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Badcaps Capacitor & Electronics Repair Forum
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45 733
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Site announcements, capacitor-related news, and anything relavant you might think of... Got News? POST IT!!
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235 42,498
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
2 5
BAKEEL1990
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: 3,194 Posts: 32,736
3,194 32,736
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: 4,507 Posts: 74,893
Last Post: Copy-protected DVDs
4,507 74,893
stj
by stj
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: 3,994 Posts: 44,527
3,994 44,527
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: 6,895 Posts: 37,719
6,895 37,719
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: 502 Posts: 5,457
502 5,457
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: 32,277 Posts: 308,753
32,277 308,753
Sub-Forums:
BIOS Requests ONLY! (12,867/156,119)
Schematic Requests ONLY! (4,819/28,878)
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: 5,332 Posts: 75,746
5,332 75,746
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: 27,506 Posts: 375,310
27,506 375,310
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: 4,196 Posts: 65,350
4,196 65,350
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: 306 Posts: 1,687
Last Post: Bios Canon mg 6853
306 1,687
Santana26
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: 2,343 Posts: 27,606
2,343 27,606
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: 227 Posts: 3,940
227 3,940
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: 1,020 Posts: 10,965
1,020 10,965
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: 19,499
1,382 19,499

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There are currently 341990 users online. 3994 members and 337996 guests.

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

Badcaps Statistics

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Topics: 102,928   Posts: 1,276,687   Members: 498,645   Active Members: 17,771
Welcome to our newest member, Xinchilla.

Latest Topics

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  • Nicktronic
    Westinghouse W55UW4620 No Video
    by Nicktronic
    Ok, so I know I know, it's a Westinghouse....lol It's got the backlights but no video. Likely the panel, but I'd like to take some measurements on the buffer board with help from you experts to confirm. See the attached pictures. In pic #1, there's a nice pin reference to use to take some measurements. The large IC in pic #7 gets up to 60degC when the TV is on.

    So, backlights, no video, go! 🙂...
    Today, 03:21 PM
  • paulyboy
    Help with IC identification it's lettering is CW0Q
    by paulyboy
    My microscope is not getting power and upon opening I have found an Ic that's burnt it's lettering is CW0Q and it has 6 pins looks to be sot23-6 package.

    Thanks

    Ps will upload Pic shortly
    Yesterday, 02:54 AM
  • Omron
    Need someone to look picture to say if this is normal or not [Uploaded in post]
    by Omron
    Guys I have set top box which has no power on in specific case. When I insert antenna plug which has 12V on it because of dB gain device on top of antenna, device if its turned off, it will not turn on.
    After I need to open the case and short + and - on ABS10 chip and after that device will turn on, without antenna plugged in, after its turned on I can plug in antenna and it will work fine, but I notice there is some extra heat inside the unit.

    Is this chip okay? Rectifier bridge ABS10 JQC I don't think there should be connection like additional diode between plus and minus...
    Yesterday, 03:09 AM
  • Deby
    LA-G871P Rev. 1.0 (Dell Latitude 7400) Hi res Scans, BRD & PDF Schematic
    by Deby
    CPU: i5-8365U

    1.Scanned motherboard in 1200DPI
    2.Schematic in PDF [ATTACH]n3283457[/ATTACH]
    3.Boardview in PDF [ATTACH]n3283456[/ATTACH]
    4.Boardview in CAD (open with BoardViewer 2.1.0.8) [ATTACH]n3283455[/ATTACH]

    [URL=filedata/fetch?filedataid=339320][ATTACH=JSON]{"data-align":"none","data-size":"small","data-attachmentid":3283458}[/ATTACH][/URL] [URL=filedata/fetch?filedataid=339321][ATTACH=JSON]{"data-align":"none","data-size":"small","data-attachmentid":3283459}[/ATTACH][/URL]...
    Today, 03:11 PM
  • Clarify4082
    Identify Component (Mosfet?) from Lenovo Battery
    by Clarify4082
    Hi,

    I´ve a replacement Lenovo Battery with liquid damage

    The component (I believe) a Mosfet is gone and I can´t find anything online. The marking is: 3108H1 D54FHJ
    Please find the pictures attached.

    Thanks [ATTACH=JSON]{"alt":"Click image for larger version Name:\tlenovo_battery.png Views:\t0 Size:\t1.27 MB ID:\t3283440","data-align":"none","data-attachmentid":"3283440","data-size":"custom","height":"525","width":"802"}[/ATTACH]...
    Today, 02:49 PM
  • bohaboha
    Hilti Battery B22 4.0 blink green but not responding
    by bohaboha
    The HILTI CPC battery flashes green but no tool starts or works. when testing the battery has 19.2v what could be the problem with them because I have three similar ones but there is nothing written on them all the patches are removed in the first B22 /4.0 with 19.2v the second one B22 /5.2 with 21.8v the third B22 /4.0 with18.3v are all three destroyed ? a bit difficult to believe have also tried other Hilti tools the same thing if someone who can help very grateful...
    Today, 08:05 AM
  • Helikvar
    Rca RWOSU7047 No Picture
    by Helikvar
    Tv powers on and has backlights but no picture.All voltages from power supply to main board are correct.
    Yesterday, 09:45 PM
  • Nagyesz
    Hp pavilion 14 - No display
    by Nagyesz
    Hi all,
    Model: HP Pavilion 14-ce3010nh 8BV97EA
    Board number: DAG7ALMB8C0 - G7AL REV C
    Issue: I have an HP Pavilion 14-ce3010nh 8BV97EA laptop. When plugged into the charger, it turns on, but there is no display, the fans do not run, and the processor gets slightly warm. Unfortunately, I haven't been able to figure out what the problem is. I've reflashed the BIOS twice without any success. No post. Already tried out with another ram stick with no luck

    I measured the voltage with the HP turned on in red, and I measured their resistance with the HP turned off in green....
    05-30-2024, 04:10 AM
  • edugimeno
    Grundig 39 WCP 2014 BRS. Bad BL, hack or fix?
    by edugimeno
    Hi! I was given this TV. It would turn on fine but then after a while the BL would shut off while rest of functions would stay working. I assume this 99% means a shortcut in the BL so the PS detects the overcurrent and shuts off the BL pwr.
    I managed to keep it up for the time enough to enter into settings and turn down the backlight to 50% which seemed to help. I was able to watch it for some hours several days

    But the other day, I went to try it and the BL didn't even start at boot up. I want to repair it but: This is a spare TV that I want to keep at a house that I seldom...
    Today, 12:58 PM
  • mo000
    MSI B660 MORTAR NO DISPLAY
    by mo000
    Hi!
    MSI B660 MORTAR MS-7D42
    the problem start when the client broke some capacitors and resistors in Back of the motherboard​ under PCH
    i put them back but
    same thing
    motherboard power on with no display after press the pwr button power on with dram led and restart and power on again with red cpu led
    cpu vcor looks good no short and cpu heat up but after second restart not heating
    i found 2 shorted transistor near to KBC but i doubt if that normal short or not (connected to AGND AND AMDSIC)
    other technicien flash the bios but same thing ....
    Today, 12:45 PM

Trending

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  • Prott
    [RoG Ally] Fault in one of the onboard RAM chips. Any way to diagnose which?
    by Prott
    Hello dear badcappers!

    The title pretty much says it all - do you, please, know if there's any way to troubleshoot which of the integrated RAM chips (LPDDR5X in this case) is faulty?

    [B]Backstory: [/B]
    After replacing the 4 onboard (soldered) memory chips on a RoG Ally (4x4 GB to 4x8 GB) it got stuck on the RoG logo. I assume one of the chips is either not soldered properly or faulty. However after reflowing and replacing bunch of them I am still stuck at the same place.

    If there is a way to narrow down which memory module is faulty it would make my...
    Today, 12:05 PM
  • fichamba
    HELP - Chip info needed
    by fichamba
    Hello everybody:

    I'm fixing a Lenovo Legion 5P 15IMH (can't see more on cover, but I will put a pic of the MoBo's reference), and I have a problem. I have solved all the problems with several components which went bad (MosFets, +3.3/+5Vdc regulator, shorted EC), and everything is not shorted now, but the PCH is. So I need your help to order this chip. I don't know what is the designation in order to buy one (the one in the MoBo was removed because it has a shorted zone). Everything is clean waiting for a new PCH, but I have no clues in how to order one. Please I beg your help....
    Today, 09:44 AM
  • Nicktronic
    Westinghouse W55UW4620 No Video
    by Nicktronic
    Ok, so I know I know, it's a Westinghouse....lol It's got the backlights but no video. Likely the panel, but I'd like to take some measurements on the buffer board with help from you experts to confirm. See the attached pictures. In pic #1, there's a nice pin reference to use to take some measurements. The large IC in pic #7 gets up to 60degC when the TV is on.

    So, backlights, no video, go! 🙂...
    Today, 03:21 PM
  • Deby
    LA-G871P Rev. 1.0 (Dell Latitude 7400) Hi res Scans, BRD & PDF Schematic
    by Deby
    CPU: i5-8365U

    1.Scanned motherboard in 1200DPI
    2.Schematic in PDF [ATTACH]n3283457[/ATTACH]
    3.Boardview in PDF [ATTACH]n3283456[/ATTACH]
    4.Boardview in CAD (open with BoardViewer 2.1.0.8) [ATTACH]n3283455[/ATTACH]

    [URL=filedata/fetch?filedataid=339320][ATTACH=JSON]{"data-align":"none","data-size":"small","data-attachmentid":3283458}[/ATTACH][/URL] [URL=filedata/fetch?filedataid=339321][ATTACH=JSON]{"data-align":"none","data-size":"small","data-attachmentid":3283459}[/ATTACH][/URL]...
    Today, 03:11 PM
  • Clarify4082
    Identify Component (Mosfet?) from Lenovo Battery
    by Clarify4082
    Hi,

    I´ve a replacement Lenovo Battery with liquid damage

    The component (I believe) a Mosfet is gone and I can´t find anything online. The marking is: 3108H1 D54FHJ
    Please find the pictures attached.

    Thanks [ATTACH=JSON]{"alt":"Click image for larger version Name:\tlenovo_battery.png Views:\t0 Size:\t1.27 MB ID:\t3283440","data-align":"none","data-attachmentid":"3283440","data-size":"custom","height":"525","width":"802"}[/ATTACH]...
    Today, 02:49 PM
  • Arshad alam4659
    203021-1 no display
    by Arshad alam4659
    i need a bios 203021-1
    lenovo ideapad flex 5
    seriel no PW003H93...
    Today, 09:17 AM
  • x_orange90_x
    Pioneer PN50951-22U Backlight On, No Image
    by x_orange90_x
    I get backlights that stay on not there is no image. The tv does not automatically power on when plugged in either which I generally see happen when there is a fault. It responds as it should to the power button.

    I checked the test points on the TCON and I have proper voltages except for at 1P15V. I don't know if that is supposed to be 15V or 5V, but either way I only get 1.134V on that point. I have 12V, 8V, VCC, and a small amount on the CKV point.

    I tried heating up the SoC on the main board but that made no difference. Disconnecting either ribbon from the TCON also...
    06-01-2024, 08:55 PM
  • ChattFix
    LG 65UQ7050ZUD No Picture Backlight On
    by ChattFix
    Hey everyone, I have an LG 65uq7050zud with a black picture but backlight is on. I tested the measurements from the PSU and they check out. I can’t find any service manual so I’m suspecting the main board. Any advice before I replace the board? Found them for around $60...
    Yesterday, 12:10 PM
  • Omron
    Need someone to look picture to say if this is normal or not [Uploaded in post]
    by Omron
    Guys I have set top box which has no power on in specific case. When I insert antenna plug which has 12V on it because of dB gain device on top of antenna, device if its turned off, it will not turn on.
    After I need to open the case and short + and - on ABS10 chip and after that device will turn on, without antenna plugged in, after its turned on I can plug in antenna and it will work fine, but I notice there is some extra heat inside the unit.

    Is this chip okay? Rectifier bridge ABS10 JQC I don't think there should be connection like additional diode between plus and minus...
    Yesterday, 03:09 AM
  • bohaboha
    Hilti Battery B22 4.0 blink green but not responding
    by bohaboha
    The HILTI CPC battery flashes green but no tool starts or works. when testing the battery has 19.2v what could be the problem with them because I have three similar ones but there is nothing written on them all the patches are removed in the first B22 /4.0 with 19.2v the second one B22 /5.2 with 21.8v the third B22 /4.0 with18.3v are all three destroyed ? a bit difficult to believe have also tried other Hilti tools the same thing if someone who can help very grateful...
    Today, 08:05 AM
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