COMPONENT MAINTENANCE MANUAL
IN 1502H RADAR INDICATOR
TM109102
5-2
May/01
I.
Transformers
Inspect case for damage and for signs of excessive heating. Check for loose, broken or
corroded terminal connections.
J. Transistors and Integrated Circuits
Inspect for damage to body or case and for secure attachment to socket, if applicable.
K. Terminal Connections, Soldered
(1) Inspect for cold soldering or rosin joints. Bad joints can be recognized by a dull,
porous appearance.
(2) Check for excessive solder, insufficient solder, or solder splashes resulting from a
previous repair.
(3) Check for corrosion at the terminal connections.
L. Printed Circuit Boards
Inspect for loose, broken or corroded terminal connections and damage such as cracks,
burns or charred track. Also, check for insufficient solder, proper binding, fungus, mold or
other deposits that should be repaired.
M. Cathode-Ray Tube
Inspect tube face for burned spots or other discrepancies which could cause deterioration
of the display. Check tube for secure mounting.
N. CRT Filter
Check CRT filter for scratches or other blemishes which could cause deterioration of the
display.
3. Cleaning
Perform a routine cleaning any time the radar indicator is removed from the aircraft.
A. Recommended Cleaning Agents
Table 5-1 lists the recommended cleaning agents to be used during overhaul of the
IN 1502H.
Recommended Cleaning Agents
Table 5-1
TYPE
USED TO CLEAN
Denatured Alcohol
Isopropyl Alcohol
Glass Cleaner
(Windex or equivalent)
Exterior surfaces and interior surfaces.
Printed circuit boards.
Display.
The document reference is online, please check the correspondence between the online documentation and the printed version.
