LG 43UF640V half picture

[Davi.p]

Re: LG 43UF640V half picture

If there aren't 8 pin IC's on the bottom side i ask you tell me the marking of IC6000 and IC101 (as far as i can see from a not well illuminated area)..

No Diif, that is not to touch, is the Flash eeprom for the standby software..

[london-freddie]

Re: LG 43UF640V half picture

IC6000 Markings
4580M
-E1
511TA3



IC101
A TMLH534
2EC L B
A3DRMA

if that helps

[Davi.p]

Re: LG 43UF640V half picture

"2EC" is 256kbits so it's surely IC101..

[london-freddie]

Re: LG 43UF640V half picture

is it still pins 5 and 6 to reset

[Davi.p]

Re: LG 43UF640V half picture

eeprom chip are always the same, 5,6 pins (sda,scl)

[london-freddie]

Re: LG 43UF640V half picture

will try now, thanks

[london-freddie]

Re: LG 43UF640V half picture

ok tried the eeprom reset, no change, still can not get into any settings etc

[Davi.p]

Re: LG 43UF640V half picture

Do you see the tv channels, as before? If yes the reset job is not done well or is not available for this eeprom...

[london-freddie]

Re: LG 43UF640V half picture

yes still got tv channels as before

[Davi.p]

Re: LG 43UF640V half picture

If you want you can buy another eeprom, equal or not equal, is enough it is a 256kbit.. and change it so the tv will reset itself.. LG also often suffer from bad cpu or bad cpu soldering, so you can try reflow it even if probably it will work for too few hours...

[london-freddie]

Re: LG 43UF640V half picture

just tried resetting IC101 again pins 5 and 6, now got a screen like this ????

[london-freddie]

Re: LG 43UF640V half picture

still no remote functions apart from on/off, volume up/down, and channel change, no source or settings

[Davi.p]

Re: LG 43UF640V half picture

LG logo at the boot up Is it correct? The audio of channels is present? How do you found the pins 5,6?

[london-freddie]

Re: LG 43UF640V half picture

never had logo at start up,
audio is there
pins are numbered

[diif]

Re: LG 43UF640V half picture

Faulty EEPROM maybe ? https://www.ebay.co.uk/itm/5-PCS-of-...0/253307214015

[Davi.p]

Re: LG 43UF640V half picture

my message got lost, i will rewrite next..

[london-freddie]

Re: LG 43UF640V half picture

tried eeprom reset again pins 5 and 6, now lost sound and picture, still no remote functions except power on and off
looks like i need a mainboard

[Davi.p]

Re: LG 43UF640V half picture

The reset on pin 5,6 is a safe operation, many times tested and never problems, sometimes works sometimes not, depends on eeprom type. On the tv Italian forum i have read yesterday of one of the various LG defects related to mainboard, the user cooked the board in the oven for 5 mins at 180 Celsius degrees and now is 1 week that works, he have cooked another on LG mainb. 1 year ago and it is still working.. It has to be removed all the soft plastic parts that melts..

[london-freddie]

Re: LG 43UF640V half picture

have baked mainboards before, laptops, not wanting to put this one in the oven, maybe as a last resort, do you think maybe try a new eeprom ??

[vinceroger69]

Re: LG 43UF640V half picture

if you dont fancy trying the oven reflow method until you have ruled a eeprom issue out, maybe try heating the cpu/main ic up with a hair dryer for a good few minutes see if that changes anything.