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 !

Saturday, 9 February 2019

THOMSON - 32LB220B4-U _ SERVICE MODE AND ADJUSTMENT PROCEDURE

THOMSON - 32LB220B4-U _ SERVICE MODE AND ADJUSTMENT PROCEDURE


TO ENTER SERVICE MODE

  • Switch the TV into “Standby” mode by pressing the Standby button on the RCU.  Wait till the TV goes into the standby.
  • Press the VOL- button and then the PR- button on the TV keyboard.  Hold them down for more than 8 seconds.
  • After the normal switch on time, when the 8 seconds have elapsed, the main service menu appears on the screen.
Note : In service mode :
Clear any wake-up/sleep/memo/EPG timers
First installation Mode is overridden.
Zoom and format are set to standard scanning
Front Panel lock mode has to be cancelled.
Pin 8 of the scart plug has to be ignored.
AV- Link WSS detection and letterbox detection has to be disabled (autoformat).
EPG and TELETEXT have to be disabled.
All passwords have to disabled.

TEMPORARY EXIT FROM SERVICE MODE
  • Press Exit on the Remote control.
  • Everyday use menu can be accessed via Menu button.
  • Field Service Menu can be re-entrered via Blue button.
EXITING FROM SERVICE MODE

 BY USING REMOTE CONTROL: 
  • Go to the point QUIT in the Field service Mode main menu.
  • Press “>” button.
  • TV mode.
  • Values or adjustments are no stored before exiting from service mode will not be written into the NVM.
BY USING ON|OFF KEY or STANDBY
  • Stand-by function or “off” with on/off key.
  • Values or adjustments are no stored before exiting from service mode will not be written into the NVM
NAVIGATION INSIDE SERVICE MODE

Select option:  “Change“ value  “ > “ or “ < “ button on the remote control.
“Change” value “Vol + or Vol –“ button on the remote control.
  • When the highlight is on the first line of a menu a press on the key display the previous page.
  • When the highlight is on the bottom line of a menu a press on the key display the next page.

  • When the highlight is on the first line of a menu a press on the key display the previous page.
  • When the highlight is on the bottom line of a menu a press on the key display the next page


  • When the highlight is on the first line of a menu a press on the key display the previous page.
  • When the highlight is on the bottom line of a menu a press on the key display the next page
Posted By: FRANK at 05:12
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