5A48 amplifier plug-in bandwidth DC to 500MHz, display mode CH1 vertical/horizontal system adjustment
5B42 time base plugin scanning speed of at least 10ns/div scanning timing inspection and adjustment
(2) Key inspection items
Trajectory alignment: Horizontal trajectories are aligned with the center horizontal scale line, and vertical trajectories are aligned with the center vertical scale line, with an error of ≤ 0.1 divisions.
Geometric shape: Trajectory curvature/inclination ≤ 0.1 divisions, angle between vertical and horizontal trajectories 90 °± 0.7 °.
Vertical performance:
Gain: Input 1kHz square wave, display 5V reference signal, vertical deflection of 5 divisions ± 0.15 divisions (± 3%).
Bandwidth: Input a 50kHz sine wave, display 6 divisions, increase the frequency until the amplitude drops to 4.2 divisions, and the frequency needs to be ≥ 50MHz (5A48 plugin).
Horizontal performance:
Gain: Input 1kHz square wave, display 5V reference signal, horizontal deviation of 5 divisions ± 0.15 divisions.
Bandwidth: Input a 50kHz sine wave, display 6 divisions, increase the frequency until the amplitude drops to 4.2 divisions, and the frequency needs to be ≥ 2MHz.
Reading system: In dual track mode, readings are displayed at the top/bottom of the CRT without overlap, corresponding to Volts/Div and Sec/Div settings; When CAL controls counterclockwise rotation, the ">" symbol is displayed on the left side of the reading.

Email:wang@kongjiangauto.com