Question about Toshiba 20AF43 20" TV

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Television inoperable TV shut off during a thunderstorm and would not come back on. I suspected a blown fuse since there was power to the outlet which it was plugged into. Removed cover and found 6.3 amp fuse OK. Further check found that I had lost the 114v and 115v source voltages. How are these developed?

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SOURCE: TV making chirping sound

If one of the secondary supplies is shorted, the power supply will "chirp" when plugged in. This is the power supply's way of protecting itself and this usually happens when the horizontal output transistor is shorted. If this set was in my shop and needed a new output transistor, a fair price would be right around $100.

Posted on Jun 28, 2007

  • 398 Answers

SOURCE: TV making chirping sound

If one of the secondary supplies is shorted, the power supply will "chirp" when plugged in. This is the power supply's way of protecting itself and this usually happens when the horizontal output transistor is shorted. The only real problem I find with front AV jacks is that they crack loose from the board, because they are subjected to the extra stress of the AV jacks being constantly plugged in and unplugged.

Posted on Jun 28, 2007

  • 19 Answers

SOURCE: TV blew fuse. Replaced with

replacing the fuses with random values is prolly not a good thing...but one thing to check is a big transistor know as the HOT. This will more than likely be clipped or screwed to a heat sink NEAR the flyback (big transformer, has a wire going into the big glass tube). That causes fuses to blow...If this does not work, let me know.

Posted on Dec 01, 2010

  • 11361 Answers

SOURCE: 37" Toshiba TV (37av50u) no picture no sound?


You need to check the DC output voltages on the power supply DC output connectors first.

Please read my guide to get some understanding.
Basic troubleshooting guide here:
Failed TV and Monitors:
Learn about bad caps:
Capacitors kit: he can make you a set of caps.
Or just make sure to use caps with low ESR, 105c, high ripple current, long life rating such as PANASONIC FM or FC series.
Please leave rating if it helps.

Posted on Jan 17, 2011

  • 8457 Answers

SOURCE: Toshiba TV dead: is there a fuse inside? Toshiba

Yes,there is a fuse in inside on the tv main pcb board near the power a/c cord.But if the tv have sparks,main pcb board could have more other components fries too.If tv less 10 years repair it by a shop,more than that should buy a another tv.

Posted on Jun 09, 2011

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Please my tv with on the standby mode when i try to put it back it couldn't the indicator now goes on and off with picture show please help

The standby light on a Sony television indicates when the television is turned on and operating, or turned off and in "standby" mode. However, this light also serves a secondary function: indicating when there is a problem with the television by flashing. When the standby light begins to flash, there are two reset options that can be performed to resolve whatever issue it's indicating -- a power reset and a factory reset

1. Turn off your TV
  • 2. Unplug the television from the electrical outlet. If you're using a surge protector or power strip, disconnect the television from the strip itself. Only by disconnecting the power cord from the outlet can you ensure no power reaches the TV during the power cycle.
  • 3. Leave the television without power for at least 60 seconds. This gives the television enough time for all components to power down during the power cycle
  • 4. Plug the television back into the electrical outlet. If you're using a surge protector or power strip, plug the television directly into the wall outlet instead. The surge protector may otherwise interfere with the power-up cycle, especially if it is old or damaged.
  • 5. Turn on the television. If the blinking standby light continues, you'll need to move on to the factory reset process.

  • 1. Turn on the television.
  • 2. Press and hold either the "Reset" or up arrow button on the remote control.
  • 3. Press and release the "Power" button on the front of the television, while keeping the "Reset" or up arrow button on the remote depressed.
    4. Release the "Reset" or up arrow button.
    5. Allow the television to reset after the "Reset" message appears on the screen.
    6. Make no adjustments to the television for at least one minute after the reset has completed. This is to allow the television time to finish auto-configuration and initial set up.
    7.Turn off the television and unplug the power cord from the electrical outlet.
    8. Wait ten seconds, then plug the television back into the electrical outlet and turn on the TV.
    9. Follow all on-screen instructions to complete setup. These are the instructions displayed the first time you set up the television, for configuring channels, menu language, time, display properties and more.
  • Dec 30, 2014 | Sony FD Trinitron WEGA KV-32FS120 32" TV

    1 Answer

    Power flickered during thunderstorm, TV wont come back on. heard little pop from tv when lights flickered.

    Unplug it and take the back off. Look too see if the fuse right next to the power cord is black. Replace it. If it pops again, you have damaged the board and need a repair guy. Look for any burnt parts before replacing the fuse.

    Jun 16, 2011 | Panasonic CT-32D12D 32" TV

    1 Answer

    My TV just turned off and the red power light started to blink, why?

    In most cases this error will dissapear by switching your television off at the wall and then switching tv on (via power button on TV front/side panel) "Whilst still switched off at wall outlet"

    This will discharge all capacitors inside the TV

    Now turn TV power button off then switch back on at the wall outelt then try to resume watching TV.

    This solution may clear the blinking red light however if it does not it could be a more serious issue such as a blown fuse or even blown control circuit on the TV, In this case you should decide whether a repair is economical or to replace the TV.

    This solution is based assumption this a CRT television and not an LCD.

    Hope this helps

    Feb 28, 2011 | Toshiba Standard (CRT) Televisions

    1 Answer

    Television has no power. outlet has power and cord from outlet to television has power. is there a fuse?

    All telivisions has fuses inside. Some of them has one, and some has two. If your tv doesn't power on, and power chord and outlet is ok, surely the fuse inside may blown out. There may be some reason for the blowing of fuse. Fuses are used inside tvs are for protection purposes. f any overvoltage or over current taken by the system, the fuse will blow out. you must fist find out the resom for the bowing of fuse. New fuse must be put in only after that check. Otherwise you will spoil the whole circut board inside the tv irrepairable. Concat a service personnal, and let him do that. Ok.
    Remember, different tvs have different power ratings. Must select proper fuse according to the ratings.

    Oct 13, 2010 | RCA 32F531T 32" TV

    1 Answer

    My cable went out during a thunderstorm. The

    if it is new it should be under warranty,if not ,yes there may be a fuse inside,on the board where the plug is connected,taking it apart will void the warranty and can be dangerous .dont try this unless you have experience

    Sep 21, 2009 | Standard (CRT) Televisions

    1 Answer

    After a bad thunderstorm we cant get the tv to power up again

    It may be just the internal fuse has blown, but in most of these circumstances it is very likely other components in the power supply have shorted out which will blow the internal fuse immediately when replaced. I would advise having a local repair service centre take a look at it to assess the damage that a lightning strike can cause to a TV.

    Sep 14, 2009 | Loewe Standard (CRT) Televisions

    1 Answer

    Tv won't turn on at all

    no remote but tv was working with front power key? unplug from ac outlet and plug back and listen for any type of indication (noise or chirp) that something energizes inside if theres nothing then suspect a power supply problem, main fuse blown, shorted low volt rectifiers other components could be at fault.

    Aug 05, 2009 | Panasonic CT-32SL13 32" TV

    1 Answer

    I have a mitsubishi cs-40307 that never powered back on.

    try to check the horizontal output transistor if it is good,check up the power regulator

    Jan 10, 2009 | Mitsubishi CS-40307 40" TV

    1 Answer

    Panasonic television

    I had the same problem, however mine was a 32inch. It is a blown fuse. It is not the power cord. What you need to do is find out what fuse voltage you need. Hope this advice helps. I have a panasonic model CT-32SX12C.

    Aug 20, 2008 | Panasonic CT-36SX12 36" TV

    1 Answer

    Av32D104 JVC Television Wont turn on , Has power to light on front that reads "auto timer" what now?

    Unplug the tv set for 30 seconds, plug back in and turn set on, if its wont fix the problem, and you're NOT under warranty you should at least open the TV and look for a blown fuse near where the power cable enters the set. A lot of times you can buy replacement fuses at a local electronic or hardware store and they're easy to replace. Check the fuse. If it is blown, it will be obvious and make sure that the set is unplugged before replacing it. If it blows again, or if it is not blown, your problem is probably in the 'X' volt regulator and you will need professional help with the repairs. You can also check the board where the components are mounted and resoled any that look bad. Brief power outages may cause the TV to turn off on its own. If you are using a surge protector, try connecting the set directly to the wall outlet. In your case it could caused by a blown fuse, a leaky diodes or a bad solder joint at the horizontal drive transformer. All can be replaced at a local electronic or hardware store and they're easy to replace If this does not correct the problem, you may need to have your TV serviced. good luck!

    Jan 05, 2006 | JVC AV-32D104 32" TV

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