Tektronix 070-8030-01 User Manual
Adjustment Procedures
5–10
1780R-Series Service Manual
Table 5–2: 1780R-Series Adjustments for Calibration Procedure (Cont.)
Step #
Diag #
Circuit
Number
Number
A #
Adjustment Name
33
H Mag Reg
A2
R344
11
34
Slow Sweep Trig Level
A2
R761
13
35
Burst Lock Center Freq
A7
C182
31
35
+Delta F Center Freq
A7
C252
32
35
Output Center Freq
A7
C452
32
35
DC Balance
A7
R286
31
36
100% Phase
A6
C570
25
36
Quad Phase
A6
C850
28
36
Vert R–Y Gain
A6
R227
28
36
Test Circle Ampl
A6
R286
25
36
100% Gain Set
A6
R56 8
25
36
Chrom Gain Range
A6
R572
25
36
Horiz B–Y Gain
A6
R643
28
36
SCH Gain
A6
R667
27
37
DP Zero
A6
C172
26
37
DG Offset
A6
R167
26
37
Demod Offset
A7
R314
34
37
DAC Offset
A7
R315
34
37
DAC Gain
A7
R322
34
37
Demod Offset
A6
R369
26
37
Demod Gain
A6
R370
26
38
VCO Adj
A2
C1072
8
38
VCO Adj
A2
C1194
15
38
Coarse SCH Adj
A2
J986
15
38
Ref SCH Adj
A2
R1263
8
38
Fine SCH Adj
A2
R1281
15
38
SCH Offset
A2
R1455
15
39
10 MHz Ref
A4
C109
37
39
Cursor Clock Centering
A4
L115
37
39
Analog Delay
A4
R110
37
40
Lum Comp
A6
C153
30
41
X Gain
A6
R113
29
41
Y Gain
A6
R308
29
42
RGB/YRGB Staircase Comp
A5
C195
19