Specifications

Page 27, paragraph 38. Make the following
changes:
Subparagraph p. The following note is added:
NOTE
If diode CR7901 is type 1N645 (NSN 5961-
00-577-6084), replace it with type 1N4383
(NSN 5961-00-756-6578) (72699); para 1d(5)
(b)).
Subparagraph r. The following is added before
subparagraph (1): Before inserting diode CR7902 in
its mounting hole, apply a thin evenly spread
coating of Dow Corning No. 340 silicon sealing
(heat sink) compound (NSN 8030-00-998-3337) on
the surface of the diode and the mounting hole.
After securing ((1) below), wipe away excess com-
pound. See paragraph 1d(5)(a) for details.
Subparagraph t. Add the following before sub-
paragraph (1): Before replacing resistor R7901 in
position, apply a thin coating, evenly spread, of
Dow Corning No. 340 silicon heat sink compound
on the surface of the resistor and the mounting sur-
face. After securing ((1) below), wipe away excess
compound. See paragraph 1d(5)(a) for details.
Page 28, paragraph 38u. After paragraph 38v.
add the following note.
NOTE
In some equipment (para 1d(5)(d)), there
are 30 leads instead of 26 connected to
switch S7902.
Page 29, paragraph 38x. The following sub-
paragraphs are added after subparagraph (2):
(3) Measure the resistance of resistor R7908; if
its resistance is 475 ohms, remove it and install a
402-ohm resistor (NSN 5905-00-818-5548) (para
id(s)(c)).
(4) On some equipment (para 1d(5)(c)), fixed
resistors R7922 and R7923 are connected, respec-
tively, to potentiometers R7902 and R7919 (fig.
39.2) for positions 2 and 19, respectively, of the
switch.
Figure 15 is superseded by a new figure 15:
7