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Tektronix 2335 Fault

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Subject: Tektronix 2335 Fault
From: hearing....@gmail.com (William van Niekerk)
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by: William van Niekerk - Mon, 13 Nov 2023 06:18 UTC

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.

Re: Tektronix 2335 Fault

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by: legg - Mon, 13 Nov 2023 14:05 UTC

On Sun, 12 Nov 2023 22:18:59 -0800 (PST), William van Niekerk
<hearing.maths@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:

https://groups.io/g/TekScopes

Horizontal deflection is usually pretty simple circuitry.

Could be drive transistors going flakey.

No amount of genius can overcome a preoccupation with detail.

tech / sci.electronics.repair / Tektronix 2335 Fault

Subject	Author
Tektronix 2335 Fault	William van Niekerk
Tektronix 2335 Fault	legg