LG 43UF640V half picture

[london-freddie]

Re: LG 43UF640V half picture

will get a remote for it, and take it from there, ie changing source, reset and update etc

[budwich]

Re: LG 43UF640V half picture

Not tried any other inputs I just tried ps4 via hdmi but tv is not switching to hdmi so looks like I need a remote to change source, tried several lg remotes I have but none working this tv, (except for power on off), looks like I will have to get a remote for this tv to change its source

a quick look at the manual appears to indicate you just need an app to control the set.

[vinceroger69]

Re: LG 43UF640V half picture

This may work
https://play.google.com/store/apps/d...eapps&hl=en_GB

[Davi.p]

Re: LG 43UF640V half picture

The tint evindently depends on the picture content..

[budwich]

Re: LG 43UF640V half picture

:-( guess your "friend" didn't have enough money to give away the remote... :-)

have tried reloading the firmware?

[london-freddie]

Re: LG 43UF640V half picture

Not tried any other inputs I just tried ps4 via hdmi but tv is not switching to hdmi so looks like I need a remote to change source, tried several lg remotes I have but none working this tv, (except for power on off), looks like I will have to get a remote for this tv to change its source

[budwich]

Re: LG 43UF640V half picture

what other source have you tried?

[london-freddie]

Re: LG 43UF640V half picture

just took this pictures over a period of three or four minutes, each one was taken on powering up the tv, switching off and powering up again each time a diffent tint on the bad side of the screen

[london-freddie]

Re: LG 43UF640V half picture

will try later to connect from hdmi, may be awkward as i do not have a remote for this tv, dont want to buy one if i can not get the tv working, unless i have to

[budwich]

Re: LG 43UF640V half picture

You need to try other inputs and signal types.

[london-freddie]

Re: LG 43UF640V half picture

Input was with aeriel, have found each time tv boots up the bad half of screen has a tint, sometimes green, sometimes purple etc, occasionaly but not often bad half of picture is near perfect, but not perfect

[budwich]

Re: LG 43UF640V half picture

OP, you got a good picture then it disappeared... wth!!!! :-(
I would say you are close then. One question, when the picture happened to be good, what was the input?

[london-freddie]

Re: LG 43UF640V half picture

thanks for that daz

[daz2206]

Re: LG 43UF640V half picture

please let me know daz if the mainboard change fixes it

yes mate i will do and il hang onto this mainboard in case you need it

[london-freddie]

Re: LG 43UF640V half picture

please let me know daz if the mainboard change fixes it

[daz2206]

Re: LG 43UF640V half picture

There are no BGA on the tcon..
"(ive got hundreds of broken screen tv's)"
Wow... where do you take them??

i buy them all up locally for pennies and strip them for the parts which i use to help me work out whats wrong with faulty tv's (im quite new to repairing tv's)

[london-freddie]

Re: LG 43UF640V half picture

thanks for that daz2206, maybe the screen panel but hoping not, seems strange how i am getting different levels of the fault using different tcon boards, all boards have the same fault of the picture split but one board it is watchable
have since found that when i switch the tv on the bad side of the screen starts up with different tints to the picture, sometimes green, sometimes purple, sometimes blue, and sometimes near perfect picture but still split

[Davi.p]

Re: LG 43UF640V half picture

There are no BGA on the tcon..
"(ive got hundreds of broken screen tv's)"
Wow... where do you take them??

[daz2206]

Re: LG 43UF640V half picture

ive got the exact same fault with an lg 60uf770v, ive swapped all lvds cables and tcon with no difference at all, ive just found a mainboard so il let you know if that fixes it, also i have all parts for your tv from a broken screen tv if you need to borrow any parts to try (ive got hundreds of broken screen tv's)

[freakaftr8]

Re: LG 43UF640V half picture

Only thought with regard to heat and freezing is a bad BGA soldering on board. Grab a can of freeeze spray and try to pin point the location on the board that seems to make the picture get better. The freezer trick is isolating the whole board as a whole but what you need to do is find out in which location this trick is working.