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Search: Posts Made By: nomoresonys
Forum: Troubleshooting TVs and Video Sources Today, 03:59 PM
Replies: 2
Views: 11
Posted By nomoresonys
Re: Sharp LC-40LE830U Backlight Problem

This one may apply: While holding down the "VOL (-)" and "CH (up)
while plugging in til tv comes on, something like that.
Forum: Troubleshooting TVs and Video Sources Today, 03:47 PM
Replies: 2
Views: 11
Posted By nomoresonys
Re: Sharp LC-40LE830U Backlight Problem

Unplug the television.
Press and hold the "Channel Down" and "Input" buttons on the panel.
Plug the television back in while holding down these buttons. ...
Keep holding the buttons until the...
Forum: Troubleshooting TVs and Video Sources Today, 01:23 PM
Replies: 38
Views: 2,078
Posted By nomoresonys
Re: Hisense f42k20e turns on, screen goes dark

Not exactly sure but it seems like maybe the mainboard isn't sending proper signal to turn backlighrts on.
Forum: Troubleshooting TVs and Video Sources Today, 09:52 AM
Replies: 38
Views: 2,078
Posted By nomoresonys
Re: Hisense f42k20e turns on, screen goes dark

No, leave it out during test.
Forum: Troubleshooting TVs and Video Sources Today, 03:50 AM
Replies: 38
Views: 2,078
Posted By nomoresonys
Re: Hisense f42k20e turns on, screen goes dark

You mentioned you still don't have a resistor, resistor is recommended, if you are real careful not to touch anything else, you can use a jumper wire, resistor is used so you don't short or blow...
Forum: Troubleshooting TVs and Video Sources Yesterday, 08:19 PM
Replies: 6
Views: 56
Posted By nomoresonys
Re: Sharp Aquos LC-70LE650U weird screen, please help!

https://www.youtube.com/watch?v=yjo8y8iQWLs
Forum: Troubleshooting TVs and Video Sources Yesterday, 08:12 PM
Replies: 6
Views: 56
Posted By nomoresonys
Re: Sharp Aquos LC-70LE650U weird screen, please help!

Seems like you are having same problem as Norcal in this one, you could try his test there to try to confirm, there is still the save by Freakafter8 that you can try once you verify bad tab/s on one...
Forum: Troubleshooting TVs and Video Sources Yesterday, 07:59 PM
Replies: 6
Views: 56
Posted By nomoresonys
Re: Sharp Aquos LC-70LE650U weird screen, please help!

Maybe take it down to where you can get at the side tabs, usually you will notice some damage, like black looking burnt cof (chip on film) or one will be hotter than the rest or bad connection or sum...
Forum: Troubleshooting TVs and Video Sources Yesterday, 02:04 PM
Replies: 92
Views: 1,436
Posted By nomoresonys
Re: when i turn on, Philliips TV is not on

If you had a 5 dollar esr tester you could have taken those caps out and tested them, as it stands you don't even know if they are good or not.
Forum: Troubleshooting TVs and Video Sources Yesterday, 04:24 AM
Replies: 10
Views: 125
Posted By nomoresonys
Re: Vizio D65u-D2 not switching on

Maybe try heating the powerboard with a hairdryer, heat all the caps n optos n such, then see if it starts up or anything changes.
Forum: Troubleshooting TVs and Video Sources 01-17-2020, 05:32 PM
Replies: 10
Views: 125
Posted By nomoresonys
Re: Vizio D65u-D2 not switching on

Check all diodes if any read off lift a leg out of circuit and check again, check for bad/cold solder joints on bottom side of board, look closely at the solder joints of components on heatsinks and...
Forum: Troubleshooting TVs and Video Sources 01-17-2020, 05:16 PM
Replies: 9
Views: 73
Posted By nomoresonys
Re: Bush LED40127FHDCNTD No Picture

The tester might tell you if you are getting the proper voltage from the leds.
Forum: Troubleshooting TVs and Video Sources 01-17-2020, 05:03 PM
Replies: 9
Views: 73
Posted By nomoresonys
Re: Bush LED40127FHDCNTD No Picture

Good question, maybe unplug the backlights at powerboard, look at the screen with a flashlight hit menu etc. see if you see any text or anything on screen.
Forum: Troubleshooting TVs and Video Sources 01-17-2020, 04:55 PM
Replies: 9
Views: 73
Posted By nomoresonys
Re: Bush LED40127FHDCNTD No Picture

Seems like the usual backlight circuit issue, either bad connection or bad led/s.
Forum: Troubleshooting TVs and Video Sources 01-17-2020, 02:18 PM
Replies: 19
Views: 203
Posted By nomoresonys
Re: Toshiba 50L7363D image issues (t-con?)

Well take it down to see the side tabs and look for damage or black or burnt looking cof (chip on film) etc. also see if any get hotter than the others, lots of times the problem is obvious once you...
Forum: Troubleshooting TVs and Video Sources 01-17-2020, 02:03 PM
Replies: 26
Views: 165
Posted By nomoresonys
Re: Samsung 55H6203FXFA won't power up

May have blown the tcon fuse, check if you have about 12 volts on each side of tcon fuse, black - probe on chassis ground red + probe on each side of fuse.
Forum: Troubleshooting TVs and Video Sources 01-17-2020, 02:01 PM
Replies: 26
Views: 165
Posted By nomoresonys
Re: Samsung 55H6203FXFA won't power up

Maybe test those voltage regulators on mainboard, good video there: https://www.youtube.com/watch?v=ocqnqmBxiqY
Forum: Troubleshooting TVs and Video Sources 01-17-2020, 01:43 PM
Replies: 92
Views: 1,436
Posted By nomoresonys
Re: when i turn on, Philliips TV is not on

Looks like r j has it step by step in post #67, see if C912 comes up to proper voltage.
Forum: Troubleshooting TVs and Video Sources 01-17-2020, 09:04 AM
Replies: 41
Views: 1,026
Posted By nomoresonys
Re: lg 43LF5400 - UB

"My t-con board F1 is rated at 2 AMPS and 125V is this where I should get 12V?" Yes black probe on chassis ground red probe on each side of fuse, what do you get?? Test is done in this manner not...
Forum: Troubleshooting TVs and Video Sources 01-17-2020, 08:59 AM
Replies: 2
Views: 53
Posted By nomoresonys
Re: Samsung UE49MU6170UXZG not power up

If "backlight is running with mainboard disconnected" means the backlight stays on, then suspect mainboard as the problem.
Forum: Troubleshooting TVs and Video Sources 01-17-2020, 06:20 AM
Replies: 26
Views: 165
Posted By nomoresonys
Re: Samsung 55H6203FXFA won't power up

Recheck the model number.
Forum: Troubleshooting TVs and Video Sources 01-17-2020, 06:17 AM
Replies: 26
Views: 165
Posted By nomoresonys
Re: Samsung 55H6203FXFA won't power up

Throw up some good clear straight on pictures of all the individual boards and one of the whole back to see how they are connected.
Forum: Troubleshooting TVs and Video Sources 01-17-2020, 06:04 AM
Replies: 15
Views: 1,143
Posted By nomoresonys
Re: Sharp Lc-70le650u only backlight, weird screen on reset, no on screen menu.

It's right there in this thread, read it carefully and follow procedure, do those tests described before tearing off tabs because it can not be reversed and only works for this specific problem. Take...
Forum: Troubleshooting TVs and Video Sources 01-17-2020, 05:51 AM
Replies: 92
Views: 1,436
Posted By nomoresonys
Re: when i turn on, Philliips TV is not on

Simple test, unhook all connectors from powerboard, with just ac plugged in to powerboard, do you have standby voltage??
Forum: Troubleshooting TVs and Video Sources 01-16-2020, 12:49 PM
Replies: 1
Views: 56
Posted By nomoresonys
Re: (SOLVED) D50U-D1 Lights up, no video

Good to hear, thanks for sharing. :rock: :popcorn1:
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