BFGoodrich Avionics Systems,
Inc.
Component Maintenance Manual
P/N 501-1075-()
Tableof
Contents
Page
List of
Revisions............................................................................................................................................
i
List of Effective
Pages.................................................................................................................................iii
Table
of
Contents..........................................................................................................................................
v
List of
Figures.............................................................................................................................................vii
Introduction .................................................................................................................................................
ix
List of
Abbreviations....................................................................................................................................
x
Description and
Operation
1.
General..................................................................................................................................................................1
2.
Purpose Of
Manual...............................................................................................................................................l
3.
Purpose Of
Equipment..........................................................................................................................................l
4.
Physical
Description..............................................................................................................................................1
5. Functional
Description...................................................................................................................,......................2
6.
Specifications........................................................................................................................................................2
7. Model
Variation....................................................................................................................................................3
8 Theory of
Operation..............................................................................................................................................5
Testing and Fault Isolation
1. General..............................................................................................................................................................10 1
2. Tools And Test
Equipment...............................................................................................................................lO1
3. Emergency Power Supply Test
Setup
...............................................................................................................106
4.
Performance
Test
Standards..............................................................................................................................107
5.
Battery
Pack
Test
..............................................................................................................................................108
A.
Initial
Battery
Test
Procedure......................................................................................................................
l
08
B. Battey
Pack
Charging
Procedure
(in
unit)..................................................................................................109
C. Batteg
Pack and Cell
Test
Procedure ......................................................................................................... l 10
6.
PS-823
Storage..................................................................................................................................................112
7.
PS-823A
through H
Periodic Inspection
and
Charging.....................................................................................112
8. Emergency Power Supply Calibration
....................................................................................................,.........113
9.
Emergency Power Supply Performance Test....................................................................................................113
10. Figures,
Schematics
and
Modification Notes....................................................................................................114
Disassembly
I.
General..............................................................................................................................................................301
2.
Cover
Removal.............................................
.... ................. ......
.
..................................... ..............................30 1
3.
Battery
Pack
Removal...............................
. .......
..........
..
. ..
....
.
.
...
..............................................302
4.
Circuit
Card Assembly Removal............................................................ . .
. ...
...........................................303
5. Battery
Test Circuit (if
present) Removal from
Circuit Card Assembly............................ ..............................303
6.
Transistor/Heatsink
Assembly
Removal .............................
....
..
......... .....
.
................................................303
7. Diode Assembly
Removal...........,................ ... .
.... .....
... ....... ..
.
................................................303
8. Fuse
Holder
Removal.............................
. . .. .. ..
.
....
.
.
.......
.... .... ...... .
.............................303
9. Chassis Disassembly
............................ ........ ......
.
. ....... .
...
.....
.
.. .......................
..............................303
Cleaning
1.
General............................. . . . ...
.. .
..
............................401
2. Extemal
Cleaning.........................
...
.
..
..
.
....
.............................40 1
3.
Intemal
Cleaning...........................
.
.
.
.
.
............................401
Table
of Contents
msmljtp202FrontMatterdisk202
24-20-03
Page
v
Revision
A
June
30, 1999
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