Retro Tech & Electronics | Dyson V11 Torque drive Head repair - When it stops spinning and gets stuck @retrotechandelectronics | Uploaded September 2019 | Updated October 2024, 16 hours ago.
Today was the unboxing and testing on the Dyson V11 Torque Drive, the newest and (at the time of this writing) the most expensive in the Dyson fleet of vacuum cleaners.
In the first magical moment of the first run with the torque drive we are riddled with disappointment. The brush did not spin. I found this most surprising and upon closer inspection confirmed that it was indeed stuck. Removing the brush from the slot revealed that a piece within the unit was broken a round ring, later found in Amazon review circles as the "shipping ring" or the "ring of death" I didn't know at the time, but was forced to pack up the whole unit at the store and return it for another.
Coming back with the second unit from another store location (same store) and the SAME piece is broken. I search reviews all over for this issue and found nothing, till I looked in Amazon, and that is where I heard all of the complaints. Armed with the info I called Dyson, who now after several months admits there is a defect and offers a replacement for this, I was able to procure one free of charge, and as demonstrated in the video, repair the unit I had by removing the useless ring and returning the unit to working order. Problem Solved!
I quickly take a look at the second head when it arrives and confirm that it has the same part inside that the old one had, though it may be from a different material.
The wife conducted a retest and was satisfied, note that all tests in the video are done with the repaired head, not the replacement. We start where we left off with initial testing of the unit on both carpet and bare floor, this carpet we just got and has a fair amount of dust from the warehouse, a good candidate, we can see and hear the unit shift automatically between mediums. Emptying proved to be little hassle. You need only consider where to put the attachment down.
We then use the car as a good example to demonstrate the different attachments. Car carpet is always a challenge to clean with both texture and contour. We try all attachments, for better or worse to find what worked best and was safe for the different materials.
If you're willing to spend the cash and you like clean floors and cars...and fans....and electronics.....and computers the V11 is a winner.
technocoma.blogspot.com
#dyson #v11 #torquedrive
Today was the unboxing and testing on the Dyson V11 Torque Drive, the newest and (at the time of this writing) the most expensive in the Dyson fleet of vacuum cleaners.
In the first magical moment of the first run with the torque drive we are riddled with disappointment. The brush did not spin. I found this most surprising and upon closer inspection confirmed that it was indeed stuck. Removing the brush from the slot revealed that a piece within the unit was broken a round ring, later found in Amazon review circles as the "shipping ring" or the "ring of death" I didn't know at the time, but was forced to pack up the whole unit at the store and return it for another.
Coming back with the second unit from another store location (same store) and the SAME piece is broken. I search reviews all over for this issue and found nothing, till I looked in Amazon, and that is where I heard all of the complaints. Armed with the info I called Dyson, who now after several months admits there is a defect and offers a replacement for this, I was able to procure one free of charge, and as demonstrated in the video, repair the unit I had by removing the useless ring and returning the unit to working order. Problem Solved!
I quickly take a look at the second head when it arrives and confirm that it has the same part inside that the old one had, though it may be from a different material.
The wife conducted a retest and was satisfied, note that all tests in the video are done with the repaired head, not the replacement. We start where we left off with initial testing of the unit on both carpet and bare floor, this carpet we just got and has a fair amount of dust from the warehouse, a good candidate, we can see and hear the unit shift automatically between mediums. Emptying proved to be little hassle. You need only consider where to put the attachment down.
We then use the car as a good example to demonstrate the different attachments. Car carpet is always a challenge to clean with both texture and contour. We try all attachments, for better or worse to find what worked best and was safe for the different materials.
If you're willing to spend the cash and you like clean floors and cars...and fans....and electronics.....and computers the V11 is a winner.
technocoma.blogspot.com
#dyson #v11 #torquedrive
![Sears Silvertone Twin Twelve 1484 Major Restoration Project [4/6]](https://i.ytimg.com/vi/gMNh0eFGOnI/hqdefault.jpg "Sears Silvertone Twin Twelve 1484 Major Restoration Project [4/6]
With this the fourth part in the series , we continue the troubleshooting with the 6FQ7 phase inverter section. A method employed was simply disconnecting the phase inverter section from the finals physically and ruling out that section. With this the final section was quickly ruled out as the culprit. Interesting point, given the different output and no tube in the socket, a passible component must be producing the issue!!!!
I quickly learn that we have some considerably STRANGE resistor issues throughout!. Resistors out of spec are simply replaced, thats a no brainer. and i got lucky too because that fixed one of the first issues in the amp. Though its improving, there are so many artifacts, thee are other things too.
At this point I bust out the T4 Heathkit signal tracer. With this I can hear the clicking, and the hum and the his and everything, But its noise mode that really finds things like this. Turns out its a noisy resistor causing this one. Even removed we can hear the resistor cracking in the T4 in noise more. One less noise in the amp. but still work to do, but the phase inverter is finally cleared.
Working back to the pre-amp section, there is no shortage of problems either. Though, voltage measurements show that there is more resistor changes to be done, identifying complete failures in circuit.
Even with the voltages finally within reason, I continue to find noisy resistors, so I continue swaps just for that reason alone.
An added bonus is a tube socket pin repair I did, as I managed to break one off. Luckily I keep spare parts for this occasion.
A function test is done to include reverb, tremolo and also.... AM radio.... Yes.... AM radio
Another round of voltage re-measurements are conducted and shown to be good, except for a few minor changes to do.
We get the amp sitting straight on the bench and begin some signal testing one issue I found was an oscillation in the reverb section i could not initially identify that was tied into the treble somehow. I get it back in test position to validate the feedback. Turns out, I needed a smaller test speaker when the amp is out of cabinet. No trouble found. The Crapola mini test speaker validated this. Including my no frills Peter Framption impression.
A last walkthrough is done with the T4, and the output coupled to a dummyload.
A last artifact lead to an interesting event, finding a bad connection during more resistor testing, turns out it wasnt the resistor, but its solder to the phase inverter. Test with the T4 shows no hum at the 6AU7, and a test on the speaker sounds good.
Not a single artifact is heard through the speaker on a shorted input with the volume turned up. That completes this portion of the project. Tune in for the next video in the series.
#retrotechandelectronics #vintagetubeamprepairs")
