Service manual

STP 11-25R13-SM-TG
S - 40
S-31. SIN
2
Pulse and Bar.
The components of the pulse and bar signal are the 12.5T modulated pulse, the 2T pulse, and the T
bar. The signal is used to perform a variety of linear distortion measurements. See Figures S-40 and
S-41. Table S-6 lists some of the parameters measured with this signal and the distortions that can
cause a change in these parameters.
Table S-6. SIN
2
Pulse and Bar Parameters
Figure S-40. SIN
2
Pulse and Bar Test Signal
Test Signal Measurement
Pulse-to-bar ratio Bandwidth distortion
Pulse ringing Frequency response
Pulse rise and fall times Quadrature distortion
Bar tilt Line-time distortion
Modulated pulse baseline Chrominance/luminance delay
Modulated pulse amplitude Chrominance/luminance gain