Tektronix WFM6120 Technical Reference

Incoming Inspection
14. Verify the sine
waves are uniform and do not have steps. Also verify the
amplitude is 700 mV. Check that there are no EDH errors (SD) or CRC errors
(HD) on the second waveform monitor.
15. Disconnect the signal from the SDI A input and reconnect it to the SDI B
input and then press the Input B button.
16. Press the CONFIG button and then select Outputs > SDI Output > Loopout
B.
17. Repeat steps 5 through 14.
18. Record Pass or Fail for SDI Bit Integrity in the test record.
19. Disconnect the second waveform monitor.
External Reference
1. Restore the Factory Preset. (See page 60, Restore the Factory Presets.)
2. Connect a 525/270 10-bit shallow ramp signal from a DVG1 module to the
SDI A input of the instrument under test.
3. Apply an NTSC signal to the External Reference input from the Analog
Signal Generator. Install a termination on the loopthrough.
4. Press EXT REF on the instrument front panel.
5. The status bar in the lower left-hand corner of the display should display
Ref: NTSC.
6. Press the Display Select 4 button, then the WFM button, and then the
SWEEP button.
7. Verify that both WFM tiles are stable.
8. Record Pass or Fail for NTSC Lock in the test record.
9. Remove the NTSC signal from the reference input.
10. Both WFM tiles should “unlock” and scroll.
11. The status bar in the lower left-hand corner of the display should display
Ref: Ext. Missing.
12. Record Pass or Fail for Ref Missing in the test record.
Eye (Options EYE and
PHY)
1. Restore the Factory Preset. (See page 60, Restore the Factory Presets.)
2. Connect a 525/270 color bars signal from a DVG1 module to the SDI A input
of the instrument under test.
3. Press the EYE button.
4. Check for the presence of a stable eye diagram in tile 1. (The actual wave
shape depends on the generator signal.)
66 Waveform Monitors Specifications and Performance Verification

Tektronix WFM6120 Specifications

General

Brand	Tektronix
Model	WFM6120
Category	Monitor
Language	English