Broken Tektronix 2213 - Page 1
Forum section: electronics / testgear

author: nbritton
author_rank: Frequent Contributor
timestamp: November 04, 2015, 01:56:14 am
content: My old Tektronix 2213 fell off the shelf and now it's doing this:

author: tautech
author_rank: Super Contributor
timestamp: November 04, 2015, 05:41:54 am
content: Start with the Tek troubleshooting PDF, you can find a link to it in the sticky in the Repair board.

author: OldSchoolTechCorner
author_rank: Frequent Contributor
timestamp: November 04, 2015, 06:08:57 am
content: I would inspect it first and reseat all cables, especially look at CRT section, remove metal rear cover and make sure connector to CRT neck is seated correctly and didn't break. Check side deflection plates wire to CRT. Be careful with HV supply and discharge capacitors first. Look at PCB for cracks. At least amplifiers seem to work. Could be damage misaligned deflection plates in the CRT

author: mij59
author_rank: Frequent Contributor
timestamp: November 04, 2015, 07:19:58 am
content: Maybe the horizontal mode switch is set to to delayed.

author: tec5c
author_rank: Frequent Contributor
timestamp: November 04, 2015, 07:22:55 am
content: Can you take a photo of the entire front panel please?Need to confirm the settings first before we move to inside the unit.

author: sorenkir
author_rank: Regular Contributor
timestamp: November 04, 2015, 12:22:43 pm
content: Beam finder button stuck ?Michel.

author: dan3460
author_rank: Frequent Contributor
timestamp: November 04, 2015, 03:44:33 pm
content: +1, beam finder. I have seen a few cases that the button work but the inners are stuck.

author: OldSchoolTechCorner
author_rank: Frequent Contributor
timestamp: November 04, 2015, 04:13:26 pm
content: Beam finder button might have got stuck in the process

author: nbritton
author_rank: Frequent Contributor
timestamp: November 04, 2015, 09:22:00 pm
content: Quote from: tec5c on November 04, 2015, 07:22:55 am

author: grumpydoc
author_rank: Super Contributor
timestamp: November 04, 2015, 11:03:10 pm
content: The trace appears to be compressed - the sweep speed is 0.2ms per div and there are two cycles of the 1kHz cal signal visible which would be correct.Does pressing beam find change the display?

author: nbritton
author_rank: Frequent Contributor
timestamp: November 08, 2015, 04:53:55 am
content: Quote from: grumpydoc on November 04, 2015, 11:03:10 pmYes pressing the beam finder button changes the display, pressing the button does what you would expect it to do.

author: dan3460
author_rank: Frequent Contributor
timestamp: November 09, 2015, 02:19:54 pm
content: My suggestion will be to go over the alignment procedure which is detailed in the manual. Maybe start at the horizontal amplifier setting.

author: commongrounder
author_rank: Frequent Contributor
timestamp: November 09, 2015, 02:51:38 pm
content: I wonder if the shock of the fall popped one or more trimmer pot caps. I had that happen to my 2213, spontaneously, a few years ago, just sitting on the bench, so I believe they are fragile. The loose part may not rattle around if it has been captured by a wiring harness. I think there is another thread here where someone has had the same problem (can't put my finger on it at the moment).

author: dan3460
author_rank: Frequent Contributor
timestamp: November 10, 2015, 04:47:37 pm
content: +1 to that. I pulled the vertical amplifier board, turn it upside down and 3 tops of the trimpods fell on the table. I have replaced all them, seem very fragile.

author: Martin.M
author_rank: Frequent Contributor
timestamp: November 10, 2015, 05:04:56 pm
content: when a scope fall down that can easy destroy the CRT.times ago I buyed a Tek222A what was bad handled by the post, the picture was horrible.It was not possible to find any defect part, so the little CRT is gone in the X-RAY to look what`s the matter.Deflection plate !greetingsMartin

author: TrendMend
author_rank: Newbie
timestamp: February 04, 2021, 03:52:05 am
content: Sorry to bring up a very old thread - Just wondering if OP solvedhistheir issue.I am actually facing the same problem on my own 2213 with the horizontal sweep not meeting the edges, then again I just bought it... Will need to start my own repair thread haha.EDIT:Gender neutral fix