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Search: Posts Made By: alfredomfr1
Forum: Troubleshooting TVs and Video Sources 05-04-2022, 02:25 PM
Replies: 8
Views: 351
Posted By alfredomfr1
Re: TV Plasma LG 60PN5000 ZSUS 15v missing

Yes, it is. Thanks for your help.
Forum: Troubleshooting TVs and Video Sources 05-04-2022, 09:49 AM
Replies: 8
Views: 351
Posted By alfredomfr1
Re: TV Plasma LG 60PN5000 ZSUS 15v missing

D603 shorted
After replace D603 TV works well but instead of measuring 15v it measures 17.8v
Forum: Troubleshooting TVs and Video Sources 04-29-2022, 03:20 PM
Replies: 8
Views: 351
Posted By alfredomfr1
Re: TV Plasma LG 60PN5000 ZSUS 15v missing

There is not green light on the control board and the TV red light is blinking
Forum: Troubleshooting TVs and Video Sources 04-29-2022, 03:16 PM
Replies: 8
Views: 351
Posted By alfredomfr1
Re: TV Plasma LG 60PN5000 ZSUS 15v missing

3ohm R251 Open, Replaced.
Now I have 15v but fluctuating to 16v and 15v and a metallic sound like tin, tin tin. All other voltages fluctuating a little bit but in range.
Forum: Troubleshooting TVs and Video Sources 04-29-2022, 12:30 PM
Replies: 8
Views: 351
Posted By alfredomfr1
Forum: Troubleshooting TVs and Video Sources 04-29-2022, 11:26 AM
Replies: 8
Views: 351
Posted By alfredomfr1
TV Plasma LG 60PN5000 ZSUS 15v missing

All Voltages are OK except ZSUS 15v.
YSUS board disconnected still 15v missing.
ZSUS was replaced: 15v missing.
Any help will be appreciated
Forum: Troubleshooting TVs and Video Sources 10-23-2021, 10:18 AM
Replies: 2
Views: 529
Posted By alfredomfr1
Re: TV Samsung UN55KS800DFXZA: Lines on the screen

Just lines in the bottom of the screen that change with the image
Forum: Troubleshooting TVs and Video Sources 10-21-2021, 01:36 PM
Replies: 2
Views: 529
Posted By alfredomfr1
TV Samsung UN55KS800DFXZA: Lines on the screen

As the pictures show the screen have lines on the bottom, I try with the tape trick but didn't work.
I need help, please.
Thanks
Forum: Troubleshooting TVs and Video Sources 11-20-2020, 09:31 AM
Replies: 17
Views: 5,979
Posted By alfredomfr1
Re: Sony KDL-52ex700 and others 6 blink possible fix

IC 2904 it is IC6803 but pin 6 is not connected
Forum: Troubleshooting TVs and Video Sources 03-18-2020, 08:18 AM
Replies: 23
Views: 1,919
Posted By alfredomfr1
Re: Samsung UN55H8000AFXZA No Backlight, LED Strips OK

R_J You are totally right. IC replaced, TV working !!!.
Thanks to You, budm and Vinceroger69 for the appreciate help.
Forum: Troubleshooting TVs and Video Sources 03-17-2020, 01:06 PM
Replies: 23
Views: 1,919
Posted By alfredomfr1
Forum: Troubleshooting TVs and Video Sources 03-12-2020, 02:59 PM
Replies: 23
Views: 1,919
Posted By alfredomfr1
Re: Samsung UN55H8000AFXZA No Backlight, LED Strips OK

VCC: 11.92v
FET Q9951 Gate: 76v
FET Q9952 Gate: 16.7v
Forum: Troubleshooting TVs and Video Sources 03-12-2020, 01:50 PM
Replies: 23
Views: 1,919
Posted By alfredomfr1
Re: Samsung UN55H8000AFXZA No Backlight, LED Strips OK

Q9951 and Q9952 OK, R9988 and R9958 OK
IC 9951: NCP1034DG
10k R9972 and R9973 are OK when tested out but R9973 only read 68 ohm in the circuit. All components on the picture are OK
Forum: Troubleshooting TVs and Video Sources 03-06-2020, 08:57 PM
Replies: 23
Views: 1,919
Posted By alfredomfr1
Re: Samsung UN55H8000AFXZA No Backlight, LED Strips OK

I will check the FETs tomorrow, thanks to budm and R_J for your help.
Forum: Troubleshooting TVs and Video Sources 03-06-2020, 08:39 PM
Replies: 23
Views: 1,919
Posted By alfredomfr1
Re: Samsung UN55H8000AFXZA No Backlight, LED Strips OK

With my led tester, every string same voltage: 30v
Forum: Troubleshooting TVs and Video Sources 03-06-2020, 08:36 PM
Replies: 23
Views: 1,919
Posted By alfredomfr1
Re: Samsung UN55H8000AFXZA No Backlight, LED Strips OK

R_J I already open the screen and tested all the LED
Forum: Troubleshooting TVs and Video Sources 03-06-2020, 08:30 PM
Replies: 23
Views: 1,919
Posted By alfredomfr1
Forum: Troubleshooting TVs and Video Sources 03-06-2020, 08:15 PM
Replies: 23
Views: 1,919
Posted By alfredomfr1
Re: Samsung UN55H8000AFXZA No Backlight, LED Strips OK

CP811S: 387v remember I can see image in the dark screen
Forum: Troubleshooting TVs and Video Sources 03-06-2020, 07:57 PM
Replies: 23
Views: 1,919
Posted By alfredomfr1
Forum: Troubleshooting TVs and Video Sources 03-06-2020, 07:55 PM
Replies: 23
Views: 1,919
Posted By alfredomfr1
Forum: Troubleshooting TVs and Video Sources 03-06-2020, 07:16 PM
Replies: 23
Views: 1,919
Posted By alfredomfr1
Re: Samsung UN55H8000AFXZA No Backlight, LED Strips OK

1- Not backlight with the cable disconnected.
2- TV Chassis
3-

2 SD: 0.3v
4 STT: 0.2v
6 DATA: 0.1v
8 VSYNC_IN: 3.2v
10,12 LD: 3.2v
14 BLUONOFF: 4.97v
Forum: Troubleshooting TVs and Video Sources 03-06-2020, 05:42 PM
Replies: 23
Views: 1,919
Posted By alfredomfr1
Samsung UN55H8000AFXZA No Backlight, LED Strips OK

TV show image with the help of a flashlight but no backlight. I can confirm that all led are OK.

CNL802A
TV OFF
0v

TV ON
Pin 11 and 12: 16v
All others: 0v
Forum: Troubleshooting TVs and Video Sources 02-10-2020, 10:20 PM
Replies: 9
Views: 1,002
Posted By alfredomfr1
Re: Sony KDL-55EX640

I replaced with another of the same size
Forum: Troubleshooting TVs and Video Sources 01-05-2020, 04:08 PM
Replies: 9
Views: 1,002
Posted By alfredomfr1
Sony KDL-55EX640

This TV came with a defective LED, I fixed it, now is working but has a high frequency noise. When I touch a transformer leg (the yellow one on the right) the sound decreases.
Forum: Troubleshooting TVs and Video Sources 04-15-2019, 09:39 PM
Replies: 6
Views: 1,554
Posted By alfredomfr1
Re: Sony XBR55X900C Power Cycling

I already replaced that board for a new board and installed the update successfully, but the old one do not allow me to update because turn on and off every 5 to 10 second
Showing results 1 to 25 of 179

 
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