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| Badcaps Capacitor & Electronics Repair Forum | ||||||
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Frequently Asked Questions (No Posting)
All new members, PLEASE READ HERE FIRST! Posting only allowed by established members.
Topics: 45
Posts: 733
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45 | 733 |
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Announcements & Related News
Site announcements, capacitor-related news, and anything relavant you might think of... Got News? POST IT!!
Topics: 235
Posts: 42,444
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235 | 42,444 |
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| Document & Software Archive | ||||||
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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
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2 | 5 |
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| General Topics | ||||||
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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: 3,192
Posts: 32,729
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3,192 | 32,729 | ||||
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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: 4,506
Posts: 74,884
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4,506 | 74,884 |
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| Troubleshooting Hardware & Devices and Electronics Theory | ||||||
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General Electronics Technical Discussion
If you have a general question concerning basic electronics theory or component function & usage, here's where it goes.
Topics: 3,990
Posts: 44,503
Last Post:
Confused - I don’t want to order wrong thing
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3,990 | 44,503 |
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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: 6,881
Posts: 37,667
Last Post:
need optiplex 7010 bios dump
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6,881 | 37,667 |
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Sub-Forums:
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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: 501
Posts: 5,455
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501 | 5,455 |
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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: 32,236
Posts: 308,363
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32,236 | 308,363 |
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Sub-Forums:
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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: 75,742
Last Post:
Dell 2408WFPb / 2408WFP - No Power
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5,332 | 75,742 |
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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: 27,496
Posts: 375,236
Last Post:
Samsung ue49mu6120
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27,496 | 375,236 |
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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: 65,332
Last Post:
Welder not turning on - Learning
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4,196 | 65,332 |
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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: 305
Posts: 1,686
Last Post:
i need dump for printer canon G3430
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305 | 1,686 |
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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: 27,604
Last Post:
Squire bass guitar amp PB 15 no sound
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2,343 | 27,604 |
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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: 226
Posts: 3,952
Last Post:
Xiaomi Roidmi EVE Pro battery died!
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226 | 3,952 |
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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: 1,017
Posts: 10,948
Last Post:
PS5 Slim Beep No Light UART DDR4 Error
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1,017 | 10,948 |
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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: 19,494
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1,382 | 19,494 |
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acer predator helios ph717-72 any one have a BOARD VIEW of this gaming laptopYesterday, 07:53 PM
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Hi,
I am looking for the schematic of this motherboard or this component, PQB4 reference (Unable to read the text beyond P5)
Also, if someone with experience could tell me, why would this component burn in order to avoid this happening again?
Thank you.Yesterday, 02:38 PM -
Hi all, I have a Lenovo Y40-80 that I am trying to remove the Admin password for. There is a password screen that comes up immediately that I can input a user password for (Pic 3) and this will allow me access to Windows or the BIOS, but a majority of the options are grayed out in the BIOS (Pic 4).
I have attached a picture of my overall chassis and a close up of the chip that I have read (using CH341A and AsProgrammer). I output two files from the chip and compared them (fc /b) and they were the same. I patched the first file (the file felt like it processed too quickly) and then...Yesterday, 01:45 PM -
Hello everyone,
My Legion 5 15IAH7 won't post. won't boot. No fans, no keyboard backlight.
Online power led and charging led lights up.
My guess is that there is some issue with the BIOS.
It's the NM-E241 Rev 1.0 motherboard.
As I found out there are two BIOS dumps needed for this board.
One 16MB and one 8MB.
I've got both uploaded. Can you maybe check and fix this BIOS files?
Thanks a lot in advantage
...
Today, 07:01 PM -
I am trying to downgrade my bios on my Alienware so I can undervolt & overclock my CPU, and overclock my ram. I need to get to bios 1.2.2 for this. Dell doesn't allow downgrades, and their bios file is an exe compiled in c++, so I can't decompile it easily. I am wondering if I can flash the bios manually using a usb flasher. I would like to know if this is possible, and if so, where the bios chip would be. I know flashers are pretty cheap and the bios chip is 8-pin. There are two of these chips only when I open the back panel of the laptop. I'm not sure if there are any on the other side of...05-17-2024, 03:34 PM
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Hi all , thanks for having me & I think this has been asked before but my case seems a bit odd.
I have a MacBook Pro , board 820-2915a and it turns on , chimes etc etc , keyboard lights up, fans spins , can turn caps lock on/off but screen is dead.
Iv tried the resets , shine torch through back logo , nothing , it seems the screen has no power. If I plug charger , it charges but if I disconnect battery it displays green light but won't turn on. Iv tried screen on with another board & it works & seems I'm not getting any voltage at pin 2 , next to ground pin .
is this...Today, 04:09 PM -
Hello people. I trying to repair my welding machine oerlikon citomig 180mp hpf and there is a little board with blown stuff.The problem is i cant identify the value of the blown resistor and diode. Any suggestion?05-18-2024, 01:22 PM
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Hi All! So I got this LC-70LE650U monitor from work.... Worked great there! When I got it home and hooked it up I got this split/greenish display problem. Sound works great but nit the display. I tried two different computers and two different HDMI cables and no go. I opened it up and reseated each cable etc and I still have the same issue. I attached images of the boards inside also. Any ideas? Joe...Today, 06:38 PM
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I have this Asus ROG laptop (the 1060 + 6700HQ variant) which lights up the power button's LED when i plug the charger in but does nothing else. Opening up there are no signs of any burnt or corroded components, i've checked the resistance of both CPU and GPU's cores on the caps underside them, the CPU's VCCCORE's caps read 1.2ohm and the GPU's NVVDD read about 0.5 to 0.6ohm. I then tried to check any voltages while the laptop is plugged in (without any of the removable parts) and the GPU's core voltage instantly goes to 0.8v when plugged then getting slowly warm, the PCH does so too (not so warm...Today, 06:23 PM
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Hi all.
Recently I picked up a vintage HP 37717B communications analyzer which uses one of these MML200 Coutant power supplies. Needless to say the PSU is not working, and surprisingly there is apparently nothing available on the web regarding repairing one of these. No stories, no schematics, zilch!
There[I] are [/I]however many companies offering repair 'services', however I don't have the luxury of sending it off, so am intending to do the repair myself.
I admit right now that I am no expert on smps repair, although I do have a grasp on the principle of the general...05-29-2024, 08:23 PM
-
Hello everyone,
My Legion 5 15IAH7 won't post. won't boot. No fans, no keyboard backlight.
Online power led and charging led lights up.
My guess is that there is some issue with the BIOS.
It's the NM-E241 Rev 1.0 motherboard.
As I found out there are two BIOS dumps needed for this board.
One 16MB and one 8MB.
I've got both uploaded. Can you maybe check and fix this BIOS files?
Thanks a lot in advantage...
Today, 07:01 PM -
Hello, I would like you to help me with this bios that is blocked, it works completely, I have not found a file compatible with my logic card, I programmed a bios but it did not have sound nor did the graphics card work.
ASUS
RogStrix
G513RM
Board: 6050a3348804-mb-a01
It is locked, can you help me unlock it please and give me some tutorial or post, I would like to learn how to unlock it myself.
Sorry for my English....Today, 04:15 PM -
Hi,
I have this laptop HP x360 1030 G2.
Battery is charging well, the laptop powers on the CPU gets warm but nothing on the internal screen or hdmi.
The fan is spinning at full speed.
Any idea ?
I just asked for a schematic i cannot find it.Yesterday, 05:25 AM -
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....Yesterday, 04:10 AM -
Hello, I'm trying to remove the password from an HP Elitebook 650 G10. It's motherboard has two chips, a 32mb spi (W25Q256JVEN) and 32mb ec (GD25B256EYIG). I have created a dump of each, but don't know which one(s) to patch. Could someone point me in the right direction or just patch it for me?...05-29-2024, 06:29 PM
-
Hi all , thanks for having me & I think this has been asked before but my case seems a bit odd.
I have a MacBook Pro , board 820-2915a and it turns on , chimes etc etc , keyboard lights up, fans spins , can turn caps lock on/off but screen is dead.
Iv tried the resets , shine torch through back logo , nothing , it seems the screen has no power. If I plug charger , it charges but if I disconnect battery it displays green light but won't turn on. Iv tried screen on with another board & it works & seems I'm not getting any voltage at pin 2 , next to ground pin .
is this...Today, 04:09 PM -
I'm fixing a board that turns on, but stops right at the beginning, it stays in hibernation with the light on.
I made these voltage measurements PPBUS_G3H=12.61V - SMC_PM_G2_EN=3.3V - PP5V_S3_AUDIO=5V - all_sys pwrgd=3.3V.
Anyone with experience in this problem who can help me?Today, 03:25 PM -
hello
I am looking for two ics on this mb:
1st marked 947 and secound sot23-5 marked 5af8b
thanks and regards...Today, 04:32 AM -
Hi All! So I got this LC-70LE650U monitor from work.... Worked great there! When I got it home and hooked it up I got this split/greenish display problem. Sound works great but nit the display. I tried two different computers and two different HDMI cables and no go. I opened it up and reseated each cable etc and I still have the same issue. I attached images of the boards inside also. Any ideas? Joe...Today, 06:38 PM
-
Dear Members,
This laptop used to work with a 19v 3.4A adapter.
After 4 years of using it, now, the adapter's output voltage drops to 17v when windows loads up. Then the laptop suddenly turns off.
Today, I have connected a 19.8v 4.5A adapter to this laptop. Then the adapter's output voltage dropped to 19.4v but the laptop worked fine.
In addition, I noticed that the cpu power coils get warm to about 50'C but the mosfets are cool.
All the voltage rails on the mainboard are fine without any reduction except for the 19v rail. All the ICs and coils on the mainboard are...Today, 01:36 AM