THERMAL
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.
D6904
40V
LNB_SMAB34
R6900
2.2K
1W
LNB
LNB_OUT
D6904-*1
40V
LNB_SX34
D6903
40V
LNB_SMAB34
A_GND
C6909
10uF
25V
LNB
C6905
10uF
25V
LNB
D6900
LNB
A_GND
C6911
0.22uF
LNB
A_GND
C6907
10uF
25V
LNB
C6908
0.1uF
LNB
+12V
C6906
10uF
25V
LNB
A_GND
A_GND
R6903
39K
1/16W
1%
LNB
L6900
15uH
SP-7850_15
LNB
C6904
0.1uF
50V
LNB
D6903-*1
40V
LNB_SX34
C6912
0.1uF
LNB
C6903
0.01uF
50V
LNB
A_GND
D6901
30V
MBR230LSFT1G
LNB_ONSEMI
LNB_TX
R6904
0
+3.3V_NORMAL
R6902
33
LNB
R6901
33
LNB
I2C_SCL4
D6902
30V
LNB_ONSEMI
I2C_SDA4
IC6900
A8303SESTR-T
LNB
1
VCP
3
NC_1
7
SCL
9
ADD
10
TONECTRL
11
TCAP
12
ISET
13
VREG
14
GND
15
VIN
16
LX
17
GNDLX
18
NC_2
19
NC_3
20
BOOST
5
TDO
8
SDA
6
IRQ
4
TDI
2
LNB
21
[EP]GND
C6901
33pF
LNB
R6907
3.3K
LNB_DMB
C6902
0.22uF
25V
LNB
R6906-*1
0
LNB_ALEGRO
C6910
0.1uF
50V
LNB
R
6
9
0
6
1
0
K
LNB_DMB
D6901-*1
30V
SS23L
LNB_TSC
D6902-*1
30V
SS23L
LNB_TSC
C6900
0.1uF
LNB
69
LNB
2012.03.08
close to VIN pin(#15)
3.5A
PAGE 26
Surge protectioin
2A
3A
DVB-S2 LNB Part Allegro
(Option:LNB)
Ouput trace widths should be sized to conduct at least 2A
close to Boost pin(#1)
Caution!! need isolated GND
Input trace widths should be sized to conduct at least 3A
Max 1.3A
Close to Tuner
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
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