Yamaha RXV-420 Schematic
A
www.rtv-horvat-dj.hr
www.rtv-horvat-dj.hr
BCDEF GH I JKL
SCHEMATIC DIAGRAM (INPUT)
1
Point 1 Pin 12 of IC445
2
3
CENTER
0
2.1
4
5
6
MAIN L
INPUT SELECTOR
0
0
00
00
0
0
0
0
0
0
0
0
00
00
00
00
REAR L
12.0
0
0
00
0
0
0
0
00
0
0
-12.0
RX-V420/RX-V420RDS/HTR-5440/HTR-5440RDS/DSP-AX420
PIN CONNECTION DIAGRAM OF TRANSISTORS, DIODES AND ICS.
NJM7805FA
2SC1815
2SC1740S
2SC2878
DTA144ES
E
E
M5220L
1
0
0
0
2.0
0
0
0
-11.7
00
0
0
23.7
0
0
0
0
0
0
0
23.7
0
00
00
0
0
0
0
0
0
0
0
0
0
000
0
0
0
0
0
0
0
0
0
0
-24.2
0
0
0
0.1
0.1
0.1
-24.2
C
C
B
B
LA7956
9
8
1
2SA1708
2SC4488
E
µPC4570HA
1
E-56/J-52
1SS133
1SS176
HZS11B2TD
MTZJ5.6B
B
C
LC72722
9
24
I2
Cathode
S1VB20
Anode
–
~
~
+
LC78212
12
30
1
1
0
0
-11.9
-11.9
-11.9
-11.9
0
000
-11.9
NJM7812FA
3: IN
2: COM
15
0
-11.9
0
-11.9
5.0
LC78211
LC78213
E-56/J-52
5.0
30
C6
-11.9
000
4.8
NJM79M12FA
3: OUT
1: COM
1: OUT
2: IN
15
G6
1
-11.9
-11.9
390
0
-11.9
5.0
4.8
4.8
-11.9
E-56/J-52
5.0
4.8
-11.9
0
0
0
-11.9
-11.9
0
0
0
0
0
0
0
0
0
-11.9
-11.9
390
0
0
-11.9
-11.9
0
000
5.0
4.8
C515
2.2/50
R583
470
-11.7
24.1
1P82
31.6
24.7
24.7
0
-24.7
-24.2
-32.0
-23.6
1P82
11.9 20.7012.0 20.7
0
-11.9 -21.3
0
E-56/J-52
32.2
00
20.8
10.6
5.1
0
G5
x: NOT USED
O: USED / APPLICABLE
3.8
3.8
11.9
00
11.2 0
C411
0.1
W401
0
0
6.1
4.8
3.8
3.8
AC
48.9
-32.9
AC
32.2
-21.4
5.1
AC
10.0
4.9
C6
E-56/J-52
11.9
C369
6.1
6.1
10/25
6.1
6.7
5.4
7.2
0
12.0
0
0
7
0
0.22/50
0 -11.90000
-11.9 -11.7
-11.9 -11.9
000
-12.0
-12.0
8
E-56/J-52
G3
E-57J-53
F1
12.0
12.0
0
0
0
0
000
000
-12.0
11.8
4.7
11.8
5.7
3.5
5.7
0
E-56/J-52
A4
4.74.7
0
000
0
2.1
2.9
4.3
2.1
2.1
2.0
2200P/16
0.01/16
0.01/16
1
1.7
00
1.8
★ 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.
9
0
E-55/J-51
A
www.rtv-horvat-dj.hr
www.rtv-horvat-dj.hr
RX-V420/RX-V420RDS/HTR-5440/HTR-5440RDS/DSP-AX420
SCHEMATIC DIAGRAM (OPERATION)
BCDEF GH I JKL
1
2
3
-21.7
-21.7
~~~
~
~~~~~~~~~~~~~~~~~
~
~~~
-29.2
-29.2
-29.2
FL DISPLAY
~
-29.2
~
~
~
~
~
-29.2
~
~
-29.2
~
~
-29.2
~
-29.2
~
-29.2
~
~
-29.2
-29.1
4.8~4.8~4.8
-29.2
-29.2
~~~
~
-29.2
-29.2
-29.2
-29.2
-29.2
FL DRIVER
2.5
2.5
0
~~~
~
-29.2
-29.1
MAIN L
~
-29.2
-29.2
-29.2
-29.2
~
-29.5
~
~
~
~
~
~
~
~
~
~
-29.5
000
4.8
5.2
-29.2
-29.2
~
~~
~~~~~~~~~
4.8~4.8~4.8
~
-21.7
-21.7
CENTER
F3
E-55/J-51
B8
E-55/J-51
11.8
0
0
0
0
0
0
-11.7
11.8
0
0
3.3/50
0
0
0
3.3/50
0
-11.7
11.8
0
0
3.3/50
0
820820
18K
18K
0
0
3.3/50
0
-11.7
0
0.80
0.8
0.6
0.6
1.8
0.4
11.1
0.8
11.1
0
4.8
0.047F/5.5
2
G4
E-58/J-54
12.7
5.6
0
0
5.6
5.2
2.70000.5
0.6
0
12.7
A
12.7
12.0
7.3
6.6
0
I4
E-55/J-51
-49.3
MAIN L
REAR L
-50.4
-49.2
-49.8
-49.8
-49.8
-49.3
0
0
&3
&4
D661
D662
HZS182
HZS222
0
0
CENTER
12.0
0
0
0
3.3/50
H2
E-00/J-00
0
0
0
3.3/50
-11.9
39.113.4
13.9
0
0.6
0.6
0
0
-48.3
-49.2
-1.1
-48.3
-48.9
0.6
0.6
0
0
-48.3
-49.2
-1.1
-48.3
-48.9
0.6
33P/500
0.6
0
0
-49.2
-48.3
0
-48.3
0
-48.3
-1.1
-48.3
-48.9
0.6
33P/500
0.6
0
-49.2
-1.1
-48.3
-48.9
0.6
0.6
0
-49.2
-1.1
-48.3
-48.9
E-58/J-54
A5
HZS182
HZS182
HZS182
VM97600
VM97600
VM97600
MTZJ18C
MTZJ18C
MTZJ18C
VG44150
VG44150
VG44150
HZS222
HZS182
HZS222
HZS222
VM97620
VM97600
VM97620
VM97620
MTZJ22D
MTZJ18C
MTZJ22D
MTZJ22D
VG44230
VG44150
VG44230
VG44230
x: NOT USED
O: USED / APPLICABLE
D664, 665
901, 902,905-908, 910, 912
HZS182
D661
MTZJ18C
D662
HZS222
MTZJ22D
IC902
UPD78F4218AGF-3BA
UPD78F4216A
4.8
2.7
000000000
4.8
4.8
4.8
4.8
4.8
0
4.8
0
F8
E-55/J-51
4
11.9
0
4.8
4.8
4.8
4.8
0
0
0
0
MAIN µ–COM
0
4.8
4.8
0
0
4.8
0
5
4.8
4.8
-50.9
4.8
4.8
-50.9
4.8
0
4.800.104.6
&5
4.8
4.8
4.8
4.8
4.8
4.8
0
0.1
5.2
0.5
2.705.2
PRV
4.8
0
0
0
5.2
0
1
0
2.5
2.9
4.8
4.8
4.8
4.8
0
4.8
4.8
0
4.8
4.8
B
5.2
0
0.5
0.3
0
RB441Q-40
0
MAIN L
12.0
-0.1
0
6
K5
E-55/J-51
7
E-58/J-54
G5
Point 1 Pin 38 of IC902
E-55/J-51
G3
-0.1
0.1
0
0.1
-11.9
Point 2 emitter of Q910
and collector of Q911
8
9
E-56/J-52
★ 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.
Q910 E
Q911 C
POWER ON
(Connect the power cord)
POWER OFF
(Disconnect the power cord)
PIN CONNECTION DIAGRAM OF TRANSISTORS, DIODES AND ICS.
2SA893A
2SA933S
2SC1890A
2SC2229
2SB1565 2SC4488
2SD1991A
DTC144ES
E
B
C
E
C
B
C
E
B
1SS133
HZS5B2TD
HZS5C2TD
HZS6B2TD
HZS7A2TD
HZS7B2TD
HZS12C2TD
HZS222TD
B
C
E
Cathode
µPC4570C
NJM78L05A-T3
Anode
3: OUT
2: GND
1: IN
NJM2068L-D
8
4
1
LB1641
8
1
1
10
LC75725E
49
64
116
3348
32
17
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