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Hello Sir, My LG home theatre system LHB 976 is not booting.When power is turned on,it will show on screen BOOT.How can you help

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 1779 Answers

SOURCE: Philips LX3600D Home theatre always returns to standby mode

There is a 1ohm resistor on the 4x4 pcb as soon as you take off the cover. ( I forget the ID # ) It supplys the -15volts to the control bd. The resistor will not looked burned. It was under rated. An ohm meter will find it ( open ). Rreplace it with a 1/3 watt. I believe the orig. was a 1/4 watt.

Posted on Apr 11, 2008

SOURCE: Unlock LG home theatre model LH-SW5100

at "no disc", press "pause" and enter "314159". when it shows CODE__, enter "0" for all code, press "pause" and the power button.

Posted on May 19, 2008

  • 1 Answer

SOURCE: resetting the progressive scan mode on an LG lh-d2645 home theatre system

the above is correct but you need to have the dvd player on with no disc in so "no disk" is shown on the front display. then hold down the stop button for 5 secs to reset the display mode back.

Posted on Jan 02, 2009

  • 864 Answers

SOURCE: how to turn off demo mode on a sony home theatre system davhdx265

Here is the manual: http://www.docs.sony.com/release/DAVHDX265.pdf
See page 18 for illustrated instructions for turning demo mode on or off.

Posted on Sep 15, 2009

dunnbiker
  • 8546 Answers

SOURCE: my home theatre dvd system

Generally speaking, an amp attempts to protect itself from heat, shorts, overloads and operator exuberance by refusing to turn on or stay on.

Overloads can be from excessive periods of high output or marginally low impedance loading by the speakers; and shorts would be wiring issues or a speaker blowing up.

You should be able to feel if it's hot. WHY is it overheating? Make sure it has sufficient ventilation on all sides and that vent holes are not blocked by dust balls. Ensure the fan (if equipped) is running as designed (some only operate on demand). Clean dust and debris from it.

If the amp comes back on after cooling, you're lucky. They only have so many self-protection cycles in their lives so continuously resetting or cycling their power without addressing the cause can do more harm than good.

If it protects immediately on a cool power up you should disconnect the speaker connections and try it 'naked'. If it comes up then diagnose which lead(s) are shorted. If it does not come up the problem is internal and should be left to an experienced and competent hands-on tech.

Posted on Jul 29, 2011

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Lg network 3d blu ray home theather model# lhb336 problem/boot and please wait


Check working condition hardware. May be malfunction Main Boar or AMP. Unplug cable (wires) attached from Power PCB Board and main board to AMP PCB Board. Turn ON, if again comes message " Please wait" and unit sot down itself- Malfunction main board. If unit booted UP -OK -replace AMP board. Parts are available on our web

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Unlock LG home theatre model LH-SW5100


at "no disc", press "pause" and enter "314159". when it shows CODE__, enter "0" for all code, press "pause" and the power button.

Apr 21, 2008 | LG Audio Players & Recorders

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Phillips LX3600 Home Theatre



Power up the set and open tray in DVD mode.
Press <9999> follow by <X> buttons on the Remote control.
where x = numeric 1 to 6 denoting the regions below:
Then show your region on TV
1 = USA
2 = Europe
3 = Asia Pacific
4 = Australia, New Zealand, Latam
5 = Russia, India
6 = China
0 = Code Free

This is taken from the original service manual for the reciever

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None of the above. Sorry. All those "solutions" are "shooting in the dark". There is a definitive method of determining the problem here, without guesswork.

The "HP screen" you speak of is an "advertising mask" governed by the "quiet boot" option in BIOS.

This HP screen is shown INSTEAD of showing you exactly what BIOS is "doing" at that moment: First, a ROM checksum to verify BIOS is OK, then a quick system check of the most basic components, and if that goes well, the next thing it does is count AND check the RAM. Finally, after all that is done, it will look for a hard drive and query that drive for cylinder or LBA size, then look at MBR for sector zero, to find an operating system.

So here is what you must do to SEE all that taking place:

1. Make sure the system is TOTALLY cold (off, not in any ACPI state). Do this by pressing and holding the power button for 10 seconds, then release.

2. Remove Battery and the PSU (AC power supply)

3. Insert the PSU connector (only) this will also eliminate any battery problems. Batteries with dead cells can pull out so much current that you get slow boot/running performance. More on this later.

4. Now, start the computer, and keep pressing ESC key, quickly. It may start beeping. Stop and wait then.

5. Next, you will see a BLACK screen instead of HP screen. There will be some white text that scrolls. First the BIOS type and version. Next, RAM will be counted, and last, a HD will be reported. Last (or if any of the above have a problem) any errors will be reported. Some BIOS will specify the error, others will report it as "code XXX". Send me (post) this info, and I will analyze the problem.

NOTE: you can hit the PAUSE key at any time, to read the info, if it runs too fast for you. Then press PAUSE key again, to resume the BIOS data post process. Once you have reported back with any errors (as in step 5 above), we can also do this same thing with Windows, to "see" the black screen/errors reported as the PC boots.

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1 Answer

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There sould be audio outputs on the back of it, and the manual should clearly show how to set up a home theatre with an external sound system and all.

I don't know what kind of sound system you have, but I think it might be best to connect your video source (typically DVD player) to your sound system, as it usually can be done better that way. No need to introduce another link in the chain (your TV) that could degrade sound. Also any external tuner could (should) be connected to your sound system directly.

If you use the internal tuner in your TV to watch TV the audio out is your option. Best way to get this right is to consult the manual. They usually have some diagrams that shows a few options of how to do it.

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