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Page Title:
CHAPTER 3 T E S T S , ADJUSTMENTS, AND CALIBRATION PROCEDURES |
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 T E S T S , ADJUSTMENTS, AND CALIBRATION PROCEDURES
Section I. TESTS AND ADJUSTMENTS
19. General
Observe the following requirements when
All components of the test set are mounted
checking voltages (para 22-26 ) in the test set:
on the rear of the front panel. Components can
be adjusted or replaced without the use of
a. Set the LINE ADJUST control so that
special tools. The following precautions apply
the test set meter indicates LINE TEST when
specifically to this equipment:
pushbutton 1 -- LINE ADJ. is depressed, un-
less otherwise specified.
a. Tag each lead after removing it from a
component. Be careful not to damage other
b. Set the selectors and the controls to
leads by pushing or pulling them out of the
HS5-3460, BIAS to 0, and SHUNT to 0, unless
way.
otherwise specified.
b. Do not allow drops of solder to fall into
c. Set the POWER switch to ON at least.
the test set.
20 minutes before tests are made, except for the
short circuit tests (para 25).
c. Do not disturb the adjustable contacts
on R130 or the settings of variable resistors
unless readjustment is indicated as a result of
a. Connect the multimeter from the cathode
voltage or circuit tests (para 2226) or replace-
to the control grid (pin 6 to pin 5) of the
ment of the part is indicated by the trouble-
OCTAL test socket and adjust the BIAS con-
shooting chart (para 16c).
trol to 22. The multimeter should indicate 3
volts,
0.2 volt.
Required for Tests
b. Perform the following procedure if the
The following charts list the test equipment
voltage i n d i c a t e d by the multimeter is in-
and parts required to test the TV-7(*)/U, the
correct:
associated technical manuals, and the assigned
(1) Adjust clamp A on R130 (TV-7/U or
common names.
TV-7A/U (serial numbers 1 through
1200)) until the correct voltage is
a. Test Equipment.
obtained.
Common name
Technical manual
Test equipment
(2) Adjust clamp C on R130 (TV-7A/U
TM 11-5527
Multimeter
Multimeter
(serial numbers 1201 through 9492),
TS-352/U
TV-7B/U, or TV-7D/U) until the
TM 11-5102
Decade resistor
Resistor, Decade
correct voltage is obtained.
ZM-16/U
c. Make the following bias voltage checks
TM 11-5132
Voltmeter, Meter
volt
after the multimeter indicates 3 volts,
ME-30A/U
for a BIAS control setting of 22:
b. P a r t s .
Federal stock No.
Part
5050-235-2086
Transformer, Variable CN-16/U
5350-498-2146
Transformer (isolation)
5905-117-4194
Resistor, 10,000 ohms
5905-157-5148
Resistor, 12,000 ohms (2 each)
5905 -120-0894
Resistor, 100,000 ohms
5905-202-0030
Resistor, 375,000 ohms
5905-279-2516
Resistor, 510,000 ohms
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