Question about Samsung HLP4663W 46" Rear Projection HDTV

1 Answer

Wont start When i try to start the TV is get a flashing lamp message with a sound I think is the fan, then I get a decending whistle which seems to tune the fan off then it all repeats. If i hold the power button down i get the lamp, timer Temp thressome but it won't actually turn off. I had a new lamp sent and installed it. No change. I live a long days trip to the nearest service provider. Any ideas?

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert who has answered 1,000 questions.

  • Master
  • 1,139 Answers
Re: wont start

Hello cordovan,

It sounds like you may have a Power supply problem since the set will not turn on at all and the only power present is form monitoring functions which use a separate power supply any way. Now to trouble shoot this problem you will need these basic tools:

a Multimeter (to measure DC and AC voltages)
a Schematic Diagram (To locate Test Points and voltages levels)
This should cover what is needed.

First unplug the TV and check the fuses using the ohmmeter setting on the multimeter. Then locate the power supply section which feeds from the main power rectifier plug the set in and turn it on, measure the DC voltage off of the bridge rectifier. Then locate the voltages from the various regulators to determine if these are active. if not check the FET used to activate the switching transformer, as with the other instructions measure the voltages and determine if the FET is being switched on and off by the driver oscillator. If this is not occurring then it can be assumed that a power supply problem might be an issue. I would then unplug the set attempt to take resistance measurements to make sure that there were no low resistance events (shorts) on the various stages of the TV.

This should reveal if the power supply board is bad, if it is take the board find out its part number and order it, I would not attempt to effect repairs on the circuit because more damage might be inflected on the TV set by doing so.

Now if this is something you rather not do, I would then suggest that you take the TV to the shop for repairs.

I hope this helps,
Thank you,

Posted on Jan 20, 2008

Add Your Answer

0 characters

Uploading: 0%


Complete. Click "Add" to insert your video. Add


3 Points

Related Questions:

1 Answer

I have a sony 55"

3 times red standby light flashing indicates that lamp cover (first thing that you removed from tv to replace lamp) is not fixed properly on tv, make sure lamp cover is attached correctly with tv to solve this issue.
3 times blinking is not problem of fan or anything else, it is related to lamp cover that engages safety micro switch inside to turn On tv.

Jan 27, 2011 | Sony KDS55A2000 55" HDTV

1 Answer

Sony bravia KDF-E50A12U rear projecion tv wont turn on

Hi it sounds like it could be an issue with board that powers the lamp ,it's called the ballast.When you put a new lamp in the ballast has to provide more power ,when it starts to go weak it will not light up.Sometimes you can put your old lamp in and will work fine.Try they might have it right there.Hvae a blessed one!

Mar 02, 2010 | Projection Televisions

1 Answer

Hitachi UltraVision VG825 Series 60 inch Projection TV What is the part number of the lamp that I need? And, just to be sure, this is the process of what I do and what happens when I try to turn the T.V....

the fizzing sound you hear is most likly the ballast atempting to start the lamp so thats a good sign that the lamp is bad and not the ballast part # is(UX21516)

Jan 25, 2010 | Projection Televisions

1 Answer

Samsung HL-P5063W DLP No. 1 fan problem

Defective Lamp,maybe and Ballast Board may well be the problem it is what turns Lamp on Look on line Encompass Parts Dist 1-800-638-3328 Ballast Board also has small fan mounted in front of it!

Nov 21, 2009 | Samsung HL-P5063W 50" Rear Projection HDTV

1 Answer

No picture- no sound

first of all u should check ur transistor connections.Check your Horizontal and vertical output transistors.You should also check the horizontal and vertical yoke connections as well as your low voltage regulators.... if any of these got damaged u should purchase a new one.. but try to purchase with the help of a tv service assistant...
thank u!!!
rate me

Jul 12, 2009 | Mitsubishi WD-65732 65" Projection HDTV

2 Answers

No picture and no sound

you need a coler weal if it macks noise.

Oct 01, 2008 | Samsung HLR5667W 56" Rear Projection HDTV

3 Answers


have you checked the air filter located on the side of the unit? Also can you hear the fan start as soon as you plug the set in?

Apr 09, 2008 | Mitsubishi WD-52631 52" Projection HDTV

4 Answers

Flashing red light

I think this sounds like my problem (need to replace the projector lamp). However, when I hit the "on" button, my SXRD 50" blinks green for about a minute then starts blinking red. Can you confirm the bulb solution? I was very pleased with this sight when my fan malfunctioned. I got the fan in a matter of day's from Sony and it fixed that problem.

Oct 29, 2007 | Sony KDS-R60XBR1 60" Projection HDTV

1 Answer

PT-45LC12 wont power up

You have a bad lamp. The "clicking" sound you hear is the ballast (lamp power supply) attempting to start the lamp. The warning on Panasonics that comes up on screen does so when the life expectancy of the lamp is approaching. Otherwise your "clicking" sound and the red light on front are saying bad lamp. When you replace the lamp remeber to follow the instruction that Panasinc provides with the new lamp on restetting the lamp timer. This is usually done with the volume down on the TV and the PIP button on the remote.

Feb 26, 2007 | Panasonic PT-45LC12 45" Rear Projection...

Not finding what you are looking for?
Samsung HLP4663W 46" Rear Projection HDTV Logo

58 people viewed this question

Ask a Question

Usually answered in minutes!

Top Samsung Projection Televisions Experts

Steven Wander
Steven Wander

Level 3 Expert

574 Answers

The Wyzzyrd

Level 2 Expert

83 Answers

Donald Griswold
Donald Griswold

Level 1 Expert

8 Answers

Are you a Samsung Projection Television Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides