Tektronix WFM6100 Opt. MB, Руководство по обслуживанию

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General Maintenance
4- 18
WFM6100, WFM7000, and WFM7100 With Option FP Service Manual
4. If the Diagnostics log reports Audio DSP Self Test–dsp1 , perform the
following procedure:
a.
Check to see if surround display is functioning correctly by doing the
following.
i. Press the CONFIG button.
ii. In the config menu, select Audio Inputs/Outputs > AES A Pairs >
Srnd .
iii. Hook up an AES test tone generator to the AES A IN 1, 2 connector.
b. If there is nothing displayed on the surround display, proceed to step c;
otherwise, replace the Audio board.
c. Probe pins E15 through E22 and pins D16, 17, 18, and C17 on the
Audio board connector J641, and verify that the signals on all pins are
toggling. If any signals are not toggling, replace the Main board.
d. Probe pins C15, C16, and C19 on connector J641 during the boot
sequence, and verify that the signals on the pins toggle. If they do not
toggle, suspect the Main board.
e. Probe pin B22 on the audio board connector J641. If the signal on the
pin does not toggle, replace the Audio board; otherwise replace the Main
board.
f. If all of these steps pass, replace the Audio board.
5.
If the Power-Up Diagnostics screen reports
Audio DSP Self Test – X
, where
X is any other number, replace the Audio board .
To examine the POST results, press the CONFIG button, then select Utilities >
View Diagnostics Log .
Each power up is indicated by a boot time stamp, followed by a list of power on
tests. If any failures are indicted then refer to the action as noted above.
To run the Advanced diagnostics, press the CONFIG button, then select Run
Advanced Diags .
A series of tests will be run; the exact tests will depend on which options are
present in the instrument. There are four distinct parts to the advanced diagnostic
results screen: a top section which shows Frequencies and Versions, a middle
section of Pass/Fail tests, a lower section which shows SDI and Video bus
activity, and, finally, narrow YRGB ramps at the very top and bottom to look for
missing bits on the display interconnect.
Examine Power On Self
Tests (POST) results in
the Diagnostic Log
Run Advanced
Diagnostics