TM 1-6625-476-30
5-1
CHAPTER 5
CONTROL PANEL ASSEMBLY
Section
Page
Preparation for Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
I
5-1
Description of Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
II
5-2
Test Prompted Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
III
5-4
Test Prompted References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
IV
5-6
Section I. PREPARATION FOR TEST
Subject
Para
Page
Test Preparation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-1
5-1
UUT Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-2
5-1
Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-3
5-1
5-1. TEST PREPARATION.
No special procedures are required to prepare the control panel assembly for test. Refer to the UUT/
TPS/interface device matrix tables in appendix B to determine the correct UUT test program number for
the control panel assembly. Then refer to the UUT test program for a list of cables, test equipment, and
test accessories required to test the control panel assembly.
5-2. UUT DESCRIPTION.
The control panel assembly (figure 5-1) mounts to the upper optical relay column assembly. It contains
the heads out display, switches, and adjustment knobs used to control brightness, contrast, and focus,
and for the selection of video and filters. All controls are operated during the UUT test to determine if
they are faulty or operational. The controls are shown in the illustrations in section IV. All other
components of the control panel assembly that are referenced during the UUT test are shown in the
illustrations in section IV.
5-3. PRECAUTIONS.
Observe the following precautions when testing the control panel assembly.
a. Electric Shock. The control panel assembly operates with a 16,000-volt potential on the cathode ray
tube (CRT) anode and a 4,000-volt focus voltage potential. During yoke alinement, it is possible to
receive a deadly electric shock. Observe all warning notes on the VDT and on the illustrations in section
IV when performing this procedure.
b. Component Damage. Components on the optical signal analyzer (OSA) and on the control pane
assembly can be damaged when you place the control panel assembly into the OSA or remove it.
Observe all cautions on the illustrations in section IV when performing this action. The reticle glass can
be damaged when inserting it into the control panel assembly CRT screen area, and the high voltage
connector cap can be damaged when tightening the adjacent connector. Use caution at all times when
working with equipment.
