Question about Projection Televisions

1 Answer

It's an anolgue tv not projection model number tx-21md1

When i switch on the main power switch nothing happens but the standby light/led flashes on and off at apromately 1 minute intervals

Posted by on

  • rhuskey523 Dec 08, 2008

    RCA d52w14yx1 : TV power light comes on and off a cpl times in the morning,then nothing, wait a few minutes and try again for a cpl times, it will eventually come on, picture then skews about a min and straightens out and runs good, seems to be getting worse every week.

×

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Projection T... Master
  • 8,617 Answers

The start up voltages are needing to be trouble shooted. Post your model number and I will post a link to where you can get the service manual and free tech support to help you sort it out.

Posted on Mar 29, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Faulty sony rear projection tv


for a possible answer please provide the Model number as there are several hundred Sony projection models that are different.

Dec 15, 2012 | Projection Televisions

1 Answer

The tv switched off and the lcd light started flashing green


ISSUES:

1. IF sound main fuse/s are good.
2. If no power or standby check main fuse, standby power supply and any signsof damage you can see---burnt parts etc.
3. almost all these sets the troubleshooting involves checking voltages on the main power board to narrow down theproblem.
4. Be safe and if you do not know what you are doing don't open the set.

Answers to issues:

1. RE:fuses---if a blown fuse is found get a good replacement(not the genericones like Radio Shack). Many fuses are special even aside from amperage--Don'tput a higher rated amperage fuse in the set for any reason.

2. RE: power supply in set: if total dead aside from main fuse the set uses astandby power supply that runs 7/24 and a main supply (some are combined andsome not.

Here aside from checking fuses you want to examine all the filter caps on thepower/standby to see if any are puffed up or buldged up in some fashion--Iattach a photo of a good one---top should be silver metal and PERFECTLY flatand have no brown material coming out on top or bottom.

What happens in the standby area is they use caps with too low a voltage rating(saves money) which causes them to fail in a year or two---the standby runs7/24 and the heat dries out the caps and they fail.

3. Trouble shooting consists of the above and then at some point you have tobuy and try a board to see if it fixes it or not.

4. Safety first--no TV set is worth getting injured or even killed over.4_12_2012_1_20_07_am.jpg
look at the power board inside the set to see if puffed up caps like these that are bad.
A model number (not indicated here) would be helpful.

Apr 11, 2012 | Toshiba Projection Televisions

3 Answers

Flashing stand by light and tv does not respond to any swithc or remote


Hi.

If after the fault the TV went in standby and does not wake up, staying there with led flashing, then the TV has on protect mode after detecting a fault.
When this happens higher voltages are shut down to prevent further damage. Only the +5V line will stay on to keep the TV in standby.

Try first leaving the TV power cord unplugged for some times, let say one hour or so.

Also ensure that the fault is not coming from a faulty receiver box sending bad signal, check if you get same problem with no receiver box or dvd connected.

If that does not work, and you keep having a flashing led on front of the TV, and tv turning off by itself after a while, that indicates a fault condition.

The flashing light indicates a diagnostic state called protection.
When the TV goes on protection there are only two possible reasons.

1The internal circuits are jammed because of electrostatic charges accumulating on capacitors, or because of a wrong voltage read by the main chip on your monitor controller board. this started the protection circuit.

2 The protection circuit detected a wrong voltage or abroken contact, identified an internal fault and kicked in , startingthe flashing light.


If you are in situation one, then theTV will reset just unplugging power cord for one or two hours,sometimes even minutes.

If you are in situation 2 , then there is an internal fault.

Common faults that can occur are a blown capacitor on power board, a convergence IC has blown, or a fault on Digital board.

If under warranty contact the manufacturer ringing the number on the user manual

If you want to repair at your own expenses, just locate any good qualified repairer.

Nov 02, 2009 | Sony Projection Televisions

1 Answer

Tv will shut off and red light will flash 3 times


If its Sony KDF-42WE655 TV that goes to standby and LED blinks 3 times then check Lamp Door that seems not fixed properly.
That happens when lamp replaced in TV.
If its different model number TV, let me know exact model number.

Jul 19, 2009 | Sony Grand WEGA KDF-42WE655 42" Rear...

1 Answer

No Power


does the front green led light flash?
unplug the set for 30 min then replug try to turn on. if the light does not flash then i might be a main fuse. Point... main fuse falure ussally means more than just fuse. if the light flashes then you have a shutdown condition. This set processor shuts it down for 1 or 25 different reasons as technicians we have a computer that reads errors much like a cars error codes.

Nov 02, 2008 | RCA HD52W59 HDTV Projection Television

1 Answer

When i switch on my digital Panasonic TV (Model TX-32LMD70)using the remote control from standby (red light showing) the green (on light) flashes and then nothing happens i.e. the television does not...


Is your TV still under warranty? This problem seems common on this site with the Panasonic brand. I really can't say what exactly is causing this problem, but it seems like something in the power circuit board is faulty. My advice would be to call Panasonic's Technical Support Hotline and speak to a Technician. It could even be a problem that has warranted a recall of that particular model. The number for Panasonic's Hotline is 1-800-211-7262. Or, you can contact them via e-mail @ www.panasonic.com under "Get Support". Hope this helps...

Sep 08, 2008 | Panasonic Projection Televisions

1 Answer

Tv switched on nothing happens apart from red led flashing on front of tv help no picture or anything


Need to know the model number and also how many times is the led flashing in between pauses as the blinks are indicating an error code, But cant help without the model number and knowing how many blinks its blinking.

May 17, 2008 | Philips Projection Televisions

1 Answer

When i switch my panasonic tx-21md1 television at the power switch all that happens is that the standby light just flashes on and off at approx 1 second intervals even with no leads connected at the rear.


your set is entering protective shutdown. Most likely its a failure in the standby or start up voltages that is allowing a voltage to increase triggering the shutdown circuitry to prevent your set from starting. Do you have any trouble shooting skills?

Mar 29, 2008 | Projection Televisions

1 Answer

View timer only lights


TV WILL NOT NOT TURN ON RED VIEW TIMER LIGHT FLASHES AND THEN I CAN'T TURN OFF TV

Mar 29, 2008 | Sharp 61RWP4H 61" Rear Projection...

Not finding what you are looking for?

Open Questions:

Projection Televisions Logo

Related Topics:

80 people viewed this question

Ask a Question

Usually answered in minutes!

Top Projection Televisions Experts

Jaime Hernandez

Level 3 Expert

2267 Answers

matt martin
matt martin

Level 3 Expert

1191 Answers

yadayada
yadayada

Level 3 Expert

60960 Answers

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

Answer questions

Manuals & User Guides

Loading...