Service manual

– 17 –
CD-BA120/125
Figure 17 BLOCK DIAGRAM (3/3)
PT801
POWER TRANSFORMER
5V
~
REC/PLAY
VLOAD
+B4
RESET IC
SYS. STOP
RESET
IC704
Q707
+B2
SPEAKER
TERMINAL
(FRONT)
(REAR)
SO901
+B4
+B4
+B4
+B4
VDD
VDD
VDD
R-OUT
L-OUT
SP. DET.
UNSWITCH
+5V
A10V
+B4
+B3
+B2
+B1
~
IC904
IC902
Q903
SYSTEM
MUTE
Q601
Q602
CE DI CL DO
+B4
XL701
~
D911~D914
D907~D910
F902
1.6A/250V
F901
3A/250V
~
~
~
~
+Vcc
IC901
LA4282
POWER AMP.
BIAS
T1/T2
AVDD
KEY
SW701~SW703
SW709~SW721
SW723~SW725
TO CD
SECTION
AC POWER
SUPPLY CORD
AC 120V 60Hz
TF
IC701
IX0336AW
SYSTEM
MICROCOMPUTER
FL701
FL DISPLAY
~
~
11
10
5
2
7
1
3
3332
78
91
80
100
27
31
13
11
10
6 5
4 1
2
99
92
33
31
45
46
7
11 12139 10 15 16 17
20
21 22
24
71
79
59 58
57 5554 53
52 51
49
48
47
44 43 42
44
39
38
37
36
35
34
3
2
1
Q901
Q902
30
40
5056
23
L
R
JK901
HEADPHONES
CD-BA125 ONLY
Q701
Q904
2118
17
14
2220
191615