Yamaha DSPR-495 Schematic
ABCDEFGH I JKLMN
DSP-R495/RX-V495RX-V495RDS/HTR-5140/HTR-5140RDS
■ SCHEMATIC DIAGRAM (DSP)
TO INPUT(3) CB354
P60
M-8
1
2
DIGITAL
IN
4.9
0.2
3
00
0
4
Point 5
Pin 13 of IC3
V : 2V/div H : 50nsec/div
AC range 1 : 1probe
0
0
0
0
4.9
4.9
4.8
0
4.9
0V
5
2V SAMPLE 50ns
Point 6
Pin 13 of IC4
V : 2V/div H : 50nsec/div
AC range 1 : 1probe
6
0V
2V SAMPLE 50ns
7
11
12
8
4.9
9
10
0
0
~
0
4.9
0
4.9
0
4. 9
0
4.9
0
0
4.9
0
4.9
0
8
3
2
0
14
13
0
7
0
0
DIR
~
1
0
4
0
5
0
6
2.2
4.9
2.4
2.4
4.9
5
2.3
4.9
6
0
2.2
2.42.4
5
4
CONTROL
LC87F5164A
(LC875164A-5K20)
2.4
2.3
0.2
0
0
7
1.0
1.0
0.1
0
0
0.1
0.1
0.1
4.7
2.3
4.9
0
0.2
2.4
4.9
4.9
4.9
2.4
2.4
2.4
0
0
3.1
L.P.F
3. 1
2. 4
2. 4
~
0
2. 3
0. 9
4. 6
0. 1
0
3.1
0
0
0
0
0
0
0
0
4.8
0
4.9
0
0
0
0
0
0
0
0
0
~
~
4.7
2.4
2
3
2.4
1
DOLBY DIGITAL
PRO-LOGIC DECODER
+
DSP
0
0
2.4
3.1
4.7
2.3
2.4
1.503.1
4.7
4.6
2.4
2.4
2.3
2.4
0.9
2.4
~
~
2.4
2.4
~~~
~
0.1
~~~
0
~
~
~
0
0.1
0.100
0.1
0
0.1
0.1
0.1
~
~
~
4.9
~
RAMDSP
~
0.8
0.8
4.8
4.9
0.2
0
4.9
4.9
4.9
6
4.9
4.9
0
2.4
2.4
0
~
~
2.4
2.4
2.4
3.1
0
4.7
4.7
4.8
4.8
2.4
2.4
4.8
2.4
4.8
2.4
2.4
2.4
0
0
2.4
2.4
0
0
2.4
2.4
11.7
8
6
4
-11.4
2.4
5
7
1
7
2.4
2.4
3
2.4
1
2
2.4
2.4
-11.4
4
11.7
8
2.4
6
5
3
2.4
2
2.4
MAIN L
(DSP)
2.4
2. 4
2. 4
4.9
4.9
0
0
2.304.8
0
0
0
ADC/
DAC
0
~
~
~
0
0
4 .8
2.4
0
2.4
2.4
2.4
2.4
2.4
2.4
2.4
2.4
2.4
2.4
MUTING
0
0
0
0
0
0
0
0
4.9
4. 7
DAC
00
0
0
4. 8
0
2. 3
4. 9
2. 4
~
2. 4
0
0
4. 8
0.5
0
0.2
0. 5
4.8
0
0
4.8
00.5
0
4 .9
0
4 .9
2 .4
2.4
2.4
0
4 .8
0
0
0
0.2
0
4.7
0
0.2
MUTE
DRIVE
4.6
0.6
0.6
- 10.8
- 10.8
- 10.8
- 10.8
- 10.8
0
0
0
0
0
0
0
0
0
0
0
0
0
- 10.8
-10.8
0
-10.8
0
DSP AMP
0
0
0
0
0
0
0
0
11.7
0
0
0
-11.4
0
CENTER
11.7
-11.4
0
FRONT L
0
D-1
TO INPUT(1) CB102
P60
0
MAIN
L
0
4.9 3.3
0
4.8
4.904.8
8
9
4.9
0
4.9
4.902.1
TO INPUT(1) CB106
H-8
P60
2.5
4.9
0
0
IC1 : NJM2904M
IC8~13 : uPC4570G2
IC2 : HD74HC02FP
Quad 2 Input NOR
- 10.8
- 10.8
IC7 : AK4320
1 bit D/A Converter
0
0
0
11.7
0
0
0
REAR L
0
0
-11.4
0
Dual OP AMP
Vcc4A4B
4Y
14 13 12 11 10 9 8
3Y
3B
3A
10
63
PIN CONNECTION DIAGRAM OF DIODES, TRANSISTORS AND IC’s.
1SS355
Cathode
Anode
2SC3326(A,B)
DTA144EKA
DTC144EKA
UPC29M33T-E1
NJM2904M
uPC4570G2
HD74HC02FP
AK4320
24
A OUT
A –IN
A +IN
V–
M5M51288BKJ-20LTEL
13
12
AK4526
LC87F5164A
YSS908-F
• IC3~6, 14→See page 29~35, IC DATA
V+
B OUT
B –IN
B +IN
1234567
1B
1A
1Y
2Y
2A
2B
GND
Conditions (RX-V495RDS)
• INPUT → CD
• VOLUME → minimum(–∞)
• IMPEDANCE
SELECTOR → Upper
• PRO LOGIC → On
★
All voltages are measured with a 10MΩ/V DC electric volt meter.
★
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.
BACDEFG
DSP-R495/RX-V495/RX-V495RDS/HTR-5140/HTR-5140RDS
■ SCHEMATIC DIAGRAM (INPUT)
1
H
VIDEO SELECTOR & AMP
3.8
2
VCR-IN
11.8
6.4
5.7
6.4
7.0
VCR-OUT
VIDEO
SIGNAL
VIDEO
TV/DBS
3
DVD/LD
3.804.706.4
3.8
3.8
11.8
TO INPUT (1)
CB101
P60 D-8
7.4
0
0
TO OPE (2)
CB807
P62 J-2
MONITOR
OUT
4
PIN CONNECTION DIAGRAM OF
TRANSISTORS AND IC’s.
2SC1740S(R,S)
2SC1815(Y)
LA7956
IC303 : LA7956
Video Switch
5
Conditions (RX-V495RDS)
• INPUT → CD
B
C
E
E
C
B
★
All voltages are measured with a 10MΩ/V DC electric volt meter.
★
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.
58
6
59
• VOLUME → minimum(–∞)
• IMPEDANCE
SELECTOR → Upper
• PRO LOGIC → On
AB C D E F G H I J K L M N
DSP-R495/RX-V495/RX-V495RDS/HTR-5140/HTR-5140RDS
■ SCHEMATIC DIAGRAM (INPUT)
1
TO OPE(4) CB802
P62
REAR L
MAIN L
TO DSP CB6
P63
N-4
FRONT L
MAIN L
(DSP)
MAIN L
(DSP)
H-4
VOLUME AMP
MAIN L
11.8
8
0
3
1
0
0
2
PHONO(MM)
2
3
AUDIO
SIGNAL
4
IN
3
(PLAY)
OUT
4
(REC)
5
EQ AMP
11.4
0
3
8
0
2
6
0
0
4
5
-11.2
1
0
7
0
MAIN L
INPUT SELECTOR
0
0
00 00
00
00
00 00
00 00
0000
TUNER LEVEL
CONTROL
CENTER
0
0
0
0
11.9
6
0
8
7
0
0
CENTER
24.0
8
0
3
2
0
0.1
6
0.1
0.1
5
4
-23.9
MAIN
CONTROL
MAIN L
11.9
0
4
0
0
0
0
0
-11.6
2
3
0
7
8
0
5
6
CENTER/SUB WOOFER/FRONT/REAR AMP
1
0
0
0.1
0.1
7
0.1
0.2
FRONT L
REAR L
MAIN L(DSP)
0
0
0
0
0
0
24.0
0
6
8
0
0
0
0
0
0
0
0
0
0
0
0
0
00
0
0
0
0
0
0
0
DSP AMP
0
0
0
7
0
5
5
0
7
6
0
0
8
24.0
-23.7
4
0
3
0
2
0.1
0
2
0
3
4
-23.7
6CH
SELECTOR
CENTER
0
000
00 0
0
1
1
0
FRONT
L
MAIN L
SPEAKER LEVEL
CONTROL
00000
4.7
00000
4 .7
00000
4.7
0
000
4 .7
11.9
-11. 6
11.9
-11. 6
11 .9
MAIN L
CENTER
11.9
0
6
8
7
0
0
3
0
2
0
4
0
5
-11.6
11.9
0
6
8
7
0
0
0
3
2
4
0
0
5
-11.6
REAR L
A-5
TO MAIN(6) CB501
P61
I-8
TO MAIN(7) CB721
P61
CENTER
VOLUME
0
6
7
0
0
4
5
-11.5
11.8
3
8
1
0
0
0
2
0
6
7
0
0
4
5
-11.5
11.8
3
8
1
0
0
0
2
0
6
7
0
0
4
5
-11.5
MOTOR DRIVE
0
0.5
1.7
0.4
0.7
0.5
1.7
10.1
0.7
10.1
REAR L
3
2
0
4
0
5
0
-11.6
6
EXTERNAL
IN
11 .9
11.9
11.9
0
0
OUT
7
OUTPUT
SUB
WOOFER
-11.5
0
0
-11.6
0
4.8
4.8
11 .9
-11. 6
11 .9
0
0
0
4.8
4.8
MUTING
TO OPE(1) CB800
A-5
TO INPUT(2) CB301
P58
E-2
8
P62
11 .9
0
0
0
4.8
4.8
-11. 6
COAXIAL
4.8
0
~
4.8
0
4.3
TO DSP CB3
D-9
P63
TO TUNER CB4 P64
TO TUNER CB4 P65
:J,U,C,R,T,A,L models
H-5
:B,G models
H-4
DIGITAL
SIGNAL
OPTICAL
OPTICAL
DECODER
INPUT
SURROUND
2.5
0
DIGITAL IN
DIGITAL SELECTOR
4.8
3.1
0.4
4. 8
0
0.4
0.4
4 .3
0
0
~
4.8
0.4
0
000
4.9
0
0
0
4.8
4.8
0
0
0
0
0
4.8
C-1
TO DSP CB1
P63
10
IC101 : LC78211
Analog Function Switch
IC102 : LC78213
Analog Function Switch
9
PIN CONNECTION DIAGRAM OF DIODES, TRANSISTORS AND IC’s.
1SS133
1SS176
HSS104
HZS11B2TD
Anode
Cathode
2SC2878(A, B)
E
C
B
NJM2068MDHZS5C2TD
M5220L
8
UPC4570HA
9
LB1641
IC103 : LC78212
Analog Function Switch
L1
1
L2
2
L3
3
LCOM1
4
L4
5
L5
6
L6
7
LCOM2
8
L7
9
L8
10
11
LCOM3
V
DD
19
Vss
16
EE
V
12
RES
18
S
17
TC74HCU04AP
UPC4570C
10
LEVEL SHIFTER
LATCH
SHIFT RESISTER
HD74HC153P
TC9299P
CONTROL,
30
29
28
27
26
25
24
23
22
21
20
14
15
13
R1
R2
R3
RCOM1
R4
R5
R6
RCOM2
R7
R8
RCOM3
D1
CL
CE
LC78211
LC78212
LC78213
L-ch
OUT
NC
A-GND
CS1
GND
CK
IC110,111 : TC9299P
Electric Controlled Volume
Vss V
1 16
2
L-ch
3
IN
DATA
LATCH
4
5
6
SHIFT REGISTER (13bit)
LEVEL
7
SHIFTER
8
STOROBE GENERATOR
IC104 : NJM2068LD
IC107~109 : M5220L
Dual OP-Amp
+
–
1
2
3
–IN1
OUT1
+IN1
4
5
–Vcc
R-ch
DATA
LATCH
+
–
6
–IN2
+IN2
DD
LEVEL
SHIFTER
7
8
OUT2
+Vcc
IC351: TC74HCU04AP
Hex Inverters
15
14
13
12
11
10
9
OUT
IN
NC
A-GND
CS2
STB
DATA
R-ch
1A 1
1Y 2
2A 3
2Y 4
3A 5
3Y 6
Vss 7
IC105, 106, 112, 113 : µPC4570HA
Dual OP-Amp
IC352 : HD74HC153P
Dual 4 to Data Selectors
14 V
DD
13 6A
12 6Y
11 5A
10 5Y
9 4A
8 4Y
IC401~403 : µPC4570C
Dual OP-Amp
A OUT
A –IN
A +IN
V–
V+
B OUT
B –IN
B +IN
IC404 : LB1641
Motor Driver
:NOT USED
Conditions (RX-V495RDS)
• INPUT → CD
• VOLUME → minimum(–∞)
• IMPEDANCE
SELECTOR → Upper
• PRO LOGIC → On
★
All voltages are measured with a 10MΩ/V DC electric volt meter.
★
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.
60
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