2+ year old TV with many (720? 65" version has 720) mini LED dimming zones. TV boots, has sound, panel picture can be seen with flashlight. No backlight. No TV model sticker on rear panel (Maybe Samsung service removed it, read below). Found the model # through the PSU and zoned LED driver board numbers.
PSU has a click near LED output circuit at 1 second interval, sounded like the 4x barrier rectifier area. Protective pastic liner under PSU shows heat signature on the Schottky Barrier Rectifier in this circuit. Found a shorted diode (2 diode per rectifier, failed rectifier labled...
No content found
Please log in to your account to view your subscribed posts.
Directory
Topics
Posts
Last Post
Frequently Asked Questions (No Posting)
All new members, PLEASE READ HERE FIRST! Posting only allowed by established members.
Topics: 46
Posts: 735
Last Post:
46
Topics
735
Posts
01-04-2025
Last Post
Announcements & Related News
Site announcements, capacitor-related news, and anything relavant you might think of... Got News? POST IT!!
Topics: 242
Posts: 51,284
242
Topics
51,284
Posts
Today
Last Post
Document & Software Archive
Our users have built this archive over 20 years. Please read our Terms of Service before accessing it.
Schematics and Boardviews
Share or download schematics and boardview files. Contribute your knowledge or ask questions. Before using please read our Terms of Service.
Topics: 2,174
Posts: 2,632
2,174
Topics
2,632
Posts
Yesterday
Last Post
Common Parts Library - Datasheets
Share or download datasheets or application notes for electronic components and other parts. Contribute your knowledge or ask questions. Before using please read our Terms of Service.
Topics: 59
Posts: 69
59
Topics
69
Posts
05-06-2025
Last Post
General Capacitor Questions & Issues
Questions and answers for identifying whether your device has bad capacitors. Also post general capacitor-related questions and issues here.
Topics: 3,269
Posts: 33,285
Last Post:
3,269
Topics
33,285
Posts
Today
Last Post
General Computer & Tech Discussion
Have just a general computer question, post it here. This can be anything from an OS issue, hardware issue not related to capacitors, upgrade question, or whatever basic tech-related issue is on your mind.... This is also a good place to share your tech projects!
Topics: 4,592
Posts: 75,568
Last Post:
4,592
Topics
75,568
Posts
Yesterday
Last Post
General Electronics Technical Discussion
If you have a general question concerning basic electronics theory or component function & usage, here's where it goes.
Topics: 4,287
Posts: 47,153
4,287
Topics
47,153
Posts
Yesterday
Last Post
Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals
Technical discussions covering any type of desktop motherboard, video/graphics card, controller card, or whatever other desktop peripheral you need help with. Any and all brands and models welcome. When starting a new thread, please put the make AND model of your device in the thread title. Also be VERY descriptive of your issue, that way you'll get the best answer possible!
Topics: 7,949
Posts: 59,463
Last Post:
7,949
Topics
59,463
Posts
Today
Last Post
Sub-Forums:
BIOS & Schematic Requests!
(3,397/22,151)
Troubleshooting & Designing Networks
Post your computer network questions, ideas, gripes, and so on in here. This can be any type of network, whether its cabled, wireless, or whatever. When starting a new thread, please put the make AND model of your device in the thread title. Also be VERY descriptive of your issue, that way you'll get the best answer possible!
Topics: 534
Posts: 5,647
Last Post:
534
Topics
5,647
Posts
Today
Last Post
Troubleshooting Laptops, Tablets, and Mobile Devices
Technical discussions covering any type of laptop, notebook, netbook, tablet, or smartphone. Any and all brands and models welcome. When starting a new thread, please put the make AND model of your device in the thread title. Also be VERY descriptive of your issue, that way you'll get the best answer possible!
Topics: 37,237
Posts: 384,370
Last Post:
37,237
Topics
384,370
Posts
Today
Last Post
Sub-Forums:
BIOS Requests ONLY!
(14,780/210,560)
Schematic Requests ONLY!
(5,640/33,758)
Troubleshooting Computer Displays
Technical discussions covering any type of PC/computer display, whether it be CRT, LCD, or anything else. When starting a new thread, please put the make AND model of your device in the thread title. Also be VERY descriptive of your issue, that way you'll get the best answer possible!
Topics: 5,441
Posts: 76,428
Last Post:
5,441
Topics
76,428
Posts
Today
Last Post
Troubleshooting TVs and Video Sources
Technical questions about your defective television, projection screen, LCD/plasma, or any other type of video device. When starting a new thread, please put the make AND model of your device in the thread title. Also be VERY descriptive of your issue, that way you'll get the best answer possible!
Topics: 28,159
Posts: 384,374
Last Post:
28,159
Topics
384,374
Posts
Today
Last Post
Troubleshooting Power Supplies and Power Supply Design
Technical discussion for power supplies. This covers PC supplies, and any other related power supply issue. When starting a new thread, please put the make AND model of your device in the thread title. Also be VERY descriptive of your issue, that way you'll get the best answer possible!
Topics: 4,343
Posts: 66,694
Last Post:
4,343
Topics
66,694
Posts
Today
Last Post
Troubleshooting Printers, Copiers, Scanners and other Imaging & Printing Devices
Technical questions about your defective laser or ink printer, plotter, copier, scanner, and other imaging & printing devices. This section also includes digital cameras. When starting a new thread, please put the make AND model of your device in the thread title. Also be VERY descriptive of your issue, that way you'll get the best answer possible!
Topics: 361
Posts: 1,904
361
Topics
1,904
Posts
Today
Last Post
Troubleshooting Audio Equipment
Technical discussion on audio equipment troubleshooting and installation. This can be anything from a home/car stereo, guitar amp, and so on. When starting a new thread, please put the make AND model of your device in the thread title. Also be VERY descriptive of your issue, that way you'll get the best answer possible!
Topics: 2,529
Posts: 28,866
Last Post:
2,529
Topics
28,866
Posts
Today
Last Post
Troubleshooting Appliances and other Household Electronic Stuff
Technical discussion on household appliances & other household electrics & electronics; including troubleshooting and installation. This can be anything from a washer/dryer, dishwasher, microwave oven, other sordid kitchen electrics and so on. When starting a new thread, please put the make AND model of your device in the thread title. Also be VERY descriptive of your issue, that way you'll get the best answer possible!
Topics: 320
Posts: 4,930
320
Topics
4,930
Posts
Today
Last Post
Troubleshooting Game Consoles & Other Weird Devices
This can be anything from game consoles to arcade games to anything else that doesn't really fit into any of the above categories. When starting a new thread, please put the make AND model of your device in the thread title. Also be VERY descriptive of your issue, that way you'll get the best answer possible!
Topics: 1,183
Posts: 12,148
1,183
Topics
12,148
Posts
Yesterday
Last Post
Equipment Usage, Soldering, Techniques, and Reviews
Technical discussions concerning soldering techniques, usage of test equipment, how it works, what's best, and some pointers in using it all.
Topics: 1,421
Posts: 19,903
Last Post:
1,421
Topics
19,903
Posts
Yesterday
Last Post
Specifications
Archive of specifications and other data.
Laptop, Tablet, & Notebook Specifications
Basic specifications for laptops, tablets, & notebooks. We are constantly adding new content like boardviews, schematics, fixes, and other data here.
Topics: 101,079
Posts: 101,099
101,079
Topics
101,099
Posts
Today
Last Post
Server, iMac, & Desktop PC Specifications
Basic specifications for server, iMac, & desktop computers. We are constantly adding new content like boardviews, schematics, fixes, and other data here.
Topics: 8,712
Posts: 8,720
8,712
Topics
8,720
Posts
05-19-2025
Last Post
-
-
Hello fellows. My Lenovo ideapad5 151al7 doesn't charge my battery, this seemed to happen right after an win 11 update, at least that is when I noticed it. I rolled back the update but it didn't matter. The laptop doesn't work off of the power adapter, which btw, I always leave plugged in and never really use the battery. New power adapter and battery, same problem. USB-c connector. The battery monitor in setup says "charger not installed", (but it is). Using a usb tester, with the battery plugged in it reads 20 volts but no current. With the battery unplugged it only reads 5 volts with... -
As this is a brand new forum, I thought I'd open up a thread to encourage new members to introduce themselves a bit.. now hey.. let's not get too personal.. ok ?
And if you wouldn't mind to keep this thread \"clean\" let's try to keep the the chitchat (i.e. even the welcome to the board replies) to a minimum or this thread may get to 100 pages fast
So I'll start things off :
My name is petabyte and I'm a forum junkie. :oops:
I've been off the wagon for a number of years and countless times I've tried to stop but it's useless.....
-
My 1st question is regarding PCB markings:
Some components marked on the PCB are prefixed with a 'p', so for example, rather than c101 it might be 'pc101', or r101 - 'pr101', etc... so what does the addition of the 'p' on these components indicate?
My next question is regarding component values on the schematics:
SC10U25V3MX-GP
It looks like this capacitor is 10uf 25v, but I'm not sure what else is indicated here. What does "s" at the beginning, and the 3mx at the end indicate? I'm assuming that since everything in the schematics ends in... -
Hi, gusy I need bios dump for laptop Dell 7567, motherboard LA-D993P.
My backup bios...
widgetinstance 454 (Related Topics) skipped due to lack of content & hide_module_if_empty option.
There are currently 485737 users online. 3909 members and 481828 guests.
Most users ever online was 1,342,976 at 10:51 PM on 04-26-2024.
