File name Yamaha Receiver RXV-420 Schematic.pdfA
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SCHEMATIC DIAGRAM (INPUT)
1
PIN CONNECTION DIAGRAM OF TRANSISTORS, DIODES AND ICS.
2SC1815 2SC2878 2SC1740S DTA144ES 2SA1708 2SC4488 1SS133 1SS176 HZS11B2TD MTZJ5.6B S1VB20
Anode
24.1 24.7 31.6
1P82
RX-V420/RX-V420RDS/HTR-5440/HTR-5440RDS/DSP-AX420
NJM7805FA NJM7812FA
NJM79M12FA
24.7
0 -24.7 32.2 0 -32.0
1P82
Cathode E E CB CB E C B +
~
~
3: IN 2: COM 1: OUT
-24.2 -23.6
0 -32.9 AC 48.9
3: OUT 2: IN 1: COM
M5220L
LA7956
µPC4570HA
AC 32.2 20.8 E-56/J-52 G6 11.9 0 20.7 12.0 0 20.7 5.1 0 -21.4 10.6 0 0
LC72722
LC78212
Point 1 Pin 12 of IC445
9 8 15 9 24 1 1 1 1 12 30 1
LC78211 LC78213
15
2
30 1
5.1 11.2 4.9 -21.3
C411
0
AC 10.0
0 -11.9
3
CENTER
5.0 0 0 0 2.1 0 2.0 0 -11.7 -11.9 0 0 0 -11.9 0 0 -11.9 0 0 0 -11.9 4.8
0 0
0 0
0 -11.9 0 0 -11.9
0 0 -11.9
0 0
4
0 0 0
0 0
0
0
0 0
390 390
INPUT SELECTOR
REAR L
0 0 0 0
0 -11.9 -11.9 0 0 23.7 0 0 0 0 0 0
0 0 -11.9 -11.9 0 0
0 -11.9
0
0 -11.9 -11.9
0
0 -11.9 0 0 0 0 0 -11.9
0
0
5.0 4.8
5.0 4.8
2.2/50 C515
5.0 4.8
0 0
-11.9
-11.9
R583 470-11.7
E-56/J-52 G5
MAIN L
23.7
x: NOT USED O: USED / APPLICABLE
5
12.0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0
0
0
-24.2 0 0 0 5.0 4.8 E-56/J-52 C6 11.9
C369
0 0
0
0
0
0
0
0
0
0 -11.9 0.1 0 0.1 0 3.8 3.8 11.9 3.8 0 3.8 4.8 0 6.1 -24.2 0 0.1
0 0 0 0
0
0 0
0
0
0
0 0 -12.0 0
0 0 0
6
6.1 5.4
6.1
6.1 6.7 7.2
10/25
0 0 12.0 0 0 12.0 0 0 12.0 0 0
7
-12.0
0 0 0 -12.0
0 0 0 -12.0
0 0 0 4.7 4.7 5.7 11.8 11.8 0 0 0 0 0 0 1.7 4.7
1
-11.9 0 0 -11.9 0 -11.9 0 0 -11.9 0
-11.7 5.7
3.5 2.9
2.1
2.1 4.3
0 2.1
1.8
0.22/50
0
2.0
2200P/16 0.01/16 0.01/16
8
# All voltage are measured with a 10M /V DC electric 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.
E-56/J-52 G3 E-57J-53 F1 E-56/J-52 A4
9
W401
E-56/J-52 I2
E-56/J-52 C6
0.1
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E-55/J-51
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RX-V420/RX-V420RDS/HTR-5440/HTR-5440RDS/DSP-AX420
SCHEMATIC DIAGRAM (OPERATION)
MAIN L
-21.7 -21.7 -29.1 ~ ~ ~ ~ -29.2 ~ ~ -29.2 ~ -29.2 ~ -29.2 ~ ~ -29.2 ~ ~ -29.2 ~ ~ ~ ~ ~ ~ -29.2 ~ ~ ~ ~ -29.2 -29.2 -29.2 -29.2 -29.2 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ -21.7 -21.7
1
FL DISPLAY
4.8 ~ ~ ~ 4.8 ~ ~ 4.8 ~ -29.2 ~ ~ ~ ~ -29.2 -29.2 -29.2 -29.2 -29.2 ~ ~ ~ ~ ~ ~ -29.2 ~ ~ -29.2 ~ ~ -29.2 ~ -29.2 ~ -29.2 ~ 4.8 ~ ~ 4.8 ~ ~ 4.8 ~
11.8 0 0 0
FL DRIVER
-29.5 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ -29.5
0 0
0 -11.7
2
CENTER
E-55/J-51 F3 0 0
11.8 0
3.3/50
~ ~ -29.2 ~ ~ ~ ~ -29.1 0 2.5 2.5 4.8 5.2 0 0 0
0 0 -11.7
0 3.3/50
11.8
E-55/J-51 B8
820
3
0 0
0
3.3/50 18K
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4.8 2.7 4.8
2
E-58/J-54 G4 0 0.1 4.8 5.2 0.6 0.6
820
18K
0 0 -11.7
0 0 4.8 4.8 4.8 0 0 0 0 0 0 0 4.6 0 0.1 0 4.8 5.2
0 3.3/50
4
4.8 4.8 0 4.8 0 11.9 0 4.8 4.8 4.8 4.8
PRV
0 2.7 0.5 0
E-55/J-51 F8
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