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Tektronix 2335 Fault
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William van Niekerk
Nov 13, 2023, 1:19:03 AM11/13/23
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My 2335 has been reliable for so many years and has now become faulty. The horizontal trace will only extend to about halfway of the scale and then folds backon itself. I have checked all the voltages on circuit board A12 and they are all good. I would appreciate any tips on how to diagnose this fault.
legg
Nov 13, 2023, 9:05:30 AM11/13/23
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On Sun, 12 Nov 2023 22:18:59 -0800 (PST), William van Niekerk
<hearin...@gmail.com> wrote:
>My 2335 has been reliable for so many years and has now become faulty. The horizontal trace will only extend to about halfway of the scale and then folds backon itself. I have checked all the voltages on circuit board A12 and they are all good. I would appreciate any tips on how to diagnose this fault.
Start with:
<hearin...@gmail.com> wrote:
>My 2335 has been reliable for so many years and has now become faulty. The horizontal trace will only extend to about halfway of the scale and then folds backon itself. I have checked all the voltages on circuit board A12 and they are all good. I would appreciate any tips on how to diagnose this fault.
https://groups.io/g/TekScopes
Horizontal deflection is usually pretty simple circuitry.
Could be drive transistors going flakey.
RL
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