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.

How to use the site:
- If you landed here via any Search Engine, you will get what you searched for and you can search more using the search this blog feature provided by Google. You can visit more posts scrolling the left blog archive of all posts of the month/year,
or you can click on the main photo-page to start from the main page. Doing so it starts from the most recent post to the older post simple clicking on the Older Post button on the bottom of each page after reading , post after post.

You can even visit all posts, time to time, when reaching the bottom end of each page and click on the Older Post button.

- If you arrived here at the main page via bookmark you can visit all the site scrolling the left blog archive of all posts of the month/year pointing were you want , or more simple You can even visit all blog posts, from newer to older, clicking at the end of each bottom page on the Older Post button.
So you can see all the blog/site content surfing all pages in it.

- The search this blog feature provided by Google is a real search engine. If you're pointing particular things it will search IT for you; or you can place a brand name in the search query at your choice and visit all results page by page. It's useful since the content of the site is very large.

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 !

Monday 25 March 2019

LG 42LG70 ADJUSTMENTS AND SOFTWARE UPDATE PROCEDURE

LG 42LG70 ADJUSTMENTS AND SOFTWARE UPDATE PROCEDURE




ISP DOWNLOAD
  • The Micom upgrade via the external port for the service for the customer.
Device to use
  1. PC
  2. B/D for the interface (IIC & ISP)
  3. Jig for downloading (for the power supply).
Adjustment condition (Download condition)
  • IC name & Circuit number: MYSON MTV416GMF & IC4015
  • Power supply: 5V (P4004 Pin 3)
  • SCL: D-sub Pin 10
  • SDA: D-sub Pin 7
DOWNLOADING
  • After executing LGE Monitor Tools v1.1, click the first icon.
When the screen is displayed as shown, set the items as follows:
  •  MCU Select: MTV512M64
  • R/W Option: Auto Write(Verify)
  • Jig Option: Myson
  • Transmit Speed: Medium
  • Check: blank
  • PORT: Select the Parallel Port to use (LPT1 in general)
  • # Caution: Select the EPP as LPT from the ROM BIAS setting.
  • Click the Load File Button, and select the desired Hex File to download.  (If no file is displayed, make sure that the file format is selected as Hex file (*.hex))
  • Click 'Send Button'
USB SOFTWARE DOWNLOAD
The USB download is for the quick service response via the S/W upgrade and for applying the S/W upgrade necessary for the board adjustment.
  • After turning on the set, make sure that the display screen is turned on.
  • When the USB Memory Stick with the upgrade file applied is inserted into the USB jack on the main board, the following screen (example) is displayed after several seconds.
  • Check the current version at [Current TV Software Version Information], check the S/W version to upgrade at [New Found TV Software Version Information], and press the Enter button of the TV remote controller.
  • Downloading is proceeded as shown at the below screen, and when it is ended, turning on/off is automatically done.  (When the automatic proceeding is not smoothly done, manually perform the power On/Off).

  • When downloading is ended, remove the USB Memory Stick from the USB jack.
  • Press the IN-START button of the remote controller to check the upgraded S/W version.
COUNTRY SELECT OPTION
  • Press the In-Start key of the Adjust R/C and press the red oval OP1(PIP CH-) key to enter into the Factory Option menu.
  • Select 1.USA, 2.CANADA or 3.MEXICO from the country select according to the destination.
  • At this time, use the volume +/- key to adjust.
WHITE BALANCE ADJUSTMENT [DEVICES TO USE]
  • Color Analyzer : CA-210 (NCG: CH 9 / WCG: CH12)
  • Computer to adjust (needed for the automatic adjustment, possible to communicate with the RS-232C)
  • Adjustment remote controller
  • Video Signal Generator MSPG-925F 720p/216Gray (Model:217, Pattern:78) => Applied only when the inner pattern cannot be used
  • # Use the Color Analyzer with the matrix calibrated by the CS-1000.
"wb 00 00": Start Auto-adjustment of white balance.
"wb 00 10": Start Gain Adjustment (Inner pattern)
"jb 00 c0" :
 …
"wb 00 1f": End of Adjustment.  * If it needs, offset adjustment (wb 00 20-start, wb 00 2fend)
"wb 00 ff": End of white balance adjustment (inner pattern disappear)
TO ADJUST AUTOMATICALLY
  1. The adjustment condition should be set by the Power On key.
  2. Perform the zero calibration of the Color Analyzer and place the probe close to the display center.
  3. Connect the communication cable (RS-232C).
  4. Select the desired model of the adjustment program and perform the adjustment.
  5. After the adjustment is ended (check the OK sign), check the adjustment condition for each mode of the set. (Warm, Medium, Cool)
  6. Disconnect the probe and the communication cable to end the adjustment.

#  The adjustment should be started with "wb 00 00" and ended with "wb 00 ff", and the offset should be adjusted when necessary.
MANUAL ADJUSTMENT
  • The adjustment condition should be set by the Power On key.
  • Press the ADJ of the R/C to enter into 'EZ-ADJUST'.
  • Select '10.TEST PATTERN' with the CH +/- key and press the Enter key for 30 minutes or longer to perform the heat run.
  • Perform the zero calibration of the Color Analyzer and fix the sensor with the 10cm or less distance at the center of the LCD module surface when adjusting.
  • Press the ADJ of the R/C to select '7.White-Balance' of the Ez-Adjust and press the right arrow key(G ) to enter into the adjustment mode.  (As soon as you press 'G ', the screen is entered into the full white inner pattern.)
  • Fix one of the R/G/B gains to 192 and decrease the remaining two gains to adjust not to exceed 192.
  • The adjustment is done at three white balances of Cool, Medium and Warm.
The inner pattern is basically used, and if it is not possible, the adjustment can be done by selecting the HDMI input. NONE, INNER or HDMI can be selected by the bottom option at the Ez Adjust Menu 7. White Balance menu and it is set to INNER as default. If the adjustment cannot be done by the inner pattern, select the HDMI to adjust.
Posted By: FRANK at 03:07
TAG: , , ,