Section IV. TROUBLESHOOTING - TM-11-5820-489-200019

TM 11-5820-489-20

TO 31R4-2GRA6-32

Section IV. TROUBLESHOOTING

2-8. GENERAL

Troubleshooting at the Organizational Maintenance level requires that trouble be isolated and

traced to a faulty component as quickly as possible. It must be decided if the trouble can be solv-

ed at the Organizational Maintenance level or requires a higher level of maintenance. Repairs by

Organizational Maintenance are limited by the tools, test equipment, and replacement parts

allocated to that level.

When the equipment does not operate properly, inspect it for the following visible trouble

before going to the Troubleshooting Table.

2-9. VISUAL INSPECTION

A. Local Control.

Broken or defective line binding posts.

Loose or corroded connections to line binding posts.

Broken, dirty, corroded, or loose AUDIO connector on unit panel.

Dirty or damaged connector cables.

Broken call light or damaged dimmer control.

Improperly installed or burned out call light.

Leaky or improperly installed batteries.

Defective or improperly Installed control relays 0-1, 0-2, and 0-3. The plug-in type relays are

mounted on a shelf which is protected by a cover. Remove the two screws which hold the

cover in place and remove the cover. Relay 0-1 is nearest to the panel and relay 0-3 is far-

thest away from the panel. Do not rock or jiggle the relay if difficulty is encountered. This

might damage the relay pins on the relay socket. Pry up gently with a screwdriver, if

necessary. Inspect pins; make sure they are not broken or damaged.

q Pinched wires.

B. Remote Control.

Broken or defective line binding posts,

Loose or corroded connections to line binding posts.

Broken, dirty, corroded, or loose AUDIO connector on unit panel.

Dirty or damaged connector cables.

Improperly installed or burned out call light.

Leaky or improperly installed batteries.

Pinched wires.

2-9