my g513rc was doing a windows update and it had a bios update in it, the system rebooted, was doing something rebooted again, and hasnt functioned properly since..
ive researched reparing my bios, i have a ch341a black with 1.8v adapter, ive made 4 seperate dumps at different times for redundancy...
i have a feeling my bios is corrupted and preventing my system from booting..
does anyone have a g513rc bios dump i can test ???
or is anyone willing to help me out in another section with fixing my dumps ??
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I downloaded a BIOS file from Lenovo and once I extracted the actual BIOS from the executable, it is 16MB in size, but my IC(Winbond 25Q80DV) is only 8MB in capacity. I have read you can trim the BIOS file with a hex editor but I can't find any instructions on specifically what you will remove.Today, 10:55 AM
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by прямоAnyone is familiar with a TRIAC circuit?
I came across this schematic, and I built it, but I can't seem to figure it out why I'm getting a low AC voltage output at the TRIAC terminals.
With 230V AC hot side at the TRIAC MT2, I measured 60V AC between MT1 and neutral side when the comparator output LED indicator is on, and 20V AC when it is off.
Same result if 230V AC hot side is at MT1, and I measured between MT2 and neutral side.
My heating element doesn't work with 60V AC. It's not even getting hot and the thermocouple amplifier output is a...1 PhotoToday, 02:12 AM -
by fuusEvening all,
Long time no post!
I have a UE49NU7100K here with the classic melted diffuser and damaged backlight from getting too hot. Locally there is a UE49MU6470 available which I could pick up to replace the melted diffuser. Would this work or am I missing something? They look like the same style of backlight.
If this sounds good, where is the best place to buy a new backlight? Will I regret buying from Aliexpress?
Thanks in advance for any help04-04-2024, 03:34 PM -
by ChattFixHello everyone, I got a TCL 75S421 with no backlight. I swapped out the LEDs and still getting nothing. I checked a few readings, see pictures below. Can anyone point me in the next testing area or what to look at next?...04-21-2024, 09:20 PM
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by crosswindsHello,
So, pulled a motherboard out from storage, was working when put away, wont post when I took it out of storage today.
Since it was working, and it looks to be essentially time that killed it I figured its a good idea to replace the caps before digging further.
Looks to be only good quality caps on this board, so might not be the issue. But it is closing in on 20 years now so, wont hurt i guess
Its a ASUS P5VDZ-MX board.
I would really appreciate some assistance on what the best replacement caps would be for these:
Panasonic(M)...-
Channel: General Capacitor Questions & Issues
04-17-2024, 04:25 PM -
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by michdundeeHi all,
I'm facing a issue... hope you could help me. I have a T-CON board BN41-02112A from Samsung 55inch Curve TV.
I have just only 2 status blue LEDs ON since LED3 is off. I have tried to test some test points but VON is NOT OK very close to 0V. Is there someone that can help me on the debugging the issue? I'm supplying the board from an external 12V voltage source.
Thank you in advance.
BR,
Michele
[ATTACH=JSON]{"data-align":"none","data-size":"full","data-attachmentid":3259938}[/ATTACH]...04-25-2024, 12:37 PM -
by guizmo1967Hello,
My Asus monitor stop working today !! I found the problem on the main board, the power supply board is ok. It's Q9, a mosfet but I have no idea what are the specs since I don't have the schematic for that monitor !!
Can someone help me identified this mosfet ?
Thank you !1 Photo-
Channel: Troubleshooting Computer Displays
04-16-2024, 01:15 PM -
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by zaliukHello, could someone spare me a Schematics for ms-7b58 rev 1.0 board MSI Z370 Gaming M5, got shorted two rails - 5v. and 3v., trying to find the cause.
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A2442 hinge sensor has liquid damage, not possible to repair, is there any alternate?...Yesterday, 03:26 AM
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I downloaded a BIOS file from Lenovo and once I extracted the actual BIOS from the executable, it is 16MB in size, but my IC(Winbond 25Q80DV) is only 8MB in capacity. I have read you can trim the BIOS file with a hex editor but I can't find any instructions on specifically what you will remove.Today, 10:55 AM
-
by tnap1979my g513rc was doing a windows update and it had a bios update in it, the system rebooted, was doing something rebooted again, and hasnt functioned properly since..
ive researched reparing my bios, i have a ch341a black with 1.8v adapter, ive made 4 seperate dumps at different times for redundancy...
i have a feeling my bios is corrupted and preventing my system from booting..
does anyone have a g513rc bios dump i can test ???
or is anyone willing to help me out in another section with fixing my dumps ??-
Channel: BIOS Requests ONLY!
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by balluI need schematics and board view for these models. Please anyone got these files.
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lenovo miix 310-10icr boardview
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Channel: Schematic Requests ONLY!
Today, 03:37 AM -
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by zaliukHello, could someone spare me a Schematics for ms-7b58 rev 1.0 board MSI Z370 Gaming M5, got shorted two rails - 5v. and 3v., trying to find the cause.
Thanks in advance ...-
Channel: BIOS & Schematic Requests!
Today, 07:04 AM -
-
by michdundeeHi all,
I'm facing a issue... hope you could help me. I have a T-CON board BN41-02112A from Samsung 55inch Curve TV.
I have just only 2 status blue LEDs ON since LED3 is off. I have tried to test some test points but VON is NOT OK very close to 0V. Is there someone that can help me on the debugging the issue? I'm supplying the board from an external 12V voltage source.
Thank you in advance.
BR,
Michele
[ATTACH=JSON]{"data-align":"none","data-size":"full","data-attachmentid":3259938}[/ATTACH]...04-25-2024, 12:37 PM -
by прямоAnyone is familiar with a TRIAC circuit?
I came across this schematic, and I built it, but I can't seem to figure it out why I'm getting a low AC voltage output at the TRIAC terminals.
With 230V AC hot side at the TRIAC MT2, I measured 60V AC between MT1 and neutral side when the comparator output LED indicator is on, and 20V AC when it is off.
Same result if 230V AC hot side is at MT1, and I measured between MT2 and neutral side.
My heating element doesn't work with 60V AC. It's not even getting hot and the thermocouple amplifier output is a...1 PhotoToday, 02:12 AM -
by J PeltonenI cant create a flashdrive for unlock .bin because i cannot install software to make one cause its laptop i bought online but its locked to root dont own admin user for OS which blocks my intend to install any setup to start unlocking bios without having dells tool in pre installeded folder so can someone share me unpacked client to dell laptop what is to make biosflash for usbstick??
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Today, 08:36 AM -
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by tec3000Hi community! Germany calling I am wondering if you guys can help me out. I have an issue with my Sony LED TV. I've been told this is a good place to ask. Thanks for anyone who will reply and offer advice. Appreciated!
I have a KD-65X9005A Sony 4k LED TV. For a few weeks I've got this problem where I turn on the TV and within a few seconds the TV starts getting darker until it shuts itself off and I get the 4 blinking error code. HOWEVER there is one exception: Whenever I switch to the i-Manual, a full screen on-screen instruction manual, the TV never turns off. I tested for hours!...03-20-2024, 07:29 AM -
Hi, all. I have an Asus Rog Strix GL703G. Yesterday I took it apart to clean out the dust and redo the thermal. Unfortunately, when I attempted to pull the battery, the metal retaining clip (unable to retain itself due to genius engineering) popped off and shorted across the capacitors behind it. Now I have no response from the laptop with or without the battery.
I'm hoping maybe someone can help me read the board and figure out what potentially shorted. I have a soldering station, I can run hot air, I have a multimeter, I just have no idea how to trace or measure the power circuit....03-08-2024, 04:35 PM -
Anyone know moatherboard ruf the blacklight fuse ? Where they are ? Is an AMD Ryzer 5 i spend couple of hours to fiind it and still not fiind nothing....the problem is once i connect the afaptor i have image but not blacklight..when i remove the adaptor and stay on battery i not have at all image...and i thing so is the fuse problem2 PhotosYesterday, 08:29 AM