Question about Sanyo DP19648 19 in. LCD TV

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When I click the remote control or the (power button) on, it falshes on & off and takes a few minutes before I get TV on

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There's a good chance you have failing electrolytic capacitors either in the power section or the inverter section or both.
Any caps in these sections that look bulged at the top, or bulged/leaking at the bottom need to be replaced.
If you repeatedly turn it off and on, eventually it'll probably stay on, but every time you turn it off, the TV will get harder and harder to start up until one day it just won't.
Sometimes you have to do the opposite to start it up and unplug it for some time and then try again.

If you aren't tech savvy, don't worry, read the rest of this solution and watch the videos.

If you are handy with a soldering iron and can identify the power supply and inverter / FM section for the backlights, an inexpensive handful of capacitors will likely fix you right up.
Match the capacitance on the capacitors. Go over voltage if you can, and still have them fit.
IE - it's not a bad idea to replace a 10V cap with a 16V or 25V or even a 50V, but don't replace a 680uF cap with a 500uF or a 1000uF (unless you are positive it's only doing ripple filtering, and even then, you should go OVER, not under the uF rating).

Most of the caps that go are 10V 1000uF or 3300uF.

I found some great videos of the procedure (for many Samsungs with the same issue) on youtube.

http://www.youtube.com/watch?v=Mm51C_RDIZE
http://www.youtube.com/watch?v=BNHHrgX_6cs&feature=related
http://www.youtube.com/watch?v=8l0AUj8QUkg&NR=1&feature=fvwp
http://www.youtube.com/watch?v=Y7b_nTaZYcU&feature=related

As you can see, this issue spans plasma TVs, as well as large and small LCD TVs and monitors.
The parts are cheap, and skill required is minimal.

Posted on May 27, 2011

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Posted on Jan 02, 2017

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Greetings Charlotte,

All of the following assumes you are using the TV manufacturer provided remote ...
(ELSE: Get THAT remote, verify trouble & re-post fixya issue)

A few seconds is a really odd symptom (that's an IMMEDIATE cycle (2 power KEY HITS)... so before you rip into the electronic eye (Remote Recvr: tiny board at the control edge of your TV)... and/or change out the main power board...

(think... EVERYTHING else works remotely).

Try:
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- close the drapes (block sunlight from TV)
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- check the remote & remove ALL covers/tape or soil.
- fresh batteries in the remote
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Considering (I'm thinking)...

After MY studying HUMAN - MACHINE interface in a lifetime of trouble shooting... I came to know that when people become
VEXED by electronics... they tend to MASH buttons much-more deliberately (this can be a PROBLEM all by itself).

Critical timing on a button press used to be 500 to 900 milliseconds...

Meaning a longer press... went into special "handling" by program code (early software iteration (trial & errors).
((registered multiple KEY HITS = slower response, etc etc))

Your Remote Receiver is designed to register a continuous press (ON THE REMOTE) as ONE KEY HIT regardless of the DURATION... however

Any soil on the set (receiver) or remote (transmitter)...
visual objects, vases, mirrors... even sun-light can significantly change operation... as can TIRED BATTERIES (in the remote).

Failing all the cheap & easy suggestions above comment me back (+make & model) and I'll point you to procedures to get into your TV.

Hope this helps

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You may want to try a “Hard Rest” by unplugging the power from the TV.
While the TV is without power, one at a time, push on each of the buttons on the TV & listen to hear them click (there may be a button stuck down).
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1. Turn off the device with which you want to use the remote control.

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4. Press CHANNEL up or CHANNEL down repeatedly until the device turns on.

5. When the device turns on, press OK to store the code.

Note:
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