KDL-40X4500 and KDL-46X4500 Issues

[shimeng]

Hi Everyone,

I have a Sony KDL-40X4500 and KDL-46X4500 that were in perfect working condition when I last stowed them away (approximately 1 and 2 years ago respectively).

The issue with the larger TV is that it won't power on - there's no audio, no video, no clicking noise. Just the green power LED blinking every 3 seconds indefinitely.

The smaller TV exhibits very different symptoms. Hitting the power button results in an audible click with the green power LED turning on, but then a second later the unit turns itself off.

I have tried a factory reset (holding Up on remote, pushing the power button on the TV) and cycling power (disconnecting power, waiting 5 minutes, reconnecting power) but both don't seem to work.

I suspected that the smaller TV was having issues with power so I took out the G6 board for a closer look but none of the capacitors seem to be bulging/leaking and none of the ICs appear to be burnt. There was no apparent damage on the adjacent D4 board either.'

Any ideas, anyone?

Caveat: I am not by any stretch a "techie"; I can assemble and water cool a PC but am generally clumsy with a soldering iron. Please be patient!

[sordids999]

Re: KDL-40X4500 and KDL-46X4500 Issues

Posting pictures of the back of your tv showing the boards with clear pictures may help you more with fixing your problem

[Diah]

Re: KDL-40X4500 and KDL-46X4500 Issues

Hi Everyone,

I have a Sony KDL-40X4500 and KDL-46X4500 that were in perfect working condition when I last stowed them away (approximately 1 and 2 years ago respectively).

due above yours post and yours country location as shown here on your Profile, both of yours set could be effected with bad soldering as yours humanity very high and long term of storage. . one tips it could help you, that never clean the boards from both side before you inspect them with magnifier all points even SMD parts if any had brown oxide color need to heat the point with soldering iron. after you get this done then clean all boards with at least 95% alcohol,

[peter1987 djuh]

Re: KDL-40X4500 and KDL-46X4500 Issues

this problem could be a bad inverter boards

[shimeng]

Re: KDL-40X4500 and KDL-46X4500 Issues

I attempted to power on the smaller 40" TV yesterday and it suddenly started working!

This was after I pulled the G6 board out (to take pictures), reconnecting it and cleaning the dust off.

I initially panicked when I wasn't getting audio/video after hooking it up to my Bluray player but it turned out the HDMI cable was faulty.

I didn't have time to pull the boards off the larger TV for pics, but will do that when I get home after work. I did manage to get the service manual though.

[shimeng]

Re: KDL-40X4500 and KDL-46X4500 Issues

I took a picture of the front and back of the 46" TV G6 board.



It's been a long day, so I only took a photo of the top of the GL board.