Tektronix TSG 95, Service Manual

Page: 75 / 140

TSG 95 Service Manual
4–1
Performance Verification and Adjustment Procedures
This section consists of a detailed performance verification procedure to verify
the operation of the TSG 95, and an adjustment procedure to return the instru-
ment to in-spec operation.
The order of these procedures has been chosen to minimize changes in equip-
ment setup. Performance parameters may be checked in any order. As some of
the calibration steps are interactive, care must be taken when adjusting individual
parameters to ensure that all others remain within specification.
A performance verification checklist begins on page 4–3.
Performance verification procedure instructions begin on page 4–4.
An adjustment checklist appears on page 4–22.
Adjustment instructions begin on page 4–24.
Required Test Equipment
The following list of equipment represents the minimum required for the Perfor-
mance Verification and Adjustment procedures. While alternate equipment may
be used, it is not recommended. Alternate equipment must meet the minimum
specifications for the listed equipment. Use of inadequate equipment may result
in faulty measurements or calibration.
Table 4–1: Required Test Equipment
Item Information/Requirements Example
ÁÁÁÁÁÁÁÁÁ
Á ÁÁÁÁÁÁÁ Á
Á ÁÁÁÁÁÁÁ Á
Á ÁÁÁÁÁÁÁ Á
ÁÁÁÁÁÁÁÁÁ
PAL/NTSC Video Measure-
ment Set
ÁÁÁÁÁÁÁÁ
Á ÁÁÁÁÁÁ Á
Á ÁÁÁÁÁÁ Á
Á ÁÁÁÁÁÁ Á
ÁÁÁÁÁÁÁÁ
For measuring and displaying
line and field-rate waveforms.
Must be capable of making
differential phase and gain
measurements.
ÁÁÁÁÁÁÁÁÁ
Á ÁÁÁÁÁÁÁ Á
Á ÁÁÁÁÁÁÁ Á
Á ÁÁÁÁÁÁÁ Á
ÁÁÁÁÁÁÁÁÁ
Tektronix VM700A Video Mea-
surement Set, Option 01/11.
Audio Measurement Set Must be capable of measuring
Total Harmonic Distortion. Tektronix VM700A with Audio
Option 40.
ÁÁÁÁÁÁÁÁÁ
Á ÁÁÁÁÁÁÁ Á
ÁÁÁÁÁÁÁÁÁ
Frequency Counter
ÁÁÁÁÁÁÁÁ
Á ÁÁÁÁÁÁ Á
ÁÁÁÁÁÁÁÁ
Must be accurate to within
2.5 Hz out of 5 MHz.
ÁÁÁÁÁÁÁÁÁ
Á ÁÁÁÁÁÁÁ Á
ÁÁÁÁÁÁÁÁÁ
Tektronix DC503A; plugs into
a TM503 power mainframe.
ÁÁÁÁÁÁÁÁÁ
Á ÁÁÁÁÁÁÁ Á
Á ÁÁÁÁÁÁÁ Á
ÁÁÁÁÁÁÁÁÁ
PAL or NTSC Video Signal
Generator ÁÁÁÁÁÁÁÁ
Á ÁÁÁÁÁÁ Á
Á ÁÁÁÁÁÁ Á
ÁÁÁÁÁÁÁÁ
Must be capable of being gen-
locked to the TSG 95 Video
output, and must have a Sub-
carrier output. ÁÁÁÁÁÁÁÁÁ
Á ÁÁÁÁÁÁÁ Á
Á ÁÁÁÁÁÁÁ Á
ÁÁÁÁÁÁÁÁÁ
Tektronix TSG-170A (NTSC),
Tektronix TSG-271 (PAL).