Tektronix 070-8030-01 User Manual
Adjustment Procedures
1780R-Series Service Manual
5–9
Table 5–2: 1780R-Series Adjustments for Calibration Procedure (Cont.)
Step #
Diag #
Circuit
Number
Number
A #
Adjustment Name
14
Cal Gain
A2
R1137
5
15
(Diff Amp Accuracy) LF CMR
A2
R1033
5
16
Gain B1
A8
R347
1
17
Gain B3
A8
R394
2
17
Gain B2
A8
R370
2
17
Gain A
A8
R323
1
18
Var Gain Regis
A2
R510
6
18
X5 Gain Regis
A2
R526
6
19
X5 Gain
A2
R422
6
19
Var Gain Centering
A2
R514
6
19
LP Filter Gain
A2
R754
5
20
Cursor Gain
A2
R1017
5
21
X1 Flat Resp
A2
C418, R418
6
21, 22
X5 Flat Resp
A2
C422, R421
6
21
Output HF Resp Comp
A2
C527, R534
6
21
Gain Cell Freq Resp
A2
C611, R612
6
21
Limiter
A2
R628
6
23–26
B3 CMR
A2
C1131
4
23–25
B2 CMR
A2
C1232
4
23, 24
B1 CMR
A2
C1329
4
23
B3 CMR
A2
R1135
4
23
B2 CMR
A2
R1221
4
23
B1 CMR
A2
R1333
4
27
Lum Trans Resp
A2
L947, L951
5
28
Lum Offset
A2
R743
5
28
Lum Gain
A2
R747
5
29
LP Trans Resp
A2
R1050
5
30
BP 1
A2
C831
5
30
BP 2
A2
C930
5
30–31
Chroma Gain
A2
R828
5
31
Chroma Off set
A2
R732
5
32
X25 Mag
A2
R471
11
32
X50 Mag
A2
R474
11
32
X100 Mag
A2
R476
11