CD-E250 (serv.man13). Block diagram - Sharp Audio Service Manual (repair manual). Page 2

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– 19 –
CD-E250E
CD-E550E
T101
POWER TRANSFORMER
–30 V
SO101
SPEAKER
TERMINAL
CD-E550E ONLY
FRONT
SURROUND
R-OUT
L-OUT
RLY101
VF2
VF2
VF1
VF1
–B2
+B5
+B1
+B2
+B2
–B1
Q206
SYSTEM
MUTE
Q101
Q102
Q103
Q104
Q108
Q109
Q105
Q106
Q203
Q201,202
Q204,205
D905~D908
D901~D904
F903
T1.6A L 250V
F901
CD-E550E:T5A L 250V
CD-E250E:T4A L 250V
F902
CD-E550E:T5A L 250V
CD-E250E:T4A L 250V
+VCC
–VCC
PRE
–VCC
PRE
+VCC
IC101
CD-E550E:STK40207
CD-E250E:STK40205
POWER  AMP.
AC  POWER
SUPPLY  CORD
AC  230-240 V,50 Hz
SO601
VIDEO/AUX IN
7
6
4
1
15
10
11
+B4
IC203
KIA7808API
VOLTAGE
REGULATOR
+B3
DGND
+5.6 V
+5.6 V
IC201
KIA7805API
VOLTAGE
REGULATOR
A_12V
CD_7V
CD+B
+B2
+B3
+B3
IC202
KIA7812API
VOLTAGE
REGULATOR
8
9
12
L
R
JK101
HEADPHONES  
FROM
DISPLAY SECTION
CNS202
FROM
DISPLAY SECTION
CNS102
FROM
DISPLAY SECTION
CNS901
FROM
CD SECTION
CNS204
M
M101
FAN
MOTOR
FAN MOTOR
DRIVER
Q901
VOLTAGE
REGULATOR
VOLTAGE
REGULATOR
Q207
Q107
Q208
+B5
+B4
CD_+B
MUTE
SIGAL_LVL
SP_RLY
SP_DETECT
FAN_START
FAN_PRT
CL
CE
DI
L
R
L 
L 
R 
R 
R 
L 
TAPE
TUNER 
CD
IC601
LC75341M
AUDIO  PROCESSOR
21
4 
24
2 
1 
8 
18
17
11
3
15
10
R 
L 
AUX
16
9
7
23
14
12
13
+B2
6
5
4
3
2
1
6
7
5
4
3
2
1
1
2
3
4
5
CL
CL
DI
DI
CE
DO
DO
+7V
D_GND
M_GND
D_GND
5
4
3
2
1
202
CNP204
CNP102
CNP901
 Figure 19 BLOCK DIAGRAM (2/4)

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