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 !

Monday 25 March 2019

LG 55LM6700 LCD TV SOFTWARE VERSION UP ADC FUNCTION CHECK USB UPLOAD MEMORY UTILIZATION

LG 55LM6700 LCD TV SOFTWARE VERSION UP ADC FUNCTION CHECK USB UPLOAD MEMORY UTILIZATION




  • Adjustment equipments: Color Analyzer (CA-210 or CA-110), DDC Adjustment Jig equipment, Service remote control.
  •  Push the “IN STOP" key - For memory initialization.
Software version up
  • After downloading S/W by USB , TV set will reboot automatically.
  • Push “In-stop” key.
  • Push “Power on” key. 
  • After function inspection, Push “In-stop” key.
Function check at the assembly line
  • When TV set is entering on the assembly line, Push “In-stop” key at first.
  • Push “Power on” key for turning it on.  If you push “Power on” key, TV set will recover channel information by itself.
  •  After function inspection, Push “In-stop” key.
Main PCB check process
  •  APC - After Manual-Insert, executing APC
Boot file Download
  • Execute ISP program "Mstar ISP Utility" and then click "Config" tab.
  •  Set as below, and then click "Auto Detect" and check "OK" message.  If "Error" is displayed, check connection between computer, jig, and set.
  • Click "Read" tab, and then load download file(XXXX.bin) by clicking "Read"
  • Click "Connect" tab. If "Can't" is displayed, check connection between computer, jig, and set.
  • Click "Auto" tab and set as below.
  • Click "Run".
  • After downloading, check "OK" message.
USB DOWNLOAD
(*.epk file download)
  •  Put the USB Stick to the USB socket.
  • Automatically detecting update file in USB Stick.   If your downloaded program version in USB Stick is Low, it didn't work. But your downloaded version is High, USB data is automatically detecting.
  • Show the message "Copying files from memory".
  • Updating is starting.
  • Updating Completed, The TV will restart automatically.
  • If your TV is turned on, check your updated version and Tool option. 
If downloading version is more high than your TV have, TV can lost all channel data. In this case, you have to channel recover. if all channel data is cleared, you didn’t have a DTV/TV test on production line.
After downloading, have to adjust Tool Option again.
  • Push "IN-START" key in service remote control.
  • Select "Tool Option 1" and push "OK" key.
  • Punch in the number. (Each model has their number)
ADC Process
  • Enter Service Mode by pushing "ADJ" key,
  • Enter ADC mode by pushing "►" key at "8. ADC Calibration".
  • There are 2 ways for ADC Calibration.(OTP, External)
  • OTP mode: Automatic ADC Calibration.(Internal ADC Calibration)
  • On the manufacture line, OTP is used for ADC Calibration automatically.
  • Externl mode: Manual ADC Calibration.
  • When OTP mode is failed, ADC calibration should be “OK” by using External mode.
OTP mode
  • Press "ADJ" key on the Adjustment Remote Control, then select “8. ADC Calibration”. By pressing Enter key, enter ADC Calibration menu.
  • Set up the ADC Type to OTP, then Select [Start] button by pressing Enter key, Component and RGB are Written and display Success or NG.
External mode
Equipment: MSPG-925 series Pattern Generator , RS-232C Jig
  • Input the signal for TV SET by using Pattern Generator (Model : 225, Pattern No : 65)_1080P
  • Change the ADC type “External” by using “►”key.
  • Enter “Start” key.
  • Check the sign “OK” all of comp/RGB.

                  Caution:  Using "P-ONLY" key of the Adjustment remote control, power on TV.
ADC Calibration Protocol (RS232)

NO
ITEM
CMD-1
CND-2
DATA
DATA


Enter
Adjust MODE
Adjust
‘Mode In’
A
A
0
0
When transfer the ‘Mode In’,
Carry the command.
ADC adjust
ADC Adjust
A
D
1
0
Automatically adjustment
(The use of a internal pattern)
Adjust Sequence:  Required equipment : Adjustment remote control.
  1. aa 00 00 [Enter Adjust Mode]
  2. xb 00 40 [Component1 Input (480i)]
  3. ad 00 10 [Adjust 480i Comp1]
  4. xb 00 60 [RGB Input (1024*768)]
  5. ad 00 10 [Adjust 1024*768 RGB]
  6. aa 00 90 End Adjust mode
Function Check
Check display and sound.  Check Input and Signal items.
  1. TV
  2. AV (SCART1/SCART2/ CVBS)
  3. COMPONENT (480i)
  4. RGB (PC : 1024 x 768 @ 60hz)
  5. HDMI
  6. PC Audio In
  7. Display and Sound check is executed by Remote control.
Caution:  Not to push the "INSTOP" key after completion if the function inspection.