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-V420/RX-V420RDS/HTR-5440/HTR-5440RDS/DSP-AX420
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
HZS222TD
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-00/J-00
H2
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
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
13.4
13.9
0
-49.3
-49.8
0
-50.4
-49.2
-49.8
0
-49.3
-49.8
0
0
-48.3
0.6
-49.2
0.6
0
-48.3
0
0.6
-49.2
0.6
0
-48.3
-48.9
-1.1
-48.3
-48.9
0
0.6
-49.2
0.6
0
-48.3
-48.3
-48.9
-1.1
0
0.6
-49.2
0.6
0
-48.3
-48.3
-48.9
-1.1
0
0.6
-49.2
0.6
0
-48.3
-48.3
-48.9
-1.1
0
0
0
0
0
-11.7
0
11.8
0
0
0
0
0
-11.7
0
11.8
0
0
0
0
0
-11.7
0
11.8
0.6
0.8
11.1
1.8
0.4
0.6
0
11.1
0.8
0
0.8
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
&5
0.047F/5.5
RB441Q-40
3.3/50
3.3/50
33P/500
33P/500
HZS182
VM97600
MTZJ18C
VG44150
HZS182
VM97600
MTZJ18C
VG44150
HZS182
VM97600
MTZJ18C
VG44150
HZS222
VM97620
MTZJ22D
VG44230
HZS182
VM97600
MTZJ18C
VG44150
HZS222
VM97620
MTZJ22D
VG44230
HZS222
VM97620
MTZJ22D
VG44230
D661
D664, 665
901, 902,905-908, 910, 912
HZS182
MTZJ18C
D662
HZS222
MTZJ22D
IC902
UPD78F4218AGF-3BA
UPD78F4216A
3.3/50
3.3/50
3.3/50
18K
18K
3.3/50
820
820
&3 D661
HZS182
&4 D662
HZS222