Yamaha HTR-5450 Service Manual page 48

A B
RX-V520/RX-V520RDS/HTR-5450/HTR-5450RDS/DSP-AX520
SCHEMATIC DIAGRAM (MAIN)
1
52.5
1.0
52.5
1.0 0.5 0.5
0
0
-0.4
-1.1
2
0
-0.5
-0.5 0
-1.1
-52.6
0
-52.6
MAIN L POWER AMP
52.5
52.5
1.0
3
0.5
0.5
1.0
0
0
-0.4
-1.1
0
-0.5
-0.5
0
-1.1
-52.6
0
-52.6
MAIN L
MAIN R POWER AMP
4
52.5
52.5
1.0
0.5 0.5
1.0
0
0
-0.4
-1.1
0
5 0
-0.5
-0.5
0
-1.1
-52.6
-52.6
REAR L
REAR L POWER AMP
52.6
1.1 52.6
0.5
0.5
1.1
0
0
6
-0.4
-1.1
0
0
-0.5
-0.5
-1.1
0
-52.6
-52.6
REAR R POWER AMP
7
52.6
52.6
1.0
0.5
0.5
1.0
0
0
-0.4
-1.1
0 0
-0.5
-0.5
-1.1 0
-52.6
8
CENTER
-52.6
CENTER POWER AMP
# All voltage are measured with a 10MΩ /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 E-58/J-54
C D E
52.2
0
0
0.1
0
0.1
52.2
0
26.9 13.8 0.5
0.5
0.7
0
-29.4
-36.1
-30.1
52.2
0
0
52.2
0
0.1
0
27.4 14.3 1.4
14.3 1.4
52.2 0.7
0
0
F G
0.1
0
POWER RELAY
12.8
0.1
0.8 0.1
0
52.6
(38.5)
0
0.1 0.1
0 0
AC
77.5
35.8 35.8
-51.1 0 -0.1
0
H I
12.8
6.8
6.8
AC
12.9
0
-52.7
(-38.5)
AC
56.8
VOLTAGE SELECTOR
240V 1-2/5-6
220V 2-3/6-7
110V 3-4/7-8
120V 4-5/8-1
J K L
x: NOT USED
O: USED / APPLICABLE
PIN CONNECTION DIAGRAM OF
TRANSISTORS, DIODES AND ICS.
2SA970 2SA1708
2SA1015 2SC4488
2SC1890
2SC1890A
2SC2240
B
C
E E
C B
1SS133
2SC1740S
1SS270A
1T2
HZS5B2TD
HZS12B2TD
HZS302TD
Anode
E
C B
2SD2396
Cathode
S1VB20
B C
E
–
~
2SA1695
~
2SC4468
+
S5VB20
–
~
~
+
B
C E
~