Performance Verification
3.5 Input A and Input B Tests 3
3-31
• Fluke 125: press to open the TRIGGER menu and choose:
VIDEO on A
The VIDEO TRIGGER sub-menu is shown now. From the VIDEO TRIGGER
menu choose:
SYSTEM: NTSC or PAL or SECAM or PALplus |
• LINE: SELECT | POLARITY: NEGATIVE
• Using
set the Input A sensitivity to 200 mV/div.
• Using
select 20 μs/div.
9. Using
select the line number:
⇒ 310 for PAL or SECAM
⇒ 262 for NTSC
10. Observe the trace, and check to see if the test tool triggers on:
⇒ line number 311 for PAL or SECAM, see Figure 3-16
⇒ line number 262 for NTSC, see Figure 3-17.
PAL310I..BMP
Figure 3-16. Test Tool Screen for PAL/SECAM
line 310 Negative Video
NTSC262I.BMP
Figure 3-17. Test Tool Screen for NTSC line 262
Negative Video
This is the end of the Performance Verification Procedure.
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