Overclock.net › Forums › Consumer Electronics › HDTV › How to fix LCD TV flickering
New Posts  All Forums:Forum Nav:

How to fix LCD TV flickering

post #1 of 37
Thread Starter 

My Sony KDL-46W4100 is flickering, as seen in this video:

As you can see, the left side flickers and the center has a dark column, although the right side is fine. Any ideas on how to fix this? Thanks for any help.


Edited by TH3_H4NGMAN - 3/7/12 at 12:21pm
Current Rig
(13 items)
 
  
CPUMotherboardGraphicsRAM
Athlon II X4 635 @ 3.2 1.275V Gigabyte MA785GM-US2H MSI NX8800GT 735/1000 2x1GB,2x512MB OEM DDR2 
Hard DriveOptical DriveOSMonitor
2xWD Caviar Black 320GB RAID 0 Samsung IDE Win7 Ultimate X86 HP W2007+Acer AL2216W 
KeyboardPowerCaseMouse
G11 Antec Basiq 550W HAF 912 G5 
Mouse Pad
Walmart Special 
  hide details  
Reply
Current Rig
(13 items)
 
  
CPUMotherboardGraphicsRAM
Athlon II X4 635 @ 3.2 1.275V Gigabyte MA785GM-US2H MSI NX8800GT 735/1000 2x1GB,2x512MB OEM DDR2 
Hard DriveOptical DriveOSMonitor
2xWD Caviar Black 320GB RAID 0 Samsung IDE Win7 Ultimate X86 HP W2007+Acer AL2216W 
KeyboardPowerCaseMouse
G11 Antec Basiq 550W HAF 912 G5 
Mouse Pad
Walmart Special 
  hide details  
Reply
post #2 of 37
Does it do this will all inputs?
post #3 of 37

Wonder if something died in it. If you crack it open I'd look for blown caps and in general blown/burnt bits inside.

 

Check this out for a walk through on blown caps and how to fix them. Clicky for the Sticky

post #4 of 37
Thread Starter 
Quote:
Originally Posted by Nick2253 View Post

Does it do this will all inputs?

Yeah. I tried it with VGA and Component and still flickers.
Quote:
Originally Posted by animal0307 View Post

Wonder if something died in it. If you crack it open I'd look for blown caps and in general blown/burnt bits inside.

Check this out for a walk through on blown caps and how to fix them. Clicky for the Sticky

I'll crack open the back and take a look. Thanks for the link. I'll report back with my findings.
Current Rig
(13 items)
 
  
CPUMotherboardGraphicsRAM
Athlon II X4 635 @ 3.2 1.275V Gigabyte MA785GM-US2H MSI NX8800GT 735/1000 2x1GB,2x512MB OEM DDR2 
Hard DriveOptical DriveOSMonitor
2xWD Caviar Black 320GB RAID 0 Samsung IDE Win7 Ultimate X86 HP W2007+Acer AL2216W 
KeyboardPowerCaseMouse
G11 Antec Basiq 550W HAF 912 G5 
Mouse Pad
Walmart Special 
  hide details  
Reply
Current Rig
(13 items)
 
  
CPUMotherboardGraphicsRAM
Athlon II X4 635 @ 3.2 1.275V Gigabyte MA785GM-US2H MSI NX8800GT 735/1000 2x1GB,2x512MB OEM DDR2 
Hard DriveOptical DriveOSMonitor
2xWD Caviar Black 320GB RAID 0 Samsung IDE Win7 Ultimate X86 HP W2007+Acer AL2216W 
KeyboardPowerCaseMouse
G11 Antec Basiq 550W HAF 912 G5 
Mouse Pad
Walmart Special 
  hide details  
Reply
post #5 of 37
Thread Starter 
I took off the back and saw this
400

I'm not sure if I need to take off that silver metal to get to the caps or what. From what I could tell, this is the only thing I could see that looked like a bad cap
400

Thoughts?
Current Rig
(13 items)
 
  
CPUMotherboardGraphicsRAM
Athlon II X4 635 @ 3.2 1.275V Gigabyte MA785GM-US2H MSI NX8800GT 735/1000 2x1GB,2x512MB OEM DDR2 
Hard DriveOptical DriveOSMonitor
2xWD Caviar Black 320GB RAID 0 Samsung IDE Win7 Ultimate X86 HP W2007+Acer AL2216W 
KeyboardPowerCaseMouse
G11 Antec Basiq 550W HAF 912 G5 
Mouse Pad
Walmart Special 
  hide details  
Reply
Current Rig
(13 items)
 
  
CPUMotherboardGraphicsRAM
Athlon II X4 635 @ 3.2 1.275V Gigabyte MA785GM-US2H MSI NX8800GT 735/1000 2x1GB,2x512MB OEM DDR2 
Hard DriveOptical DriveOSMonitor
2xWD Caviar Black 320GB RAID 0 Samsung IDE Win7 Ultimate X86 HP W2007+Acer AL2216W 
KeyboardPowerCaseMouse
G11 Antec Basiq 550W HAF 912 G5 
Mouse Pad
Walmart Special 
  hide details  
Reply
post #6 of 37
For future reference, here is the service manual for your TV. It doesn't have your answer, but I thought you might like to have it:

http://www.electronica-pt.com/index.php/component/option,com_remository/Itemid,34/func,startdown/id,8438/

EDIT: As far as your situation is concerned, I think you have a leaking capacitor on your hands. At the very least, it's really cheap to replace a film capacitor (which is what that is. Either Capacitor C6552 or C6550 in the service manual, I can't tell which one is leaking).
Edited by Nick2253 - 3/8/12 at 2:15pm
post #7 of 37
Thread Starter 
Quote:
Originally Posted by Nick2253 View Post

For future reference, here is the service manual for your TV. It doesn't have your answer, but I thought you might like to have it:
http://www.electronica-pt.com/index.php/component/option,com_remository/Itemid,34/func,startdown/id,8438/
EDIT: As far as your situation is concerned, I think you have a leaking capacitor on your hands. At the very least, it's really cheap to replace a film capacitor (which is what that is. Either Capacitor C6552 or C6550 in the service manual, I can't tell which one is leaking).

I checked that link out and it is very helpful for disassembly. I believe that guide is telling me I do not need to remove all the silver metal. As for the capacitors, is that black stuff around those two capacitors definitely a leak? There is another glob of the same stuff a few inches to the right of it
700
Current Rig
(13 items)
 
  
CPUMotherboardGraphicsRAM
Athlon II X4 635 @ 3.2 1.275V Gigabyte MA785GM-US2H MSI NX8800GT 735/1000 2x1GB,2x512MB OEM DDR2 
Hard DriveOptical DriveOSMonitor
2xWD Caviar Black 320GB RAID 0 Samsung IDE Win7 Ultimate X86 HP W2007+Acer AL2216W 
KeyboardPowerCaseMouse
G11 Antec Basiq 550W HAF 912 G5 
Mouse Pad
Walmart Special 
  hide details  
Reply
Current Rig
(13 items)
 
  
CPUMotherboardGraphicsRAM
Athlon II X4 635 @ 3.2 1.275V Gigabyte MA785GM-US2H MSI NX8800GT 735/1000 2x1GB,2x512MB OEM DDR2 
Hard DriveOptical DriveOSMonitor
2xWD Caviar Black 320GB RAID 0 Samsung IDE Win7 Ultimate X86 HP W2007+Acer AL2216W 
KeyboardPowerCaseMouse
G11 Antec Basiq 550W HAF 912 G5 
Mouse Pad
Walmart Special 
  hide details  
Reply
post #8 of 37

What silver metal are you talking about? Can you get some better pictures of that black stuff? I don't think that's a cap, Some times manufactures use a silicone like paste to keep components from vibrating.

 

Also could you take a picture of each PCB, Higher res/clarity the better.

post #9 of 37

Googled your tv model and came up with this.    (MediaFire downloadable PDF)   Your TV is on the list under the 2008 US Models. (Thread that lead me to)

 

I did not read this, I skimmed it through it looking at the pictures and looks like something that may help.

 

 

Edit: That other PDF Nick linked to is ridiculous, It has complete break down of the TV.

 

And sorry for the double post.

 

 

Edit 2: And so I don't triple post. May want to check out the AVSForum and ask your question there.

 

Hope anything I've posted comes in handy, Good luck with your TV.


Edited by animal0307 - 3/8/12 at 2:53pm
post #10 of 37
Thread Starter 
Quote:
Originally Posted by animal0307 View Post

What silver metal are you talking about? Can you get some better pictures of that black stuff? I don't think that's a cap, Some times manufactures use a silicone like paste to keep components from vibrating.

Also could you take a picture of each PCB, Higher res/clarity the better.

The silver metal I'm referring to is the metal to which the PCBs are bolted to. Do I need to remove it? As for pics, here you go:
Big PCB
1200
Smaller PCB
1200
First black glob
1200
Second black glob
1200

These pictures are as close as I can get without a macro lens. Sorry if this picture size is a problem for anyone; I was just uploading them in a higher res as asked.
Current Rig
(13 items)
 
  
CPUMotherboardGraphicsRAM
Athlon II X4 635 @ 3.2 1.275V Gigabyte MA785GM-US2H MSI NX8800GT 735/1000 2x1GB,2x512MB OEM DDR2 
Hard DriveOptical DriveOSMonitor
2xWD Caviar Black 320GB RAID 0 Samsung IDE Win7 Ultimate X86 HP W2007+Acer AL2216W 
KeyboardPowerCaseMouse
G11 Antec Basiq 550W HAF 912 G5 
Mouse Pad
Walmart Special 
  hide details  
Reply
Current Rig
(13 items)
 
  
CPUMotherboardGraphicsRAM
Athlon II X4 635 @ 3.2 1.275V Gigabyte MA785GM-US2H MSI NX8800GT 735/1000 2x1GB,2x512MB OEM DDR2 
Hard DriveOptical DriveOSMonitor
2xWD Caviar Black 320GB RAID 0 Samsung IDE Win7 Ultimate X86 HP W2007+Acer AL2216W 
KeyboardPowerCaseMouse
G11 Antec Basiq 550W HAF 912 G5 
Mouse Pad
Walmart Special 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: HDTV
Overclock.net › Forums › Consumer Electronics › HDTV › How to fix LCD TV flickering