Master Electronics Repair !

Welcome to Master Electronics Repair! website.Here you will find:Service Modes, Circuit Diagrams,Service manuals, Firmware Update procedure, Disassemble procedure, Universal remote control setup codes, Troubleshooting, Diagnosing, Measuring, and more.... of many of LCD/LED TV/Displays,others various electronic apparates,trough many technical notes and tips/tricks to help repairing/fixing Troubles/ faults,for electrical technicians.This site helps you to save the Earth from electronic waste!

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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Note that if you don't find what you searched for, try it after a period of time; the site is a never ending job !

..............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 30 March 2019

GRUNDIG LENARO – SEDANCE – VIVANCE – HOW TO ENTER SERVICE MODE – SMPS SCHEMATIC

Lenaro 26 LXW 68-7731 IDTV GBG4500 / GBG4600 _ SEDANCE 26 LXW 68-6631 IDTV GBG5600 / GBG5700 _ Vivance 32-6731 DVB-T GBG3600 / GBG3700

SERVICE MODE

Calling up the Service Mode
* Press button " i " (INFO).
* Enter the code number "8500".

To Exit the Service Mode
* Press button "TXT".

Functions of the buttons
i           Call up the Dialog Center / close down the Menu
P+/P– Call up the dialogue line (point of menu)
◄/►    Call up the Menus / Changing the settings
TXT   Exit the Service Mode

Software Version Number

The software version number is shown on the upper part of the service menu, e.g:
SLM. 512G 02 T07
11/08/06 11: 08: 59
G: SLM. 064 04 T00

Program Search

* Press button " i " (MAIN MENU).
* Select "Setup" with the buttons P+ / P– and confirm with button "OK".
* Select "Auto-program" with the buttons P+/ P– and confirm with button "OK".
* Select the required Country with the buttons P+/ P–, ◄/► and confirm with button "OK".

[The auto program system stops at every station of acceptable reception quality (AFC and coincidence) and stores the station data and the respective standard automatically. The system then continues searching.]
*Pressing the " i " button stops the program search.

Hotel Mode
Maximum volume is limited and there is no access to "Program Table" and "Setup" at activated hotel mode.
Call up: " i " > "8500" > P+/ P– "OPTION 1" > ► > P+/ P– "HOTEL" > ◄/► "YES".
Maximum volume: " i " > "8500" > P+ / P– "OPTION 1" > ► > P+ / P– "HOTEL VOL" > ◄/► Value 0…63.

Special Functions at activated Hotel Mode
The maximum volume can be adjusted in the additionally menu item "Maxvol" in the sound menu.
In addition there is access to the menus "Preset List" and "Channel Settings" until the set is switched off (standby).
Call up: "i" > "4658"

Display
If no picture is visible because of a wrong panel is adjusted, you can change the setting by "blind" adjust.
The following sequence of operating steps must be repeated until the picture is shown on the panel.
Call up: " i " > "8500" > ► > " P– " 5 times > ► > "TXT" > switch set off and on.
If the picture is visible, then repeat the sequence once again and thereby adjust the correct type of panel (according to display label).

SMPS SCHEMATIC {Grundig & Beko}