参数资料
型号: LA71750EM
元件分类: 消费家电
英文描述: SPECIALTY CONSUMER CIRCUIT, PQFP100
封装: 14 X 20 MM, QFP-100
文件页数: 6/46页
文件大小: 898K
代理商: LA71750EM
LA71750EM
No.7952-14/46
Block Diagram and Test Circuits
+
1k
Ω
1k
Ω
0.01
μF
47
μF
0.047
μF
0.1
μF
F
47
μF
47
μF
0.01
μF
10
μF
0.033
μF
0.01
μF
F
10
μF
2k
Ω
10k
Ω
33
μF
22
μF
0.1
μF
0.1
μF
4.7
μF
2.2
Ω
0.033
μF
0.022
μF
22k
Ω
0.01
μF
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
20
21
22
23
24
25
26
27
28
29
30
79
80
50
49
48
47
46
45
43
42
41
40
39
38
37
36
35
34
33
32
31
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
78
77
76
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
58
57
55
53
52
51
2SC3331
2SA1318
R/P
560
Ω
100
μH
AE
FE
47
Ω
+
F
+
81
COMP-OUT
ENVDET
REC-FM
AGC2-REF
REC-FM
AGC2-FIL
T
PB:ON
REC:ON
PB:ON
EP-H
EP-L
REC-EP1
REC-EP2
75
Ω
0.47k
Ω
RF-IN
AD-MUTE
HA-SW
4.7k
Ω
51k
Ω
2.7k
Ω
10
Ω
75
Ω
75
Ω
470
Ω
10
Ω
2.2k
Ω
0.01
μF
0.01
μF
27k
Ω
1.2k
Ω
22
μF
+
F
F
12k
Ω
330k
Ω
10k
Ω
12k
Ω
3.3k
Ω
47k
Ω
8.2k
Ω
5.6k
Ω
PBEQ-OUTMNI
10k
Ω
18k
Ω
V SYNC OUT
C SYNC OUT
CLOCK
DATA
Video OUT 1
To OSD
HA:RECFM-IN
EQ:RECFM-OUT
HA:PBFM-OUT
EQ:PBFM-IN
Video OUT 3
To SCART2
Video OUT 2
To SCART1
Video
IN2/SCAR
T1(TV)
Video IN 3
SCART2(DEC)
+
0.033
μF
10
μF
51
Ω
+
75
Ω
2.7k
Ω
Video
IN1/TVNER
44
N.C
3.9k
Ω
75
Ω
75
Ω
75
Ω
2.2k
Ω
2.2k
Ω
100
Ω
75
Ω
75
Ω
8200pF
1200pF
2SC331
+
180
Ω
Audio IN2
Audio IN1
Audio OUT
Audio IN3
0.047
μF
100
μH
0.1
μF
0.047
μF
0.022
μF
0.033
μF
Video IN4/FRONT
VPSOUT (1Vp-p)
CHARA. INS
Video IN5
OSD (PB)
0.033
μF
0.033
μF
+
0.033
μF
0.01
μF
+
0.47
μF
+
0.47
μF
+
10
μF
1000pF
470
μF
10k
Ω
10k
Ω
+
51
Ω
4.7k
Ω
100
Ω
6.8k
Ω
2.7k
Ω 130pF
1.2k
Ω
51k
Ω
220pF
+
1
μF
470
μF
0.047
μF
1
μF
1
μF
1.2k
Ω
+
1
μF
REC C OUT
PB C OUT
0.01
μF
19
+
4.43M PA
L-GBI
PA
L-MN
3.58 NTSC
LP/EP
PB/EE
A.GND
SP
REC
Vr
ef
REC:LP/EP PB:EP
100
Ω
PB/EE
R/P-EQ SEP
ARA
TE
(REC)
SP/LP
R/P-EQ COMMON
R/P-EQ
SEP
ARA
TE
PB
REC/EE
CHROMA
A-V
CC
DET
C-GND
C
-V
CC
AUDIO HD-SW CTL
PB-FM
IN
ACC DET
P/S
AFC FIL
T
2FSC-OUT
VCO
RD
PB
H
OUT
CCD GND
CCD V
CC
FBC2 DET
VCA DET
DELA
YED
SIGNAL
NT/NT
CCD
LC89984/85
-15V
+15V
*Mylar
M/M
Fsc CLK IN
C-MAIN
REC BGA PB BGA-A PB BGA-B
C-DELA
Y
PB
R/P
A
P
R
PHASE COMPEN Q-CTL
PHASE COMPEN FO-CTL HA
GND
FM AGC
C-ROTIN
10k
Ω
18k
Ω
WHEN
SQPB
EQ
THROUGH
REC
FM
AGC2 REF REC
FM
AGC2 FIL
T
P
R
HA
PRE
GND
H.A. V CC
Y
C
FBC1
FBC1 DET
Y-
V CC
Y-
G
N
D
AGC
BYP
ASS
AGC
NORMAL
Y
C
PB_Y
PB_C
AGC TC2
FBC3 DET
AL
W
AYS
5V
2 1
59
56
54
R
PR
FM AGC
REC FM-EQ
FM MOD
W/D CLIP
NL
EMPHA
PHASE COMPEN
DOUBLE
LIM
PB_FM
EQ.
DET
AIL
ENH
MAIN DE-EM
Y-
DELA
Y
SUB LPF
FM DEM
PR
ENV DET
P
R
H
L
REC
FM
AGC2
+
H
L
AUT
O
BIAS
REC AMP
EQ AMP
INVER
TER
AT
T
LPF
Vr
ef
2.3V
LINE AMP
MUTE
ALC DET
12
3
P
R
P
R
VCO
SLD
CNC
NAP BPF
NAP
KIL B.D.
REC APC
PB APC
REC AFC
KIL DET
SYNC DET
VXO2
VXO1
SECAM
DET
PA
LM
DET
P
R
P
R
1H/2H D.L
Y_DELA
Y
INV
D.L EQ
COMB AMP
BPF1
ACC
ACC DET
CCD LPF
FBC2
4 3 2 1
SW1
Mute
5 4 3
SW2
5
SW3
REG 4V
VIDEO AGC
CLP5
CLP4
60B AMP 60B AMP
VCA
AGC TC1
CAR BAL
CLP3
CLP2
CLP1
PR
P
R
P
R
SYNC SEP
6DB AMP
Chara INS.
1/2
FBC3
NL
DeEM
NC1/2
PIC CTL
Y/C MIX
BPF2
BPF3
Sub CONV
SERIAL
DECODER
Y.
N
.R
Y-
DELA
Y
Y-
LP
F
C-LPF
KIL
B-UP AMP
Main CONV
ALC
F-TEST
1
2
3
4
8
7
6
5
0.01
μF
0.01
μF
0.01
μF
33k
Ω
18k
Ω
F
+
F
10
μF
10
μF
3.9
μH
8.2
μH
8.2
μH
8.2
μH
8.2
μH
100
μH
0.01
μF
0.01
μF
+
PB-VIDEO-IN
HA-RECMN-IN
F
3.9
μH
+
2.7k
Ω
27k
Ω
18k
Ω
10
μF
+
PB:ON
SP-H
SP-L
REC-SP1
REC:ON
REC-SP2
2SD734
2k
Ω
20k
Ω 30kΩ
0.1
μF
10
Ω
75
Ω
75
Ω
470
Ω
10
Ω
0.01
μF
F
10
μF
10
μF
3.9
μH
+
F
3.9
μH
+
100
μH
100
μH
100
μH
100
μH
100
μH
100
μH
100
μH
100
μH
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