Asus K43sv- Display? - Badcaps

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lorins_core

BlackSmith

Join Date: Dec 2012

Posts: 551

Country: Philippines
#1

Asus K43sv- Display?

02-16-2016, 10:10 PM

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

Last edited by lorins_core; 02-16-2016, 10:12 PM. Reason: LED
Tags: None
lorins_core

BlackSmith

Join Date: Dec 2012

Posts: 551

Country: Philippines
#2

02-17-2016, 03:00 AM

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?

Last edited by lorins_core; 02-17-2016, 03:01 AM. Reason: do it
Comment
lorins_core

BlackSmith

Join Date: Dec 2012

Posts: 551

Country: Philippines
#3

02-18-2016, 08:35 PM

Re: Asus K43sv- Display?

Follow up.....
Comment
mcoytzhi27

Mr

Join Date: Nov 2015

Posts: 43

Country: philippines
#4

02-18-2016, 10:36 PM

Re: Asus K43sv- Display?

Originally posted by 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

flash bios
Comment
mehar

Member

Join Date: Feb 2015

Posts: 12

Country: USA
#5

02-19-2016, 01:29 AM

Re: Asus K43sv- Display?

flashing bios is the best option
Comment
raizenn27

Senior Member

Join Date: Jun 2011

Posts: 95

Country: philippines
#6

05-10-2017, 10:06 PM

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
Comment
Febri alfio

Member

Join Date: Jan 2018

Posts: 14

Country: Indinesia
#7

01-27-2018, 03:18 AM

Re: Asus K43sv- Display?

I also have same problem, k43sv rev 3.0,no display, but capslock usb keyboard normal
Comment
vhn1998

Senior Member

Join Date: Jun 2015

Posts: 56

Country: Vietnam
#8

01-27-2018, 03:20 AM

Re: Asus K43sv- Display?

Originally posted by Febri alfio

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

check 3v LCD
Comment
balobi

Senior Member

Join Date: Jan 2015

Posts: 88

Country: phillippines
#9

10-21-2020, 04:08 AM

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.
Comment
balobi

Senior Member

Join Date: Jan 2015

Posts: 88

Country: phillippines
#10

10-21-2020, 04:10 AM

Re: Asus K43sv- Display?

Originally posted by vhn1998

check 3v LCD

did you solve the problem?
Comment
ronelex

Senior Member

Join Date: Oct 2016

Posts: 195

Country: Philippines
#11

12-20-2020, 03:01 AM

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
Comment
emestee

Badcaps Veteran

Join Date: Dec 2019

Posts: 228

Country: Bulgaria
#12

12-20-2020, 12:04 PM

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.
Comment

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