careful not to damage connector
make sure that the captive screws
pins.
on the front panel line up with the
(2) Secure the plug-in assembly use
holes In the gasket and the screw
the four screws (a(2) above).
holes in the ease.
(3) Replace the front panel and chassis
(3) Tighten the eight captive screws.
in the ease (pare 36b).
37. Removal and Replacement of Plug-in
38. Removal and Replacement of Components
Assmblies
on Front Panel and Chassis
a. Removal. Remove each plug-in as-
Remove all plug-in assemblies as de-
sembly as follows:
(1) Remove the front panel and chassis
ing any of the removal procedures given
from the ease (para 36a).
below. Replace all plug-in assemblies M
(2) Remove the four screws that se-
ing the replacement prooedures given
cure the plug-in assembly to the
below.
chassis.
a. Removal of Chassis Bottom Plate
(3) Carefully unplug the plug-in as-
sembly from the female connector
(1) Remove four 440 screwso
in the chassis.
(2) Remove two 6-32 screws.
b. Replacement. Replace each plug-in
(3) Remove two nuts from the studs
assembly as follows:
t h a t secure the chassis bottom
(1) Carefully insert the plug-in as-
plate to the rear of switch S7902.
sembly male connector into the
(4) Remove the chassis bottom plate.
appropriate chassis receptacle; be
Figure 13. Test Set, Radio TS-1777/VRM-1, lower left oblique view.
25