Tektronix 1740A Series, User Manual

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Specification
1740A/1750A/1760 – Series Service Manual
1–4
Table 1–1: Waveform Vertical Deflection (Cont.)
(PAL Values in Parentheses)
CATEGORY
DESCRIPTION
Luminance Filter Chrominance Rejection
(1745A–1755A–1765 only) 34 dB
Chrominance Filter Gain 1 1%
RI: Ref. is flat at F
SC
(3.58 or 4.43 MHz)
Performance Verification Procedure Step : 14
Chrominance Filter Bandwidth 1.5 MHz 0.3 MHz
RI: Centered at F
SC
. Passband is typically F
SC
+ and – 750 kHz
Chrominance Filter Attenuation at 2X F
SC
RI: 25 dB
Differentiated Step Filter Attenuation at 2X F
SC
RI: 40 dB
Transient Response Pulse-to-Bar Ratio 0.99:1 to 1.01:1
RI: Preshoot 1%
RI: Overshoot 1%
RI:
Ringing 1%
Field-Rate Tilt 1%
Line-Rate Tilt 1%
RI:
Differential Gain 1%
Performance Verification Procedure Step
:
17
Pix Out Gain 1 3%
Pix Out Frequency Response 3% to 6 MHz
Pix Out Differential Gain RI: 1%
Pix Out Differential Phase RI: 1
°
Pix Out Output Impedance
RI:
75
Pix Out Return Loss 30 dB to 6 MHz
Performance Verification Procedure Step
:
34
Pix Out Line Select Strobe RI: A dc offset is added to output in line select to bright up the selected line
or lines.
DC Restorer 60 Hz (50 Hz) Attenuation Slow Mode 10%
Fast Mode 95%
RI:
Back porch or sync tip clamp point is selected through menu.
Performance Verification Procedure Step
:
18
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