Sony Bravia No picture with blinking standby light - AVS Forum
Forum Jump: 
 
Thread Tools
post #1 of 4 Old 08-07-2011, 08:59 PM - Thread Starter
Newbie
 
slepthien's Avatar
 
Join Date: Aug 2011
Posts: 1
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
I have a Sony Bravia KDL 40W4100 that I believe the power supply is gone on. When plugged in it gives me a double blink on the standby light. Which it looks like it means I need a new powersupply. Is this correct? And if so where do I get one?
slepthien is offline  
Sponsored Links
Advertisement
 
post #2 of 4 Old 08-08-2011, 07:58 AM
AVS Special Member
 
mes444's Avatar
 
Join Date: Aug 2005
Location: N. Texas
Posts: 2,635
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 11
Could be the power supply or just the capacitors which you can replace if you can solder. Do some searches with the make and model + bad capacitors for more info.

Samsung has been replacing their defective power boards for free out of warranty, call Sony and see what their policy is.
mes444 is offline  
post #3 of 4 Old 08-08-2011, 11:23 AM
Senior Member
 
thiao's Avatar
 
Join Date: Jun 2011
Posts: 256
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 14
With a little knowledge in electronics and a multimeter, you can easily check out the power supply. Using the meter, verify that all the required voltages are present. See post #7 at:

http://www.avsforum.com/avs-vb/showt...ighlight=power

The voltage outputs are where the connectors attach and their levels should be silk screened on the circuit board.

I recently repaired 3 TVs, which in every case was a blown fuse in one the the low voltage circuits (50 cent item).

Since you did not mention otherwise, the above assumes you have no picture and audio.

If you have audio , but no picture.....more likely an issue with the 18 volt section of the power supply or the inverter board.
thiao is offline  
post #4 of 4 Old 08-08-2011, 02:44 PM
Member
 
SonyListens's Avatar
 
Join Date: Apr 2008
Posts: 121
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Liked: 15
Hey Slepthien,

My name is mike I work with the sonylistens team, I'm sorry to read of your trouble with your TV and want to help. Please call 800-222-7669 and explain what going on with the TV to them and they should be able to help. If that does not help please email your model and serial number to sonylistens@am.sony.com and we will have the TV evaluated and work towards resolving this issue asap.

Thanks,

Mike Puma
SonyListens is offline  
Reply LCD Flat Panel Displays



Forum Jump: 

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off