Author Topic: Test Equipment Anonymous (TEA) group therapy thread (Read 18556343 times)

Cerebus · « **Reply #53525 on:** March 25, 2020, 04:33:48 pm »

Quote from: mansaxel on March 25, 2020, 11:08:54 am

Yes, I'll keep the thread posted. Status right now is "bouncing around in Memphis".

As sung by Cher?

AVGresponding · « **Reply #53526 on:** March 25, 2020, 04:44:44 pm »

Quote from: Ice-Tea on March 25, 2020, 10:05:19 am

I'm guessing this isn't great...
(Attachment Link)
Nope, not great at all...
(Attachment Link)

Is this another case of life following TEA discussions..?

That LM323 is a 5V linear reg iirc, has it failed short and assassinated the transformer?

mnementh · « **Reply #53527 on:** March 25, 2020, 04:49:44 pm »

Quote from: Cerebus on March 25, 2020, 03:42:46 am

Did somebody leave the childproof cap off the Dragon's happy juice?

Yes.

mnem
"Oh look... they left the cap off yours too..." *gurkle-gurkle-gurkle*

Specmaster · « **Reply #53528 on:** March 25, 2020, 04:57:51 pm »

Quote from: med6753 on March 25, 2020, 03:17:03 pm

Follow up plans: The cleaning and removal of stickers is done. Both top and bottom panels are going to get painted. Get rid of that faded beige.

The power supply will be re-capped. Once that's done and the verified investigate some minor issues noted on the 100VDC and 1000VDC ranges.

I don't think that you're going to have much of a problem with contact issues on those cards as they are similar if not the same as those used on PC's. Not sure about the large cap in the power supply section but it does seem to be blown slightly to me in the photo. IIRC you will need to withdraw all the cards in order to gain access to power supply section in order to recap it anyway.
When those panels emerge from the painting process, will they be blue by any chance?

mnementh · « **Reply #53529 on:** March 25, 2020, 05:19:47 pm »

Quote from: Cerebus on March 25, 2020, 04:33:48 pm

Quote from: mansaxel on March 25, 2020, 11:08:54 am
Yes, I'll keep the thread posted. Status right now is "bouncing around in Memphis".
As sung by Cher?

No. As sung by ME.

mnem
*~hic~*

AVGresponding · « **Reply #53530 on:** March 25, 2020, 05:21:52 pm »

Quote from: Specmaster on March 25, 2020, 04:57:51 pm

Not sure about the large cap in the power supply section but it does seem to be blown slightly to me in the photo.

That's what it looks like to me too; my 8840 had a similarly domed reservoir cap, and it did test a bit high on capacitance and esr, when I'd swapped it out.

mnementh · « **Reply #53531 on:** March 25, 2020, 05:24:02 pm »

Quote from: Specmaster on March 25, 2020, 04:57:51 pm

Quote from: med6753 on March 25, 2020, 03:17:03 pm
Follow up plans: The cleaning and removal of stickers is done. Both top and bottom panels are going to get painted. Get rid of that faded beige.

The power supply will be re-capped. Once that's done and the verified investigate some minor issues noted on the 100VDC and 1000VDC ranges.

I don't think that you're going to have much of a problem with contact issues on those cards as they are similar if not the same as those used on PC's. Not sure about the large cap in the power supply section but it does seem to be blown slightly to me in the photo. IIRC you will need to withdraw all the cards in order to gain access to power supply section in order to recap it anyway.
When those panels emerge from the painting process, will they be blue by any chance?

I vote puh-nurrrple...

mnem
*snorrrrt* Now where did I put that dance-pole...?

mansaxel · « **Reply #53532 on:** March 25, 2020, 05:26:49 pm »

Quote from: Cerebus on March 25, 2020, 04:33:48 pm

Quote from: mansaxel on March 25, 2020, 11:08:54 am
Yes, I'll keep the thread posted. Status right now is "bouncing around in Memphis".

As sung by Cher?

For instance. A lot of other music was made and/or recorded in Memphis, like a lot of the the Bar-Kays' catalogue. Slightly bouncier.

Cerebus · « **Reply #53533 on:** March 25, 2020, 05:28:04 pm »

Can somebody please get the top back on that bottle, and can the rest of you check the fire extinguishers, hoses, and make sure that someone's swept up all the sawdust and replaced it with sand?

Cerebus · « **Reply #53534 on:** March 25, 2020, 05:29:31 pm »

And, no, don't let him get that pole up. Have you lot forgotten what happened last time?

med6753 · « **Reply #53535 on:** March 25, 2020, 05:34:10 pm »

Quote from: AVGresponding on March 25, 2020, 05:21:52 pm

Quote from: Specmaster on March 25, 2020, 04:57:51 pm
Not sure about the large cap in the power supply section but it does seem to be blown slightly to me in the photo.

That's what it looks like to me too; my 8840 had a similarly domed reservoir cap, and it did test a bit high on capacitance and esr, when I'd swapped it out.

Yes, that 15000uf capacitor does not look too healthy. I've already inventoried the replacement caps required and the order will be submitted. And from studying the mechanical parts diagrams it appears the entire PSU pulls out from the back which should make the work a lot easier.

Ice-Tea · « **Reply #53536 on:** March 25, 2020, 05:39:22 pm »

Quote from: AVGresponding on March 25, 2020, 04:44:44 pm

That LM323 is a 5V linear reg iirc, has it failed short and assassinated the transformer? [/color][/b]

Probably the +15V section that went out because the fan went and then, well..

mnementh · « **Reply #53537 on:** March 25, 2020, 05:49:17 pm »

Quote from: Cerebus on March 25, 2020, 05:29:31 pm

And, no, don't let him get that pole up. Have you lot forgotten what happened last time?

Whaaaat...? I just had a few friends over...

mnem
Fine. I'll just sit in the corner here and count my scales... *humph*

Saskia · « **Reply #53538 on:** March 25, 2020, 05:52:21 pm »

Quote from: Specmaster on March 24, 2020, 11:32:50 pm

Quote from: Saskia on March 24, 2020, 08:53:38 pm

Now I am building a NAS Volume with 4 instead of the 5 intended drives and a few TB less than intended. Will probably run another day to verify the volume ...

Cold symptoms. Headache, cough. Even though I have been in pretty strong self isolation. No fever though.
rats.
Lets hope that all you have is a common cold

most likely. it's still the scare as hubby has to have limited customer contact as one of those interdiction officers ... while I am working my butts of to keep my stuff in our pharma plant running. With the quarantine and our work from home directive my small internal translation system has seen 840 thousand accesses in just a month. that's a 15 fold increase from previous levels. It seems to be quite vital for efficient cross border communications ...

Anyway.

WD / HGST has escalated my case and they are now lookin for the missing hard drive. My NAS estimates about a day to move those mere 5TB of data from one stripe set to the other. and I need to call Canon to fix the lens that went down at Ford Island

Poor 24-105 IS STM ...

Cerebus · « **Reply #53539 on:** March 25, 2020, 05:53:21 pm »

Quote from: mnementh on March 25, 2020, 05:49:17 pm

Whaaaat...? I just had a few friends over...

And Four squad cars, three fire engines, animal control, two ambulances, the vet, seven delivery girls from Vinny's topless pizza and the plumber.

Saskia · « **Reply #53540 on:** March 25, 2020, 05:56:33 pm »

Quote from: mnementh on March 25, 2020, 05:49:17 pm

Quote from: Cerebus on March 25, 2020, 05:29:31 pm
And, no, don't let him get that pole up. Have you lot forgotten what happened last time?

Whaaaat...? I just had a few friends over...

mnem
Fine. I'll just sit in the corner here and count my scales.. *humph*

Here is a dance video for you to optimize your dragon steps:

and here another ...

bd139 · « **Reply #53541 on:** March 25, 2020, 06:00:33 pm »

Quote from: mnementh on March 25, 2020, 05:49:17 pm

Quote from: Cerebus on March 25, 2020, 05:29:31 pm
And, no, don't let him get that pole up. Have you lot forgotten what happened last time?

Whaaaat...? I just had a few friends over...

mnem
Fine. I'll just sit in the corner here and count my scales.. *humph*

Is this one of your friends? (at an old haunt of mine)

AVGresponding · « **Reply #53542 on:** March 25, 2020, 06:02:21 pm »

The boy's got some moves:

Though his only competition in the Big Snow seems to be:

mnementh · « **Reply #53543 on:** March 25, 2020, 06:34:15 pm »

Quote from: Cerebus on March 25, 2020, 05:53:21 pm

Quote from: mnementh on March 25, 2020, 05:49:17 pm
Whaaaat...? I just had a few friends over...

And Four squad cars, three fire engines, animal control, two ambulances, the vet, seven delivery girls from Vinny's topless pizza and the plumber.

Yeah... a nice quiet party with a few friends...

mnem
I mean, sure the pole-dancing fire...persons... caused a bit of a stir, but they DID sell a LOT of calendars.

bd139 · « **Reply #53544 on:** March 25, 2020, 06:38:20 pm »

Appeared on HN... of interest to TEA folk I am sure

mnementh · « **Reply #53545 on:** March 25, 2020, 06:40:32 pm »

Quote from: bd139 on March 25, 2020, 06:00:33 pm

Quote from: mnementh on March 25, 2020, 05:49:17 pm
Quote from: Cerebus on March 25, 2020, 05:29:31 pm
And, no, don't let him get that pole up. Have you lot forgotten what happened last time?

Whaaaat...? I just had a few friends over...
Is this one of your friends? (at an old haunt of mine)

We are EVERYWHERE.

mnem
y'all just don't notice. *fnord*

mnementh · « **Reply #53546 on:** March 25, 2020, 06:57:29 pm »

Just for you, Phil:

I usually WILL NOT link to *grrrr* portrait aspect video for just this reason; but...

mnem

Saskia · « **Reply #53547 on:** March 25, 2020, 07:07:53 pm »

Quote from: bd139 on March 25, 2020, 06:38:20 pm

Appeared on HN... of interest to TEA folk I am sure
Quote
I am looking for an interferometer ...

mnementh · « **Reply #53548 on:** March 25, 2020, 07:22:46 pm »

Quote from: capt bullshot on March 25, 2020, 07:19:18 am

Quote from: Neomys Sapiens on March 25, 2020, 03:51:03 am
My experiences were similar, but more costly, as I fell to the hype of it's big brother, the LM338. I got my fingers on it aged 15, wayyy before I understood thermal design. Whoa! 5A from 1.5 to 37V, and protected against everything. And in an early bout of entrepreneurship, I even sold one such unbuilt PS to my chemistry teacher. Those things cost about 30.- DM at that time. Oh my, that got ugly fast. They cooked off before I could even touch a control. Days of shame...
Then, much later, I understood what happened. I called myself a fool and thought that I am done with that topic. Until the Internet came. And with it, the incredulous tales of people which were doing exactly the same thing all over again.

That's just the way "real" engineers learned their profession. Nothing to compare with today's youth, just copying some shit from the internet (OK, I had a book), not knowing what they do (OK, we didn't either) and then complaining on the internet (Hmm, we couldn't for some reason I can't remember ). So we had to understand the stuff to be successful, while today they blame the supplier ...

Y'all are fuckin' bass-tards, you know that?

I ordered up a bunch of fans to quiet down the 3DP; chose 12V ones as they were in-stock on Amazon & 1/3-1/2 the price of equivalent 24V ones via slow-boat-from China. I WAS just going to epoxy-blob a L78M12 on each fan as I've done oodles of times before... takes about 5 minutes and I have oodles. Now you got me building a BOM with one of these, JST-PH pigtails, and even considering a perfboard with jumper blocks to go inline with the controller board so I can easily switch devices in/out of circuit as the configuration evolves.

mnem
I hate you all. Cordially.

bd139 · « **Reply #53549 on:** March 25, 2020, 07:32:44 pm »

Ahh the next trap

http://k6jca.blogspot.com/2018/02/counterfeit-lm2596-regulator-boards.html


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Author Topic: Test Equipment Anonymous (TEA) group therapy thread (Read 18556343 times)

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