Yamaha RX-V359, Руководство по обслуживанию

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A
1
2
3
4
5
6
7
8
9
10
B C D E F G H I J K L M N
RX-V359/HTR-5930
SCHEMATIC DIAGRAM (MAIN 2/2)
60
★
All voltages are measured with a 10M
Ω
/V DC electronic volt meter.
★
Components having special characteristics are marked s and must be replaced
with parts having specifications equal to those originally installed.
★ Schematic diagram is subject to change without notice.
0 0 13.6 11.3 11.3 0.8 0.1 0.1 0.1 0.1 4.7 4.3 -28.1 12.4 -12.4 -12.1 -12.4 11.5
0
2.2
11.7
4.9
4.9
1.2
4.8
0.8
4.8
4.8
1.2
0.5
0.8
4.7
6.1
4.8
4.8
4.8
4.8
4.8
4.8
4.9
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
4.8
4.8
4.8
0
0 0.5
0.5
0.1
1.6
4.9
4.9
4.9
4.8
1.2
4.8
4.8 0.1 0.1 0.1 4.9 4.9
0.1 0.1
0.1
4.8
0.1
0.1 0.1 0.1 4.8 4.8 0
0.1
4.8 4.7 5.1 0.1
0
0
4.8 6.1
11.3 0.1 0.1
4.8
4.9
8.6
9.3
9.4
0
5.0
11.7
2.2
2.1 4.3
1.6
0 0
1.9
0
0
0.1 0.1 4.7 4.7
1.7
4.9
4.8
-12.5
4.9
4.8
-12.5
4.9
4.8
-12.5
4.9
4.8
-12.5
11.3
0.1
0
A-3
0.1 0.1
0.1
0.1
0.1
0.1
5.0
0
0
0
0
4.8
4.8
0.1
0.1
0.1
0.1
0.1
-4.8
-4.8
0
0
5.0
4.8
0.1
6.3 6.2
6.2
0.8
11.8
5.5
0.1
0
3.9 3.9 3.9 3.9 4.8 4.8
0.3
0
11.8
4.9
4.9
4.3
4.8
0
0 0
0.1
0.1 6.8
6.2
7.4
1
6.2
6.2
5.7
5.7 5.1
4.8
0
0.1
4.8
5.7 13.5
13.5 5.7
0 0 0
5.7
4.9 4.9 4.9
4.3
13.5
12.8
B-1
0.1
0 0
2.3
4.9
4.8 4.8
4.8 4.8
4.8 0.2 0.1 4.8 4.8 4.8
4.8 4.8 4.8
4.8
5.0
5.0 5.0 5.1 0.2 1.8
2.4
0.1
0
0.8
A-2
2
IC241 : LC72722PM
RDS Signal Processor
REFERENCE
VOLTAGE
57 kHz
bpf
(SCF)
CCB
TEST
PLL
(57 kHz)
ANTIALIASING
FILTER
SMOOTHING
FILTER
RAM
(24 BLOCK DATA)
ERROR CORRECTION
(SOFT DECISION)
SYNC / EC
CONTROLLER
SYNC
DETECT-1
DATA
DECODER
CLOCK
RECOVERY
(1187.5 Hz)
MEMORY
CONTROL
OSC/DIVIDER
VREF
CLK (4.332 MHz)
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
IC391 : LA7956
Video Switch
1 2 3 4 5 6 7 8 9
VIDEO
OUT
A B VIN1 GND VIN2 VCC VIN3 VIN4
DRIVER
6dB
AMP
CONTROL
VIDEO SWITCH
4 INPUT 1 OUTPUT
IC701 : NJM2586AM
Wide band 3-input 1-output 3-circuit video amplifier
9
10
8
5
6
7
4
3
2
1
11
12 13
16
15
14
17
18
19
20
21
22
23
24 CH1 IN1
CH1 IN3
CH1 IN2
SW 1
SW 2
GND
CH1 OUT
GND
CH2 OUT
CH3 IN2
CH3 IN3
V
+
2
V
-
2
CH2 IN3
CH2 IN1
CH3 OUT
CH3 IN1
GND
CH2 IN2
GND
PS
75
Driver
Bias
Cont2
Cont1
Cont1
Cont2
Cont1
Cont2
6dB
Amp
Bias
Bias
Bias
Bias
Bias
Bias
Bias
75
Driver
75
Driver
Bias
6dB
Amp
6dB
Amp
GND GND
V + 1
POINT B-1 1 /EMITTER of Q258, 2 /COLLECTOR of Q259
1
2
Q258 (E)
Q259 (C)
POWER ON
(connect the power cable)
POWER OFF
(disconnect the power cable)
POWER ON
(connect the power cable)
POINT A-2 Pin 13 of IC242 POINT A-3 Pin 12 of IC241
1
2
Q258 (E)
Q259 (C)
to FUNCTION (1)_CB452
Page 57 G1 to MAIN (1) POWER Section
to FUNCTION (4)_CB651
P
age 58
H7
to DSP_CB802 P
age 56
K1
to DSP_CB801
Page 56 G1
to TUNER
MAIN (1)
u-COM Section
MAIN (3)
MAIN (5)
SELECTOR
&
VIDEO AMP
SELECTOR
&
VIDEO AMP
SWITCH
&
BUFFER AMP
MICROPROCESSOR