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Old 07-09-2017, 08:50 AM   #321
skafiskafnjak
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Default Re: LCD TV and Monitor basic troubleshooting guides

WHat if I use 5x 10uF electrolytic in parallel?
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Old 07-09-2017, 12:56 PM   #322
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Default Re: LCD TV and Monitor basic troubleshooting guides

OK i spent some time and discovered the following.

Bad cap C131 had value of 39uF and ESR of 2ohm. It should be 47uF and 70mOhm. So ESR was way higher than needed.

C102 was OK with capacitory, however, ESR was 0.173ohm. I replaced it anyway.

Since I did not have tantalum capacitor and could not keep TV open I had to fix it right away. I used 39uF 100V ChemiCon capacitors, 3 of them in parallel so I got ESR exactly 0.070ohm while capacitance was around 120uF.
These caps were replacement ones for the old projection TV, chassis RCT CTC169 (power supply).

One note I wanted to add is that Fluke 28 measured 52uF for defective cap so this means that we should not rely our decitions based on capacitance value measured by regular DMM.
Also Sencore LC103 is outdated for these new stuff, it measures as low as 0.01ohm and its test leads as well as relays inside, which become old, are not reliable way to measure such a low ESR.

Here are few pictures to share..
Attached Images
File Type: jpg 20170709_130627_resized.jpg (265.0 KB, 40 views)
File Type: jpg 20170709_130738_resized.jpg (246.3 KB, 31 views)
File Type: jpg 20170709_130805_resized.jpg (258.6 KB, 26 views)
File Type: jpg 20170709_133541_resized.jpg (327.7 KB, 22 views)
File Type: jpg 20170709_134725_resized.jpg (361.4 KB, 22 views)
File Type: jpg 20170709_135306_resized.jpg (310.1 KB, 21 views)

Last edited by skafiskafnjak; 07-09-2017 at 01:01 PM..
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Old 07-10-2017, 10:20 PM   #323
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Default Re: LCD TV and Monitor basic troubleshooting guides

Can somebody tell me what is the use of STV CKV CPV signals on TCON strip.

What voltges will i get for them with mutimeter & what waveform will i get with DSO
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Old 07-14-2017, 10:41 AM   #324
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Default Re: LCD TV and Monitor basic troubleshooting guides

Sharp TV training manual:
__________________
Never stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956

Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999

Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl

Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/

TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809
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Old 08-03-2017, 04:54 AM   #325
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Default Re: LCD TV and Monitor basic troubleshooting guides

SAMSUNG EH UND F SERIE no Backlight

[url]https://www.youtube.com/watch?v=KHBdZqGhMTg[/url

http://www.berlin-repariert.de/samsung-qualitaet-ue32f6270-kein-bild/

LED Driver IC slc1012c on backside smps often defect!

Last edited by thoma; 08-03-2017 at 05:16 AM..
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Old 08-03-2017, 10:46 AM   #326
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Default Re: LCD TV and Monitor basic troubleshooting guides

Power supply info. WE-ONLINE
http://www.we-online.com/web/en/pass...tion_45887.php
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Old 08-05-2017, 06:13 AM   #327
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Default Re: LCD TV and Monitor basic troubleshooting guides

http://reflektor.kz/articles.php?article_id=39

http://reflektor.kz/articles.php?article_id=42

EDGE LED DIRECT LED
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Old 08-05-2017, 06:24 AM   #328
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Default Re: LCD TV and Monitor basic troubleshooting guides

http://reflektor.kz/articles.php?article_id=45

LED - Hintergrundbeleuchtung Treiber

(Ersatz von CCFL - Lampen auf LED)
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Old 08-06-2017, 12:27 AM   #329
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Default Re: LCD TV and Monitor basic troubleshooting guides

https://elektrotanya.com/samsung_ue2.../download.html

TRAINING SAMSUNG ES EH SERIE

WAIT UNTIL GET MANUAL APPEARS
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Old 08-21-2017, 10:36 AM   #330
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Default Re: LCD TV and Monitor basic troubleshooting guides

Hi to all I am new here and have a question. I own a Sony KDL-60-EX500 one day the TV went out it has a black screen but I do have full backlighting and sound just no picture.I also notice the front panel blinks 5 times. My question is should I replace the T-con board or the Main board what are the odds of either boards fixing the problem? When I power TV on it shown Sony logo and startup sound then screen gets dark but I do have full backlighting any help is appreciated thank you all.
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Old 08-24-2017, 09:58 AM   #331
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Default Re: LCD TV and Monitor basic troubleshooting guides

FAQ ceramic caps: Capacitance and Applied Voltage
https://www.vishay.com/docs/40144/capchange.pdf
http://www.murata.com/en-us/support/...mlcc/char/0005
http://www.kemet.com/Lists/Technical...or%20lower.pdf
https://ec.kemet.com/ceramic-capacit...tage-ask-fae-1
https://www.maximintegrated.com/en/a...ex.mvp/id/5527
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Old 08-29-2017, 07:16 AM   #332
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Default Re: LCD TV and Monitor basic troubleshooting guides

Quote:
Originally Posted by budm View Post
This is SONY training manual for the T-CON.
Exxcelent...10X
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Old 08-29-2017, 07:24 AM   #333
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Default Re: LCD TV and Monitor basic troubleshooting guides

Quote:
Originally Posted by budm View Post
More Learning info.
10x
Good job....
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Old 08-31-2017, 03:51 AM   #334
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Default Re: LCD TV and Monitor basic troubleshooting guides

http://televid-sib.ru/index.php?topic=42098.0

Power Supply Samsung BN44-00632A BN44-00633A schematic

Registration required!
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Old 09-08-2017, 09:08 AM   #335
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Default Re: LCD TV and Monitor basic troubleshooting guides

Needed scahematics diagram for all circuit boards for: TV SONY KDL-52ex700
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Old 09-08-2017, 09:16 AM   #336
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Default Re: LCD TV and Monitor basic troubleshooting guides

Quote:
Originally Posted by sacrh View Post
Needed scahematics diagram for all circuit boards for: TV SONY KDL-52ex700
This thread is for learning and for reference material, see the post you made for that TV you are trying to fix. Posting same request in more than one thread causes problem.
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Old 09-22-2017, 07:17 AM   #337
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Default Re: LCD TV and Monitor basic troubleshooting guides

http://forum.iwenzo.de/samsung-ue32f...tml#real295487

http://alpengeist-tvrepair.blogspot....ces-tools.html

http://www.berlin-repariert.de/samsu...ein-bild-mehr/

All about backlight LEDS LCD TV

regards thoma!

Last edited by thoma; 09-22-2017 at 07:22 AM..
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Old 09-25-2017, 06:13 AM   #338
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Default Re: LCD TV and Monitor basic troubleshooting guides

http://tel-spb.ru/remont-tv-lcd/

very good link!
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Old 09-27-2017, 09:21 AM   #339
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Default Re: LCD TV and Monitor basic troubleshooting guides

Samsung fast track
https://archive.org/details/Samsung_...st_track_guide
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Old 09-30-2017, 08:02 AM   #340
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Default Re: LCD TV and Monitor basic troubleshooting guides

very good link budm!
But the fast track repairmanuals Samsung stop by EH Serie!
Do you know a link where get F H J K Serie Samsung LED TV fast track
troubleshooting?
regards thoma!
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