Re: Lg plasma 60pa5500 picture issues
Thanks for helping I'll make the Vs adjustment
Thanks for helping I'll make the Vs adjustment
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Re: Lg plasma 60pa5500 picture issues
Here is a LG cheat sheet I use.Attached FilesComment
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Re: Lg plasma 60pa5500 picture issues
-Vy and Vsc must be measured *across* the components marked -Vy or Vsc. Not to anything else.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.Comment
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Re: Lg plasma 60pa5500 picture issues
Shinju- if you are referring to the two other pots on the y-sus board below the -VY and Vsc then unfortunately yes I thiught I was just tighting up a screw when I first installed the new board. which was done prior to finding this forum.
Tom- Sorry for my lack of understanding but what do u mean by "across". I was able to get correct reading on the Vs and Va because the test point was clearly out lined on the board. Is the picture of the y-sus board clear enough that you or someone could point out the proper place to test the Vsc and -Vy. Again sorry for my inexperience with this.
Thanks for the continued help from everyone
NathanLast edited by Nrollins04; 01-27-2015, 08:51 AM.Comment
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Re: Lg plasma 60pa5500 picture issues
By across, I mean red lead on one lead, black on the other lead, on the other side of the device. It doesn't matter which lead each is on but they need to be different.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.Comment
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Re: Lg plasma 60pa5500 picture issues
I am not sure how you would re-set those SET pots with out a o-scope. From what I read and understand about them that using a scope is crucial to tuning those.
Tom66 might be able to shead light on those but I have never had to adjust those 2 pots.Comment
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Re: Lg plasma 60pa5500 picture issues
Ok thanksComment
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Re: Lg plasma 60pa5500 picture issues
I usually set them by eye (looking at panel for maldischarge etc), a scope is preferred but not necessary.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.Comment
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Re: Lg plasma 60pa5500 picture issues
Thanks for all the help guysComment
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Vizio e601i-A3 - Has Sound and Display, But No Backlight - Bad Power Supply Board or Bad LED Bulbs ?I was given this TV from my great uncle. He said it just wouldn't turn on one day out of nowhere, replaced the TV, and gave it to me to possibly fix and use for myself.
Upon bringing it home and plugging it up, it showed a standby light.
I powered it on and without a flashlight, the display showed the "V" but the lighting is very dim, but visible.
The screen seems to blackout and stay black, but with a flashlight I can see the display.
With my Playstation 4 connected via HDMI, and running a game I can hear sound.
Assuming... -
Hey guys great forum glad to have found it. I bought a Sony XBR 65X900C cheaply because it didn't work. No signs of life at all not even a light/led. All I hear is a brief high voltage sound when I throw the power to it.
Didn't see any obvious signs of damage so right away started checking voltages. This is what I see:
Power Board Connector that goes to Main board
CN6401
Pin 01 NC
Pin 02 NC
Pin 03 "BL_ON": 0V
Pin 04 "N/C"
Pin 05 "STBY 3.3V": 3.5V
Pin 06 "GND": N/C
Pin 07 "AC_OFF"... -
All left and right refers to looking from rear of TV (or looking from front with TV upside down)- TV came with vertical bars and no image. Found faulty TVS on left buffer board. Also replaced T-Con (may have damaged the original while hot air removing components, board has slight warp) and have full image but few horizontal lines on the screen. Some of the lines appears to be 2 pixel tall while others are 1 pixel tall.
- Disconnecting left and right buffer board potentially reveals problems on both sides with different signals (unless this T-Con require jumper like Samsung FB_TRDY1&3) Fault
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Hi everyone!
I happened several times, in the search for help from the web, to consult this very interesting forum.
So I decided to sign up and I intend to participate actively by making available my knowledge and experience on the subject, I'm a new user but at the same time I'm old in the sense that I have 4 decades of experience in repairing and designing electronics but above all I'm a great passionate about the subject.
Having said that I come to the gist of my post on the forum as the title suggests.
For my passion for technology I'm now collecting several... -
Starting this thread because Capkid doesn't seem to be reprogramming controlboards anymore (LG 60PZ950 with red maldischarge) and my game-plasma also has maldischarge (Hitachi 42PD3200). So I will grasp at straws to keep them running. I am extremely bad at throwing stuff away.
Is there any merit to this link?
Very short version: Specific caps seem to loose their capacitance and/or increase their ESR. This may cause the maldischarge. Replace them with better/bigger/newer ones and problem solved.
From the limited knowledge I have on the subject, I think...01-21-2020, 05:16 PM
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