Asus K43sv- Display?

[lorins_core]

Hello to all Badcapsian...

i'm here again to ask a help about my Asus K43SV

Main Problem No Display

No.1 No Display
No.2 Automatic turn on if i plug the Adapter (Supply)

i do the following.
1. Cleaning mobo, ram (3 Brands i test but 2 of them is 100% working)
2. Change Adapter (supply)
Also I test The LED to Working Unit as a same compatible type ( LED Working)

but i avoid Reheating the VGA Chip


i need your Solution... TIA

[lorins_core]

Re: Asus K43sv- Display?

Updating......

I look at the the board they have corroded @ ITE Chip as know IO Chip
- i try to re soldering the pin and trace no open circuit.
question in is a Culprit on the system board. or if i have a same chip available and i Change it(replace As Same type). can do anything example: Update bios...
Need Advice Please...
How can i Do?

[lorins_core]

Re: Asus K43sv- Display?

Follow up.....

[mcoytzhi27]

Re: Asus K43sv- Display?

Hello to all Badcapsian...

i'm here again to ask a help about my Asus K43SV

Main Problem No Display

No.1 No Display
No.2 Automatic turn on if i plug the Adapter (Supply)

i do the following.
1. Cleaning mobo, ram (3 Brands i test but 2 of them is 100% working)
2. Change Adapter (supply)
Also I test The LED to Working Unit as a same compatible type ( LED Working)

but i avoid Reheating the VGA Chip


i need your Solution... TIA

flash bios

[mehar]

Re: Asus K43sv- Display?

flashing bios is the best option

[raizenn27]

Re: Asus K43sv- Display?

Hello there friends..,i also have same problem and i did try to flash bios but same outcome..is there any solution available out there?? Or some one have a schematic for this board..thanks

[Febri alfio]

Re: Asus K43sv- Display?

I also have same problem, k43sv rev 3.0,no display, but capslock usb keyboard normal

[vhn1998]

Re: Asus K43sv- Display?

I also have same problem, k43sv rev 3.0,no display, but capslock usb keyboard normal

check 3v LCD

[balobi]

Re: Asus K43sv- Display?

i have same issue. i check voltage on lvds section i 19v present but no 3.3v. i need schematic ot someone solve this kind of issue.

[balobi]

Re: Asus K43sv- Display?

check 3v LCD

did you solve the problem?

[ronelex]

Re: Asus K43sv- Display?

I also have this problem, with usb keyboard function, missing LED_BKLTEN and +3VS_LCD,
I tried to convert it to UMA by removing +VGA_VCORE coil and LED_BKLTEN and +3VS_LCD reads 3.3v but still no display

[emestee]

Re: Asus K43sv- Display?

Since you have corrosion on the board, you need to examine both sides of the board very carefully for additional liquid damage. Do not power up the board until you've cleaned it and replaced the corroded components.

Bear in mind that liquid and corrosion can get under big chips, and this is especially relevant for BGA ones.

After this do the standard diagnostics: RTC battery voltage, coil resistances, S5 voltage and current draw before proceeding further.

Please follow the methodology and do not attempt to guess solutions.