Re: Asus FX705DT eDP and HDMI output issue
Found the culprit after buying a new display and still not working....
Apparently a mosfet was acting bad and was lowering the output voltage for the display power supply.It seemed odd that on lower size displays sometimes i would get some lines and dots without backlight but the LED power supply was ok.The problem was on the LCD_VCC as it was varrying around 2.8-2.95 and was just beneath the treshold for working.I found out that it needed at least 3v to power on and 3v3 to work normaly.I did not think that such a small difference...
sebulica
Beginner
Last Activity: 04-21-2024, 01:00 PM
Joined: 03-18-2014
Location: Iasi
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Re: Asus FX705DT eDP and HDMI output issue
Tried that...won't start.Probably the algorithm for power on includes lid checking.Also tried to put a magnet on the hall sensor after powering on but still same result.Keeping the magnet on tha sensor,after uefi boot will trigger the sleep function....
I want to turn this board in a "mini pc" as it's not worth it to replace all the external defective parts...keyboard,display,case,trackpad and battery...
I think this is the first time i find a laptop that will not accept a lower size of display iven...Leave a comment:
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Re: Asus FX705DT eDP and HDMI output issue
ok,i tried to reroute the signal but still no image.I have managed to put an ssd with windows on it and acces to internet and after a while it automaticaly installed the video driver and got an image on hdmi.tested out the laptop and everything seems ok except the iGPU that states it can't start.i suppose that happens because it can't "detect" any internal display.
if anyone managed ever to convince the iGPU to accept a different display than the one installed from the factory,point me to an explanation so i could...Leave a comment:
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Asus FX705DT eDP and HDMI output issue
Hi
I have an Asus FX705DT that had waterdamage....a lot
I have managed to make the motherboard look like working but i stil have some issues and maybe someone can point me in the right direction.
The laptop has a destroyed keyboard and the display is dead but i have managed to make the board start up and work "normal"...i have no short,power rails are looking good,hdd/ssd activity and so on.
The problem is that there is no HDMI output,only sometimes makes the tv/monitor go black screen for a brief moment,and on the internal... -
Re: Lenovo IdeaPad 330S-15ARR - 330S_ARR_V06
The board acts like it does not recognize or accept the onboard ram.I found another board working cheap enough.thank you for your time...Leave a comment:
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Re: Lenovo IdeaPad 330S-15ARR - 330S_ARR_V06
On post #5 is the dump for 9022...i have 9028.i have written it but the laptop does not start with that dump.I wrote multiple bios dump including from here,but i still suspect the ec might have a corrupted firmware on it.
but thanks for suggestions....Leave a comment:
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Re: Lenovo IdeaPad 330S-15ARR - 330S_ARR_V06
Hi,
Can someone help me with a good kbc dump for 330s arr v 06 ?
I made a dump with CH341A of the ene chip and bios...I think they got corrupted by an abrupt shutdown during bios update.I tried numerous bios files but all act the same: no image and restarting every 5-10 seconds with a short blink of power led....Leave a comment:
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Lenovo ThinkBook 15 G2 ARE no image after bios update
Hi,
As the title implies,i have a Lenovo ThinkBook 15 G2 ARE with no display after a bios update made by windows trough optional updates.The laptop charges the battery,recognizes the charger (hopefully),starts up but has no image on screen.I have tried rewriting the bios with a few dumps i have found on the forum and outside of it but nothing changes.
So,when i press the power button,the power led,FnLock,CapsLock and NumLock led lights up for 2 seconds then the CapsLock and NumLock turn off and just...Leave a comment:
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Re: Dell Inspiron 15 5567 unknown charger
i can confirm the PQ6 replacing that fixes most of the problems.after replacing the line got 3.3 exactly on it.i have replaced pq6 from another dell motherboard for parts from an older model.
cheers for the solution
LE:
for those who can't fix it easily,you can do a soft bypass but it's not great.under windows you must disable the intel ppm from registry...
solution explained here : [url]https://www.thewindowsclub.com/cpu-is-not-running-at-full-speed-in-windows[/url]Re: Dell Inspiron 15 5567 unknownLast edited by sebulica; 01-12-2023, 02:47 PM.Leave a comment:
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Re: Hp 250 g7
i don't have a shop...i just fix laptops in my free time and learn from the process.
i have encountered similar behavior with hp before...leaving the board without power for a few hours somehow magically fixes strange issues until someone trips the issue again(bad charger,bad battery,faulty bios battery etc).but still no explanation at least to feel comfortable that i can "fix" stuff like this in the future
anyway thanks for the support
Leave a comment:
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Re: Hp 250 g7
so today,the strangest thing happened....i have tested again with different adapters and measured the ADP_SIGNAL.with the 45w i got 19.73 with 90w i got 19.83 and when i connected the 120w one i got 0....strange.reconnected it and was 19.85 and then the laptop started working again...
now it works just fine with any adapter,battery connected or not.now how do i explain that to the client ?! i did nothing since yesterday when it was dead with any charger.
Leave a comment:
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Hp 250 g7
Hi,
I have a hp 250 g7 laptop with a strange issue.If the laptop is off it charges the battery but when i turn it on it "disables" the charger.If the charger is connected and the battery is connected,the charging led will change colour accordingly(orange charging,white fully charged) while the laptop is of.As soon as i press the power button,the charging status led goes off and the laptop starts on battery.The bios,linux or windows will not recognize charger,no matter the charger connected (tried 45,90 and 120w).
If i connect the charger but disconnect the battery,the... -
Re: Hp tpn-q208 dag7blmb8d0 rev d
Yeah.Can you post it ? thanks...Leave a comment:
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Re: hi guys i need this schematics da0zawmb8g0 rev g
Here is the boardview and the app to open the boardview.there might be people looking for this
Also is for an Acer Aspire A315-55
In the boardview you have beside the boardview,all the parts with theyr characteristics.Just look deeper in the app if it's new for you.
Cheers...Leave a comment:
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Re: Dell Inspiron 15 Gaming 7577 LA-E991P REV:1.0 Schematics
thanks.i found another dell board with the same ic and replaced it.but i still need a schematic if there is someone with it....i have 3v3 and 5v but does not power on.i don't have any shorts and whenever i try to press the power button the fan tries to start and moves just a little bit but stopsLeave a comment:
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Re: Boardviews of some phones/tablets
here you go my collection of software and schematics....you have there ipad,iphone and some samsung schematics and tools.enjoy
[url]https://mega.nz/folder/KZIgWD7T#AHzYVDjiUUkeU5noneIImg[/url]Re: Boardviews of some phones/tablet...noneIImg[/url]Leave a comment:
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Dell Inspiron 15 Gaming 7577 LA-E991P REV:1.0 Schematics
Hi,
Can anyone help me with a schematic?
Or at least tell me what is the UZ1 ic..
ThanksLeave a comment:
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Re: Dell Precision M6700 LA-7933P Bios files (Clean ME)
thanks,works greatLeave a comment:
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Re: Graphics card Schematics and Boardviews
Hi
Does anyone have a boardview for a MSI 1070 GAMING X 8G ? (v330 ver6.0)
Or a schematic...
I have one with a burnt pcb close to power connectors:
[url]https://mega.nz/file/DZAASJaB#QctSkz_HUEVDAeT15pig7FF9Qc_O-opUFdq_kNjh9iI[/url]Re: Graphics card Schematics and Boa...//mega.nz/fileLeave a comment:
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