A
1
2
3
4
5
6
7
8
9
10
N
M
L
K
J
I
H
G
F
E
D
C
B
118
RX-V681/RX-A760
HPE
+5.6
(CONTROL)
FLD_SC
K
FLD_MOS
I
RM
-
RM
+
Head Phone
(ON/OFF
)
For EM
C
+12V
+3.3M
AM
HP_N_DET
STBY
FG
FM
VOL_RB
HD_LED
E
PRESET
+Data
DGND
U S B
N.
C
-12V
MIC_N_DET
+3.3M
DGND
TUNING
E
INFO
OPE(6)
to Digital
MI
C
DGND
VBus
to OPE(2)
INPUT
to Digital
to Digital
MEMORY
OPE(5)
+5.6
CONTROL
301-340
VBus
VOL_RA
VOL_RA
3001-3400
6Pin
VOL_RB
FG
GND
-12V
GND
25Pi
n
FG
PRV2
PROGRAM
FG
FLD_N_C
S
PURE DIREC
T
FG
PD_LED
PD_LED
-12V
OPE(7)
OPE(1)
L=85mm
REM_IN
RADIO
TV
DC-DC/AC Converter for VFD
(ZONE2
)
DGND
FLD_N_RST
DGND
MIC_N_DET
BD
PSW_DE
T
VOLUME
FG
E
PSW_DET
NE
T
MAIN
+5.6
GND
MIC
From
DGND
TONE
(ZONE2
)
KEY2
+12V
STRAIGHT
-Data
PURE DIREC
T
SCENE2
DGND
STANDBY/ON
VBus
+3.3
M
KEY1
KEY2
+3.3FLD
FLD_PO
N
SCENE3
HPR
DGND
STBY_LE
D
+12V
VIDEO(1)
SCENE1
DGND
HPL
FG
SCENE4
Countermeasures of Discharge test.
MIC
PSW_DET
MIC_N_DET
HD_LED
to MAIN
+5.6
LG
DA
/CP
/RESET
M/S
DG
DG
LG
/CS
VDIS
P
VDIS
P
V
DISP
VDD
VDD
OSC1
OSC0
FLP_PO
N
ISYNC
DMY-GND
DMY-VDD
DO
SYNCO
XOUT
DV
D
MF00512
MF00910
1
5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22
30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65
69
23 24
29
P2
6
P1
2
P1
6
P1
0
G6
P6
P5
FLD_N_C
S
VOL_RB
KEY2
P2
0
P2
1
VOL_RA
P1
1
PSW_DET
P2
8
P2
5
MIC_N_DET
P1
7
RM+
MIC_N_DET
P3
0
G16I
G16I
P4
P1
3
G15I
PSW_DET
PD_LED
P2
4
KEY1
P3
3
P8
P9
G1
2
MIC
P1
9
KEY1
P3
G2
P1
5
G1
1
P2
9
VOL_RA
G1
3
VOL_RB
PD_LED
G9
G4
P7
FLD_MOS
I
G1
4
G1
0
REM_IN
P1
4
P2
3
G7
FLD_N_RST
P2
2
G8
RM-
FLD_SC
K
G1
P2
7
G3
P3
2
G5
PSW_DE
T
KEY2
KEY2
MI
C
P3
5
P3
4
G3
P24
P4
G4
P23
G5
P22
G6
P21
G7
P20
G8
P19
G1
0
G9
G1
1
G1
2
P1
4
G1
3
P1
3
G1
4
P1
2
P35
P1
1
P34
P33
P32
P30
P29
P28
P27
P26
P1
0
P9
P8
P7
P1
P6
G1
P5
G2
P25
FLD_N_CS
RM
-
RM
+
FLD_MOSI
FLD_SC
K
FLD_N_RST
G1
6
G1
6
G1
5
G1
5
P31I
P1
6
P1
7
REM_I
N
P1
5
P31
P2
P2
P1
P2
I
P2
I
P3
P3
6
P3
7
P3
6
G1
7
G1
8
G1
7
G1
8
P18I
P
18I
P1
8
G19
G20
G2
0
G1
9
G20I
G20I
P3
7
R306
9
10
0
+
5.6
+5.6
SW30
4
SKRGAAD01
0
C3048
1/50
C3050
0.1/16
RP130Q331D-TR-F
IC302
VD
D
GN
D
VOUT
CE/C
E
C3003
10/16
W303
ST301
W302
no_use
DGND
C3030
220P(SL
)
D
3
0
0
4
8
2
2
4
-
1
0
S
D
R
D
/
S
5
3
R3062
47K
SW32
1
SKRGAAD01
0
10
K
R300
3
C3049
2.2/50
R3050
47
FG1
C3060
1000P(B)
R3073
1.0
C3040
0.1/16
W306
no_use
J3002
no_use
SW30
1
SKRGAAD01
0
FG3
1000P(B)
C
3036
R3015
1.5K
C3056
1000P(B)
R301
7
100K
+12V
W307
SRA-21T-3_70MM
R3075
1K
R3071
1.2K
CB308
PHL
C303
7
1/25
R3023
2.2K
FG1
CB305
51048
C3016
0.1/16
C3059
100P(SL)
SW31
7
SKRGAAD010
SIR-505STA47
D3005
SW30
5
SKRGAAD010
CB302
5104
8
33
0
R3035
R3013
220
CB304
51048
+3.3FLD
R3056
10
K
R3019
1.8K
C
3
0
1
0
no_use
4.7K
R3004
R3033
10K
SW30
6
SKRGAAD01
0
F1
R3007
1K
100
K
R3006
SW316
SKRGAAD01
0
R3011
1K
C300
4
0.01(B
)
R3027
3.3K
0.1/16
C3029
R3076
2.
2
MSJ-064-05B-B-R
JK302
L
GND
R
R306
5
10
K
C3055
0.01(B
)
C3035
0.022
0.1/50(F)
C3001
NJM4565M
3
2
1
C3046
0.1/16
SW31
2
SKRGAAD010
D3021
no_use
V+
R307
0
10
0
D
3
0
1
3
S
L
R
3
4
3
B
C
4
T
3
F
C3039
100P(SL)
C3031
1000P(B)
R302
1
470
R3059
1K
D301
1
UDZV3.9B
C302
8
0.01(B
)
SW31
9
SKRGAAD01
0
+VP
10
0
R303
9
R3010
1K
Q3001
KTC3875S-Y,GR-
R
100
K
R3016
F2
C3043
100P(SL)
F1
R3080
1K
FG1
1000P(B)
C3038
D
3
0
0
3
U
D
Z
V
5
.
1
B
SW30
3
SKRGAAD010
NJM4565M
5
6
C3051
1000P
R3032
33
K
C3027
10/50
C3005
1000
P
R3074
4.7K
R3030
22
K
C3009
33P(CH)
C300
8
47/1
6
DGND
R3012
1K
+3.3M
Q3013
SC5964-TD-E
E
+3.3M
220K
R3036
C300
7
100P(SL
)
C3058
10/10
SW31
4
SKRGAAD010
R3055
100K
R3014
1K
R3034
3.3K
J300
1
FG1
C3014
10/16
C300
2
1000P(B
)
SW315
SKRGAAD01
0
R306
7
10
0
+5.6
FG2
-12V
D301
0
UDZV4.3B
Q3003
KTC3875S-Y,GR-
R
+12V
C3017
1000P
R3037
4.7K
FG2
DGND
R3005
1K
10K
R3048
Q3002
KTC3875S-Y,GR-
R
R300
8
10K
R306
4
10
K
+VP
C
3
0
4
5
4
.
7
/
6
.
3
R3022
1.5K
10
K
R3002
R3072
10
K
SW30
2
SKRGAAD010
Q3004
KTC3875S-Y,GR-
R
SW30
8
SKRGAAD010
-12V
W305
C3032
1000P(B)
E
C
3
0
1
1
no_use
SW31
8
SKRGAAD01
0
SW31
3
SKRGAAD010
SW32
0
SKRGAAD010
R3024
12K
+5.6
R3029
100K
R3028
4.7K
F2
SW30
7
SKRGAAD01
0
R3044
68K
Q3012
SC5964-TD-E
C3034
470/16
CB301
5215
1
SW309
SKRGAAD01
0
R3018
1.5K
SW322
SKRGAAD01
0
+3.3M
C3052
1000P
C3042
no_use
100K
R3009
100K
R3001
E
R3038
22K
R3026
2.2K
+3.3M
R306
6
10
0
SW311
SKRGAAD01
0
C3047
0.1/16
C302
6
0.01(B
)
no_use
R3061
47K
+VP
R3031
6.8K
SW31
0
SKRGAAD010
W301
SRA-21T-3/5298T
FG1
MSJ-2200C_AG
JK301
SW323
EC12E2460814
COM
B
A
R3020
4.7K
C3054
3300P/100
C3053
3300P/100
R306
0
100K
Q3010
DTC014EUBTL
Q3014
DTC014EUBTL
Q3005
DTC014EUBTL
DGND
DGND
DGND
D
3
0
0
8
1
S
S
3
5
5
V
M
D
3
0
0
7
no_use
D
3
0
0
9
1
S
S
3
5
5
V
M
D
3
0
0
6
no_use
D3020
1SS355VM
D3016
1SS355VM
D300
2
1SS355V
M
D3012
1SS355VM
D3015
1SS355VM
D3019
1SS355VM
D3014
1SS355VM
D
3
0
0
1
1
S
S
3
5
5
V
M
D3017
1SS355VM
R3043
10
0
R3045
10
0
R3025
8.2K
L301
100UH
RPM7238-H9R
U301
VOU
T
GN
D
VC
C
C3024
33P(CH)
0.1/16
C3021
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60
0.1/16
C3015
C3025
33P(CH)
XL301
4.000MHZ
Q3006
KTC3875S-Y,GR-
R
DGND
R3041
10
0
C3018
no_use
C3020
100/6.
3
+3.3FLD
0.1/50(F)
C3022
C3033
no_us
e
C302
3
no_use
100
K
R3040
C304
1
0.1/16
D
3
0
2
5
1
S
S
3
5
5
V
M
Q3017
C4488(S/T)
D
3
0
2
3
1
S
S
3
5
5
V
M
CB30
3
5204
4
D3018
UDZV39
B
R3047
10
0
33K
R3042
100K
R3049
Q3007
KTC3875S-Y,GR-
R
T301
ZJ37560
1
10
2
3
4
5
8
6
7
9
FLP_PO
N
FLP_PO
N
FLP_PO
N
R308
1
10
R3079
47
K
Q3016
DTC014EUBTL
Q3015
2N5551C-AT/P
C3019
22/50
020MT008GNK
V301
F1
1G
2G
3G
4G
5G
6G
7G
8G
9G
10
G
11
G
12
G
13
G
14
G
15
G
16
G
17
G
18
G
P3
6
P3
5
P3
4
P3
3
P3
2
P3
1
P3
0
P2
9
P2
8
P2
7
P2
6
P2
5
P2
4
P2
3
P2
2
P2
1
P2
0
P1
9
P1
8
P1
7
P1
6
P1
5
P1
4
P1
3
P1
2
P1
1
P1
0
P9
P8
P7
P6
P5
P4
P3
P2
P1
F2
19
G
20
G
P3
7
C301
3
22/1
6
C301
2
22/1
6
C
3
0
0
6
2
2
/
1
6
CB30
6
5204
4
C3044
1/10
0
FG3
W309
SCN-XH
RAL035P01
Q3011
1
2
3
4 5 6
W310
SAN-PH
R3082
68
R3083
68
C305
7
0.022/2
5
C306
1
0.022/2
5
UAS23-4K5G10
CB30
7
1234
V
DD
CE
Vref
3
4
2
1
Current Limit
V
OUT
GND
Pin No.
1
2
3
4
Symbol
V
OUT
GND
CE
V
DD
Description
Output Pin
Ground Pin
Chip Enable ("H" Active)
Input Pin
IC302
: RP130Q331D-TR-F
Voltage regulator
8-bit
Shift
Register
DCRAM
24w x 8b
Address
Selector
Write
Address
Counter
Read
Address
Counter
AD
Driver
CGRAM
240w x 35b
Segment
Driver
Grid
Driver
CGRAM
16w x 35b
ADRAM
24w x 2b
CGRAM
24w x 20b
Digit
Control
Duty
Control
Command
Decoder
RESET
D-GND
L-GND
DISP
V
DD
V
DA
CP
CS
OSC0
XOUT
SYNCO
COM20
COM1
AD2
AD1
SEG35
SEG1
SYNCI
M/S
DO
OSC1
IC301
: ML9286-03GAZ0ARL
VFD controller/driver
Control
Circuit
Timing
Generator 1
Timing
Generator 2
Oscillator
8
2, 6
3, 5
1, 7
4
V+
–INPUT
+INPUT
V–
OUTPUT
IC303: NJM4565M (TE1)
Dual operational amplifier
OPERATION (1)
OPERATION (7)
OPERATION (5)
OPERATION (6)
YPAO
MIC
Remote control
sensor
to chassis
Standby indicator
USB jack
MAIN ZONE
PHONES
SILENT CINEMA
PURE DIRECT
indicator
PURE
DIRECT
VOLUME
to chassis
RESISTOR
REMARKS
NO MARK
PARTS
NAME
CARBON
CARBON
METAL
METAL
METAL
FIRE
CEMENT
SEMI
FILM RESISTOR
FILM RESISTOR
OXIDE FILM RESISTOR
FILM RESISTOR
PLATE RESISTOR
PROOF CARBON FILM RESISTOR
MOLDED RESISTOR
VARIABLE RESISTOR
(P=5)
(P=10)
CHIP RESISTOR
REMARKS
CAPACITOR
PARTS NAME
NO
NO
MARK
MARK
ELECTROLYTIC
CAPACITOR
CERAMIC CAPACITOR
POLYESTER FILM CAPACITOR
POLYSTYRENE FILM CAPACITOR
MICA CAPACITOR
POLYPROPYLENE
FILM CAPACITOR
SEMICONDUCTIVE CERAMIC CAPACITOR
P
TANTALUM CAPACITOR
TUBULAR
S
CAPACITOR
CERAMIC
FILM
SULFIDE
POLYPHENYLENE
CAPACITOR
N O T I C E
U.S.A
G
CANADA
STANDARD
L
CHINA
AUSTRALIA
SINGAPORE
KOREA
GENERAL
U
C
T
A
K
R
JAPAN
(model)
B
BRITISH
J
SOUTH EUROPE
E
V
TAIWAN
F
RUSSIAN
P
LATIN AMERICA
S
BRAZIL
H
THAI
0V
0V
3.273V
0V
0V
0V
38.87V
AC 5.694Vrms
5.542V
3.314V
0V
0V
0V
0V
5.169V
5.169V
5.169V
0V
-12.054V
0V
0V
12.138V
3.295V
0V
0V
3.298V
0V
5.533V
0V
0V
0V
0V
0V
0V
5.541V
0V
0V
0V
0V
0V
0V
0V
0V
0V
3.295V
3.216V
3.291V
3.292V
3.284V
3.272V
3.217V
3.295V
3.286V
3.291V
3.161V
2.085V
5.541V
AC 5.691Vrms
3.314V
5.514V
3.294V
3.294V
38.86V
12.151V
0V
0V
-12.061V
3.215V
3.285V
0V
3.279V
0V
0V
OPERATION 1/3
Key detection for A/D port
Key input (A/D) pull-up resistance: 10 k-ohms
0 Ω
+ 1.0 kΩ
+ 1.0 kΩ
+ 1.5 kΩ
+ 1.5 kΩ
+ 2.2 kΩ
+ 3.3 kΩ
+ 4.7 kΩ
22 kΩ
33 kΩ
Detected voltage value
at 91 pin
0 – 0.15 V
0.15 – 0.42 V
0.43 – 0.70 V
0.71 – 0.97 V
0.98 – 1.24 V
1.25 – 1.53 V
1.54 – 1.84 V
1.85 – 2.22 V
2.23 – 2.62 V
2.63 – 3.04 V
A/D value
(3.3 V=255)
0 – 11
12 – 32
33 – 54
55 – 75
76 – 95
96 – 118
119 – 142
143 – 162
178 – 197
198 – 229
KEY1
RADIO
(SCENE4)
NET
(SCENE3)
TV
(SCENE2)
BD/DVD
(SCENE1)
ZONE
CONTROL
ZONE2
INPUT >
INPUT <
MAIN ZONE
z
(power)
TONE
CONTROL
(RX-V681 models)
0 Ω
+ 1.0 kΩ
+ 1.0 kΩ
+ 1.5 kΩ
+ 1.8 kΩ
+ 2.2 kΩ
+ 3.3 kΩ
+ 4.7 kΩ
+ 6.8 kΩ
+ 10 kΩ
+ 22 kΩ
+ 68 kΩ
Detected voltage value
at 92 pin
0 – 0.15 V
0.15 – 0.42 V
0.43 – 0.70 V
0.71 – 0.99 V
1.00 – 1.27 V
1.28 – 1.56 V
1.57 – 1.86 V
1.87 – 2.14 V
2.15 – 2.39 V
2.40 – 2.65 V
2.66 – 2.91 V
2.92 – 3.17 V
A/D value
(3.3 V=255)
0 – 11
12 – 32
33 – 54
55 – 77
78 – 98
99 – 120
121 – 143
144 – 165
166 – 185
186 – 205
206 – 225
226 – 245
KEY2
PURE
DIRECT
TUNING
>>
TUNING
<<
AM
FM
PRESET
>
PRESET
<
MEMORY
INFO
STRAIGHT
PROGRAM
>
PROGRAM
<
RX-V681
★
All voltages are measured with a 10M
Ω
/V DC electronic voltmeter.
★
Components having special characteristics are marked
⚠
and must be replaced
with parts having specifications equal to those originally installed.
★
Schematic diagram is subject to change without notice.
Details of colored lines
Red / full line:
Power supply (+)
Red /dashed line: Power supply (-)
Orange:
Signal detect
Yellow:
Clock
Green:
Protection detect
Brown:
Reset signal
Blue:
Panel key input
Summary of Contents for RX-A760
Page 3: ...3 RX V681 RX A760 RX V681 RX A760 FRONT PANELS RX V681 RX A760 ...
Page 5: ...5 RX V681 RX A760 RX V681 RX A760 RX V681 T model RX V681 A model RX V681 B G models ...
Page 6: ...6 RX V681 RX A760 RX V681 RX A760 RX V681 F model RX V681 L model RX V681 H model ...
Page 7: ...7 RX V681 RX A760 RX V681 RX A760 RX V681 V model RX A760 U C models RX A760 R model ...
Page 8: ...8 RX V681 RX A760 RX V681 RX A760 RX A760 T model RX A760 A model RX A760 G F models ...
Page 9: ...9 RX V681 RX A760 RX V681 RX A760 RX A760 L model ...
Page 10: ...10 RX V681 RX A760 RX V681 RX A760 REMOTE CONTROL PANEL RAV537 Remote control sheet T model ...
Page 157: ...158 RX V681 RX A760 MEMO MEMO ...
Page 170: ...AV RECEIVER RX V681 RX A760 ...