Good day all,
As title says, black screen. Replaced hot side and largest cold side capacitors on power board as were reading erratic and TV was dead (no power light).
Following replacement, power led now illuminates, changes from red to blue on pressing TV joystick, still black screen. Connection board appears powered (optical sound led on). Slight crackling from speakers.
Checking led driver voltage reveals voltage falls off after power on from pressing joystick (drops to zero).
Attached picture of power board.
Next check steps...
No content found
Please log in to your account to view your subscribed posts.
| Directory | Topics | Posts | Last Post | |||
|---|---|---|---|---|---|---|
| Badcaps Capacitor & Electronics Repair Forum | ||||||
|
Frequently Asked Questions (No Posting)
All new members, PLEASE READ HERE FIRST! Posting only allowed by established members.
Topics: 45
Posts: 733
|
45 | 733 |
|
|||
|
Announcements & Related News
Site announcements, capacitor-related news, and anything relavant you might think of... Got News? POST IT!!
Topics: 236
Posts: 42,626
|
236 | 42,626 |
|
|||
| Document & Software Archive | ||||||
|
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: 1
Posts: 4
Last Post:
ncp81208 datasheet
|
1 | 4 |
|
|||
| General Topics | ||||||
|
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: 3,194
Posts: 32,743
Last Post:
How can I test non-polarized capacitor?
|
3,194 | 32,743 |
|
|||
|
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: 4,508
Posts: 74,900
Last Post:
FlexBV boardviewer
|
4,508 | 74,900 |
|
|||
| Troubleshooting Hardware & Devices and Electronics Theory | ||||||
|
General Electronics Technical Discussion
If you have a general question concerning basic electronics theory or component function & usage, here's where it goes.
Topics: 4,001
Posts: 44,594
Last Post:
Equipment Display Types
|
4,001 | 44,594 |
|
|||
|
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: 6,914
Posts: 37,822
|
6,914 | 37,822 |
|
|||
|
Sub-Forums:
| ||||||
|
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: 502
Posts: 5,459
Last Post:
4G LTE router sim socket replacement
|
502 | 5,459 |
|
|||
|
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: 32,371
Posts: 309,937
|
32,371 | 309,937 |
|
|||
|
Sub-Forums:
| ||||||
|
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: 5,331
Posts: 75,748
|
5,331 | 75,748 |
|
|||
|
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: 27,517
Posts: 375,386
Last Post:
Sharp LC-40UG7252K black screen
|
27,517 | 375,386 |
|
|||
|
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: 4,199
Posts: 65,386
Last Post:
Welder not turning on - Learning
|
4,199 | 65,386 |
|
|||
|
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: 308
Posts: 1,692
Last Post:
i need dump for printer canon G3430
|
308 | 1,692 |
|
|||
|
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: 2,344
Posts: 27,615
|
2,344 | 27,615 |
|
|||
|
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: 228
Posts: 3,954
Last Post:
Samsung WD80N645OOW died mid-cycle
|
228 | 3,954 |
|
|||
|
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: 1,025
Posts: 11,017
Last Post:
Xbox 360 Xenon Modern Capacitor Replacements
|
1,025 | 11,017 |
|
|||
|
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: 1,382
Posts: 19,502
|
1,382 | 19,502 |
|
|||
-
Today, 01:13 PM
-
Got a LG with color static frozen. Doesn't move just stays on this picture. I'd assume it's main board but I'm sure one of you has seen this before. Any data helps thanks...Today, 09:35 AM
-
Hi.
Urgently need a Microsoft Surface 3 1867 schematic...Today, 01:04 PM -
I have an HP Spectre x360 Convertible 13 - ap0121ng that is not powering on neither through battery not through USB-C, it also has no shorts. A schematic would be really helpful at this point. Many thanks in advance!
The motherboard model number is: DA0X36MBAE0 REV EToday, 12:22 PM -
I get backlights that stay on not there is no image. The tv does not automatically power on when plugged in either which I generally see happen when there is a fault. It responds as it should to the power button.
I checked the test points on the TCON and I have proper voltages except for at 1P15V. I don't know if that is supposed to be 15V or 5V, but either way I only get 1.134V on that point. I have 12V, 8V, VCC, and a small amount on the CKV point.
I tried heating up the SoC on the main board but that made no difference. Disconnecting either ribbon from the TCON also...06-01-2024, 08:55 PM -
Hello,
I want to fix a 2016 12 Inch Macbook which has a dead Logic Board.
USB-C and Battery section seems to work, trackpad clicks, but all cpu Voltages, (VCORE, CPUSA) are 0V, CPU stays cold.
PPBUS_G3H, 3.3V and 5V Rails seem normal. PM_SLP_S3_L is present but CPU_VR_READY is not.
Thanks for your help!Today, 11:13 AM -
Hello guys.
I Have an a2338 with a big problem.. it keeps random freezing and it needs to be powered off from the Power button.. usb fpc connector was completely burned and it has been replaced.. is there a method in order to understand what causing this issue?
Thanks...Today, 11:09 AM -
[B]Chromebook e100 2nd Gen - Bios enable Developer Mode and remove Managed by...[/B]
I Have Chromebook e100 2nd Gen,
Please can you enable Developer mode and remove managed by ... please
mlb_serial_number: [B]1532022002872[/B]
serial_number: [B]PF2TKV5V[/B]
model_name: [B]Lenovo 100e Chromebook 2nd Gen[/B]
mfg_date: [B]2021-04-19[/B][B]Chromebook e100 2nd Gen - Bios enable Developer Mode and remove Managed by...[/B]
I Have Chromebook e100 2nd Gen,
Please can you enable Developer mode and remove managed by ... please
mlb_serial_number:...06-05-2024, 12:57 PM -
Have a Bios lock bin..please can someone open and give
Model A1502 2015 early
S/N C17QR0GUFVH3...Today, 10:50 AM -
Hello Guys, I am looking for a working bios for a L15 Gen 4 ThinkPad) - Type 21H4
Machine type model: 21H4000TLM
I lost my backup and couldn't retrieve it, it's blank now since it reads all FFFFs, can anyone help me please?Yesterday, 06:46 PM
-
Got a LG with color static frozen. Doesn't move just stays on this picture. I'd assume it's main board but I'm sure one of you has seen this before. Any data helps thanks...Today, 09:35 AM
-
I have an HP Spectre x360 Convertible 13 - ap0121ng that is not powering on neither through battery not through USB-C, it also has no shorts. A schematic would be really helpful at this point. Many thanks in advance!
The motherboard model number is: DA0X36MBAE0 REV EToday, 12:22 PM -
Hi
acer concept d intel i7 11th GH67G LA-L211P REV 1A 17-03-2021
the laptop dead by water on keyboard
i open the laptop i don't find any water on the motherboard or any damage
the laptop turn on without battery
i found shorted mosfet on smbus battery i remove it the laptop turn on with a battery but not charging
the big problem is the laptop is very slow
cpu works with low speed almost 0.7ghz
i do clean me bios but samething
what make laptop works with low profile and very slow the display takes long time.Today, 04:27 AM -
please help, I bought a laptop to replace the 12th generation processor, I installed a new processor, but was faced with clearing the ME region, I'm afraid that nothing will work out for me, please help, I provide the original BIOS LA-L974P Rev 1B...Yesterday, 10:22 PM
-
Good day all,
As title says, black screen. Replaced hot side and largest cold side capacitors on power board as were reading erratic and TV was dead (no power light).
Following replacement, power led now illuminates, changes from red to blue on pressing TV joystick, still black screen. Connection board appears powered (optical sound led on). Slight crackling from speakers.
Checking led driver voltage reveals voltage falls off after power on from pressing joystick (drops to zero).
Attached picture of power board.
Next check steps...Today, 01:13 PM -
Hi.
Urgently need a Microsoft Surface 3 1867 schematic...Today, 01:04 PM -
Hello,
I want to fix a 2016 12 Inch Macbook which has a dead Logic Board.
USB-C and Battery section seems to work, trackpad clicks, but all cpu Voltages, (VCORE, CPUSA) are 0V, CPU stays cold.
PPBUS_G3H, 3.3V and 5V Rails seem normal. PM_SLP_S3_L is present but CPU_VR_READY is not.
Thanks for your help!Today, 11:13 AM -
Hello guys.
I Have an a2338 with a big problem.. it keeps random freezing and it needs to be powered off from the Power button.. usb fpc connector was completely burned and it has been replaced.. is there a method in order to understand what causing this issue?
Thanks...Today, 11:09 AM -
Hello. Could you help me? Netbook medion e11201 (sf20pa3) has a Bios password. I can't find the new Bios. Couldn't find the password in the Bios dump either. Please help me.
or it is possible to remove the password from the dump. thank you....Today, 06:25 AM -
Have a Bios lock bin..please can someone open and give
Model A1502 2015 early
S/N C17QR0GUFVH3...Today, 10:50 AM