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 30 March 2019

SAMSUNG LA32C450 - LA26C450 - LA22C450 - HOW TO ENTER SERVICE MODE AND TROUBLESHOOTING

LA22C450E1 - LA26C450E1 - LA32C450E1 _SAMSUNG LCD TV - Service Mode_Troubleshooting
HOW TO ENTER SERVICE MODE 
> Turn the power off and set to stand-by mode
> Press the remote buttons in this order to turn the set on.
> The set turns on and enters service mode. This may take approximately 20 seconds.
> 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.
Buttons operations within Service Mode
Direction Keys UP/DN - Item Selection by Moving the Cursor
Direction Keys L/R - Data Increase / Decrease for the Selected Item
Source - Cycles through the active input source that are connected to the unit.
FAULTS & CHECKS
No Power (SX1)
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 appear 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.
Audio is normal but no picture is displayed on the screen.
* Check the PC source.  Check the IC1102(SX1).
* Check the HDMI source.  Check the IC1102(SX1) , Check the HDMI switch.
* Check the Tuner CVBS source
* Check the M-star
* Check the Video Source
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.
No Power (X4)
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 appear 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.
No Video_Analog PC signal (X4)
Audio is normal but no picture is displayed on the screen.
* Check the PC source
* Check the Arsenal, Check the Chelsea.
This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected.
No video_HDMI1, 2, 3, 4 - Digital signal (X4)
Check the HDMI source.
Check the HDMI switch, Check the Chelsea.
No Video_Tuner - CVBS (X4)
Check the Tuner CVBS source.
Check the Tuner, Check the Chelsea.
No Video_Video CVBS (X4)
Audio is normal but no picture is displayed on the screen.
* Check the Video CVBS source
* Check the Chelsea.
This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected.
No Video_Component (X4)
Check the Component source
Check the Chelsea.
No Sound (X4)
Video is normal / when the speaker connectors are disconnected or damaged.
When the sound processing part of the Main Board is not functioning.
Speaker defect.
Posted By: FRANK at 03:06
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