Re: LCD TV won't turn on. LED keeps blinking
Also as mentioned some clear pictures of the white connectors on the top side of the board so we can see/read the writing by them
-
Re: LCD TV won't turn on. LED keeps blinking
undersideAttached FilesLeave a comment:
-
-
Re: LCD TV won't turn on. LED keeps blinking
No. Wait until you have replaced the fuse with the correct value and then take the measurements. However this does not stop you from posting clear sharp photo's of the underside of the power supply pcb.Leave a comment:
-
Re: LCD TV won't turn on. LED keeps blinking
without replacing the fuse can i get the voltage?Leave a comment:
-
Re: LCD TV won't turn on. LED keeps blinking
Yes the underside.Leave a comment:
-
Re: LCD TV won't turn on. LED keeps blinking
you mean underside of the power supply board?Leave a comment:
-
Re: LCD TV won't turn on. LED keeps blinking
Do you have a picture of the underside of the board so the IC can be identified.
Do you have any voltages at the connectors and if so can you give the pin numbers, pin names and voltages.Attached FilesLeave a comment:
-
-
Re: LCD TV won't turn on. LED keeps blinking
google image but the same boardAttached FilesLeave a comment:
-
-
Re: LCD TV won't turn on. LED keeps blinking
A fuse is for protection. Replacing it with a piece of wire is asking for more problems and can be dangerous.
The voltage across the capacitor should be close to 400V.
You need to post sharp photo's of your power supply because the ones supplied are poorly focused.Leave a comment:
-
Re: LCD TV won't turn on. LED keeps blinking
what voltage is in your country?Leave a comment:
-
Re: LCD TV won't turn on. LED keeps blinking
Why have you started two threads ? I will let DB and Vince help on this.Leave a comment:
-
Re: LCD TV won't turn on. LED keeps blinking
is that a problem, 325v in 450v capacitor?Leave a comment:
-
Re: LCD TV won't turn on. LED keeps blinking
what made the fuse blow did you short something whilst testing? if so you need to check for shorts before replacing the fuse.Leave a comment:
-
Re: LCD TV won't turn on. LED keeps blinking
now the fuse is gone. if i replace it with a wire is okay? or i have to replace it with a fuse?Leave a comment:
-
Re: LCD TV won't turn on. LED keeps blinking
What's the DC voltage between the two legs of the large 450V capacitor?Leave a comment:
-
Re: LCD TV won't turn on. LED keeps blinking
i put the board back to the tvAttached FilesLeave a comment:
-
-
Re: LCD TV won't turn on. LED keeps blinking
yes i can put the board back
and i have a multi meter
can you give me some minutes?Leave a comment:
-
Hi everyone,
I've got this LG TV here that wouldn't turn on and be stuck in a standby loop (blinking red once every other second).
Did test the following:
* LED's seem fine as they all light up using LED Tester
* Power Supply supplied around 111V for each LED Strips (2x edge lid strips)
* PWR_ON would be at around 3V but dropping every other second (just like the standby light)
* DRV_ON is doing the same
* power supply has a green LED onboard, but that doesn't seem to do anything (stays off the whole time).
* there is a tiny clicking... -
Hi there,
I have this ASUS X453MA Laptop that's not turning on. When I plug in the charger, the green light just keeps on blinking and pressing the power button does nothing.
I have checked the charger and it is giving 19+ V
I have disconnected the battery and pressed power button for 30 seconds.
I tried another RAM stick.
Tried disconnecting the keyboard and touchpad.
Tried disconnecting the HDD and the wifi adapter.
The problem persists.
Hope you could help me out on this one. Thank you.12-14-2024, 06:40 AM -
Hello, i have some issues with my laptop Lenovo Y700-17ISK (motherboard BY511 NM-A541), it started when i turn on the laptop, but the lcd wont turn on, i then connected it via hdmi to tv and screen was ok. So i thought maybe lcd stripe is faulty, i removed the bottom cover, disconnected main battery, reset the cmos by disconnecting battery for 1 min, then slighty move the lcd stripe. Conncted power supply and tuned on my laptop, the lcd turn on, it started to load os, then it turn off, after a second it turn on, then after like 3 seconds turn off again, and so on. Removed power supply, waited... -
Hello
I was looking for a schematic or board view but unfortunately I didn't find anything.
By connecting the drain and source of pq58, the device turns on and works perfectly, but the battery doesn't charge, and I don't know the path of the circuit to the MOSFET.
Is the problem with the adapter? Or is there a problem with the MOSFET activation circuit?
Please guide me.
Thank you. -
To all the members here...
Let me tell you a little bit about what happened to my laptop (MSI GF63 THIN 11UCX model: MS-16R6) that “maybe” you know how to solve this problem.
So before this problem happened, my laptop was running smoothly. When I wanted to restart my laptop, it looked fine at first. But after I waited for this restart process to take a long time, until finally I panicked (because the restart process did not finish plus the laptop screen only showed a black screen), I immediately pressed and held the power button to force the laptop to turn off. But...
Leave a comment: