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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Saturday, 23 February 2019

TCL LCD32B5H SERVICE MODE SERVICE MODE

TCL LCD32B5H SERVICE MODE Service Mode



INSTRUMENT ORIENTATION 

  1. Connect LCD TV, Chroma 2225 and VG848. set timing 137, pattern-1 on chroma 2225.  Chroma 7120's lens must aim at the center of the pattern.  The distance of Chroma 7120's lens and the center of the screen is 20cm +/- 1cm.
  2. To Enter Factory Mode.
  • After orientation is OK, set pattern  104 [Black Picture] on chroma 225.
  • Press [1=>9=>9=>9] on the remote to enter the Menu, on the left of the screen.
  • Then by (UP) key option to enter the menu.
PC MODE WHITE BALANCE ADJUSTMENT
  • To adjust white balance, select the color temperature [warm and cold] and enter the SON menu 
  • Set the channel temperature value and brightness on chroma 7120.  Set 313 329 450 [warm temp] on CH-3 and 313 297 450 [cold temp] on CH-4.  
  • Press Mode key on chroma 7120 to switch xyY mode
  • Use back sleeve on chroma 7120's lens to ensure no external ray.  
  • Set pattern 104 on chroma 2225.
  • Adjust 'Scaler' RB, GB, BB values to make sure brightness is lowest, and set pattern 105 on chroma 225, and adjust RG, GG, BG value to make the value displaying on chroma 7120 is about 100.  
  • Press 'Save' to save the data. 
  • Switch to CH-4, select 'cold' temp and then adjust it according above method, and press 'Save' to save the data.