Specifications

NOTE
New plates should be requisitioned for
those tat sets that do not have plates
described in (4) above
Paragraph 2 f, line 9. Change “22 volts” to:
21.5 volts.
Page 5, figure 2. Make the following changes:
Change the resistance
value of “R7612” and
“R7613” to: 51 (ohms). Add the following:
NOTE
In some units, the resistance value of
R7612 is 75 ohms and R7613 is 33 ohms.
Page 11, figure 8. Make the following changes.
Change the resistance values of “R7818" to
“51 (ohms) “ and “R7819” to “8.2K"
Add the following:
NOTE
In some units, the resistance value of
R7818 is lK and R7819 is lK.
Page 12, paragraph 13 b, line 4. Delete "TP3002"
Page 16, add paragraph 27.1 and figure 10.1
after
27.1.
paragraph 27.
Selector Switch Position 1.
(fig. 10.1)
When selector switch is in position 19, the +13.5
(±1)-volt dc output of module A2100 to relay
K3001 in assembly A3000 can be tested. The
tested voltage is connected through rf choke
L7301 and voltage dropping resistors R7919 and
R7920 to the voltage supply limits sensing circuit.
The output of this circuit is applied to the Schmitt
trigger circuit. If the voltage is within limits,
GREEN indicator lamp DS7092 lights. If the volt-
age is not within limits, insufficient voltage will
be applied to the Schmitt trigger circuit, and RED
indicator lamp DS7901 lights. The operating volt-
age for the Schmitt trigger is supplied from the
+16-volt dc line.
Figure 10.1. Test in selector switch position 19, simplified schematic diagram
Page 19, paragraph 33 d. Add the following
replace the affected
note below the heading:
parts for assemblies
NOTE
If a component is detected as defec-
Page 23. Delete figure
tive in assemblies A7300 through A7800,
figure 11.
assembly. (Repair
are not provided.)
11 and substitute new
2