Badcaps Electronics Repair Forum & Schematic Search

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

Last Post: What's the ideal operating temp for capacitors?

733

What's the ideal operating temp for capacitors?

by Thermaltake

04-16-2024, 04:04 AM

Announcements & Related News

Site announcements, capacitor-related news, and anything relavant you might think of... Got News? POST IT!!

Topics: 236 Posts: 42,563

Last Post: New Members - please post your introductions here

236

42,563

New Members - please post your introductions here

by Little King

Today, 08:57 AM

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: 2 Posts: 5

Last Post: ncp81208 datasheet

ncp81208 datasheet

by BAKEEL1990

05-01-2024, 05:24 AM

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: 3,195 Posts: 32,744

Last Post: How can I test non-polarized capacitor?

3,195

32,744

How can I test non-polarized capacitor?

by stj

Yesterday, 04:39 AM

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: 4,509 Posts: 74,899

Last Post: Find owner of MacBook air with icloud lock

4,509

74,899

Find owner of MacBook air with icloud lock

by stj

06-04-2024, 03:37 PM

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: 3,996 Posts: 44,561

Last Post: Adapter 24 volt problem

3,996

44,561

Adapter 24 volt problem

by sam_sam_sam

Today, 06:19 AM

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: 6,908 Posts: 37,785

Last Post: Lenovo 11E8 M70Q DIFFERENT FROM 11DT. REQUEST BIOS PLEASE

6,908

37,785

Lenovo 11E8 M70Q DIFFERENT FROM 11DT. REQUEST BIOS PLEASE

by Daddy2024

Today, 08:56 AM

Sub-Forums:

BIOS & Schematic Requests! (2,732/16,591)

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

4G LTE router sim socket replacement

by mrsdsdsdsd

Yesterday, 04:16 AM

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: 32,326 Posts: 309,418

Last Post: Compaq La-1701 Rev 2.0 schematic board view

32,326

309,418

Compaq La-1701 Rev 2.0 schematic board view

by lcdcaps1

Today, 05:26 AM

Sub-Forums:

BIOS Requests ONLY! (12,889/156,525)

Schematic Requests ONLY! (4,827/28,913)

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

Last Post: AOC 27 monitor Q27G2WG4 doesn't display logo or image on screen

5,331

75,748

AOC 27 monitor Q27G2WG4 doesn't display logo or image on screen

by borpaSpin

06-05-2024, 04:04 PM

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: 27,509 Posts: 375,342

Last Post: SAMSUNG UE55MU6405 - no standby

27,509

375,342

SAMSUNG UE55MU6405 - no standby

by lotas

Today, 08:30 AM

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: 4,198 Posts: 65,369

Last Post: Omega MML200 Coutant Lambda PSU repair

4,198

65,369

Omega MML200 Coutant Lambda PSU repair

by Crystaleyes

Today, 08:35 AM

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: 307 Posts: 1,690

Last Post: Bios Canon mg 6853

307

1,690

Bios Canon mg 6853

by Santana26

Yesterday, 03:02 PM

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: 27,611

Last Post: Yamaha RX-V577 - DC: PRT 000L

2,344

27,611

Yamaha RX-V577 - DC: PRT 000L

by darrjoh1

06-05-2024, 10:13 PM

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: 3,944

Last Post: Samsung WD80N645OOW died mid-cycle

228

3,944

Samsung WD80N645OOW died mid-cycle

by mrsith

Today, 05:48 AM

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: 1,023 Posts: 10,998

Last Post: Hilti Battery B22 4.0 blink green but not responding

1,023

10,998

Hilti Battery B22 4.0 blink green but not responding

by bohaboha

Yesterday, 04:44 PM

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: 19,500

Last Post: Quecoo T12-958 soldering station - INVER error?

1,382

19,500

Quecoo T12-958 soldering station - INVER error?

by redwire

06-04-2024, 12:10 PM

Mark Channels Read

Omega MML200 Coutant Lambda PSU repair

by Crystaleyes

Hi all.

Recently I picked up a vintage HP 37717B communications analyzer which uses one of these MML200 Coutant power supplies. Needless to say the PSU is not working, and surprisingly there is apparently nothing available on the web regarding repairing one of these. No stories, no schematics, zilch!
There[I] are [/I]however many companies offering repair 'services', however I don't have the luxury of sending it off, so am intending to do the repair myself.

I admit right now that I am no expert on smps repair, although I do have a grasp on the principle of the general...

5 Photos
- Channel: Troubleshooting Power Supplies and Power Supply Design
05-29-2024, 08:23 PM
Bios Firmware for printer HP Deksjet 3835, Board type F5R96-60004

by Mr.heinrich

Greetings, i just have a problem with printer HP deskjet 3835, this printer using F5R96-60004 board. Can you guys help me to get bios firmware that support for this type. i have searching this bios firmware at google but i can found it. help me plz. thanks.
- Channel: BIOS Requests ONLY!
Today, 08:17 AM
lenovo ideapad 5 pro 14cn6 bios bin

by konare

Hi
I have lenovo ideapad 5 pro 14cn6 which is not displayed
S/N: MP2618x...
- Channel: BIOS Requests ONLY!
Today, 05:46 AM
Samsung Chromebook 4 BA41-02783D REV: 1.4 bios

by Washington Santana

goodnight . I have a Samsung Chromebook 4 that has a corporate lock and I can't use it. If someone can give me a bios without the lock
model: BA41-02783D REV: 1.4
JAN-11/15 MAIN
XE310XBA-KT3BR
- Channel: BIOS Requests ONLY!
05-29-2024, 07:38 PM
Imac 2012 format

by s_henya

Hi guys,

Just found this old but nice IMac 2012.
current user had a password which i dont know.
i want to format it and do a clean IOS installation.
i tried command. + R after powering on but it didn’t do anything and IOS continued to load.
i tried the online recovery but it gave me denied icon after connecting to the Wifi.

is there any working method to format it?
guess i can take the long way of ordering the prying tools and format the hdd using another pc.
but i was hoping for another quicker solution....
- Channel: Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals
Today, 06:37 AM
BIOS request for Acer A315-510P Notebook (Motherboard: nb6301a_mb_v3)

by pastorello

Hello,

I need the BIOS for the Acer A315-510P with the nb6301a_mb_v3 motherboard. Notebook is not turning on and everything indicates that the bios is corrupted, if you could send me a backup
- Channel: BIOS Requests ONLY!
Yesterday, 03:22 PM
HP Probook 640 g8 break Fuse / Flashing BIOS with 5V instead auf 3,3 CH341A

by martin86

Hi,

i had a HP 640 G8 with a DA0X8AMB8E0 Board. I would Flash the BIOS, but i used a CH341A Programmer with 5V instead auf 3,3. Then I thought the BIOS was now defective. I have already replaced it with a new one (flashed the same BIOS).

With the new chip, the notebook has the same error. The charging port lights up once and then goes out again. The notebook does nothing more.

I iced the board with a cooling spray to possibly find a chip that gets hot or has a short circuit. Unfortunately, I didn't find any. I suspect a fuse might have blown. Does anyone...
- Channel: Troubleshooting Laptops, Tablets, and Mobile Devices
Today, 02:47 AM
Adapter 24 volt problem

by bembeno

I have 24 volt adapter when i measure its output with multimeter i found the 24 volt is good put it dosent charging the battarey of Electric wheelchair i tried another adapter and charging thr battarey what can be the problem
- Channel: General Electronics Technical Discussion
Yesterday, 12:32 AM
Brother “P-Touch” PT-2040SC modified with metal hydrate AAA 700 milliampere hour battery pack originally for cell phone

by sam_sam_sam

I have gotten so tired of battery cells leaking and it happen to this device and it is not very old I had bought these battery packs from The Electronic Goldmine for $1.00 a pack when they had a sale and I am putting 3 packs to good use so I do have to deal with leaking battery cells I am over it

I bought the label maker at Sam Club a while back for $29.99 it come with 4 cartridges and they had them on sale again for $29.99 again so I bought another one because I was not sure if I was going to able to get it to work on the battery cells that I had planned on using for this particular...
- Channel: General Electronics Technical Discussion
05-26-2024, 10:44 AM
Samsung WD80N645OOW died mid-cycle

by mrsith

Hi fellow lifesavers.

I have a Samsung washer-dryer WD80N645OOW which died mid-cycle. No response to anything, completely dead.

Checked the socket, the plug fuse, all good. Took it out to examine the boards.

There is a relay clicking on the mainboard. Upon applying power, I can see a diode flashing on inverter board, after a while a diode on main board lits up for a split second, then I can hear a relay clicking. This repeats a few times, then everything dies completely.

I've been trying to examine the main board, but it's a bit difficult becuse...

4 Photos
- Channel: Troubleshooting Appliances and other Household Electronic Stuff
Yesterday, 09:11 AM

requesting bios for G16 7630

by joel9922

hi there can i request for bios for G16 7630 32mb

service tag: B2XK904...
- Channel: BIOS Requests ONLY!
Today, 04:06 AM
lenovo ideapad 5 pro 14cn6 bios bin

by konare

Hi
I have lenovo ideapad 5 pro 14cn6 which is not displayed
S/N: MP2618x...
- Channel: BIOS Requests ONLY!
Today, 05:46 AM
Imac 2012 format

by s_henya

Hi guys,

Just found this old but nice IMac 2012.
current user had a password which i dont know.
i want to format it and do a clean IOS installation.
i tried command. + R after powering on but it didn’t do anything and IOS continued to load.
i tried the online recovery but it gave me denied icon after connecting to the Wifi.

is there any working method to format it?
guess i can take the long way of ordering the prying tools and format the hdd using another pc.
but i was hoping for another quicker solution....
- Channel: Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals
Today, 06:37 AM
HP Probook 640 g8 break Fuse / Flashing BIOS with 5V instead auf 3,3 CH341A

by martin86

Hi,

i had a HP 640 G8 with a DA0X8AMB8E0 Board. I would Flash the BIOS, but i used a CH341A Programmer with 5V instead auf 3,3. Then I thought the BIOS was now defective. I have already replaced it with a new one (flashed the same BIOS).

With the new chip, the notebook has the same error. The charging port lights up once and then goes out again. The notebook does nothing more.

I iced the board with a cooling spray to possibly find a chip that gets hot or has a short circuit. Unfortunately, I didn't find any. I suspect a fuse might have blown. Does anyone...
- Channel: Troubleshooting Laptops, Tablets, and Mobile Devices
Today, 02:47 AM
Bios Firmware for printer HP Deksjet 3835, Board type F5R96-60004

by Mr.heinrich

Greetings, i just have a problem with printer HP deskjet 3835, this printer using F5R96-60004 board. Can you guys help me to get bios firmware that support for this type. i have searching this bios firmware at google but i can found it. help me plz. thanks.
- Channel: BIOS Requests ONLY!
Today, 08:17 AM
BIOS request for Acer A315-510P Notebook (Motherboard: nb6301a_mb_v3)

by pastorello

Hello,

I need the BIOS for the Acer A315-510P with the nb6301a_mb_v3 motherboard. Notebook is not turning on and everything indicates that the bios is corrupted, if you could send me a backup
- Channel: BIOS Requests ONLY!
Yesterday, 03:22 PM
A1707 820-0098 5V power loop all USB-C except one jack, and strangeness after replacing the one bad CD3215C.

by abajor

I have this 1707 with the 5V 0A power loop issue on 3 of the jacks.
One of the CD3215C00 had corrosion under one side U3100 to be precise.
This USB jack was drawing ~.2A and not boot looping.

After replacing the CD3215 I am having an odd problem. I can rotate the USB-C and it only works in one orientation. And now it boot cycles, like the other usb channels so I'm part way there.

After looking at the schematic and board view. It makes very little sense that this is happening since they both pin 59 and pin 60 both go to the same places on J3300.
...
- Channel: Troubleshooting Laptops, Tablets, and Mobile Devices
Yesterday, 08:02 PM
HP Compaq Presario CQ42 powering on, no display. Missing +3VLCD.

by gjgib

Hi again guys. I have this motherboard that won't show display even tho it was doing it yesterday. I think something could've past away in the circuit.
I'd appreciate if anyone who is used to MOBO LCD voltages and circuits could enlighten me since this is the first time I have to deal with it.

I'm missing [B]+3VLCD.[/B]

This is the circuit
[URL=filedata/fetch?filedataid=339573][ATTACH=JSON]{"data-align":"none","data-size":"thumb","data-attachmentid":3284862}[/ATTACH][/URL] [URL=filedata/fetch?filedataid=339576][ATTACH=JSON]{"data-align":"none","data-size":"thumb","data-attachmentid":3284863}[/ATTACH][/URL]...
- Channel: Troubleshooting Laptops, Tablets, and Mobile Devices
06-05-2024, 09:29 PM
Asus X571LI filled in, need a piece of diagram or photo of the area

by antibotan

daxktdmb8c0
Maybe someone has a photo of a section of the board, otherwise there are no diagrams or boardview...
- Channel: Troubleshooting Laptops, Tablets, and Mobile Devices
06-05-2024, 12:31 PM
Troubleshooting Razer Blade 15 DA560

by chickenhawk88

I started troubleshooting this Razer Blade 15 laptop DA560 motgerboard a while back, due to some shorted 19v, 5v, 1v power rails. I fixed some of components and think 19v rail is good, 5v rail is good, 3v is better but not all way i think, and 1v is still bad. At this point the diode reading on these rails are 19v - 0.032v , 5v - 0.167v, 3 - 0.63v and 1v - 0.005v .

When the rails when down, I went down different rabbit holes and seeing chips getting pretty warm on thermal but not blazing hot. Yet there were not any caps or any small components getting blazing hot. Example is EC chip,...

1 Photo
- Channel: Troubleshooting Laptops, Tablets, and Mobile Devices
Yesterday, 11:35 AM

Announcement

Badcaps Electronics Repair Forum & Schematic Search

What's Going On?

Badcaps Statistics

Latest Topics

Trending

Announcement

Badcaps Electronics Repair Forum & Schematic Search

What's Going On?

Badcaps Statistics

Latest Topics

Tag Cloud

Trending