Hi, briefly for a purchase advice i would like to know from experts if recent LG still suffers processor soldering problem, like almost every LG led tv i know. Thanks.
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Re: Not a repair, only a purchase advice ask for
Some incomplete info I know of LG TVs.
Bag BGA or processor:
LG series from 2009
LD some models
LV
LM
UF higher end models
Horrible panel:
F
J
H
Bad Backlights:
F
J
H
The whole F, J and H series are a fiasco, backlight that turns blue over time, and panel dies like flies, develops horizontal lines or flickering.
Seems that from UM series forward LGs have been solid, at least compared to Samsung, their NU series have terrible backlights. RU, TU and expensive QLEDs have been having panel problems. I haven't seen any LG UM models or newer with any fault for sale around here.
Easy to figure out when you search the motherboard for a select model and check the price, usually if it has bad BGA there will be listings offering to "repair" the board, and a working one will cost at least 70% of what the TV is worth. -
Re: Not a repair, only a purchase advice ask for
thanks, which of them are now on the market?Comment
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Re: Not a repair, only a purchase advice ask for
being sold new?
LB 2014 < backlight problems
UJ 2015
UH 2016
UJ 2017
UK 2018
UM 2019
UN 2020
UP 2021, being produced and sold for now.
For Nanocell I'll use a single model as example:
SJ8500 2017
SK8000 2018
SM8600 2019
NANO85 2020 - NANO86 in some countries
NANO85 2021
The "U" is for ultra HD (4k), for 1080p/768p LG uses "L" prefix, like LF or LJ
Bottom tier LED TVs have reached stagnation, there's nothing new since 2017, same peak brightness, panel types vary from manufacturer, lg 55 inch is IPS or ADS, they're similar, some 60 inch models uses VA.
Even high tier, most of them are 4k 120Hz, the only difference between them is having a higher peak brightness with mini-led or 8k panel, which has no use right now.Last edited by Biruslapio; 04-13-2022, 04:52 PM.Comment
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Hello all,
I'm looking for some help with an ASUS ProArt Display PA278CV that's no longer working after a lightning strike. The graphics card connected to it also failed, which points to some sort of surge.
The monitor powers up and the on-screen display (OSD) menu works perfectly fine. However, it displays a "No Signal" message regardless of whether I use the HDMI or DisplayPort inputs. Since the menu system is functional, I suspect the issue is with the input circuitry rather than the main power supply or the display panel itself. I've already tested the power... -
Hi all,
I've had trouble with the power on this device since I got it. It always shut down with no warning and would often fail to power up. Dell's advice has been to disconnect the power and battery, wait, then reconnect and boot. Letting the battery run down completely also helped. I had them come out at one point and they said they replaced the board. This helped for a while but then it just stopped powering on. At this point it's well out of warranty. I missed the chance to get them to come out again because life. Current situation is it shows zero signs of life with both barrel... -
Hi all. I need to replace an SMD fuse on my camcorder and this is the first time I have had to do any SMD soldering so your advice would be appreciated. Below is a picture of the board that I am working on and I have highlighted the fuse that needs to be replaced. I managed to zoom in to take this picture but the fuse is really tiny and is sandwiched between other components so this is going to be a new milestone for me. I appreciate that I am going to have to buy a new soldering iron if you could advice on what I need please. I was thinking about putting a big soldering iron across the whole... -
My reference only: TT10141.
Problem: I need to purchase a mosfet chip from board 820-02100 M1 Pro, that is supposed to be Q5820 but according to Digikey, the schematic diagram I sent them, neither are relevant to the actual mosfet specification I sent them. I just basically need to find this mosfet to purchase, I cannot find it anywhere and am hoping someone could point me in the right direction without have to purchase this entire allusive board. Already checked with Digikey, Mouser, Aliexpress, eBay. Any suggestions?
Mosfet specs are as follows:
Chip markings:... -
I’d appreciate some very basic advice on CH341x programmers. I know this topic comes up from time to time, but stuff changes, so I hope a refresh is in order. In particular, I see some unexpected things happening with jumper positions.
[My plan is to learn to read and write 24CO2 EEPROMs via I2C. The first target is the one in my Uni-T clamp meter, but before tackling that I have some brand-new EEPROMs to practice on.]
I have two basic Chinese programmers. One is the blue board with a CH341A and two rows of pin headers. To my untrained eye it looks like all the others....
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