User Manual

UM IPC-4300H 040320NA 77
Table 2, Video Signal Peak to Peak Values
NTSC
Video signal level
140 ± 15 IRE
Chroma level
(color burst)
40 ± 5 IRE
SYNC signal level
40 ± 5 IRE
PAL
Video signal level
1000 ± 200 mV
Chroma level
(color burst)
300 ± 35 mV
SYNC signal level
300 ± 35 mV
• Video Signal Peak-to-Peak Levels:
For NTSC, the video signal level is 140 ± 15 IRE.
For PAL, the video signal level is 1000 ± 200 mV.
If the level is too low, it will cause the image to lose quality and
limit the distance traveled over cable. If the level is too high, the
image will be distorted.
• SYNC Level:
Tests the amplitude of the video sync pulse to verify if the video
level is correct.
For NTSC, the Sync level is 40 ± 5 IRE.
For PAL format, the Sync level is 300 ± 35 mV.
If the level is too low, the image will not frame out properly. If the
level is too high, image quality will be poor.
• Color Burst Level:
Testing the color burst level will determine if the burst signal is
sufficient enough to trigger the display’s color-producing circuit.