Tektronix WVR4000, Руководство по обслуживанию

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Maintenance
Getting Started To properly test an instrument you must have appropriate signal sources.
Depending on what portion of the instrument you are testing, this might include
Serial Digital Video or Digital Audio. In some cases, you may also need receivers
or an oscilloscope to check outputs.
These instruments consist of several boards and major components. The objective
of this troubleshooting guide is to isolate a problem to a module or board so it
can be replaced. This guide does not provide information to troubleshoot to the
component level.
Standard boards and modules:
Main board
Ref I/O board
SDI I/O board
DVI I/O board
Backplane board
Front panel board
Table 3: Required test equipment
Test equipment Requirements Example
1080i 59.94 HD signals required for
WVR5000:
100% color bars
10 bit shallow ramp
SDI Matrix Split Field Pathological
Signal
100% sweep
Tektronix TG2000 with HDVG1 module
for TG2000 (Embedded audio needed) SDI serial digital video test generator with
embedded audio. Varies with instrument
model: WVR4000 (need SD SDI source),
WVR5000 (need HD SDI source).
525/270 SD signals required for
WVR4000:
100% color bars
10 bit shallow ramp
SDI Matrix Pathological Signal
H 100% sweep
DVG1 with option S1 module for TG2000
(Embedded audio needed)
AES Audio Signal Generator 48 kHz, 24 bit word length signals Rohde & Schwarz UPL06, Tektronix
AM700 and AM70.
Voltmeter Fluke 87 or equivalent
DC Ammeter with Clamp on pickup 20 Amp DC capable Fluke 336 or equivalent
Oscilloscope Video trigger capability Tektronix TDS3000B Series
WVR4000 and WVR5000 Service Manual 13