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Toshiba 50L4300U Support Question

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Question posted by stg72 on January 19th, 2016

Dark Picture.

Hello I have a black screen on my toshiba model 50L4300u television. I have sound and can see the picture with a flashlight. Also there is a blinking green led light on the main board that blinks 3 times. I imagine this is some kind of code. Would you have any ideas what might be wrong? Thank you, Shawn

Current Answers

Answer #1: Posted by waelsaidani1 on January 19th, 2016 12:03 PM
This answer was accepted by the poster of the original question.
waelsaidani1

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The answer was to go into each possible 'picture mode' under the 'picture settings' option and use the RESET option which returned them all to the default values. Picture then came back as before.

Related Toshiba 50L4300U Manual Pages

Resource Guide for Model Series L4300U TV's - Page 1

...mains...panel...Follow all times. •...a flat,...screen follow these sounds become frequent or continuous, unplug the power cord and contact a Toshiba...LED Television Resource Guide 32L4300U 39L4300U 50L4300U 58L4300U NOTE Keep this Resource Guide in a room whose temperature is 32° F (0° C) or below, the picture...Toshiba's Support Web site support.toshiba.com Owner's Record The model...
Resource Guide for Model Series L4300U TV's - Page 2

... required. 30 REC button Used for a long period of time. The party responsible for compliance to these symptoms. 1) An afterimage (ghost) may not work with respect to change without the prior written permission of Toshiba. FCC Declaration of Conformity Compliance Statement (Part 15): Toshiba television models 32L4300U, 39L4300U, 50L4300U and 58L4300U comply with composite video.
User's Guide for Model Series L4300U and L7300U TV - Page 1

.... Owner's Record The model number and serial number are on page 160 in this Television. Integrated High Definition LED Television User's Guide: 32L4300U / 39L4300U / 50L4300U 50L7300U / 58L7300U / 65L7300U If you communicate with your Toshiba dealer about this guide. For details, contact your Toshiba Television at register.toshiba.com Note: To display a High Definition picture, the TV must...
User's Guide for Model Series L4300U and L7300U TV - Page 2

... mounts are not designed to be heavy. MOVING AN OLDER TELEVISION TO A NEW PLACE IN YOUR HOME • Many new television buyers move their older CRT televisions into a secondary room after the purchase of a flat-panel television. If you are unsure, contact a professional installer. • Televisions can easily be used as steps, such as UL, CSA, ETL...
User's Guide for Model Series L4300U and L7300U TV - Page 3

.... NEC, which provides guidelines for long periods of time. 14) Refer all instructions. 5) Do not use...receptacles, and the point where they exit from the damaged television. Servicing is appropriate for replacement of important operating and ...have fallen into your LED TV using a Wall Bracket:" on page 4. The LCD panel inside the TV contains...LED TV, carefully read this Toshiba LED TV.
User's Guide for Model Series L4300U and L7300U TV - Page 5

... the picture brightness may...time from the TV if you need to clean the LCD screen follow these sounds become frequent or continuous, unplug the power cord and contact a Toshiba...panel surface (the TV screen) using the on/off . This is normal, especially when the unit is being turned on the back cover. If you leave the TV unattended or unused for the television, avoid locations where the screen...
User's Guide for Model Series L4300U and L7300U TV - Page 6

...Screw Size 32L4300U 200x200 mm M6 39L4300U 200x200 mm M6 50L4300U 400x400 mm M8 50L7300U 400x200 mm M6 58L7300U 400x400 ... 3) Be sure to secure the TV to the LCD panel. 2) Remove the screws shown in place, remove the ...Toshiba Authorized Service Provider. 46) If you to service the TV yourself. Choosing a location for additional details. To Display your LED TV on a flat...
User's Guide for Model Series L4300U and L7300U TV - Page 7

... to operate this equipment does cause harmful interference to correct the interference by the technology. FCC Declaration of Conformity Compliance Statement (Part 15): Toshiba television models 32L4300U, 39L4300U, 50L4300U, 50L7300U, 58L7300U and 65L7300U, comply with any interference received, including interference that interference will not occur in 5.15-5.25GHz frequency range, then...
User's Guide for Model Series L4300U and L7300U TV - Page 8

To ensure your television is not permanent and will disappear in a short period of time. 2) The LCD panel contained in the USA/Canada market, only channel 1-11 can be installed and operated with minimum distance 20cm between the radiator & your warranty. Environmental Protection Agency. The afterimage is operating at an on the screen if a fixed...
User's Guide for Model Series L4300U and L7300U TV - Page 13

... 79 Locking video inputs 80 Setting a time limit for games 80 Locking the control panel 81 Using HDMI™ CEC Control 81...Picture and Sound Controls 91 Selecting the picture size 91 Scrolling the picture 95 Using the Auto Aspect feature 96 Using the 4:3 Stretch 96 Adjusting the picture 97 Selecting the picture mode 97 Adjusting the picture quality 98 Using the advanced picture...
User's Guide for Model Series L4300U and L7300U TV - Page 14

... ClearScan 100 Cinema Mode (L4300U Series 100 MPEG NR 101 UltraClear DNR 101 Ambient Light Sensor 102 ColorMaster 102 Base Color Adjustment 102 Color temperature 103 Resetting advanced picture settings to the factory default 103 Setting the expert picture settings 103 Test Pattern 103 RGB Filter 104 White Balance 104 Adjusting the audio...
User's Guide for Model Series L4300U and L7300U TV - Page 16

...Control Profile 158 Pairing 159 Chapter 10: Troubleshooting 160 General troubleshooting 160 Picture problems 161 Sound problems 162 Remote control problems 163 Channel tuning problems 163 Closed caption... problems 167 Light Indicator 168 Power On/Standby light 168 If the problem persists after trying the solutions..... 168 Appendix A: Specifications 169 Television system 169 Channel...
User's Guide for Model Series L4300U and L7300U TV - Page 19

...UltraClear DNR that creates superior picture quality. ❖❖ UltraClear DNR-The new Dynamic Noise Reduction technology that filters out video noise without decreasing picture sharpness for clearer fast motion...array of external devices from the TV. ❖❖ Built-in WLAN-Allows the television to access your home wireless network. ❖❖ Intel® WiDi-Allows direct ...
User's Guide for Model Series L4300U and L7300U TV - Page 20

.../Night and Wall/Table Modes. THIS TYPE OF DAMAGE IS NOT COVERED UNDER THE TOSHIBA WARRANTY. see 24) on page 4. ❖❖ Place the TV in a location where light does not reflect on page 8. ❖❖ Audyssey Premium Television® - Secure the TV to a wall, pillar, or other immovable structure, see "Audyssey Premium...
User's Guide for Model Series L4300U and L7300U TV - Page 31

...A/V cable R Yellow White Red Green Blue VCR DVD player YW R L R VIDEO AUDIO COMPONENT VIDEO Y PB PR AUDIO OUT L R G BR WR R W Y R AUDIO L / MONO PR PB Y / VIDEO TV back panel COLOR STREAM HD / VIDEO 2... video 31 NOTE The unauthorized recording, use, distribution, or revision of television programs, videotapes, DVDs, and other materials is prohibited under the Copyright Laws...
User's Guide for Model Series L4300U and L7300U TV - Page 39

... back panel 3 2 1 (ARC) Audio system that supports ARC HDMI cable (Sample Illustration) /L7300U Series- Connecting Your TV Connecting an HDMI™ audio system 39 When using an external AV amplifier the picture and sound may not be sent to the audio system via the HDMI™ cable. In this case, adjust the delay time...
User's Guide for Model Series L4300U and L7300U TV - Page 40

...formats for PC IN and HDMI™" on the TV and hear the sound from the TV's speakers. 40 Connecting Your TV Connecting a computer Connecting..." on the computer before connecting it to the TV. TV back panel PC / HDMI 2 AUDIO IN PC IN PC audio cable PC ... to the PC IN terminal on page 26. To display the optimum picture, use the computer setting feature, see "Overview of cable types" on...
User's Guide for Model Series L4300U and L7300U TV - Page 100

... series) ClearScan® 240Hz uses both frame interpolation technology and advanced backlight control with image synchronization to double the television refresh rate for deeper blacks and increased depth. 1 Press the SETUP button. 2 Select Picture > Advanced Picture Settings > DynaLight and press the OK button. 3 Press the p/q (arrow) buttons to select Cinema, Smooth, Standard, or Off...
User's Guide for Model Series L4300U and L7300U TV - Page 108

...sound including: ❖❖ Audyssey EQ®-provides clear, accurate and natural sound right out of small speakers. Audyssey Premium Television™ These televisions use other than would be necessary to adjust the timing...Volume (Audyssey Dynamic Volume®) is set to PCM. 108 Picture and Sound Controls Adjusting the audio Depending on the connected equipment (amplifier, ...
User's Guide for Model Series L4300U and L7300U TV - Page 109

Picture and Sound Controls Adjusting the audio 109 provide a consistent sound level between television programs, commercials, and between the loud and soft passages of small speakers. Audyssey ABX™ Audyssey ABX™ technology uses sophisticated driver analysis and low frequency monitoring to extend the range and bass of movies. 1 Press the SETUP button. 2 Select Sound > Audyssey...

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