How to troubleshoot Tektronix Test Equipment when the inverter won't start?
If the 051824 is not blinking, check for an open line fuse or other malfunction. Check for a blinking neon oscillator 051824 on the Inverter board. Check the '0' start pulse with an AC-coupled probe at TP 1835. Check Q1900 and Q1902 for shorts.
What to do if Tektronix 485 inverter starts and shuts off at a fast rate?
The overvoltage stop circuit may be stopping the inverter when the connector is out. Check comb connector 'A' for proper installation. Also, check the power from T1848 reaching U1910 Pin 6 (+7.5V) and Pin 7 (-2V). Finally, check secondary voltages for overvoltage.
How to fix no intensity control or poor focus control on Tektronix Test Equipment?
If the diodes check out okay, compare the circuit waveforms to those given in Fig. 4-2. Check the DC restorer diodes in the CAT circuit. Check for proper levels at outputs of the Z Axis and Auto Focus circuits.
Why is there excessive ripple on semi-regulated supplies in my Tektronix Test Equipment?
Due to the symmetry of operation, an open rectifier on one supply will cause ripple on all supplies. Look for an open rectifier diode and compare the ripple frequency on the input capacitor of each semi-regulated supply.
General| Bandwidth | 350 MHz |
|---|---|
| Channels | 2 |
| Rise Time | 1 ns |
| Input Coupling | AC, DC, GND |
| Trigger Modes | Auto, Normal, Single |
| Display | CRT |
| Weight | 9.8 kg |
| Trigger Sources | Line |
| Power Requirements | 100-240 VAC, 48-440 Hz |
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