Re: TDS 754A Problem
Thanks everyone for your suggestions!? I ordered some Neolube to try and fix the keypads. I have looked around for schematics for this scope, but could only find them for the TDS520.? Does anyone
By
Brian, K0IH
·
#16527
·
|
Re: Tektronix Series 125 - f1.4 - 1:1 Mag.
Looks like a C31 scope camera lens. Want a similar one for $15+shipping? -- John
By
John Griessen <john@...>
·
#16526
·
|
Tektronix Series 125 - f1.4 - 1:1 Mag.
An interesting item on eBay: https://www.ebay.com/itm/266572090307
By
Philip Freidin
·
#16525
·
|
Re: TDS 754A Problem
If it is truely a D model, you got a free upgrade. I assume the acquisition board may have been replaced at some point. I've had good success repairing these buttons using the 'electric paint' from
By
Jared Cabot
·
#16524
·
|
Re: TDS 754A Problem
I have resurrected these elastomer keypads by cleaning them and the PCB with 99% IPA and then recoating the carbon pads with 2 to three coats of Neolube No.2 colloidal graphite in an alcohol carrier.
By
Sam Reaves
·
#16523
·
|
Re: TDS 754A Problem
You don't need to press the clear button. It switched to "normal" mode after a few seconds automatically. So this is no problem. I had a 754D with a few buttons not working. In my case it was solved
By
Jorge Gonzalez
·
#16522
·
|
Re: TDS 754A Problem
Sounds like it might have been modified to power up automatically like that, for use as part of some other system. In Truth...? Just guessing. Dave B. -- Sent from a MicroSoft free zone:
By
Dave_G0WBX
·
#16521
·
|
TDS 754A Problem
I purchased a TDS754A on Ebay.? After receiving it I plugged it in and the scope powered up without pressing the ON/STBY button. The scope booted and the power-up self check passed.? It said that
By
Brian, K0IH
·
#16520
·
|
Re: Tek 2335
From? my notes- Do not remember the actual symptom whether just a spot initial turn on then vanished or nothing on the screen..I think it was nothing.....anyway, on my 2335 the issue was on the Z
By
Ren¨¦e
·
#16519
·
|
Re: Tek 2335
Mike, Thank you. If/when I discover the problem, will post resolution here. William, k6whp -------------------- "Cheer up, things could get worse. So I cheered up and things got worse."
By
k6whp
·
#16518
·
|
Re: Tek 2335
Here's the service manual: https://w140.com/tekwiki/images/d/da/070-4116-00.pdf Try the "NO VISIBLE DISPLAY" troubleshooting chart on page 242. Good luck! -Mike
By
Mike Fischbein
·
#16517
·
|
Tek 2335
Sorry for the undisciplined pleas for help but does anyone have any thoughts on a Tek 2335 that powers on and juts displays a spot and no sweep? Just need a suggestion or two to know where to start
By
k6whp
·
#16516
·
|
Re: New group for Yokogawa test gear
I think those are at best only very loosely equivalent models at best as the HP versions had a different layout and some additional/different functions, but at this point anything is better than no
By
Alex
·
#16515
·
|
Re: New group for Yokogawa test gear
I've sent off a message to Yokogawa asking for info on the closely related 7537
By
Jared Cabot
·
#16514
·
|
Re: New group for Yokogawa test gear
Alrighty, final identity crisis I swear... :D To encompass more of the smaller Japanese brands, I've settled finally on this name: /g/Japanese-Test-Equipment Basically, it'll be open
By
Jared Cabot
·
#16513
·
|
Re: New group for Yokogawa test gear
Since you have been able to communicate with Yokogawa directly I wonder if you could ask them if there might be any technical information still available, service manual, or even a plain schematic of
By
Alex
·
#16512
·
|
Re: New group for Yokogawa test gear
Whoops, forgot the new link: /g/Yokogawa-Hioki-Anritsu-Kyoritsu
By
Jared Cabot
·
#16511
·
|
Re: New group for Yokogawa test gear
I have just expanded the scope of the new group to cover Yokogawa, Anritsu, Hioki and Kyoritsu gear. I figure we may as well cover a bunch of the main brands of Japanese equipment in one place. Jared
By
Jared Cabot
·
#16510
·
|
New group for Yokogawa test gear
I've been recently acquiring more Yokogawa test gear and have been talking to Yokogawa to obtain old manuals etc, so I thought maybe I'd make a group to put the info and for others to join in too. I
By
Jared Cabot
·
#16509
·
|
Re: Telethons 2445
Dave,? Hold on I am going to do some pliminary work on the Tek 2445. I am going to try cleaning the switches with Deoxid D5 and then see what my max be is.? Walt? Sent from the all new AOL app for
By
Walt KA2NJF
·
#16508
·
|