Sencore lc 102 repair - Page 1
Forum section: electronics / general

author: Drjaybee
author_rank: Newbie
timestamp: September 20, 2022, 11:51:28 pm
content: Anyone know of someone that knows how to repair an lc-102. In 2019 mine fail to start up. I found an older guy that had done repairs for Sencore. I sent it to him and he started on it and put it to the side waiting for parts. His health would cycle from okay to not good. Well, he died last week and his widow is sending the unrepair back to me. Really would like to find someone that has some experience on this unit. I was told that the problem I have is a real bugger to fix and not a simple problem.JB

author: dorkshoei
author_rank: Frequent Contributor
timestamp: September 20, 2022, 11:56:10 pm
content: Have you asked Choice Electronics?http://www.choicegear.net/They're kind of the source for Sencore parts though I'm not sure they do repairs.Not cheap either but they may be able to point you in the direction of a repairer.

author: coromonadalix
author_rank: Super Contributor
timestamp: September 21, 2022, 12:36:23 am
content: it would or may help to have the problems historySchematics are available

author: TomWinTejas
author_rank: Regular Contributor
timestamp: September 21, 2022, 01:16:22 am
content: Quote from: dorkshoei on September 20, 2022, 11:56:10 pmLooks like they do repairs, here's their price (might be outdated) according to their site:http://www.choicegear.net/lc102.htm

author: coromonadalix
author_rank: Super Contributor
timestamp: September 21, 2022, 10:01:16 am
content: almost 5K $$$ for selling an lc103way overpriced BUT if they can do repairs .... and calibration

author: HighVoltage
author_rank: Super Contributor
timestamp: September 21, 2022, 10:10:12 am
content: Contact forum member "Sencoretech".He has officially repaired many of the LC102 and may can help you better than anyone.

author: coromonadalix
author_rank: Super Contributor
timestamp: September 21, 2022, 05:08:43 pm
content: Please OP do not start multiples threads in the other forum sections ...

author: pcprogrammer
author_rank: Super Contributor
timestamp: September 21, 2022, 06:40:03 pm
content: Quote from: HighVoltage on September 21, 2022, 10:10:12 amTo make it easy for you here is his profile linkhttps://www.eevblog.com/forum/profile/?u=113095

author: alm
author_rank: Super Contributor
timestamp: September 21, 2022, 06:47:37 pm
content: Please ask them to share what they found on the forum, because I'm sure lots of people, including me, are interested in learning more about servicing the LC102.

author: dorkshoei
author_rank: Frequent Contributor
timestamp: September 21, 2022, 07:35:58 pm
content: Quote from: alm on September 21, 2022, 06:47:37 pmI forget where I found the schematics? here perhaps?I recall they were (originally) 3 large sheets and had been overlap scanned into multiple (23) 8.5x11 scans. I used a program to stitch them together and discovered that two of the sheets had a poor overlap so I was missing a small portion.Not sure if anyone has a different better scan?

author: alm
author_rank: Super Contributor
timestamp: September 21, 2022, 08:07:16 pm
content: I see three files with schematics, probably all from the same source material, onBAMA:Sencore_LC102_Auto_Z_meter_Operator_Manual.pdfSencore_LC102_Schematics_112_pages.pdfThese contain what appears to be the same schematics, with some pages rotated relative to each other.Sencore_LC102_Schematics.zip: This file contains the stitched schematics with some of the missing parts filled in, and the rest as white. The resolution isn't great, but looks mostly legible.

author: coromonadalix
author_rank: Super Contributor
timestamp: September 21, 2022, 11:42:09 pm
content: I think they are copied from KO4BB website... and i was the first one (to my knowledge) to have stitched them together with the same section loss ... and yess the quality is discutablethe Sencore_LC102_Schematics.zip was done by meI never found a better quality for them .......Anyway the important thing is to have repos of the documents and firmwares dumps for them