Sharp CD-BK270W Service Manual

– 19 –
CD-BK250W/CD-BK2600W/CD-BK270W
Figure 19 BLOCK DIAGRAM (3/3)
SW601
SPAN
SELECTOR
CD-BK270W ONLY
Q914
KTC2026
KIA7810AP
VOLTAGE REGULATOR
Q907
Q908
–VF
VF2
VF1
Q901
+B5
+5V
SW5V
KIA7805AP
CONSTANT VOLTAGE REGULATOR
IC904
+B4
+B3
+B1
-B1
–B2
+B5
+B3
+B5
-
13 44
+B4
–
16
–
Q701-Q703
R
L
ATT
–20 dB
+B5
RX701
REMOTE
SENSOR
–
B2
+B4
IC561,IC562
KIA4558P
OPE AMP.
IC701
IX0427AW
(2/2)
IC562
IC561
1
07
1
08
D902~D905
D901
RL914
JK701
HEADPHONES
M901
FAN
MOTOR
M
Q906
Q709
Q902
Q903
Q905
Q904
Q601
Q602
IC903
IC902
IC901
STK4029S
POWER AMP.
A+10V
M12
F903
T2A L 250V
F904
T2A L 250V
F902
T4A L 250V
F901
T4A L 250V
+Vcc
– Vcc
R-OUT
L-OUT
CLK
SO901
SPEAKER
TERMINAL
SR1
SURROUND
SPEAKER
TERMINAL
31
REC/PLAY
C
LK
CE
DI
VLOAD
RESET
+B5
+B5
+B5
+B5
VDD
VDD
VDD
SP. DET.
–
CE DI DO
4
XL700
4.194304 MHz
–
L
R
BIAS
T1/T2
T
ING
AVDD
SW701-SW703
SW712-SW732
KEY
TO CD
SECTION
IC701
IX0427AW(1/2)
SYSTEM
MICROCOMPUTER
FL701
FL DISPLAY
O
R
R
L
X
351
6
kHz
21
23
89
81
32
80
4948
47
93
14
92
90
12456 78
15
1
29
28
9
78
67
6 132
3
2
1
7
8
4
1
13
7
8
10
100
4
24
2
1
33
31
4546
11 12 13
9
1 0 16 1 7 20 2123
15
2224
79
5761 56 5453 5251 5055 4948
4344 42 40
39
36
35
34
3
14
15
T.F.
PT801
POWER
TRANSFORMER
110 V
127 V
220 V
230-240 V
SW801
VOLTAGE
SELECTOR
AC POWER
SUPPLY CORD
AC 110/127/220/
230-240 V, 50/60 Hz
RESET
CD-BK250W/CD-BK2600W: 6 ohms
CD-BK270W: 8 ohms

Sharp CD-BK270W Specifications

General

Brand	Sharp
Model	CD-BK270W
Category	Stereo System
Language	English