TM 11-6625-291-14/TO 33A1-7-23-1
Section IV CALIBRATION
Page
Para
Subject
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-25. OVERVIEW.
The output meter is calibrated during manufacture. Recalibrate when required or when a resistor in the
calibration circuit has been replaced. For wiring diagrams and schematics, see pages 6-52 to 6-59.
6-26. CALIBRATION.
This task covers:
Calibration
INITIAL SETUP
Equipment Condition
Tools
Output meter on workbench
Tool Kit, Electronic Equipment
TK-105/G
Test Equipment
Materials/Parts
Audio Oscillator TS-382A/U
None
Voltmeter ME-30A/U
Personnel Required
One technician
ACTION
REMARKS
ITEM
LOCATION
CALIBRATION
NOTE
See paragraph 6-7 for removal of chassis from case.
Position chassis so that meter faces the
Meter (1) and vari-
1 . Chassis
operator and variable resistor R3 faces
able resistor R3 (2)
away from the operator.
Connect.
Audio oscillator (3)
2.
and binding posts (4)
Set to X10 X100 (1,000 ohms).
impedance control
3.
knob (5)
6-46
