Specifications

(3)
make sure that the captive screws
on the front panel line up with the
holes In the gasket and the screw
holes in the ease.
Tighten the eight captive screws.
37. Removal and Replacement of Plug-in
Assmblies
(fig. 12 and 13)
a. Removal. Remove each plug-in as-
sembly as follows:
(1)
(2)
(3)
Remove the front panel and chassis
from the ease (para 36a).
Remove the four screws that se-
cure the plug-in assembly to the
chassis.
Carefully unplug the plug-in as-
sembly from the female connector
in the chassis.
b. Replacement.
Replace each plug-in
assembly as follows:
(1) Carefully insert the plug-in as-
sembly male connector into the
appropriate chassis receptacle; be
(2)
(3)
careful not to damage connector
pins.
Secure the plug-in assembly use
the four screws (a(2) above).
Replace the front panel and chassis
in the ease (pare 36b).
38. Removal and Replacement of Components
on Front Panel and Chassis
Remove all plug-in assemblies as de-
scribed in paragraph 37a before perform-
ing any of the removal procedures given
below. Replace all plug-in assemblies
M
described in paragraph 37b after perform-
ing the replacement prooedures given
below.
a. Removal of Chassis Bottom Plate
(fig. 12 and 14).
(1) Remove four 440 screws
o
(2) Remove two 6-32 screws.
(3) Remove two nuts from the studs
that secure the chassis bottom
plate to the rear of switch S7902.
(4) Remove the chassis bottom plate.
Figure 13. Test Set, Radio TS-1777/VRM-1, lower left oblique view.
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