Tektronix 1502C Service Manual

Calibration
1502C MTDR Service Manual
6–39
O
F
F
O
F
F
O
F
F
O
N
ac –2.000 ft
Figure 6–64: Incident Pulse at –2.000 ft
7. If necessary, readjust the
n
o
POSITION control to center the baseline on the
center horizontal graticule line.
8. Attach the 3-foot precision cable to the front-panel CABLE connector. This will
probably cause the waveform to move slightly on the display.
9. Adjust R1042 (Zero Offset) to move the waveform to the same position as when
no connector was attached to the front panel.
R1042
U1050
C1041
U2050
Q1060
TP
C2051
J3040
C3
C3
TP106
C1040
CR1040
R1040 R1041 R1050 R1051 C1050 R1052 R1053 C1060 C1061
R2040 C2040 R2041
R2045
R2042 R2043 C2041 C2050 R2050
C2053
R3040
C2042
Q2040
R2046 R2047 R2048
Q2050
R2049 R2051 R2052 R2053 R2054
CR2050 CR2051 CR2052
C2052
R3050 R3051 C3060 C3061
123
Figure 6–65: R1042 on Driver/Sampler Board
10. Remove the 3-foot precision cable.
11. Verify that the waveform moves less than 0.5 division.
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Tektronix 1502C Specifications

General

Brand	Tektronix
Model	1502C
Category	Measuring Instruments
Language	English