Question about Samsung LE-32B450C 32" LCD TV

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HIGH RED COLOUR DISPLAY

The picture displaying ghost pictures, look like the red is too much.

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There are two parts to be suspected. T'Con board, and LCD panel. Contact any experienced service technician. The troubleshooting to this fault is very skilled work.

Posted on Nov 03, 2012

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Posted on Jan 02, 2017

SOURCE: red power light flashing but no picture

Ditto for Jan 13th with a Panasonic 50"!

Posted on Jan 14, 2008

  • 2 Answers

SOURCE: Hitachi 32LD6600 - When the

Hi i have this tv and last night the screen went black i can hear sound ok but no picture just a black screen, Also i can see dark
outlines /shadows of whats on the tv, can you tell me please what has caused this

Posted on Apr 21, 2008

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eex

Posted on Aug 10, 2008

SOURCE: Half part is display

replace ic

Posted on Sep 29, 2008

  • 18 Answers

SOURCE: Display Issue; Sound, but NO Picture!

if you have cable tv try unplugging and plugging in that cable if that doesnt work you might have a bad cable. check for damage along the cord or bends in the metal ends sometimes that can also be the problem

Posted on Jan 09, 2009

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Regza 5Toshiba) V55 TV - picture tinted red. First the picture went (sound ok), when I got the picture back by fiddling with contrast and colour settings, the picture was red. I've used the 'colour...


The fault is with its video output stage circuit. The fault is called "one color predominant' screen. In most cases, this might be to a loose solder terminals at the video output stage circuit board. This board can be located at the neck of the picture tube, will plugged on to it directly. If you wish to get more details, check this link. http://electronicshelponline.blogspot.com/ Selecting the view option, either to Mosaic /Timeslide, can be selected by the drop-down list, by the top left of the display window, will make surf easy. You can also do a search, by type in the brand name / model number / IC used, in the search box at the top right of the display window.

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Screen display colour is red


Check for any loose solder terminals at the video output board. This board can be located at the neck of the picture tube, plugged directly to it. Check all the solder terminals there. Re-solder all the suspected solder terminals, especially to the red out transistor leads soldering. Check the load resistor to that transistor for open circuit. Check this link for more details. It has details about, one color predominant screen faults and rectifications.

Jan 15, 2013 | Televison & Video

1 Answer

I have seen a problem in my tv is that there is no green colour display in crt. only two colour ( i.e. Red and Blue) or combination may be display. Pl. look into this matter , replay soon


Your problem may related to the green output or driver stage in your tv. Usually green calour is not tranmitted, only blue and red colour informatein are comming from transmitters. Green colour information is regenerated inside the tv by matrix network. If the matrix get damaged no green colour will be displayed. To check first; whether the TV colour picture tube's green gun is right or not. For that you must connect a resistor of value more than 470k 2W, to the green cathode of the picture tube base to earth. The connection should be done causiously, not for a long time. It is advised to do in intermittantly with just touches. When you touch the green cathode with the resistor with one side of it earthed, a green flash must come on the crt. You can do this test for red and blue too. If there is no green flash, or light picture tube may be faulty. It is a very rare case. You must check the volltages of the other two cathodes [red and blue]. The voltage at green cathode must be almost the same as other two.
Just check the green output transistor for open. If it is open, voltage at green cathode will be high. Also check the base voltge of the green output transistor. It should be around 2.5vDC. You can compare the base voltages of the other two transistors with green drive base voltage. If there is no base voltage, the fault should be in the matrix section. It is inside an Ic. Philips usually uses TDA series Ics in chroma section. Check the Ic pin voltages according to service manual and try to rectify the fault. It needs a technical knowledge and skill.

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Problem with a colour display on Hisense tv


If your picures are all purple it means that the green colour is missing. TV colour is made up by mixing Red, Green & Blue. Removing Green leaving Red & Blue makes purple. Study the green colour circuit for a fault and confirm that the green gun inside the tube is working.

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Elonex webbook displays anything black as red


You could have a faulty inverter or a CCFL lamp, 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.
Check out
www.lcdparts.net
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1 Answer

Red in picture creates a ghost picture


Sounds like a loose connection in the convergance amp ic's

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Color Problem:


in Monitor CRT Red-Blue-green cathode guns are there.. Mixing of these colour we can get the original colour chrominace technique. if any of the colour gun is faulty we would get more REad or blue or green picture. Measure RGB voltages. you can verfify which gun is faulty. if then check RGB processing circuits. Else there might be problem Chrominance colour decoder system. Contact service centre

Jan 09, 2007 | Samsung SyncMaster 551 15" CRT Monitor

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