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QQ
3 7 63 1515 0
• HP/MIC section
IC761 M65850P
14
13
12
OSCILLATOR
1/2 VCC
CLOCK
AUTO
MAIN
RESET
RESET
CONTROL
D1
A/D
LPF1
2
3
1
• CD motor section
IC201 TA8409S
STANDBY
BLOCK
TE
L 13942296513
HEAT
CUT OFF
BLOCK
1
2
VCC
OUT2
IN2
• KEY CONTROL section
IC1401 M65847FP
www
RESET
D/A
.
1
2
3
4
http://www.xiaoyu163.com
11
10
9
8
D/A
LPF2
DO1
MO
20KBIT
SRAM
MI
DO0
4
5
6
7
3
4
5
6
7
VS
NC
GND
OUT1
–
–
A/D
LPF1
HPF
REF
REF
REF
CLOCK
RAM
GENERATOR
x
ao
y
LOGIC
i
8
10
5
6
7
9
http://www.xiaoyu163.com
8
• Power section
IC301 uPC1237HA
OVER LOAD DET
OFFSET DET
AUTORESET
1
2
VREF
BLOCK
Q Q
3
6 7
1 3
8
9
VREF
IN1
–
–
LPF2
MIX
REF
u163
REF
.
11
12
13
14
– 95 –
2 9
9 4
2 8
V
ON
CC
F/F
MUTE
LATCH/
AC OFF
DET
3
4
5
6
7
1 5
0 5
8
2 9
9 4
IC1403 BU4053BC
1
B1
B0
2
OPEN
C1
3
C.COM
4
OPEN
CO
5
m
6
INH
co
7
VEE
OPEN
8
VSS
9 9
V
CC
8
2 8
9 9
VDD
16
B.COM
15
14
A.COM
13
A1
A0
12
11
A
10
B
9
C
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