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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
45 733
Announcements & Related News
Site announcements, capacitor-related news, and anything relavant you might think of... Got News? POST IT!!
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233 43,500
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: 3 Posts: 9
3 9
kasun nirosh
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: 3,204 Posts: 32,833
3,204 32,833
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: 4,522 Posts: 75,018
4,522 75,018
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: 4,024 Posts: 44,847
4,024 44,847
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: 7,030 Posts: 38,612
7,030 38,612
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: 507 Posts: 5,497
507 5,497
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: 32,922 Posts: 317,446
32,922 317,446
Sub-Forums:
BIOS Requests ONLY! (13,119/162,108)
Schematic Requests ONLY! (4,938/29,484)
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: 5,342 Posts: 75,820
5,342 75,820
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: 27,586 Posts: 376,217
27,586 376,217
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: 4,213 Posts: 65,534
4,213 65,534
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: 309 Posts: 1,698
Last Post: canon TS207
309 1,698
eulah
by eulah
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: 2,363 Posts: 27,712
2,363 27,712
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: 240 Posts: 4,125
240 4,125
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: 1,041 Posts: 11,172
1,041 11,172
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: 1,391 Posts: 19,588
1,391 19,588

What's Going On?

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There are currently 493960 users online. 4529 members and 489431 guests.

Most users ever online was 1,342,976 at 10:51 PM on 04-26-2024.

Badcaps Statistics

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Topics: 103,695   Posts: 1,289,322   Members: 509,839   Active Members: 19,010
Welcome to our newest member, tecbauer.

Latest Topics

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  • howardc64
    Where do repair shops buy MB replacement batteries?
    by howardc64
    Order my parts from mobilesentrix.com and iPhone batteries have been excellent. Recently got 3x bad A1534 (2015) batteries. All would work until ~30-40+% and drop to < 10% instantly. Typical sign of cheap batteries.

    Perhaps the less popular A1534 model's aftermarket batteries are more source limited. Just find it surprising quality from mobilesentrix (usually fairly high quality aftermarket parts) have been so poor.

    BTW, this isn't the only defective parts I've had from mobilesentrix. Amongst others including iPad Air touch screen and A1989 touch bar (display was...
    Today, 10:42 AM
  • Zilicon
    Y4 diode identification
    by Zilicon
    Please help me identify this zener diode.
    I find it hard to see the datasheet. The diode was found on 14TB 3.5" WD HDD

    I'm looking into having it replaced.

    Pictures attached...
    Yesterday, 09:34 AM
  • inck243
    Acer e15-e5-576g-5762 bricked. Bios chip won't interface in AsProgrammer.
    by inck243
    Thanks for any help. The board version is DAZAARMB6E0 REV: E. The bios chip is winbond 25Q64JVSIQ1736. W25Q64JV is not available in AsProgrammer -- only BV CV FV or FW_1.8c. The chip won't interface with asProgrammer and a CH341A. When I have this chip on the board, the laptop will not post but when I plug it in to power, the blue LED lights up, also the orange when the battery is connected. When I push the power on button, keyboard backlight turns on and the fan starts briefely then turns off. But I can't do anything to program this bios chip so I bought another one.

    The BIOS...
    Today, 09:17 AM
  • danro
    Owon HDS2202S oscilloscope
    by danro
    Hi all,

    I have this OWON HDS2202S oscilloscope that worked fine until it was used with the wrong probes mounted in the wrong place.
    It is not completely dead, it still fulfills some functions. I opened it and found some damaged components inside. I have identified the rest but I cannot identify this IC. I don't think I can find the diagram, but can someone help me identify this component?
    It seems to be an LDO regulator. I identified it like this:
    Pin1 - Vin
    Pin2 - GND
    Pin3 - ? (connected with pin1)
    Pin4 - ADJ ? (resistive divider between Vout and...
    Today, 10:46 AM
  • hikomalek
    TV LG39LN575S, no backlight power, EAX64905301(2.2), MAP3202
    by hikomalek
    Hello,
    I would be really grateful for your suggestion how to repair a [B]no backlight power[/B] on TV LG39LN575S. There is a visible menu on a screen when I use external torch (so logic board and panel works correctly), there is just no backlight.

    I have connected a logic board which is turning on power board and [B]disconnected LED backlight cable[/B].

    Power board:
    REV2.0 2013.03.28
    [B]PCB: EAX64905301(2.2)[/B]
    LGIT PCB P/N: 3PCR00184A

    IC LED driver MAP3202

    MAP3202 voltages:
    (1) EN = 2.75V
    (2) VCC = 12.05V...
    Today, 10:30 AM
  • vladprogressive
    HELP to find out the value of the resistor HP Elitebook 840 G10
    by vladprogressive
    Hello everyone, please help me find out the value of this resistor in the photo. Unfortunately, it flew away during desoldering, and pc don't power on without.
    It is located next to the EC BIOS on the Bottom of the motherboard Hp Elitebook 840 G10
    You can measure it directly with tester
    I can't find schematic and boardview for this laptop 😓

    Thank you!

    Today, 10:29 AM
  • smic717394
    iphone XS turns off when press on screen.
    by smic717394
    Hi,

    I have a iphone XS that came in for a screen replacement, the screen was badly cracked, and inside missing scues, on the back of the screen still the blue protector, the screen was a LCD. So we replaced the screen and all good, installed the screen and we noticed that pressing the screen with a bit of force but not excessive, the phone dies. After plugging the charger it turns back on, but again if you press it it dies. I open the phone again, and I can't see anything major, with the phone open, if I press on the logic board, battery, charging board, or even putting pressure on...
    Today, 10:16 AM
  • Chesson
    HP ZBook Fury 16 G10 BIOS unlock
    by Chesson
    Please help unlock/remove Bios password, THX!!!!

    Product Name : HP ZBook Fury 16 G10 Mobile Workstation PC
    Serial Number: 5CG4280B07
    SKU : 920Y5EC#AB2
    BuildID : 23WWVACZ601#SAB2#DAB2
    Feature Byte : 476J6S6b7B7M7Q7U7W7m7s8uaBapaqauawb8cAeMfPguhkk8mEmVn7nVngpDpVpnpqprqMqkqzr4.88
    System Board CT Number : PSBKQ00WBJQ037

    [ATTACH]n3316205[/ATTACH] ​Please help unlock/remove Bios password, THX!!!!

    Product Name : HP ZBook Fury 16 G10 Mobile Workstation PC
    Serial Number: 5CG4280B07
    SKU : 920Y5EC#AB2
    BuildID : 23WWVACZ601#SAB2#DAB2...
    Today, 10:16 AM
  • imadam123
    Hp z420 power cycling, then 4 beeps when PSU plug removed
    by imadam123
    I have an old hp z420 workstation. When I power it on, it just power cycles. When I disconnect the power cable there is 4 long beeps and a red light at the power button. I've tried all the troubleshooting steps and none have worked
    The 4 red beeps should be an indication of a bad PSU, but I've already tried a new one and there's no difference
    07-19-2024, 10:15 PM
  • gcrezz
    GV-N2060OC-6GD REV 2.0 GIGABYTE video card troubleshooting assistance needed.
    by gcrezz
    The issue with this video card is the HDMI port. Specifically on pin 19 (Diode checks on all other pins are normal). When i do a diode check on it from the pin on the board itself, I have nothing. There is also no short on the pin. Resistance reads about 200k. Normally on any HDMI pin 19 I would expect some voltage drop anywhere from .5v to 1.2v but here, I have nothing. The card is operational and can be used via the displayPort ports, but not through the HDMI. Attached you will find the pdf schematics for the card on page 22. I have verified that all of the resistors on this line before the...
    Today, 09:49 AM

Trending

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  • briztech
    identify missing caps/values on Matebook D15 DAH98NMB8C0 REV C HF
    by briztech
    Hi can anyone identify missing caps/values on Matebook D15 DAH98NMB8C0 REV C HF - Thanks

    Today, 06:18 AM
  • smic717394
    iphone XS turns off when press on screen.
    by smic717394
    Hi,

    I have a iphone XS that came in for a screen replacement, the screen was badly cracked, and inside missing scues, on the back of the screen still the blue protector, the screen was a LCD. So we replaced the screen and all good, installed the screen and we noticed that pressing the screen with a bit of force but not excessive, the phone dies. After plugging the charger it turns back on, but again if you press it it dies. I open the phone again, and I can't see anything major, with the phone open, if I press on the logic board, battery, charging board, or even putting pressure on...
    Today, 10:16 AM
  • javivi
    BIOS Asus UX425UAZ !!!
    by javivi
    Hi Please I need bios for Asus Ux425UAZ Main Board Rev 2.0 NB2569_pcb_mb_v2.
    Now Laptop Start but no image.
    Thanks...
    Today, 09:34 AM
  • inck243
    Acer e15-e5-576g-5762 bricked. Bios chip won't interface in AsProgrammer.
    by inck243
    Thanks for any help. The board version is DAZAARMB6E0 REV: E. The bios chip is winbond 25Q64JVSIQ1736. W25Q64JV is not available in AsProgrammer -- only BV CV FV or FW_1.8c. The chip won't interface with asProgrammer and a CH341A. When I have this chip on the board, the laptop will not post but when I plug it in to power, the blue LED lights up, also the orange when the battery is connected. When I push the power on button, keyboard backlight turns on and the fan starts briefely then turns off. But I can't do anything to program this bios chip so I bought another one.

    The BIOS...
    Today, 09:17 AM
  • survivalbloke
    ASUS TUF Gaming 15 FX506L - no power
    by survivalbloke
    ASUS Model FX506L-AS51
    SN: N6NRCX13L083269

    No power. I've located a rail shorted to ground. Injection 0.9v 5a, draws 2.4a and thermal shows 1 mosfet and 1 VRAM module heating up. Is it possible just that mosfet is shorted and everything else is OK?...
    Today, 06:51 AM
  • smic717394
    Mac Air A1466 not starting
    by smic717394
    Hi guys,

    I have a Mac air A1466 2015 8GB, it came dead, no light on charger, nothing. The current on the psu was about 45mah. After reflowing the SMC, not I get light on the charger, its charging the battery, cpu has 1,8V, ram vas voltage, ssd too. So when pressing the power button with the battery in the current jumps to about 1,8A, without the battery, when its off, its about 40mah, pressing the power goes to agout 500mah, cpu gets warm, ram too, but no fan spin and no image. I know its coming on because I see the current change on the psu.

    The cpu has about 6,8ohm,...
    Today, 07:47 AM
  • FiguringITout
    MSI Raider GE75 - Not posting, probable dead CPU
    by FiguringITout
    Hello, today I'm working on this lovely MSI Raider GE75 gaming laptop which I bought to flip. Unfortunately, I believe the CPU is toast but I wanted a second opinion before I chucked it into my spare parts bin. I will not have most tools with me today as I'm away from my workbench but I have the basics (a good multimeter, a horrible iron, a solid screwdriver, and my trusty thermal cam). I do not have the original 230w charger, but I have a Dell 180w which was sold with the device and reportedly "worked fine for them".

    Specs: I7-10750H, RTX 2060, 32GB RAM (unknown manufacturer)...
    Today, 07:27 AM
  • danro
    Owon HDS2202S oscilloscope
    by danro
    Hi all,

    I have this OWON HDS2202S oscilloscope that worked fine until it was used with the wrong probes mounted in the wrong place.
    It is not completely dead, it still fulfills some functions. I opened it and found some damaged components inside. I have identified the rest but I cannot identify this IC. I don't think I can find the diagram, but can someone help me identify this component?
    It seems to be an LDO regulator. I identified it like this:
    Pin1 - Vin
    Pin2 - GND
    Pin3 - ? (connected with pin1)
    Pin4 - ADJ ? (resistive divider between Vout and...
    Today, 10:46 AM
  • howardc64
    Where do repair shops buy MB replacement batteries?
    by howardc64
    Order my parts from mobilesentrix.com and iPhone batteries have been excellent. Recently got 3x bad A1534 (2015) batteries. All would work until ~30-40+% and drop to < 10% instantly. Typical sign of cheap batteries.

    Perhaps the less popular A1534 model's aftermarket batteries are more source limited. Just find it surprising quality from mobilesentrix (usually fairly high quality aftermarket parts) have been so poor.

    BTW, this isn't the only defective parts I've had from mobilesentrix. Amongst others including iPad Air touch screen and A1989 touch bar (display was...
    Today, 10:42 AM
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