Part identification / LED Monitor repair help - Page 1
Forum section: electronics / repair

author: sonja
author_rank: Newbie
timestamp: July 19, 2020, 04:03:42 pm
content: Hi together,does anyone know what part this BAO N10 ACE4506 is, maybe a transistor? I think it is an TO-252 package, but I couldn't figure out what it is.It is located in the input area of an ACER LED Monitor. Input voltage is 19 V. The monitor only powers up if I warm up the area around this part and doing a power cycle.The voltage between the lower left and lower right pin is around 2.4 V, but only under load.

author: Labrat101
author_rank: Unknown
timestamp: July 19, 2020, 07:49:48 pm
content: C 505 looks like it need re soldering and not making good contact.That is a custom mark over . Could be a voltage regulator .Measure all the voltages not just the voltage drop . The tag is to ground or plus ?is the small centre pin a direct connection to the tag ?Voltage from Tag to pin 1 ?voltage from Tag to pin 3?Some monitors have a safety device and this is properly a SCRAlso R603 look as the end has come off ..This looks like a heavy load I would check the other components first ie that c 505 looks like a real bad connection .Photo of the complete power section would also help

author: Twoflower
author_rank: Frequent Contributor
timestamp: July 19, 2020, 07:54:26 pm
content: I would be more worried about the hole in D504. And probably D501 looks not good either.

author: fzabkar
author_rank: Super Contributor
timestamp: July 19, 2020, 08:25:45 pm
content: EMBA0N10CS, Excelliance MOS Corp, N-ch logic level enhancement mode MOSFET, 100V, 12A, 100mOhm, marking BA0 + N10, TO-251:http://www.excelliancemos.com/download_prod_s.php?ds=314&file=2

author: sonja
author_rank: Newbie
timestamp: July 22, 2020, 08:26:51 pm
content: It seems that I haven’t enabled mail notifications...Thanks for your superfast replies!Quote from: fzabkar on July 19, 2020, 08:25:45 pmWow, thanks! I wasn’t able to find it, even identifying the brand by comparing the logo on the IC wasn’t possible for me.Quote from: Twoflower on July 19, 2020, 07:54:26 pmI unsoldered the two diodes, they seemed to be okay. I think they are intended to prevent polarity issues on the input.Quote from: Labrat101 on July 19, 2020, 07:49:48 pmThanks for your suggestions, I will try to investigate further and report back.

author: fzabkar
author_rank: Super Contributor
timestamp: July 22, 2020, 11:41:15 pm
content: I used these search terms:https://ipv4.google.com/search?q=filetype:pdf+BA0+N10

author: Twoflower
author_rank: Frequent Contributor
timestamp: July 24, 2020, 05:18:58 pm
content: Just for ma understanding. The diodes in the picture look badly damaged. Is this only an artefact in the picture or do at least one of them has a part of the housing missing? If that's the case I really wonder how they could survive that.

author: sonja
author_rank: Newbie
timestamp: July 24, 2020, 05:36:41 pm
content: Quote from: fzabkar on July 22, 2020, 11:41:15 pmOkay lesson learned, I switched months ago to duckduckgo. I missed to use !g for deeper searching.Quote from: Twoflower on July 24, 2020, 05:18:58 pmNah, they are okay. That is the bad image quality due to reflection and zoom.