i have one of these boards and it goes to the vga indicator LED (white) and then it stops there. i've taken the bios chip off and written directly to it. i'm sure where else to go with it
b550-F
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by chth96Hello.
I have T12-952 soldering station which is not able to display any screen But When I power on it, iron become hot.
I desolder some components to check whether it have been faulty or not, But When I tried to desolder an IC Which is written "601Km" on the surface,I broke leftmost pin like attached photos.
I use Mini Drill in order to peel off plastic suface but I cannot found copper sheet which is supposed to be pin3.
What is name of IC which is written "601Km" on the surface?
and Is there any...3 Photos -
by binary0101Greetings
I got an Asus X453SA for repair
Symptom : no display, with charging indicator blinking, with or without battery. Power indicator is steady. When battery plugged in, the current consumption jumps, but the charging indicator is still blinking.
Here is the measured power sequence :
+3VA_EC +3.3V
EC_RST# +3.025V
+5VSUS_ON +3.307V
PWR_SW# +2.982V
3VSUS_ON +3.307V
SUS_PWRGD +3.386V
+1.05VSUS_PWRGD +1.061V
1.8VSUS_EN +1.873V
VSUS_PWRGD +3.383V
PM_PWRBTN# +1.830V
PM_RSMRST#... -
by Caly411Hi, Im having a similar problem with my Acer Nitro 5 AN517 52, took it to repair and they said that the problem was a burned mosfet wich has written on top "I6 GUE 8v1507".
There is written PQB12 on the motherboard right next to it.
Does anyone know if there is soemthing similar I can buy to replace it with?
Seems impossible to find theidentical mosfet online. -
by roy.zheroI acquired a free 50” TV. IT is a Sharp LC50LE752E. It does not show a picture and has no backlight, although the indicator light turns blue meaning it has turned on.
When power is plugged in, the indicator light will turn on blue, the backlight stays off and nothing is visible, even with a flashlight. When pressing the touch buttons on the tv nothing happens. When pressing buttons on the remote control the indicator light will blink indicating the IRsignal was received, but nothing happens.
When I hold the force-on-combination it will turn on. It then shows a perfect... -
by Sus256Hi all!
HISENSE 65E7KQ PRO
RSAG7.820.13512 - chassis
MT9618BAATAB - cpu
RSAG7.820.12059 - power
HD650Y3U77 - panel
KLM8G1GETF - emmc
The TV does not turn on, the standby indicator is on. All voltages are present.
Emms is dead. Not readable, not detected.
Replaced emmc.
But with another dump there is no launch
Terminal log
UART
<
AC_ON
RPMB key is not yet programmed
HASH1_VERSION=0x00000000 64bit
E-B
FDE enabled
layout pattern onebin by SAR7,0... - Loading...
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