Hi, I have a problem with my ASUS K53SV (motherboard rev 2.3).
When I plus the DC jack it automatically power on with black screen (and no backlight), unresponsive keyboard, LEDs power and num lock green (if the battery is plugged in the battery LED becomes red), no video output fromVGA /HDMI ports, no beeps.
If I keep the power button pressed it shuts off but then it powers back on automatically with the same problems + the caps block LED green.
I found that almost all the capacitors and the mosfets (source-drain) are shorted in the area of the picture.


I also measured the various points written on https://www.elvikom.pl/schemat-asus-k53s-k53sv-x53s-x53sv-t31159.html#p140229:
Could you help me to repair this notebook?
Thanks in advance
P.S. without RAM/HDD still no beeps
When I plus the DC jack it automatically power on with black screen (and no backlight), unresponsive keyboard, LEDs power and num lock green (if the battery is plugged in the battery LED becomes red), no video output fromVGA /HDMI ports, no beeps.
If I keep the power button pressed it shuts off but then it powers back on automatically with the same problems + the caps block LED green.
I found that almost all the capacitors and the mosfets (source-drain) are shorted in the area of the picture.


I also measured the various points written on https://www.elvikom.pl/schemat-asus-k53s-k53sv-x53s-x53sv-t31159.html#p140229:
Kod: Zaznacz cały
TOP MEASURE
PR8824 +3VA 3.3V
C6903 AC_BAT_SYS 19.1V
D4601 PM SUSB# 3.3V
LR4 BUF_PLT_RST# 3.3V
R0334 H_DRAM_PWRGD ?
D2605 +3VSUS 3.3V
PD8301 +5VSUS 5.0V
R2218 PM_RSMRST# 3.3V
D2201 SUS_PWRGD 3.3V
R2239 PM PWROK 3.3V
C3015 CPU_VRON 1mV
C3011 EC RST# 3.3V
Q7712 SUSB EC#
bottom left 5V
middle left 3.3V
C3006 +3VA EC 3.3V
PU8101 +5VA 5V
SL3001 SUSC_EC# 3.3V
BOTTOM MEASURE
PR8704 VRM_PWRGD 3.3V
SL0303 H_CPUPWRGD 1.05V
PC8130 +12VSUS 13V
U5802 ALL_SYSTEM_PWRGD 3.3v
Q3002 ME_SUSPWRDNACK 3.3v
Could you help me to repair this notebook?
Thanks in advance
P.S. without RAM/HDD still no beeps