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DVB-S2 LNB Part Allegro
(Option:LNB)
LNB_OUT
C6900
C6901
0.1uF
33pF
LNB
LNB
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
2014 LG Electronics Inc. All rights reserved.
Only for training and service purposes
2A
D6902
LNB_TSC
LNB_ONSEMI
D6902-*1
SS23L
30V
30V
C6903
C6905
0.01uF
10uF
50V
25V
LNB
LNB
close to Boost pin(#1)
30V
SS23L
D6901-*1
LNB_TSC
D6901
MBR230LSFT1G
30V
D6903
C6904
LNB_ONSEMI
LNB_SMAB34
0.1uF
R6900
50V
40V
LNB
2.2K
D6900
1W
C6902
LNB
LNB
0.22uF
LNB
D6903-*1
25V
LNB_SX34
40V
A_GND
A_GND
3A
+12V
D6904-*1
Max 1.3A
40V
LNB_SX34
3.5A
D6904
40V
LNB_SMAB34
C6906
C6907
10uF
10uF
25V
25V
LNB
LNB
A_GND
A_GND
A_GND
VCP
VIN
1
15
THERMAL
LNB
GND
2
21
14
NC_1
VREG
3
13
IC6900
TDI
ISET
A8303SESTR-T
4
12
LNB
TDO
TCAP
5
11
+3.3V_NORMAL
LNB_ALEGRO
R6906-*1
0
Input trace widths should be sized to conduct at least 3A
Ouput trace widths should be sized to conduct at least 2A
C6909
10uF
25V
LNB
close to VIN pin(#15)
Caution!! need isolated GND
R6904
0
C6910
0.1uF
50V
LNB
A_GND
LNB
R6903
39K
1/16W
C6912
1%
LNB
0.1uF
xxLY960H-ZA
LNB
PAGE 26
2014.06.23
69
LGE Internal Use Only
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