55EC930V - ZA Clicking Sound only

[alltvrepairs]

Hi,

I have this OLED in standby. With remote or local button it tries to start, relay clicks but switches off again immediately. I have noticed 24V dc out missing . But this was due to a missing signal from the mainboard at DRV-ON signal. If I apply 3.5 volts 24v is on but same result. Have disconnected TCON cables one by one but still same issue.
Is there any mainboard reset procedure or testing please as am new to this model.
Tks!

[Davi.p]

On main board picture, top of the processor there is a small sot23-6 ic, how it is marked? Is it a reset ic?

[alltvrepairs]

On main board picture, top of the processor there is a small sot23-6 ic, how it is marked? Is it a reset ic?

Hi,
I have uploaded some closeups. The only Sot23-6 IC is marked as HS5NG ic6200. In other posts there are mentions of micro switches on the main board for this model but I cannot find in mine.

There is a very informative thread here https://www.badcaps.net/forum/troubl...wer-no-display

Should try the In-Stop trick next.

Any suggestions more than welcome!

[Davi.p]

No, it was only a misview, them was only white markings, anyway my doubt was on the standby microprocessor, i wonder why the board picture is 3000x4000 but so very low detail, i cannot name the ic position.. if it is sold already programmed, i would do a try..

[Diah]

There is a very informative thread here https://www.badcaps.net/forum/troubl...wer-no-display

Should try the In-Stop trick next.

Any suggestions more than welcome!

do all steps at the links threat you found..
Davi.p : stop harming users when you never had or saw OLED TV.. as the other one you fucked it with micro switch..

[Davi.p]

Don't say stop to me, try to solve some case , i see no cases sol ed by YOU

OP, yes you can have a problem like the the other thread, good luck, if screen is the problem, i see it hard..

[Diah]

Don't say stop anytime, you have nothing to stop others , put a good plug of cork in mouth.

of course i will write always STOP--- cause you didn't answer on the other Parts of comments... "" you never had or saw OLED TV.. as the other one you fucked it with micro switch"" so where i should put the plug at you---- you choose.. front or back doesn't matter for you or !! ASS***LL

[alltvrepairs]

Hi,
i have tried the In-Stop and In-Start with LG service remote. However the tv screen never switches on. The remote power button works fine and tv responds to the power commands but relays clicks off again after 3 seconds. The optical out red laser never switches on. Usually this indicates main board has powered up.

Also have read about the microswitches but i haven't found any in my main board.

Any other tips before giving up please?
Tks !

[Diah]

since you have Service remote... did you try P-ONLY (power only) all cable should be in place, keep attention on the screen if it show some things disrupted

[alltvrepairs]

since you have Service remote... did you try P-ONLY (power only) all cable should be in place, keep attention on the screen if it show some things disrupted

Hi again,

With the P-ON from remote the screen is lit for a few seconds but a vertical line only is visible. It will eventually go to standby again after around 3 seconds. I have removed Ribbons to screen 1 by 1 maybe I can get the LG logo somehow but didn't manage. Then I put back all connectors and removed the TCON signal cable and P_ON again and the same line was shown. I have checked the TCON for some burns or open fuses but all seemed good.

I am inclined to reason a defective panel but has seen wonders in this forum so fingers crossed there are some other procedures I can perform.

Regards