Saturday, March 07, 2015

SAMSUNG LNT4061F - LNT4661F SERVICE MODE

SAMSUNG LNT4061F - LNT4661F

LCD TV


 SERVICE MODE 

General Alignment Instruction
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 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.
Entering Factory Mode

Power OFF > MUTE > 1 > 8 > 2 > Power On

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-MUTE-1-8-2-POWER ON 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.
Note : If you fail to enter service mode, repeat steps 1 and 2 above.
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. (Refer to Table 1, 2.) 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.
- Set Aging time : 60min
- Calibration and Manual setting for WB adjustment.
HDMI : Calibration at #24 Chessboard Pattern > Manual adjustment #92 pattern (720p)
COMP: Calibration at #24 Chessboard Pattern > Manual adjustment at #92 pattern (720p)
CVBS: Calibration at #24 Chessboard Pattern > Manual adjustment at #92 pattern (NTSC)
- If finishing in HDMI mode, adjustment coordinate is almost same in AV/COMP mode.
USB Download Method
1. Insert a USB drive containing the firmware upgrade into the WISELINK port on the side of the TV.
2.Press the MENU button to display the menu. Press the UP OR DOWN button to select Setup, then press the ENTER button.
3. Press the UP or DOWN  button to select Software upgrade, then press the ENTER button.
4. Press the UP or DOWN  button to select USB Upgrade, then press the ENTER button. The message Scanning for USB... It may take up to 30 seconds is displayed. Please be careful to not disconnect the power or remove the USB drive while upgrades are being applied. The TV will shut off and turn on automatically after completing the firmware upgrade. Please check the firmware version after the upgrades are complete.
* How to check Program Version
1. Press " MENU "
2. Select " SETUP "
3. Select " INFORMATION HELP "
4. Highlight " ON " option
5. Press " INFO " button on the remote control.
STANDBY MICOM SCHEMATIC 
CLICK ON THE IMAGE TO ZOOM IN