Author Topic: Tektronix THS7xxx Scope Hack/Teardown/Discussion - FW 1.16 found  (Read 73794 times)

0 Members and 2 Guests are viewing this topic.

Offline harrimansat

  • Regular Contributor
  • *
  • Posts: 83
Hi folks,

I have two questions:

Is posible to modify a 730A to work with the options of the 720P with the resistors mod?

This version of wavestar will work with the THS series?

https://www.tek.com/oscilloscope/tds510a-software/wavestar-oscilloscopes

Thanks
Regards
 

Offline mk_

  • Regular Contributor
  • *
  • Posts: 172
  • Country: at

This version of wavestar will work with the THS series?

https://www.tek.com/oscilloscope/tds510a-software/wavestar-oscilloscopes


as the THS-Series is not listed I thnk it will not work with the SW
 

Offline harrimansat

  • Regular Contributor
  • *
  • Posts: 83

This version of wavestar will work with the THS series?

https://www.tek.com/oscilloscope/tds510a-software/wavestar-oscilloscopes


as the THS-Series is not listed I thnk it will not work with the SW

It works!!!! but only a 9600, at others speeds it hangs, I have tested 2 serial cables
« Last Edit: May 25, 2019, 10:08:03 pm by harrimansat »
 

Offline djnz

  • Regular Contributor
  • *
  • Posts: 163
  • Country: 00
I have saved images from my THS720A to my laptop at 38400 baud rate using a python script that I either wrote myself or found and modified (I forgot what exactly had happened).

See https://www.eevblog.com/forum/testgear/tek-ths720a-portable-scope-teardowndiscussion/msg1108612/#msg1108612 for details.
 
The following users thanked this post: harrimansat

Offline HighVoltage

  • Super Contributor
  • ***
  • Posts: 4299
  • Country: de
I posted the WinTek32 software before:

https://www.eevblog.com/forum/testgear/tek-ths720a-portable-scope-teardowndiscussion/msg700940/#msg700940

For screen captures, it works really well.
There are 3 kinds of people in this world, those who can count and those who can not.
 
The following users thanked this post: harrimansat

Offline yaromka

  • Contributor
  • Posts: 6
  • Country: ua
Hi all, that is 1.16 FW full flash from my ths720a.
 
The following users thanked this post: BravoV, Zucca, z01z, HighVoltage, TurboTom, harrimansat

Offline Zucca

  • Supporter
  • ****
  • Posts: 2166
  • Country: it
  • EE meid in Itali
Thanks yaromka,

I hope to start to work again on this projekt as soon as possible.
This good new is also on the first page.

How did you read out the FW?
Can't know what you don't love. St. Augustine
Can't love what you don't know. Zucca
 
The following users thanked this post: harrimansat

Offline yaromka

  • Contributor
  • Posts: 6
  • Country: ua
Re: Tektronix THS7xxx Scope Hack/Teardown/Discussion - FW 1.16 found
« Reply #282 on: August 13, 2019, 11:30:46 am »
You are welcome. I hope that it will be useful. I just removed IC from board and read data with TL866+.
 

Offline BravoV

  • Super Contributor
  • ***
  • Posts: 6253
  • Country: 00
Re: Tektronix THS7xxx Scope Hack/Teardown/Discussion - FW 1.16 found
« Reply #283 on: August 16, 2019, 02:46:32 am »
As we have the latest firmware now, thanks to yaromka.  :-+

The question is how do we upgrade it, without re-calibration if possible ?

Offline rvalente

  • Regular Contributor
  • *
  • Posts: 204
  • Country: br
Re: Tektronix THS7xxx Scope Hack/Teardown/Discussion - FW 1.16 found
« Reply #284 on: September 16, 2019, 07:21:06 pm »
This is not broken, the polarizer is soooo burnt that looks bronken

Mine is just like yours, got replace this polarizer and sabe this lcd
 

Offline rvalente

  • Regular Contributor
  • *
  • Posts: 204
  • Country: br
Re: Tektronix THS7xxx Scope Hack/Teardown/Discussion - FW 1.16 found
« Reply #285 on: October 11, 2019, 06:19:12 pm »
Fixed my THS720P screen, these are the steps:

First: buy the polarizer film replacement,  from ebay or any local source

Take the scope apart
Disassembly the LM32P10 LCD, thake the glass + PCB out.
Pull out the polarizers
Clean the residual glue/polarizer, tried many solvents, gasoline worked the best
Clean the fingerprints with rubbing alcohol

Try you polarizer in various angles, check what angle gets the best screen contrast (change the screen contrast on menu also)

Cut the polarizer with a scalpel, a little bigger them the display, scissors will crack the polarizer film.
Trim the excess with the scalpel.

Do a better job than I did, cleaning the back light diffuser.

There you have-it, a working screen for low cost.
 
« Last Edit: October 11, 2019, 06:21:24 pm by rvalente »
 

Offline rvalente

  • Regular Contributor
  • *
  • Posts: 204
  • Country: br
Re: Tektronix THS7xxx Scope Hack/Teardown/Discussion - FW 1.16 found
« Reply #286 on: October 11, 2019, 06:20:03 pm »
My backlight is very dimmed, I believe the lamp is showing its age. Does anyone have replaced the lamp or added a LED upgrade?
« Last Edit: October 12, 2019, 11:42:21 am by rvalente »
 

Offline Tiberius1

  • Newbie
  • Posts: 1
  • Country: au
Re: Tektronix THS7xxx Scope Hack/Teardown/Discussion - FW 1.16 found
« Reply #287 on: November 14, 2019, 03:47:48 am »
Hi Zucca
i have the std ths720 and it has a power supply issue - always draws current around 300ma when off and no batteries
CPU is warm which indicates the unit is on in some way.
The schematics i found on this site seem to be a little different in the power supply section.
My unit seems to be an older version.
Are these units different throughout the models and age of the units in regards to the supply section?
Would anyone have a copy of an older version if available?
Thanks in advance
 

Offline Zucca

  • Supporter
  • ****
  • Posts: 2166
  • Country: it
  • EE meid in Itali
Re: Tektronix THS7xxx Scope Hack/Teardown/Discussion - FW 1.16 found
« Reply #288 on: November 14, 2019, 10:28:36 am »
If the voltage rails are ok why do you suspect the power supply?
If there is too much current then there is a low impedence path somewhere outside the power supply.

does the unit works properly?

We habe only one schematic version available unfortunately.
Can't know what you don't love. St. Augustine
Can't love what you don't know. Zucca
 


Share me

Digg  Facebook  SlashDot  Delicious  Technorati  Twitter  Google  Yahoo
Smf