Question about Real Digital RD2200 22 in. HDTV-Ready LCD Television

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I have a LTD-1502 Real Digital TV, when using the ac adapeter it works fine, but if I use the DC power cord, all I get is naudio. I have checked the outputs,basically the same, polarity is the same, any Ideas?? Thanks

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2 Answers

The adapter light is on when first plugged in but then when I connect the adapter to my laptop the light goes off and it doesnt supply any power


I suggest check out the AC adapter first.

1) When plugged into power, and plugged into the laptop, gently wiggle the cable from the AC adapter TO laptop.

Any change?

Do the same on the power cord TO AC adapter.

NO?
Go on.

2) The port on the laptop that the plug from the AC adapter plugs into, is the DC Power Jack.
If we are discussing an Acer Aspire 5738Z Notebook PC, the DC Power Jack resembles this one, (Not installed),

http://www.batterysupport.com/acer-aspire-5738-jack-p-302046.html

(When I note the DC Power Jack, it is this link I will be referring to )

As you can see there is a Center Pin. All power removed from the laptop, use a small wooden, or plastic object, and see if this pin moves around.

ANY perceptible movement means a bad DC Power Jack.

DC Power Jack checks out it's back to the AC adapter.
Wanted to perform the easy diagnosis first.

This will require a multimeter. An economical, yet fine for this test multimeter, can be purchased for as little as $8 to $12.

Available in a multitude of stores. An auto parts store is but one example.
Analog or digital is fine.

http://www.youtube.com/watch?v=bF3OyQ3HwfU

(Analog is fine. Some of us still like 'em)

DC Voltage is what you are going to check.

Black probe lead (Negative) goes in the Common port on the multimeter. (COM)
Red probe lead (Positive) goes in the Voltage port on the multimeter. (V)

If the multimeter just has symbols around the Function Knob, set it to the dotted line over a solid line, symbol.

The plug on the end of the AC adapter, that plugs into the laptop, has a center hole, and a cylindrical metal shield surrounding it.

The Center Hole of the plug is where the red Positive lead, of the multimeter goes.

The outside cylindrical metal shell is where the black Negative lead of the multimeter goes.

Hold the AC adapter plug in one hand, and at the same time hold the red Positive multimeter probe in the center hole.

With the other hand touch the black Negative lead of the multimeter, to the cylindrical metal shield on the outside of the plug.

You should read 19 Volts (DC), or VERY close to it,

http://www.cellularfactory.com/laptop/ACER/3/305268/

I believe the AC adapter is the problem. Post back in a Comment as to your findings.

Regards,
joecoolvette

Apr 29, 2012 | Acer Aspire 5738Z-423G32Mn Notebook

1 Answer

Just bought a used 1987 Real-Lite truck camper. The roof air unit is Dometic as well as the LP/AC refrigerator. When turned to "cool" the air conditioner really draws down, dims the lights, and eventually...


To start with, if it's plugged in to a 15 amp breaker, and extension cord, the compressor starting up may just be enough to trip the breaker. It will draw close to 15 amps on start-up of compressor, and if there is a light extension cord used to plug it in, that only makes it worse. Make sure you shut all other breakers off in panel except AC, and try it. If you have water heater on hydro, fridge on hydro, and then try to start AC compressor, you'll be way over the 15 amps, especially if it's a light extension cord.
Keep in mind, in order for fridge to work, you need 12 volts DC (Battery) power going to back of fridge. If the controls aren't lighting up at top, you've most likely got no 12 Volt DC power going to fridge. Check all fuses as well.

Jun 02, 2010 | Dometic Rooftop RV Air Conditioner

1 Answer

Sound but no picture. menus work.


I had the same problem. In the menu, the image button was grey, and could not be hi-lighted, and the screen stayed blue. I was using the AC power cord. I plugged in the DC power cord instead, and it "woke" the unit up. I switched back to the AC power and it works fine. If you don't hve the DC cord that came with the TV, try andy 12 volt dc output cord with a positive tip.

Jul 12, 2009 | Polaroid 15'' HDTV Monitor FLM-1511

1 Answer

Samsung ltm1755b dc cord missing/need replacement


You can order a replacement AC/DC adapter power cord for this model (LTM1755B) from a major Samsung parts distributor at the link below:

Samsung LTM1755B Replacement Part AC/DC Adapter Power Cord

Apr 17, 2009 | Samsung LTM1755 17 in. HD-Ready LCD...

1 Answer

13" sansui AC/DC 12 volt use


Did you check the fuse inside the plug on the 12volt cord?

Feb 01, 2009 | Sansui COM312AD 13" TV/VCR Combo

1 Answer

TV/DVD COMBO WON,T WORK ON DC WILL WORK ON AC


Have you checked the fuse in the plug on the end of the DC power cord? Just unscrew the end.

Dec 30, 2008 | Sansui CDVD9000

1 Answer

I DON'T GET A AC POWER CORD JUST THE DC FOR MY VAN.


I'm looking for that TV For my van..we had same tv and now it doesn't work. How much would you sell it for?
Thank you

Mar 30, 2008 | Audiovox AVT1498 TV

1 Answer

Screen blackout when using AC cord


I think you're goin to have to replace your" dc-jack" as it's called. This is where your AC cord plugs into your laptop.DC-jack problems are very common in laptops.Over time they wiggle loose just enough to mess up the solder connection on the motherboard.Try gently wiggling your AC cord where it plugs into your computer ,if you screen returns to normal when you wiggle the plug a certain way,then you've most likely got a bad dc-jack.

Feb 12, 2008 | Dell Latitude D600 Notebook

1 Answer

Toshiba 9" TV/VCR W/CAR AC/DC - No power when on battery


I would check on the inside for a disconnected wire or loose connection at the Dc imput if it still works on ac. You can most likely get a service manual at http://www.servicemanuals.net/ if the wires are intact on the DC imput and the jack itself fits secure to the adapter. Hope this helps

Oct 24, 2007 | Toshiba 9" TV/VCR W/CAR AC/DC COMBO...

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