Adjustment Procedures
5–6
TDS 340A, TDS 360 & TDS 380 Technical Reference
15. Press SET LEVEL TO 50%.
16. Adjust the pulse amplitude for a five-division display.
17. Set the VOLTS/DIV to 1 V.
18. Use an adjustment tool to adjust the CH 1 100X capacitor for the flattest
response.
19. Press WAVEFORM OFF, CH 2, and TRIGGER MENU, in that order.
20. Press the main menu button SOURCE; then press the side menu button
Ch2.
21. Move the coaxial cable to the CH 2 BNC input, reinstalling the 50 W
termination.
22. Repeat steps 7 through 18 for channel 2.
23. Reinstall the instrument cabinet.
Monitor Adjustments
There are no set performance requirements for the monitor. You may use this
procedure to change monitor parameters whenever the brightness, contrast,
horizontal position, or vertical position of the display is not to your liking.
Equipment Required: One adjustment tool (Item 1).
1. Remove the instrument cabinet as described in the removal procedure on
page 6–11.
2. Set the oscilloscope bottom-down with its front facing toward you.
3. Turn on the oscilloscope and allow a 20 minute warm-up period.
4. Press DISPLAY.
5. Press the main menu button Intensity. Use the side menu to set overall
intensity to 100%, Text/Grat to bright, and Waveform to bright.
6. Locate the brightness potentiometer (see Figure 5–4). Use an adjustment tool
(Item 1) to raise the brightness until the background of the screen turns
green.
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