Problems with built in batteries of a Tektronix 11801 Sampling Oscilloscope - Page 1
Forum section: electronics / repair

author: Physikfan
author_rank: Regular Contributor
timestamp: September 13, 2017, 08:29:47 am
content: I have a Tektronix 11801 sampling oscilloscope, which does not start after switching on because of problems with built in batteries.Please, are there experiences with such problems within this forum?

author: tggzzz
author_rank: Super Contributor
timestamp: September 13, 2017, 09:59:03 am
content: Which batteries? What makes you think it is the batteries? Have you looked at the operator and service manuals? What have you found by googling?The more information you give, the more likely you are to find someone that can help.Also, try the Yahoo TekScopes group.

author: Physikfan
author_rank: Regular Contributor
timestamp: September 18, 2017, 10:40:48 am
content: Hi tggzzzIf you get error messages like this E5622, should you change the two Dallas NVRAMs against new ones?Please these are my questions:1. Is somebody here who has opened already an oscillocope like the Tek 11801C?2. Is somebody here who has changed already the two Dallas NVRAMs against new ones?3. And please, could I get pictures of these NVRAMs?The service manual Tek 11801C unfortunately only gives this information:4. Does somebody have more information about these special ICs?Best regardsPhysikfan

author: Physikfan
author_rank: Regular Contributor
timestamp: September 19, 2017, 10:49:01 am
content: HiI got the information of an existing file:"11801 and CSA803_TB_error 5622 repair.zip"Which could possibly help to solve the problem.This file should be available:"You can access this file at the URL:http://groups.yahoo.com/group/TekScopes/files/11801%20and%20CSA803_TB_error%205622%20repair.zip"Unfortunately I have no idea how to get access to this file.Please, could somebody help me?RegardsPhysikfan

author: tggzzz
author_rank: Super Contributor
timestamp: September 19, 2017, 02:07:53 pm
content: https://groups.yahoo.com/neo/groups/TekScopes/infoClick "+ Join Groups"

author: Physikfan
author_rank: Regular Contributor
timestamp: September 19, 2017, 05:18:36 pm
content: Hi tggzzzThanks for your answer."https://groups.yahoo.com/neo/groups/TekScopes/infoClick "+ Join Groups"Unfortunately I do not get the "+ Join Groups" buttonat the page"https://groups.yahoo.com/neo/groups/TekScopes/info"RegardsPhysikfan

author: tggzzz
author_rank: Super Contributor
timestamp: September 19, 2017, 05:57:09 pm
content: Quote from: Physikfan on September 19, 2017, 05:18:36 pmYou must be using a very peculiar browser; it works in Firefox, Chromium and Opera.

author: Physikfan
author_rank: Regular Contributor
timestamp: September 21, 2017, 10:02:31 am
content: Hi tggzzzThank you for your comments regarding the error messages E5622 and E5322:With the help of these two papers:"Fixing a 50GHz Sampling Scope (Tektronix CSA803), posted by February 26, 2014 by xellers."https://xellers.wordpress.com/2014/02/2%20...%20ix-csa803 /and"Tek 11801 Timebase Errors by John Larkin, Highland Technology Inc, jjlarkin@highlandtechnology.com11801 and CSA803_TB_error 5622 repair "had a friend of mine (professional electronics engineer) and me after 3 hours work success with a Tek 11801A:chipsetOne of the error messages:Successful repair:Best regardsPhysikfan

author: tggzzz
author_rank: Super Contributor
timestamp: September 21, 2017, 10:17:20 am
content: Well done!