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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PV charger battery circuit 4. Select a valid country. How reliable is it? Part and Inventory Hhng. Had to search a bit. Take a look at that PDF and just kind of skim through it and get the gist.

Protek P Hung Chang Thanks wyatt! I just made a video of it, can I maybe mail it to you or how do I post it. Learn More – opens in a new window or tab International shipping and import charges paid to Pitney Bowes Inc. I captured some stills from the video just for my own reference. See other items More This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.

I think the fact that the trace goes haywire lower on the screen suggests something wrong with the voltage supplied to the Y- plate.

No additional import charges at delivery! It also is responsible for triggering when to sweep, blanking the beam when sweeping right to left to start another sweep. Hierarchical block is unconnected 3. This item may be a floor model or store return that has been used. Email to friends Share on Facebook – opens in a new window or tab Share on Twitter – opens in a new window or tab Share on Pinterest – opens in a new window or tab.

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So maybe that has something to do hungg it. See all condition definitions – opens in a new window or tab This amount is subject to change until you make payment. Forums New posts Search forums. To participate you need to register. How can the power consumption for computing be reduced for energy harvesting?

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Service manual – Protek P3502 (Hung Chang) Oscilloscope

We love our international customers and would love to have your business but due to the nature of the used equipmentand that all items are untested and used, all sales are final. Think about when the waveform appears and doesn’t appear — only when the trace deflects to a certain point.

One I am repeating All equipment is sold-as-is. Can you maybe explain to me what that z axis bnc port on the back of the oscilloscope is for???

Hung Chang Oscilloscope Manuals – lostfuture

Second, when you set Channel A coupling to AC and adjust the position knob, what happens? The o-scope is made up of several main sections.


I don’t have the service manual or a schematic so this is a nightmare to figure out.

If I flip the channel A to ground, your suppose to see a straight line, right? Funny thing — it turns out that the Protek site has a PC service manual! Distorted Sine output from Transformer 8. I still think we have the right idea. You mean you can’t focus the beam with the focus knob? What I predict is going to happen is that the part of the waveform appearing above the top half of the screen will look normal while the bottom half will look wonky.

Resume making your offerif the page does not update immediately. Due to the nature of used and surplus equipment no guarantees or warranties either expressed or implied are offered unless specifically noted in the description.

I have this Protek P aka Hung Chang oscilloscope that has a couple of power resistors that got cooked. Subject to credit approval.

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Will usually ship within 1 business day of receiving cleared payment – opens in a new window or tab. Service manual or circuit diagram 4 Protek Oscilloscope 1. Read section in the service manual for a little overview of how the vertical section works