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I get the rapid blinking power LED no button functions. Can you read a number on the 16 pin back light controller? Bad caps are still plaguing things inI have the same Samsung b, same problem I learn quickly but I was following this thread from the start and i replaced the caps. Originally Posted by alexanna Post I am unable to find a data sheet on the controller; if a data sheet could be located it should be very easy.
Im not very good in electronic to track it to the controller. Okay so I got the pictures. Page 3 of 4. Well, looks like Last Chance Saloon,before the Backlights become the Main suspects,so I would resolder the Inverter transformers,and all other joints between the secondary and the Lamp sockets,eg the small Blue Caps etc etc.
I see the image so something is working right.
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However now the LCD works but the backlight still does bir3195g. Attached are pictures from after the 3 caps were replaced. Okay So I am a newbie.
Changing all caps on the power board, except the big one, fixed it. Where else to look? Would the incorrect voltage contribute to this, or is my ccfl likely burned out as well? The backlights come on and the screen is white. Check to see if it’s open. I think I found the fuse under a glob of rubber stuff. Here’s the BOM from mouser. Can we clear and focused picture of YOUR boards?
As for the backlight, on some of these boards, a fuse F was used for the inverter section. Problem is that datsaheet arent working at all. Also try to get the resolution as close to x as possible.
With the advice of gdement I replaced the bad caps of my Samsung b dattasheet it now works flawlessly! Bright as daylight and stable too. Dattasheet upon turning it on were no reaction but the rapidly blinking led as well. Got to repair a bf a few days ago. I will check again for the fuse, I tried to look in that area but could not see the code f, however that section had a lot of glue on it, so I’ll look closer.
I figured out what I didn’t do change three more of the caps and it’s up and running like a new monitor once again. It’s a small 3A fuse that’s green in color probably mounted near the caps you just replaced.
Originally Posted by Logicsays Post The image is viewable with a flash light. Show 40 post s from this thread on one page.
I didn’t check that they exactly matched the old ones. Thanks for yor effort helping me. Replaced picofuse with litle wire. Check for proper voltages at the inverter.
I have a samsung b. Thanks again badcaps forum! Maybe, but measure the resistance of the secondaries of both of the Inverter transformers, they should be very very similar measurements. I’m going to check it out and see if its tests good. Ok thanks all for the feedback. I had a similar problem with my Samsung B as well.
You can see picture datashee still no backlight. I did the whole power on and check with a flash light. I am unable to find a data sheet on the controller; if a data sheet could be located it should be very easy.
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Well, I’m no expert on electronics. Power light is on. Can we get clear and focused picture of YOUR boards? I have Samsung BF and have problem with backlight. I replaced all caps and picofuse but still no backlight.