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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: 733

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

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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: 234 Posts: 41,682

Last Post: New Members - please post your introductions here

234

41,682

New Members - please post your introductions here

by enzo_nqn

Today, 01:04 PM

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: 3

Last Post: ncp81208 datasheet

ncp81208 datasheet

by xaruqui

03-27-2024, 12:27 PM

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: 3,183 Posts: 32,677

Last Post: Assistance with identifying replacement caps on ASUS P5VDZ-MX

3,183

32,677

Assistance with identifying replacement caps on ASUS P5VDZ-MX

by crosswinds

Today, 12:51 PM

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: 4,493 Posts: 74,810

Last Post: Evaluating Mechanical Hard Drives SMART Data in Linux (Ubuntu) Using the Disks Utility.

4,493

74,810

Evaluating Mechanical Hard Drives SMART Data in Linux (Ubuntu) Using the Disks Utility.

by ChaosLegionnaire

Today, 10:20 AM

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: 3,962 Posts: 44,278

Last Post: 220VAC locales... ever used DC to feed switch mode power supples...and how many volts is generally okay?

3,962

44,278

220VAC locales... ever used DC to feed switch mode power supples...and how many volts is generally okay?

by eccerr0r

Yesterday, 07:33 PM

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: 6,791 Posts: 37,179

Last Post: issue Bios unlock Elite Tower 600 G9 PC

6,791

37,179

issue Bios unlock Elite Tower 600 G9 PC

by dvalentino

Today, 12:11 PM

Sub-Forums:

BIOS & Schematic Requests! (2,670/16,212)

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: 500 Posts: 5,436

Last Post: Fortinet 50E Slowing down internet throughput

500

5,436

Fortinet 50E Slowing down internet throughput

by CapLeaker

Today, 12:31 PM

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: 31,754 Posts: 302,482

Last Post: 820-02098 and 820-02443 brd and sch files

31,754

302,482

820-02098 and 820-02443 brd and sch files

by TTTHINK

Today, 10:57 AM

Sub-Forums:

BIOS Requests ONLY! (12,643/152,090)

Schematic Requests ONLY! (4,718/28,353)

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: 5,318 Posts: 75,673

Last Post: Asus VG278 mosfet identification ?

5,318

75,673

Asus VG278 mosfet identification ?

by guizmo1967

Yesterday, 05:30 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: 27,431 Posts: 374,462

Last Post: Samsung UE55H8000SZ with TCON BN41-02112A

27,431

374,462

Samsung UE55H8000SZ with TCON BN41-02112A

by michdundee

Today, 12:37 PM

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: 4,178 Posts: 65,200

Last Post: cisco poe switch PSU issue

4,178

65,200

cisco poe switch PSU issue

by CapLeaker

Today, 12:44 PM

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: 301 Posts: 1,664

Last Post: NEED key for Epson WF-c5790

301

1,664

NEED key for Epson WF-c5790

by Morrisohbig

Today, 12:05 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: 2,317 Posts: 27,421

Last Post: faulty loudspeaker amplifier-no sound output

2,317

27,421

faulty loudspeaker amplifier-no sound output

by kasfamily

Today, 11:50 AM

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: 223 Posts: 3,897

Last Post: Saeco SG200E Coffee Machine

223

3,897

Saeco SG200E Coffee Machine

by mon2

Today, 10:24 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: 999 Posts: 10,858

Last Post: Post your worthless and/or pointless repairs

999

10,858

Post your worthless and/or pointless repairs

by прямо

Yesterday, 07:01 AM

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: 1,375 Posts: 19,362

Last Post: ACHI IR6500 getting it to work

1,375

19,362

ACHI IR6500 getting it to work

by mr.Data

Today, 03:30 AM

Mark Channels Read

Assistance with identifying replacement caps on ASUS P5VDZ-MX

by crosswinds

Hello,

So, pulled a motherboard out from storage, was working when put away, wont post when I took it out of storage today.
Since it was working, and it looks to be essentially time that killed it I figured its a good idea to replace the caps before digging further.
Looks to be only good quality caps on this board, so might not be the issue. But it is closing in on 20 years now so, wont hurt i guess

Its a ASUS P5VDZ-MX board.

I would really appreciate some assistance on what the best replacement caps would be for these:

Panasonic(M)...
- Channel: General Capacitor Questions & Issues
04-17-2024, 04:25 PM
M1 A2338 screen and touchbar issues after cleaning up liquid damage

by jkruns

Hello everyone,

This is my first post after browsing this wonderful treasure trove of knowledge for many, many evenings. I've decided to learn how to fix these things, properly.

My patient is an A2338 Macbook Pro M1 (late 2020).

It had some corrosion around JT710 and JT700 caused by liquid spill, as well as against the protective barrier around the USB-C chips UF000 and UF100. So I took the main board out and cleaned it with a toothbrush and alcohol, then with alcohol in an ultrasonic cleaner. Cleaned the touchbar flex connectors as well. The board looks...
- Channel: Troubleshooting Laptops, Tablets, and Mobile Devices
04-22-2024, 06:45 AM
cisco poe switch PSU issue

by madan1

Hello everyone.
I'm troubleshooting a cisco switch, which seems to have an issue with the PSU.
The psu has the following power rails - +12v, -53.5V and +3.3V
When connected to power, the +12 and -53.5 seem to work fine, but the +3.3 starts at ~3v and then goes down to ~0 (I guess this is the cap discharging). This happens both when the cable is connected and not to the switch board.
Any ideas what might be causing this behavior?
[ATTACH=JSON]{"data-align":"none","data-size":"medium","data-attachmentid":3258494}[/ATTACH]...
- Channel: Troubleshooting Power Supplies and Power Supply Design
04-23-2024, 01:58 PM
Samsung UE55H8000SZ with TCON BN41-02112A

by michdundee

Hi all,
I'm facing a issue... hope you could help me. I have a T-CON board BN41-02112A from Samsung 55inch Curve TV.
I have just only 2 status blue LEDs ON since LED3 is off. I have tried to test some test points but VON is NOT OK very close to 0V. Is there someone that can help me on the debugging the issue? I'm supplying the board from an external 12V voltage source.
Thank you in advance.
BR,
Michele
[ATTACH=JSON]{"data-align":"none","data-size":"full","data-attachmentid":3259938}[/ATTACH]...
- Channel: Troubleshooting TVs and Video Sources
Today, 12:37 PM
Thinkpad E14 Gen 2 NM-C771 - No display no fan no beep no boot

by ongobongo

Hi there,
I got this laptop which was not working at all. When attached to an amp-meter, the meter wasn't working at all also. I quickly found out that the PD-Power switch was gone and fully shorting to ground. After replacing that (NX20P5090) I got live back into the laptop.
Now the battery is charging, charge indicator is working and the power led is blinking 3 times when i attach a charger. but, unfortunately, this is it. When i push the power-button, the power led turns on, but that's it. No display, no beep, no fan spin, nothing (but cpu gets warm).
I tried flashing a new...
- Channel: Troubleshooting Laptops, Tablets, and Mobile Devices
04-19-2024, 03:01 PM
Fortinet 50E Slowing down internet throughput

by mon2

Hello. Coming to you from the laptop forum. Have a client with the Fortinet 50E that has 320 Mbps as internet input speed but only 20 Mbps output on each and every downstream port (using FAST.COM to benchmark).

Reseller is stating the Fortinet is 'worn out' which does not sound logical at all unless the flash memory is 'worn out'. They, of course, want to sell another + onsite installation fees.

Can anyone share feedback on this unit? What can cause this sluggish behavior. From our knowledge, this device is snooping on the traffic to halt viruses / hack attacks, etc....
- Channel: Troubleshooting & Designing Networks
Yesterday, 12:51 PM
TOSHIBA SATELLITE Radius 12 P20W-C-10D BIOS Password removal

by s_henya

Hi guys,

Need your help with clearing out BIOS Password.
Laptop model: TOSHIBA SATELLITE Radius 12 P20W-C-10D
P/N: PSPVVE-00300WTE
SN: YF069816S
Motherboard: H000095820

Thanks in advance!...
- Channel: BIOS Requests ONLY!
Today, 12:09 PM
faulty loudspeaker amplifier-no sound output

by Cornboats

I've several amplifiers of different sizes which are faulty. I haven't fixed them because I haven't a clue. This is the smallest culprit. 240v in (UK) and 12v dc to the board. Small neon lights when power button is on. Different dc voltages across all of the capacitors. Where do I go from here?

3 Photos
- Channel: Troubleshooting Audio Equipment
Today, 04:43 AM
Alienware 17 R3 freezing in games

by paparazzo79

Hi guys.
I own Alienware 17 r3 6820HK GTX 980M.
I purchased it recently tried some gaming (Rise of the Tomb Raider, Serious Sam) and after 10-15.min games freeze, but I could hear audio from game.
Now I am not yet at home, but when it happens I do get separate window error message and will post it later.
Then again there are moments when I could play for like an hour and no errors.
From my experience reading about this issue, this means my GPU is dying, correct?
I installed most recent nVidia drivers.
Temp of GPU while gaming is max 76 C, but usually around...
- Channel: Troubleshooting Laptops, Tablets, and Mobile Devices
04-19-2024, 12:07 PM
Macbook a2141 - logicboard 820-01700 no wifi\bt

by shlomim412

Hello
working on a2141 macbook, board number 820-01700 which has no wifi\bt and also no connection with LAN cable.

initial visual inspection the board looks good no visible corrosion or damage.

i found that PP3V3_G3S_X is shorted to ground (around 1.5ohm short)
and also PP3V3_GS3_WLAN i shorted to ground (same ohm reading, around 1.5ohm).

the board is working but no WIFI\BT as i mentioned.

with the usb c cable connected for measurement i noticed U8215 i getting EXTREMELY HOT
so i pulled it out figuring it might be causing the...
- Channel: Troubleshooting Laptops, Tablets, and Mobile Devices
04-15-2024, 01:18 PM

ASUS X542UR Touchpad problem

by Test asus

Hello,

My laptop's touchpad is not working. I have tried software, touchpad and touchpad fpc. I think the motherboard is faulty, can you share motherboard schematics or how can I fix the problem?

Model
X542UR-GQ272T

Part No
90NB0FE2-M03490

Part Desc
AS X542U 7500U/1DG5/12G/TU

Part Specification
X542UR-1BGQ/8SL/V/WAC/A08

Have a good day,...
- Channel: Troubleshooting Laptops, Tablets, and Mobile Devices
Today, 03:40 AM
Need schematic and boardview Acer CB314-1h

by milui

Brand: Acer
Model: CB314-1H
BoardA0ZBCMB6E0
Rev: E
- Channel: Schematic Requests ONLY!
Today, 09:32 AM
Samsung UE55H8000SZ with TCON BN41-02112A

by michdundee

Hi all,
I'm facing a issue... hope you could help me. I have a T-CON board BN41-02112A from Samsung 55inch Curve TV.
I have just only 2 status blue LEDs ON since LED3 is off. I have tried to test some test points but VON is NOT OK very close to 0V. Is there someone that can help me on the debugging the issue? I'm supplying the board from an external 12V voltage source.
Thank you in advance.
BR,
Michele
[ATTACH=JSON]{"data-align":"none","data-size":"full","data-attachmentid":3259938}[/ATTACH]...
- Channel: Troubleshooting TVs and Video Sources
Today, 12:37 PM
TOSHIBA SATELLITE Radius 12 P20W-C-10D BIOS Password removal

by s_henya

Hi guys,

Need your help with clearing out BIOS Password.
Laptop model: TOSHIBA SATELLITE Radius 12 P20W-C-10D
P/N: PSPVVE-00300WTE
SN: YF069816S
Motherboard: H000095820

Thanks in advance!...
- Channel: BIOS Requests ONLY!
Today, 12:09 PM
Thinkpad T15p Gen 3 BIOS cleanup requested

by trepachka

Hello,

I have this Thinkpad T15p Gen 3 laptop. It starts normally with keyboard lighting up, I can hear the fan starts spinning, amps quickly reach about 1.7A without the battery, CPU gets hot. However, it is not posting.

I suspect the BIOS is corrupted. I am providing 2 BIOS files as I see 2 BIOS 256Mb chips. I am also providing a photo of the chips' location on the motherboard.

Model: Thinkpad T15p Gen 3
S/N: PF-45G6VM
Type: 21DA-000PUS
Motherboard: NM-E221

Thank you....
- Channel: BIOS Requests ONLY!
Yesterday, 10:40 PM
LENOVO YOGA 370 CIZS3 LA-E292P REV:1A BIOS

by NConstantinou

DEAR ALL

i need bin file for above board.

Laptop turns on but no screen.

thanks...
- Channel: BIOS Requests ONLY!
Today, 08:08 AM
Saeco SG200E Coffee Machine

by mon2

Hello. Have a known good Saeco SG200E Coffee machine but the internal hose from the pump were disconnected. Would someone be kind enough to share a few clear pics of the inside of this machine so we can reconnect the hose plumbing again? Many thanks....
- Channel: Troubleshooting Appliances and other Household Electronic Stuff
Today, 10:24 AM
Dell Latitude 5510 System Password

by diosaud

Hello, I'm from Portugal, I bought a Dell latitude 5510 and I was scammed. The laptop comes with a system password and I can't even access the BIOS. I have already tried to resolve the situation through the website [url]https://bios-pw.org/[/url] but without success. This system number does not generate any password. When trying to resolve this situation I found this forum and ask for your knowledge to resolve this situation. Thank you all.https://Hello, I'm from Portugal, I ...e BIOS. I have
- Channel: Troubleshooting Laptops, Tablets, and Mobile Devices
Today, 10:22 AM
Sony LED 65X9005A shuts down after few seconds - looking for help

by tec3000

Hi community! Germany calling I am wondering if you guys can help me out. I have an issue with my Sony LED TV. I've been told this is a good place to ask. Thanks for anyone who will reply and offer advice. Appreciated!

I have a KD-65X9005A Sony 4k LED TV. For a few weeks I've got this problem where I turn on the TV and within a few seconds the TV starts getting darker until it shuts itself off and I get the 4 blinking error code. HOWEVER there is one exception: Whenever I switch to the i-Manual, a full screen on-screen instruction manual, the TV never turns off. I tested for hours!...
- Channel: Troubleshooting TVs and Video Sources
03-20-2024, 07:29 AM
Samsung ue55mu6120kxzt

by fedeRaider

Hello everyone

My TV no longer shows signs of life, but if I unplug the motherboard, the backlight works.

I bought a CH341A USB Programmer, and this is my dump (BN41-02568B):

Could someone help me fix it?...
- Channel: Troubleshooting TVs and Video Sources
Yesterday, 06:05 AM

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