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 !

Monday 25 March 2019

LG 55LM6700 3D MODEL NAME AND SERIAL NUMBER EDID DATA AUTO DOWNLOAD MANUAL WHITE BALANCE ADJUSTMENT AND MORE

LG 55LM6700 3D MODEL NAME AND SERIAL NUMBER EDID DATA AUTO DOWNLOAD MANUAL WHITE BALANCE ADJUSTMENT AND MORE


MODEL NAME AND SERIAL NUMBER D/L
  • Press "Power on" key of service remote control.  (Baud rate : 115200 bps)
  • Connect RS232 Signal Cable to RS-232 Jack.
  • Write Serial number by use RS-232.
  • Must check the serial number at the Product/Service info.. (menu key → red key → select product/Service info).

SIGNAL TABLE
  • CMD : A0h
  • LENGTH : 85~94h (1~16 bytes)
  • ADH : EEPROM Sub Address high (00~1F)
  • ADL : EEPROM Sub Address low (00~FF)
  • Data : Write data
  • CS : CMD + LENGTH + ADH + ADL + Data_1 +...+ Data_n
  • Delay : 20ms
COMAND TEST
  • Adjust mode à EEPROM WRITE
  • CMD(hex) àA0h
  • LENGTH(hex) à 84h+n
  • Description à Description
Description
FOS Default write : <7mode data> write
Vtotal, V_Frequency, Sync_Polarity, Htotal, Hstart, Vstart, 0, Phase
Data write : Model Name and Serial Number write in EEPROM,.
METHOD & NOTICE
  • Serial number D/L is using of scan equipment.
  • Setting of scan equipment operated by Manufacturing Technology Group.
  • Serial number D/L must be conformed when it is produced in production line, because serial number D/L is mandatory by D-book 4.0.
Manual Download(Model Name and Serial Number)
If the TV set is downloaded by OTA or Service man, sometimes model name or serial number is initialized.(Not always)
There is impossible to download by bar code scan, so It need Manual download.
  1. Press the "Instart" key of Adjustment remote control.
  2. Go to the menu "7.Model Number D/L" like below photo.
  3. Input the Factory model name or Serial number like photo.
  4. Check the model name Instart menu. → Factory name displayed.
  5. Check the Product/Service info..(Menu Key → Support → Select Product/Service Info.) → Buyer model displayed.

EDID DATA
All Data : HEXA Value
Changeable Data :
*: Serial No : Controlled / Data:01
**: Month : Controlled / Data:00
***: Year : Controlled
****: Check sum
AUTO DOWNLOAD
  • When you turn on the TV, EDID will set automatically. Not operate
               Caution:  Never connect HDMI & D-sub Cable when EDID downloaded.

EDID DATA & MODEL OPTION DOWNLOAD [RS232]

NO
ITEM
CMD-1
CMD-2
DATA
DATA

Enter
download Mode
Download
‘Mode In’
A
A
0
0
When transfer the ‘Mode In’,
Carry the command.
EDID data and
Model option
download
ADC
Adjust
A
E
00
10
Automatically adjustment
(The use of a internal pattern)
MANUAL DOWNLOAD
  • Use the proper signal cable for EDID Download
  • Analog EDID : Pin3 exists
  • Digital EDID : Pin3 exists
  • Never connect HDMI & D-sub Cable at the same time.
  • Use the proper cables below for EDID Writing.
  • Download HDMI1, HDMI2 separately because HDMI1 is different from HDMI2.
Posted By: FRANK at 03:10
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