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' E E ADDITIONAL
INFORMATION |
2-3. SCHEMATIC DIAGRAM.
1
2
3
4
5
6
7
8
9
10
11
12
13
14°
15
16
[MAIN BOARD]
ae
Q102-109, Q111-113 Pet D103
Wea
RIt0
a
20.3
POWER
AMP
WGET13A
:
a10s
(INVERTING AMP)
L
Wal gece 112
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a103
=>
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coker
iy
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) 16.3
eS
S411
2saligé2
|
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2863330
OVER LOAD
OS
-0.6
a
6105
1
Q102
Q103
68p /500V
2801815
281815
24
;
R112
R113
0
3.3K
B
Q512
ak
26
1/8W
L
+B REG
SS
|
2SA1015
4612
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6155.
2862712
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chau
:
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(C)
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se
500V
50V
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820p
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REAR
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NGTISA
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12H
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uals
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NJM4560
VR501
tan
LEVEL REAR
:
-15.5
Q513
~208
E
iC501
28A1162
-B REG
i
PREAMP
BALANCE AMP
0202-209, Q211~- 213
POWER AMP
(INVERTING AMP)
R209
15K 1/4W
AM
F
mp
—
C208
Q314
0301
3.3K
20.8
OVER
LOAD
WG713A
| . 312
14.2
19.8
12802438
R323
1K 1/8W
PHSO1
PC817-C
14.3
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2
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R306
R504
CN504
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NJM4580
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2.2K
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SPEAKERS
H
1/8W
0
frac di chooks
0302-309, Q311-313
po
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C302
aN
(INVERTING AMP)
10#/50V
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2803327
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1/8W
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R303 47k 1/4W|
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503
6314
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20K |
20P
6308
820p
co
500V
1OP/500V
MONO
FRONT
ey
c4i4
R502 36k. 1/8W
]
820p
AMY
R427
10
S
R (MONO)
Q414
1/26
+
eee
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Ll.
a
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Seek
|
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33K
1/8W
500V
0.047¥
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10#/50V
10K 1/8W
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er
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+
2803327
=>
(6) -
[=]
C403
R402
4
104/50 10K 17ew
sO
MUTING
10502
«2/2)
VR502
PREAMP
(BALANCE
AMP)
0
—/
2801841
= @qo2-409, 0411-413
-20,4
POWER AMP
(INVERTING AMP)
R409
K
15K1/4W
0557, 558, 561
INVERTER
as57 5
asé1
7902785,
_(F") | gs72. 1RFPOS4
Be nee
L
0558
.
501
|
2SA1048
TENN
OB
eS
thee
ops
yt oe
+0504 4] C505
SNS
+[.6507 4| 6508
(7
jects i
0563, 551
10
Ipepos4
.
B—-
OVER VOLTAGE
©)
iv
0559, 560, 562
nee
M
DET.
143
14.34
INVERTER
220
|
-
R550 10K 1/10W
sees
IC55
Gant
:
LED
SWITCH
DC-DC
CONVERTER
501
'
iH
.
Q563
Q551
5
DRIVE
=
B+
a
B+
143 2SA1162 2881123
B+
|
THss)
2588 |
:
a
so ihe
|__|
All
asss
d)2
2SA1162
0555, 56
PROTECT SWITCH
GO
0
1¢551
r
FPC4S4GS
'
QO RO
0.1
—
R558 470K
2
BI
Oo
556
N
0.047%
160V
(2)
AW
RO
S
C541
3308
GND
é
0
Q952
0553,
566
R556 C5460 R557
R561
TH552
D557
Q554
R569
C564
2862712
DOWN
VOLTAGE
12K
820P
10K
1K 1/10W
ae,
GL9ED4
UN2216
10K 0.01F
REMOTE
SWITCH
DET
1/0W
1/10W
re
re)
COTC143TK1/10W
:
'
0564
LED DRIVE
UN2211
ERROR
DET.
POWER/ PROTECTOR
XM-2540/2540S
_ 2-4. SEMICONDUCTOR
LEAD
LAYOUTS
IRFP054
2SB1123T
DTZ5.6B
ANODE
\
CATHODE
UN2113
2SB1587-O
GLSED4
2SA1162
2SD2438-O0
28C2712-G
Hi
MA152WK
2SC1815-Y
UN2211
28C3327-B
UN2216
:
c
_
t
Cc
'
MA3075M-TX
2SC3330T
MA3160M-TX
2SA988-PAFAEA
7"
2SC1841-PAFAEA
2
BCE
NC
Ec.
ee
ae
MA3180
28D1631-TPF2
4
2SA1015-GR
a
gs
2
ae:
fo]
Eb
-2
3
4
PC817-C
FMG-32R
2SA1175-HFE
FMG-32S
=
*
2SC2785-HFE
letter side
:
-
"
'
4
2
3
188119
cathode
-1C Block Diagrams
IC551_ 1 PD494GS
seode
Note:
e
All capacitors are in wF unless otherwise noted.
pF: uF
50WV
or
less are
not
indicated
except
for electrolytics
and tantalums.
®
All resistors are in 2 and '/,W or less unless otherwise
specified.
a}
: nonflammabie
resistor.
: B+ line.
e
[ERM : B- line.
@
Power
voitage
is dc 14.4V
and
fed with
regulated
dc
power
supply
from
external
power
voltage
terminal
(CN501).
@
Voltage
and
waveforms
are
dc
with
respect
to ground
under no-signal conditions.
@
Voltages are taken with
a VOM.
(Input impedance
10MQ)
Voltage
variations
may
be noted
due to normal
produc-
tion tolerances.
@
Signal path.
c>
:L-ch
co:
R-ch
sis
44 ae
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