Fixing a Sony Bravia KDL-32V2500 with a 4 Flashing Error Code

Background

So I was lucky enough to be given a free Sony Bravia (KDL-32V2500) by a colleague who was emigrating to America but it was not working and was out of warranty. It would turn on and display a picture for a second then turn off and show a 4 flashing/blinking error code.

He had done some research into it as he was considering fixing it himself and thought it might be the inverter board that was the problem. After doing some research myself (…just so you know I’m no TV mechanic!), I came to the same conclusion but it was not easy to diagnose the problem, Sony heavily guard their blinking code diagnostics so it was difficult to pinpoint the actual reason for the 4 flashing error code.

I could not find a solution for this error on this model but for some other models people were suggesting that it was the inverter board and knowing that the codes are different for some models I thought I’d take the risk.

I managed to source a new inverter board from FlatTVParts for £18 inc P&P (after discounts). Their basic delivery was 2-3 days so I eagerly awaited the part. I fitted the new inverter board and hey presto it worked! I took a few photo’s as I replaced the board because if it did work I wanted to share my knowledge in the hope that it will help someone!

So here is a quick guide to replacing the inverter board.

Guide

WARNING: Remember to unplug your TV from the mains before you open it up! And be careful, it is possible to further damage your TV by taking it apart. I am not responsible for any damage caused, be that to yourself, the TV or anything else! Do this at your own risk!

Step 1: Remove the Back Panel

There are 14 screws that need removed so that we can remove the back panel.

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lick the image to enlarge.

Step 2: Remove the Power Supply

First unplug the 3 cables on the board, then there are 4 screws that need removed, once they are removed there are 3 clips that need popped out of the way and the board can be removed and carefully placed out of the way.

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Click the image to enlarge.

Step 3: Remove the Power Supply Bracket

There are 2 screws that need to be removed so we can remove the bracket, there are also a few wires that are held in place on the bracket, these can be unclipped.

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Click the image to enlarge.

Step 4: Remove the Inverter Shield

There are 5 screws that need to be removed to remove the metal shield over the inverter, I used a precision screwdriver for this but a small one would probably do the trick.

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Click the image to enlarge.

Step 5: Replace the Inverter Board

Finally remove the cables attached, then one last screw needs to be removed to remove the inverter board.

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Click the image to enlarge.

Step 6: Put it Back Together

Now insert the new inverter board and work backwards through the steps to put it all back together. Plug it in and test it’s working.

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I had no use for the TV myself as I already have one of a similar calibre, so I surprised my in-laws with a new TV (to replace their old one that must have been at least 10 years old and weighed a ton!!). I had it all set-up and ready to go on their return from holiday! Needless to say they were pleasantly surprised when they got home!

Good luck and hope this helps at least one person!

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