A
1
2
3
4
5
6
8
DSP-A5
B C D E F G H I J KL
7
E-53/J-51
■ SCHEMATIC DIAGRAM [MAIN (2/2), POWER]
REAR L
MAIN L
CENTER
LFE
0
0
0
0
–33.6
45.0
0
0
–45.1
AC71.1V(54.2V)
32.9
12.8
6.5
12.8
0
0.7
0
0
6.5
00
6.3
6.3
12.8
AC12.8V
AC48.1V
AC32.2V
AC9.8V
5.2
19.9
–19.9
0
0
0
30.2
–30.2
0
0
5.1
10.5
5.0
0
9.6
5.0
0
10.3
12.0
–23.8
–24.5
24.5
0
0
0
19.5
–28.8
23.8
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
–11.4
11.4
–11.0
11.4
–11.0
11.4
28.5
0.3
0
0.5
1.7
0 .3
0.7
1.7
10.5
0.7
0.5
–23.8
24.4
–11.6
0
–19.6
–4.9
0
–19.5
POWER SUPPLY
MOTOR DRIVE
REGULATOR
VOLUME AMP
POWER SUPPLY
SUB POWER SUPPLY
TO MAIN(1) W504
page E-52/J-50
I-8
TO MAIN(2) W507,508
page E-52/J-50
J-4
TO MAIN(1) #16
page E-52/J-50
I-4
IMPEDANCE
SELECTOR
X : NOT USED : USED
TO MAIN(6) CB507
page E-52/J-50
A-6
VOLTAGE
SELECTOR
AC OUTLETS
VOLUME
TO INPUT(1) #401 page E-48/J-46
G-1
MAIN (3),(4)
POWER (1), (2), (5), (6), (7)
X : NOT USED : USED
★
All voltages are measured with a 10M
Ω
/V DC electric volt meter.
★
Components having special characteristics are marked and
must be replaced with parts having specifications equal to those
originally installed.
★
Schematic diagram is subject to change without notice.
IC404 : LB1641
Motor Driver
A OUT
A –IN
A +IN
V–
V+
B OUT
B –IN
B +IN
IC401~403 : NJM2068D-D
Dual OP-Amp
Conditions (DSP-A5)
• INPUT → CD
• VOLUME → minimum(–∞)
• IMPEDANCE
SELECTOR → Left
• PRO LOGIC → On
PIN CONNECTION
DIAGRAM OF DIODES,
TRANSISTORS AND IC’s.
S5VB20
1T2
1SS133
1SS176
HSS104
Anode
Cathode
MZS5C2TD
1N4002S
HZS12B2TD
HZS242TD
2SA1015(Y)
2SC1815(Y)
E
C
B
NJM78M05FA
NJM7805FA
NJM7812FA
S1VB20
D2SBA20
2SC1740S(R,S)
E
C
B
2SD2396(J,K)
1.OUTPUT
2.COMMON
3.INPUT
NJM79M05FA
NJM79M12FA
1.COMMON
2.INPUT
3.OUTPUT
LB1641 NJM2068D-D
10
w
w
w
.
x
i
a
o
y
u
1
6
3
.
c
o
m
Q
Q
3
7
6
3
1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
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