TSP

Рет қаралды 16,887

Жыл бұрын

In this episode Shahriar repairs another high-voltage Tektronix probe, this time a THDP0100 which is capable of measuring 6kV signals up to 100MHz. The probe does not get detected by the scope. However, it soon becomes clear that the problem with this probe is much more involved than the previous repair.
The probe has a short-circuit inside the probe body as well as several damaged components. Each is replaced one step at a time until a final fault is also detected in the probe head. After the repair, the probe is zeroed, calibrated and used to measure a signal at 6kVpp using an Associated Research HYPOT tester.
www.TheSignalPath.com
/ thesignalpath
www.Patreon.com/TheSignalPath

Пікірлер: 52

@N0gtail Жыл бұрын

Only a couple of hours? This would have stumped me for days! Good job!

@RandomUser2401 Жыл бұрын

He clearly is on the next level..

@tarheels100 Жыл бұрын

It's nice seeing the master himself get a "meaty" repair job. You know it's been tricky when you sense some frustration (albeit subtle) from Shahriar!

@DrFrank-xj9bc Жыл бұрын

I enjoyed especially @ 10:28 hearing: ".. if it doesn't work, it's going to be thrown out of the window.."😂😂. Never heard before that you reached your frustration limit. 🖖.Well done!

@video99couk Жыл бұрын

Just got in a thermal imaging camera for this sort of work. Not the sort of thing you use every day but in some cases it is fantastic.

@techskeet Жыл бұрын

Beautiful video. Well explained procedure. Unfortunately, with many repairs you can not easily get the firmware that allows reprogramming. I think Pooch has really good contacts in the industry ;-)

@rj44319 Жыл бұрын

I was thinking the same thing, how the heck did he get FW....

@Edisson. Жыл бұрын

@@rj44319 What fw, I will not get some components let alone fw in the Czech Republic

@joopterwijn Жыл бұрын

I believe he got the firmware from a viewer whom read it from a working model.

@TC-zt1sp Жыл бұрын

@@joopterwijn So you never heard about "lock bits"? Lucky you! I guess...

@lasersbee Жыл бұрын

I like the way you hunt down a defective part. Always interesting to watch.

@jimomertz Жыл бұрын

I hope Pooch isn’t wandering around when you have that 6kV engaged 🙀 Nice fix!

@Thesignalpath Жыл бұрын

He gets locked out of the lab whenever there are exposed high-voltage setups or high-power optics/lasers.

@jimomertz Жыл бұрын

@@Thesignalpath I figured you’d be sensible 🙂

@cheater00 Жыл бұрын

Niiiice, we're watching it in the Tek/HP Discord right now :)

@TheFool2cool Жыл бұрын

Do you have a link to the discord?

@cheater00 Жыл бұрын

@@TheFool2cool what's your discord user name? i'll send you an invite. can't post a link.

@NaudioElectronics Жыл бұрын

Nice repair! If you check the 10k resistor you will see a small spot in the center.

@fredflickinger643 Жыл бұрын

Good methodology and test device use for a relatively quick solution!

@Edisson. Жыл бұрын

Perfect demonstration of professional diagnostics and subsequent repair, recently I looked at eBay after the differential probe, but in the end I did not buy it - I do not know what I would do with it if it had a similar defect. Nice day🙂Tom

@ThermalWorld_ Жыл бұрын

We love this long videos 😁 Awesome repair ❤️

@swebigmac100 Жыл бұрын

Excellent repair and codus for not beeing let down when it was multiple faults.

@andymouse Жыл бұрын

Awesome fix.....cheers!

@lohikarhu734 Жыл бұрын

If you spent a few hours, and bought the probe as defective, vs. New price, that's a well-paid few hours. Nice... i'd be interested to see your techniques for pulling these smd parts...maybe on a previous video.

@aliveli8650 Жыл бұрын

i follow your channel for more than 2 years. this is by far most interesting video you uploaded recently. please add more repair videos. nevertheless, solid skills, solid debugging capabilities!! respect!

@Trucam2020 Жыл бұрын

Thanks. Excellent video.

@labiadh_chokri Жыл бұрын

Nice repair, always you deal with high frequency stuff.

@happyhippr Жыл бұрын

super cool

@aqib2000 Жыл бұрын

How did you source the firmware to reprogram the processor?

@stargazer7644 Жыл бұрын

Watch the other video to find out how he did the firmware. kzfaq.info/get/bejne/mNupeq6XusvIn2Q.html

@philipgabriel3418 Жыл бұрын

Shahriar, I enjoy the content of your videos tremendously. Do you have a presentation on protection of sensitive and valuable equipment such as spectrum analyzers, VNAs, etc from static damage? Also, one of my spectrum analyzers has 0 volts tolerance to DC. Should I always use a DC block?

@erikbertram6019 Жыл бұрын

It is interesting how many different problems this probe had. Do you reckon they were caused by the same event, or how does a probe end up with such a plethora of issues?

@MoraFermi Жыл бұрын

It could have been an ESD event on that data line -- that would definitely destroy both the resistor and the cpu, potentially the negative voltage regulator too, depending on how things are connected..

@Tesla811a Жыл бұрын

The linear regulator is skewed on its pads and looks like its been reworked when you first showed it. Is that some non-linear video editing or had someone else worked on the probe before you bought it? Surprising it had so many issues.

@younesthabet Жыл бұрын

I never knew that resistors could be the source of trouble in a repair ..

@0xbenedikt Жыл бұрын

When he identified the processor as the issue, I expected him to give up and throw it away as I certainly would not have expected him to have access to the firmware. If it was me, I'd then either have salvaged the processor from another dead unit or used this unit for spares.

@iamgodlewski Жыл бұрын

@Shahriar For your FLIR thermal imager here, did you use the FLIR macro lens or one of the regular lenses (24/48 fov)? Image looks super sharp and in focus from up close! Usually from this close the regular lenses lose focus quick. Curious to know, thanks.

@musicforsoul3324 Жыл бұрын

I wonder how resistor for data lines could fail

@andymouse Жыл бұрын

I have no idea but any instrument that works at 6Kv means it could be anything ! 😂

@CNe7532294 Жыл бұрын

I can't help but notice how that cap with 4 ohms across it is slightly crooked and has an extra bit of solder. Did it get that hot in there at some point with its failure or is that part of the editing? (was soldered for testing in a later jump-cut).

@shams350z Жыл бұрын

Weird question but if I want to learn more about these symmetrical power supplies for op amps where should I look ? I tried googling symmetrical supplies but didn't get that much helpful links. Thank you.

@xDevscom_EE Жыл бұрын

Neat. I also scored another HVDC probe from this series, but haven't looked at it yet.

@younesthabet Жыл бұрын

whats the purpose of measuring the resistance of a capacitor?

@leocurious9919 Жыл бұрын

How to fix (or know if its a SW/HW fault) a µC when you dont have the firmware? The obvious answer seems to be... you dont. But you got the FM for such specific µCs, so... I have some hope.

@antoniocarlosmaranhao2368 Жыл бұрын

hello friend if it is possible I would like some help I have an hp agilent e8285a service monitor it is giving several error messages and version a.02.04 has already been installed do you have a procedure for me to be able to do a new installation of the software I am grateful for the help

@REALIVH Жыл бұрын

offtopic why does your channel not have a Verified mark when you have over 100k subscribers? like all others in electronic have

@stargazer7644 Жыл бұрын

It has a verified mark

@REALIVH Жыл бұрын

@@stargazer7644 odd it did not show last time I was here not even in the featured video but it does now

@stargazer7644 Жыл бұрын

@@REALIVH The wonders of youtube

@shazam6274 Жыл бұрын

Why on earth would anyone spend all this time and effort to fix a 'scope probe? Oh, ...$4,300! I keep forgetting that many Tek probes cost way more than most 'scopes 😳.