Service manual
CD-MPX870
4 – 3
Figure 4-2: BLOCK DIAGRAM (2/3)
IC854
AN78L05
+B5
+B PROTECT
+B6
+
LV
ÐL
V
ÐH
V
PT801
MAIN POWER
TRANSFORMER
+B6
SW5V
D803
IC851
AN80T53
VOLTAGE REGULATOR
D905
AC 120 V, 60 Hz
ÐVF
VF2
VF1
A+10V
Q801
+B3
+B7
+B4
+B8
D+5V
+B9 A_+5V
+B1
+B2
ÐB1
ÐB2
+B8
+B7
R
L
+B5
RX701
JOG701
JOG
VOLUME
SENSOR
REMOTE
D804
D802
D801
RL914
JK692
HEADPHONES
MOTOR
DRIVER
SPEAKER
RELAY
M901
FAN MOTOR
SO902
SPEAKER
TERMINAL
M
Q906
Q905
Q709
Q713
Q904
Q901
Q903
Q902
D906
D907
2A/125V
F803
2A/125V
F804
5A/125V
F805
F801
5A/125V
F802
5A/125V
L-OUT
R-OUT
KLC
4.19 MHz
RESET
L-CH
R-CH
AC POWER
SUPPLY CORD
R
EC/PLAY
VLOAD
TESER
YA
L
P
/
CER
2
T
/1
T
SA
IB
1F
1
F
2F
2
F
+B5
+B5
+B5
+B5
DDV
DDV
Y
LR_PS
D
DV
SP. DET.
-
EC
I
D
O
D
XL701
-
BIAS
T1/T2
AVDD
PHOTO
SW707-SW716
SW701-SW705
KEY
SECTION
TO CD
T.F.
IC701
IXA101AW
SYSTEM
MICROCOMPUTER
FL DISPLAY
FL701
5150
27 471 2 54
80
78
98
26
25
1
2
4
6
3334
11
7
8
2
5
6
+
HV
1
3
3
7
2
6
1
1
14
18
99
79
52 53
51
1
2
3
100
17 1642 18 13 10 20 23 30 31
41
55 5
27
26
8
141540
8
-
-
CONSTANT
VOLTAGE REGULATOR
LD+8V
M+13V
A+10V
+5V
IC901
- --
57 77
-
IC901
STK412-420
POWER AMP.