Tektronix WFM 601A, Service Manual

Page: 24 / 368

Specifications
WFM 601A, WFM 601E, & WFM 601M Service Manual
1–3
Table 1–1: Electrical specifications
Characteristic Performance requirement Reference information
Waveform Vertical Deflection
Deflection Factor For digital input: 700 mV digital
input = 700 mV
$
2% screen
display, any magnifier setting
RGB on-screen accuracy
$
3%
Variable Gain Range 0.2X to 1.4X
Frequency Response Luminance channel (Y), to
5.0 MHz
$
2%;
Color difference channels (P
B
and
P
R
) to 2.5 MHz
$
2%
Typically
$
1% to 5.75 MHz luminance (Y)
channel, and
$
1% to 2.75 MHz for the color
difference (P
B
and P
R
) channels
Transient Response
Preshoot
v
1%
Overshoot
v
1%
Ringing
v
1%
Pulse-to-bar ratio 0.99:1 to 1.01:1
Field Rate Tilt
v
1%
Line Rate Tilt
v
1%
Offscreen Recovery 1% variation in baseline of a 5 MHz modulated
pulse when positioned anywhere on screen.
X1, X5, or X10 with any variable gain setting
Voltage Cursor Accuracy
$
0.5% over 20–30
°
C,
$
1%
over rated temperature range
Differentiated Step Filter
Amplitude of pulses
v
1% variation
Low Pass Filter
Gain
1
$
1%
Response
v
3 dB attenuation at 1 MHz,
w
40 dB
attenuation at 4 MHz
Serial Digital Video Interface
(SER A and SER B inputs)
Format 270 Mbit/s component. Complies with SMPTE
259M and CCIR 656
Input Type Passive loop-through, 75
W
compensated
Input Level
800 mV peak-to-peak
$
10%. Input voltages
outside this range might cause reduced receiver
performance.
Return Loss
Power on
w
25 dB 1–270 MHz, channels on or off
Power off
w
15 dB 1–270 MHz
Insertion Loss
v
1%
Transmission Bandwidth
50 kHz – 300 MHz
$
1.0 dB
–3 dB at not less than 500 MHz