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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!!
Topics: 234 Posts: 41,499
234 41,499
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: 3,180 Posts: 32,650
3,180 32,650
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: 4,491 Posts: 74,778
4,491 74,778
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: 3,959 Posts: 44,239
3,959 44,239
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: 6,777 Posts: 37,050
6,777 37,050
Prott
by Prott
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: 31,673 Posts: 301,245
Last Post: Toshiba password
31,673 301,245
Sub-Forums:
BIOS Requests ONLY! (12,623/151,464)
Schematic Requests ONLY! (4,704/28,249)
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: 5,314 Posts: 75,660
5,314 75,660
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: 27,410 Posts: 374,177
27,410 374,177
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: 4,170 Posts: 65,144
Last Post: TDK ZWS150BAF-12
4,170 65,144
прямо
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: 300 Posts: 1,661
300 1,661
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: 2,312 Posts: 27,389
2,312 27,389
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: 221 Posts: 3,889
221 3,889
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: 996 Posts: 10,838
996 10,838
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: 1,374 Posts: 19,317
1,374 19,317

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There are currently 680962 users online. 4153 members and 676809 guests.

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

Badcaps Statistics

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Topics: 101,868   Posts: 1,264,810   Members: 490,201   Active Members: 16,360
Welcome to our newest member, PCjunkYard.

Latest Topics

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  • chaos-theory
    RX580 MSI armor OC 8gb no post
    by chaos-theory
    I have a card that does post at all, the owner said it does go into windows but it gets stuck on the logo with artifacts, I have no idea if he is lying or not... I tried the card on my pc and it does not post at, no beeps, no bios nothing just all fans turning and nothing else. I tried plugging DVI or hdmi but nothing, I tried unplugging the 8 pin plug from the power supply and it's the same thing.
    I just want it to post and get into the bios at least.
    Forgive me if I am wrong, but I tested the 3 PCIe 12v power pins on the left(550ohm) and the 4th one from the right 3.3v (400ohm),...
    Today, 02:42 AM
  • norbiszoke
    Samsung 50AU7172, only blinking red light
    by norbiszoke
    Hello,

    We have this set here in our shop that is not ginving sign of life besides red light that is blinking one time after pressing the button and nothing more... After detaching the mainboard from the PSU (this set has separate board thank god?! or not...) the backlight comes on. After reattaching nothing besides red light.... Can anyone from the forum help me here? Thank you in advance. Here's a link with images of the mainboard and the memory IC's that are on it.


    Regards, Norbert!...
    Yesterday, 06:54 AM
  • chth96
    How can I find ESR value for bad capacitor?
    by chth96
    I usually tried to find datasheet which contains Maximum ESR value like KME datasheet.
    [URL]https://www.westfloridacomponents.com/mm5/graphics/S06/KME250VB10RM10X20LL.pdf[/URL]

    As far as I know,Maximum ESR means boundary ESR value for bad capacitor.
    But,In many case,there is no ESR value in datasheet like below links.
    [URL="https://www.mediafire.com/file/fhe8h0x4fmblgzn/SAMWHA-RG_Series_.pdf/file"]SAMWHA-RG Series (mediafire.com)[/URL]
    [URL="https://www.mediafire.com/file/wwiiluhtci0qxb0/samyoung_SMS_Series.pdf/file"]samyoung_SMS_Series...
    Today, 02:30 AM
  • Kambi13
    Lenovo V14-IILWont Only post with OnBoard RAM
    by Kambi13
    Hi all, need some help, I've got a Lenovo V14-IIL that as total of 8GB of RAM (4GB onBoard - 4GB Sloted), out of the blue it stopped posting, After investigating, found out that removing the RAM stick from the slot, the laptop would post and work with no other issues. So tried with a different RAM stick suspecting that the original one somehow died, but to my frustration the issue remained, so again tried a different number of known working RAM sticks with different capacities and speeds but with no avail.... Unplugged Battery, removed CMOS battery,Reset and Updated Bios, also measured voltages...
    Today, 05:23 AM
  • mZeles
    I would like a responce code forr Toshiba Tecra R950-11F
    by mZeles
    Hi everyone I have the Toshiba Tecra R950-11F which is bios locked by a supervisor password. If anyone can help please respond so i can get the challenge code and serial number.

    I can't get these codes as I am using the laptop alot and would have to restart it after the codes have been provided.

    Thanks all...
    Today, 10:48 AM
  • ub6ib969
    HP Pavilion 15-cs0015nia DAG7BMB16E0 REV:E BIOS help?
    by ub6ib969
    Hi, unit will power on and displays the HP splash screen and gets stuck. Tried F10, ESC to get to the BIOS however the CAPS LOCK key flashes 5 long and 4 short. I have attached the information below if anyone can assist. Thanks in advance.

    [B]Model[/B]
    HP Pavilion - 15-cs0015nia
    [B]Product[/B]
    4XL67EA#BH5
    [B]Serial[/B]
    5CD83574CD
    [B]Motherboard[/B]
    DAG7BMB16E0 REV:EHi, unit will power on and displays the HP splash screen and gets stuck. Tried F10, ESC to get to the BIOS however the CAPS LOCK key flashes 5 long and 4 short. I have attached...
    Yesterday, 04:25 PM
  • tommy97
    HP omen HP 15-dh1005na - No charge while on
    by tommy97
    Hi,

    We are having problem with HP omen [B]HP 15-dh1005na[/B] Motherboard:GPC54 LA-J662P Rev 1.0 laptop randomly restarts, and it did not charge battery. PQB01 we're blown replaced, laptop charging only while laptop is off. While the laptop is ON in windows, we're getting a message that charger wattage is incorrect, and it does not have a charging light at all. Tried on 180w, 120w and lab PSU, no change, while it's off it does charge on any charger.
    PQB 1&2 S&D 19.5v, G 24v.

    The laptop does not power on while battery disconnected, only show white light on...
    Today, 09:57 AM
  • Jovica123
    HP 15-da2033nm,bios problem
    by Jovica123
    Hello,
    i have here laptop HP 15-da2033nm,laptop turns on but no picture.
    Laptop normally charges the battery.
    On keyboard,capslock blink 5 times slowly,and then 3 times quick.
    Motheboard in this laptop is laptop EPW 50 LA-G07FP Rev : 1.0
    I know there are a lot of bios files on this forum,i tried every one of them.
    Also i tried bios from hp site,exactly 086B3.BIN,because my BID number is 086B3.
    Here is my original bios file,that don't work.
    Thank you !​...
    Today, 10:26 AM
  • sretchko
    Sony Receiver STR-4800SD L/R Balance
    by sretchko
    [FONT=Arial]Hey fellow solder fume lovers, I have a Vintage Sony Receiver STR-4800 SD that has me stumped. [/FONT]
    [FONT=Arial]The Balance Pot has to be set at about 30 degrees (11 o'clock) to the left for the output to be balanced (see photo). I'm using an oscope, sig gen 1kHz sine, 8 ohm dummy load).[/FONT]

    [FONT=Arial]When output is balanced (11 o'clock left) both channels clip at about 19 vac / 45 watts RMS, Amp is rated at 35 watts so I know the amp modules are good. Square wave also looks good when turning bass & treble pots and is in phase. [/FONT]

    [FONT=Arial]I
    ...
    Badcaps Electronics Repair Forum & Schematic Search
    Yesterday, 06:02 AM
  • Prott
    NUC BLKNUC7i7DNKE bios
    by Prott
    Hello, my apologies for reviving this thread. I have a 8gen NUC with a (possibly?) dead bios - the fan starts up, slows down, but it doesn't show any picture (recovery button doesn't work either). The dump is attached.

    Could anybody please help me with fixing it? I am not able to find any BIOS dumps for this model anywhere.
    [B]S/N:[/B] BTDN9320085T
    [B]Model: [/B]BLKNUC7i7DNKE

    Thank you so much! Hello, my apologies for reviving this thread. I have a 8gen NUC with a (possibly?) dead bios - the fan starts up, slows down, but it doesn't show any picture (recovery...
    04-16-2024, 07:02 AM

Trending

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  • tommy97
    HP omen HP 15-dh1005na - No charge while on
    by tommy97
    Hi,

    We are having problem with HP omen [B]HP 15-dh1005na[/B] Motherboard:GPC54 LA-J662P Rev 1.0 laptop randomly restarts, and it did not charge battery. PQB01 we're blown replaced, laptop charging only while laptop is off. While the laptop is ON in windows, we're getting a message that charger wattage is incorrect, and it does not have a charging light at all. Tried on 180w, 120w and lab PSU, no change, while it's off it does charge on any charger.
    PQB 1&2 S&D 19.5v, G 24v.

    The laptop does not power on while battery disconnected, only show white light on...
    Today, 09:57 AM
  • norbiszoke
    Samsung 50AU7172, only blinking red light
    by norbiszoke
    Hello,

    We have this set here in our shop that is not ginving sign of life besides red light that is blinking one time after pressing the button and nothing more... After detaching the mainboard from the PSU (this set has separate board thank god?! or not...) the backlight comes on. After reattaching nothing besides red light.... Can anyone from the forum help me here? Thank you in advance. Here's a link with images of the mainboard and the memory IC's that are on it.


    Regards, Norbert!...
    Yesterday, 06:54 AM
  • Keshenatech1
    TDK ZWS150BAF-12
    by Keshenatech1
    Does anyone have a schematic or parts list for a ZWS150BAF-12 12V power supply? I have a dead one and I've determined the surface mount diode on the back side of the board that connects from the center leg of Q3 to the + side of the 420V 60uf capacitors has a 3.5 ohm short. I'm not having much luck trying to identify the diode as the part number is not very legible. In the attached picture, it's the black rectangular diode in the center. There are some numbers on it but I can't even tell if it's right side up or upside down. The picture is from a 2nd good working unit which is more legible...
    Today, 08:58 AM
  • mZeles
    I would like a responce code forr Toshiba Tecra R950-11F
    by mZeles
    Hi everyone I have the Toshiba Tecra R950-11F which is bios locked by a supervisor password. If anyone can help please respond so i can get the challenge code and serial number.

    I can't get these codes as I am using the laptop alot and would have to restart it after the codes have been provided.

    Thanks all...
    Today, 10:48 AM
  • Jovica123
    HP 15-da2033nm,bios problem
    by Jovica123
    Hello,
    i have here laptop HP 15-da2033nm,laptop turns on but no picture.
    Laptop normally charges the battery.
    On keyboard,capslock blink 5 times slowly,and then 3 times quick.
    Motheboard in this laptop is laptop EPW 50 LA-G07FP Rev : 1.0
    I know there are a lot of bios files on this forum,i tried every one of them.
    Also i tried bios from hp site,exactly 086B3.BIN,because my BID number is 086B3.
    Here is my original bios file,that don't work.
    Thank you !​...
    Today, 10:26 AM
  • chaos-theory
    RX580 MSI armor OC 8gb no post
    by chaos-theory
    I have a card that does post at all, the owner said it does go into windows but it gets stuck on the logo with artifacts, I have no idea if he is lying or not... I tried the card on my pc and it does not post at, no beeps, no bios nothing just all fans turning and nothing else. I tried plugging DVI or hdmi but nothing, I tried unplugging the 8 pin plug from the power supply and it's the same thing.
    I just want it to post and get into the bios at least.
    Forgive me if I am wrong, but I tested the 3 PCIe 12v power pins on the left(550ohm) and the 4th one from the right 3.3v (400ohm),...
    Today, 02:42 AM
  • chth96
    How can I find ESR value for bad capacitor?
    by chth96
    I usually tried to find datasheet which contains Maximum ESR value like KME datasheet.
    [URL]https://www.westfloridacomponents.com/mm5/graphics/S06/KME250VB10RM10X20LL.pdf[/URL]

    As far as I know,Maximum ESR means boundary ESR value for bad capacitor.
    But,In many case,there is no ESR value in datasheet like below links.
    [URL="https://www.mediafire.com/file/fhe8h0x4fmblgzn/SAMWHA-RG_Series_.pdf/file"]SAMWHA-RG Series (mediafire.com)[/URL]
    [URL="https://www.mediafire.com/file/wwiiluhtci0qxb0/samyoung_SMS_Series.pdf/file"]samyoung_SMS_Series...
    Today, 02:30 AM
  • dimondimonich
    Lenovo Legion 5 Pro (R9000P ARX8)
    by dimondimonich
    Hi guys! We need a bios dump.
    Model Legion 9000 PRO 8 (2023)
    s/n PF4T63Y1
    I downloaded the bios on the official Lenovo website
    It is not possible to fill it with a programmer on a flash drive
    In the original flash drive, the file weight is 2 MB.
    Please help me)
    Yesterday, 06:36 PM
  • Super360
    Samsung/UN65H6300AF LOGO APPEARS AND SHUTS OFF
    by Super360
    Hi as you can see from title, I have a samsung tv here that will show the smart tv logo and then no picture after that even hitting input or menu on remote and shows nothing but the backlight still appears to be on. The tv will turn itself off after a minute or so automatically. I'm somewhat confused if this is either a eeprom problem or a bad led strip problem. The power supply makes a pretty noticeable humming sound when it's turned on leading me to believe one of the leds are shorted but idk honestly. Any of you guys have any help for me? I have a good multi meter and can take pictures of whatever...
    04-13-2024, 10:05 PM
  • vinzmt
    820-00165 no backlight
    by vinzmt
    hi to all
    i have this logic board with no back light, image is present.
    unknow istory.

    on q7707 pin 5 EDP_BKLT_EN found 3.3 v, pin 1 gnd damage, pin 2 BKLT_PLT_RST_L only 0.08v (but is 3.3 on r2088 pin 2)
    remove q7707 and find this

    any suggestions?
    thanks...
    Yesterday, 07:05 AM
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