Re: SMD Marking L8J0F



its from a samsung board model number: BN41-02568, can find any schematic diagram of this board. Hope someone can share......

Hi,

do anyone knows the value of this SMD components: marking L8J0F?

Thank you,

Mike...

Re: Oled55C7P Partial Screen Flickering

Just to give update on this case. I managed to solve the flickering issue upon reheating and resolder all the TCON components. But the panel already have an issue, specially when the left side heats up. A burn mark is showing when the temp is reaching more than 36degrees. Tried putting a Fan to cool down the panel also clears up the burned mark. The panel needs 35degrees below or else a burn mark will shows up....

Re: Oled55C7P Partial Screen Flickering

thank you for the reply, will do the stand-alone panel test and update. This is my first time to do that, i have hesitation at first. My reference now is from Oled55-65B6P, thou they have the same TCON. I really need to give it a try to finally conclude if this is a Panel issue. It's the VCC 3.3 to R8172(leftside) without any LVDS attached(if I understand it correctly).

Hi to all,

I've been scratching my head for several days on this Oled issue with only 3/4 of the screen is flickering and will turn off due to Burned Panel protection. The Service Menu shows an Instart log of an Inverter Error. I've manage to bypass the Protection circuit to further analyze and find the cause of the Inverter error and found that its the VGH_E on the right side of the TCON(CN14) is causing the Inverter Error. Tried to block that VGH_E but the screen flickering was just reduced to only 1/4 side of the screen. All voltage check are normal on the TCON side.
...

Re: Samsung LA32R81B Washout pictures

Hi tom,

You are right that the problem was in the t-con, using a x10 magnification lens I found a cold solder around the as15g chip. This was the cause of washout picture at cold start.

Thank you for pointing out where to start troubleshoting this problem. Its now ok after resoldering the cold areas.

Tnx,

Mike

Re: Samsung LA32R81B Washout pictures

Hi Tom,

I've tried reseting it to factory settings via Service Mode, but still the problem persists. It seems that when the TV get's hotter the pictures went back to normal, but when you powered off the TV for 30mins the problem goes back again.

Tnx,

Mike

Hi,

I've got problem with my samsung LCD with model number LA32R81B, Its now having a washout pictures when powered on and normalized after 2 minutes. Tried to check everything on its power supply (even change all capacitors)and found no faults on it. Please refer to link below for the clearer view of the problem.

[url]http://i1210.photobucket.com/albums/cc402/mikecarel/20130627_205034.jpg[/url]

Hope someone clearly guide me to identify the root cause of this problem.

Tnx,

MikeHi,

I've got problem with my

Re: New Members - please post your introductions here

Hi, guys hope this forum helps me in fixing electronics and computer hardware problem, been out of electronics repair for a while, but now its good to be back with the help of the guys here in this forum. Tnx