Service manual

– 21 –
CD-BA250H/CD-BA2600H
Figure 21 BLOCK DIAGRAM (3/3)
+B7
UNSW 5 V
SW +5 V
+B5
D806
Q801
IC905
AN78L05
VOLTAGE REGULATOR
D802-805
PT802
SUB POWER
TRANSFORMER
PT801
MAIN POWER
TRANSFORMER
RL801
L801
LINE
FILTER
Q914
Q907
Q908
AC 230 V, 50 Hz
–VP
VF2
VF4
Q901
+B6
SW 5 V
IC904
KIA7805AP
CONSTANT VOLTAGE REGULATOR
+B4
+B3
+B1
–B1
-B2
+B6
+B3
+B7
-
-
+B4
-
-
Q701-Q703
R
L
+B5
RX701
REMOTE
SENSOR
IC701
IX0401AW
(2/2)
P
P.
D902~D905
D901
RY914
JK701
HEADPHONES
M901
FAN MOTOR
M
Q906
Q709
Q902
Q903
Q905
Q904
Q603
Q604
Q612
Q613
IC903
KIA7810AP
VOLTAGE REGULATOR
IC902
KTC2026
IC901
STK4029S
POWER AMP.
F903
T2A L 250V
F904
T2A L 250V
F902
T4A L 250V
F901
T4A L 250V
+Vcc
–Vcc
L-OUT
R-OUT
CLK
MAIN
AC POWER
SUPPLY CORD
REC/PLAY
VLOAD
RESET
GROUND
+B7
+B7
+B7
+B7
+B5
VDD
VDD
VDD
SP. DET.
-
CE DI DO
XL700
4.194304 MHz
-
BIAS
T1/T2
AVDD
KEY
SW701-SW707
SW712-SW718
SW720-SW727
SW729-SW732
TO CD
SECTION
IC701
IX0401AW
SYSTEM
MICROCOMPUTER(1/2)
FL701
FL DISPLAY
42434446 4547
3123
89
80
44
33
78
494847
13
93
1614
92
90
12456 7
15
1
29
28
9
67
6
132
3
2
1
7
1
13
7
8
10
100
33
31
11
12
13
910
15 16 17 20 21
23
22 24
79
64 54 5253 51 4849 40
39
36
35
34
T.F.
6366 65 55 50
A+10 V
M+12 V