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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: 732
45 732
Announcements & Related News
Site announcements, capacitor-related news, and anything relavant you might think of... Got News? POST IT!!
Topics: 234 Posts: 41,066
234 41,066
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
1 3
xaruqui
by xaruqui
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: 3,167 Posts: 32,575
3,167 32,575
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: 4,492 Posts: 74,740
4,492 74,740
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: 3,946 Posts: 44,144
3,946 44,144
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: 6,700 Posts: 36,759
6,700 36,759
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: 499 Posts: 5,433
499 5,433
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: 31,431 Posts: 298,344
31,431 298,344
Sub-Forums:
BIOS Requests ONLY! (12,526/149,548)
Schematic Requests ONLY! (4,666/28,030)
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: 5,310 Posts: 75,635
Last Post: ASUS VP228
5,310 75,635
lotas
by lotas
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: 27,373 Posts: 373,511
27,373 373,511
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: 4,159 Posts: 65,058
4,159 65,058
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: 1,654
299 1,654
tuan nguyen
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: 2,306 Posts: 27,324
Last Post: VSP-M1
2,306 27,324
Carm99
by Carm99
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: 216 Posts: 3,863
216 3,863
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: 987 Posts: 10,797
987 10,797
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: 19,302
Last Post: Trinoculars
1,369 19,302
harp
by harp

What's Going On?

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There are currently 578009 users online. 3963 members and 574046 guests.

Most users ever online was 1,196,122 at 03:31 PM on 12-14-2023.

Badcaps Statistics

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Topics: 101,432   Posts: 1,259,960   Members: 486,828   Active Members: 16,975
Welcome to our newest member, Ya_Dron.

Latest Topics

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  • Satvik Hardat
    Well I am dumb to buy a faulty water damaged motherboard from ebay and i need help :)
    by Satvik Hardat
    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...
    03-19-2024, 05:00 AM
  • chth96
    desoldered capacitor is self charging until 0.6 voltage.
    by chth96
    I have an 21 inch CRT TV which is not able to power on.
    I disassembled 21 inch CRT TV and measured voltage of main filter capacitor(Samhwa HC 400WV 220uF) in the circuit.
    It shows 270V on my DMM.

    So I discharged this main filter capactior completely and detached circuit board from cathode-ray tube.
    Then I desoldered this main filter capacitor from circuit board.
    But I noticed that this desoldered large capacitor(Samhwa HC 400WV 220uF) is slowly charged by itself until it reached 0.6V

    I measured its ESR value with MESR-100 and it shows 0.1 ohm,judging...
    Today, 08:56 AM
  • mecha1166
    QN750Q8FNBFXZA Service Error Codes Needed - Error code 1-3-1-2 ? Dead set, only blinking standby light in repeating sequence
    by mecha1166
    I am working on a QN750Q8FNBFXZA. Dead except the standby light. It blinks what appears to be 1 3 1 2. 1 long blink, pause, 3 short, pause, 1 long, pause, 2 short, pause, repeat. A service manual would be very helpful, or if anyone knows these error codes. Thanks!
    Today, 08:31 AM
  • smartie91
    ASUS VP228
    by smartie91
    [B]ASUS VP228 Monitor main board 715G7588-M04-B02-004Y [/B]

    Hi i have a asus monitor which will not display HDMI, vga works ok , i know its the monitor and not cable as i have 2 monitors idenical and devices work ok on other monitor but just swapping monitor dont display , i am looking for a schmatic of the main board if anybody can help please

    thank you
    [B]ASUS VP228 Monitor main board 715G7588-M04-B02-004Y [/B]

    Hi i have a asus monitor which will not display HDMI, vga works ok , i know its the monitor and not cable as i have 2 monitors idenical and devices
    Yesterday, 05:59 AM
  • souaqi01
    Hp Probook 440 G10 Bios Needed
    by souaqi01
    hi any one help plz fore remove password hp probook 440 g10.
    SN : 5CD3161ZST​
    [ATTACH]n3233633[/ATTACH]...
    03-12-2024, 11:11 AM
  • pabloroggeri
    IdeaCentre B320 - CIH61S V1.0 schematic
    by pabloroggeri
    Hello community​

    I need schemaic for Lenovo Ideacentre B320

    motherboard: CIH61S V1.0

    Thanks...
    Today, 07:48 AM
  • Fronczek
    Lenovo Legion Y520-15IKBM - No power besides the main rail
    by Fronczek
    Hello people,
    I've got this laptop not working for repairs, and as you can see something was done to it as you can see in the coils PL58XX (which I for some reason cannot find in the schematics...) The first FET (PQ201) was not an original part and a questionable one at that and the second one (PQ202) was shorted. Both are N-channel. Ordered replacements for them and replaced them after arrival. Now I have encountered another problem: there is no power at the second FET. By following the thread linked I got to the injection part. Applied 0.8V at 1.5A, but couldn't feel anything getting hot,...
    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!
    Today, 04:18 AM
  • reformatt
    LCD Connector identify or source
    by reformatt
    Trying to identify where to source the LCD connectors on the motherboard side for a HP 14-cf2051la. This one came in with liquid damage to the connector and the flex cable. It appeared to clean up ok, however customer says that display blanks out intermittently. It's a 30 pin EDP flat ribbon cable on motherboard side. Believe it to be a HEDWIG-6050A3155301-MB-A01 motherboard.

    I've stolen the connector from another HP motherboard which matches up but it's not the best since it's been kicking around my donor pile for a while. This connector is different to most flip type ones I have...
    03-25-2024, 08:29 PM
  • maneatingmonkey
    Missing LCD Panel Voltages VGH, VGL, VCOM (TCL 55P6US Sound & Backlight but NO Picture)
    by maneatingmonkey
    [SIZE=14px][FONT=Arial]I have a TCL 55P6US with sound and backlight but no picture. This model does not have a T-CON board, and the right (rear perspective) panel board is fed from the left panel board. I have not been able to induce any change by disconnecting the secondary panel board or the tape cut-off method on the primary board.

    There are a bunch of voltages missing on the panel boards. I can't find any shorted caps of the panel boards, and all of the missing voltage rails read in the kiloohms, which leads me to suspect the issue may lie on the circuit board, rather than a short
    ...
    Yesterday, 07:17 AM
  • nissimezra
    NB6098_MB_V7 bios bin file
    by nissimezra
    Device: Laptop
    Brand: Redmibook
    Model: Redmibook Pro 14 AMD 6800H
    Board number: NB6098_MB_V7
    Serial number: couldn't find serial it's in chinese
    Request: BIOS dump
    Problem,: Black screen


    Many thanks​
    03-19-2024, 06:17 PM

Trending

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  • pabloroggeri
    IdeaCentre B320 - CIH61S V1.0 schematic
    by pabloroggeri
    Hello community​

    I need schemaic for Lenovo Ideacentre B320

    motherboard: CIH61S V1.0

    Thanks...
    Today, 07:48 AM
  • Fronczek
    Lenovo Legion Y520-15IKBM - No power besides the main rail
    by Fronczek
    Hello people,
    I've got this laptop not working for repairs, and as you can see something was done to it as you can see in the coils PL58XX (which I for some reason cannot find in the schematics...) The first FET (PQ201) was not an original part and a questionable one at that and the second one (PQ202) was shorted. Both are N-channel. Ordered replacements for them and replaced them after arrival. Now I have encountered another problem: there is no power at the second FET. By following the thread linked I got to the injection part. Applied 0.8V at 1.5A, but couldn't feel anything getting hot,...
    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!
    Today, 04:18 AM
  • chth96
    desoldered capacitor is self charging until 0.6 voltage.
    by chth96
    I have an 21 inch CRT TV which is not able to power on.
    I disassembled 21 inch CRT TV and measured voltage of main filter capacitor(Samhwa HC 400WV 220uF) in the circuit.
    It shows 270V on my DMM.

    So I discharged this main filter capactior completely and detached circuit board from cathode-ray tube.
    Then I desoldered this main filter capacitor from circuit board.
    But I noticed that this desoldered large capacitor(Samhwa HC 400WV 220uF) is slowly charged by itself until it reached 0.6V

    I measured its ESR value with MESR-100 and it shows 0.1 ohm,judging...
    Today, 08:56 AM
  • mecha1166
    QN750Q8FNBFXZA Service Error Codes Needed - Error code 1-3-1-2 ? Dead set, only blinking standby light in repeating sequence
    by mecha1166
    I am working on a QN750Q8FNBFXZA. Dead except the standby light. It blinks what appears to be 1 3 1 2. 1 long blink, pause, 3 short, pause, 1 long, pause, 2 short, pause, repeat. A service manual would be very helpful, or if anyone knows these error codes. Thanks!
    Today, 08:31 AM
  • samstown
    Hiopos - Cash Touch - Doesn't turn on
    by samstown
    Hello,

    I have this Hiopos Cash system running on android that stopped working without notice. The power supply is ok, there's light on motherboard but when pressing power button it doesn't turn on.
    I've google for schematics but no luck. Motherboard is S2802_V1.3B. I've took some measure and maybe it could be a transistor, the one I am pointing on with the orange arrow on the pics. Does anyone knows this board ?


    Thanks
    Sam...
    Yesterday, 07:26 AM
  • Egidio85
    need bios acer N20C2 FH52M LA-J891P
    by Egidio85
    hi, can anyone be kind enough to create the bios file for me? I attach the backup I read and the original bios downloaded from the Acer website

    serial NHQ8KET00204410E333400

    THANKS...
    Today, 02:37 AM
  • egelaptop
    macbook pro a1278 clean me
    by egelaptop
    Hello, can someone help me clean the area of my original file?
    820-3115-B
    There was slj8c on the device. I wanted to say that I read that slj8e works on many devices, but I could not get an image. I want to try it with a region-cleared file....
    Today, 04:35 AM
  • bohaboha
    LG49UH603v No image backlight on
    by bohaboha
    On this set new LED strip. Backlight on but no image
    have discovered very hot ic in red market in the picture plus some capacitor that are shorted on mainboard ,3v,5v,and 12v is in present want help deciding which is the bad boy...
    03-26-2024, 05:27 PM
  • Satvik Hardat
    Well I am dumb to buy a faulty water damaged motherboard from ebay and i need help :)
    by Satvik Hardat
    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...
    03-19-2024, 05:00 AM
  • Donny2derby
    Sony KD 49X8307C
    by Donny2derby
    Hi again all. Picked the above model up a couple of days ago. Information was that it just stopped working all of a sudden. Was from a nice house with no kids or pets and no reason to think it's suffered impact damage.

    Working my way through it. I get a flashing silver light on the front which indicates an attempt to start?? Then it turns off and doesn't attempt to reboot.

    Had the back panel off and with the plugs disconnected to the backlights, on the connectors I'm getting 63v DC on CN 6801 and 4.0v DC on all pins on CN 6802. All except the not connected ones I should...
    02-21-2024, 03:56 PM
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