Yamaha RX-V357, 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-V357/HTR-5830
SCHEMATIC DIAGRAM (MAIN 2/2)
58
★
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.
A-1
1
2
11.9 9.6
10.4
0
10.3
4.8
0 4.8 4.9
4.8
0
0
4.9
11.6 0.1 0.1
4.8
4.2
4.9
4.9
13.0
13.0
12.9
0.3
0.3
0
0
4.8
6.8
0
6.8
0
0
0
0
4.9
12.9
12.3
7.4
0
6.2
5.6
6.2
5.6
6.2
5.6
5.1 5.6
5.6
0
0
0
0
0
0 0
4.8
1.2
0
0
0
1.2
0.5 0.5
4.9
4.9 4.9
4.9 5.1 0 0 0 0
4.8
0
0 0
0
4.9 4.9 4.9
4.9 0 0
4.9
0 0 0
4.9
0
4.9
4.9
4.9
0
0
1.1
1.2
4.8
0.5
0
0.8
4.8
4.9
4.9
4.8
0
4.8
4.9
0
4.9 0.5
0
0.1 4.9
0 0
4.8 4.9
4.9 2.4
0
2.3 4.9 4.9
0
0
5.0
4.9 4.9
4.9
0.4
4.9
4.9
4.9
4.9
0
0.9
0
0
4.8
0
0
0
0
4.9
0
0
11.6
11.9
4.8
-12.0
-12.1
0
0
0.7
4.9
4.8
-12.0 4.9
4.8
-12.0 4.9
4.8
-12.1 4.9
4.8
-12.1 4.9
11.8
5.6
6.9
3.9 3.9
11.8
3.9
0
3.9 4.9 4.9 6.3
0
6.3
6.3 6.3
7.3
0
5.0
0
0
0 5.0
0
5.0
0
5.0
4.8
0
0
0
0
0
0
0
0
0
4.9
0
4.9
0
4.9
0
0
0
0
-4.9
0
0
0.7
0
A-2
MAIN (1) µ
-COM Section
MAIN (3)
MAIN (5)
FREQUENCY STEP
INPUT
SELECTOR
MUTE
CONTROL
RDS
DECODER
MICRO COMPUTER
POWER DETECTOR
& RESET
LEVEL
SHIFT
Page 55
to FUNCTION (1)
CB452_12 pin
G1
to MAIN (3)
CB391
K1 Page 57
to MAIN (1) Power Section
A7
to MAIN (1)
CB701
M1
P
age 57
to MAIN (6)
W382A
J9
to TUNER
P
A
CK
to MAIN (1) Power Section
W245
G3
to MAIN (1)
W241
A4
Page 54
to DSP
CB805
L8
P
age 56
to FUNCTION (4)
CB651_10pin
H7
P
age 54
to DSP
CB802_9pin
to Rom
Wr
iter
G1
IC241: LC72722PM
RDS Signal Processor
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
4 INPUT 1 OUTPUT
VIDEO SWITCH
POWER ON
(Connect the power cable)
POWER ON
(Connect the power cable)
POWER OFF
(Disconnect the power cable)
1 Q258 E
2 Q259 C
1 Q258 E
2 Q259 C
Point A-1 Pin 13 of IC242 Point A-2 emitter of Q258 1
and collector of Q259 2
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
X : NOT USED
O : USED / APPLICABLE