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 4 February 2019

SAMSUNG P27720HD LCD MONITOR – HOW TO ENTER SERVICE MODE – SELF CHECK

P27720HD Samsung LCD monitor – How to enter service mode – Self check


Self check mode and service mode – Samsung P2770HD LCD monitor
Self-Test Feature Check
The monitor provides a self test feature that allows you to check whether your monitor is functioning properly.
1. Turn off both your computer and the monitor.
2. Unplug the video cable from the back of the computer
3. Turn on the monitor.  If the monitor is functioning properly, you will see a box displayed.
This display box appears during normal operation if the video cable becomes disconnected or damaged.
4. Turn off your monitor and reconnect the video cable; then turn on both your computer and the monitor.  If your monitor screen remains blank after using the previous procedure, check your video controller and computer system; your monitor is functioning properly.
Warning Messages
If there is something wrong with the input signal, a message appears on the screen or the screen goes blank although the power indicator LED is still on. The message may indicate that the monitor is out of scan range or that you need to check the signal cable.
Environment
The location and the position of the monitor may influence the quality and other features of the monitor.  If there are any sub woofer speakers near the monitor, unplug and relocate the woofer to another room.  Remove all electronic devices such as radios, fans, clocks and telephones that are within 3 feet (one meter) of the monitor.
A monitor recreates visual signals received from the computer.
Therefore, if there is trouble with the computer or the video card, this can cause the monitor to become blank, have poor coloring, noise, Video mode not supported, etc. In this case, first check the source of the problem, and then contact the Service Center or your dealer.
If there is no image on the screen or a “Not Optimum Mode”, “Recommended Mode 1920 X 1080 60Hz” message comes up, disconnect the cable from the computer while the monitor is still powered on.
- If there is a message coming up on the screen or if the screen goes white, this means the monitor is in working condition.
- In this case, check the computer for trouble.
Entering Factory Mode [Service mode]
To enter “Service Mode” Press the remote -control keys in this sequence :
- If you do not have Factory remote – control
The buttons that are active in the service mode. (See the above picture)
1. Remote - Control Key : Power, Arrow Up, Arrow Down, Arrow Left Arrow Right, Menu, Enter, Number Key(0~9)
2. Function - Control Key : Source(ENTER), Menu, VOL-, VOL+, CH-, CH+, POWER.
Self check feature test