Re: Toshiba 32W1343DG No Backlights, Flashlight Test OK, TV is already broken
Thanks for your replies and congratulation for sucessfully repairing. My repaired TV (June 2016) is still working fine, i use it daily.
eltrash
Member
Last Activity: 12-18-2020, 06:33 AM
Joined: 06-14-2016
Location: Germany
-
Re: Toshiba 32W1343DG No Backlights, Flashlight Test OK, TV is already broken
Yo, thank you for this hint.
@ReeceyBurger123: Is your Techwood TV from stacking video still working?Leave a comment:
-
Re: Toshiba 32W1343DG No Backlights, Flashlight Test OK, TV is already broken
Hello, good news. The repair was successful with the stacking method.
The TV works wonderful. The illumination is very even, there are no spots although there are LEDs of a different model. Color temperature and luminosity are identical
Thanks again for your help, especially on ReeceyBurger123...Leave a comment:
-
Re: Toshiba 32W1343DG No Backlights, Flashlight Test OK, TV is already broken
ok, thank you for confirmation but i cannot wait 60 days for delivery. In germany those LEDs are not available, only as complete stripe arrays for Stacking method
But this are not the same LEDs like in my TV. Is it a problem if i would buy this for example?
[url]http://www.ebay.de/itm/Samsung-LED-TV-LED-Bar-LED-Backlight-Strip-BN96-30454A-kurz/322132302339[/url]
Sorry for my many questions
thank you for your patience
lg eltrashRe: Toshiba 32W1343DG No Backlights,Last edited by eltrash; 06-15-2016, 03:16 PM.Leave a comment:
-
Re: Toshiba 32W1343DG No Backlights, Flashlight Test OK, TV is already broken
sorry for the stupid question: Are there more than 2 solder pads per LED?
EDIT: Oh, there is a big and a small pad, i understand :-) therefore it is important to pay attention to the identical LED layout...Last edited by eltrash; 06-15-2016, 02:24 PM.Leave a comment:
-
Re: Toshiba 32W1343DG No Backlights, Flashlight Test OK, TV is already broken
ok, thank you for your help. The resistor solution is my backup strategy.
At first i want to order some fitiing LEDs but i don't find such 0,5w high power LEDs with only 3x3mm dimension. If i calculate correct they should have amperage of 150 mA.
I only find 0,2W (60 mA) smd plcc2 2835 LEDs with dimensions: 3,5 x 2,8mm
Can you give me short advise how i can find correct LEDs?Last edited by eltrash; 06-15-2016, 11:38 AM.Leave a comment:
-
Re: Toshiba 32W1343DG No Backlights, Flashlight Test OK, TV is already broken
thanks my friend.
I have great news, the voltages of the power supply are fine. After power on the TV the LED Output boosts to about 102 volts and than it drops to 22 volts.
This should be fine, right?
Then I have identified the bad LEDs with my multimeter and your great messure method. All exept one per row are glimming. One has open circuit, the other one has short circuit.
I bridged the open LED and see what happend...
Yeah, it...Last edited by eltrash; 06-15-2016, 10:36 AM.Leave a comment:
-
Re: Toshiba 32W1343DG No Backlights, Flashlight Test OK, TV is already broken
I am afraid that i don't find a stackable LED Bar
If i choose the single LED swapping methode shown in this video [url]https://www.youtube.com/watch?v=Bf5T2wwtydY[/url]
Which LEDs I have to choose? In the comments of the video is this one menthioned:
[url]https://www.superbrightleds.com/moreinfo/component-leds/pure-white-5050-smd-led-120-degree-viewing-angle-6000-mcd/316/1248/#/tab/Specifications[/url]
but the author says they are a little bit to big...Leave a comment:
-
Re: Toshiba 32W1343DG No Backlights, Flashlight Test OK, TV is already broken
i hope it too but i'm confident to find it or them
Can i take LEDs from this bar for replacement dead LEDs with your "Stacking method"
[url]http://www.ebay.de/itm/Samsung-LED-TV-LED-Bar-LED-Backlight-Strip-BN96-30454A-kurz-/322132302339[/url]Re: Toshiba 32W1343DG No Backlights,...your "Stacking...Last edited by eltrash; 06-15-2016, 06:18 AM.Leave a comment:
-
Re: Toshiba 32W1343DG No Backlights, Flashlight Test OK, TV is already broken
@ReeceyBurger123, Thank you very much for your very interesting video. It seems to be the same parts like my TV
I think i made a mistake with measurement LED booster voltages. I have to measure the black and red pin individually each to ground but I have measured both pins together. I will check the voltages again soon as possible.
@dick_barton Thank you for shematics. If the voltages with the right messurement method will fail, then i will check the led driver chip.
...Last edited by eltrash; 06-15-2016, 04:48 AM.Leave a comment:
-
Toshiba 32W1343DG No Backlights, Flashlight Test OK, TV is already broken
Hello from germany, i have read many threads and have learned a lot. Now I want to open my own thread because i have an issue with my Toshiba TV.
My Problem: No backlights (The LEDs also not light shortly when power on, they shine never), but Flashlighttest was successful. So i can see the menu and messages.
The TV is already completely disassembled and I made high-res photos of all components. I hope dropbox galleries are allowed and ok:
[url]https://www.dropbox.com/sh/ed2d3b3zr4el5ep/AACkZx-2iWW9TQRclbrib1L3a?dl=0[/url]
Here the data...Last edited by eltrash; 06-15-2016, 02:54 AM. -
Re: New Members - please post your introductions here
Hello from germany, i have read many threads and have learned a lot. Now I want to open my own thread because i have an issue with my toshiba TV.Leave a comment:
No activity results to display
Leave a comment: