Re: Toshiba 58L1350UC Backlight.
Changed T-CON board - no good result. I'm tired with this piece of garbage. No more patience and time to reanimate this dead body. Thanks to everyone for helping me.
tantogata
Member
Last Activity: 07-27-2023, 08:07 AM
Joined: 12-07-2022
Location: Thornhill
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Re: Toshiba 58L1350UC Backlight.
I've changed all led strips for new ones - not fixed, the same issue - short flash the screen and darkness.Leave a comment:
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Re: Toshiba 58L1350UC Backlight.
I've checked everything what I could. That's why I changed the power board - didn't help. Changed the main board - didn't help.Leave a comment:
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Re: Toshiba 58L1350UC Backlight.
I've checked every lines (each line consist of 11-12 leds). There is no voltage between + and - on the LED connector of power board.Last edited by tantogata; 03-10-2023, 09:31 PM.Leave a comment:
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Re: Toshiba 58L1350UC Backlight.
All 5 led lines light shine with led tester. No one single led died. When the TV is turning on LEDs is short flashing and that's it. After long period of time (a week and more) not operating the TV, it is turn on and works for long time (I dodn't know how long cause I've tried to turn off and on the TV but on second time turning the TV was failed).Leave a comment:
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Re: Toshiba 58L1350UC Backlight.
I've changed a main and power boards but the problem is still there. I've checked LED connectors, they are ok. All LEDs light well, I've checked them with my LED tester. Now I'm thinking to change T-CON board - the last board on the TV which I didn't change yet. If this not help to fix the TV it will be interesting.Leave a comment:
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Re: Toshiba 58L1350UC Backlight.
If I unplug the TV for a long time (several days), the TV is working untill next turn on/off. I've changed a powerboard but the problem is still there.Leave a comment:
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Re: Toshiba 58L1350UC Backlight.
Some guys recommend to measure voltage for LED strips between LB1- and LB1+ on the connector, the others between "ground" and LB1+. Who is right? I'm confused.Leave a comment:
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Re: Toshiba 58L1350UC Backlight.
I'm not sure, please clarify a question: I have 0 volts between LB1- and LB1+, LB2- and LB2+, and etc. (TV is on, disconnected LED wires). Is it normal? I think it must be around 120 volts like to between ground and LB1+, and etc.Leave a comment:
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Re: Toshiba 58L1350UC Backlight.
I'm confused, all symptoms tell that I have dead led strips but I've checked them with a backlight tester, no one was dead. Is it possible if even all led strips pass test they still have an issue?Last edited by tantogata; 12-20-2022, 01:37 PM.Leave a comment:
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Re: Toshiba 58L1350UC Backlight.
I've checked LED strips - work fine (125-130V. for 23 LED in one line, there are 5 lines, no one died, around 5,5V for one LED, is it OK?).
Measurements on LED connector (P803 on power board, from 0-1,5V. between LB1-/LB2-/LB3-/LB4-/LB5- and LB1+/LB2+/LB3+/LB4+/LB5+ with/without connection LED strips, power TV on). BUT if I put negative lead on ground and positive one on LB1+/LB2+/LB3+/LB4+/LB5+ I get 120V.
What I did: checked all diodes, LED strips, voltages on P803 connector. The diode (D201) is strange. When I'm checking on the board...Last edited by tantogata; 12-20-2022, 11:44 AM.Leave a comment:
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Re: Toshiba 58L1350UC Backlight.
Everything looks perfect
[url]https://imgur.com/a/VFDR5l6[/url]
355V. on C601 capacitor. The electrolytic capacitors around the P802 connector look like new.
Looks like the issue is in backlight strip. Right?Re: Toshiba 58L1350UC Backlight.<br ... strip. Right?Re: Toshiba 58L1350UC Backlight.
EverythingLast edited by tantogata; 12-11-2022, 02:46 PM.Leave a comment:
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Toshiba 58L1350UC Backlight.
Symptoms: turn the TV on - short white flash screen and black. Flashlight test showing an image on the black screen. Power light is on (green light). I've red a "A guide on how to troubleshoot 2 seconds to black" but before to start to follow this guide may be someone got the same experience with that model of the TV and give me some additional advice. Thanks.
P.S.
After moving (shaking) and didn't operate the TV for several days it starts to work properly for 10-15 minutes and go black screen again. -
Re: New Members - please post your introductions here
Hi everyone! I'm trying to restore old TV - Toshiba 58L1350UC. I hope I can find help here.Leave a comment:
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