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| Badcaps Capacitor & Electronics Repair Forum | ||||||
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Frequently Asked Questions (No Posting)
All new members, PLEASE READ HERE FIRST! Posting only allowed by established members.
Topics: 45
Posts: 733
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45 | 733 |
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Announcements & Related News
Site announcements, capacitor-related news, and anything relavant you might think of... Got News? POST IT!!
Topics: 236
Posts: 42,195
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236 | 42,195 |
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| Document & Software Archive | ||||||
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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
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1 | 4 |
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| General Topics | ||||||
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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: 3,190
Posts: 32,711
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3,190 | 32,711 |
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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: 4,501
Posts: 74,872
Last Post:
Topcat's Other Misc Weird Build Thread
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4,501 | 74,872 |
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| Troubleshooting Hardware & Devices and Electronics Theory | ||||||
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General Electronics Technical Discussion
If you have a general question concerning basic electronics theory or component function & usage, here's where it goes.
Topics: 3,983
Posts: 44,442
Last Post:
lithium iron battery pack rebuilding kit
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3,983 | 44,442 |
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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: 6,852
Posts: 37,482
Last Post:
HP Prodesk 400 G6 mini admin bios password
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6,852 | 37,482 |
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Sub-Forums:
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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: 501
Posts: 5,455
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501 | 5,455 |
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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: 32,071
Posts: 306,372
Last Post:
help me unlock HP Pro x360 435 G9.
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32,071 | 306,372 |
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Sub-Forums:
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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: 5,327
Posts: 75,728
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5,327 | 75,728 |
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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: 27,479
Posts: 375,072
Last Post:
UE65HU8500T picture issue
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27,479 | 375,072 |
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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: 4,189
Posts: 65,268
Last Post:
Welder not turning on - Learning
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4,189 | 65,268 |
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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: 304
Posts: 1,675
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304 | 1,675 |
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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: 2,333
Posts: 27,558
Last Post:
Uniden bearcat UBC 360clt no sound output
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2,333 | 27,558 |
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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: 227
Posts: 3,945
Last Post:
BOSCH Microwave CFA634 error E1006
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227 | 3,945 |
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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: 1,007
Posts: 10,898
Last Post:
playstation 5 digital firmware dump
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1,007 | 10,898 |
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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: 1,381
Posts: 19,448
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1,381 | 19,448 |
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i am now being pushed for a list of the best tools for the right price to allow me to rebuild 80v battery packs and the like .someone i do work for has threatened to buy me the kit . so things like automatic cell testing kit with many bays . tab welder and suchlike to enable me to get right on it . and supplies that will be needed like new tabs and single cells .05-17-2024, 05:09 PM
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Hi,
I am trying to help someone to repair a mac mini A1993 820-00939.
The mac mini won't power on.
Voltages on U7800 are all good except
PP1V2_PRIM 0v
PP1V_PRIM 0v
PP5V_G3S is missing too
Someone has the power on sequence of this ?
Thank you on advance.
Eric...04-24-2024, 12:53 AM -
Hi,
the TV has a black screen. Sound OK, backlight OK.
When I measure T-CON voltages, there is VGL+VGH=0V. After unplug the right side of the screen from the T-con, voltages are OK and half screen works normally.
I tried to search for any kind of short on the right side, but I had no luck. I have a beginner experience in measuring and repairs of the LCD panels..
Thanks to anyone who can guide me in solving the problem.. and be patient with my english 🙂😁05-13-2024, 11:04 PM -
Hi I have inherited the above desktop scanner, all seems to work correctly but there is no sound output. The only sound I do get from the speaker is the beep confirmation when you press a key. No output from the headphone socket either. Not even radio static with squelch fully turned down, tried a reset by holding 2, 9, and hold buttons but still no sound, does anyone have any experience with these scanners, thanks.05-13-2024, 04:12 AM
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Hi,
I bought a faulty A2289 for myself.
The USB-C meter was stuck on 5V.
After remove the board the U3100 was corroded and also around but quite light.
So I clean the U3100 and see R2834 in bad condition and its value was not good.
I replace it and not the USB-C meter shows 20V, the fan is spinning, CPU is hot but nothing else no picture.
The USB-C meters shows a very low current with all connected. It starts at 20v few mA and then stays at 20v 100mA.
How mush current the board is supposed to take without nothing...Today, 12:20 AM -
When plugged in (no battery installed), the battery light on the motherboard lights up and then turn off. When powering on, the same and light and the power button also light up in a white color but no output on the display. It stayed like that for a few seconds before shutting down. I also seem to ruined a connector that connects to the WLAN, 2 USB and audio board, the same board also have a melted 2062A IC. I will post pictures in the reply section05-11-2024, 04:40 AM
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Hello, I have this HP Pavilion X360 14-ek0033dx laptop with bios lock. I am unable to change drive boot order because of it.
Please, help me remove it.
Model: 14-ek0033dx
S/N# 8CG2272ZB5
ProdID 67W83UA#ABA
Original BIOS file is attached. Thank you....Yesterday, 08:58 PM -
could anyone help me with Asus gaming laptop tmt yaml 19 94v-0 schematic + boardview.Yesterday, 04:40 PM
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I was wondering if there is a knowledge base on troubleshooting HDD failures and when it might be viable to try certain repair/recovery techniques.
I recently got a WD20EARS 2TB Drive from a customer in hopes of retrieving data. The drive reads as zero size, I can't hear any head activity but it does appear the platter is spinning I can feel some gyroscopic action picking up the drive.
As a shot it the dark I bought a donor board and swapped the rom chip. Same issue zero byte drive.
I'm assuming that the armature is no longer functional internally so no data can...Yesterday, 08:35 PM -
Hello ! The system installs but cannot boot and the screen of death appears.
macbook works in safe mode
after pressing the power button, the system starts to boot after 27 seconds, which is a very long time
Yesterday, 06:32 PM
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Hello, I have this HP Pavilion X360 14-ek0033dx laptop with bios lock. I am unable to change drive boot order because of it.
Please, help me remove it.
Model: 14-ek0033dx
S/N# 8CG2272ZB5
ProdID 67W83UA#ABA
Original BIOS file is attached. Thank you....Yesterday, 08:58 PM -
Hi,
I have Microwave BOSCH CFA634
It runs, but after 10 -15 seconds stops working.
Sometimes it shows error E1006.
I can't find this error explication.
Some people say it's communications error between main and display module.
Probably somebody has an experience with this issue?
Can you help me please?
Thank you an advance....05-17-2024, 05:17 PM -
i am now being pushed for a list of the best tools for the right price to allow me to rebuild 80v battery packs and the like .someone i do work for has threatened to buy me the kit . so things like automatic cell testing kit with many bays . tab welder and suchlike to enable me to get right on it . and supplies that will be needed like new tabs and single cells .05-17-2024, 05:09 PM
-
I am trying to downgrade my bios on my Alienware so I can undervolt & overclock my CPU, and overclock my ram. I need to get to bios 1.2.2 for this. Dell doesn't allow downgrades, and their bios file is an exe compiled in c++, so I can't decompile it easily. I am wondering if I can flash the bios manually using a usb flasher. I would like to know if this is possible, and if so, where the bios chip would be. I know flashers are pretty cheap and the bios chip is 8-pin. There are two of these chips only when I open the back panel of the laptop. I'm not sure if there are any on the other side of...05-17-2024, 03:34 PM
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Hi everyone,
I have been working on a no power issue with my personal ASUS gaming laptop. It went dead a few months ago.
Some history:
Since then, I've found a blown mosfet on the GPU line which I replaced. It started up without a battery, then when I added the battery back it wouldn't start up again.
As a result, there were some blown components around the BQ chip. (The BQ chip itself - BQ24780S, the low side battery mosfet (shorted), and a resistor -> all replaced)
Now, with a new battery the system will start up and run off...05-13-2024, 09:40 AM -
Hi,
I bought a faulty A2289 for myself.
The USB-C meter was stuck on 5V.
After remove the board the U3100 was corroded and also around but quite light.
So I clean the U3100 and see R2834 in bad condition and its value was not good.
I replace it and not the USB-C meter shows 20V, the fan is spinning, CPU is hot but nothing else no picture.
The USB-C meters shows a very low current with all connected. It starts at 20v few mA and then stays at 20v 100mA.
How mush current the board is supposed to take without nothing...Today, 12:20 AM -
Hello,
I have 2 laptops E14 and one E15 with the same problem: don't turn on (no led) I suspect the bios and I have buy an CH341A.
But now I need a new bios...
I give below the older bios, can you check it please, or give a valid version of BIOS?
I will be very grateful to you
At first, this is the numbs of a e14: 20TA-00EWFR
with a bios chip: Gigadevice GD25Q80
Motherboard: GE4B0/GE5B0 NM-D011
thanks...05-17-2024, 02:58 PM -
Hi friends,
I have a macbook pro A1706 820-00923-A that won't start no signs of life, no liquid, checking the voltages I found PP3V3_S5 was shorted, I removed all the processor coils, but when I 'injects a voltage it is the processor which reacts, can you confirm to me that this is definitely coming from there please?
I have 20V on the usb-c connector, and 13v stable on ppbus_g3h.
I saw that a track had burned out on PPVIN_2V7NAND_LB after resistor R9350
I injected voltage on L7660 pin 1 in short but only the processor reacts
Thanks for your...Yesterday, 12:33 PM -
Requesting Dell Latitude 5430, LA-L591P Computrace setting unlock.10-19-2022, 08:37 AM
-
Hello ! The system installs but cannot boot and the screen of death appears.
macbook works in safe mode
after pressing the power button, the system starts to boot after 27 seconds, which is a very long time
Yesterday, 06:32 PM