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DVB-S2 LNB Part Allegro
(Option:LNB)
Caution!! need isolated GND
R2701
0
A_GND
Max 1.3A
M13.2V
+13.2V_LNB
LNB
L2701
BLM18PG121SN1D
close to TUNER
LNB_OUT
LNB
LNB
LNB
LNB
C2714
C2701
C2702
D2701
18pF
18pF
33pF
50V
50V
50V
Close to Tuner
Surge protectioin
THE
SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE
SYMBOL MARK OF THE SCHEMETIC.
Copyright © 2015 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
2A
LNB
D2703
SS23L
30V
LNB
LNB
LNB
C2703
C2704
C2705
0.01uF
10uF
10uF
50V
25V
25V
close to Boost pin(#1)
LNB
D2702
SS23L
30V
LNB
LNB
LNB
LNB_SMAB34
LNB_SX34
R2702
C2713
C2712
D2704
D2704-*1
2.2K
0.22uF
0.1uF
40V
40V
1W
25V
50V
A_GND
A_GND
3A
+13.2V_LNB
LNB_SX34
D2705-*1
40V
LNB
L2702
LPH6050T-150M-R
D2705
15uH
LNB_SMAB34
3.5A
40V
LNB
C2708
10uF
LNB
25V
C2706
10uF
25V
A_GND
A_GND
A_GND
LNB
C2709
LNB
0.1uF
C2707
50V
0.1uF
50V
VCP
VIN
1
15
THERMAL
LNB
GND
2
14
21
LNB
NC_1
VREG
3
13
IC2701
TDI
ISET
4
12
A8303SESTR-T(4M)
TDO
TCAP
5
11
LNB
LNB
C2710
R2703
0.1uF
36K
50V
1/16W
1%
R2706
0
LNB
LNB
R2704
R2705
33
33
Input trace widths should be sized to conduct at least 3A
Ouput trace widths should be sized to conduct at least 2A
close to VIN pin(#15)
LNB
C2711
0.22uF
25V
L14_CA_M1A
LNB
2014/05/22
27
LGE Internal Use Only
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