-41-
IC BLOCK DIAGRAM-2/3
IC, M61500FP
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
5
4
3
2
1
CONT
VSS
OUT-L
TONE-L-L
TONE-H-L
RETURN-L
SEND-L
IN2-L
IN1-L
IN3-L
IN4-L
RECOUT-L
VDD
GND
OUT-R
TONE-L-R
IN2-R
IN1-R
IN3-R
IN4-R
RECOUT-R
MUTE
Mono.SW
VOL
VOL
Treble
boost
Bass
boost
Bass
boost
ATT
ATT
Control logic
IC, LC72131D
AM-IN
FM-IN
VDD
VSS
X-OUT
PD
A-IN
A-OUT
X-IN
CE
DI
MONO/BEA
T
FM/SW
MW/SW
CL
DO
T
-BASE
IF-MUTE
IF-IN
TUNE
www. xiaoyu163. com
QQ 376315150
9
9
2
8
9
4
2
9
8
TEL 13942296513
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299