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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Click here uung register now. Could be a tube problem. Have you had any luck?? And then consider the power supply is always supplying power regardless of what knob you select or where the trace is, etc. Digital multimeter appears to have measured voltages lower than expected. 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. So maybe that has something to do with it. Refer to eBay Return policy for more details.

See other items More Ok, I will do that tomorrow, since I am writing a huge suject that I have to study for today. The power supply of course provides various voltage to all the other sections. Back to home page. Select a valid country. Media New media New comments Search media. We are surplus equipment dealers and do not jung the ability or knowledge to test equipment for functionality beyond plugging it in and describing what we observe as best we can.


See terms – opens in a hunv window or tab. In the PDF take a look at the chapter called “Troubleshooting the Vertical Section” Let’s see if chag can isolate down to the block, circuit and then component levels. Can you maybe explain to me what that z axis bnc port on the back of the oscilloscope is for??? To participate you need to register.

Protek P (Hung Chang)

Distorted Sine output from Transformer 8. How do you get an MCU design to market quickly?

I am starting to get a better handle on how these things work so maybe I can steer you in the right direction. Also could be a problem with the focus circuitry.

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The time now is Will usually ship within 1 business day of receiving cleared payment – opens in a new window or tab. Changg the item you ordered or get your money back.

What about when you set coupling to DC? At present I’d put my money on a problem with the vertical section. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.


Service manual – Protek P3502 (Hung Chang) Oscilloscope

Synthesized tuning, Part 2: Funny thing — it turns out that the Protek site changg a PC service manual! Interest will be charged to your account from the purchase date if the balance is not paid in full within 6 months. All buyers must contact us at the end of the auction if invoice through ebay has not been received. Think about when the waveform appears and doesn’t appear — only when the trace deflects hunt a certain point.

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