Its kind of hard to mess up replacing a board in a TV, only thing to watch out for is the board can hold a charge after its unplugged even if its not working. Here is the service manual for your set.
Toshiba 50HP16 Service Manual
The main power supply regulator section circuit fault. Either it will be a separate board, or the part of main board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/ It will be best to replace the power supply regulator board as card basis rather than making "Surgery" to it; which usually will make loss for both money and time. Even though you can make it right, it will cost around an amount equal to the cost of a new board; including the cost of (spare parts + service charge) More to say, most of the spare parts to it will be difficult to get from open electronic spare part market. This is true to most of the flat panel TV power supply boards; irrespective of its brand and screen size.
Unplug the unit for few minutes, say 15 minutes and then turn it back on. If the problem persists, this would confirm an internal failure. You need to get the TV repaired.
There could be few possibilities ranging from power supply board to y sustain board. You need to open the TV and check the power supply board. If you find any bulged/leaked/swelled cap, you need to replace them.New caps could be available from radioshack or fry's. You need to have electronics repair experience and should know how to use multimeter and soldering iron to repair it yourself.
After this, Would like for you to take your meter and place it on DC voltage, start
at the power supply the positive end on VS, Then VA and the negative
wire to the panel this is the best ground. Turn on and see if the
voltage is present at the VS, VA, V-scan, According to the Label. if a
voltage is missing remove each plug from the power supply to make sure
they are not holding down the voltage, If you don't find one that's
trying to climb, or shows close to what it should be, another method is
to locate a short circuit place meter on ohms or beep test follow same
procedure no voltage should be shorted to ground. And this is the
problem. You can unplug each board one at a time, Starting with the
Y-SUS then the Z-SUS.
In that case you have a faulty part in it. The tv must be opened and tested. Since you still have sound you should start by testing the Y-sus board - the voltages on exit and the return( Va, Vs and Z-bias). If you have never done this before then call a repairman, you can do a lot of damage if you touch the wrong stuff by accident.
Check the fuses on the ysus & zsus boards. Are any fuses on boards open . Disconect power cabels to ysus board first {board on left} . put tv on . if the light is green the ysus board must be replaced.
Display IC seems to have gone. It will be a replaceable module. Only you have to figure out which one it is. Such thing happen in electronics. Look for any burnt or bulged IC.
Hello Iam wondering have you tried to see under the TV setting Audio and see if the fuctions are muted or try to unplugged the tv and wait for a few minutes plug it back in.
Also when th tv is turn back on or unplugged and plugged back in see if the power button light flashes red And listen to the speakers to see if there is a faint crackling
I have a Toshiba 50HP15 PLasma flat screen TV. Its been working tone for 2 years now. All of a sudden without warningm the right 1/3 of tghe picture is missing and is black, where as the other 2/3rd of the picture is great picture and in HD. When I press DISPLAY on the remote control is says FULL 720p. When I press the Picture Size button on the remote the message NOT AVAILABLE come on. Anyone with suggestions. Thanks
This is a known issue with this TV. The following might resolve it:
Check Mute and Volume:
Ensure that the TV is not muted and that the volume is set appropriately. Sometimes accidental button presses can lead to muted sound or low volume.
Inspect External Speakers:
If you're using external speakers, verify their connections. Loose cables or faulty speakers can cause sound issues.
Test Different Inputs:
Connect a non-HDMI device (such as a DVD player) to the TV. Observe if the sound distortion occurs. If it doesn't, the problem might be related to the HDMI signal from your Virgin box.
HDMI Troubleshooting:
If the issue persists with the DVD player over HDMI, consider the following:
HDMI Cable: Check the HDMI cable for damage or loose connections.
Virgin Signal: Contact Virgin to inspect the signal/lines and replace the box if necessary.
Mainboard Replacement (if needed):
If the sound distortion persists, it could be due to a faulty sound processor chip on the TV's mainboard. In this case, consider replacing the mainboard.
TOSHIBA 42RV500E, 42RV500T, 42RV500Y, 46RV500E, 46RV500T User Guide (manualmachine.com)
There may be loose contact or track open in main board.So try to check the main board thoroughly where you may find the loose of connection or track open.
Locate the Battery Cover: Look for the battery cover on the back of the remote control. It is usually a small compartment that can be easily opened.
Remove the Battery Cover: Depending on the design, there may be a latch, screw, or sliding mechanism to secure the battery cover. Use your fingers or a small screwdriver to open the compartment.
Remove Old Batteries: Take out the old batteries from the battery compartment. Pay attention to the orientation of the batteries, so you know how to insert the new ones correctly.
Check Battery Polarity: Take note of the positive (+) and negative (-) signs inside the battery compartment. Make sure to insert the new batteries with the correct polarity to match these markings.
Insert New Batteries: Place the new batteries into the battery compartment, ensuring they are properly aligned with the correct polarity. Press them down gently to make sure they are secure.
Replace Battery Cover: After inserting the new batteries, close the battery compartment cover securely. If it has a latch or screw, make sure it is fastened properly.
Test the Remote: Point the remote at the device it controls (such as a Toshiba TV) and test whether it responds to your commands. If the remote is working correctly, you have successfully replaced the batteries.
Dispose of Old Batteries: If the old batteries are no longer usable, make sure to dispose of them properly. Many communities have designated recycling locations for batteries.
Serial numbers don't work Judy
https://www.google.com/search?q=A10A13799C3300
They are purely a numerical identifier of when it was made, year, day, number on the shift, whether it Joe or Billy who did final inspection.
With a MODEL number I can find them easily with just 'make model manual'.
Toshiba
http://www.toshiba.com > support > content
PDF
Thank you for purchasing this Toshiba LCD TV. This manual will help you use the many exciting features of your new LCD TV. Before operating your LCD TV, please.
62 pages
Toshiba
http://www.toshiba.com > support > content
PDF
Thank you for purchasing this Toshiba LCD TV. This manual will help you use the many exciting features of your new LCD TV. Before operating your LCD TV, please ...
62 pages
..
