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I have a Sony KDL52W4100 I power it on the Sony logo lights up I get a lit black screen then the TV shuts off. The only way to try and power it on again is if I unplug the TV and plug it back in.

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This is due to the fault of its digital main board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/ In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary. Might be best to contact any service technician.

Posted on Dec 15, 2016

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Posted on Jan 02, 2017

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KDL-40s4100 power light on, black screen


Main PCB is bad . I just got the information from a Sony authorize servicer price for the part only $504.87

Nov 27, 2011 | Sony Bravia KDL-40S4100 40 in. LCD TV

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. Problem with Sony KDL52W4100 I've


Hello
You haven't specified anything about the picture condition of your Sony KDL52W4100. Will you please give me some more details about it. Do the vertical stripe moves acroos and washes out picture? Do you get well defined picture on the resr of the screen? As you know, this is an Email solution, and I've to get your Email address to post my solution. Sometimes, I may have to upload the service manual [schematic diagram]for your TV to get you more information about the fault, and the method for rectification. So, give me as much as details as you can. either give me your email iddress or send an Email to me at gopalan.gopakumar327@gmail.com. If I may have to upload the schematic diagram and service manual, I can't do it by this window, as this window does not allow me to uplaoad PDF files by it. I haven't placed my solution to your problem till yet. Get me the details I asked for, and help me to detect the actual fault with your tv. OK

Oct 24, 2011 | Sony KDL52W4100

1 Answer

I have a sony kds-r50xbr1 and the problem is that it takes about 1 min to turn on and the screen appears for a bout 1-2 sec and then shuts off to a black screen where the power/standby blinks continuously...


Its time to replace lamp in this tv because existing lamp has reached to end of its working life span and causing problem. If lamp got broken, you will see lamp light lit on tv front but weaker lamp cause above symptoms.
Lamp replacement procedure is easy and written in user manual.
Buy Sony original lamp for good and bright picture in tv.
Thanks.

Jul 23, 2010 | Sony KDS-R50XBR1 50" HDTV

1 Answer

Sony 46 inch XBR3


Since you have a lit power light, you are getting AC power.

Your set either has a blown internal fuse (or circuit breaker) or a power supply problem. If you can reset its breaker or replace its fuse, you may be able to fix it yourself. If not you need professional service.

Good luck! :)

Nov 15, 2007 | Sony KV-36XBR400 36" TV

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