Tektronix Webcam 070-8030-01 User Manual
Adjustment Procedures
5–8
1780R-Series Service Manual
Adjustment List
Table 5–2 lists all of the adjustments by step number sequence. This table can be
used as a short form adjustment procedure for those who are familiar with the
adjustment procedure for the 1780R-Series.
used as a short form adjustment procedure for those who are familiar with the
adjustment procedure for the 1780R-Series.
Table 5–2: 1780R-Series Adjustments for Calibration Procedure
Step #
Adjustment Name
A #
Circuit
Number
Number
Diag #
2
+5 V Adj
A1
R219
43
2
Ripple Null
A16
R135
42
3
Set Software Options (not required unless calibration data
becomes lost or invalid)
N/A
N/A
N/A
4
(WFM) CRT Bias
A16
R420
42
5
(WFM) Astigmatism
A16
R122
42
5
(WFM) Focus
A16
R130
42
6
(Vector) CRT Bias
A3
R373
41
7
(Vector) Focus
A3
R182
41
7
(Vector) Astigmatism
A3
R200
41
8
DAC Gain
A2
R231
12
8
H Shape
A5
R536
20
8
V Shape
A5
R555
20
9
(WFM) Geometry
A16
R112
42
9
(WFM) Orthogonality
A2
R536
6
10, 33
WFM Readout H Gain
A2
R167
11
10, 33
WFM Readout H Center
A2
R170
11
10
Vert Readout Size
A2
R215
6
10, 18
Vert Readout Pos
A2
R309
6
11
(Vector) Geometry
A3
R101
41
11
(Vector) Orthogonality
A6
R511
30
12
Readout Horiz Pos
A6
R523
30
12
Readout Vert Pos
A6
R620
30
12
Readout Vert Gain
A6
R833
30
12
Readout Horiz Gain
A6
R836
30
13
Pix Vert Gain
A6
R404
29
13
Pix Vert Pos
A6
R407
29
13
Pix Horiz Gain
A6
R604
29
13
Pix Horiz Pos
A6
R606
29