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Directory Topics Posts Last Post
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: 725
Last Post: Capacitor ESR
45 725
Behemot
by Behemot
Announcements & Related News
Site announcements, capacitor-related news, and anything relavant you might think of... Got News? POST IT!!
Topics: 232 Posts: 38,608
232 38,608
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: 3,148 Posts: 32,391
3,148 32,391
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: 4,464 Posts: 74,578
Last Post: Win Vista Iso Help
4,464 74,578
Off Topic / Lounge
For that other stuff in life. This is an open forum for off topic discussions. Speak your mind, but keep it civil! Excessively gross, vulgar, racial, political or otherwise objectionable content is not allowed in this section.
Topics: 4,371 Posts: 73,540
4,371 73,540
RJARRRPCGP
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: 3,869 Posts: 43,593
3,869 43,593
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: 6,417 Posts: 34,998
6,417 34,998
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: 494 Posts: 5,400
494 5,400
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: 30,156 Posts: 165,928
30,156 165,928
Sub-Forums:
BIOS Requests ONLY! (12,053/139,154)
Schematic Requests ONLY! (4,461/26,774)
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: 5,273 Posts: 75,395
5,273 75,395
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: 27,117 Posts: 370,011
27,117 370,011
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: 4,096 Posts: 64,412
Last Post: Sony HCD DZ280 PSU
4,096 64,412
sam_sam_sam
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: 289 Posts: 1,594
289 1,594
sahraoui1
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: 2,253 Posts: 26,993
2,253 26,993
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: 186 Posts: 3,557
186 3,557
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: 939 Posts: 10,479
939 10,479
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: 1,353 Posts: 19,164
1,353 19,164
Classifieds
For Sale / For Trade
Computer-related HARDWARE only! Sell or trade some of that stuff you have lying about your closet floor...
Topics: 555 Posts: 2,478
555 2,478
rilya
by rilya
Looking To Buy
Looking for something? Let us know... Maybe one of us has it in our junk pile!!
Topics: 725 Posts: 3,287
725 3,287
mitjats
by mitjats

What's Going On?

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There are currently 832238 users online. 1819 members and 830419 guests.

Most users ever online was 1,042,489 at 09:08 AM on Yesterday.

Badcaps Statistics

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Topics: 108,282   Posts: 1,127,174   Members: 469,802   Active Members: 17,503
Welcome to our newest member, activatedpc56.

Latest Topics

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  • huzo
    Acer laptops and keyboards
    by huzo
    I noticed in manny cases the following : You press the power button and laptop starts turning on and then goes off again, but if you press any key on the keyboard and hold it, the laptop stays on and works fine! The power button works, any other button works , but one button must always be on!

    Has anyone else notice that? I was meaning to write about this topic a few times already , but never got to it, and today i got Aspire A315-42 with i5 10th gen. and it has the same issue and i got mad and now i am writing about it!

    If you hold any button on the keyboard the laptop...
    Yesterday, 11:53 AM
  • ktmmotocross
    Lenovo Gaming 3 15ARH05 NM-D191 - short on SIO, after replace 1.1V instead of 3.3W
    by ktmmotocross
    Hello.
    Have this Lenovo Gaming 3 15ARH05 NM-D191 that came with short on SIO and shorted UI1 USBovercurrent protection ic. removed UI1. I accidently ordered IT8227E-192 instead IT8227E-128 but i soldered it. Now i have 1.1V instead of 3.3ALW. i have vin, +3VLP, EC_ON, 5V_LDO - ok, no short on 3.3VALW /2Kohm+/

    where can be problem?

    schematic and BV
    [URL]https://www.badcaps.net/forum/troubleshooting-hardware-devices-and-electronics-theory/troubleshooting-laptops-tablets-and-mobile-devices/schematic-requests-only/96430-need-schematic-and-boardview-for-nm-d19...
    Yesterday, 02:26 AM
  • Leone22
    HP Envy 15 does not turn on, only the LED on the PC connector is on!!!
    by Leone22
    Hello community. I need your help to resolve the problem with my HP envy 15 notebook mod.15-k111nl. The problem is the following: inserting de connector of the notebook, the LED on the connector lights on but if I pressed the power button it doesn't happen Nothing.
    I did some tests to verify where the fault could be and I noticed there are 3v but the 5v does not arrive.Furthermore I have a series of mosfets that seem to be in short circuit but desoldering them and testing them on the bench they are good. These are the signals that I found:
    PL8:3,117v----PL9:0v---PL12-----PL13:0---PL16:0v---PL20:0v---PL16:0v----PL13:0v--...
    Yesterday, 05:49 AM
  • techpointhull
    HP OMEN 16-WF0032TX NO Power unless the button is held and AC adapter connected
    by techpointhull
    Hi Guys,

    Got a weird one here. I have a HP OMEN 16-WF0032TX that's in my shop for no power. If I disconnect the battery, and the AC adapter and hold the power-on button on the keyboard, when I connect the adapter the laptop powers on. If I shutdown and close the lid, once I re-open the lid and press the power button, no power. If I shutdown and keep the lid open, when I press the button the laptop powers on.

    I have checked around the display connector if I can see anything that doesn't look right, its like an issue with the lid sensor. Has anyone seen this before?...
    Yesterday, 12:32 PM
  • burntonnerings
    Pioneer VSX-1021 MCACC flashing, can't find problem
    by burntonnerings
    Have a Pioneer VSX-1021 that goes to MCACC flashing as soon as it is plugged in.

    If I enter release mode, it powers on, the screen display is correct, but then it shuts down and goes back to MCACC after a few seconds. I can shut it down to standby (w/o flashing MCACC if I hit the power button as soon as release mode finishes the boot sequence).

    Entering reset mode and executing a reset doesn't change this.

    I am unable to enter service mode to see the error counts - Enter + Power button doesn't do anything, whether from normal standby or from MCACC flashing....
    12-09-2023, 10:11 PM
  • Maanu
    HP PRO X2 612 G1, why cant i read the BIOS?
    by Maanu
    Dear Badcaps, i got a HP PRO X2 612 G1 with a BIOS password. Im pretty new to the whole BIOS flashing game but i was able to flash a HP Probook 2 weeks ago with help of this forum.
    Now with the HP PRO X2 612 G1 i have the problem that im not 100% sure if i got the right IC and if i am doing everything right in terms of reading it.
    I use the CH341A to read the BIOS. The Chip i try to flash got "771AW G GBA 609B" writen on it. I tried with the 25xxx and the 24xxx slot but i dont get a read from AsProgrammer :/

    I solderd it out and put it on the 25xxx frame that...
    12-09-2023, 11:14 AM
  • inflex
    Microsoft Surface Go 2 ( 'Model: 2013' ) Boardview & Schematics wanted
    by inflex
    [URL=filedata/fetch?filedataid=320731][ATTACH=JSON]{"data-align":"none","data-size":"medium","data-tempid":"temp_320731_1701956878304_830"}[/ATTACH][/URL] [URL=filedata/fetch?filedataid=320732][ATTACH=JSON]{"data-align":"none","data-size":"medium","data-tempid":"temp_320732_1701956882551_723"}[/ATTACH][/URL]​

    Looking for Boardview & schematic for this Microsoft Surface Go 2. Only thing I have on the bottom is "Model: 2013" beyond what is already written...
    12-07-2023, 07:50 AM
  • mitsu2k
    Power-One solar Inverter driving me NUTS!!!
    by mitsu2k
    Hello folks, this is a last ditch effort. I thought I would seek your expertise before giving up.. I have been working on this thing for over 2 months and have gotten nowhere. Here is the issue:
    Inverter powers on and immediately red GFI light comes on and inverter will not complete the initialization process.
    There is no error code on the screen. I have removed most of the Y capacitors and tested to no avail.
    All relays are good.
    I replaced the current transducer- same problem. Checked most of the transistors and diodes and all appear good. I wish I could get my hands...
    11-13-2023, 07:19 PM
  • Dallas90
    MacBook pro A1502 - No power Need help
    by Dallas90
    I have a MacBook Pro A1502 with no power.

    180-200mA without battery, 1500mA with battery, and orange light on the charger.




    Short facts:

    *USB with LED lights up.

    *No fan spin.

    *Adapter sense and sys_onewire is ”only” 2.861V.




    I checked the DC board as well and the adapter sense is 2.861 V, I'm not sure if it's too low

    That's why I'm asking you guys for help.
    12-04-2023, 05:10 PM
  • chth96
    Is it okay to replace 1/2 watt resistor with 1 watt resistor in AC/DC adapter?
    by chth96
    I have purchased an 100-240v AC/5v 2a DC adaptor from aliexpress,and a month ago It smelled burning when I plugin it powerstrip.
    Since then, This AC/DC adaptor have been out of order.
    But A few days ago,I replace 0.5 watt resistor with 1 watt resistor(1ohm) in this adapter.
    After replacing resistor,It succeed to recharge all of android phone.And When I measure voltage on the two pins of USB port,It shows 5.5v
    Is it okay to replace 1/2 watt resistor with 1 watt resistor in AC/DC adapter?
    And Is there any possibility that it will suddenly explode as well as to be out...
    12-03-2023, 04:40 AM

Trending

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  • PontyPCs
    Sony Android TVs eMMC Issues
    by PontyPCs
    Hi people.

    I have been trying to get my head round these issues with the eMMC putting the TV in to a boot loop condition, or completely dead, when a dump of the Boot 1, Boot 2 and USERDATA partitions have been made, the MLC lifetime counter has been reset, using the original eMMC with the RPMB partition intact and the eMMC is flashed with the original dump, Netflix and a few other Apps don't work. i assume all the DHCP keys and factory programmed RPMB access Key will be contained within the original dump, and as we are re-flashing the original eMMC i would expect every thing to work....
    Yesterday, 10:43 AM
  • Ancient1
    Interesting unusual Panel Defect ?
    by Ancient1
    Hi

    Photos tell it all really.
    The bulge in the area before the panel Matrix .
    To me it looks like a local short that heated inside.

    Should I waste my time in flipping the panel , as if this issue can be repaired ?
    The distribution board at this end looks ok , though I did not measure anything

    What are your thoughts ?

    Cheers
    Yesterday, 11:30 AM
  • ozguven
    SONY KDL-40NX700 2 red led blink problem
    by ozguven
    When the power is turned on, a snapshot appears on the screen and it turns off. 2 red LEDs are flashing.

    I disconnected the power module cable going to the main board. I threw a power on jumper with 3.3 v from outside. The relay is working and there is 12v and other voltages in the power socket.

    Where else should I look? All fuses appear to be intact.​
    Yesterday, 02:26 AM
  • volcour
    L14 Gen 2 Type 20X2
    by volcour
    hello everyone i need original bios and EC of this laptop

    [COLOR=#2980b9][B]L14 Gen 2 Type 20X2-s2c100[/B][/COLOR]

    SN [COLOR=#e74c3c][B]PF3G8DFB[/B][/COLOR]hello everyone i need original bios and EC of this laptop

    [COLOR=#2980b9][B]L14 Gen 2 Type 20X2-s2c100[/B][/COLOR]

    SN [COLOR=#e74c3c][B]PF3G8DFB[/B][/COLOR]
    hello everyone i need original bios and EC of this laptop

    [COLOR=#2980b9][B]L14 Gen 2 Type 20X2-s2c100[/B][/COLOR]

    SN [COLOR=#e74c3c][B]PF3G8DFB[/B][/COLOR]hello everyone i need original bios and EC of this laptop
    Yesterday, 05:47 AM
  • mrmonza
    Power board problems bn44 00859a
    by mrmonza
    Hello. I have a samsung ue55ju6875u that hade led backlight problem and the cause was a glitchy conector to the led feedstrip.

    The problem now is that the wire pin 1 on the led connector broke lose an shorted against the chassie and now the tv is dead, no red light when plugging in the power cord before the short the relay clicked and it was a red light for a few seconds then it blinked 5 times.

    The power board is an bn44 00859a can anyone point me in the right direction what to check to solve the problem or maby someone have an electrical diagram for a bn44 00859a....
    12-09-2023, 08:57 AM
  • burntonnerings
    Pioneer VSX-1021 MCACC flashing, can't find problem
    by burntonnerings
    Have a Pioneer VSX-1021 that goes to MCACC flashing as soon as it is plugged in.

    If I enter release mode, it powers on, the screen display is correct, but then it shuts down and goes back to MCACC after a few seconds. I can shut it down to standby (w/o flashing MCACC if I hit the power button as soon as release mode finishes the boot sequence).

    Entering reset mode and executing a reset doesn't change this.

    I am unable to enter service mode to see the error counts - Enter + Power button doesn't do anything, whether from normal standby or from MCACC flashing....
    12-09-2023, 10:11 PM
  • Raulnn
    Sony KDL-50W685A horizontal black lines Pattern
    by Raulnn
    good morning! I have a problem with this Sony. The image has a pattern of black horizontal lines, I attach a photo of the lines. The power supply is external and emits a sound. I don't think it's because of that. Let's see if someone can help me.
    Yesterday, 06:50 AM
  • x_orange90_x
    TCL 55S451 Blank screen
    by x_orange90_x
    I picked up a 55" TCL 55S451 last week that is not displaying any picture. When it powers on the screen lights up but there is absolutely no picture on it. I can move around the Roku menu with the remote and I can hear it moving around and selecting things. I tried the RESET button on the main board dozens of times as well as the remote bottom combo to reset the tv.

    I ordered a replacement main board and power supply from eBay and put them in last night but STILL no picture. I get exactly the same results. The main board in my tv is 30800-000559 40-MR17T4 and the board I received...
    10-27-2023, 05:28 AM
  • huzo
    Acer laptops and keyboards
    by huzo
    I noticed in manny cases the following : You press the power button and laptop starts turning on and then goes off again, but if you press any key on the keyboard and hold it, the laptop stays on and works fine! The power button works, any other button works , but one button must always be on!

    Has anyone else notice that? I was meaning to write about this topic a few times already , but never got to it, and today i got Aspire A315-42 with i5 10th gen. and it has the same issue and i got mad and now i am writing about it!

    If you hold any button on the keyboard the laptop...
    Yesterday, 11:53 AM
  • mitsu2k
    Power-One solar Inverter driving me NUTS!!!
    by mitsu2k
    Hello folks, this is a last ditch effort. I thought I would seek your expertise before giving up.. I have been working on this thing for over 2 months and have gotten nowhere. Here is the issue:
    Inverter powers on and immediately red GFI light comes on and inverter will not complete the initialization process.
    There is no error code on the screen. I have removed most of the Y capacitors and tested to no avail.
    All relays are good.
    I replaced the current transducer- same problem. Checked most of the transistors and diodes and all appear good. I wish I could get my hands...
    11-13-2023, 07:19 PM
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