New Members - please post your introductions here

[mintka]

Cześć wszystkim chciałbym nauczyć się różnych rzeczy o naprawach elektroniki.

[hide0580]

thank you

[ThinkE49]

Hello Everyone,
I am glad to be part of badcaps forum community. Happy to explore laptop electronics repairs/troubleshootig and also happy take and get help.

Thanks

[Ben Sewell]

Hiya. I'm Ben and I work with computers, sometimes that need refurb / repair effort.

[sathekanth]

hi im sathes

[sathekanth]

Hello can you remove my bios admin password Please

Dell XPS 13 9365 (P71G)

help me plz

[Bugmanscj]

Hi all: Bugman here, and a biologist by training but into tech since high school and dabbled in repairing things, anything. Began in computer science and coding (Fortran...so I'm old!) but got bored standing around waiting for programs to run on an old Conrtol Data Corp (CDC) main frame computer on campus, no PC's back then. After that the normal progression through the first IBM's and Macintosh over my career in science. Now I'm retired but more focused on home automation and AV stuff in my home theater. I've also built all my home PC's from components for at least 30 years, but never tried to repair them. Lack of knowledge frankly.

I stumbled upon this site from the audio world by purchasing a 10 year old Core Audio Technology LPS that likely needs some cap tlc. Will post soon on that topic.

[saintv]

Hi im Dinos, i'm a computer engineer

[Mazhen]

Hi. I'm Eugene and I work with computers.

[radimm]

Hello I'm Radek!

[Claudio Fieschi (Pcprice)]

Hi everyone! I'm Claudio, owner of Blue chip computers in Milano, italy
We began repairment of laptop mainboards, so it's quite a new world for us!

[Saurabh Garg]

Hello Everyone,

I am from Noida , India. Doing repairs for electronics for last 2 years.
Works on variety of electronics. its Fun to work on them

Thanks

[akus]

Hello everyone,
I am André and began to fix tv's as a hobby about a year ago when I tried changing backlights on my 2014 55" LG. It was surprisingly easy but I was not careful and the screen broke during reassembling. After that I started to look for not working tv's and to fix them. Basically by learning from mistakes forums and youtube videos, but my background in physical sciences helps as well. And Badcaps forum has been and is huge help, so I decided to register.

[RCSBraga]

Good afternoon,
I'm Romeo from Portugal and I hope to find my happiness here... not Juliet,😀😀😀...
Beginner, already with some experience in repairs, I say beginner, because you learn every day and you don't know everything!

[clinicaiphoneostia]

Hi everyone,

I'm Paul

I'm excited to be here and share my passion for computer repair. I've been fascinated with computers since I was a kid in the 90s. I remember my first computer, a bulky beige box that took up half my desk. It was slow, noisy, and crashed all the time, but I was hooked.

I spent hours tinkering with it, trying to figure out how it worked. I took it apart, put it back together, and even managed to fix a few things here and there. That's when I realized I had a knack for this stuff.

Over the years, I've kept up with the latest technology, learning everything I can about computer hardware and software. I've built my own computers, repaired countless others, and even taught a few classes on computer basics.

I'm excited to be part of this community and learn from all of you. I'm sure I'll be able to contribute my own expertise as well.

Thanks for having me!

[DigitalDrifta]

Good evening,

I'm Steve, I've been fixing computers since the early 2000's. Getting old but still enjoy repairing and fixing computers and laptops. Recently got into soldering and repairing of circuit boards, got myself a good soldering iron along with a microscope etc...

Glad to be here and learn from others!

[dj8452000]

Hi Everyone. I am 71 years young and I joined to assist me with my new hobby of LED TV Repairs. I am a licensed electrician for around 50 years. Over the past 20 or so years, I have been building and repairing computers/PC's not into macs , and I had a fairly large clientele. After so many years of doing this, the fun was gone and was replaced by boredom. It just wasn't much fun any more, and I needed better challenges in my life. I have always wanted to get more closely involved with electronics and I decided late last year to dive into this new wonderful world of challenges. There's always broken LED TV's around for free to pick up, so I started collecting broken TV's with the intent of diagnosing the problems and repairing them. I've always been pretty good at soldering as I've been doing it for at least 60 years. I am not interested in replacing boards as a fix for any set. I want to diagnose the issues with the TV, determine which board OR backlight is the cause of the problems, and then dig deeper and try to repair the suspect board at the component level. This has been very challenging so far, but also so rewarding. My days are going by so fast as I am really getting into this. I recently signed up and paid for the Robert Williams LED TV course and I'm learning allot from it. I purchased individual LED's 3 and 6 V and when there's a defective LED causing the problems, I remove the defective LED and replace it with a good one, my preferred method of repair. I have seen numerous other methods of installing replacement LED's including using wires and adding the entire LED assembly by cutting it off of another strip from a discarded TV. I purchased one of these heating apparatus and I simply put the defective LED over top of this heater, and the diffuser comes off almost instantly as soon as the LED strip heats up. I use my tweezers and voila I have the defective LED in my hand. I solder in a replacement, then glue back the diffuser BUT I discovered the best way to do this is to light up the LED's with my backlight voltage source and only then can I see the "exact" spot to put it. If you rely only on the 3 previous glue spots it can be off slightly as I discovered this first hand. Putting them on with the LED lit up pretty much guarantees you the proper placement of the diffuser. Any TV's that I've repaired so far are donated FREE. I'm not in this for the money, and actually as you all know parts cost money but it's a hobby after all so I'm not upset at paying $4 bucks for a 10 pack of mosfets or what ever I need. I can read schematics but not proficiently. I understand what the different symbols mean on a board or schematic as well as I have a fairly good understanding of the different letters used on a board to identify a component.
I get totally lost still with mosfets....... there's just so many different types but they all basically look the same duh? So I google the part number, and I read up on the mosfet to determine if it's a voltage regulator, or perhaps a n-channel power mosfet, or a shottky diode mosfet etc. I then look at the drawings to learn where the gate source drain, emitter etc are located for testing purposes. I started out by doing multimeter testing on a unplugged board testing all of the resistors, capacitors, mosfets, diodes, inductors, optocouplers etc but I have discovered that these tests are not fool proof. I purchased an isolator transformer ( thank you Robert Williams for recommending this for my safety ) and now I have removed earths ground from the picture hoping I'll live to see another day each time I'm working on these. To be honest the only shocks I've gotten so far is from my backlight tester LOL, I never pay close enough attention to the probes and where my hands are.... it looks so innocent but it stings like a bee. Yesterday I was working on a Toshiba 55 inch TV and I had the power board out, and I discovered my voltages were off...... 12 volts were reading around 9 volts and 18 volts were reading around 14.6 volts. So I started at the plug or the source and began following the volts to see what may have caused this. I discovered one mosfet where the voltage was fluctuating slightly 53 to 55 volts......Hmmmm a bad capacitor I thought to myself? Nope they all tested within specs. I tested capacitance , resistance and I also put my ESR meter on it to ensure it was a good capacitor. I discovered while doing component testing like this requires that you remove some components from the board to test because it is being negatively impacted for test purposes by some other component on the board. ( Not crazy about this part of the job ) but I'm having so much fun the days turn into nights and I'm still glued to these boards. Of course when there's voltage applied you have to be extra careful and last night my needle slipped off of the solder joint and Mr. spark came and left, burning out 2 mosfets and the main fuse. Those crazy mosfets have a number on them that's got me struggling as to what to buy. Anyone ever come across 50S500CE SMD transistor mosfet? I go to Aliexpress with that number and cannot find it, but then again I cannot find it adequately on google search either. The numbers are written down correctly. I have a fairly decent scope and I have it zoomed very large, so I know I wrote these down correctly. I found one site in Poland and using a translator they suggest it's "to 252" and they say it's a Transistor N-Mosfet 500V, 8A and 57W. I feel so stupid shorting them out with my probe last night however I would like to get replacements in but what to buy? If anyone has any ideas about this I'm all ears......
Any ways that my introduction, I hope to learn allot while here and maybe help others with the vast number of years of experience.
Thanks for reading / listening and I am anxious to get going and reading posts from others.
Have a great week everybody.
Thanks
OH Yea my real name is Bill vs my registered name of dj8452000 and I've always gone by Bilygoat on most things, so I'll use my Bilygoat avatar.

[Paulaziz]

Hi everyone. My name is Paul Aziz from Ghana. I am software developer but have been fixing computers as well.

[nootello]

Hey I'm Jordy from the Netherlands and I'm interested in electronics. I am currently in college studying IT.

[La_Valvola]

Hello everyone!
I'm an aerospace engineer student trying to learn more about computers


Happy to meet you all!