REPAIRING AND NOT THROWING AWAY

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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..............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 !

Thursday, 28 March 2019

RCA 50LB45RQ LCD TV – SOFTWARE UPGRADE – COLOR BALANCE ADJUST – WHITE BALANCE ADJUST

RCA 50LB45RQ LCD TV – Software Upgrade – Color Balance Adjust – White Balance Adjust

REC8 (it is for version 2012) series main board has a USB SERVICE port, which is reserved for service use only. Upgrade the firmware according to the instruction below.
Direct upgrading (do not need normal display)
Get an empty USB disk with size not larger than 2GB, copy firmware file (CompBase.bin, or AIICompBase.bin) to the root directory of disk.
Note: the size of USB disk cannot be larger than 2GB, and before copying the firmware file, make sure the disk is empty.
And the file must be placed in the root directory.
Turn off the TV, insert the USB disk into the SERVICE jack on the side panel of TV and then turn on the TV. After turned on, the TV's LED indicator will shine red and blue alternately. Wait for about one and half a minute to accomplish the upgrading.
Note: DO NOT power off or unplug the TV while upgrading.
Factory upgrading (need normal display)
Get an empty USB disk with size not larger than 2GB, copy firmware file (AIICompBase.bin only) to the root directory of disk.
Note: the size of USB disk cannot be larger than 2GB, and before copying the firmware file, make sure the disk is empty.
And the file must be placed in the root directory.
Turn on the TV, insert the USB disk into the SERVICE jack on the side panel of TV. Then press the remote control buttons "MENU" => "1147" to enter factory menu.
Choose "USB UPDATE" and press OK. If there are "CompBase.bin" and "AlICompBase.bin" in the disk at the same time, be sure to select "AIICompBase.bin" to update. The upgrading phenomenon is the same to direct upgrading.
Note: DO NOT power off or unplug the TV while upgrading, otherwise the upgrading will fail, and the main board will be unable to upgrade normally any more.
Upgrade Color Balance Table and Backlight configuration file
When you finish upgrading the basic software, it will display the software date in the factory main menu.
Download the color balance table file (CompQuality.bin) and back-light configuration files (ComScaling.bin) to the USB disk. The way of upgrading the color balance table is the same as upgrading the basic software.
NOTE
1 The order of upgrading TV software: Firstly, basic main board software; Secondly, back-light configuration files and colour table.
2. Make sure that there are two files in the USB disk (ComScaling.bin and CompQuality.bin), insert the USB disk to the TV, and then press POWER button to turn on the TV, it will spend 10s to finish upgrading the software.
3. When finish to upgrade the back-light configuration file, the TV will upgrade the colour table automatically.
4. Pull out the USB disk after finishing upgrading software.
5. DO NOT power off or unplug the TV while upgrading, otherwise the upgrading will fail, and the main board will be unable to upgrade normally any more.
After finish to upgrade the software, the software date will change:
In "VERSION INFO", it displays the panel model and Back-light Adjust.
Adjust Color Balance Table (White Balance)
FACTORY MAIN MENU has a WB function; you can adjust the white balance in this menu by adjusting R/G/B value. Press the remote control buttons "MENU" => "1147" to enter the factory menu.
Choose "WB"(White Balance) and press OK to enter the submenu.
Press left/right button to select the color temperature mode: Warm, Normal, Cool.
Press Up/Down button to select the R Drive/G Drive/B Drive/R Cutoff/G Cutoff/B Cutoff.
Note:
1. The RGB Drive affects the white field mainly: the RGB Cutoff affects the black field mainly.
2. In WB menu, you can adjust the color temperature, but the data cannot be updated to the TV system automatically, you can write down the date that you want and contact the factory to update the software.
3. Color balance table upgrade is not available for models produced before 2012.
Posted By: FRANK at 02:22
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