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croupier36 replied to Philips 32PFL5605H/12 issue with displayed colors

in Troubleshooting TVs and Video Sources

11-13-2024, 01:20 PM
Adding some stills from the Demo video, where the issue is clearly seen...
[ATTACH=JSON]{"alt":"Click image for larger version Name:\timage.png Views:\t0 Size:\t1.24 MB ID:\t3506678","data-align":"none","data-attachmentid":"3506678","data-size":"full","title":"image.png"}[/ATTACH]
[ATTACH=JSON]{"data-align":"none","data-size":"full","title":"image.png","data-attachmentid":3506679}[/ATTACH]Adding some stills from...

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croupier36 replied to Philips 32PFL5605H/12 issue with displayed colors

in Troubleshooting TVs and Video Sources

11-13-2024, 01:18 PM
Have taken the actual photo of the SSB....hope it is clear enough....

1 Photo

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croupier36 replied to Philips 32PFL5605H/12 issue with displayed colors

in Troubleshooting TVs and Video Sources

11-13-2024, 01:05 PM
Loged into SAM and changed the White point settings, but the colors were still off....
Must be something else that is causing the issue....

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croupier36 replied to Philips 32PFL5605H/12 issue with displayed colors

in Troubleshooting TVs and Video Sources

11-13-2024, 11:36 AM
Cleaned already...but no change......

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croupier36 replied to Philips 32PFL5605H/12 issue with displayed colors

in Troubleshooting TVs and Video Sources

11-13-2024, 11:32 AM
In this TV the tcon is part of the main SSB (Small Signal Board); 'D' on below photo (not the actual unit (photo taken from the Service Manual), but have the same set-up)....there is no separate tcon board...

[ATTACH=JSON]{"alt":"Click image for larger version Name:\timage.png Views:\t0 Size:\t973.5 KB ID:\t3506586","data-align":"none","data-attachmentid":"3506586","data-size":"full","title":"image.png"}[/ATTACH]...

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croupier36 replied to Philips 32PFL5605H/12 issue with displayed colors

in Troubleshooting TVs and Video Sources

11-11-2024, 12:07 PM
Thanks! Found the screencode...284....and the TV goes to stand by....

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croupier36 replied to Philips 32PFL5605H/12 issue with displayed colors

in Troubleshooting TVs and Video Sources

11-11-2024, 12:06 PM
Thanks for the reply....a stupid question...where am I supposed to look for this as15 chip on the tcon? Checked the schematics that I have and cannot find it mentioned anywhere......

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croupier36 started a topic Philips 32PFL5605H/12 issue with displayed colors

in Troubleshooting TVs and Video Sources

11-09-2024, 11:07 AM
Philips 32PFL5605H/12 issue with displayed colors

Need help with this unit...looks like the colors are not displayed correctly....not an expert, but looks like something wrong with the GREEN...have attached the photo of the 'home menu' and the recorded video of the Demo video that's on the TV for viewing/testing.

Where should I look for faults? Everything else looks/works ok.

BTW...have upgraded to the latest FW/SW version, but nothing changed....

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croupier36 replied to Philips 70PUS6504 without picture

in Troubleshooting TVs and Video Sources

05-14-2023, 10:52 AM
Re: Philips 70PUS6504 without picture

OK, managed to replace the burned LEDs and got the BL working...

But...with the BL working I was able to finally test the picture quality (panel)....and noticed a thick black vertical strip in the middle of the screen and a couple of vertical green lines......not to mention a portion of the panel at the bottom (beside the black strip) that looks like pixels are not working in this area...[HTML][/HTML]

Is the panel gone or an issue that can be repaired (T-con board, etc....)?Re: Philips 70PUS6504 without picture...

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croupier36 replied to Philips 70PUS6504 without picture

in Troubleshooting TVs and Video Sources

05-13-2023, 12:31 PM
Re: Philips 70PUS6504 without picture

Thanks! Have disassembled the TV and have found 3 LED strips with burnt LEDs on them.....1 per strip....

Will try to get some new strips for this model....

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croupier36 started a topic Philips 70PUS6504 without picture

in Troubleshooting TVs and Video Sources

05-12-2023, 12:52 AM
Philips 70PUS6504 without picture

Need some advice where to look/check for the issue...

Got hold of a Philips 70PUS6504/12 that shows no picture....actually there's no backlight....
It actually turns on and I even managed to 'blindly' get to the promotional video in the menu....so when the video starts I can hear the music and can change the volume level....
Based on this I assume that the issue should be somewhere with the backlight (or the power supply for the BL). Tested the PSU with only the BL connected and the BL didn't turn-on.
If I test the voltage on the BL connector of the PSU I get...

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croupier36 replied to Samsung UE/UN55ES6xxx - black screen with backlight on.

in Troubleshooting TVs and Video Sources

05-10-2023, 08:40 AM
Re: Samsung UE/UN55ES6xxx - black screen with backlight on.

So, if I understood correctly....I have to replace only the 2 LED stripes for the BL?
No need to check/replace anything on the PSU board?

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croupier36 replied to Samsung UE/UN55ES6xxx - black screen with backlight on.

in Troubleshooting TVs and Video Sources

05-09-2023, 11:00 PM
Re: Samsung UE/UN55ES6xxx - black screen with backlight on.

OK, thanks!

Will try to open the pannel in the next days....

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croupier36 replied to Samsung UE/UN55ES6xxx - black screen with backlight on.

in Troubleshooting TVs and Video Sources

05-09-2023, 02:48 PM
Re: Samsung UE/UN55ES6xxx - black screen with backlight on.

Pairs with 1 and 2 have still fluctating voltages...

Pairs 3 and 4 are now all at 60 V each.

Photos of the PSU attached....

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croupier36 replied to Samsung UE/UN55ES6xxx - black screen with backlight on.

in Troubleshooting TVs and Video Sources

05-09-2023, 12:53 PM
Re: Samsung UE/UN55ES6xxx - black screen with backlight on.

OK....did the measurements for individual pairs:

R1: 20-25V
R2: 21-26V
R3: 40.7V
R4: 39.6V

L1: 6-11V
L2: 22-26V
L3: 24.5V
L4: 36.3V

The above given measurements in a range are as they were fluctuating during the measurement.

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croupier36 replied to Samsung UE/UN55ES6xxx - black screen with backlight on.

in Troubleshooting TVs and Video Sources

05-09-2023, 10:32 AM
Re: Samsung UE/UN55ES6xxx - black screen with backlight on.

OK...have taken the measurements....there are 2 connectors (have added the photos below) and the wired pins are marked R+/- and L +/- from 1-4....have put in the range for the pins where the voltage is not constant....fluctuates during the measurement...

R1+: 340-365V
R1-: 295-320V
R2+: 295-320V
R2-: 250-275V
R3+: 240V
R3-: 200V
R4+: 200V
R4-: 150V

L1+: 205-230V
L1-: 0V
L2+: 250-275V
L2-: 205-230V
L3+: 105V
...

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croupier36 replied to Samsung UE/UN55ES6xxx - black screen with backlight on.

in Troubleshooting TVs and Video Sources

05-08-2023, 01:26 PM
Re: Samsung UE/UN55ES6xxx - black screen with backlight on.

Adding some photos of the screen....hope it is clearly visible......

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croupier36 replied to Samsung UE/UN55ES6xxx - black screen with backlight on.

in Troubleshooting TVs and Video Sources

05-08-2023, 05:54 AM
Re: Samsung UE/UN55ES6xxx - black screen with backlight on.

Hi....sorry to steal the tread....but just got a Samsung UE55ES6100 that works OK...apart the top half of the screen which is dark....

I guess this is an issue with the backlight...anyone familiar with this model? Do I have to open the panel completely to reach the backlights for testing or are there other ways to make sure/test that the issue is actually there?

BTW....in this models the backlights are LEDs or?

Thanks!

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