Text preview for : Alignment & Adjustment.pdf part of Samsung LE26R71B, LE26R72B, LE26R75B, LE32R71B Service Manual TFT-LCD TV - [16 File] Part 1/7 - (mod. LE32R72B, LE32R75B, LE32R76B, LE37R72B, LE40R71B, LE40R72B, LE40R75B, LE40R76B)



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3 Alignments and Adjustments


3 Alignments and Adjustments

3-1 Service Instruction
1. Usually, a color TV-VCR 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 aganist shock hazard, use an isolation transform.




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3 Alignments and Adjustments

3-2 How to Access Service Mode
3-2-1 Entering Factory Mode
1. To enter "Service Mode" Press the remote -control keys in this sequence :
- If you do not have Factory remote - control




- If you have Factory remote - control




- The buttons are active in the service mode.
1. Remote - Control Key : Power, Arrow Up, Arrow Down, Arrow Left
Arrow Right, Menu, Enter, Number Key(0~9)
2. Function - Control Key : Power, CH +, CH -, VOL +, VOL -,
Menu, TV/VIDEO(Enter)

3-2-2 Panel Check

Specially for LE26,32R7**, You have to check Panel Maker Because of different adjustments as follows.
First of all, Check the label rating!


1) Label Rating File




If Panel Mark is "A", Set the factory mode Panel BOM(Bill of material) : BN07-00247A
indicating as follows. Connector between Panel and Power Unit
: BN39-00603M (300mm)
Panel BOM(Bill of material) : BN07-00289A * Option Byte
Connector between Panel and Power Unit 1. Gamma "AMLCD"
: BN39-00603M (300mm) 2. Panel Option "AMLCD_INT"
If Panel Mark is "C" , Set the Factory mode
* Option Byte indicating as follows.
1. Gamma "AUO" Panel BOM(Bill of Material) : BN07-00207A
2. Panel Option "AUO" Connecotor between Panel and Powe Unit :
BN39-00659A(200mm)
If Panel Mark is "S" or not printed. * Option Byte
Set the factory mode indicating as follows. 1. Gamma " CMO "
2. Panel Option " CMO "


Others are same shown below.

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3-3 Factory Data
1. Calibration
2. Option Table XXXX XXXX
3. White Balance
4. SVP-FX
5. Option Block
6. STV8257/STA323W
7. YC Delay
8. Adjust
9. I2C Check
10. W/B MOVIE
11. Checksum
12. Reset
13. Spread Spectrum
T-MILMPEU-1006 (Main Micom Ver)
T-MILMPEUS-1002 (Sub Micom Ver)
Month / Day / Year / Hour / Min. / Sec.

1. Calibration
1) AV Calibration
2) DTV Calibration
3) PC Calibration

2. Option Table XXXX XXXX
Inch Option 32" Carrier Mute ON TTX Group Auto
Gamma OFF Language English Auto Power ON
Panel Option AMLCD_INT Auto FM ON ---- OFF
2HDMI OFF High Deviation OFF ---- G
Brt.Sensor OFF TTX ON ---- OFF
EnergySave ON TTX List ON Debug OFF
LBE/FBE OFF ACR OFF Ch.Table SUWON
FRC(Micronas) OFF Dynamic CE ON iDTV_Cntry UK
FRC(Samsung) OFF Dynamic Dimming ON Dynamic Contrast OFF
LNA OFF Tuner TOP 10




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3-4 Service Adjustment
3-4-1 White Balance - Calibration

If picture color is wrong, do calibration first.

Equipment : CA210, Patten : chess pattern
Execute calibration in Factory Mode
Source AV : PAL composite, Component : 1280*720/60Hz
PC : 1024*768/60Hz




( chess patten )



3-4-2 White Balance - Adjustment

If picture color is wrong, check White Balance condition.

Equipment : CA210, Patten : Toshiba
Adjust W/B in Factory Mode

Sub brightness and R/G/B Offset controls low light region
Sub contrast and R/G/B Gain controls high light region
Source AV : PAL composite, Component : 1280*720/60Hz
HDMI[DVI] : 1280*720/60Hz




[ Test Pattern : MSPG-945 Series Pattern #16 ]

*Color temperature
1500K +/-500, -6 ~-20 MPCD

*Color coordinate
H/L : 267/263 +/- 2 35.0 Ft +/- 2.0Ft
L/L : 270/260 +/- 3 1.5 Ft +/- 0.2Ft


Toshiba Patten

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3-4-3 Conditions for Measurement
1. On the basis of toshiba ABL pattern : High Light level (57 IRE)
- INPUT SIGNAL GENERATOR : MSPG-925LTH
* Mode NO 2 : [email protected] Hz
NO 6 : [email protected] Hz
NO 21 : [email protected] Hz
* Pattern NO 36 : 16 Color Pattern
NO 16 : Toshiba ABL Pattern
2. Optical measuring device : CA210 (FL)
Please use the MSPG-925 LTH generator for model LE26M51B/LE32M51B/LE40M51B/LE46M51B.

3-4-4 Method of Adjustment
1. Adjust the white balance of AV, Component and DVI Modes.
(AV Component)
a) Set the input to the mode in which the adjustment will be made
(RF DTV PC DVI).
* Input signal - VIDEO Mode : Model #2 (744*484 Mode), Pattern #16
- DTV,DVI Mode : Model #6 (1280*720 Mode), Pattern #16
- HDMI Mode: Model #6(1280*720 Mode), Pattern #16


b) Enter factory color control, confirm the data.


c) Adjust the low light. (Refer to table 1, 2 in adjustment position by mode)
- Adjust sub - Brightness to set the 'Y' value.
- Adjust red offset ('x') and blue offset ('y') to the color coordinates.
Picture 4-2 Toshiba ABL Pattern




Low light
Measurement point


* Do not adjust green offset data.


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.
* Do not adjust the green gain and sub-contrast (Y) data.




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3 Alignments and Adjustments

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.
* Do not adjust the green gain and sub-contrast (Y) data.

Picture 4-3 Toshiba ABL Pattern




High light
Measurement point




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3-5 Software Upgrade
3-5-1 How to Update Flash ROM
1. Installthe Flash Downloader
ConnectSet(Service Jack)and Jig Cable to execute Program Update.




2. Flash Downloader program update
-Before Turning on the set,Click "connect"which is under of OSD Screen!
-Turn on the Set.




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Memo




3-10