LA1781M(2001) Ver la hoja de datos (PDF) - SANYO -> Panasonic
Número de pieza
componentes Descripción
Fabricante
LA1781M Datasheet PDF : 50 Pages
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Block Diagram
LA1781M
VCC
GND
0.022µF
TO AM STEREO
(IF OUT)
+
10kΩ
+
+
+
+
0.022µF
30Ω
620Ω
0.022µF
1MH
100µF
100µH
30MH
0.022µF
FC18
+
ANTD
0.022µF
510kΩ
RFAGC
240kΩ
48 47 46 45 44 43 42 41 40
49
FM IF IN
50
0.022µF 220Ω
51
100Ω
AM IF IN 52
53
FM IF OUT
ANT
D
OSC
BUFF
OSC
BUFF
DET
IF
AGC
L.C.
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AMVSM
AM SD
FMVSM
FM SD
IF BUFF
300Ω
2kΩ
54
AM SD ADJAM MIX OUT
55
20kΩ FM WB AGCIN
FE IF IN
56
200kΩ
0.022µF
VCC 30Ω
57
62pF
58
MUTE ATT
59
60
MIX +
RF AGC
WB AGC
TWEET
IF AM/FM
REG SW
AM FM
VREF
SEEK
SW
W.B.AGC
RF AGC
SD/ST
IND
KEYED
AGC
22pF 22pF
VCC
30Ω
1000pF
1000pF
FEVCC 61
MIX
AM/FM
0.022µF
62
8pF
63
5pF
64
5pF
ANT
D
BUFF
BUFF
AM
1ST
OSC
NOISE
AMP
AMP
PICAN
INPUT
AGC TRIG GATE
COUNTER
1
2
3
4
5
6
7
8
9
GND 0.1µF
30kΩ
200kΩ
100Ω
0.022µF
GND
18pF
30kΩ
10pF
+
5pF
300pF
30kΩ
+
0.1µF 10kΩ
MUTE DRIVE
39 38 37 36 35 34 33
1µF 1kΩ
Q.DET
MUTE
AMP
HOLE
DET
MUTE
DRIVE
DC-C AFC
DET CLAMP
MRC
SNC
HCC
VCO
STOP
MAIN
HC
AMP
INPUT
FF
19k<90
k
FF
19k<0
PHASE
COMP
VCO
HPF
LPF
PILOT
DET
TRIG
–+
FF
38k<0
P-CAN
FF
SUB MAT
DEC RIX
10 11 12 13 14 15 16
AM
MPX
OSC
+
6800pF 0.01µF
OUT
FM 100kΩ
32
METER 50kΩ
DET OUT
31
AM LEVEL ADJ
+
8200pF AM HC
30
NC-IN
1µF
29 HCC
SNC
28
1µF
27
10kΩ
26
GND
25
AM/FM
S-METER 0.47µF
5V
24
SEEK→AM/FM SD
STOP→FM ST IND.
23
22 5.6kΩ
+
+
21 1µF
0.22µF
*
20
0.047µF 20kΩ
19
SEP.ADJ
18
100kΩ
17
0.01µF
PI.CAN ADJ
*
CSB912JF108
or
KBR912F108
10.26MHz
NC MPX GND
18pF
10µF
10µF
10µF
R
L
10µF
0.22µF
10kΩ 2.2kΩ 1µF
0.01µF 3SK583
10kΩ
10µF
22pF
7.2MHz
0.22µF 100pF 100pF 100pF 100pF
20
19
18
17
16
15
14
13
12
11
VSS PD VDD FM IN AM IN
LC7216M
22pF
CE
CI
CL DO
FM/AM
1
2
3
4
5
6
7
8
9
10
100pF
+B
12V
+
5.6V
+
9.1V
CE
CI
CL DO
RDS
ADC MUTE SD/MONO
ST
R ON
LC867148
A11753
No. 6038-19/50
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