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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Friday 29 March 2019

THOMSON 52W610 HOW TO ENTER SERVICE MODE - CONVERGENCE ADJUSTMENTS

THOMSON 52W610 HOW TO ENTER SERVICE MODE - CONVERGENCE ADJUSTMENTS

Service mode & convergence adjustments _ Thomson 52TW610_ 52” Projection TV [PRTV]
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.
* Press Exit on the Remote control.
Everyday use menu can be accessed via Menu button. (Text and EPG not available)
Field Service Menu can be re-entered via Blue button.
In service mode
> The child lock function is re-initialized
> Clear any wake-up/sleep/memo/EPG timers
> Pin 8 of the scart plug has to be ignored.
> AV- Link WSS detection and letterbox detection (autoformat) have to be disabled.
> EPG and TELETEXT have to be disabled.
> Automatic standby functions, in case of no antenna signal have to be disabled.
> All passwords have to disabled.
> Installation Mode disabled.
> Default format and zoom.
> The Chassis Variant will be checked and stored
CONVERGENCE ADJUSTMENT PROCEDURE
For every point on the screen, each of the three beams has a specific correction possibility in both horizontal and vertical planes. To achieve this, three levels of adjustment are available in the Service Mode. The unit is also equipped with an alignment grid pattern generator incorporated on the convergence circuit board.  
IN SERVICE MODE Select the “CONVERGENCE
Select “LEVEL 1,2 or 3” menu line and LEVEL 1,2 or 3 ALIGNMENT menu will appear.
LEVEL 1 ALIGNMENT MENU
* Press the“ OK” button on the RCU to activate the Red-Green test grid pattern.
* Confirm that the Green geometry is correct.Green adjustable only at level 2 and 3.
* Press the“ RED” button on the RCU to activate the red test grid, the cursor will be set to the centre point on the red grid.
* Using the“ NAVIGATION” (“ up,“” down,“ ” left and “” right) buttons on the RCU, align the red central cursor position to the green centre grid reference point.  A long press on the associated“ NAVIGATION” button on the RCU will accelerate the step size of the adjustment.
* Press the“ OK” button on the RCU to advance to the next cursor position and repeat the alignment process until all twenty five (9th = screen bottom left) alignment position have been checked.
* Press the“ EXIT” button on the RCU to return to“ Level 1” menu.
* Select” RETURN” on the menu.
* Next select“ STORE” on the convergence menu.
Repeat the alignment procedure for“ BLUE” in pressing the blue button to activate blue-green test grid pattern.
LEVEL 2 ALIGNMENT MENU
> Press the“ OK” button on the RCU to activate the Green test grid pattern, this is used throughout the alignment procedure as a reference.
> Confirm that the Green geometry is correct.
> Press the“RED” button on the RCU to activate the red test grid, the cursor will be set to the centre point on the red grid.
> Using the“ NAVIGATION” (“up,“” down,“” left and “” right) buttons on the RCU, align the red central cursor position to the green center grid reference point.  A long press on the associated “NAVIGATION” button on the RCU will accelerate the step size of the adjustment.
> Press the“ OK” button on the RCU to advance to the next cursor position and repeat the alignment process until all twenty five (25th = screen bottom left) alignment position have been checked.
> Press the“ EXIT” button on the RCU to return to“ Level 2” menu.
> Select” RETURN” on the menu.
> Next select“ STORE” on the convergence menu.
Repeat the alignment procedure for“ BLUE
LEVEL 3 ALIGNMENT
Each one of the 195 alignment point can be reached by Using the NUMERICAL buttons 2 (up), 8 (down), 6 (right) and 4 (left) on the RCU to position the cursor on the screen.
Convergence alignment is done using the“ NAVIGATION” (“up,“ ” down,“” left and“” right) buttons on the RCU.
* Press the“EXIT” button on the RCU to return to“ Level 3” menu.
* Select “RETURN” on the menu.
* Next select “STORE” on the convergence menu.
[Once “Level 3” alignment is completed, do not use“ Level 2” otherwise all adjustments made in“ Level 3” will be ERASED.]
Convergence defaults
If the convergence alignment is completely wrong most adjustments can be made starting with the factory convergence values, these are stored in the NVM as default values.  Default Red/Green/Blue:All of the colours convergence default. Values are stored in the Convergence RAM IC.
Default Red
Default Green
Default Blue
Restore: copies the last stored values from the NVM to the convergence RAM IC.
Store: Copies all Convergence RAM values to the NVM.