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Posted on Apr 10, 2012
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My Coby 40 inch HDTV wont turn on. The blue light on front (standby?) is on but I can't turn it on. Help I don't wanna buy a new tv

  • 4 more comments 
  • Anonymous May 25, 2013

    1. hold the [vol-] and [menu] button. 2. while holding those, press the [power] button and let go of the [power]button only 3. wait 5 seconds then let go of [vol-] and [menu] 4. wait for a while(approx 30secs).....do you get a picture works for me :)

  • Anonymous May 25, 2013

    this worked for me :)

  • Shirley Lee
    Shirley Lee Oct 26, 2013

    Now, why does that work? It worked for me also.

  • Shirley Lee
    Shirley Lee Oct 27, 2013

    Only worked ONCE, so if you get it turned on, don't turn it off!

  • Marnita Moore
    Marnita Moore Feb 02, 2017

    Got it to come on making a frying noise and no picture

  • Pamela rasberry Oct 12, 2019

    How too fix this issue

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4 Answers

R petrie

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  • Posted on Sep 07, 2017
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My TV also does this, I just keep trying, maybe 10 or 20 times eventually the speaker will crack, but it usually takes 2 or 3 more trys before it comms on. Need replacement parts and instructions. Are any available?

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  • Posted on Feb 21, 2015
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My 32" coby does the same. I'll hit power and the blue light brightens like the TV is going to turn on but then it just dins again. Could take up to an hour or more and too many tries to turn the dang thang on. I've had it for 2 yrs now and just don't watch enough tv to want to spend money on a new one. Here is what I have found to work. 1. Never turn your tv off. I put it on mute when I go to bed. 2. If TV does turn off due to power or whatever, I found that using a power surge cord and ONLY plugging in the TV cord works. It turns on for me within 5-6 tries. When more than one item is plugged in it will take forever to turn on. Hope this helps.

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  • Posted on Jul 21, 2015
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My coby 40 inch has blue light .hit power it get brighter then cuts on then right back of in 1 sec.any ideas on what this my be?

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  • Coby Master 933 Answers
  • Posted on Apr 11, 2012
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I had a 32" Coby that did the same thing, turned out to be a defective main board. The main board wasn't sending the 3.3v signal to wake up the power supply. In my case I sold the tv for parts because it wasn't cost effective to replace the main board. It sound like your main board

5 Related Answers

Anonymous

  • 105 Answers
  • Posted on May 27, 2009

SOURCE: Newer Jvc tv wont turn on

1. hold the [vol-] and [menu] button.
2. while holding those, press the [power] button and let go of the [power]button only
3. wait 5 seconds then let go of [vol-] and [menu]
4. wait for a while(approx 30secs).....do you get a picture

This works for the JVC models that end in "9" and end in "0"

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Anonymous

  • 7 Answers
  • Posted on Dec 10, 2009

SOURCE: 3 year old Samsung 40 inch LCD TV will not turn on

ohh i had the same thing happen to me. the answer would be getting the powersupply fixed.

Anonymous

  • 53 Answers
  • Posted on Aug 01, 2009

SOURCE: vertical lines on my 40 inch lcd mitsubishi hdtv 1080

Bad/Going Bad/Will go horribly bad TCON board (small circuit board sitting at the top of the panel in the back).

Most likely, the whole panel will need to be replaced in order to rectify the issue.

Anonymous

  • 84 Answers
  • Posted on May 04, 2008

SOURCE: hdtv lcd 40 in. broken screen face

You can have them repaired using a TV Repair guy but often it costs as much as a brand new tv. My daughter broke my $1,600 LCD. It would have cost $1,200 to fix.. so I just bought a new one.After that I picked up a TV screen protector called TV Armor http://www.tv-armor.com Its designed to protect the TV from damage. Now I dont have to worry anymore when she is playing near it. It works really well.

Eric

Anonymous

  • 2 Answers
  • Posted on May 05, 2010

SOURCE: Technika lcd32-207 is stuck in standby. Blue standby light dims.

Hi brendafoud, have you had this fixed as mine is the same and has been for months. It happened just after the warranty had ran out(typical). Bought from ebay and the people I got it from are not very helpfull. Have you got yours fixed yet?

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My coby tftv3227 tv won't turn on and has no sound plugged it in new power source and still nothing what to do?

I see so many here with no sound/nopicture issues:

ISSUES:

1. IF sound main fuse/s are good.
2. If no power or standby check main fuse, standby power supply and any signsof damage you can see---burnt parts etc.
3. almost all these sets the troubleshooting involves checking voltages on the main power board to narrow down theproblem.
4. Be safe and if you do not know what you are doing don't open the set.

Answers to issues:

1. RE:fuses---if a blown fuse is found get a good replacement(not the genericones like Radio Shack). Many fuses are special even aside from amperage--Don'tput a higher rated amperage fuse in the set for any reason.

2. RE: power supply in set: if total dead aside from main fuse the set uses astandby power supply that runs 7/24 and a main supply (some are combined andsome not.

Here aside from checking fuses you want to examine all the filter caps on thepower/standby to see if any are puffed up or buldged up in some fashion--Iattach a photo of a good one---top should be silver metal and PERFECTLY flatand have no brown material coming out on top or bottom.

What happens in the standby area is they use caps with too low a voltage rating(saves money) which causes them to fail in a year or two---the standby runs7/24 and the heat dries out the caps and they fail.

3. Trouble shooting consists of the above and then at some point you have to buyand try a board to see if it fixes it or not.

4. Safety first--no TV set is worth getting injured or even killed over.If set is opened at least look for puffed up and bad caps like in thisphoto.5_27_2012_5_44_12_pm.jpg5_27_2012_5_44_31_pm.jpg
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Coby 40" Wont turn on

I'd add something to this. We had the same issue with a 40" coby. We'd declared it dead and after a few days turned it on again to show the problem before trashing it. The TV came on. We've since learned that there seems to be a HDMI handshake issue related to this tv. If you turn it off with HDMI devices still sending a signal, it will periodically return to this point, and take a day before it will turn back on (I guess until the caps are fully drained.) If you turn the TV off first and then devices however, this never seems to happen. Dunno if this is the same for others, but I'm curious
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Coby HDTV Model TFTV 3227 Won't turn on

I see so many here with no sound/nopicture issues:

ISSUES:

1. IF sound main fuse/s are good.
2. If no power or standby check main fuse, standby power supply and any signsof damage you can see---burnt parts etc.
3. almost all these sets the troubleshooting involves checking voltages on the main power board to narrow down theproblem.
4. Be safe and if you do not know what you are doing don't open the set.

Answers to issues:

1. RE:fuses---if a blown fuse is found get a good replacement(not the genericones like Radio Shack). Many fuses are special even aside from amperage--Don'tput a higher rated amperage fuse in the set for any reason.

2. RE: power supply in set: if total dead aside from main fuse the set uses astandby power supply that runs 7/24 and a main supply (some are combined andsome not.

Here aside from checking fuses you want to examine all the filter caps on thepower/standby to see if any are puffed up or buldged up in some fashion--Iattach a photo of a good one---top should be silver metal and PERFECTLY flatand have no brown material coming out on top or bottom.

What happens in the standby area is they use caps with too low a voltage rating(saves money) which causes them to fail in a year or two---the standby runs7/24 and the heat dries out the caps and they fail.

3. Trouble shooting consists of the above and then at some point you have to buyand try a board to see if it fixes it or not.

4. Safety first--no TV set is worth getting injured or even killed over.If set is opened at least look for puffed up and bad caps like in thisphoto.5_14_2012_1_18_09_pm.jpg
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Sir ! your TV screen is been discharge do get charged by some TV mechanic or buy a new one because it is useless for you.
Thank you!
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When I turn the set off with the remote the blue led light goes out Does this mean the power is actually off or is the set still on standby If so do I really need to buy a 40 pounds power management...

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