Yamaha HTR-5450, Руководство по обслуживанию, Страница: 46 / 66

A
1
2
3
4
5
6
7
8
9
B C D E F G H I J K L
SCHEMATIC DIAGRAM (OPERATION)
E-56/J-52
RX-V520/RX-V520RDS/HTR-5450/HTR-5450RDS/DSP-AX520
x: NOT USED
O: USED / APPLICABLE
Point 1
Pin 38 of IC902
Point 2
emitter of Q910
and collector of Q911
POWER ON
(Connect the power cord)
POWER OFF
(Disconnect the power cord)
Q910 E
Q911 C
★ 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.
2SA893A
2SC1890A
2SC2229
E C
B
2SA933S
2SD1991A
DTC144ES
E C
B
PIN CONNECTION DIAGRAM OF TRANSISTORS, DIODES AND ICS.
B C E
2SB1565 2SC4488
E
C
B
1SS133
HZS5B2TD
HZS5C2TD
HZS6B2TD
HZS7A2TD
HZS7B2TD
HZS12C2TD
HZS202TD
HZS242TD
Anode
Cathode
µ PC4570C
1
4
8
LB1641
1
10
NJM2068L-D
1
8
LC75725E
1 16
17
32
33 48
49
64
NJM78L05A-T3
1: IN
2: GND
3: OUT
FL DISPLAY
FL DRIVER
MAIN µ–COM
E-55/J-51
F3
E-55/J-51
I4
E-55/J-51
G3
E-55/J-51
B8
E-55/J-51
F8
E-55/J-51
H2
E-55/J-51
C6
E-55/J-51
K5
E-58/J-54
G5
E-58/J-54
A5
E-58/J-54
G4
PR
V
1
2
~
-29.2 -29.2 -29.2 -29.2 -29.2
2.5 2.5
4.8 5.2
0 0 0
-29.1
0 ~ ~ ~ ~
-29.2
~ ~
-29.2 -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
-21.7 -21.7
-29.1
~ ~ ~
4.8
~
4.8
~
4.8
~
~
~
~
~
~
-29.2
~
~
-29.2
~
~
-29.2
~
-29.2
~
-29.2
-29.5
~
~
~
~
~
~
~
~
~
~
-29.5
~ ~
~
4.8
~
4.8
~
4.8
~ ~ ~
~
5.2
4.8 2.7 4.8
0
0.5 2.7
0
5.2
4.8
0
0.1
0
4.6
0 0 0 0 0 0 0 0 0
4.8 4.8
0
4.8
4.8
0
0 4.8 0 0
4.8 4.8
4.8 4.8 4.8 4.8
4.8
4.8
0
0
5.2
0
0
0
4.8
4.8
4.8
4.8
0
0
0
0
4.8
0
11.9
0
4.8
4.8
4.8
0
4.8
4.8
4.8
2.9
2.5
4.8 4.8
0.1
0
0
0
0
5.2
0
5.6
5.2
2.7
0
0
0
0.5
0 4.8 4.8
0
0.3
0.5
0
4.8
4.8
4.8
-50.9
4.8
4.8
-50.9
4.0
5.0
0
12.0
0
-0.1
-0.1
0
-11.9
0.1
0.1
12.0
0
0
0
0
-11.9
0
0
-1.1
0
39.1 13.3
13.8
0
-51.4
-52.0
0.6
-52.6
-51.4
-52.6
0
-51.4
-52.0
0.6
0
-50.6
0.6
-51.4
0.6
0
-50.6
0
0.6
-51.4
0.6
0
-50.6
-51.1
-1.1
-50.6
-51.1
0
0.6
-51.4
0.6
0
-50.6
-50.6
-51.1
-1.1
0
0.6
-51.4
0.6
0
-50.6
-50.6
-51.1
-1.1
0
0.6
-51.4
0.6
0
-50.6
-50.6
-51.1
-1.1
0
0
0
0
0
-11.8
0
11.9
0
0
0
0
0
-11.8
0
11.9
0
0
0
0
0
-11.8
0
11.9
0.5
0.7
10.7
1.8 1.8
0.5
0
10.7 0.4
0
0.7
5.6
12.7
7.3
12.0
0.6
0
12.7
12.7
6.6
0
MAIN L
CENTER
REAR L
MAIN L
MAIN L
CENTER
B
A
&4
RB441Q-40
0.047F/5.5
3.3/50
3.3/50
33P/500
33P/500
IC902 UPD78F4218AGF-3BA
UPD78F4215A
HZS223
VP91450
HZS1B2
VN97600
MTZJ18C
VG44150
3.3/50
3.3/50
3.3/50
3.3/50
18K
18K
820
820