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Badcaps Capacitor & Electronics Repair Forum
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All new members, PLEASE READ HERE FIRST! Posting only allowed by established members.
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45 734
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Site announcements, capacitor-related news, and anything relavant you might think of... Got News? POST IT!!
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Last Post:
235 45,075
MD HOST
by MD HOST
Document & Software Archive
Schematics and Boardviews
Share or download schematics and boardview files. Contribute your knowledge or ask questions. Before using please read our Terms of Service.
Topics: 670 Posts: 711
670 711
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: 3,226 Posts: 32,941
3,226 32,941
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: 4,540 Posts: 75,128
4,540 75,128
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: 4,090 Posts: 45,299
4,090 45,299
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: 7,220 Posts: 40,070
7,220 40,070
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: 510 Posts: 5,515
510 5,515
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: 33,905 Posts: 331,119
33,905 331,119
Sub-Forums:
BIOS Requests ONLY! (13,520/171,979)
Schematic Requests ONLY! (5,097/30,462)
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: 5,361 Posts: 76,037
5,361 76,037
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: 27,740 Posts: 378,996
27,740 378,996
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: 4,239 Posts: 65,744
4,239 65,744
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: 318 Posts: 1,726
318 1,726
Jerry Lee
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: 2,408 Posts: 27,975
2,408 27,975
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: 263 Posts: 4,373
263 4,373
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: 1,065 Posts: 11,328
1,065 11,328
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: 1,401 Posts: 19,753
1,401 19,753
Specifications
Laptop, Tablet, & Notebook Specifications
Basic specifications for laptops, tablets, & notebooks. We are constantly adding new content like boardviews, schematics, fixes, and other data here.
Topics: 101,076 Posts: 101,076
101,076 101,076
Server, iMac, & Desktop PC Specifications
Basic specifications for server, iMac, & desktop computers. We are constantly adding new content like boardviews, schematics, fixes, and other data here.
Topics: 8,712 Posts: 8,712
8,712 8,712

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There are currently 448206 users online. 4114 members and 444092 guests.

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

Badcaps Statistics

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Topics: 214,375   Posts: 1,413,532   Members: 526,574   Active Members: 20,436
Welcome to our newest member, itporadna.

Latest Topics

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  • Aadi Awan
    HP Laptop Modal 15s-du1520tu rev.3.0
    by Aadi Awan
    Hey Everyone ,
    plz need bios .
    hp 15s-du1520TU rev: 3.0
    SN# CND14628HR...
    Yesterday, 11:09 AM
  • Julian Bailey
    HP ProBook 445 G8 Battery not charging
    by Julian Bailey
    Hi all

    We have in a HP ProBook 445 G8 laptop with AMD Ryzen 7 CPU. When power is connected the power LED light blinks 5 times then stops. Normally HP laptops will blink this LED 10 times as it does a self test when the AC adaptor is inserted. So there must be some sort of short somewhere.

    The battery doesn't charge, and is erratic on the MM voltage. Bench PSU LED pulsates when the battery is connected also. So the fault must be on the charging circuit?

    I have gone around the board with a MM and cant find anything

    Windows shows the battery fine,...
    Yesterday, 10:34 AM
  • allietti
    PS4 PSU Schematic for N160A003L
    by allietti
    anyone have the schematic or simple pictures of the backside of N160A003L PSU for PS4??? i need some clues about 5v fault
    09-21-2024, 11:38 AM
  • SomnusDisney013
    DELL OptiPlex 5050 SFF
    by SomnusDisney013
    Can clear ME region this BIOS?
    Dell OptiPlex 5050 SFF
    SN: D0FX7N2
    Motherboard: V1PN4...
    10-08-2024, 04:33 AM
  • objecttothis
    Need Help Sourcing HDMI connector for GPU
    by objecttothis
    I have an MSI Ventus 3X OC nVIDIA RTX 3070 with a damaged HDMI connector. The display is recognized but no display output due to the damaged right-side of the connector. I've got the board apart and the back of the HDMI connector is stamped Astron. The problem is that their site has 30 pages of HDMI type A connectors ([URL]http://astron.com.tw/eng/product.php?idt=1&pid=3&cid=1[/URL]). Does anyone know how to determine which part numbers are compatible and then where to source them?




    Also, I have some experience soldering but this will probably be the most...
    Yesterday, 12:51 PM
  • h3ct0r
    T15g Bricked BIOS - Which chip has the BIOS?
    by h3ct0r
    Hello, after what is seems like a bad BIOS firmware upgrade, the machine had extrange visual glitches and froze.
    The laptop now does not turn on as normal, and does not make post or show the BIOS page: It will stay at a blank page with beeping sounds: [URL]https://youtu.be/OC2o9_b1RQ0[/URL]

    I'm planning to flash the bios chip with a CH341A, but it seems that they are three chip candidates:[LIST=1][*]Winbond 25Q80DVSIG (3V 8M-bit) Located on the GPU board[*]MXIC 25U8035F (1.8V 8M-bit) Located on the GPU board[*]Winbond 25Q80DVNIG (3V 8M-bit) Located on the CPU board[*]Winbond...
    Yesterday, 08:35 PM
  • Document Archive
    HP Pavilion 15-BS 250 G6 (CSL50 CSL52) Laptop Schematic
    by Document Archive
    HP Pavilion 15-BS 250 G6 Laptop Schematic
    CSL50 CSL52 LA-E801P...
    10-08-2024, 07:48 AM
  • signal.quest
    Samsung LN40C630K1F LCD TV No Backlights and Flashlight Test Fail
    by signal.quest
    Hi all,

    I have been working on a Samsung LN40C630K1F LCD TV. On power up the backlights only briefly light up when first powered on then they go out (2 seconds to black). The flashlight test also fails. The sound works fine. Please see attached pics.

    I have researched the forums a lot. I have watched the videos of trying to locate the bad CCFL or transformer and bypassing. I can't find any evidence of a bad transformer/CCFL. I verified I get 376V from the big caps to the fuse. I have used a small/cheap oscilloscope and it looks like the MOSFETs on the inverter...
    09-30-2024, 11:21 PM
  • Exotics
    Logitech Z5500 problem need help fixing
    by Exotics
    Here's a video I uploaded to show the problem.
    [url]https://youtu.be/MbaZQ7aYMMY?feature=shared[/url]

    Quality isn't 1080p yet because I just uploaded it. YouTube takes a while to process videos to maximum quality.

    I have a multimeter and basically no electrical fixing knowledge.

    I came across a post on here describing the same issue if it helps y'all help me. -> [url]https://www.badcaps.net/forum/troubleshooting-hardware-devices-and-electronics-theory/troubleshooting-audio-equipment/38880-another-logitech-z5500-done-today[/url]

    please...
    10-04-2024, 06:17 AM
  • cheebster
    Macbook Air 2020 A2179 Internet Recovery and Battery Issues
    by cheebster
    Hello, i have a batch of 10 Macbook Pros A2179 bought from a Costco return wholesaler.


    The 10 of them show the exact same behavior;

    They auto power on, to internet recovery spinning globe, fans to 100%.

    Power consumption on USB-C port is 0.43a, shuts down as soon as unplugged. Battery doesn't charge at all. However, it boots to 20V on the Ampmeter.

    Based on their iBridge versions (4.x and 5.x) these were shelfed for a long time.

    All of them power on the same way; 100% fans, shut down as soon as they are unplugged. Removing...
    10-09-2024, 06:23 AM

Trending

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  • objecttothis
    Need Help Sourcing HDMI connector for GPU
    by objecttothis
    I have an MSI Ventus 3X OC nVIDIA RTX 3070 with a damaged HDMI connector. The display is recognized but no display output due to the damaged right-side of the connector. I've got the board apart and the back of the HDMI connector is stamped Astron. The problem is that their site has 30 pages of HDMI type A connectors ([URL]http://astron.com.tw/eng/product.php?idt=1&pid=3&cid=1[/URL]). Does anyone know how to determine which part numbers are compatible and then where to source them?




    Also, I have some experience soldering but this will probably be the most...
    Yesterday, 12:51 PM
  • Julian Bailey
    HP ProBook 445 G8 Battery not charging
    by Julian Bailey
    Hi all

    We have in a HP ProBook 445 G8 laptop with AMD Ryzen 7 CPU. When power is connected the power LED light blinks 5 times then stops. Normally HP laptops will blink this LED 10 times as it does a self test when the AC adaptor is inserted. So there must be some sort of short somewhere.

    The battery doesn't charge, and is erratic on the MM voltage. Bench PSU LED pulsates when the battery is connected also. So the fault must be on the charging circuit?

    I have gone around the board with a MM and cant find anything

    Windows shows the battery fine,...
    Yesterday, 10:34 AM
  • retrorepair
    SONY KDL-40P3600 Picture Problem
    by retrorepair
    Hello gurus, hope you can assist me...

    I have a Sony KDL.40P3600, with an issue on the left side of the screen (pictures attached).

    I think the problem is the panel, but before send it to trash, i would like to get a second opinion.

    Thanks in advance.
    Yesterday, 05:12 PM
  • Francesc V.
    Samsung UE48J6200K - No image but sound
    by Francesc V.
    Hi:

    This TV turns on and it can show picture for some seconds (sometimes minutes) then picture freezes and fades away. What I've seen so far is that the T-Con (BN41-021101A) starts with three leds on, but as soon as led3 turns off, just 12V and 3.3V (the bold ones) remains in the PCB but all others disappear.

    If I remove the 2 bellow ribbons, LED2 never turns on. I was trying to look for the "T-CON ready" pin to shorten with 3.3V and then test just the TCON without the panel (haven't found it yet)

    Not sure how to proceed here..............how can...
    10-09-2024, 07:01 AM
  • h3ct0r
    T15g Bricked BIOS - Which chip has the BIOS?
    by h3ct0r
    Hello, after what is seems like a bad BIOS firmware upgrade, the machine had extrange visual glitches and froze.
    The laptop now does not turn on as normal, and does not make post or show the BIOS page: It will stay at a blank page with beeping sounds: [URL]https://youtu.be/OC2o9_b1RQ0[/URL]

    I'm planning to flash the bios chip with a CH341A, but it seems that they are three chip candidates:[LIST=1][*]Winbond 25Q80DVSIG (3V 8M-bit) Located on the GPU board[*]MXIC 25U8035F (1.8V 8M-bit) Located on the GPU board[*]Winbond 25Q80DVNIG (3V 8M-bit) Located on the CPU board[*]Winbond...
    Yesterday, 08:35 PM
  • Aadi Awan
    HP Laptop Modal 15s-du1520tu rev.3.0
    by Aadi Awan
    Hey Everyone ,
    plz need bios .
    hp 15s-du1520TU rev: 3.0
    SN# CND14628HR...
    Yesterday, 11:09 AM
  • CesarTurboPC
    Samsung UN55MU6103F IC1604 dump
    by CesarTurboPC
    Could you help me... I have a Samsung UN55MU6103F with the following problem, dead TV, I disconnect the main power supply and the leds light up. I know it is a problem in the firmware in the IC SPI Flash W25Q40CL (IC1604)

    The model of my TV is
    UN55MU6103F
    Power supply BN44-00807A
    Main Board BN41-02568B

    Could you help me to repair the dump please. Thank you.

    I leave my backup of the dump and a little extra, it is the schematic of the power source, it can be useful to someone. Regards



    Me podrian ayudar... tengo un...
    01-31-2023, 12:30 PM
  • ceak
    Sony OLED XBR65A8G no video, PSU problem?
    by ceak
    Hi, I bought a defective OLED Tv thinking I would just replace the defective board and make it work. The problem was that the TV would turn on with sound but no image. I replaced the TCON first, didn't do anything so I replaced the main board and psu boards too but to my surprise the problem is still there.

    So I began testing the PSU to see if at least all voltages were good. What I found is that all the voltages seem good (standby, AC_On, TCON_12v and PWR_On). The missing voltages seem to be EVDD and I'm not sure if BL_ERR should be high or low and if EVDD_ON should be just a pulse...
    01-21-2021, 05:55 PM
  • Stephen
    A2338 MacBook Pro M1 Issue with DFU Restore or revive.
    by Stephen
    Customer came in with a board issue, board looks clean, board turns on, he did a software update and he got the infamous Apple boot loop logo. He took it to Apple and Apple said he needed a new board. They attempted to DFU revive restore etc no luck. The board is stuck on the (!) point. I tried DFU myself and no luck. Nothing, board boots up goes into DFU computer turns on with Apple logo when applying the patch and nothing it gets stuck at halfway point and hangs on. I was wondering if anyone has had any experience with this particular issue. Board isn't liquid damage from what I can tell...
    Yesterday, 11:14 AM
  • ZOrd_Z
    Nikon D3 / D3s external dc power conector.
    by ZOrd_Z
    Hello!!

    I'm trying to find some place to buy a specific Nikon DC plug [B][URL="https://www.maritimusboote.de/Nikon-AC-Adapter-EH-6/pt"]Nikon AC Adapter EH-6[/URL][/B]

    Just the jack or jack with cable.

    This is to implement a bunch of cameras for a lot of time...

    Anyone has an idea where to get the jacks at a "decent price"?​

    Thank's...Hello!!

    I'm trying to find some place to buy a specific Nikon DC plug [B][URL="https://www.maritimusboote.de/Nikon-AC-Adapter-EH-6/pt"]Nikon AC Adapter EH-6[/URL][/B]
    10-10-2024, 07:28 PM
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