Question about Samsung CXM2785TP 27 in. TV/VCR/DVD Combo

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Samsung Flat screen 100hz tv - no power

Samsung WS28A116T ( 100hz flat screen CRT ) Power button on tv has no effect. Plug fuse changed and different plug sockets used but still no difference. Any ideas????

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Re: Samsung Flat screen 100hz tv - no power

My samsung flat screen tv have sound coming out but no display...anyway to check/help...

Posted on Aug 11, 2008

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Re: Samsung Flat screen 100hz tv - no power

I havee a 42in samsung flatscreenn whenn i turn it on it has no picture with a humming noisee?

Posted on Dec 03, 2009

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Re: Samsung Flat screen 100hz tv - no power

Was the fuse blown?? if it was then you may have a current limitor block resistor that could have opened up as maybe the bridge recifyers are bad. If you measure the voltage on the inside you should have about 145 to 160 vdc on the main filter cap. If thats good then your switching supplys not working andf your gonna need a schematic as well as a meter and possibly a scope and an isolation xformer to trouble shoot this set. If ytou dont have these things call in a good local repair senter to assist you with an estimate. Good Luck.

Posted on May 02, 2006

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Panasonic tv/DVD/VCR combination. Model no. PV-dF203. Has one flat color line in the middle of the screen. Everything else works fine. What is the problem and how expensive to repair?

The vertical deflection circuit is at fault.
it might be the power driving that circuit, the vertical circuit itself or the vertical CRT yoke is open.
Which problem it is would require someone to open it up and test each circuit. With the cost of repair shops, it might make sense to put your money towards upgrading to a newer flat panel set instead. You can also check your local classified sites since many people are giving away CRT TV's just to get rid of them.

Nov 07, 2013 | Combination Televisions

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Panasonic TV DVD/VCR combo turns on but right back off can hear the clicking on the inside .. screen does not even come on..

If you hear a clicking that is the relay which is a sign that the tv has partial power. The rest of the power supply is dead though. Usually it is the voltage rectifier and a wire wound resister maybe some burnt circuit traces. Many tvs lose their fly-back transformer and or the horizontal or vertical output transistor and a handful of electrolytic capacitors. Few people repair tvs these days and even fewer want to keep old cathode ray tube (CRT) types tvs anyways. How much for a new flat screen tv of similar size? Likely far cheaper than parts and labour for the other one.

Oct 16, 2013 | Panasonic Combination Televisions

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I have a technika flat screen / dvd player bough in April 2009. The TV green light will come on with both the remote and the button on the side of the TV however I have no picture or sound, just a black...

Chris, the problem could be almost any where. As a TV servicer, my course of action would be to test the voltage in the power supply. I would look for a bad capacitor in the power suppy. This capacitor may be bulged or skinned. You will need an ESR meter to locate a bad capacitor. A bad capacitor may look fine, when it is not. I have not worked on this model, I would certainly start with the power supply. Hope this clues you into a fix.

Jul 04, 2011 | Combination Televisions

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Thin white horizontal line across otherwise black screen


CAUTION: To prevent damage to the CRT phosphors, immediately turn down the brightness so the line is just barely visible. If the user controls do not have enough range, you will have to locate and adjust the master brightness or screen/G2 pots.

A single horizontal line means that you have lost vertical deflection. High voltage is most likely fine since there is something on the screen.

This could be due to:

Dirty service switch contacts. There is often a small switch located inside on the main board or perhaps accessible from the back. This is used during setup to set the color background levels. (On some sets, this is located on the CRT neck board and may be a jumper plug or other means of selecting service mode - not an actual switch.)

When moved to the 'service' position, it kills vertical deflection and video to the CRT. If the switch somehow changed position or got dirty or corroded contacts, you will have this symptom. Flip the switch back and forth a couple of times. If there is some change, then replace, clean, resolder, or even bypass it as appropriate.

Bad connection to deflection yoke or other parts in vertical output circuit. Bad connections are common in TVs and monitors. Check around the pins of large components like transformers, power transistors and resistors, or connectors for hairline cracks in the solder. Reseat internal connectors. Check particularly around the connector to the deflection yoke on the CRT.

Bad vertical deflection IC or transistor. You will probably need the service manual for this and the following. However, if the vertical deflection is done with an IC, the ECG Semiconductor Master Substitution guide may have its pinout which may be enough to test it with a scope.

Other bad parts in vertical deflection circuit though there are not that many parts that would kill the deflection entirely.

Loss of power to vertical deflection circuits. Check for blown fusable resistors/fuses and bad connections.

Loss of vertical oscillator or vertical drive signals.

The most likely possibilities are in the deflection output stage or bad connections to the yoke.
Hope it works well...

May 28, 2010 | Akai CFTD2083 20 in. TV/VCR/DVD Combo

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Model txl3676 Too many appliances on one plug. Instead of blowing a fuse in the house the tv Samsung made a poping noise and lost all power. I assume it was a fuse. I have taken the back off the TV but...

NEVER take the back off a CRT or Plasma TV unless you are a certified technician. There are LETHAL voltages present inside the case which can persist for WEEKS after the set is unplugge
It does not sound like "too many appliances" on a plug, although low voltage can cause higher currents and shorten the life of a device.
That popping sound was your power supply failing. This is not something you can replace yourself.
Few televisions have replaceable fuses. They depend on electronic regulation to protect circuits from overvoltages. CRT televisions use large capacitors that loose their filtering ability with age and case errors beyond the range of the protection circuit.
It must be repaired by a technician.

Jan 02, 2010 | Combination Televisions

1 Answer

I have a Magnavox TV/DVD and i recently had a power outage. The power came back on and turned on the TV and the color of the TV screen is a purple or green tint. There is only a tiny circle about 1 inch in...

Remove the the plug from the wall socket(power) plug it back after five minutes. If the power outage was caused by lightning, then it is most likely static on the screen.


Sep 12, 2009 | Combination Televisions

1 Answer

A piercing high pitched buzzing noise when on. The sound volumne does not affect the buzzing. Always very loud.

You didn't post a model number but if this is a CRT TV (non-flat screen) the noise may be coming from the high voltage circuit and may be a warning sign of failure in the near future.

Aug 25, 2009 | Samsung Combination Televisions

2 Answers

My Samsung LCD has no picture (screen is black) and the power repeatedly turns on and off. The red light on the power button continues to turn on and off. Can you help? The TV is only 3 years old.

open back cover check 5v filter capacitor on powersupply board that is either 1000uf or 2000uf
do you see any bulging capacitor? replace with top quality capacitor.

Aug 07, 2009 | Samsung CXM2785TP 27 in. TV/VCR/DVD Combo

1 Answer

I have a Sony Vaio 27" flat screen CRT. The reset light in the front is blinking and the power will not stay on

i think you have a wire loose or either that or the screen has something burnt out. wiggle some of the wires and see if they need tightening. especially the POWER IN, IN-PUT wires.

Dec 26, 2008 | Sony VAIO VGC-LT23E 22" PC/TV All-in-one

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