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Sony KDL40Z4100 Screen Setup does not default to 4:3 signals

I have a new Sony KDL-40Z4100 with AT&T Uverse TV on the HDMI 1 input. How do I program Wide Mode, Auto Wide and 4:3 Default so that the TV automatically displays 4:3 and 16:9 pictures without distortion?

With Wide Mode set to Wide Zoom, Auto Wide set On and 4:3 Default set to Normal; a 4:3 signal always displays streched (distorted) accross the whole screen. Manually changing to Normal will display the 4:3 signal correctly with black bars on each side and the picture the full height of the screen

Changing to an HD channel with a 16:9 picture will then display small in the center of the screen with black on all four sides until I change the setting again to Wide Zoom or Zoom.

I know that it is possible to have the TV automatically displays signals in the correct aspect ratio because our 6 week old Samsung LN37A550 does so flawlessly!

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2 Suggested Answers

  • 5 Answers

SOURCE: Sony KDL-40WL140 vs KDL-40Z4100

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.

Posted on May 25, 2009

dave1645
  • 834 Answers

SOURCE: HD broadcast picture is not full screen. How do I

go into your customers setting and change you aspect setting to either full or auto

Posted on Sep 17, 2009

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Hello My, just bought Sony KDL 46 NX 700 shows on the screen " No signal. Check the external input or select another input using the input button". My TV cable is connected and TV it replaced...


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You can press your INPUT button, then scroll to the TV function, which should show up on the top.

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Sony kdl-40v5100 has handshake problem


1.This issue sounds as though the TV connection circuit has an issue.
2. You have changed the DVR and the HDMI cables and you still have an issue with the video (pink screen) indicates a video circuit issue ( improper voltage or current) at the video section of the circuit.
3. This will require some troubleshooting by a qualified tech.
4. To make sure, try connecting another properly working LCD TV to the cable box or DVR an check.If you get a picture and sound properly it is the TV.
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Feb 05, 2010 | Sony Bravia KDL-40V5100 40 in. LCD HDTV

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I have the same problem did you ever find a solution

Jan 07, 2010 | Sony Bravia KDL-40V5100 40 in. LCD HDTV

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My sony kdl40z4100 will not turn on. It worked normally yesterday. I checked power cord, surge protector, as well as the cable box. The remote works, but the TV will not power up.


Try leaving the TV unpugged for 30 minutes so the TV can reset itself.
If that doesn't work, most likely the TV has a power supply related problem. The most common thing to go out is the circuit board that supply power to the screen. Commonly called a Backlight Inverter Board.
I can't say it's 100% the problem because I can't actually look at the tv over the internet.
If by chance the TV is still under warranty, go that route.
If not under warranty and If you have some electronic experience, you can purchase a Service Manual over the internet and diagnose the source of the problem and fix it by soldering in the new part. The Service Manual will give you circuit diagrams, test points, and part# lists. Usually, cost under $20.

I hope I shed some light on the subject for you.

Jun 29, 2009 | Sony Bravia KDL-40Z4100 40 in. LCD TV

1 Answer

Sony KDL-40WL140 vs KDL-40Z4100


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.

May 25, 2009 | Sony Bravia Z KDL40Z4100 TV

1 Answer

Lcd screen


You will have to have the factory service replace the screen. This is a very involved job. The replacement screen is available from the Sony parts department if your set model is not obsolete yet.

From experience you will find it cheaper to buy a new TV set than replace the screen!

Jerry G.

Nov 12, 2008 | Sony BRAVIA KDL-40S2010 40 in. LCD...

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