Question about Samsung HCN436W 43" Rear Projection Television

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Samsung HCN436w 43in rptv

My tv is not switching on and is just staying on standby mode it makes the melody when u try to switch it on but then no picture comes on or sound what could be the problem and how do i fix it?

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Try disconnecting the convergence board and see if it will turn on without this board connected - if it turns on then you likely needs to fix or replace the convergence board

Posted on Nov 30, 2008

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HI MY SAMSUNG SP42Q2HD TV KEEPS GOING ON TO STANDBY EVERY 5 MINS IS THEIR ANYTHING I CAN DO TO FIX IT THATNKS


willnat126,

This could literally be anything. I have a tip at http://www.fixya.com/support/r6396176-projection_tv_troubleshooting which will walk you through the troubleshooting procedure and help to isolate the problem and tells you where to get parts.

Thanks for using FixYa and for the great rating.

hardrocko

Apr 09, 2011 | Samsung HCN436W 43" Rear Projection...

1 Answer

Tv will not switch on just stays in standby mode


Sounds like a power supply problem you will need to take it into a local repair shop

Mar 19, 2010 | Samsung HCN4226W 42" Rear Projection...

2 Answers

No power standby light


If it is the main fuse that is being smoked, there are a number of possibilities:

1) Since this is a CRT based set, the most common failure os of the horizontal output transistor. This goes shorted which causes too much current draw on the power supply and it pops hte fuse.

2) The switch mode power supply transistor has shorted.

3) Failure of the primary side capacitor.

Without seeing the set and taking some internal measurements, I can not state for sure the exact problem with your set. Since there are potentially dangerous high voltages present inside even when unplugged, I would suggest that you get a detailed repair estimate from a local service shop and post the results here. We may be able to walk you through the actual repair.

Dan

Feb 12, 2010 | Samsung HCN436W 43" Rear Projection...

1 Answer

52' take about 15 min. to come then only stay on for about 1hr


The convergence ICs overheat , you get bad picture and then the TV detects the fault and go in protection mode, that is the standby state.

That means that the convergence ICs are bad and must be replaced, the job is about $200/$300.

Here there is an example of the repair needed: Fixing Convergence problems in RPTV's

Mar 09, 2009 | RCA HD52W59 HDTV Projection Television

2 Answers

Colors off. blue and yellow not lined up


try to set the convergance if you cant you can adjust the color tubes from inside the tv but have to be very careful to do this. There is actually only 3 colors in the tv red, blue green so I would say your blue and green need lined up

Sep 30, 2008 | Projection Televisions

1 Answer

Model RE44SZ21D when I switch TV on it maks a whinning sound like a hard drive not reading properly and switches back into standby. Sometimes it will start, (normally if not tried for sometime) stays on...


hello john.
this is a late suggestion,but if you still have the set & the proplem
in existence.
then i suggest you check with the lamp---situated on the right hand
side ,two screws to undo--once in further two screws--pull back the
casing clean with a dry cotton cloth & with that clean the cooling
fan just adjasent to the case.+ remember to leave the tv on standby mode for 3 minutes before you completely switch it off ,as this helps to cool down the lamp the fan at rear still propels while the tv is in standby mode.--------ASH

Aug 14, 2008 | Projection Televisions

2 Answers

TV TURNS OFF SUDDENLY


I had a similar issue with my Samsung. It would just turn itself off. I found someone else out who overcame it, forget the site. My fix was as simple as taking off the access panel to the lamp in the back and putting it back in making sure teh bottom went in first. It seems tehre is a switch that detetcs the door open and turns the TV off. The switch apears to "move up" with heat? Anyways, my TV would turn off every few minutes for severla weeks and now it has not done it in 2 days.

Jun 03, 2008 | Samsung HCN436W 43" Rear Projection...

2 Answers

50"plasma


so you got the audio working correct? Sounds like it may be going into a protection mode of some sort now. I would try leaving it unplugged overnight and try again the next day and see if it starts working

Apr 30, 2008 | Projection Televisions

1 Answer

TV PROBLEM


Check if your rca'c havent got short. Otherwise you must open youtr tv , check where your convergenge ic's is , there is 3 plugs near the convergenge heatsink. Plug it out. if it stays on you must change your convergenge ic;s

Feb 20, 2008 | Samsung HCN436W 43" Rear Projection...

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