REPAIRING AND NOT THROWING AWAY

Richtige Fernseher haben Röhren!

Richtige Fernseher haben Röhren!

In Brief: On this site you will find pictures and technical information about Service Modes, Circuit Diagrams, Firmware Update procedure, Disassemble procedure, Universal remote control set-up codes, Troubleshooting and more....

If you go into the profession, you will obtain or have access to a variety of tech tips databases HERE IT IS Master Electronics Repair !.

These are an excellent investment where the saying: 'time-is-money' rules. However, to learn, you need to develop a general troubleshooting approach - a logical, methodical, method of narrowing down the problem. A tech tip database might suggest: 'Replace C536' for a particular symptom. This is good advice for a specific problem on one model. However, what you really want to understand is why C536 was the cause and how to pinpoint the culprit in general even if you don't have a service manual or schematic and your tech tip database doesn't have an entry for your sick TV or VCR.

While schematics are nice, you won't always have them or be able to justify the purchase for a one-of repair. Therefore, in many cases, some reverse engineering will be necessary. The time will be well spent since even if you don't see another instance of the same model in your entire lifetime, you will have learned something in the process that can be applied to other equipment problems.
As always, when you get stuck, checking out a tech-tips database may quickly identify your problem and solution.In that case, you can greatly simplify your troubleshooting or at least confirm a diagnosis before ordering parts.

Happy repairing!
Today, the West is headed for the abyss. For the ultimate fate of our disposable society is for that society itself to be disposed of. And this will happen sooner, rather than later.

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Note that if you don't find what you searched for, try it after a period of time; the site is a never ending job !

..............The bitterness of poor quality is remembered long after the sweetness of todays funny gadgets low price has faded from memory........ . . . . . .....
Don't forget the past, the end of the world is upon us! Pretty soon it will all turn to dust!

©2010, 2011, 2012, 2013, 2014 Frank Sharp - You do not have permission to copy photos and words from this blog, and any content may be never used it for auctions or commercial purposes, however feel free to post anything you see here with a courtesy link back, btw a link to the original post here , is mandatory.
All posts are presented here for informative, historical and educative purposes as applicable within fair use. NOTHING HERE IS FOR SALE !

Saturday 2 February 2019

LG BH5140S HOME THEATER SYSTEM HOW TO UPDATE THE FIRMWARE, SMPS AND POWER AMPLIFIER SCHEMATIC

Home Theater System LG BH5140S, How to update the firmware, SMPS and Power Amplifier schematic

LG 3D Blu-ray/DVD Home Theater System - BH5140S (BH5140S, S54S1-S, S54T1-W) – Software Update, SMPS and Main amplifier circuit diagram
AMPLIFIER
Power Output, (4 Ω / 3 Ω), (RMS), THD 10%
Total 500 W
Front 80 W x 2
Central 80 W
Rear 80 W x 2
Sub-woofer 100 W (passive)
NETWORK SOFTWARE UPDATE
You can update the software by connecting your drive directly to the software update server.
Configuring Network Settings
To update the software by connecting your player directly to the software update server. Your player you must be connected to the network. If your player is not connected to the network, make a physical.
Note
* Before updating the software on your player, remove any discs or USB devices from the player.
* Before upgrading your player software, turn the player off and then on again.
* During the software update procedure, do not disconnect the player or disconnect it from the AC power, or press any key.
* If you cancel the update, turn off the power again for more stable performance.
* This unit can not be upgraded to a previous software version.
Software update procedure
1. Press Home on the Remote Control.
2. Press or select the [Settings] menu.
3. Select the [Software] option in the [OTHERS] and then press ENTER.
Select the [Update] option, and press ENTER
4. If there is a newer version, the message "Do you want to download.
5. Select [OK] to start the update.
(Selecting [Cancel] will terminate the update.)
6. The player starts downloading the update from the server. (Download will take several minutes depending on the reader will look for the latest version.
Note
* Pressing ENTER  while peal update will complete the process.
** If an update is not available, the message, "Update Not Found."
Press ENTER  to return to the [Home Menu] menu.
7. When the discharge is complete, the message, [Full download. Do you want to upgrade]
8. Select [OK] to start the update.
(Selecting [Cancel] will terminate the update and the downloaded file will not be reusable.
To update the software the next time, the procedure to upgrade must start again from the beginning)
ATTENTION: Do not turn off the power during firmware update.
9. When update is complete, the current will be off automatically in a few seconds.
10. Turn On the power again.
The system now uses the new version.
Power Amplifier circuit diagram [Schematic] and PWB
SMPS schematic [circuit diagram] and PWB
Click on the pictures to zoom in