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Badcaps Capacitor & Electronics Repair Forum | ||||||
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45 | 733 | ||||
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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.
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Last Post:
ncp81208 datasheet
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1 | 4 | ||||
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Questions and answers for identifying whether your device has bad capacitors. Also post general capacitor-related questions and issues here.
Topics: 3,183
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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!
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Auto Power-On After Outages: Advice?
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3,970 | 44,315 | ||||
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!
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Graphics card Schematics and Boardviews
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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: 31,842
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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: 5,321
Posts: 75,700
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5,321 | 75,700 | ||||
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: 27,444
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27,444 | 374,664 | ||||
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: 4,180
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4,180 | 65,225 | ||||
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: 301
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Last Post:
Epson l3110 dump
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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: 2,320
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TEAC AG 980 going protection mode
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2,320 | 27,439 | ||||
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Topics: 222
Posts: 3,898
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222 | 3,898 | ||||
Troubleshooting Game Consoles & Other Weird Devices
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Topics: 1,001
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DJI FPV goggles, dead backlight
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1,001 | 10,868 | ||||
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.
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1,376 | 19,385 |
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Badcaps Statistics
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Topics: 102,181
Posts: 1,268,661
Members: 492,477
Active Members: 16,545
Welcome to our newest member, francociro.
Latest Topics
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-
hell me friends help me DELL SELEK N17P MB 18839-1 BIOS
-
Channel: BIOS Requests ONLY!
Today, 09:38 AM -
-
by obelix24I have one strange issue with Macbook Pro 13" A1706 (touch bar) 4 TB ports
Issue is that all 4 ports are working but on one port only one side (when i rotate connector 180 degree there is nothing (ampmeter is not turned on at all) and charger (original apple) is put to protective mode, I have to unplug USB from the power brick to enable it again.
I've tried multiple USB-C ports (one one side all ports all sides work when i reconnect it to other side both ports work but one only on one side)
There is no issue problem on the board (no liquid damage, no damaged...Today, 04:28 AM -
by FaroksHello guys,
i got this laptop from a friend to solve a problem.
The Laptop got a black screen. After turning it on, the keyboardlight is on and the fan working sometimes but nothing to see. The LCD is fine.
I did the LCD selfttest.
I think my friend tryed to update the Bios and failed.
I have a TL866 ll Plus and ordered a SOIC8 clamp. I want to flash the Bios on circuit.
I don't know which of the two chips are the bios.
Near the CMOS Battery: MXIC MX25L8006E
Near the CPU: AH1721 259(8)128CSIG E7A026 the 9 can be a 8.
...04-23-2024, 08:41 PM -
by vendakHI
I have a problem with the lcd turning on after a power outage.
Panel backlight ok. Voltage main and PS too.
Response to the remote control is fine.
The led control flashes.
Main board Y21 NIKE_BUILT_IN
CODE:BN41-02844A
BN94-16869A
Thanks for the ideas
Vendak75...Yesterday, 10:47 AM -
Hi all,
I have a Lenovo Yoga 13 Panasonic here, when powered[LIST][*]both fans spins (the sconds starts with a bit of a delay), no image neither on HDMI nor the display[*]most voltage rails seem OK (see image below, red labels)[*]resistnace to ground mostly seem OK as well (blue labels)[/LIST]the only suspicious is the 0.0V rail (2nd from left, top row)[LIST][*]the resistance to ground is rather low (1.9ohm)[*]when injecting the voltage (1V), it consumes around 200mA, seems OK to me (?)[/LIST]also tried new BIOS, no change
I can't find a schematics for the board - can some of...Today, 05:59 AM -
by claws77my laptop has a weird power-on issue.
Once the laptop has been powered on, it can restart/ wake just fine on battery power or Adapter, ONLY If i have not closed the LCD.
If i am running on battery and have closed the LCD (even momentarily). it will not power-on/ wake-up on battery power no matter the battery percentage.
but once i open the LCD and connect it to the adapter (even momentarily) it will wake up gain and I wont experience any issues till i close the LCD.
i do not know where to look for repair.
thank you all for any advice.04-30-2024, 04:36 PM -
by FaroksThe Laptop is not booting, maybe because a failed Biosupdate.
No bootlogo, just the Fan and the lights starting.
I attached the Original Bios. I read it with a TL866ll Plus
Thank you
---- Edit.
Found the Clean bios in a other Topic, flashed... it said failed but its working now. Just had to set the Service ID and now its running fine.-
Channel: BIOS Requests ONLY!
Today, 08:36 AM -
-
by corrize[FONT=Calibri]Hello,[/FONT]
[FONT=Calibri]I have different sort of those little BGA chips (step down DC-DC, power management battery, …) I replaced 10 on differents mobile devices (no schematics) but I noticed often they can be dead but never shorted. I see some signs : burn marks, resistance drop by comparison with good board (40 KOhms to 1 KOhms for example)… but not easy to be sure of the diagnose. Because I can't access on all tracks (balls) with the meter.
Sometime, I know only after replacing chips.[/FONT]
[FONT=Calibri]Do you have tips for diagnose please ?[/FONT]...Today, 08:30 AM -
Hello, Basically a customer tried updating his mini PC using a USB stick but it bricked the computer. I've tried flashing a new chip with a CH318A programmer using neoprogrammer and a ROM file from minisforum's website. From what I have read on the forum here, there isn't a readily available guide on how to serialize an existing bios to the motherboard. I have a dump from the original BIOS chip, I did an additional one and did the fc /b command to make sure no discrepancies were found. The machine model number is Minisforum UM780 XTX, machine serial is MC495UU78XQQMQA0089, Board Serial is F78SD784048A1050804....
-
Channel: BIOS & Schematic Requests!
Yesterday, 06:22 PM -
-
by jkrunsHello everyone,
This is my first post after browsing this wonderful treasure trove of knowledge for many, many evenings. I've decided to learn how to fix these things, properly.
My patient is an A2338 Macbook Pro M1 (late 2020).
It had some corrosion around JT710 and JT700 caused by liquid spill, as well as against the protective barrier around the USB-C chips UF000 and UF100. So I took the main board out and cleaned it with a toothbrush and alcohol, then with alcohol in an ultrasonic cleaner. Cleaned the touchbar flex connectors as well. The board looks...04-22-2024, 06:45 AM
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by MarkIV4Hi everyone, I hope I'm posting this in the right place. I'm new to this forum and I'm hoping you can help me out.
My Samsung Galaxy Book suddenly stopped working and won't turn on at all. I noticed that the component in the attached photo looks burnt out. I think it's a voltage regulator, but I can't find any information about this IC online. I've searched using the code on the chip, but I haven't been able to find a replacement....Today, 03:30 AM -
by ericoFirst of all, ive veen reading these forums for some time and its always veen very helpful, so i thank you all for this amazing comunity.
I have a lmq-2 13268-1 motherboard from a lenovo x1 carbon 3rd gen. And the MX25l12873f (U49) bios pin 8 is not getting voltage.
So far these are my diagnostics:
When given 19v trough power adapter, consumption reads 0.003 amps for about 5 seconds then nothing.
When power button pressed same result, and i get three green blinking lights from the pwr btn led. But foesnt turn on.
If i plug the...Today, 02:40 AM -
Hi all,
I have a Lenovo Yoga 13 Panasonic here, when powered[LIST][*]both fans spins (the sconds starts with a bit of a delay), no image neither on HDMI nor the display[*]most voltage rails seem OK (see image below, red labels)[*]resistnace to ground mostly seem OK as well (blue labels)[/LIST]the only suspicious is the 0.0V rail (2nd from left, top row)[LIST][*]the resistance to ground is rather low (1.9ohm)[*]when injecting the voltage (1V), it consumes around 200mA, seems OK to me (?)[/LIST]also tried new BIOS, no change
I can't find a schematics for the board - can some of...Today, 05:59 AM -
hell me friends help me DELL SELEK N17P MB 18839-1 BIOS
-
Channel: BIOS Requests ONLY!
Today, 09:38 AM -
-
by FaroksThe Laptop is not booting, maybe because a failed Biosupdate.
No bootlogo, just the Fan and the lights starting.
I attached the Original Bios. I read it with a TL866ll Plus
Thank you
---- Edit.
Found the Clean bios in a other Topic, flashed... it said failed but its working now. Just had to set the Service ID and now its running fine.-
Channel: BIOS Requests ONLY!
Today, 08:36 AM -
-
by corrize[FONT=Calibri]Hello,[/FONT]
[FONT=Calibri]I have different sort of those little BGA chips (step down DC-DC, power management battery, …) I replaced 10 on differents mobile devices (no schematics) but I noticed often they can be dead but never shorted. I see some signs : burn marks, resistance drop by comparison with good board (40 KOhms to 1 KOhms for example)… but not easy to be sure of the diagnose. Because I can't access on all tracks (balls) with the meter.
Sometime, I know only after replacing chips.[/FONT]
[FONT=Calibri]Do you have tips for diagnose please ?[/FONT]...Today, 08:30 AM -
by obelix24I have one strange issue with Macbook Pro 13" A1706 (touch bar) 4 TB ports
Issue is that all 4 ports are working but on one port only one side (when i rotate connector 180 degree there is nothing (ampmeter is not turned on at all) and charger (original apple) is put to protective mode, I have to unplug USB from the power brick to enable it again.
I've tried multiple USB-C ports (one one side all ports all sides work when i reconnect it to other side both ports work but one only on one side)
There is no issue problem on the board (no liquid damage, no damaged...Today, 04:28 AM -
by tommy97Hi,
i've got for repair Lenovo L340-15IRH fg541/fg741 nm-c362 rev 1.0, laptop have instant short 20v 0.20amp draw, lv5083a goes to 100degree, i've removed 1 shorted cap next to the IC and short still remain, from look of it short comes from legs 16-25, i can't find what this IC i believe is 3/5V regulator?
First mosfets normal 20v Source and drain and Gate 25v...04-30-2024, 11:43 AM -
by nabilgocan anyone help me remove panasonic CF-LV8SDDZTF
model CF-LV8SDDZTF
serial 2HKCC48561
borad number DHLB1434ZC/X1
...-
Channel: BIOS Requests ONLY!
04-30-2024, 06:02 PM -