tek P6243 Probe - Page 1
Forum section: electronics / repair

author: kjk24
author_rank: Regular Contributor
timestamp: September 07, 2019, 07:03:19 pm
content: Has someone a picture of a p6243 tip or the connection piout where to solder the black, white and the red wire ?Best regardsKai

author: kjk24
author_rank: Regular Contributor
timestamp: September 17, 2019, 05:36:40 pm
content: looks like the P6245 is nearly the same, without aprox. the bias wire.i will try it.yes you are right, thanks to doc.xdevs.com for the hints and the Fotos of the P6245

author: kjk24
author_rank: Regular Contributor
timestamp: September 20, 2019, 06:19:07 pm
content: the probe works,white is -5Vred is +5Vwhats the metall rubber thing between the contact pin and the probe pcb ?i know it from another tek probe, there is some between.who knows it please let me know.added a Foto of a conductive rubber stuff thing.

author: TiN
author_rank: Super Contributor
timestamp: September 21, 2019, 04:29:47 am
content: OP forgot to give credits tosource of P6245photos.

author: 3g57
author_rank: Regular Contributor
timestamp: October 16, 2020, 09:36:26 am
content: Hi there,I uploading some photos of the Tek P6243.If you are interested in this I can give guide who to disassemble Probe and Head step by step.Please leave a comments or likes and I'll prepare info.Best regards,3G57

author: Tantratron
author_rank: Frequent Contributor
timestamp: July 29, 2021, 04:42:20 pm
content: Hello,Attached picture of 4 probes I've purchased lately where my questions are about (1) how to remove the grey plastic hosting the hybrid (2) where to find replacement of this grey plastic and (3) how to remove the transparent tip plastic or grey metal housing.Two probes as you can see have partial grey plastic brokenAnother probe seems to have a bad contact inside its metal tip, sometimes it works good and sometimes no signal where I obtain the signal by pushing laterally the end tipMore generally, does these tektronix P6243 are reliable, good in performance and worth repair ?I notice when using them the plastic grey housing will heat a bit, I guess the internal hybrids got hot hence will deteriorate or crack the plastic. No idea if this is normal, alarming and how to fix.Thank you in advance, Albert

author: veegee
author_rank: Newbie
timestamp: April 20, 2023, 01:22:11 am
content: Yes, they tend to get warm while in use. That's normal.I bought one with the clear plastic tip and metal insert broken, but otherwise working well. Tektronix doesn't have a replacement part number for this. Any ideas other than making my own probe tip holder insert?

author: calibrationfixture
author_rank: Regular Contributor
timestamp: May 09, 2024, 05:43:25 am
content: Hi to all,Received recently a batch of defective P6243 Probes. A few (with the transparent tip covers) show the aforementioned absence of tip contact, resulting in a baseline with spikes when the Scope (TDS7404B) its Probe Compensation Signal is used. The only two with black tip covers passes these square waves but their amplitudes are 5 times the value as it should be. Thus 5V instead of 1V. Probe Cal also fails. Scaling of the Probe (maximum sensitivity 20 mV/Div) and on screen Dynamic Range (+ and - 8V) are correct. Any clues?Calibrationfixture

author: Rafiki
author_rank: Contributor
timestamp: May 09, 2024, 08:21:01 am
content: Quote from: calibrationfixture on May 09, 2024, 05:43:25 amI've the same problem with my P6245. Signal shape is also not perfect (lower slew rate and overshoot). I don't know how to remove the metal cover so didn't look inside.

author: calibrationfixture
author_rank: Regular Contributor
timestamp: May 11, 2024, 06:09:42 am
content: Hi Rafiki,Quote from: Rafiki on May 09, 2024, 08:21:01 amSee:https://www.eevblog.com/forum/repair/tektronix-p6245-probe-repair/First Post in Thread.And:https://www.eevblog.com/forum/testgear/tektronix-p6245-active-probe-issues-with-config-data/For EEPROM Dump e.a:Calibrationfixture