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!

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All posts are presented here for informative, historical and educative purposes as applicable within fair use. NOTHING HERE IS FOR SALE !

Monday 25 March 2019

LG 37LC7D - NORTH AMERICA - USB DOWNLOAD - WHITE BALANCE ADJUSTMENT

LG 37LC7D - NORTH AMERICA - USB DOWNLOAD - WHITE BALANCE ADJUSTMENT



USB DOWNLOAD METHOD
USB Download enables quick response to S/W upgrading and helps to configure the panel to the latest updates.
  • Before starting USB download, ensure that the power is turned off and the display is turned on.
  • Once the USB memory stick containing the upgraded file is connected to the USB port on the main board, [TV SOFTWARE UPGRADE]  screen appears
  • Check the current version at [Current TV Software Version Information] and the target version at [New Found TV Software Version Information]. Press Enter on the remote controller to confirm the upgrade.
  • Picture shows the downloading in progress.  Once the download is completed, the power is automatically turned on and off. (Otherwise, please turn the power on and off). 
  • Once the download is completed, remove the USB memory stick from the USB port. Press IN-START on the remote controller to check the upgraded S/W version at the top of the screen while the display is turned on.
WHITE BALANCE ADJUSTMENT
  • Purpose: to reduce the difference in color temperature among modules
  • A module is in full dynamic range when RGB Gain on OSD is 192. To adjust the white balance without causing full dynamic range and full data, fix one of RGB Gains at 192 and control the other two by reducing them from 192.
Required Equipment
  1. Color Analyzer : CA-110 or CA-210
  2. Automatic adjuster (with automatic adjustment necessity and the RS-232C communication being possible)
Use the internal pattern to adjust White Balance. The pattern is automatically given when the automatic adjustment device is connected or when a user presses ADJ on the remote controller to start Ez Adjust and then selects 6.White-Balance.
  • Requirements for Automatic Adjustment
  1. The illuminance of surroundings 10 lux or less; preventing light in surroundings as much as possible.
  2. The location of the Probe
  3. For PDP: place the color analyzer (CA-110, CA-210) close to the surface of a module and start the adjustment.
  4. For LCD: place the color analyzer (CA-110, CA-210) close to the surface of a module within 10 cm and keep the probe of the color analyzer at 80° to 100° angle from the surface of a module.
  • Aging time
  1. Once Aging is started, keep the power on without power supply interruption for at least 15 minutes for heat run.
  2. For PDP, use the internal pattern to adjust White Pattern.
  3. For LCD, use NO SIGNAL or Full White Pattern to ensure the backlight is turned on.
  • Adjustment of White Balance
(Automatic Adjustment)
  1. Turn on the POWER ON( ) of the remote controller to set the adjustment and then start the automatic adjustment or set the Baud Rate to 115200.Â) of the remote controller to
  2. Start the adjustment from “wb 00 00” and complete it at “wb 00 ff”. (Adjust the offset if necessary) wb 00 00 the automatic adjustment of White Balance is started.  wb 00 10 adjusting gain (internal pattern appears) is started.
ja 00 ff adjusting data
jb 00 c0
...
wb 00 1f adjusting gain is completed.
Adjust the offset (from wb 00 20 to wb 00 2f) if necessary.
wb 00 ff the automatic adjustment of White Balance (internal pattern disappears) is completed.
Posted By: FRANK at 03:06
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