A
1
2
3
4
5
6
7
8
9
10
K
J
I
H
G
F
E
D
C
B
L
N
M
121
RX-V681/RX-A760
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
G12
P21
RM-
P12
P29
P30
G8
P6
RM-
VOL_RB
REM_IN
P14
P33
G10
G4
P13
FLD_SCK
ISEL_RB
MIC_N_DE
T
P15
P5
P26
RM+
G11
P23
G9
PSW_DET
P28
FLD_MOSI
KEY1
ISEL_RA
P8
RM+
P4
P16
G5
VOL_RA
PD_LED
G13
STBY_LED
P17
P32
P24
G7
KEY2
G6
G1
G3
P10
P11
ISEL_RB
ISEL_RA
P25
P27
REM_IN
G2
P9
P19
FLD_N_RS
T
P22
FLD_N_CS
G14
KEY2
DGND
P7
P3
P20
MIC
MIC_N_DET
MIC
PSW_DE
T
VOL_R
B
VOL_R
A
STBY_LE
D
PSW_DET
P35
P34
P1
PD_LE
D
P3
P23
P21
P12
G2
G13
P25
P17
G14
P11
G4
P6
P27
P15
G7
P16
P5
P34
P13
P7
G5
G3
P26
G12
P20
G16
G16
G8
P19
P33
P10
P22
P32
G10
P9
G9
G1
P30
P24
P4
G15
G15
P29
P8
G6
P14
G11
P28
P35
FLD_N_C
S
FLD_MOS
I
FLD_N_RST
FLD_SC
K
G15
I
G15
I
G16
I
G16
I
P31
P31
P31
I
P31
I
KEY
1
P1
P36
P37
P2
P2
P36
P2I
P2I
G17
G18
P18
I
P18
I
G18
G17
P18
P18
G20
G20
G19
G19
G20
I
G20
I
P37
C3022
1000P(B)
R3023
22K
SW303
SKRGAAD01
0
CB302
PHL
SW341
no_use
R3018
100K
SW302
no_us
e
R3062
1.5K
R3078
10K
F2
-12V
C3039
0.1/16
R3030
6.8K
SW340
SKRGAAD010
R3019
1K
SW328
SKRGAAD01
0
C3040
100P(SL)
SW319
SKRGAAD01
0
SW335
no_us
e
R3052
1K
+3.3M
+3.3M
C3045
0.1/16
C3015
33P(CH)
C3052
220P(SL)
FG
CB303
51048
SW318
no_us
e
R3068
33K
R300
7
10K
SW325
SKRGAAD01
0
NJM4565M
5
6
7
D
3
0
0
6
U
D
Z
V
5
.
1
B
C3018
10/16
SW334
no_us
e
R3085
47K
C3054
470/1
6
R3016
1.5K
Q3012
SC5964-TD-E
SW332
SKRGAAD01
0
0.1/16
C3049
R3073
47K
R3084
10K
C3003
1000P(B)
FG
CB308
51048
RP130Q331D-TR-F
IC302
VDD
GND
VOUT
CE/CE
C300
9
0.01(B
)
C3036
0.1/16
R306
1
10
0
SW326
no_us
e
C3016
no_use
SW330
no_us
e
C3021
1000P(B)
F1
SW321
SKRGAAD01
0
J3014
no_use
SW317
SKRGAAD01
0
SW331
no_us
e
SW336
SKRGAAD01
0
C3012
100P(SL)
SW324
SKRGAAD01
0
SW305
SKRGAAD01
0
D300
5
no_us
e
CB301
51048
FG
CB306
51048
SW316
SKRGAAD01
0
R3008
1K
R3009
1K
R3049
1K
R3072
47K
MSJ-064-05B-B-R
JK302
L
GND
R
C
3
0
4
3
4
.
7
/
6
.
3
R3054
68K
R3086
47K
J3013
+5.6
C3002
1000P(B)
100
R3080
+12V
+5.6
4.7K
R3003
R3015
220
+3.3M
SW314
no_us
e
SW320
no_us
e
R3026
3.3K
C3031
1000P
+3.3FLD
D
3
0
1
2
S
L
R
3
4
3
B
C
4
T
3
F
C3033
0.1/16
R3079
1K
SW310
no_us
e
C3046
100/6.3
C3042
100P(SL)
R3082
10K
C3061
0.1/16
C301
3
47/6.3
C3008
22/16
R3022
470
D3016
8224-10SDRD/S53
W304A
10K
R3067
10K
R3031
R3012
1K
SW311
no_us
e
ST301
E
J3015
no_use
C3030
1000P
C3034
0.1/16
SW315
no_us
e
JK301
JY-3554-01-130
1000P(B)
C3051
+3.3M
R3032
10K
R307
4
no_us
e
R307
5
10K
1000P(B
)
C3053
C3041
no_use
SW304
no_us
e
V+
C3062
100P(SL)
F1
SW309
SKRGAAD01
0
SW322
no_us
e
SIR-505STA47
D3011
SW307
SKRGAAD01
0
C305
8
0.02
2
@value
J3001
C3006
0.01(B)
R3006
1K
C3017
22/16
+3.3FLD
J3016
SW333
SKRGAAD01
0
C3060
10/10
SW329
SKRGAAD01
0
+5.6
D300
9
UDZV4.3
B
R3029
4.7K
R307
6
1.2
K
R3021
1.8K
C3014
22/16
R3025
12K
R305
1
10K
SW327
no_us
e
R3004
1K
+3.3M
C301
0
1000P(B
)
+5.6
R3028
100K
SW323
no_us
e
R3048
22K
1000P(B
)
C3057
SW312
SKRGAAD01
0
R3070
100
W304B
D3010
UDZV3.9
B
C3063
1000P(B)
FG
R3010
2.2
SW308
no_us
e
SW306
no_us
e
C3044
0.1/16
F2
R305
6
10
0
SW301
SKRGAAD01
0
C3011
no_us
e
R3024
2.2K
R305
5
10
0
C3038
1/25
R3077
10K
Q3013
SC5964-TD-E
W301
FG
R3037
100K
SW313
SKRGAAD01
0
FG
R3069
1.5K
+3.3M
SW337
SKRGAAD01
0
R3027
2.2K
NJM4565M
3
2
1
C305
0
0.1/1
6
C3035
0.1/16
1000P(B)
C3055
10K
R3001
R305
3
10
0
E
+12V
-12V
C3047
1000P
C3048
1000P
+3.3M
J3009
J3011
J3012
J3008
J3010
FG
R3020
4.7K
G304
no_use
G302
no_use
G301
SW339
EC12E2460814
COM
B
A
SW338
no_use
COM
B
A
R304
7
100
K
W302B
no_use
W302A
no_use
J3017
J3018
J3019
D300
2
1SS355V
M
D300
4
1SS355V
M
D3013
no_us
e
D3022
1SS355VM
D3020
1SS355VM
D3003
1SS355VM
D3018
no_use
D
3
0
1
4
no_us
e
D3008
no_use
D3021
1SS355VM
D3007
no_use
D
3
0
0
1
1
S
S
3
5
5
V
M
D3017
no_use
D3019
1SS355VM
D3015
1SS355V
M
Q3014
DTC014EUBTL
Q3009
DTC014EUBTL
Q3010
DTC014EUBTL
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
J3022
J3020
J3021
R3043
8.2K
L301
100UH
C3005
10/50
RPM7238-H9R
U301
VOUT
GND
VCC
Q3008
C4488(S/T)
D3026
1SS355V
M
D3025
UDZV39B
C3068
2.2/5
0
DGND
R3042
1.0
D3027
1SS355V
M
R3044
4.7K
+VP
0.1/1
6
C3019
100
K
R3002
R3035
100
0.1/1
6
C302
0
Q3003
KTC3875S-Y,GR-R
Q3001
KTC3875S-Y,GR-R
C306
6
100/6.
3
0.1/50(F)
C3023
C3027
33P(CH)
R303
4
100
100
K
R3011
Q3004
KTC3875S-Y,GR-R
C3029
0.1/1
6
C3024
no_us
e
Q3005
KTC3875S-Y,GR-R
C3028
no_us
e
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
220
K
R3040
100
K
R3033
100
K
R3017
0.1/50(F)
C3001
C3025
no_us
e
100
K
R3005
330
R3039
C3026
33P(CH)
Q3002
KTC3875S-Y,GR-R
XL301
4.000MHZ
R303
8
100
C3032
0.1/1
6
R3057
10
0
CB30
4
5204
Q3015
KTC3875S-Y,GR-R
100
K
R3058
33K
R3041
T301
ZJ37560
1
10
2
3
4
5
8
6
7
9
FLP_PON
FLP_PON
FLP_PO
N
R3046
10
R3045
47K
Q3007
DTC014EUBTL
Q3006
2N5551C-AT/P
C3064
22/50
020MT008GNK
V301
F1
1G
2G
3G
4G
5G
6G
7G
8G
9G
10G
11G
12G
13G
14G
15G
16G
17G
18G
P36
P35
P34
P33
P32
P31
P30
P29
P28
P27
P26
P25
P24
P23
P22
P21
P20
P19
P18
P17
P16
P15
P14
P13
P12
P11
P10
P9
P8
P7
P6
P5
P4
P3
P2
P1
F2
19G
20G
P37
C306
7
0.4
7
XREB12505PVB25F
SW342
COM
A
B
CB30
5
5204
4
C3037
1/100
C307
5
0.022/2
5
C307
4
0.022/2
5
C300
7
3300P/100
C300
4
3300P/100
G303
W308
SCN-XH
PN301
no_use
RAL035P01
Q3011
1
2
3
4 5 6
W306
W309
SAN-PH
R301
3
68
R301
4
68
UAS23-4K5G1
0
CB310
1234
ISEL_RA
ISEL_R
A
MIC_N_DE
T
IR
VOL_RA
MAIN ZONE
A7
STRAIGHT
OPE(5)
to Digital
A7
DGND
VOL_R
A
ZONE2 ON/OFF
GND
A7
V7
PURE DIRECT
FLD_N_C
S
U S B
-Data
A7
OPE(7)
+3.3
M
V7
E
MASW
BODY EARTH
V7
DGND
BD DVD
V7
V7
V7
MIC
FLD_MOS
I
INPUT
+3.3M
+12V
OPE(6)
DGND
RM
+
PSW_DE
T
PRESET
PRV
2
ZONE2 CONTROL
A7
MASW
7
A
7
A
HP_N_DET
A7
PD_LE
D
V7
VBus
V7
A7
+5.
6
-12V
DGN
D
VOL_RB
A7
KEY
2
CONTROL
KEY
1
MIC_N_DET
VBus
HPR
TUNING
to Digital
FLD_SC
K
SCENE1
TONE
From
A7
TV
Selector
ISEL_R
B
FM
PURE DIRECT
V7
OPE(1)
DGN
D
SCENE3
ISEL_RB
V7
V7
SCENE2
AM
REM_I
N
V7
BODY EARTH
V7
A7
DGND
V7
V7
FG
+3.3M
FG
GND
V7
RADIO
V7
A7
A7
DGN
D
NET
A7
V7
V7
DC-DC/AC Converter for VFD
of SW339
VIDEO(1)
PROGRAM
A7
FLD_PO
N
to OPE(2)
A7
GND
J3015,3016
SW338,339
HPE
V7
+5.
6
HPL
VBus
VOL_R
B
+Data
to Digital
FLD_N_RS
T
SCENE4
A7
26Pi
n
STBY_LE
D
A7
DGND
Head Phone
OPE(12)
RM
-
INFO
+3.3FLD
OPE(10)
A7
MEMORY
+3.3M
E
MIC
+12V
-12V
MIC_N_DET
FG
301-340
3001-3400
NC
-12
V
E
MI
C
+12
V
STBY_LED
STBY_LED
KEY1
KEY2-2
KEY1-3
KEY1-2
KEY2-2
KEY1
KEY1-3
KEY1-2
DGND
DGND
+3.3M
ISEL_RB
DGND
ISEL_RA
OPE(11)
LG
OSC0
/CS
VDD
DA
VDISP
/RESET
VDISP
DG
VDD
ISYNC
VDISP
DG
LG
OSC1
/CP
M/S
DMY-GND
FLP_PO
N
DMY-VDD
DO
SYNCO
XOUT
MF00607
MF00512
+ V P
R3050
33
+ V P _ D E T
+VP_DET
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 (5)
OPERATION (7)
OPERATION (10)
OPERATION (11)
OPERATION (12)
OPERATION (6)
YPAO
MIC
Remote control
sensor
Standby indicator
PHONES
SILENT CINEMA
PURE DIRECT
indicator
VOLUME
MAIN ZONE
USB jack
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
12.151V
0V
0V
-12.061V
3.215V
0V
3.273V
0V
0V
0V
38.87V
AC 5.694Vrms
5.514V
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
0V
-12.054V
0V
0V
12.138V
5.542V
3.314V
0V
0V
0V
0V
0V
0V
5.169V
5.169V
5.169V
3.314V
38.86V
AC 5.691Vrms
OPERATION 1/3
RX-A760
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 173 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
181 – 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 171 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
<
★
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-V681
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 ...