Yamaha RX-V650, Руководство по обслуживанию

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A B C D E F G H
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2
3
4
5
6
I J K L M N O
7
8
9
10
82
RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760
■
SCHEMATIC DIAGRAM (FUNCTION 2/2)
* 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.
CPU
C-INPUT SELECTOR
Y-INPUT SELECTOR
VIDEO DRIVER
Y/C MIX
ON SCREEN
S-SIGNAL DETECTOR
VIDEO SELECTOR
REGULATOR
SW
0
0
0
0
0
0
0
0
0
0
0
0
–4.9
4.9
4.9
0
0
0
3.6
3.5
4.9
4.9
–4.9
–4.9
0
0
0
0
0
0
0
0
4.9
4.9 4.8
0 0
0 0 0.1
0.1 3.5 3.6
0 0 0 0 0
00
4.9
4.7
–4.7
0
0
0
0
0
0
0
0
0
0
0
0
0
4.9
4.7
–4.7
0
0
0
0
0
0
0
0
0
0
0
0
0
4.7
4.7
4.7
4.4
4.4
1.9
0.9
0.9
0
0
0
0
0
0
0
0
0
0 0
1.9
–4.7
–4.7
0.9
0.9
4.7
4.7
4.7
–4.7
–4.7
–4.7
–4.7
–0.1
0
0
0
0
–4.7
–4.7
4.7
4.7
4.7
0
0
0
0
0.5
0
0.1
–0.1
0
0
–4.7
–4.7
0
0
3.5
0
0
3.5
0
0
4.7
2.5 2.5
0 0
0
0
0
0
0
2.5 2.5 2.6 2.5
4.7
4.7
4.4
4.4
4.8
4.8
–0.9
4.0
4.0
0.9
0.9
0
0.2
4.7
0 0
0.6
–
0.6
–
0.5
–
0.5
–
1.7
–
0.6
0
00
0 0
1.9 1.6
0
0
4.7 4.7 4.7 4.7 4.7 0.7
4.7
4.7
5.0
2.4
2.4 2.3
2.4
5.0
5.0
5.0
5.0
5.9
0
0
0
0
4.9
0 0 0
0 0
0 0 0 0 0 0
4.9 4.9 4.9 4.9 5.2
5.0 5.0 5.0 5.0 5.0 5.0
0 0
5.0
0
5.2
4.9
4.8
4.8
4.8
4.8
4.9
4.9
4.9
4.9
4.9
5.0
4.8
4.9
4.9 4.9 4.8 4.8 4.8
4.8 4.8 4.8 4.8 4.9
4.9
0.1
0.1
5.2
5.0
5.0
5.0 5.0 0.1 2.5 2.4 5.0 1.1
0 0 0 0
0
0
0
0
1.7
0.4
0
0.9
4.9
5.0
4.9
0
0
0
5.0
5.0
0
0
0
0.7
0
0
0
0
0.1
5.0
5.0
5.0
5.9
4.9
4.9
4.9
4.9
–11.6
4.9
–11.6
4.9
–11.6
4.9
–11.6
5.0
5.7
5.7
5.7
10.0
0
5.2
5.0 4.9
4.3
0.1
0.1
0
0 0
0.4 1.7
5.0
5.7
4.9
4.8
0
0
4.9
4.9
0.8
4.7
0.1
0
4.7
4.7
–
4.7
–
4.7
–
0.6 0.3
0.9 0.9
4.7
4.7
4.7 4.7
–
0.6
–
0.5
–0.5
–0.2
0.9
0.9
1.6
–0.2
0
0.5
0.5
4.4
0.8
0.9 0.9 0.9 1.8
1.8
0 0
0 0 0
2
3
CH2
3
CH1
4
X: NOT USED
O: USED / APPLICABLE
Page 84 C-7
TO OPERATION (1) CB801
Page 79 G-1
TO DSP CB1
Page 80 E-1
TO FUNCTION (1) CB304
Page 80 C-1
TO FUNCTION (1) CB303
Page 88 C-1
TO CONVERSION (1) CB704
Page 88 C-7
TO CONVERSION (1) CB705
Page 85 H-10
TO MAIN (2) CB122
Page 85 F-1
TO MAIN (1) CB3
M30622MHP-161FP
Point w (Pin 13 of IC502)
V : 2V/div, H : 40nsec/div
DC, 1 : 1 probe
0V
Point
r
(Pin 3 of IC606)
V : 2V/div, H : 40nsec/div
DC, 1 : 1 probe
0V
Point
e
CH 1 : Cathode of D501
CH 2 : Pin 12 of IC502
V : 5V/div (CH 1)
V : 5V/div (CH 2)
DC, 1 : 1 probe, H : 4.0sec/div
CH 2
CH 1
↑
AC POWER ON
(Connect the power cable)
↑
AC POWER OFF
(Disconnect the power cable)
IC903 : BU2092
Serial In/Parallel Out Driver
CONTROL
CIRCUIT
OUTPUT B
UFFER (OPEN DRAIN)
128BIT ST
ORA
GE REGISTER
128BIT SHIFT REGISTER
10
11
12
13
14
15
16
17
18 VSS
DATA
CLOCK
LCK
Q0
Q1
Q2
Q3
Q4
VDD
OE
Q11
Q10
Q9
Q8
Q7
Q6
Q5
1
2
3
4
5
6
7
8
9
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
MUTE2
VOUT3
MUTE3
—VCC2
IC902 : LA7108M
Video Amp
IC605 : LA7109-TLM
75
Ω
Video Driver
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
IC601, 602, 901 : MM74HC4051SJX
Analog Multiplexers/Demultiplexers
LEVEL
CONVERTER
BINARY TO 1-OF-8
DECODER WITH INHIBIT
11
10
9
8
7
6 16
13 SW
SW
SW
SW
SW
SW
SW
SW
14
15
12
1
5
2
4
3
INHIBIT VDD
X
A
B
C
VSS
VEE
X0
X1
X2
X3
X4
X5
X6
X7
INPUT STATES
INHIBIT
0
0
0
0
0
0
0
0
1
C
0
0
0
0
1
1
1
1
X
B
0
0
1
1
0
0
1
1
X
A
0
1
0
1
0
1
0
1
X
“ON” CHANNEL (S)
0
1
2
3
4
5
6
7
NONE
IC603, 604 : MM74HC4053SJX
Analog Multiplexers/Demultiplexers
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
IC503 : 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
IC607, 608 : TK15420MTL
Video Amp
– +
OUT1
–IN1
–VCC
+VCC
OUT2
1
2
3
4 5
+IN1 –IN2
+IN2
– +
6
7
8
1A
1Y
2Y
VDD
6A
1
2
3
4 11
2A 6Y
5A
12
13
14
3A
3Y
5Y
4A
5
6
7 VSS 4Y 8
9
10
IC609 : TC74HCU04AFEL
Hex Inverters
HTR-5760
* 電圧は、内部抵抗10MΩの電圧計で測定したものです。
* Z 印のある部品は、安全性確保部品を示しています。部品の交換が必要な場合、
パーツリストに記載されている部品を使用してください。
* 本回路図は、標準回路図です。改良のため予告なく変更することがございます。