Top 20 Toshiba 37AV502U 37 in. LCD HDTV - Page 8 Questions & Answers

Probably a defective circuit component or components.

Connect your wifi modem ethernet cable into the back of the TV.

the pin code for your Toshiba tv is 0000

Backlight issue! It is either the led backlights blown or T-con board! Further testing needed to determine which.

try going into menu then set up and turn off blue screen or check input or source also

mostly its power supply problem

Request the manual from Toshiba.

Those blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit section inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices. https://electronicshelponline.blogspot.com/ Blinking codes details to many popular brand TVs are given. Surf the site with patience. If blinks continue without any pause, the main board is faulty.

The trouble with the video cassette recorder is it is full of rubber components - belts and wheels that don't age well, though it is doubtful that is the only problem. Capacitors too, often don't age well, especially if the unit could have been subjected to high summer temperatures or freezing winter temperatures but again that probably wouldn't render the machine completely unresponsive. It should be possible to remove the top cover of a front loader and turn the mechanism by hand to remove the tape but putting it back into working order should be left to a professional. There is often an internal fuse and it could be worth checking that...

Loading mechanism fault. Contact any service technician. This is not a user repairable fault. If you wish to get some details; check the site linked here. Pull up older posts. https://elektrotricks.blogspot.com/ http://electronicshelponline.blogspot.com/

https://forums.tomsguide.com/threads/toshiba-55l621u-wont-turn-on-properly.464226/ https://forums.bestbuy.com/t5/TV-Home-Theater/Toshiba-55-quot-LED-TV-55L621U-Turns-On-amp-Back-Off/td-p/1331053

Remove the entire plug and socket assembly and replace with something new.

Did you do a flashlight test?

if your handy with electronics get a multi-meter and find what has failed

I would check all the connections to the circuit board first.

0156, 0060, 0154,

not possible panel problem

Yes you can still find a DTV, Digital to Analog OTA tuner, converter box in some locations. Amazon has a number of them listed here, https://www.amazon.com/analog-to-digital-dtv-converters/b?ie=UTF8&node=979935011 . Some even have an option for recording video to a USB drive. For your Toshiba 56H80 TV, make sure to chose one with RF, composite or component video output on the converter. (Note: not all models are in stock. Other vendors will have some as well.) Cindy Wells (My experience with the converter boxes from the start of the change over is that some models failed easily. The power supply transformer failed on one model with the USB recording option. Another got hit by a surge during a thunderstorm.)

Replace the unit: If you were a trained technician, I can see repairs, but unless you have that ability; replace the Toshiba and get on with your life.

connect universal board to confirm panel or main board