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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: 730
Last Post:
Electronic's acronyms - Meanings
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45 | 730 | ||||
Announcements & Related News
Site announcements, capacitor-related news, and anything relavant you might think of... Got News? POST IT!!
Topics: 234
Posts: 40,838
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234 | 40,838 | ||||
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: 0
Posts: 0
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0 | 0 |
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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: 3,166
Posts: 32,574
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3,166 | 32,574 |
by stj
03-11-2024, 12:22 PM
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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: 4,487
Posts: 74,714
Last Post:
best cheap/free scores 1.1
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4,487 | 74,714 | ||||
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: 3,943
Posts: 44,098
Last Post:
buv18a transistor sub
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3,943 | 44,098 | ||||
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: 6,688
Posts: 36,648
Last Post:
HP ERICA5 87D7 Mainboard BIOS bricked
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6,688 | 36,648 | ||||
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: 498
Posts: 5,431
Last Post:
Netgear R7500 Router Dead
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498 | 5,431 | ||||
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: 31,340
Posts: 297,131
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31,340 | 297,131 | ||||
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: 5,302
Posts: 75,594
Last Post:
Dell 2007FPB Component ID Help please!
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5,302 | 75,594 | ||||
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: 27,356
Posts: 373,183
Last Post:
Philips 50pus6503/12
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27,356 | 373,183 | ||||
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: 4,157
Posts: 65,042
Last Post:
IR21531S odd behaviour
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4,157 | 65,042 | ||||
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: 299
Posts: 1,649
Last Post:
Need dump for 58mm Thermal Printer
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299 | 1,649 | ||||
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: 2,301
Posts: 27,286
Last Post:
VSP-M1
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2,301 | 27,286 | ||||
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: 213
Posts: 3,829
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213 | 3,829 | ||||
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: 980
Posts: 10,778
Last Post:
Turtle beach 600 dongle
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980 | 10,778 | ||||
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: 1,369
Posts: 19,301
Last Post:
Trinoculars
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1,369 | 19,301 |
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Badcaps Statistics
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Topics: 101,261
Posts: 1,257,782
Members: 485,189
Active Members: 16,949
Welcome to our newest member, PE3A.
Latest Topics
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by porfyriadhsHello to everyone. I have problem with the Philips 50pus6503\12. I have bacight but no picture . Tried removing ribbon cables, the left one then the right with no lunk. Then I tried to put some tape to cover the lines but nothing changed at all. Need help thanks03-09-2024, 01:55 AM
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yesterday i bought this [ATTACH=JSON]{"data-align":"none","data-size":"custom","height":"251","title":"corrossiom.png","width":"354","data-attachmentid":3238358}[/ATTACH]
I was not high on caffeine but the specs we nice-[LIST][*]Processor: AMD Ryzen 5 4600H 6 x 3 - 4 GHz, Renoir-H (Zen 2)[*]Graphics adapter: AMD Radeon RX Vega 6 (Ryzen 4000/5000)[*]Ram: 16gb DDR4[/LIST]so i bought it now i need schematics and help trouble shooting this all i saw is this burned cap idk what...Today, 05:00 AM -
by tesnicHi community! I've a strange case.. Laptop HP Omen 15-ax with 11,55V new battery that dont charge or discharge. The battery coil with the battery connected ia 12,25V. All mosfets seems ok, i verify dont exist any short.... The laptop power on OK, even only with battery but it dont charge. I verify the volatges on BQ738H and it seems ok....i read the [B]2.2.3. Low voltage on battery charging rail[/B] post, but i dont be able to found the issue... Any idea guys? Thanks a lot!!!!Hi community! I've a strange case.. Laptop HP Omen 15-ax with 11,55V new battery that dont charge or discharge. The battery...03-11-2024, 06:32 AM
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by jjneI have a Boston Acoustics Soundwave subwoofer that I'm trying to resuscitate. It was blowing fuses and I narrowed the problem down to the main switching power supply which had blown MOSFETs. These are controlled by an IR21531S.
My understanding of these ICs is they work similarly to a 555 timer and provide constant, and opposing-phase frequency to a high and low output, in this case 50KHz.
What I found was that the LO was oscillating normally but the HO was sat at a constant 12v. This apparently was causing the HO-linked FET to fail. OK, it's a blown 21531, these are...Today, 07:16 AM -
by OknarbI have microsoft surface 1867 locked by organisation. When i try reinstall system, in moment connect to the Internet, it asks for for company email and pass. Can anyone fix it?
SN: 019831602857...-
Channel: BIOS Requests ONLY!
Today, 05:49 AM -
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by porfyriadhsHello to everyone . I have a vestel mainboard 17mb230 with no sound on the speakers only on the headphones . I think that hotel mode is on but I cant find a way to fix .. Any help will be good thanksToday, 01:12 AM
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by petehall347i am looking for buv18a transistor sub or genuine replacements . the sub said to work is bux20 . one was replaced with bux39 and worked for some time .
transistors are on motor control board in still r70-16 forklift truck which is diesel electric . there are pics of same board here if needed . [url]https://www.elektroda.com/rtvforum/topic3077152.html#gallery-9[/url]
also looking for zener bzv47c39https://i am looking for buv18a tran... motor controlYesterday, 03:03 PM -
by RWS93Hi,
I am having problems with the following laptop:
Brand: HP
Model: Elitebook 645 G10
Motherboard model: DA0X9TMB8D1 REV: D
It is an AMD 7000 series CPU laptop.
The problem is this: computer has came with BIOS password and also Windows locked to a company domain. I have done what I would normally do in such case:
1. Desoldered BIOS chip
2. Put it into the programmer
3. Made two .bin backups of original bios
4. I found a fresh BIOS image on the internet
5. Write the new fresh BIOS image to the...Today, 06:20 AM -
by jackaljackalTV all of a sudden wont turn on anymore.[LIST=1][*]Red standby light blinks and a constant clicking noise from the relay.[*]I looked at the PSU board to see if any capacitors are bulging but looked fine, bought a replacement board because I thought that was the problem but it still does the same thing.[*]The LED's from the back panel holes blink when its plugged in only if both are plugged in if I unplug either one they dont blink[*]Is the PSU supposed to be clicking even though main board or leds are not plugged in? I cant test TCON to PSU because it only draws from the mainboard[/LIST]
- TV all
Yesterday, 04:13 PM -
by Squidnshello guys i need help finding BIOS for this laptop and help putting it on by usb many thanks.
-
Channel: BIOS Requests ONLY!
Today, 05:50 AM -
Tag Cloud
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Trending
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-
yesterday i bought this [ATTACH=JSON]{"data-align":"none","data-size":"custom","height":"251","title":"corrossiom.png","width":"354","data-attachmentid":3238358}[/ATTACH]
I was not high on caffeine but the specs we nice-[LIST][*]Processor: AMD Ryzen 5 4600H 6 x 3 - 4 GHz, Renoir-H (Zen 2)[*]Graphics adapter: AMD Radeon RX Vega 6 (Ryzen 4000/5000)[*]Ram: 16gb DDR4[/LIST]so i bought it now i need schematics and help trouble shooting this all i saw is this burned cap idk what...Today, 05:00 AM -
by OknarbI have microsoft surface 1867 locked by organisation. When i try reinstall system, in moment connect to the Internet, it asks for for company email and pass. Can anyone fix it?
SN: 019831602857...-
Channel: BIOS Requests ONLY!
Today, 05:49 AM -
-
by porfyriadhsHello to everyone . I have a vestel mainboard 17mb230 with no sound on the speakers only on the headphones . I think that hotel mode is on but I cant find a way to fix .. Any help will be good thanksToday, 01:12 AM
-
by jjneI have a Boston Acoustics Soundwave subwoofer that I'm trying to resuscitate. It was blowing fuses and I narrowed the problem down to the main switching power supply which had blown MOSFETs. These are controlled by an IR21531S.
My understanding of these ICs is they work similarly to a 555 timer and provide constant, and opposing-phase frequency to a high and low output, in this case 50KHz.
What I found was that the LO was oscillating normally but the HO was sat at a constant 12v. This apparently was causing the HO-linked FET to fail. OK, it's a blown 21531, these are...Today, 07:16 AM -
by RWS93Hi,
I am having problems with the following laptop:
Brand: HP
Model: Elitebook 645 G10
Motherboard model: DA0X9TMB8D1 REV: D
It is an AMD 7000 series CPU laptop.
The problem is this: computer has came with BIOS password and also Windows locked to a company domain. I have done what I would normally do in such case:
1. Desoldered BIOS chip
2. Put it into the programmer
3. Made two .bin backups of original bios
4. I found a fresh BIOS image on the internet
5. Write the new fresh BIOS image to the...Today, 06:20 AM -
by Squidnshello guys i need help finding BIOS for this laptop and help putting it on by usb many thanks.
-
Channel: BIOS Requests ONLY!
Today, 05:50 AM -
-
by c.danielHello, please help; i have this notebook, when i plug in the charger, power led is light white a little bit and that's it.
With charger insert, only mainboard, no ram, no bios battery, no keyboard, no display, i have:
Input voltage go through first 2 mosfet's and current sense resistor.
At PL29 i have 5volts.
Without charger, i have:
On PU2, on PC2 +3VPCU to GND i have 2,5ohms
On PL16 +1.0VS5 S2 to GND i have 0,1ohm; that's is not correct, right?
I attached boardview and manual; thank you.
[url]https://www.badcaps.net/forum/troubleshooting-hardware-devices-and-electronics-theory/troubleshooting-laptops-tablets-and-mobile-devices/schematic-requests-only/78515-quanta-x63c-dax63cmb6c0-boardview[/url]...Today, 05:38 AM -
by Maxpower3Hello everyone.
Here is the bypass solution for several Lenovo ECs.
This has worked on many ECs.
Only works if password is contained in EC
I succeeded on many models
[URL="https://www.badcaps.net/forum/troubleshooting-hardware-devices-and-electronics-theory/troubleshooting-laptops-tablets-and-mobile-devices/bios-requests-only/104872-lenovo-l15-gen-2-ryzen-password-removal-w-vertyanov-successor?p=3217086#post3217086"]https://www.badcaps.net/forum/troubl...86#post3217086[/URL]
[URL="https://www.youtube.com/channel/UCeF58jC2Bt_adKcguvynjeA"]https://www.youtube.com/channel/UCeF...t_adKcguvynjeA[/URL]...-
Channel: BIOS Requests ONLY!
03-17-2024, 11:57 AM -
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by bigbootsHi all.
Need some info how to correct UUID tried u1 tools but keep getting error.
Invalid configuration information area.
Failed to write the configuration to EEPROM
Current brand name is: Target block dose not exist.
Tried the norm initialise EEPROM etc.
Thanks in advance....-
Channel: BIOS Requests ONLY!
Yesterday, 04:00 AM -
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by mikay786Just trying to fix this old Alienware m14x laptop.
found a shorted capacitor and a shorted mosfet on the input mosfet pair.
im i newish to this and was wondering why you almost always have a pair of identical mosfets on in the input? They both do the same thing so what the point?
also on a side note i am eager to test laptop since no short now, is there a way to bypass the 2nd mosfet for a temporary solution until replacement arrives?...Yesterday, 06:51 PM