Samsung Le 27t51b Service Manual

							3 Alignments and Adjustments
3-3 1. Calibration
2. Option Byte
3. W/B
4. VCTi
5. YC Delay
6. FLI5961
7. Adjust
8. Test Pattern
9. Chip Debugger
10. Check Sum
11. Spread Spectrum
12. HDCP
13. Reset
T-TRNPEU-0000 month day year time 
P-TRNPEU-0000
Panel On Time(Hour) 0000
5. YC Delay
RF PAL-B/G : 5
RF PAL-D/K : 6
RF PAL-I : 5
RF PAL-L/L : 5
RF SECAM-B/G : 2
RF SECAM-D/K : 0
RF SECAM-I : 2
RF SECAM-L/L : 0
RF NTSC 3.58 : 5
RF NTSC 4.43 : 5
AV PAL : 5
AV SECAM : 2
AV NTSC 3.58 : 5
AV NTSC 4.43 : 5
AV PAL 60  : 5
6. FLI5961 : Scaler IC Correct register
Component Calibration: Result DTV Calibration
PC Calibration : Result PC Calibration
ACC/ACM
TNR
Picture Enhance
7. Adjust
User Control lnitial
LNA PLUS
Hotel Option
11. Spread Spectrum
Spread Spectrum: on/off
Spread Spectrum Range: 2
Step : 63
8. Test Pattern : VCTi ICS own test patterns.
(Total 7 patterns)
10. Check Sum : 0000
12. HDCP : 0000
13. Reset
9. Password : Use IC Register Correction.
 
						

							3 Alignments and Adjustments
3-4
3-3 White Balance - Calibration
3-3-2 White Balance - Adjustment
3-3-1 White Balance -Calibration
3-3-3 Conditions for Measurement
1. CalibrationDTV Calibration
PC Calibration
(Calibration Condition refer to next page)
3. W/B
(low light) (hight light)
1. On the basis of toshiba ABL pattern : High Light level (57 IRE)
- INPUT SIGNAL GENERATOR : MSPG-925LTH
* Mode NO 1 : 744X484@60 Hz
NO 6 : 1280X720@60 Hz (Component 720P)
NO 21 : 1024X768@60 Hz
* 
PatternNO 15 : Color bar
NO 16 : Toshiba ABL Pattern
NO 17 : 16 gray
2. Optical measuring device : CA210 (FL)
Please use the MSPG-925 LTH generator for model LNR2355W,LNR2755W,LNR3255W.(W/B adjustment Condition refer next page)
Sub Bright Sub Contrast
R offset R gain
G offset G gain
B offset B gain
 
						

							3 Alignments and Adjustments
3-5 2. Adjust the white balance of AV, Component and DVI Modes.
a) Set the input to the mode in which the adjustment will be made (AV          Component          DVI).
* Input signal - VIDEO Mode : Model #1 (744*484 Mode), Pattern #16
- Component, DVI Mode : Model #6 (1280*720 Mode), Pattern #16
b) Enter factory W/B.
c) Adjust the low light.
- Adjust sub - Brightness to set the Y value.
- Adjust red offset (x) and blue offset (y) to the color coordinates. ( x : 263, y : 267, Y : 1.3 ft)
* Do not adjust green offset data.
3-3-4 Method of Adjustment
1. Adjust the basic level of Component and PC input signals.
a) Set the input to the mode in which the adjustment will be made (Component          PC ).
* Input signal - Component Mode : Model #6 (1280*720 Mode), Pattern #15 (picture 4-1)
- PC Mode : Model #21 (1024*768 Mode), Pattern #17 (Picture 4-2)
b) Enter factory Calibration (DTV, PC Mode Only).
* DTV Calibration          Source change for PC PC Calibration
Picture 4-1 Color bar Picture 4-2 16gray
Picture 4-3 Toshiba ABL Pattern
Low light
Measurement point
 
						

							3 Alignments and Adjustments
3-6
Picture 4-4 Toshiba ABL Pattern
High light
Measurement point
d) Adjust the high light. (Refer to table 1, 2 in adjustment position by mode)
- Adjust red gain (x) and blue gain (y) to the color coordinates. ( x : 263, y : 267 )
* Do not adjust the green gain and sub-contrast (Y) data.
 
						

							3 Alignments and Adjustments
3-7
3-4 TORINO Micom Update
3-4-1 Installing G-Probe
1. Uncompress GProbe5.1.0.18.zip.
2. Run GProbe5.1.0.18.exe.
3. The files are created in the C:
Program FilesGenesis MicrochipGProbe 5 folder.
4. Copy the ispoak_spi.hex file to the C:
Program FilesGenesis MicrochipGProbe 5 folder.
5. Uncompress FLI5961-AC_GProbe_S0006-CSC-33B.zip.
6. Three files are extracted (FLI5961.Chip.GProbe, FLI5961.chm, outputlog.txt).
7. Copy all 3 files to the C:
Program FilesGenesis MicrochipGProbe 5ChipDB folder.
8. Run GProbe.exe in the C:
Program FilesGenesis MicrochipGProbe 5 folder. The G-Probe program   
is created.

 
						

							3 Alignments and Adjustments
3-8
3-4-2 Connecting to the MAIN PCB
Switch off

Connect to the PCConnect to the MAIN PCB.

 
						

							3 Alignments and Adjustments
3-9
3-4-3 Update Procedures
1. Open mgm.txt in the C:Program FilesGenesis MicrochipGProbe 5 folder.
2. The following result will appear.
//
// Batch file to program a sPI serial flash using ISP.
// Moving the stack to high memory area is now taken care of in IROM
// through the Reset 0 command. Assumes the ISP driver is in the same
// directory as this file. Change ISP driver path in fastFlashWrite
// command, if different from current directory.
//
debugon
SetBuffer 0x2000 0x800
delay 200
Reset 0
delay 500
// SPI flash driver
RAMWrite ispoak_spi.hex
Run 0x500
delay 100
// Optional - Get Flash ID. The second parameter is a dont care
//FLASHCRC 0xff0000 0x20000
// Command delay for flash erase
SetDelay 1000 9000
FlashErase
// Command delay for flash write. This is for each flash write packet (upto 4 k Bytes)
SetDelay 1000 3000
// Change this line to point to a file in a different location, if needed
//fastFlashWrite C:
ProjOAKAPP-59xxdebugobj59xx_proj.hex
fastFlashWrite C:
C:Program FilesGenesis MicrochipGProbe 5T_TRNNUS.hex
// Optional - Get CRC of 128 kByte flash. For other sizes, change second parameter
// accordingly
//FLASHCRC 0x80000 0x20000
// to reset the monitor after programming the flash using DDC2BI ONLY:
// Un-comment the following three lines (PLEASE - FOR DDC2BI PORT SELECTED ONLY)
//0x8000=1
//0x8003=0
//0x8027=1
 
						

							The Micom program is to be copied to the folder marked in red and the name of the program is to be the
same as the file name marked in blue.
(If the Micom program is not in the folder marked in red, change the path to the folder which includes the
Micom program and then save the file.)
3. When completing all the procedures above, connect the Jig and the PCB, and run the G-Probe program.
After that
Enter test 10 as shown in the following figure and press Enter or click the Execute button.
If the result appears as shown in the following figure, it is properly connected.
3 Alignments and Adjustments
3-10
 
						

							3 Alignments and Adjustments
3-11
4. Enter batch mgm.txt as show in the following figure and press Enter or click the Execute button to 
update Micom.
If the MICOM update is successfully completed, the 
above message appears.
 
						

							11  Disassembly and Reassembly
11-1
11 Disassembly and Reassembly
This section of the service manual describes the disassembly and reassembly procedures for the
LE23T51B/LE27T51B/LE32T51B TFT-LCD monitors.
WARNING: This monitor contains electrostatically sensitive devices. Use caution when handling
these components.
(ONLY LE32T51B) Check the connector of POWER BOARD which are CNM 802, 803.
IF Panel MARK is A(AUO), The wire which is from PANEL INVERTER Must be 
connected into CNM 803.
IF Panel MARK is S(Sec), The wire which is from PANEL INVERTER Must be 
connected into CNM 802.
11-1  Disassembly
Cautions: 1. Disconnect the monitor from the power source before disassembly.
1. Place LCD-TV face down on cushioned table.
Remove 14 screws from the rear-cover and Remove stand.
2. Remove 2 screws from the cover-jack.
Lift up the rear-cover.