Service manual

CD-CH1500H/CD-CH1500W
– 20 –
Figure 20 BLOCK DIAGRAM (5/6)
CD-CH1500H
TO MAIN PWB
A
B
C
D
+B
+B
+B +B
+B
+B
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
10
1
2
3
4
5
6
7
8
9
11
12
13
14
15
+B
MAIN
MAIN
SUB
WOOFER
+B
+B
+B
IC802
BI950A
TO MAIN PWB
BI960
6
T.F.
SP L-CH
SP R-CH
GND
SP R-CH
SP L-CH
GND
SP L-CH
SP L-CH
GND
SP R-CH
SP R-CH
GND
M
+
+B
-B
-B
-B
+B
FAN MOTOR
DRIVER
FAN MOTOR
DRIVER
RELAY
DRIVER
MICON +5V
+B
+B
+B
-B
-B
-B
+B
+B
-B
+B
+B
+B
VOLTAGE
REGULATOR
VOLTAGE
REGULATOR
VOLTAGE
REGULATOR
-B
HIGH
LOW
1
3
2
Q200
CNP807
Q210
Q212
Q211
D812-D815
D804-D807
CONSTANT
VOLTAGE
REGULATOR
F807
T3.15A L 250V
RY801
SO201
SPEAKER
TERMINALS
RY202
Q209
RY201
Q810
Q805
Q813
Q812
CNP806
F808
T2A L 250V
Q806
IC202
STK40204(2Ch)
POWER AMP.
Q204
Q203
Q208
Q207
Q206
Q201
IC201
STK40271(2Ch)
POWER AMP.
Q205
F801
T2A L 250V
F804
T5A L 250V
F803
T5A L 250V
F806
T4A L 250V
D816
D817
F805
T4A L 250V
IC203
T802
SUB POWER
TRANSFORMER
Q807
IC808
Q809
IC802
KIA7810AP
VOLTAGE
REGULATOR
I C203
KIA4558P
OPE AMP.
T801
MAIN POWER
TRANSFOMER
MO200
FAN
MOTOR
Q202
M+10V
A_+10V
A_GND
M_+10V
BIAS_GND
TO DECK SECTION
D_GND
FAN_CTL
D_GND
-8V
AC_RLY CTL
UN_SW 5V
SP_RLY
SP_DET
8
3
4 6
1
7 2 5
CD_GND
M_GND
CD_+B
M_10V A_GND
A_+10V
M_10V
M_GND
CD_GND
CD_+B
A_GND
A_+10V
A_GND2
R-CH
L-CH
15
14
13
12
11
9 8
6
7
5
4 3
2
1
10
+
+
–
–
–Vcc
+Vcc
Ch1
Ch2
Ch2
Out
Out
Ch1
8
7
5
4
3 2
1
+ +
–
–
3
2
1
Out
Ch2
Out
Ch2
Ch2
Ch1
–
–
+
+
+Vcc
–Vcc
AC 230 V, 50 Hz
-
+
+
-
+
-
+
-
JK701
HEADPHONES
L802
AC LINE
FILTER
AC POWER
SUPPLY CORD
K801 K802
SP RELAY
ON-OFF