Power Supply And Crt Display; Index To Adjustment Procedure Steps - Tektronix 2235 Instruction Manual

Adju st ment Pr ocedure-2235 Service
I
NDEX TO ADJUSTMEN T PROCE DURE
H
orizontal P age
STEPS
1 . Adjust Horizontal Am
p
lifier Gain . . . . . . . . . . . . . 5-14
2 . Adjust Χ10 Horizontal Am
p
lifier Gain . . . . . . . . . 5-15
3 . A
d
ju st Magnifier
R
egistration . . . . . . . . . . . . . . . 5-15
P
ower Su pp ly an
d
C
RT Dis
p
lay
P
age
4 . Chec k Swee p Lengt h . . . . . . . . . . . . . . . . . . . . . 5-15
1 . Chec k/Adjust Power Su pp ly DC
L
evels . . . . . . . 5-4
5 . Chec k Position
R
ange . . . . . . . . . . . . . . . . . . . . . 5-15
2. Chec k Hig h-Voltage Su pp ly . . . . . . . . . . . . . . . . . 5-5
6. Chec k Varia ble
R
ange . . . . . . . . . . . . . . . . . . . . . 5-15
3. Adj ust CRT Gri
d
B ias . . . . . . . . . . . . . . . . . . . . . 5-5
7 . Adjust Delay Dial Timi ng . . . . . . . . . . . . . . . . . . . 5-16
4. Adj ust Astigmatism . . . . . . . . . . . . . . . . . . . . . . . 5-5
8. Adjust Hig h-Speed Timing . . . . . . . . . . . . . . . . . . 5-16
5. Adjust Trace Alig nme nt . . . . . . . . . . . . . . . . . . . . 5-5
9. Adjust 5-ns Timing and
L
inearity . . . . . . . . . . . . . 5-16
10 . Check Timing Accuracy and
L
inearity . . . . . . . . . 5-16
6. Adjust Geometry . . . . . . . . . . . . . . . . . . . . . . . . . 5-5
11 . Check Delay Time Dial
R
ange and Accuracy . . . 5-17
Vertical
12 . Check Delay
J itter . . . . . . . . . . . . . . . . . . . . . . . . 5-18
13 . Check Swee
p
Sepa ration . . . . . . . . . . . . . . . . . . 5-19
1 . Ad just Attenuator Ste
p
B alance . . . . . . . . . . . . . 5-6
14 . Ad just Χ Gain
. . . . . . . . . . . . . . . . . . . . . . . . . . . 5-19
2 . Ad just 2/5 mV DC
B alance . . . . . . . . . . . . . . . . . 5-7
15 . Chec k Χ
B andwidt h . . . . . . . . . . . . . . . . . . . . . . . 5-19
3 . Ad ju st Channel 1
V
ariable
B
alance . . . . . . . . . . . 5-7
16 . Chec k Α-Swee
p
Holdoff . . . . . . . . . . . . . . . . . . . 5-19
4 . Ad just Channel 2 Invert
B alance . . . . . . . . . . . . . 5-7
5. Ad just MF /LF Compensation and Gain Balance .5-7
6. A
d
just
V
ertical Gain . . . . . . . . . . . . . . . . . . . . . . . 5-8
7. C hec k Deflection Accuracy an d Variable Range .5-8
Trigge r
8. C hec k In
p
ut Cou
p
ling . . . . . . . . . . . . . . . . . . . . . 5-8
9. Adjust Attenuator Compensatio n . . . . . . . . . . . . 5-9
1 . Adjust Trigger Offset . . . . . . . . . . . . . . . . . . . . . . 5-20
10 . Chec k Alternation Operation . . . . . . . . . . . . . . . . 5-10
2. Adju st Trigger Sensitivity . . . . . . . . . . . . . . . . . . . 5-20
11 . Chec k Ch op Operation . . . . . . . . . . . . . . . . . . . . 5-10
3. Adju st Slope
B
alance . . . . . . . . . . . . . . . . . . . . . 5-21
12 . Adjust Hig h-Frequency Pea king Compensation ,
4. Adjust Ρ-Ρ Auto Trigger Centering . . . . . . . . . . . 5-21
Delay
L
ine Compensatio n , and C hannel 2
H
ig h-
5. Chec k
I
nternal Trigge ring . . . . . . . . . . . . . . . . . . 5-21
Frequency Compensation . . . . . . . . . . . . . . . . . . 5-10
6. Check Exter nal Triggering . . . . . . . . . . . . . . . . . . 5-22
13 . Adjust 2-mV Pea king Com pensation . . . . . . . . . 5-11
7. Check Exter nal Trigge r Ranges . . . . . . . . . . . . . 5-22
8
14 . Chec k Trigger
V
iew Gai n . . . . . . . . . . . . . . . . . . 5-11
. Check Si ngle Swee
p
Operation . . . . . . . . . . . . . 5-23
15 . Chec k Position
R
ange . . . . . . . . . . . . . . . . . . . . . 5-11
16 . Chec k Bandwidth Limit Operation
. . . . . . . . . . . 5-12
17 . Chec k Bandwidth
. . . . . . . . . . . . . . . . . . . . . . . . 5-12
E
xternal Ζ-Axis an
d
P
ro be Adjust
18 . Chec k Ch an nel Isolation . . . . . . . . . . . . . . . . . . . 5-12
19 . Check Common-Mode R ejection R
atio . . . . . . . . 5-13
1 . Chec k External Ζ -Axis Operation . . . . . . . . . . . . 5-24
20 . Check
I
np ut Gate Curre n t . . . . . . . . . . . . . . . . . . 5-13
2. Chec k Pro be Adjust Operation . . . . . . . . . . . . . . 5-24