Download HUNG CHANG HC OSCILLOSCOPE service Page 1 × – 45k – jpg PROTEK PC USER SM. Protek (Hung Chang) Pc Oscilloscope in good condition, comes with Oscilloscope Probe Kit. If you need any more photos, we will be glad to send you as many as you need. | eBay!.

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Oscilloscop Hi, I have the same scope, Hung ChangMine is doing weird things, cant get a uung picture and get things to move around ground.

I still think we have the right idea.

HUNG CHANG HC 20MHZ Oscilloscope | eBay

Or does this also happen on channel B? Ok, I will do that tomorrow, since I am writing a huge suject that I have to study for today. And then consider the power supply is always supplying power regardless of what knob you select or where 3502 trace is, etc. For a better experience, please enable JavaScript in your browser before proceeding. PV charger battery circuit 4.


Oscilloscope Hung Chang 0. Their approach is–diagnose from the front panel. That’s what we’ll try and do.

I am starting to get a better handle on how these things work so maybe I can steer you in the right direction. It also is hnug for triggering when to sweep, blanking the beam when sweeping right to left to start another sweep. I saw the youtube comment Refer to eBay Return policy for more details.

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Learn more – opens in a new window or tab. Forums New posts Search forums. Thanks again for your help, I feel confident that together, we are going to fix this baby! Thread starter shimniok Start date May 3, The horizontal section is what sweeps the beam from left to right.

At present I’d put my money on a problem with the vertical section. Measuring air gap of a magnetic core for home-wound 3052c and flyback transformer 7.

We chhang surplus equipment dealers and do not have the ability or knowledge to test equipment for functionality beyond plugging it in and describing what we observe as best we can.


How reliable is it?

Welcome to our site! Seller’s payment instructions Import duties, taxes and charges are not included in the item price or shipping charges. You are covered by the eBay Money Back Guarantee if you receive an item that is not as described in the listing. Its what I see one the screen. No refunds or returns, please bid accordingly!

Protek P Hung Chang I actually ended up finding a service manual after all Think about when the waveform appears and doesn’t appear — only when the trace deflects to a certain point. So maybe that has something to do with it. It is the bidder’s responsibility to understand that the terms of the auction, the nature of equipment offered and bid accordingly.

So, step one, diagnose the faulty section. Shipping cost cannot be calculated. Had to search a bit. Just a bit off the topic.