Adjustment/Calibration; Adjustment Locations; Instrument Access; Introduction - HP 4935A Operating And Service Manual

Model 4935A
5-1.

INTRODUCTION

This section contains adjustment and calibration information for the HP Model 4935A
Transmission Test Set. Verify all adjustments and calibrations with the tests in Section IV, Performance
Tests.
5-3. SAFETY
I isted warnings and cautions must be followed for your protection and to avoid damage to the
completely power down the instrument, disconnect it from the AC power source. For instruments with the
EQUIPMENT
5-5.
Test equipment needed for adjustments is listed in Table 1-2. Test equipment with equivalent
specifications may be substituted.
5-7.

Instrument Access

top is secured by four screws located on the bottom of the instrument. For the complete procedure refer to the
Mechanical Disassembly Procedure in Section VIII, Service Section.
When the 4935A is in STRY, AC power is still present in the instrument as well as some
removing any assemblies.
5-9. ADJUSTMENT
Adjustment locations are shown on the component locaters at the end of Section VIII.

ADJUSTMENT/CALIBRATION

CONSIDERATIONS
Power switch does not turn off AC power and some DC power circuits.
REQUIRED
(see warning of paragraph 5-4)
LOCATIONS
SECTION V
Adjustment/Calibration
5-1