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Search: Posts Made By: notallbad
Forum: Troubleshooting TVs and Video Sources 05-14-2020, 02:13 AM
Replies: 24
Views: 269
Posted By notallbad
Re: Hisense H55A6500UK backlight, sound but no display

So just a quick update on this to close it off!

T-con arrived and fitted and all working as it should be.

Thanks again!
Forum: Troubleshooting TVs and Video Sources 05-07-2020, 09:08 AM
Replies: 46
Views: 631
Posted By notallbad
Re: LG 65UH5500-UA common problem?

Swap the ribbon and let us know the results, of course only one half of the panel with work but at least it will put your mind at rest knowing its as simple as replacing the ribbon.

We're all...
Forum: Troubleshooting TVs and Video Sources 05-07-2020, 09:06 AM
Replies: 46
Views: 631
Posted By notallbad
Re: LG 65UH5500-UA common problem?

After writing that realised the OP has already disassembled his to replace leds. So already knows how to do it.
Forum: Troubleshooting TVs and Video Sources 05-07-2020, 08:44 AM
Replies: 46
Views: 631
Posted By notallbad
Re: LG 65UH5500-UA common problem?

I guess you came across this tv cheap or free, so don't know the history. So its possible the fault was already there before you attempted the led repair.

I have my fingers crossed for you, hoping...
Forum: Troubleshooting TVs and Video Sources 05-07-2020, 08:39 AM
Replies: 46
Views: 631
Posted By notallbad
Forum: Troubleshooting TVs and Video Sources 05-07-2020, 03:03 AM
Replies: 46
Views: 631
Posted By notallbad
Re: LG 65UH5500-UA common problem?

There is hope for the OP here then, thats good.

But do check the connector pins look to be in good shape and not damaged as the ribbon pin is damaged for some reason yet unknown?

Be absolutely...
Forum: Troubleshooting TVs and Video Sources 05-07-2020, 01:56 AM
Replies: 46
Views: 631
Posted By notallbad
Re: LG 65UH5500-UA common problem?

Wonder if anyoneone else would like to jump in here with there vast knowledge.
I'm not sure that one pin being disconnected from the ribbon would cause your problem but could be wrong, possible it...
Forum: Troubleshooting TVs and Video Sources 05-07-2020, 01:28 AM
Replies: 46
Views: 631
Posted By notallbad
Re: LG 65UH5500-UA common problem?

yh, the actual tv power plug.

Lift the speaker off and inspect the tab bond to see if you can see any obvious damage and compare to the others. But usually damage is at the panel side which will...
Forum: Troubleshooting TVs and Video Sources 05-07-2020, 01:23 AM
Replies: 4
Views: 191
Posted By notallbad
Re: Heard of the stacking method for LED repair. How about the side by side method.

That is bad, hope I don't ever come across anything like that.
Forum: Troubleshooting TVs and Video Sources 05-06-2020, 06:30 PM
Replies: 46
Views: 631
Posted By notallbad
Re: LG 65UH5500-UA common problem?

You need to be more careful at the panel end more than at the tcon end. Being very careful not to flex the panel cof boards or break the retaining clips.

And be absolutely sure power cable is...
Forum: Troubleshooting TVs and Video Sources 05-06-2020, 03:44 PM
Replies: 46
Views: 631
Posted By notallbad
Re: LG 65UH5500-UA common problem?

Looks to me more like a tab bond fault, do a google on the subject.
I truly hope you prove me wrong!

Def not an easy job even for those more experienced.

As you have already ordered them just...
Forum: Troubleshooting TVs and Video Sources 05-06-2020, 02:08 PM
Replies: 24
Views: 269
Posted By notallbad
Re: Hisense H55A6500UK backlight, sound but no display

To be honest I was already working along those lines getting a cap from a tcon I have lying around, matching size/shape/color but have managed to source a replacement tcon for 3 incl p+p so think I...
Forum: Troubleshooting TVs and Video Sources 05-06-2020, 01:15 PM
Replies: 24
Views: 269
Posted By notallbad
Re: Hisense H55A6500UK backlight, sound but no display

I dared! And it powered up, panel looks good too, Yippee!!!

Powered if off quick.
Forum: Troubleshooting TVs and Video Sources 05-06-2020, 11:33 AM
Replies: 24
Views: 269
Posted By notallbad
Re: Hisense H55A6500UK backlight, sound but no display

So, it would seem C177 was shorted.
Removed C177 and the cap is shorted.
The short across the other caps and the M8R340 has gone.
Also on the reverse side, VD5 showed as a short, but also now...
Forum: Troubleshooting TVs and Video Sources 05-06-2020, 08:58 AM
Replies: 24
Views: 269
Posted By notallbad
Forum: Troubleshooting TVs and Video Sources 05-06-2020, 08:45 AM
Replies: 24
Views: 269
Posted By notallbad
Re: Hisense H55A6500UK backlight, sound but no display

Yh, I think buying a replacement T-con might be the best way to go!
Forum: Troubleshooting TVs and Video Sources 05-06-2020, 08:02 AM
Replies: 24
Views: 269
Posted By notallbad
Re: Hisense H55A6500UK backlight, sound but no display

M8R340 or MBR340, top right. DMM on diode setting get a reading of 120 one way only.
On the pcb pads get a short.
Sorry, picture upside down.

T-con disconnected from main and panel.
Forum: Troubleshooting TVs and Video Sources 05-06-2020, 06:59 AM
Replies: 24
Views: 269
Posted By notallbad
Re: Hisense H55A6500UK backlight, sound but no display

Yh 12v on both sides of fuse and 1.8v on vcc1.8 and 1.2v on FRC_1.2V1.

Appears to be a short across VD8 - MR340, even with one side lifted the short exists between the pads, not the diode.
Short...
Forum: Troubleshooting TVs and Video Sources 05-06-2020, 06:24 AM
Replies: 24
Views: 269
Posted By notallbad
Re: Hisense H55A6500UK backlight, sound but no display

Yh, the backlights are definately on and bright.

Disconnecting the T-con ribbons to the panel boards one at a time makes no difference, still no picture/menu.
Forum: Troubleshooting TVs and Video Sources 05-06-2020, 06:02 AM
Replies: 24
Views: 269
Posted By notallbad
Re: Hisense H55A6500UK backlight, sound but no display

Theres 18v on VAmp on XP805 connector and 125v for the backlights on connector XP701.
Forum: Troubleshooting TVs and Video Sources 05-06-2020, 05:37 AM
Replies: 24
Views: 269
Posted By notallbad
Re: Hisense H55A6500UK backlight, sound but no display

Sorry. the spacing has come out wrong in the post.
Edited post to separate them out.
The 12v lines are 9v in stby and 12v when powered on.
Forum: Troubleshooting TVs and Video Sources 05-06-2020, 05:02 AM
Replies: 24
Views: 269
Posted By notallbad
Hisense H55A6500UK backlight, sound but no display

Tv turns on, backlights on but no picture, sound is present. Responds to remote, mute, voll up/down etc..
On initial power up the red led comes on solid, then switch on red led blinks 17 times....
Forum: Troubleshooting TVs and Video Sources 04-30-2020, 02:09 AM
Replies: 47
Views: 666
Posted By notallbad
Re: LG 42LV355T Blue screen No picture

Is there any way of checking its def the amp ic before replacing as I wanted to avoid doing that if possible.

I dont think its getting warm, will check with thermal gun.
Forum: Troubleshooting TVs and Video Sources 04-29-2020, 04:14 PM
Replies: 47
Views: 666
Posted By notallbad
Re: LG 42LV355T Blue screen No picture

unfortunately nothing like that in the user menu
Forum: Troubleshooting TVs and Video Sources 04-29-2020, 01:32 PM
Replies: 47
Views: 666
Posted By notallbad
Re: LG 42LV355T Blue screen No picture

It did the update smoothly but still no change.
Showing results 1 to 25 of 500

 
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