This was a broken scope considered beyond worth to repair by service, but I got it working again… (white tape that holds jumper wire going to display connector).
Thank you for service manuals in Internet. Google search and YouTube are repair hacker’s friend.
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9 Comments
Tomi Engdahl says:
Fixing a broken CCFL Backlight
http://hackaday.com/2016/06/10/fixing-a-broken-ccfl-backlight/
When you work at Tektronix and they make a difficult to refuse offer for their ‘scopes, you obviously grab it.
Jason Milldrum] got his unit before cheaper, and better ‘scopes appeared on the market. It served him well for quite a long time. But keeping it switched on all the time took a toll, and eventually the CCFL backlight failed. Here’s how he replaced the CCFL back light with a strip of LED’s and revived the instrument.
Searching for an original replacement CCFL backlight didn’t turn up anything – it had been obsoleted long back.
the CCFL can be replaced by a thin strip of SMD LEDs powered by a DC-DC converter.
The original DC-DC converter supplied along with his LED strip needed a 12V input, which was not available on the TDS1012.
TDS1012 LED Backlight Retrofit
http://nt7s.com/2016/05/tds1012-led-backlight-retrofit/
Tomi Engdahl says:
EEVblog #690 – TDS220 Oscilloscope Autopsy
https://www.youtube.com/watch?v=VZCokbsTwmQ
Tomi Engdahl says:
EEVblog #690 – TDS220 Oscilloscope Autopsy
https://archive.org/details/EEVblog-188_20141207
Dave dissects and then powers up the Tektronix TDS220 oscilloscope used in the Mud Run. Did it survive?
Tomi Engdahl says:
Replacement knows
https://www.ebay.ca/itm/284093420278
Tomi Engdahl says:
https://www.tek.com/en/documents/fact-sheet/tds-210-tds-220-fact-sheet
Tomi Engdahl says:
GPIB TO USB, WITH A PYTHON API
https://hackaday.com/2014/05/09/gpib-to-usb-with-a-python-api/
https://www.eevblog.com/forum/projects/$20-gpib-project/
https://github.com/xyphro/UsbGpib
Tomi Engdahl says:
https://www.eevblog.com/forum/repair/tektronix-tds210-repair-oscillator-help-needed/
Tomi Engdahl says:
https://w140.com/tekwiki/wiki/TDS220
Tomi Engdahl says:
https://w140.com/tekwiki/wiki/2235
https://w140.com/tekwiki/wiki/TDS220