20 Most Recent Samsung LE40R73BD 40 in. HD-Ready LCD Television - Page 8 Questions & Answers

hi,

your lcd ip board (power board) capacitor had already exhusted. got to replace the ip board

Hi I am vortash .. there is a modification kit available for this tv and available from ebay priced about $50 0r £30 depending on your location . It is the start up driver circuit that needs these components on the power supply if you are competant to attempt this .However if not then I suggest that you take it to a local enginner for a free estimate he will at least be able to tell you the fault . regards Vortash

samsung will do a free repair i had the same fault and they fixed it fir free give them (SAMSUNG) a call.it is a known fault

it it a known fault with 4 capasitors mine was the same .phone samsung for a free repair as they know about this and are doing free repairs i did

samsung will fix it free of charge .i had the same fault with mine it is 3-4 years old .phoned samsung and they fixed it for free

Are you convinced that all cables are correctly connected, also to the electricity. The scart cable(s) are properly in place.
Try to turn the TV off the next time it shows a mind of its own. Disconnect it from the electricity, turn off any extra units that could be attatched to it. Let the TV rest for ,2-10 minutes suit my appliances well. Then start with cables and connections in reverse order. This has oftrn worked for me I havebecome more patient as the years goby.

Hello,

This means absolutely no color - equivalent to a black and white picture. Not even a hint of color.

First, confirm that the source is actually in color - try another channel or input device.

Next, check the settings of the color control - it may have accidentally been turned down. If your TV has some kind of automatic picture mode, try turning if off and adjusting the color control. Try adjusting fine tuning if you have such a control and the problem is with a broadcast or cable transmission.

At this point with a confirmed color signal source, there is a problem with the chroma circuitry.

Note that to the average person, the obvious question becomes: is my color picture tube bad? The answer is a definitive NO. It is virtually impossible for a defective CRT to cause a total loss of color. A defective CRT can cause a lack of a primary color - R, G, or, B or a short between two colors which will mess up the color but is not likely to result in a black and white picture.

Some possibilities in no particular order:

Weak signal or defect in tuner/IF causing loss of signal strength.

Coler killer set too high (internal control) if it has one.

Defective part around the chroma chip/circuit. Faulty color oscillator.

Bad connections in area of chroma chip/circuit.

Defective chroma chip (don't suspect this first just because it is probably very expensive).

Try prodding the main board around the chroma chip with an insulated tool to see if you can make the color come and go.

I had one set where a $.02 resistor decided to open up causing just this problem - perfect BW picture, no color. Another had a coil with a broken wire.

Hello,
you can fix this by opening the back cover of the television to check for cold soldering, if found you can solder if you have the skill to that , but it doesn't still work.
More than likely this will be down to your Y Sustain board has gone faulty, when the back is off your TV it is on the left hand side and will probably have a fuse that has blown, replacing the fuse will not solve the problem as it is the IMP under the heatsink that has gone faulty.
You should get the part number of the board and Google or Ebay for a replacement.
Hope this help

Hello,
Try connecting TV to cable direct also try unplugging both converter and TV for wile like 5 mins plug both back in see if TV and converter sync.
But if it still doesn't work...

More than likely this will be down to your Y Sustain board has gone faulty, when the back is off your TV it is on the left hand side and will probably have a fuse that has blown, replacing the fuse will not solve the problem as it is the IMP under the heatsink that has gone faulty.
You should get the part number of the board and Google or Ebay for a replacement.
Hope this help

there is a problem on your inverter board and the cold cathode lamp.The inverter board is the supplying high voltage supply to the cold cathode lamp.This cold cathode lamp is the illuminating the screen in which the the picture will appear once cold cathode is lit.here is a link where you can buy the parts.. Normal 0 MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman";}

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:Good luck hope this helps you..
please rate my help

http://tv.manualsonline.com/manuals/mfg/samsung/samsung_le40r73bd_le40r73bdxxef.html

try to change the stantard from the channel setting menu(bg-dk etc.)

Your particular TV does not appear to have a "reset" mode to return to default (factory) settings. I can only assume that you are trying to get the picture back to "normal".

To do this grab your remote, press the "menu" button then select "picture' using the up and down buttons. Then press "enter" again and select "mode" this is where you can change the size, aspect ratio and etc. of your picture. Use the up and down buttons to select 16 by 9 format or "standard" if it says that in the menu. The image I have is too small for me to read exactly which setting it should be at. At least this is where you change those options I am pretty sure you will know which setting by checking the video. If it's still wrong then try some of the other "modes" and check again.

Zashiban

More than likely your backlight inverter board went dead

Defective lcd panel

defective panel

So your screen does not have an HDMI Input? What model is it?