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DVB-S2 LNB Part Allegro
(Option:LNB)
D2301
LNB
SMAB34
2A
40V
C2307
C2302
0.01uF
1uF
50V
50V
LNB
close to Boost pin(#1)
D2302
US1M(suzhou)
LNB_OUT
1000V
LNB
C2301
0.22uF
25V
A_GND
LNB_TX
THE
SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE
SYMBOL MARK OF THE SCHEMETIC.
Copyright © 2011 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
D2304
SMAB34
3A
40V
LNB
+12V_LNB
C2324
C2305
68uF
68uF
35V
35V
LNB
LNB
LNB
LNB
L2301
33UH
SP-7850_33
2.4A
DCDC_GND
DCDC_GND
D2303
C2303
SMAB34
0.1uF
40V
50V
LNB
LNB
A_GND
A_GND
BOOST
1
21
THERMAL
C2304 0.1uF
VCP
2
20
29
LNB
C2306
22000pF
TCAP
3
19
IC2301
LNB
NC_1
4
18
A8290SETTR-T
TDO
LNB
5
17
A_GND
EXTM
6
16
TDI
7
15
A_GND
C2312
C2311
0.1uF
10uF
50V
25V
close to VIN pin(#25)
LNB
LNB
DCDC_GND
A_GND
NC_8
NC_7
BFC
NC_6
NC_5
A_GND
R2313
NC_4
0
LNB
NC_3
+3.3V_Normal
DCDC_GND
A_GND
R2304
Max 1.3A
4.7K
LNB
+12V
+12V_LNB
L2302
BLM18PG121SN1D
LNB
DCDC_GND and A_GND are connected
DCDC_GND and A_GND are connected in pin#27
PCB_GND and A_GND are connected
Input trace widths should be sized to conduct at least 3A
Ouput trace widths should be sized to conduct at least 2A
R2314
0
LNB
A_GND
BCM35230
LNB
2010.11.02
23
57
LGE Internal Use Only
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