Y (Pin 1), 1Z (Pin 3)
0X, 0Y, 0Z
1X, 0Y, 0Z
0X, 1Y, 0Z
1X, 1Y, 0Z
0X, 0Y, 1Z
1X, 0Y, 1Z
0X, 1Y, 1Z
1X, 1Y, 1Z
NOTE
C
(Pin 9)
L
L
L
L
H
H
H
H
*
B
(Pin 10)
L
L
H
H
L
L
H
H
*
A
(Pin 11)
L
H
L
H
L
H
L
H
*
* Don’t Care
IC862 : TC74HC4053AF (EL)
Analog Multiplexers/Demultiplexers
Point
r
(Pin 12 of IC864)