Tektronix 1720 User Manual

Contents
vi
1720/1721
Figure 4-2: Block diagram of the Phase Lock Loop 4–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 5-1: Rear view of Remote plug connections.. 5–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 5-2: Loop–through connection of black burst signal to both EXT REF and CH-B. 5–7. . .
Figure 5-3: Using the vector graticule –3 dB markings to measure bandwidth. 5–8. . . . . . . . . . . .
Figure 5-4: Signal connection for checking CH-A/CH-B phase matching. 5–10. . . . . . . . . . . . . . .
Figure 5-5: Rear-panel XY INPUT connector showing inputs.. 5–14. . . . . . . . . . . . . . . . . . . . . . . .
Figure 5-6: Audio frequency XY display. 5–15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 5-7: Adjustment and test point locations for 1720/1721 Vectorscope. 5–17. . . . . . . . . . . . . .
Figure 5-8: Starting connections for the adjustment procedure. 5–18. . . . . . . . . . . . . . . . . . . . . . . .
Figure 5-9: Test points and adjustment locations for the 11.8V supplies. 5–21. . . . . . . . . . . . . . .
Figure 6-1: Circuit board assembly locations 6–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 6-2: Multiple pin connectors used in the 1720/1721 Waveform Monitors 6–6. . . . . . . . . . .
Figure 6-3: Screws that need to be removed to remove the bezel. 6–17. . . . . . . . . . . . . . . . . . . . . .
Figure 6-4: Screws that need to be removed to remove the rear panel 6–19. . . . . . . . . . . . . . . . . . .
Figure 6-5: Screws that hold the Front Panel circuit board (A2) in place. 6–20. . . . . . . . . . . . . . . .
Figure 6-6: Screws holding the main circuit board (A3) in place. 6–21. . . . . . . . . . . . . . . . . . . . . . .
Figure 6-7: Screws holding the Power Supply circuit board (A1) in place. 6–22. . . . . . . . . . . . . . .
Figure 6-8: Repackaging 6–23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Tektronix 1720 Specifications

General

Brand	Tektronix
Model	1720
Category	Measuring Instruments
Language	English