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 !

Thursday, 7 February 2019

SAMSUNG TFT LED TV – UE22D5000 UE27D5000 – NO POWER – NO AUDIO - TROUBLESHOOTING

Samsung TFT LED TV – UE22D5000 UE27D5000 – No power – No audio - Troubleshooting

Samsung SMALL  UE22D5000NH UE27D5000NH UD5000 22 inch and 27 inch Troubleshooting Service Mode – Factory Mode
No power
The LEDs on the front panel do not work when connecting the power cord.
The SMPS relay does not work when connecting the power cord.
The units appears to be dead.
The IP relay or the LEDs on the front panel does not work when connecting the power cord if the cables are improperly connected or the Main Board or SMPS is not functioning. In this case, check the following:
Check the internal cable connection status inside the unit.
Check the fuses of each part.
Check the output voltage of SMPS.
Replace the Main Board.
CLICK ON THE PICTURES TO ZOOM IN
No Video (Analog PC signal)
Audio is normal but no picture is displayed on the screen.
Check the PC source
Check the Arsenal, Check the Main Chipset.
No video (HDMI 1- 2 - 3 - 4 - Digital signal)
Audio is normal but no picture is displayed on the screen.
Check the HDMI source.
Check the HDMI switch, Check the Main Chipset.
No Video (Tuner-CVBS)
Audio is normal but no picture is displayed on the screen.
Check the Tuner CVBS source.
Check the Tuner, Check the Main Chipset.
No Video (Tuner DTV)
Audio is normal but no picture is displayed on the screen.
Check the DTV source.
Check the Tuner, Check the Main Chipset.
No Video (Video CVBS)
Audio is normal but no picture is displayed on the screen.
Check the Video CVBS source
Check the Main Chipset.
This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected.
No Video (Component)
Audio is normal but no picture is displayed on the screen.
Check the Component source
Check the Main Chipset.
This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected.
No Sound
Video is normal but there is no sound.
When the speaker connectors are disconnected or damaged.
When the sound processing part of the Main Board is not functioning.
Speaker defect.
General Alignment Instruction
Usually, a color LED TV needs only slight touch-up adjustment upon installation.  Check the basic characteristics such as height, horizontal and vertical sync.
2. Use the specified test equipment or its equivalent.
3. Correct impedance matching is essential.
4. Avoid overload. Excessive signal from a sweep generator might overload the front-end of the TV.  When inserting signal markers, do not allow the marker generator to distort test result.
5. Connect the TV only to an AC power source with voltage and frequency as specified on the back cover nameplate.
6. Do not attempt to connect or disconnect any wire while the TV is turned on.  Make sure that the power cord is disconnected before replacing any parts.
7. To protect against shock hazard, use an isolation transformer.
How to Access Service Mode
Using the Customer Remote
1. Turn the power off and set to stand-by mode.
2. Press the remote buttons in this order; POWER OFF- INFO - MENU - MUTE to turn the set on.
3. The set turns on and enters service mode. This may take approximately 20 seconds.
4. Press the Power button to exit and store data in memory.   If you fail to enter service mode, repeat steps 1 and 2 above.
Initial SERVICE MODE DISPLAY State.
How to enter the hidden factory mode.
a. into the factory mode
b. move the tap to Advanced
c. key input : 0 + 0 + 0 + 0
** hidden menu : Advanced.
Remote control key functions during service mode
Direction Keys Up/Dn => Item Selection by Moving the Cursor
Direction Keys Left/Right =>  Data Increase / Decrease for the Selected Item
Source  => Cycles through the active input source that are connected to the unit.
Posted By: FRANK at 04:49
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