THERMAL

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.

LNB 27 13

2013.1.14

A_GND
LNB_TX
C2709
0.1uF
50V
C2703
0.01uF
50V
C2711 0.22uF
C2706
10uF
25V
C2708
10uF
25V
LNB_OUT
D2703
30V
A_GND
L2701
BLM18PG121SN1D
C2702
33pF
R2705 33
C2705
10uF
25V
C2710
0.1uF
DEMOD_SCL
C2701
18pF
R2701
0
D2705-*1
40V
(OPT)LNB_SX34
C2704
10uF
25V
D2702
30V
MBR230LSFT1G
DEMOD_SDA
L2702
15uH
SP-7850_15
A_GND
R2702
2.2K
1W
+12V_LNB
+12V_LNB
D2704
40V
LNB_SMAB34
SMAB34
R2704 33
C2712
0.1uF
50V
C2714
18pF
A_GND
+12V_Normal
A_GND
D2701
D2704-*1
40V
(OPT)LNB_SX34
D2705
40V
LNB_SMAB34
SMAB34
C2707 0.1uF
A_GND
C2713
0.22uF
25V
R2703
36K
1/16W
1%
R2706
0
IC2701
A8303SESTR-T
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

NC4_S7LRM

Max 1.3A
Surge protectioin
Ouput trace widths should be sized to conduct at least 2A
close to Boost pin(#1)
close to TUNER
close to VIN pin(#15)

2A

Close to Tuner
Input trace widths should be sized to conduct at least 3A
3.5A

3A

Caution!! need isolated GND
Max 1.3A

DVB-S2 LNB Part Allegro

EAX65303801

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Only for training and service purposes
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