mugunthans
Member
Last Activity: 03-02-2024, 10:50 PM
Joined: 12-02-2016
Location: Alberta
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I'm seeking help to identify the component rather replace the main board... -
Toshiba 46G300u1-No standby
Dear All,
Greetings...
My friend requested to fix his faulty Toshiba LCD TV model #46G300U1 (461C2H51L12 Rev:1C TD46T).
When I plugged it to a wall socket the front Toshiba logo white LED flash once.
I have extended the 5v with a resistor to Inv pin and backlight is good.
I checked the voltages in power board P802 as below and attached the photos for reference.
BIOS chip above CPU has VCC 3.3v
PSU P802 [TABLE="border: 0, cellpadding: 0, cellspacing: 0"]
[TR]
[TD="width: 64"]Pin#[/TD]
[TD="width:... -
Can you share the status of the replacement ?
I'm having the same problem. 1 set of 12 LED turning off, It cycle for 3 times and protection mode shuts down the other 2 set of 24 LEDs but the picture stays ON (checked with flash light)...Leave a comment:
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Re: LC-32LE185M no led indicator
It could be BAUD Rate issue for garbage output. Try different speed and check (usually default 9600)....Leave a comment:
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Samsung UN40F6400 No Picture Bad T-Con or Panel!!!
Dear all,
I have Samsung TV, which reboots continuously and I opened the TV and checked for loose connection - disconnect and reconnect all cables.
When I power ON and noticed that its entered into Burn mode (RED/GREEN/BLUE) screen and I turned off and checked the cables again but this time it turned into white screen only. No matter how many times I restart the TV the result is same. But Sound is OK.
Needed your help and expert advise, whether it is the TCON faulty or Total Panel Failure??
TV Model: UA40F6400
T-Con Model: BN41-01939B
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Re: LG 47LB6500.ATR - No Picture/No Back light but has standby voltage
Any body has a source code ?...Leave a comment:
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Re: LG 47LB6500.ATR - No Picture/No Back light but has standby voltage
Is there any pre-programming required in Micro Controller Chip before fix into board or it is Plug n Play ?
IC3000 - Renesys R5F100GEAFBLeave a comment:
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Re: LG 47LB6500.ATR - No Picture/No Back light but has standby voltage
May be!!! but since IC3000 dead, can come to a conclusion after the replacement. Also there are chances that the HDMI diode burnt to protect Processor.
Fingers cross until replace MICOM IC......Leave a comment:
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Re: LG 47LB6500.ATR - No Picture/No Back light but has standby voltage
I'm thinking the same but would like to hear some experts guidance....Leave a comment:
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LG 47LB6500.ATR - No Picture/No Back light but has standby voltage
LG 47LB6500.ATR - No Picture/No Back light but has standby voltage
My living room TV kaput after lighting storm along with Cable Set-top Box connected via HDMI-3.
So, with my little knowledge of electronics I thought of fix it by myself.
First, I searched forum for any case registered existing if anyone have same issue/symptom.
Found some few case near matching But not really the same !!!
Now decided to open a new thread.
Brand: [COLOR="Red"]LG[/COLOR]
Model: 47LB6500.ATR
Panel: LC470DUH (FG)(P2)
Main... -
Re: Philips 32PFL1335 No LED Backlight
i'm thinking to add LED driver board...any recommendation please......Leave a comment:
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Re: Philips 32PFL1335 No LED Backlight
EC10 reading jumps upto 15v and back to 13v. Full read picture attached....Leave a comment:
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Philips 32PFL1335 No LED Backlight
The issue just pop-up while running normally... all of a sudden display went off... but still sound works... used a flash light and could see picture so Panel / TCON status is Good also I open the Panel and tested each LED and all Good. so issue should be with in LED driver.
Philips 32PFL1335 (LG panel K320WD2)
I have attached the picture of boards and SCH from chinese version.
DMM reading
Vin - 5v
EN - 3.3v
VLED+ 13v
Gate - 0v
CS - 0v
EC10 - 13v
D10 - 13v
Q3 - Source - 13v
Q3 - Gate - 0v
Q3 - drain... -
Re: Samsung UN40F6400 standby LED blink wont turn ON
My Apologies...Its 580Ω...Leave a comment:
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Re: Samsung UN40F6400 standby LED blink wont turn ON
Not all the LED 7 strips failed...
First 3 is working constant full bright.
Next 2 flicker like flash and try to glow slowly and next 2 setup start flicker try to glow full bright and goes off last 4 dtrip...Same cycle repeat.
I have attached the photo in my previous post.
The resistor reading is (80ohms).
In fact i was waiting for your advice from my first post..
Special thanks to you...Last edited by mugunthans; 07-10-2017, 12:13 PM.Leave a comment:
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[SOLVED] Re: Samsung UN40F6400 standby LED blink wont turn ON
I got some local expert advise..which is to replace SMD resister RS802 (10R0 - 10 Ohms) and Youtube channel also confirmed the same.
[URL="https://www.youtube.com/watch?v=nEzBdUTpe24&t=567s"]https://www.youtube.com/watch?v=nEzBdUTpe24&t=567s[/URL]
but I could not source SMD...so I replaced it with normal Quarter watt resister...and Its working
Thank you very much for your valuable time and advise.[SOLVED] Re: Samsung UN40F6400...Leave a comment:
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Re: Samsung UN40F6400 standby LED blink wont turn ON
Yes, 4/5 - swapped with 1/2 and 6/7 swapped with 1/2 - same effect (1/2/3 constant light UP and rest flicker)- Hope LED strips should have no issue....Leave a comment:
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Samsung UN40F6400 standby LED blink wont turn ON
Its time to get expert help to fix my TV as its almost dead !!!
Its Samsung UN40F6400 and power board BN44-00622D
The problem is - When power up the TV - standby LED blink twice for 5 Times and relay click but not ON and cycle continue...
Based on advise from other thread on this forum and tested the below.
1. Disconnected Main board cable 20Pins (CNM803)
> LED backlight ON for half of the screen and half of screen flicker. Tear down the LCD panel and diffuser, found only top 3 Strip light UP and bottom 4 strips (2x2) flicker. So, removed... -
Re: New Members - please post your introductions here
hello all...
I studied Engineering in Electronics but get into networking field and playing around with routers... I joined this group more than year ago while google for some stuff and got this forum, but did not get a chance to introduce myself...I'm poor in story writing ..so cutting shot...
I had just received a Samsung LED UN40F6400 from a friend that needs repair. with my own interest and curious i would like give a try to repair the TV.
Hope I get better support from mates...
...Leave a comment:
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