Question about Sony KDL40EX400 40 in. HD-Ready TV

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Unit powers off immediately

The unit powers up and shows the Sony logo and tune, then unit shuts back off.

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  • harvey Jan 25, 2013

    my tv does the same thing where it shows the sony logo then shuts down three times then stays shut down after it powers on an off three times

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Posted on Jan 02, 2017

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SOURCE: Sony VAIO PCV-RS320 PC Desktop Logo Sony VAIO PCV-RS320 PC Desktop will not stay on lpower comes on then shuts off

Well you have a bad power supply then and we have a contract with tigerdirect.We can get you a replacement for under $50.Visit us at
http://www.ezsystemrepairs.com/ .

Posted on Jul 04, 2012

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2 Answers

My phone has turned itself off,& won't turn back on, whether it is plugged in or not. Any idea why?


sounds like you need a new phone but id take it to a where ya bought it and see if a different battery fix's problem. ive had a battery that would discharge all its juice at random and had that burn up a motorola. hope this helps

Oct 26, 2012 | net10.com

1 Answer

Unit self powers down.


ok! maybe you have lost contact at the PCB you can re solder the PCB thats why the oscillation is not working.

Oct 01, 2007 | Sony FD Trinitron WEGA KV-34HS420 34" TV

1 Answer

Sony VAIO PCV-RS320 PC Desktop Logo Sony VAIO PCV-RS320 PC Desktop will not stay on lpower comes on then shuts off


Well you have a bad power supply then and we have a contract with tigerdirect.We can get you a replacement for under $50.Visit us at
http://www.ezsystemrepairs.com/ .

Jul 01, 2012 | Sony VAIO PCV-RS320 PC Desktop

1 Answer

Pressed power, heard the unit turn on, heard the tv show sound for a moment then it went into standby mode and the red light flashes six times, then pauses, six times then pauses, over and over and over. ...


Either your power supply is bad and needs replaced, or their is other circuitry issues. Bets to have a trained technician look at this and give you a quote for repair, it might be cheaper in the long run to replace the set.

Jan 18, 2011 | Sony FD Trinitron WEGA KV-30HS420 30" TV

1 Answer

Sony KDL40EX500 shuts down and flashes a red LED 7 times. What does this mean?


This is a issue with the power supply board here is a link that shows you what this blinking light codes mean
Seven blinks - High voltage shutdown. The high voltage has exceeded 33k and the unit goes immediately into safety shutdown. Check power supply regulation and horizontal circuits.

http://www.techlore.com/article/15444/Understanding-Sony-Television-Blinking-Codes/

Sep 03, 2010 | Sony KDL40EX500 40 in. HD-Ready TV

1 Answer

Used my hdmi cable on my other tv perfect,pluged it back to my old tv and it dont work why ? ps3 im on about


f you attached your PS3 to an HDMI capable TVit asks you if you want to switch to HD Mode.

However, once you attach it back to a regular TV you get no picture.

Follow these steps to resolve:

1. Turn off the PS3 so it only shows a red light. You can flick the power switch in the back then back on again.

2. With your PS3 connected to the TV and the TV on, press and hold the power button.

3. Hold the power button until the screen "flickers" and then immediately release.

4. Wait a few seconds and the PS3 logo should appear.

Feb 08, 2010 | Sony Playstation 3 (PS3) Console

1 Answer

Receiver shuts off/protect shows on display. turned off then back on did not help


If the unit goes into this mode immediately, it suggests that the output transistors are shorted. This is a common problem that is easily address by anyone with audio repair experience. The parts are available generically and will run about $15 or so.

Dan

Mar 18, 2009 | Sony STR-DE345 Receiver

1 Answer

Tuning digital channels


This is answered on the sony support pages see
http://www.sony.co.uk/section/contact
and then enter 're-tune digital channels' in the 'search by keyword' box for the explanation.
It basically needs a software upgrade which will be downloaded free if you've still got a freeview channel - but if you've lost them all you'll need help - anyway it's all explained by sony.

Jan 15, 2009 | Sony FD Trinitron WEGA KD-32FS130 32" TV

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