Specifications

O volt dc; then slowly increase it.
Observe the voltage on the TS-
443/U when a sudden drop in the
voltage measured by the ME-26B/
U indicates G R E E N indicator
DS7902 has switched on and a
sudden rise in voltage indicates
GREEN indicator DS7902 has
switched off. The GREEN indicator
should switch on when the ME-
443/U indicates 10.5 volts and
switch off at 13.0 volts.
(11) If necessary, readjust potentiom-
eter R7803 and R7801 to assure the
conditions given in (10), above.
d. D
C Circuits (fig. 33). Connect the
equipment as shown in figure 24.
(1) Reduce the 721A output to 0 volt dc.
(2) Turn the TS-1777/VRM-l selector
switch S7902 to position A.
(3) Raise the 721A output to 14.2 volts
dc as indicated by the TS-443/U.
(4) Measure the dc voltage at connector
P7801-H with the ME-26B/U;
adjust potentiometer R7501 on
A7500 for an indication of approxi-
mately +2 volts dc.
(5) Carefully adjust potentiometer
R7501 until GREEN indicator
DS7902 switches on indicated by a
sudden drop in voltage measured at
P7801-H.
(6) Reduce the 721A output to 0 volt dc;
then slowly increase it. Observe
, the voltage indication on the TS-
443/U when a sudden drop in mon-
itor voltage measured by the ME-
26 B/U occurs,
which indicates
that GREEN indicator DS7902 has
switched on. The indication on the
TS-443/U should be 14.2 volts.
(7) If necessary, readjust R7501 to
assure the condition given in (6)
above.
e. Audio Circuits (fig. 22 and 33).
(1) Connect the equipment as shown in
figure 22.
(a) Turn the TS-1777/VRM-l se-
lector switch to position 10.
(b) Connect the TS-382F/U and the
ME-20 B/U to the TS-1777/
VRM-1 test probe.
(c) Make sure the ground lead of the
probe is connected to the ground
of the TS-382F/U.
(d) Adjust the TS-382 F/U for an out-
put of 225 millivolts (rev) at 1,000
cps as indicated on the ME-
30B/U.
(2) Adjust potentiometer R7406 for an
indication of approximately +2 volts
dc on the ME-26 B/U (connected to
P7801-H).
(3) Carefully adjust potentiometer
R7406 until a sudden drop in volt-
age on the ME-26B/U indicates
GREEN indicator D67902 has
switched on.
(4) Reduce the TS-382F/U output to
0 mv, then slowly increase it; ob-
serve the voltage on the ME-30B/U;
a sudden drop in voltage measured
by the ME-26B/U indicates that
GREEN indicator DS7902 has
switched on, The indication on the
ME-30B/U should be 225 mv.
(5) If necessary readjust potentiom-
eter R7406 to assure the condition
given in (4) above.
f. Circuits 5.65-mc.
(1) Remove the TS-382F/U and the
ME-30B/U from the TS-1777/
VRM-l test probe.
(2) Turn the TS-1777/VRM-l selector
switch to position 15.
(3) Connect the Hf Signal Generator
606A and the Rf Millivoltmeter
411A to the TS-1777/VRM-l test
probe. Make sure the ground lead
of the test probe is connected to
the ground of the 606A.
(4) Adjust the 606A for an output of
5.65 mc at 220 mv as indicated on
the 411A.
(5) Adjust potentiometer R7708 for an
indication of approximately +2 volts
dc on the ME-26 B/U (connected to
P7801-H).
(6) Carefully adjust potentiometer
R7708 until a sudden drop in the
voltage measured by the ME-26 B/U
indicates that GREEN indicator
DS7902 has switched on.
(7) Reduce the 606A output to 0 mv;
then slowly increase it. Observe
the indication on the 411A; a sudden
35