Handbook

800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM
Issue No:-1
Date:-21/10/2003
Page:-
37 of 52
5.7.4 Drg. Nō. 12-002270, 3 Stage Alarm Board Circuit Diagram
3 STAGE AMPLIFIER ALARM BO ARD CIRCUIT DIAG RAM
12-002270
1
N.T .S
M R B 11/ 8/ 93
BYDATEDESCRIP TIONNo
ISSUE
1234 5
6
78 9
10 11 12
13
14
15
16
17 18
A B C D E F G H
I
J K L M
A B C D E F G H
I
J K L
1 2 3 4 5 6 7 8 9 101112 13 1415 16
17
18
M
UNLESS OTHERWISE STATED ALL DIMENSIONS ARE IN mm
DRAWN CHKD
CUSTOMER DRA WING No
PERMISSIBLE ONLY IF EXPRESSLY AUTHORISED IN WRITING THIS IS A PROPRIETARY DESIGN OF AERIAL FACILITIES LTD.
NO DECIMAL PLACE ± 1mm TWO DECIMAL PLACES ± 0.1mm ONE DECIMAL PLACE ± 0. 3mm
BY AERIAL FACILITIES LTD. REPRODUCTION OR USE OF THIS DESIGN BY OTHERS IS
APPD DATE
TOLE RANCES SCA LE
Tel : [phone]
Fax : [phone] Ae ria l Fa cilitie s L imite d
England
TI TLE
1 A
+
- IC1
+ -
IC1
+ - IC1 + - IC1
CONN11
TTL ALARM
CONN
+5v TTL I N 12
CONN
0V
15
CONN
ALARM 0v
14
CONN
O/C ALARM 13
7
+8v TO +30v
CONN
1CONN
CONN2
CONN3
CONN4
CONN5
CONN6
MONITOR 1
INPUT
HI LOW HI
MONITOR 2
INPUT
LO W HI
MON I TOR 3
INPUT
LO W
9CONN
CONN10 CONN8
CONTACTS
ALARM
R1 1K 8
+
- IC3
5 6
7
R2 120R
R3 120R R4 3K 6
R6 100K R5 100K
R7 100K
R9 1K
2 3
1
+ - IC3
4 11
R11 1K
100K R15
1K R17
100K R23
100K R22
1K R19
100K R14
100K
R13
100K
R21
R25 1K
R27 1K
R37 2K 4
R39 560R
R26
270K
270K
R18
R24
100K
R28
270K
R20
270K
R16
100K
R10
270K
R8
100K
R12
270K
R42
4K 7
R29
4K 7
R35
1K
R40
2K 2
R41 22K
R38
1K
R36
3K
2K 2 R30
4K 7 R32
4K 7 R34 10K R33
10K R31
TR 3 BCW71BCW71
TR 2
BCW71 TR 1
6 5
7
+ -
IC2
10 9
8
+ -
IC3
3 2
4 11
1
12 13
14
+ -
IC3
+ - IC2
12 13
14
10 9
8
3 2
4
1
11
+
- IC2
+
- IC2
5 6
7
10 9
8
12 13
14
D1
1. 23v SR12D
+
C1 1uF
C2 100n
1u C7
100n C3
100n
C4
1. 0 C8
3v 3
D9
TR 6
FZT7 5 1
TR 4
BCW71 BCW71
TR 4
100n C6
LK 2
D7 D6
LK 1
D4
D5
D2
D3
D8
LE D 1
REL
-
RL1
+
OP AMP
6
7
RL1/2
8
+7. 5v
+7. 5v
2
+7. 5v +7. 5 v VCC VCC
0v 0v
C R 0508 14/ 1 / 94 M R B
IC1 , IC2 & IC3 = LM324AM ALL DIODES = LL4148 UNLESS MARKED OTHERWISE
4
RL2/ 2
3
2
NOT USED
VCC
PRODUCTION ISSUE 11/9/93 MRB PRODUCTION ISSUE 29/8/00 MNR
2
2A
0v
RB RB