Adjustment Procedure— 2215A Service
INDEX TO ADJUSTMENT PROCEDURE
STEPS
Power Supply and CRT Display
Page
1. Check/Adjust Power Supply DC Levels ............. 5-4
2. Check High-Voltage S u p p ly .................................. 5-5
3. Adjust CRT Grid Bias .......................................... 5-5
4. Adjust Astigmatism .............................................. 5-5
5. Adjust Trace Alignment ........................................ 5-5
6. Adjust Geometry ................................................... 5-5
Vertical
1. Adjust Attenuator Step Balance .......................... 5-6
2. Adjust 2/5 mV DC Balance .................................. 5-6
3. Adjust Channel 1 Variable B a la n c e ...................... 5-7
4. Adjust Channel 2 Invert B a lance.......................... 5-7
5. Adjust MF/LF Compensation and Gain Balance . 5-7
6. Adjust Vertical Gain .............................................. 5-8
7. Check Deflection Accuracy and Variable Range . 5-8
8. Check Input Coupling ........................................... 5-8
9. Adjust Attenuator Compensation ........................ 5-9
10. Check Alternation O p eratio n ................................ 5-10
11. Check Chop Operation ......................................... 5-10
12. Adjust High-Frequency Compensation and
Delay Line Compensation .................................... 5-10
13. Check Bandwidth Limit Operation .................... 5-11
14. Check Bandwidth ............................................... 5-11
15. Check Channel Isolation ..................................... 5-11
16. Check Common-Mode Rejection R a tio ............... 5-12
17. Check Input Gate C u rre n t................................... 5-12
Horizontal
Page
1. Adjust Horizontal Amplifier Gain ......................... 5-13
2. Adjust X I0 Horizontal Amplifier Gain ................. 5-14
3. Adjust Magnifier Registration ............................. 5-14
4. Check Position R a n g e ......................................... 5-14
5. Check Variable R a n g e ......................................... 5-14
6. Adjust Delay Dial Timing ..................................... 5-14
7. Adjust High-Speed T im in g ................................... 5-15
8. Adjust 5-ns Timing and Linearity......................... 5-15
9. Check Timing Accuracy and L in e a rity................. 5-15
10. Check Delay Time Dial Range and Accuracy . . . 5-16
11. Check Delay J it t e r ................................................ 5-17
12. Adjust X Gain ...................................................... 5-18
13. Check X B andw idth............................................. 5-18
14. Check A-Sweep Holdoff ..................................... 5-18
Trigger
1. Adjust Trigger Offset ........................................... 5-19
2. Adjust Trigger Sensitivity..................................... 5-19
3. Adjust Slope Balance ......................................... 5-20
4. Adjust P-P Auto Trigger Centering ..................... 5-20
5. Check Internal Triggering ................................... 5-20
6. Check External Triggering ................................... 5-21
7. Check External Trigger Ranges ......................... 5-21
8. Check Single Sweep Operation ......................... 5-22
External Z-A xis and Probe Adjust
1. Check External Z-Axis Operation ....................... 5-23
2. Check Probe Adjust Operation ........................... 5-23
5-3
Summary of Contents for 2215A
Page 1: ......
Page 9: ...2215A Service 4735 01 vi The 2215A Oscilloscope ...
Page 138: ...2215A Service 4735 04 Figure 9 4 Basic block diagram ...
Page 139: ......
Page 145: ...CIRCUIT BCARD N TER CONNECTIONS 2 2 1 5 A 4755 20 ...
Page 153: ...2215A S e rv ic e D UJ o C D GO CO in 10 CJ Figure 9 8 Circuit view of A1 Main board ...
Page 157: ...1 p 2 m 3 p 4 p 5 P 6 p 7 p 8 p 9 A T B Z 2 I5 A ...
Page 158: ...H T J t K t L t M T N T p t S 4 7JS Z2 ...
Page 168: ...I 2 3 4 5 6 7 8 9 B H K L M N 2 2 I 5 A 473S Z ...
Page 173: ...I 2 to 3 to 4 to 5 to 6 7 to 8 to 9 2 215A B TIMING ALTERNATE B SWEEP S ...
Page 176: ......
Page 181: ...I 2 3 4 5 6 7 8 9 AXIS CRT ...
Page 189: ...2215A Service 4735 11 ...
Page 193: ...3 ...
Page 194: ...2215A SERVICE ...
Page 195: ...4 7 5 ...
Page 200: ......
Page 202: ...2215A SERVICE ...
Page 205: ...000 2775 00D ...