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Performance Check and Calibration Procedures
1–18
TPG20 Service
where ESC is the escape key (1B hex), n is a number from 1 to 9. (
ASCII
)
and <CR> is carriage return.
Ensure that the unit recalls the correct memory settings. If a memory is
successfully recalled, then the unit echoes the following data, if not, no data
is returned.
Mn OK<CR>
where n is the memory recalled.
24. External PC load.
Connect the PC data port to an IBM compatible PC using a 25 pin connector.
Ensure that the unit is in its normal state (ie. not in any adjustment mode).
From the PC, transfer a PAL/D2 full frame compressed pattern into the unit.
The front panel display should indicate the status of the transfer. When
complete, the loaded pattern should appear on the outputs and its title
appears on the display. Check that no errors are received after the pattern has
loaded (if so, file size does not match). Examine the picture loaded carefully
and check that no pixels are missing and that all color areas appear correct.
Check cross pulse area for missing or extra pixels.
NOTE. Using TPG20 test data disk, select drive – type the following command:
TRANSFER GIRL–N.cps 1
Check monitor for correct download of picture data.
END OF PERFORMANCE CHECK PROCEDURE