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!

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All posts are presented here for informative, historical and educative purposes as applicable within fair use. NOTHING HERE IS FOR SALE !

Saturday, 9 March 2019

SAMSUNG LE32B53*** - LE37B53*** - LE40B53*** - LE46B53*** SERVICE MODE AND TROUBLE SHOOTING

SAMSUNG LE32B53*** - LE37B53*** - LE40B53*** - LE46B53*** SERVICE MODE AND TROUBLE SHOOTING


SAMSUNG LE32B53*** - LE37B53*** - LE40B53*** - LE46B53*** 


SERVICE MODE AND TROUBLE SHOOTING 

TROUBLE SHOOTING 
No Power
Symptom
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.
Checkpoints
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)
Symptom
Audio is normal but no picture is displayed on the screen.
Checkpoints
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 (HDMI 1, 2, 3 - Digital Signal)
Symptom
Audio is normal but no picture is displayed on the screen.
Checkpoints
Check the HDMI source.
Check the HDMI switch, Check the Chelsea.
This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected.
No Video (Tuner_CVBS)
Symptom
Audio is normal but no picture is displayed on the screen.
Checkpoints
Check the Tuner CVBS source.
Check the Tuner, Check the Chelsea.
This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected.
No Video (Tuner DTV)
Symptom
Audio is normal but no picture is displayed on the screen.
Checkpoints
Check the DTV source.
Check the Tuner, Check the Chelsea.
This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected.
No Video (Video CVBS)
Symptom
Audio is normal but no picture is displayed on the screen.
Checkpoints
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)
Symptom
Audio is normal but no picture is displayed on the screen.
Checkpoints
Check the Component source
Check the chelsea.
This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected.
No Sound
Symptom
Video is normal but there is no sound..
Checkpoints
When the speaker connectors are disconnected or damaged.
When the sound processing part of the Main Board is not functioning.
Speaker defect..

General Alignment Instuction
1. Usually, a color LCD-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 backcover 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.

Factory Mode Adjustments
Entering Factory Mode
To enter ‘Service Mode’ Press the remote -control keys in this sequence :
- If you do not have Factory remote - control
Power OFF > INFO > MENU >  MUTE > POWER ON
How to Access Service Mode
Using the Customer Remote
Turn the power off and set to stand-by mode
Press the remote buttons in this order; POWER OFF- INFO - MENU - MUTE 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.
White Ratio (Balance) Adjustment
1.You can adjust the white ratio in factory mode (1:Calibration, 3:White-Balance).
2.Since the adjustment value and the data value vary depending on the input source, you have to adjust these in CVBS, Component 1 and HDMI 1 modes.
3. The optimal values for each mode are configured by default. It varies with Panel’s size and Specification.
- Equipment : CS-210
- Pattern: MIK K-7256 #92 “Flat W/B Pattern” as standard
- Use other equipment only after comparing the result with that of the Master equipment.
USB Download Method
Samsung may offer upgrades for TV’s firmware in the future. Please contact the Samsung call center to receive information about downloading upgrades and using a USB drive. Upgrades will be possible by connecting a USB drive to the USB port located on your TV.
1.Insert a USB drive containing the firmware upgrade into the USB port on the rear of the TV.
2.Press the MENU button to display the menu. Press the or button to select “Support”, then press the ENTER button.
3.Press the or button to select “SW Upgrade”, then press the ENTER button.
4. The message “Scanning for USB. It may take up to 30 seconds.” is displayed.
The message “Upgrade version XXXX to version XXXX? The system will be reset after upgrade.” is displayed.
Press the or to select the “OK”, then press the ENTER button.
Please be careful to not disconnect the power or remove the USB drive while upgrades are being applied. The TV will turn off and turn on automatically after completing the firmware upgrade. Please check the firmware version after the upgrades are complete. When software is upgraded, video and audio settings you have made will return to their default (factory) settings. We recommend you write down your settings so that you can easily reset them after the upgrade.
HOW TO UPGRADE WITH JIG TV Main S/W
1.Open the Flash Downloader.
2. Connect Mstar JIG to the TV Set with D-SUB Cable.
3, JIG connection is OK
4. Select the code
5. Choose the S/W
6. Select AUTO button
7.Select RUN button
8. Check the Verify OK, Select DIS Con Button And disconnect the JIG
Posted By: FRANK at 04:17
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