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 !

Wednesday, 13 March 2019

SHARP LC-42GD7X LCD TV - SOFTWARE UPGRADE [FIRMWARE UPGRADE]

SHARP LC-42GD7X LCD TV - SOFTWARE UPGRADE [FIRMWARE UPGRADE]


SOFTWARE UPGRADE PROCEDURE
  • The adjustment values are set to the optimum conditions at the factory before shipping. If a value should become improper or an adjustment is required due to part replacement, make an adjustment according to the following procedure.
  • After replacement of any PWB unit and/or IC for repair, please note the following.
  • When replacing the following units, make sure to prepare the new units loaded with updated software.
  • MAIN Unit: LC-42GD7X DUNTKD932FM15
UPGRADING OF EACH MICROPROCESSOR SOFTWARE
Caution: Never “POWER OFF” the unit when software upgrade is ongoing.  Otherwise the system may be damaged beyond recovery.
Software version upgrade
The model employs the following software.
  • Main software
  • Monitor microprocessor software
  • The main software and the monitor microprocessor software can be upgraded by using a general-purpose SD memory card.
  • The followings are the procedures for upgrading, explained separately for each of the main software, the monitor microprocessor software.
MAIN SOFTWARE VERSION UPGRADE
Get ready before you start
  • SD memory card of 32MB or higher capacity
  • PC running on Windows 98/98SE/ME/2000/XP operating system
  • SD memory card reader/writer with USB connectivity
  • SD memory card formatting software.  (Downloadable at http://panasonic.jp/support/audio/sd/download/sd_formatter_e.html)
Preparations
  • To upgrade the main software, it is necessary to get ready the SD card for version upgrade before you start. Follow the steps below and create the SD card for version upgrade.
  • Insert the SD card into the SD card reader/writer. Start the SD card formatting software. Click [Format].  (When you have the drive options, select the drive where the SD card is inserted before you proceed.)
  • When the formatting is over, the following window appears. Click [OK].
  • Click [Exit] to finish the formatting.
NOTE: When you are done, take out the SD card once to make sure it is finished, and then insert it again.
  • Copy the binary image file PALMAxxx.SDC (named temporarily) for version upgrade to the root directory (folder) of the SD card drive.
  • NOTE: In the SD card drive, do not store other folders or unrelated files, or more than one binary image files for version upgrade.
  • Now the SD card for version upgrade is ready.
Upgrading the software
  • Turn off the AC power (Unplug the AC power cord).
  • Insert the upgrading SD card (prepared as instructed above) into the service slot.
  • Turn on the AC power (Plug in the AC power cord).
  • A couple to dozen seconds after the set starts, the upgrade screen below shows up.
  • Do not turn off the AC power before the upgrade is completed
Adjusting procedure by use of [RS-232C]
  • Get ready the PC with COM port (RS-232C) running on Windows 95/98/ME/2000/XP operating system, as well as the RS-232C cross cable.
  • Start the unit with the RS-232C cable connected.
  • Start the terminal software. (The freeware readily available on the Internet will do.)
  • Make the following settings.
  • If the settings are correct, the terminal software indicates “ERR” against pressing of the “ENTER” key.
  • After the settings are done correctly, it is possible to make an adjustment by typing in the command shown in the table below and pressing the “ENTER” key on the keyboard.
  • Command entry is successful if the terminal software indicates “OK” when the “ENTER” is pressed. If “ERR” is shown, retry to enter the command.
  • Send the process mode switching command to switch from the RS232C operation mode to the process mode.
KRSW0001: “ERR” is returned.
KKT10037: When “OK” is returned, the process mode becomes active. When “ERR”, start over from KRSW0001.
  • Send each adjustment command.
Posted By: FRANK at 08:24
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