Fluke 225C Service Manual - Page 50

for PAL, PALplus or SECAM

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Fluke 19xB-19xC-2x5C Service Manual 5. Using select test tool line number: ⇒ 310 for PAL, PALplus or SECAM ⇒ 262 for NTSC 6. Set the calibrator format and marker line number to : ⇒ PAL 310 (odd), for PAL and PALplus ⇒ SECAM 310 (odd), for SECAM ⇒ NTSC 262 odd, for NTSC. 7. Observe the trace, and check to see if the test tool triggers on the negative pulse before the marker. 8. Select the following test tool setup: • Press to open the Trigger Options menu. • Choose VIDEO on A... , then from the shown opened menu choose Polarity: NEGATIVE | PAL ( or NTSC PALplus SECAM ) 9. Set the calibrator video trigger output signal to -100% 10. Using select line number 310 (PAL, PALplus or SECAM) or 262 (NTSC) 11. Set the calibrator format and marker line number to : ⇒ PAL 310 (odd), for PAL and PALplus ⇒ SECAM 310 (odd), for SECAM ⇒ NTSC 262 odd, for NTSC. 12. Observe the trace, and check to see if the test tool triggers on the positive pulse before the marker. Figure 4-17. SC600 Marker Pulse video-sc600.bmp 4-26

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Fluke 19xB-19xC-2x5C
Service Manual
4-26
5.
Using
select test tool line number:
⇒
310 for PAL, PALplus or SECAM
⇒
262 for NTSC
6.
Set the calibrator format and
marker line number to :
⇒
PAL 310 (odd), for PAL and
PALplus
⇒
SECAM 310 (odd), for SECAM
⇒
NTSC 262 odd, for NTSC.
7.
Observe the trace, and check to see if the test tool triggers on the negative pulse
before the marker.
8.
Select the following test tool setup:
•
Press
to open the Trigger Options menu.
•
Choose
VIDEO on A...
, then from the shown opened menu choose
Polarity:
NEGATIVE |
PAL
(
or
NTSC
PALplus
SECAM
)
9.
Set the calibrator video trigger output signal to -100%
10.
Using
select
line number 310 (PAL, PALplus or SECAM) or 262 (NTSC)
11.
Set the calibrator format and
marker line number to :
⇒
PAL 310 (odd), for PAL and
PALplus
⇒
SECAM 310 (odd), for SECAM
⇒
NTSC 262 odd, for NTSC.
12.
Observe the trace, and check to see if the test tool triggers on the positive pulse
before the marker.
video-sc600.bmp
Figure 4-17. SC600 Marker Pulse