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Old 09-19-2013, 10:36 PM   #41
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Default Re: LCD TV and Monitor basic troubleshooting guides

SONY TV boards cross ref.
http://elektrotanya.com/?q=hu/conten...assis-crossref
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Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956

Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999

Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl

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TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809
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Old 09-24-2013, 03:40 AM   #42
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Exclamation Re: LCD TV and Monitor basic troubleshooting guides

acer AL1914 b.green light on and show display blinking.power supply is working 5v,18v,is ok but HT road continously blinking,plz give me solution
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Old 09-24-2013, 03:43 AM   #43
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Exclamation Re: LCD TV and Monitor basic troubleshooting guides

[QUOTE=budm;305956]I cannot find the original post so this is the new post that I will have it liked to my signature file. It will be good if it can be on the sticky.

Notes: When make voltage measurement in the DEADLY Primary (HOT) side, the negative leg of the LARGE filter cap will be the ground ref.
The chassis will be the ground ref for the Secondary (COLD) side.
You should at least plug the unit you are working on into the GFCI outlet for safety.[/QUOT.Eacer AL1914 b.green light on and show display blinking.power supply is working 5v,18v,is ok but HT road continously blinking,plz give me solution
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Old 09-24-2013, 03:45 AM   #44
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Exclamation Re: LCD TV and Monitor basic troubleshooting guides

[QUOTE=kashif ur rehman;375748]
Quote:
Originally Posted by budm View Post
I cannot find the original post so this is the new post that I will have it liked to my signature file. It will be good if it can be on the sticky.

Notes: When make voltage measurement in the DEADLY Primary (HOT) side, the negative leg of the LARGE filter cap will be the ground ref.
The chassis will be the ground ref for the Secondary (COLD) side.
You should at least plug the unit you are working on into the GFCI outlet for safety.[/QUOT.Eacer AL1914 b.green light on and show display blinking.power supply is working 5v,18v,is ok but HT road continously blinking,plz give me solution
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Old 09-24-2013, 03:46 AM   #45
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Default Re: LCD TV and Monitor basic troubleshooting guides

acer AL1914 b.green light on and show display blinking.power supply is working 5v,18v,is ok but HT road continously blinking,plz give me solution
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Old 09-24-2013, 03:59 AM   #46
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Default Re: LCD TV and Monitor basic troubleshooting guides

acer AL1914 b.green light on and show display blinking.power supply is working 5v,18v,is ok but HT road continously blinking,plz give me solution
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Old 09-26-2013, 12:48 PM   #47
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Default Re: LCD TV and Monitor basic troubleshooting guides

Hey i have a LG 42Lk450 and we replaced the power supply and now it comes on the light turns blue but i get no sound/no picture can you guys help me troubleshoot the possible problem ive read some guides but their for different TV's
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Old 09-26-2013, 12:52 PM   #48
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Default Re: LCD TV and Monitor basic troubleshooting guides

Quote:
Originally Posted by budm View Post
Hey i have a LG 42Lk450 and we replaced the power supply and now it comes on the light turns blue but i get no sound/no picture can you guys help me troubleshoot the possible problem ive read some guides but their for different TV's
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Old 09-26-2013, 02:53 PM   #49
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Default Re: LCD TV and Monitor basic troubleshooting guides

Please start a new thread with the make and the model number of the TV so we can help you better.
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Old 09-27-2013, 10:06 PM   #50
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Default Re: LCD TV and Monitor basic troubleshooting guides

I Have a Vizio VX552XVT and most of the bottom half of the screen is darker than the top half. It fades to a darker shade but still displays a picture. The backlight inverter board has a red light on it that flashes on and off continuously. The screen will flicker sometimes as well and the red light will go on and off with the screen flicker and make a cracking sound when it does it. Could this be a bad inverter board?
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Old 09-27-2013, 10:09 PM   #51
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Default Re: LCD TV and Monitor basic troubleshooting guides

Please make the new thread for the TV you are working on, this thread is for info only.
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Old 09-30-2013, 10:19 PM   #52
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Default Re: LCD TV and Monitor basic troubleshooting guides

LG 37lc7d tv not responding to the remote unless you plug a headphone jack into the remote in port & remove it. Also, the setup screen flashes on & off when the tv does work.

Any suggestions??

Thanks
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Old 09-30-2013, 10:28 PM   #53
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Default Re: LCD TV and Monitor basic troubleshooting guides

Please create new post for your TV.
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Old 10-01-2013, 09:11 PM   #54
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Default Re: LCD TV and Monitor basic troubleshooting guides

Greetings,
My question is I have an LG 37" lcd tv that will not respond to the remote control unless I first stick a small headphone plug (pin?) into the back panel of the TV's "remote in" hole-(jack). This seems to reset the tv & then it works fine until I shut it off & leave it off overnight.

The second problem-(possibly related) is that when the tv is working the "setup" screen will flash on & off.--(This gets annoying).

I'am wondering if anyone can help me diagnose what the problem(s) are?

Thanks,

John
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Old 10-02-2013, 12:14 AM   #55
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Default Re: LCD TV and Monitor basic troubleshooting guides

Frequency counter for troubleshooting.
http://www.badcaps.net/forum/showthread.php?t=31410
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Old 10-25-2013, 07:30 PM   #56
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Default Re: LCD TV and Monitor basic troubleshooting guides

Need LG flat tv help
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Old 10-25-2013, 07:31 PM   #57
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Default Re: LCD TV and Monitor basic troubleshooting guides

Screen distorted
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Old 10-29-2013, 12:13 AM   #58
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Default Re: LCD TV and Monitor basic troubleshooting guides

Great guide! Read it and learned a few things. Just added it to my collection! Thanks
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Old 11-04-2013, 06:00 PM   #59
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Default Re: LCD TV and Monitor basic troubleshooting guides

Power supply impedance
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Old 11-07-2013, 11:13 AM   #60
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Default Re: LCD TV and Monitor basic troubleshooting guides

Notes on SAMSUNG EEPROM:
http://www.badcaps.net/forum/showthr...044#post389044
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