ASUS P2451F need schematic or element identification info. (foto)

[warsztat]

Hi, Asus P2451F board P2451FB rev2.0, flooded with liquid. I need schematic or element identification, please see the photo.
Regards for all....

[France_53]

Hello everyone from Italy, I'm here to ask for help on a Vestel TV, I've had a Vestel TV branded "XD" with a broken screen for years, but now I've found a Telefunken (still Vestel but older) and I've mounted the panel on the "XD" TV, it works, but the screen is upside down, given that Vestel does not allow you to rotate the image from the service menu, does anyone know how to solve the problem? the original panel is marked ves315WNDS-2D-N12 while the main board 17mb110, the panel I mounted instead in the tv (from the telefunken) is a ves315WNDA-02. ... It is not worth repairing...

[Epagec]

Hello everyone

I have this compaq Armada 7730Mt (pentium 166. Mhz 1mmx laptop)

It's working well except pccard slot not working and fan not spining.

I have a short on what I suspect to be a 12v rail (related to the fan)

As you can see I removed the coil, it's ok no short on upper side but I have only 0,2V and the down side is shorted

When I inject I have 3amps at 1V but nothing going hot with thermal cam.

Do someone knows this board and could tell me which voltage rail it is (and what it's used for)

I don't...

[Mugar]

Hey guys got laptop like above. Came to me with shorted main power rail and battery protecion on ( 0V on output). Got rid of short but nothing. Bench power supply says it takes nothing, but still got all voltages 1,2v,3.3v,5v - all good. Thermal cam showed nothing is starting even for a sec. I believe that since all coils etc are good resistance to ground it's probably one of chips. Can be IO chip or maybe something else? Could somebody help me out with this one - it's blowing my mind lol

[audision]

schematics or boardview RX570 8GB

[clearchris]

This crossover was bought new about 12 years ago, and has probably been powered on for at least 3/4 of that time. It also has a recently developed horrible sound on the second channel, sometimes it's a wub-wub-wub, sometimes it's just a hum that comes and goes. It's not noticable if something is playing (it may be gone), but it's quite noticable if there is silence.

Because of age and problems it's due for a recap. I'm also strongly considering putting in sockets to potentially replace the 12 ST TL072 opamps. For such a small device, it's still going to be over 30 screws to take...

[m4a2t0t]

I can see the image in the background with a flashlight. I have 260V on LED+ and 90V on LED -. The backlights were acting weird with my tester so I pulled the panel and one LED does take about 2 seconds before it lights up but thats it. Is the voltage at the LED connector correct?...

[ImpossibleRepairs]

Howdy good peoples;

looking for some advice on Pad repairs, want ti expand my skills

Working on a HP board that went for a swim; There was a short in what appeared to be the Data IC (there was corrupted data that we recovered) ;

First picture is the donor Board, clean removal;

Second picture is board im working on; As soon as I started prepping the pads to re work the IC, the damage started;

As a side note, Im using good equipment M series Thermal tronics iron with a 1.6m tip; Good quality locally produced flux, good quality...

[bogosort]

Hello,

I have a Sony DVD player with a stuck tray. It seems that moving or pressing on the tray makes it work.

Anyone knows why?

Thank you....

[sabri07]

Hello freinds i have this error 1300 from printer canon G3420 , i saw a lot of video a bout this Damage but nothing help .
is this problem related by firmware or dump .
please Help me...

[andrhouseolly]

Hi.
I kindly ask you to help me solve the problem.
Dell Precision 5510, motherboard AAM00 LA-C361P Rev:2.0
The board turns on, there is no image.
Read more. When the power supply is connected, the front panel indicators light up briefly.
When you press the power button, the button indicator lights up. The board works
there is no image, there is no matrix initialization, there is no image on HDMI.
When turned on, the fans do not spin, but when they warm up they start spinning.
When you turn off the button, the fans spin up to full speed for a short...

[jaroslav.psenicka]

Hi all,

just wonder whether the Raspberry PI-TOP v3 schematic is available?
not the Raspberry PI itself, but this little add-on board:

[ATTACH=JSON]{"data-align":"none","data-size":"full","title":"15175-pi-top_with_Inventor_s_Kit_-_Raspberry_Pi_Laptop-04a.jpg","data-attachmentid":3269081}[/ATTACH]

thanks,

-jpHi all,

just wonder whether the Raspberry PI-TOP v3 schematic is available?
not the Raspberry PI itself, but this little add-on board:
...

[wolf1976]

hi to all
do you know someone company in china e.g that sells display in normal values ?
thanks on advance...

[Yacine007]

Could someone assist in removing the BIOS password from this binf file? I've tried and failed to follow the guides regarding AMITSE decryption !

Laptop is an ASUS X541UV - bin file and pictures attached.

Thanks for reading!...

[James Boden]

Hey guys just wondering as to the purpose of these caps 560 but they seem to be shorted .. is it linked with the super low impedance of the CPU/GPU or do I have a short to search for ??.. the short is still there when caps have been removed.. sorry still learning really 😞.

[smaniak]

This battery PCB is new but was put in not its original charger, and now the battery won't charge.
First of all BMS chip is without a name. It is 20 pins but no marking.
On this board, I can't understand where B- the line is connected to the board.
Any suggestions about the BMS Chip and other things to look for?...

[GoodCapacitor]

I have an old Mikrotik board with one bulging capacitor. It still works, but the cap doesn't look healthy.

I have tried replacing it, however it seems to ignore my soldering iron like it's a toothpick. I do suspect an industrial-strength lead used during manufacturing.

How do I remove it without damaging the PCB and (more importantly) surrounding components which might be more temperature-sensitive.

[Shulgin]

Hello everyone,
I have a problem with my Acer predator XB241YU screen. When I plug it in, the startup LED turns on instantly, and I can't turn off the screen without unplugging it.
After disassembly and inspection of the electronic cards I found what looks like a broken inductor, it is marked with the letter A and is at location L58.
In the first photo you can see the broken component, in the second photo you can see where it is on the board, in the third photo you can see the silkscreen and in the fourth photo you can see the identification sticker of the main board
I...

[Björn Brunkau]

Hi there,
I am looking for help with my broken 980ti. Had a bad DrMos (the bottom one) and replaced it, card worked for a short moment, but I got another shortes DrMos (second one) and replaced that one aswell.
Now I don't measure any shorts, I have 12v, PEX, 5v, 3.3v all working fine (probing points on card), but I can't get any voltage at FBVDDQ or NVVDD probing points.

Where could I check to find the fault?
You think my first DrMos could be bad, because I read that the first one will activate core?
Don't want to replace that one when I can just test other...

[Travis Thomas]

Picked up a used MSI Ventus 1660 super with no video output for $50 to dip my toes into GPU repair. After some lurking around here, google searches, and youtube videos, I've gotten around to checking resistances, and checking for the base and minor rails. On first inspection, I didn't any shorts on any rails, so I powered up the card, and found the 5v, 12v, 5v, 1.8v, and Vcore(I hadnt found the 3.3v location at the time). Later, after finding the 3.3v, I got a pcie extension and powered up again. This time I found the 12v. 5v, 3.3v, 1.8v, Vcore, and Vmem. Later, when I wanted to doublecheck my...

[Travis Thomas]

Hey all,

So I bought a second hand Powercolor Hellhound Spectral white 6700 XT a while back. The only problem with it is that the LED switch on the PCB is broken. Anyone have a PN I can use to solder in a a replacement? Also, a Boardview or schematic would be good too. Thanks

[Deniz]

[victor.velo]

Hello / Bonjour All,

Could, please, some help in finding the Schematics for the Asus GX 701 GX rev. 1.6.

Thanks / Merci

[CornholioGSM]

Hello,
Will be possible to just read bios password?
My problem is, that a have put to this locked machine new ssw with preinstalled win and now is this ssd locked too

CF-D1AV312QW
SN: 4ETCA37953...

[RomanSko1]

Hello, gentlmen!!!
My HP Probook 430 g2 does not detect battery. I tested the battery on another laptop and it is OK.
I believe smth is wrong with my PC ((.
Searching this forum I found some nice suggestions.
So, I tested Battery Connector pins (charger in/battery out) and here are my results:

pin_1 0v (-)
pin_2 3.30v
pin_3 0v
pin_4 3.38v (SCL)
[B]pin_5 2.55v (SDA)!!![/B]
pin_6 2.25 (+)

As far as I understand SDA pin must be ~3.3v???
Are there any other tests I can do before disassembling motherboard?
I...

[tuankietkiet]

When plugged in (no battery installed), the battery light on the motherboard lights up and then turn off. When powering on, the same and light and the power button also light up in a white color but no output on the display. It stayed like that for a few seconds before shutting down. I also seem to ruined a connector that connects to the WLAN, 2 USB and audio board, the same board also have a melted 2062A IC. I will post pictures in the reply section

[Wanderer2467]

Hello all.

I am trying to repair a Gigabyte Z490 Aorus Elite AC motherboard that was roughly handled. It had some components ripped off the bottom of the board. The last two I am trying to replace are shown as CKA_FB1 and CKA_FB2 on the schematic and I think they are SMD 0402 30nH inductors to control the resonant impedance of the control rails. I have measured approximately 3.3VDC at CKVDD as per image below. On the board the still in place CKA_FB3 is 1mm x 0.5mm SMD component with a dark body.

I am not familiar with the symbols used in the schematic below if anyone...

[Hasith]

I have this Sony MBX-273 on my hand. 19V present but no Voltage on 3.3, 5V Coils.

It has a [B]SN608098 [/B]Chip. When I check its pins It shows;
19V on pin 6(VIN)
5.3V on pin 4(EN_LDO)
3.4V on pin 5(VREF3)
1.3V on pin 1(VREF2)

But only 0.46V on pin 7(LDO)

Is this means Chip is gone?

I have this Sony MBX-273 on my hand. 19V present but no Voltage on 3.3, 5V Coils.

It has a [B]SN608098 [/B]Chip. When I check its pins It shows;
19V on pin 6(VIN)
5.3V on pin 4(EN_LDO)
3.4V on pin 5(VREF3)

[vincent999]

I had problem with "Ideapad slim 5 16ABR8"
I believe 19V power line is shock to ground. M/B is not charging from Adaptor ( Adaptor is good ), Not sure about Power Jack but I like to make sure before changing the power jack. Laptop is on with battery but hot to touch near batter connection (Please see pic). I don't repair this board before and I'm beginner. Try looking for schematic and board view online but still no luck. Schematic or other help would be greatly appreciated.

Thanks

HLS4A LA-M653P
Rev : 1A
2022-12-27

[lorins_core]

Hello to all.

may I have a question about these Semiconductor parts BQ24800RUYR? can it be replaced with these parts BQ24780SRUYR?

I need some good advice and also some information about it. thank you and God Bless...

[yooolaaa]

HUAWEI MateBook X Pro 2022 12th
If you can, you can keep the DMI information
[ATTACH]n3268677[/ATTACH]
[ATTACH=JSON]{"data-align":"none","data-size":"full","title":"2024-05-11 093312.png","data-attachmentid":3268678}[/ATTACH]HUAWEI MateBook X Pro 2022 12th
If you can, you can keep the DMI information
[ATTACH]n3268677[/ATTACH]
[ATTACH=JSON]{"data-align":"none","data-size":"full","title":"2024-05-11 093312.png","data-attachm...

[budwich]

Got this projector which has a problem with a lack of blue. Menu text is very yellow... expecting white. If I input a signal from a test disc via hdmi, a red screen image shows a uniform red as expect. Green similar while the blue does show but with non-uniformity. Looked at the in-polarizers. They are all good and clean. Running the projector to expose the light area in the prism block, shows each color well represented, all looking about the same intensity from the naked eye. Looking at the prism block itself and sending a light source back into the "out port", the individual...

[osbln]

Hello everyone,

I like to repair everything I can get my hands on.
A friend gave me a laptop that fell down while it was switched on.
Now the display remains dark and the laptop no longer boots up.

Since my English is not so good, I worked with a translation tool. Please excuse me if something is not translated correctly.

Normally this device is not in a price category where you have to grit your teeth, but I really want to find the error and learn something in the process

Details of the device:

Manufacturer: Lenovo...

[Rezendes]

Hello, I am looking for any and all files related to the mainboard for 820-2565-A (13" Macbook Pro A1278 mid 2012) schematics/board view.

I looked through forum search results and google and was unable to find a board view file, I found a pdf of all the schematics but I don't know where the parts physically are on the board as this is my first macbook board level repair attempt.

The macbook charger has a green light, the battery has been replaced and OS reports Normal status but Not charging. After cleaning a corroded capacitor it crumbled off the board. There...

[James Boden]

Good evening, I've been stuck on a problem for a smidge now and not sure how to proceed..
Ps5 boots etc but just doesn't have any video .. put a new hdmi connector on and a new encoder.. and all the diode readings are good except
15- DDC clock - 671 - Iam getting 677
16- ddc data - 671 -iam getting 677
And hot plug (19) is 695 when should be 686..
Any ideas on what could cause this ? I have no knowledge of hdmi signals or EDM 033 board view to track where they go etc ..

Jim

[PITERPENY]

HI. I need help with this board! 5v/0a stable. Replacing the u7000 did not change the situation. Before I move on to replacing the SD3215, maybe there are some tips on what to pay attention

also need a diagram and boardview
[ATTACH=JSON]{"data-align":"none","data-size":"full","title":"820-00840.png","data-attachmentid":3268566}[/ATTACH]...

[mrgumshot]

[ATTACH=JSON]{"data-align":"none","data-size":"full","data-attachmentid":3268557}[/ATTACH] Hi All,

i’ve got a Asus laptop on my bench here with a shorted IC. I think its a Power regulator but i cannot find ANY info on this IC. I thought i’d try my luck here.

Had a coil which was shorted to ground. Injected 1V and watched this ic get hot under thermal cam. Removed the IC and the short was gone. Now its .3 voltage drop which is good.

So basically i need help identifying this IC.

it looks...

[PITERPENY]

Does anyone have a schematic and boardview of a motherboard with this chip?
[ATTACH=JSON]{"data-align":"none","data-size":"full","title":"820-00840.png","data-attachmentid":3268537}[/ATTACH]...

[fricosu007]

Hello friends, today i got an A2485 820-02100-A in a desd state, found visual short on PPVIN_5VUSBC23 line, removed tantalum capacitor, installed same same value from other donor board, now there is no short on any of the rails but when i plug either magsafe3 or usbc inget 5v stable with 0.00 amps drown, no cycle, just these steady values, board is not in dfu mode, checked with magsafe and with usbc. Only value that i find on the board is ppdcin_aon which is 5v… i dont get 3,3 aon, 3v8 aon .. all missing, where should i start looking please !...

[max2711]

Power board BN44-00757A
I can't recognized IC9001, 8 pin IC.
Please, help

[mekvit]

Please i need the working bin my Asus S550CA

motherboard number : K56CM Rev 2.0

PROBLEM : shutdown every 30 minutes

below is the attached file...

[s_henya]

Hi guys,

i want to challenge myself to fix this graphics card- I know it's low value :-)
01g-p3-1313-kr (GeForce 210)
found 1 blown fusible resistor R56 ( already removed)
1 shorted diode D5 (already removed)
and i suspect short on U2 (ic itself isn't shorted)

i would like to know substitute diode and look at the diagram of that circuit....

[Byte_76]

Hi, I have some capacitors that I need to replace on a graphics card.

I've attached pictures for reference.

Please help me to understand the ratings so that I can order the correct replacements:

[B]1. G7 560 2.5E - I believe these are for vcore[/B][LIST][*]Is this 560uF and 2.5V?[*]What does the "E" mean?[*]Is there any relevance to the "G7"[/LIST]
[B]2. ECX 17 560 2.5V - I believe these are on the memory phase[/B][LIST][*]Another 560uF at 2.5V?[*]This is on the same graphics card. If the caps are rated the same as those above, why...

[milktoast56]

I am struggling to find the LPC_DEBUG header pinout for this motherboard, does anyone know it?
Thanks in advance

[brokenbot26]

My laptop is black screen, but have power. HP 14s-cf0121TU.
LED status - 3 long 2 short.
Already replaced with new Ram. Same frequency. But same problem.
Any other solution? I'll just test the bios if corrupted. Thanks.

[umit]

I need schematic please help

LA-946P REV:1...

[90Ninety]

Hi

I have a 453 Mini , two of the four Sata ports are not getting 12V . I am wondering if anyone has knowledge on hardware repair on these devices . I have attached an image of the board , it appears the Sata ports are powered in pairs , the right pair are working , left pair no voltage ( 0.2V)


I have tried tracing the 12V rail , though have not been successful . I am guessing there is a Transistor or Mosfet that is open

Any help , perhaps a schematic?


The board otherwise appears to work fine .. Boots up ,
...

[bilalinfotex]

HELLO ALL
IHAVE DELL 15 3000 i5 4gen dis gpu
i tried several bios no result
note all bin Which I tried are i3 UMA .
motherboard code
iris hsw bdw 14216-1
1XVKN REV A00
can you help...

[mandirinet]

please..need bios for acer E5-476 DAZ8VRMB8E0 REV E model...

[Byte_76]

I have a Gainward GTX 295 with two PCB's which has a broken SLI bridge ribbon cable. As a result, the card is entirely useless and I'd really like to fix it if possible.

I've searched eBay and AlieExpress but haven't been able to find the part.

I believe this same SLI bridge cable is used on the Nvidia 9800 GX2 and the GTX 295 which both have two PCB's.

Can anyone help me on where to get a replacement SLI bridge cable please?

[J8rda7]

Hi,
when I received this TV, there was a faulty T-con (missing all voltages, only 12V OK), black screen, sound OK, backlight OK.. So I replaced the T-con and now it looks like this.. Thank you Very much for any hints, what I must to check or measure etc.. Have a nice day and sorry for my english 🙂...

[celiabrown]

Hello guys,
My Plasma Philips 37inch chassis FTL2.1 does no picture ,and goes into protection mode after 30 seconds (red led blinks at 3Hz).


Can someone has any symptom like this ?

Thanks

[Rofix]

Hello everyone, I kindly wanted to ask you for advice, on this PC as soon as I connect the power cable without doing anything the part where the CPU, GPU is heated up, with the bench power supply it absorbs 600 mA, without battery, kindly since I'm here various coils almost short what can we start doing? thanks for any advice


[ATTACH=JSON]{"data-align":"none","data-size":"full","title":"Asus 1.jpg","data-attachmentid":3268046}[/ATTACH]Hello everyone, I kindly wanted to ask you for advice, on this PC as soon...

[chth96]

I want to replace samhwa RG 250v 1uf capacitor which has no ESR value and has capacitance less than 280pf.
It is possible to purchase WCAP-ATG5 in local electronic shop.
But I want to know that whether WCAP-ATG5 capacitor has similar or better quality than smahwa capacitor or not.
Is there anyone who has experience to replace any bulge or faulty cap with cap from Wurth Elektronik?
[url]https://www.we-online.com/en/components/products/WCAP-ATG5[/url]https://I want to replace samhwa RG ...It is possible

[corrize]

[FONT=Calibri]Hello, I want to buy BGA balls (not stencils, only balls) but I don't know what size, it's just for reballing the new chip balled if the first attempt fail. So I will rarely use it. Probably chips are PMIC with max 60 balls. I don't need to reball EC chips from laptops of big chips like that.[/FONT]
[FONT=Calibri]So what are the 2 or 3 most used BGA balls sizes I should have for cover the jobs please ?[/FONT][FONT=Calibri]Hello, I want to buy BGA balls (not stencils, only balls) but I don't know what size, it's just for reballing the new chip balled if the first attempt fail.

[abajor]

I have a A2141 which fails DFU with error code shown in image.
Now instead of DFU it says "Recovery"

A little back ground on this laptop. I was thinking of writing a topic on corporate laziness and irresponsibility.
We acquired a handful of laptops which a very large company wanted to have shredded due to sensitive information.

Since apple has NSA grade drive formatting I think this is inexcusably lazy that the IT department doesn't just target mode format the drives and release the MDM, and donate the laptops.
Personally I think a large company...