Hello I have problem with a Samsung tv model ue50mu6122 was hit by thunder and now is not working. No standby light nothing
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Did other electronics die also? Lightning will destroy multiple items.
Check fuse on power supplyComment
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Please post a clear picture of the power board and one of the power connector showing the legend - what each pin output is, e.g. B5V, A5V, B13V, PS_ON...Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, bios, schematic, boardview (board view), datasheet, cad - use our search.
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Hello everyone,
Iām looking for help diagnosing a no-power issue on an ASUS ROG Zephyrus G14 (GA402R / GA402RK series). ā Problem
The laptop does not power on at all:- No LEDs
- No fan spin
- No response to power button
The issue started right after a RAM upgrade. The previous owner mentioned there may have been static discharge during reassembly.
š What I have checked so far (with a multimeter)- AC adapter is confirmed working
- 19ā20V is present at the DC jack
- Both input MOSFETs have 19ā20V on both sides
- Multiple inductors near the eDP connector
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Hello, as I mentioned in the title, I have a Samsung TV at home, model UE40MU6405U, which is about 5 or 6 years old.
After a power company failure, the TV stopped turning on and even the standby light wouldn't come on. Over a period of about 10 seconds, the electricity kept going off and on repeatedly, and the TV died.
The power supply is: L40E6_KSM (BN44-00875A)
The main board: BN41-02568B
The power supply board seems to be fine. All the voltages are present. If I disconnect it from the main board, I get backlight.
I've also checked the... -
Hi all,
TL;DR - this laptop is driving me nuts with the oddball power-related behaviors. Appreciate any insight you can provide!
I'm experiencing a power issue on an Asus Probook P5440UF-XB74. Although I've worked with electronics and computers for decades, this is my first attempt at getting into motherboard-level component troubleshooting. Any help the community can provide is greatly appreciated!
A few weeks ago I was using the laptop (on battery power) for a Zoom meeting. The battery was running very low (long meeting) but I wasn't worried about... -
Hello, I have a Samsung UN50EH5300 in my possession that I'm looking to bring back to life.
Symptoms:- - no power
- - no standby LED
What I've done so far:
- confirmed power supply is OK
-- CN201 #4 showing 5.3V
-- BD207 showing 5.3V
-- removing the cable between the main board and the power board turns on the backlight.
Pushing the power button on results in no change to any of the pins connecting the two boards.
- function assembly appears to be NO GOOD
-- there is no voltage showing on any of... -
Hey everyone - I have a Samsung UN58J5190 with these symptoms: Does not power on, has standby light, standby light blinks 5 times after pressing "power on." When plugged in the power supply is making a very faint ticking sound, and this goes away when pressing power on.
Following instructions from the great team here in recent posts for Samsung with similar symptoms, I did the following tests:
I tested with mainboard disconnected from power supply - backlights do not come on (symptoms no change/5 red blinks)
I tested with T-Con disconnected...
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