Performance Verification
4.6 Scope Input A&B Tests 4
4-23
• sync pulse amplitude > 0.7 div.
• chroma amplitude zero.
4. Observe the trace, and check to see if the test tool triggers on line number:
⇒ 622 for PAL or SECAM, see Figure 4-9
⇒ 525 for NTSC, see Figure 4-10.
Figure 4-9. Trace for PAL/SECAM line 622
Figure 4-10. Trace for NTSC line 525
5. Using select line number:
⇒ 310 for PAL or SECAM
⇒ 262 for NTSC
6. Observe the trace, and check to see if the test tool triggers on:
⇒ line number 310 for PAL or SECAM, see Figure 4-11.
⇒ line number 262 for NTSC, see Figure 4-12.
Figure 4-11. Trace for PAL/SECAM line 310
Figure 4-12. Trace for NTSC line 262
7. Apply the inverted TV Signal Generator signal to the test tool.
Invert the signal by using a Banana Plug to BNC adapter (Fluke PM9081/001) and a
Banana Jack to BNC adapter (Fluke PM9082/001), as shown in Figure 4-13.
To Next Page
Loading...
Need help?
General
