Sanyo M7770K - Schematic Diagram (Amplifier)

SCHEMATIC DIAGRAM (Amplifier)
TO RADIO TUNER
/Lch Rech \
J6-|
(LEFT)
T
—
hao
a301
2SC536
ic301
MS1544L
o101
2SC536
ic302
LA4192S
BMI
82K>
S
68K
MIKE
MIXING
AMPLIFIER
PRE
AMPLIFIER
LINE
AMPLIFIER
POWER
AMPLIFIER
BUILT-IN
MIKE
aw)
)
ya
_
‘
J7-!
0
O~-©O
LINE
OUT
=r)
D
RI22
2.2K
SPIOI
SP102
226P
RiIO8
7.5K
or
EAE
oe
|
SPEAKER
-
-
.
6
h
T
337
,s43
(ern)
|
pean
MIKE
JACK
NES/
(LEFT)
"EXT.
SPEAKER
JACK
C31Om"
|
ci24
Ri29
Pie
ci23_
-
!000y|J—}
2200p
47
J3
VRI-3
°
47ulov.
=
16V=_|
‘ov
1/2w
HEADPHONES
JACK
W-20K
:
Tn
BALANCE
"10
WW
“3
J2
MIKE
JACK
a
(RIGHT)
R226
|pe0a
+=
2.2K
|Iss95
R227
R128
I/4W
B24
27K
SP202
Saat
:
_——]
206
ohm
:.
2
>
>
Bek
rey
Bele
55)
(RIGHT)
I-2
R205 paw
RECORD/PLAY
HEAD
"YO
=
[0.00
8)
+
pe
TD
Y,
C
2
R222
(
j
e
J6-2
R2I7
L201
33mH
R208
s-5(©)
TO_RADIO
TUNER
LINE
IN
oees
7.5K
e201
2SC536
R235
J7-2
Fa
TEaN
=
(RIGHT)
ae
0
LINE
AMPLIFIER
15K
Ko?
LINE
our
J
+B
LED
+
.
:
S5-4
c229
|
$3-2
A563
S2-II
S5-|
R232
C203
P
L_==
C204
0
SLPISS
A
-9
18K
a
eee
|
Meese
ts
aaa
fen
ic
B®)
Fit
STEREO)
i
RIZ2
cere
;
+]
31
Q304f
/
L30l
18K
C32l.
eaQo
e401
2SC2021
o4022SA937
—f
470p
uo
one
EXT
POWER
JACK
R3I2_2305,0306,0307,0308
2SC536
icaoiTC 9138
D403
=
eV
R310
Rei
)) 40%
100
AMSS
CONTROL
CIRCUIT
camss
ino
5.6
HD2
,
—
ERASE
HEAD
r
D302
+0312
(MMI.
SWITCH
MTZ6.8AP —|
220p
a
L
—Liov
1
BATTERY
7
#
UM-2x6
T—
SLI
5
G3aP
C327
SOLENOID
390P
a304
2SD734
VOLTAGE REGULATOR
e302 2SD734
OSC CIRCUIT 315 R415
:
A’)
0402
C319 S
1 50V |—
' {4 PROGRAM py
is
R324
_
D304
Switch
R322 680 SLPI558
: R323 (RECORD/BATT.) R401 = SR402 C405 R417
3 (a ae -[ 6.47
9303 2SC536 | + : 24K | 127K, oat 1 O {220 = 50V
= 33K™ = =
+]'c404
“
pas ~#F 10y 16v S10
174W = AMSS SWITCH 8
R320
|
330
—31- | me 9 ame