I have sony Sony Bravia 46" Class 1080p 120Hz LCD HDTV, KDL-46EX500. The problem seems to be in aspect ratio.It is company fixed as 4:3 and when when i use zoom the picture and people are distorted.How can I change it to 16:9. Any software to install???

These may help - the first just tell what it is and which ICs maybe the problem (quite technical)
Solved Sony Bravia Blinking Code
Bravia KDL46EX720 Red LED blinks 4 times and TV wont turn on What is the...
or, in the last resort you could try Sony support, either to get a service manual, or to ask a technician. Don't be fobbed with an expensive answer as in one the examples above.
Support for LCD TV BRAVIA Sony

18.November.2015

Contact the authorized service center for Sony. Please don't experiment with this set, anymore. You'll damage it beyond recovery.
http://electronicshelponline.blogspot.com/

Replace main board

37 Class BRAVIA XBR Series LCD Television

sony bravia wont turn on YouTube

you need to replace defective capacitors in the power supply of the tv

Solution for Sony Bravia KDL 46EX723 blinking red light 8 times. Information below is from Sony online support, it worked for me:
Please disconnect the Internet connection from the TV and your TV will work fine.

We are suspecting a network outage issue on Sony device, we are currently investigating this issue. I am really sorry for the inconvenience caused.Unfortunately we don't have any ETA on this,I request you to try at a later time.

YOU NEED TO RESOLDER SOME RESISTORS THAT BECOME LOOSE WITH THE TVS TEMPERATURE... YOU CAN GET A MANUAL TO DO IT YOUR SELF.. AT TVPARTSANDMANUALS ONLINE

Hi,
Press Zoom button on tv remote repeatedly to change screen aspect ratio/ zoom settings of picture that you wish to see.
Thanks.

KDL40Z4100 Product Features

• 16:9 Full HD 1080p Resolution (1920x1080p) LCD Panel
• Motionflow 120Hz; improves TV & DVD viewing
• DMeX compatible; allows seamless feature upgrades
• DLNA® Compliant - view photos from another room
• HDMI x4, HD Component x2, PC Input

Technical Details

• Brand Name: Sony
• Model: KDL-40Z4100/B
• Display Technology: TFT active matrix
• Display Size: 40 inches
• Image Aspect Ratio: 16:9
• is_hdtv_compatible: Y
• speakers_included_description: 2 speakers
• Height: 23.9 inches
• Width: 37.2 inches
• Depth: 2.8 inches
• Weight: 39.7 pounds
• Refresh Rate: 120

KDL-40WL140 Product Features

• 16:9 Full HD 1080p Resolution (1920x1080p) LCD Panel
• Motionflow™ 120Hz - clear, smooth motion for DVDs, TV
• DMex ™ compatible; allows seamless feature upgrades
• Enhanced XMB™ with 3D graphics incl. TV Guide
• HDMI™ x4, HD Component x2, PC Input

Technical Details

• Brand Name: Sony
• Model: KDL-40W4100
• Display Technology: TFT active matrix
• Display Size: 40 inches
• Image Aspect Ratio: 16:9
• is_hdtv_compatible: Y
• speakers_included_description: 2 speakers
• Height: 25.4 inches
• Width: 38.8 inches
• Depth: 4.3 inches
• Weight: 44.1 pounds
• Refresh Rate: 120

Bottom line for the extra connectivity and DLNA certification i would go with the
Bravia Z-Series KDL-40Z4100/B 40-Inch 1080pBecause if you connect this to your in home network you can stream music videos and music off you PC onto your TV without the need for extra wired or memory cards etc.

Otherwise if you don't need this feature the other options are identical on the other TV so it is just as good a choice.

no you cannot change the HD to 1080p . if you could why would there be any 1080p sales???? most people cant see the differance between 720 and 1080p and most sat./and cable HD is only 720p anyway