User Manual

P B L Tunnels Loc 2 Units 1 & 2 + 800MHz BDA
Maintenance Handbook
H/book Number:-60-056100HBKM
Issue No:-1
Date:-13/02/2003
Page:-50 of 50
5.1.5.4 Drg. No. 12-004271, 10W PA Circuit Diagram
1A
12-004271
POWER AMPLIFIER 450MHz 10W CLASS A
CIRCUIT DIAGRAM
-
17/5/00
DBS
BYDATEDESCRIPTIONNo
ISSUE
1 2
3
4
5
6
7
8 9
A
B C D E F
1 2 3 4 5 6 7 8 9
A
B C D
E
F
PRODUCTION ISSUE
DBS
17/5/00
+
RF INPUT
+
+
+
+
RF OUTPUT
ALARM REF
ALARM DET.1
ALARM DET.2
R1
1R2
1KR
R2
R3
470R
REG.1
ADJ OUT
IN
ADJ
REG.2
OUT
IN
C3
1uF
1nF
C7
1uF
C9
220pF
C8
L1 L3 L4 L5
FB4FB3FB2FB1
L2
47pF
C5
47pF
C6
1-14pF
C4
1-14pF
C2
C11
1-14pF
TR1
TP5012
PTB20031
TR2
C13
1-14pF
C15
1-14pF 1-14pF
C25 C26
1-14pF
C22
1-14pF
18pF
C28
27pF
C16
C17
27pF
C29
18pF
56pF
C12
4.7uF
C14
R5
R68
C19
56pF 1uF
C18
C20 1uF 56pF
C21
1000pF
C30
1KR
R4
1uH
C24
15pF
C23
15pF
56pF
C27
C1
56pF
LM337T LM337T
CONDUCTORS SHOWN THUS: ARE 50 ohm STRIPLINES REFER TO 12-004211 FOR COMPONENT POSITIONS EXCEPT FOR THOSE MARKED (THEY ARE SPECIFIED ON 12-004205)
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Fax [phone]
Tel: [phone]
Aerial Facilities Limited
THIS IS A PROPRIETARY DESIGN OF AERIAL FACILITIES LTD. REPRODUCTION OR USE OF THIS DESIGN BY OTHERS IS PERMISSIBLE ONLY IF EXPRESSLY AUTHORISED IN WRITING BY AERIAL FACILITIES LTD.
NO DECIMAL PLACE ± 1mm ONE DECIMAL PLACE ± 0.3mm TWO DECIMAL PLACES ± 0.1mm
ALL DIMENSIONS ARE IN mm
UNLESS OTHERWISE STATED
CHKD
DRAWN
APPD DATE
TOLERANCES SCALE
England
CUSTOMER DRAWING.No
TITLE
3 A
*
1nF
C31
2OCTQ45
D1
+24v
GB BB