Sanyo DC D30 Service Manual page 51

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BLOCK
DIAGRAM (TAPE
DECK
AMPLIFIER)
DECK A :
1C370
PEAY BACK
PRE-AMPLIFIER (3)
R-CHee
« §
IC375 REC/PLAY
Ll?
SWITCHING
L-CH
nei
nex SS
as
RECORD/
i
PLAYBACK
HEAD
R-CH
me
10:
J.
|
TRAP COIL
nf
lo
5
bos
a
ied
SARE
Latta
L3300
BIAS-OSC.
al
|
TRANSFORMER [JOS
|
03301
ERASE
BIAS-SHIFT
HEAQ
DRIVER
BLOCK
TO PRE-AMPLIFIER
PCB
TO CO/TUNER
UNIT
03300 +3303
RECORD
AMPLIFIER
(ie)LINE IN(L)
(ia)PLaY INCL)
IC351
(3)PLAY IN(R)
(1) LINE IN(R}
OOLBY
NOISE
REDUCTION
LIne ouTito(i1)
rec ouTiL) (9)
REC ouT(R) (6)
Sve35
LIne ouT(R)(6)
SWITCHING
03730
Q3830
SWITCHING
L3551
MPX
COIL
ao
fs)
i
a
i
we
4
MUTE
a
=
x
'
EAT
x
uT Ro
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i
AGC
AS
CILLATOR
Q3107+3108
OUBBING
H/L
SWITCHING
Q3106+3109
DECK
A/B
NORMAL /CHROME
SELECT
SWITCHING
Q3105 +3302
DIAGRAM (FRONT)
TO FRONT SWITCH | PCB
TO FRONT SWITCH 2 PCB
TO TAPE DECK AMPLIFIER PCB
TO MECHANISM-8
REC
MUTE
SWITCHING
Osc
SWITCHING
"03101
102
Q3103+3104
DOLBY
REC/PLAY
SWITCHING
° 2 ~ 3 TO POWER
AMPLIFIR
PCB
TQ MECHANISM: A
70 a6 42 a ar oO 7
I¢501
BANG PASS
——
FILTER FOR
SPECTRUM
ANALOZER,
GEON
CREKSE
BE oxi
a
IcS00
MICRO
PROCESSOR
IC700
AF
POWER
4740-04741 +047:
RELAY DRIVER
04901
Q4903
.
VOLTAGE
1SV REGULATOR
94904 04905
~15v VOLTAGE
REGULATOR
1c900
~g
VOLTAGE
FOR TAPE DECK
REGULATOR
1¢903
+ i2v VOLTAGE
£99
s1zv VOLTAGE
qSEGULATOR
1C302
~
s12v VOLTAGE
REGULATOR
REGULATOR | "MB.
AMPLIFIER
(3)
LJ) PowER MUTE J— aa
re
~_] 95003-0500
SWITCHING
CN302
10 FRONT DISPLAY PCB
UH
42
RECTIFIER
04300
cN802
R-CH
SPEAKER
TERMINAL
POWER
AMPLIFIER
-74-
P.T
SECONDARY
CB
AC-IN
|
ay etl
P.T
PRIMARY
PCB
BLOCK
DIAGRAM (PRE-AMPLIFIER)
TO TAPE DECK AMPLIFIER PCB
3
wore
<
<3252z
Sutsise
w
| PRE-AMPLIFIER PCB
"BEAT CANCEL
o~0-
* S3101
Ic7or
+
+
7
=
t
l
l
ae
04301 04307
04306-04308
4309
|
fo43o2
a4 305
04302
04304
SWITCHING
SWITCHING
WITCHING.
WITCHING.
SWITCHING}
|SWITCHIN!
SWITCHING
T VIDEO
a
alias
co
TAPE
301
C430 9
FUNCTION KEY
CONTROLLER
1C703
i
+
+
ELECTRONIC
VOLUME
FOR
GRAPHIC
EQUAL
+
ul
4002
SWITCHING
ae
Ce
Pp
oo
1C607
TO POWER
AMPLIFIER
PCB
ame
ape eee
ae
Q3202
LED
DRIVER
TAPE
B
TO POWER
AMPLIFIER
PCB
Tehe qoaqge
a
18 te oe ta 1s 18
es a es Gis
PCB
FRONT
SWITCH
1
TO SP
TERMINAL
PCB
PHONES |"
ssl
r
sii
~
ak
TO PRE-AMPLIFIER
PCB
BALANCE
ao
TO POWER
AMPLIFIER
PCB
TO FRONT
PCB
Ic551
MICRO
PROCESSOR
LCD
ORIVER
LCD51
LIQUID
CRYSTAL
DISPLAY
0555!
-
D5570
|LED(LCD_BACK LIGHT)PCB!
-75-
O5503
LED
DRIVER
LED
ORIVER
Zs:
6+
0
oni
1210 8109 |
P
a
05501
= lee
2
9
LED
i
5
z
DRIVER
+
+
=
&
~
Bb
z
ls B
a
oh
Oc
<
w
oe
fetch abet het'
:
; F 2
a
+4
KEY
SWITCH
| FRONT
DISPLAY
P
|

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