Question about Sony PFM-50C1 50 in. Plasma HDTV

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Sony PFM-50C1 Fuzzy Dim Display

I am trying to repair a Sony PFM-50C1 plasma TV. The display with any input is fuzzy and dim. The picture can barely be made out. I have verified that the connections and line input are not the cause of the problem. I am technically capable and able to repair the electronic components inside. I just need a push in the right direction. Thanks.

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  • chandra_venk Nov 08, 2008

    Fuzzy and dim - The brightness comes and goes randomly at varying intervals. Looks to me like a loose connection inside or capitance problem.

    Please call me at 818.749.8314



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Just want to let you know that the problem you are having is a bad X board. This board may not be available from Sony, because it is sold as part of the panel

Best regards

Posted on Dec 06, 2007


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Posted on Jan 02, 2017


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I have a 65" lg plasma tv and I recently replaced s few capacitors that were bad and the tv worked beautifully, yesteddy morning I was watching and suddenly the tv went dim and fuzzy like snow but I still...

Fault with the main power supply regulator board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts.
It will be best to replace the power supply regulator board as card basis rather than making "Surgery" to it; which usually will make loss for both money and time. Even though you can make it right, it will cost around an amount equal to the cost of a new board; including the cost of (spare parts + service charge) More to say, most of the spare parts to it will be difficult to get from open electronic spare part market. This is true to most of the flat panel TV power supply boards; irrespective of its brand and screen size.
After replacement of the power board, Va&VS voltages are to be set according to the silk screen; can be located at the display panel, and it is a must for plasma displays.

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Bought a Wii and using the standard cables it played great on a new 50' Panasonic Plasma as well as on our 2 year old 32' VIZIO LCD. Just upgraded to a 46' Sony LCD (W series) and the Wii looks terrible...

The Wii can display on a HDTV, but keep in mind the output is only 480p. It is not true high definition, and it will only display this using a component video cable. There shouldn't be a difference with LCD and plasma.

You will also need to go to the display settings to force the Wii to display in 480p.

Try a different input (safe to assume your Sony has multiple?) and see if it is that specific input. Also, try a different device like a DVD player or VCR and see if you get the same result.

Good luck.

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My display is pink & fuzzy.

You could have a faulty CCFL lamp or inverter, To determine if you have a LCD screen, inverter or video card problem, read this and follow these instructions.
Defective CCFL backlight, it may have the following symptom: Screen flashs on red/pink and off. Picture stays on in red and slowly be come normal. Picture flickering with dim display or appear black. Picture flickering on and off. All these symptoms indicate that the LCD backlight lamp (CCFL Lamp) has reached the end of the life and all you need to do is replacing the CCFL lamp.
Connect an external monitor to your laptop and power the monitor up first then the laptop, if you see the normal Windows images then the video card and laptop is OK and the problem is definitely the backlight. Dim image and/or dark display on the laptop's LCD screen indicates a faulty LCD backlight and it could be the inverter that supplies high voltage to the CCFL lamp or it is the CCLF lamp is nearly burnt out or burnt out, most likely this is the case.
The inverter can be replaced easily but the CCLF lamp is more time consuming and requires soldering skills.
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for parts, repair service and DIY info.

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I got white vertical line running down a plasma display panel . they are close together that you cant even see on that side of the tv. on a closer inspection they are blue-green-red-blue-green-.... but...

A vertical line running down a plasma display can be caused by :

faulty buffer module.

Fauly sustain card.

Faulty plasma display.

Try unplugging power cable and see if this helps, if it does not , then you will need to call a technician.

In that case call the support number listed on your owner manual.

If warranty has expired, ask for a warranty extension, if available. this is cheaper than repair cost, and will cover the repair.

Jan 04, 2009 | Sony PFM-50C1 50 in. Plasma HDTV

1 Answer

I have a sony pfm-42b1 plasma tv with 2 vga inputs an 1svideo input.. i want to connect my ps3 hdmi cable to the vga input. i purchased the cable but nothing shows.. thanks for your help

you should change it from hdmi to cable. You can do it only on a hdmi tv when you do that you can use it for the pfm-42b1e because i had the same problem too. when you plug your ps3 to a hdmi tv you go to settings-display settings- video output settings than you change it to av multi. After you do that you can use it on pfm-42b1e

Dec 16, 2008 | Sony PFM-42B1 42 in. HD-Ready Plasma...

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sir do a power reset, turn off the tv, unplug the tv from the electrical source, wait for about a minute then turn the tv again, if the problem still exhibit call 1800 222 7669 thats for sony customer service,.

Oct 30, 2008 | Sony PFM-50C1 50 in. Plasma HDTV

1 Answer

Sony plasma picture is blurry and makes a popping noise

Hello MDay02,
Your problem maybe your X board which is the same as PCB X sustain. Changing the fuse in this case may NOT solved your problem. If you are handy, you may be able to change the board yourself. We have most Sony X board in stock. If you purchase the board from us, we will walk you through the installation process for FREE over the phone.

Mar 17, 2008 | Sony PFM-50C1 50 in. Plasma HDTV

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Sony plasma


Feb 19, 2008 | Sony PFM-50C1 50 in. Plasma HDTV

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Vertical Black line on display

Rakesh, You have a "dual scan" panel, this is why the line only decends down the screen half-way. This could be a connection problem on the buffer board which causes loss of the drive signal only to that part of the display which it is connected to. The vertical address buffer will be located on the top rear of the display, use great caution in inspecting these cables and connectors. If the integrity of the cable and connector is good the panel itself may be bad due to the drive IC being located on the ribbon cable attached to the panel body. this is better known as COF or, chip-on-film technology. I hope this helps you. Good luck. Joe Weibel CustomElectronics.Org

Jan 28, 2007 | Sony PFM-50C1 50 in. Plasma HDTV

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