Samsung LE 15S51B Service Manual

							TFT-LCD TV
Chassis Model
GPU15KE LE15S51BP
GPU20KE LE20S51BP
Manual
SERVICE
TFT-LCD TVFashion Feature
- Easy-to-use remote control
- Easy-to-use on-screen menu system
- Automatic timer to turn the TV on and off
- Automatic channel tuning for up to 194 
channels. (Air : 69 , STD : 125 )
- A special filter to reduce or eliminate 
reception problems
- Fine tuning control for the sharpest picture
possible
- Built-in, dual channel speakers
- Headphone jack for private listening
 
						

							Samsung Electronics Co.,Ltd.
416, Maetan-3Dong, Yeongtong-Gu, Suwon City, 
Gyeonggi-Do, Korea, 443-742
Printed in Korea
P/N : BN82-00131J-00
URL : http://itself.sec.samsung.co.kr/
- This Service Manual is a property of
Samsung Electronics Co., Ltd. 
Any unauthorized use of Manual can be
punished under applicable International
and/or domestic law.
 
						

							3 Alignments and Adjustments
3-1
3 Alignments and Adjustments
3-1 Ser vice 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.
 
						

							3 Alignments and Adjustments
3-2
3-2 How to Access Ser vice Mode
3-2-1 Entering Factor y 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
3-3 Factor y Data 
PC Auto Color 
Video Auto Color
Reset
DLC/MWE Part
SFR PART
Sub Adjust
UOC Adjust
Option
Checksum
Panel Information
Bus Stop     : OFF Service
2005/06/23
T-pls25nus-0906¢”¢”
¢”¢”
¢”¢”
¢”¢”
¢”¢”
¢”¢”
¢”¢”
¢”¢”
¢”¢”
¢”¢”
¢”¢”
Adjust
PC Auto Color
Option
Checksum
Panel Information
Reset
Bus Stop Service Function
2005/04/20
TM-BRHMS20WW-0714¢”¢”¢”¢”¢”¢”¢”¢”¢”¢”¢”¢”
PC Auto Color 
Video Auto Color
Reset
DLC/MWE Part
SFR PART
Sub Adjust
UOC Adjust
Option
Checksum
Panel Information
Bus Stop     : OFF Service
2005/04/20
TM-BRHMS20WW-0714¢”¢”¢”¢”¢”¢”¢”¢”¢”¢”¢”¢”¢”¢”¢”¢”¢”¢”¢”¢”¢”¢”
-. OSD which the basic adjustment is added.
PC Auto Color 
Video Auto Color
Reset
DLC/MWE Part
SFR PART
Sub Adjust
UOC Adjust
Option
Checksum
Panel Information
Bus Stop     : OFF
*.  2005/06/23: MCU firmware date.
*.  
T-PLUS25NUS-0906: MCU firmware version information
(this information must be appended due to a compatibility problem report.)
1) Reset: Factory reset
2) Bus Stop: The communication Line ON / OFF        
Move to the ( -) / (+) key, select the Enter key. 
3) Auto adjustment 
4) PC Auto Color/ Video Auto Color :in case that color 
of all screen is wrong, excute the PC Auto color at 
16 gray pattern(refer to attach left 16gray pattern)
5) Checksum: MCU firmware checksum information 
(this information must be appended due to a compatibility problem report.)
 
						

							3 Alignments and Adjustments
3-3
NVRAM Reset                            ¢”¢”
DLC- 0-10 0
MWE- 0-1 1
Demo 0-1 0
Brightness+ 0-255 100
Contrast+ 0-255 113
Sharpness+ -10-10 1
Hue+ 0-100 50
Saturation+ 0-255 125
R Offset 46
G Offset 50
B Offset 56
R Gain 58
G Gain 50
B Gain 51   DLC/MWE Part
DCXO Sel. 0
DCXO Tune 64
OVMADAPT 0-1 1
OVMTHR 0-3 2
IF Demod 0-63 38
F FI 0-1 0  
R0:77 R1:71            R2:81
R3:18                R4:0              R5:1F SFR Part
R Blk Lvl+ 0-63 28
G Blk Lvl+ 0-63 20
Peak Frq/DLY+0-3 0
Peak+ 0-63 40
Soft Clp Lvl- 0-3 0
W Limit- 0-15 8
R White Pnt+ 0-63 37
G White Pnt+ 0-63 31
B White Pnt+ 0-63 31
AGC T-O- 0-63 23 Sub Adjust
6) Dynamic Luma Adjustment
 -   : RF, AV, S_Video -> all store
 +  : RF, AV, S_Video -> apart store
7) Special Function Register
 
						

							3 Alignments and Adjustments
3-4
BKS- 0-1 1
WSx- 0-3 2
0    0    0    0    0    20    20 2
0   20 20 20 20 20 20 20 2
0  20  20 20 19  26 …..    UOC Adjust
   
           
               
 
    
8) UOC Adjustment
BKS : Black stretch
Wsx : White stretch
9) Option: Spread Step / Spread Span (for EMI test )
10) Panel Information  
various function are included in information.
-  Monitor On Time : Power On Time
-  Panel Cycle : Panel On/off time (Power off, Mode 
change, DPMS on/off ...)
-  Panel : Panel on Time
(when the panel is changed , select the Reset ) 
-  Lower lamp : Lower lamp on time
(when the Lower lamp is changed , select the Reset )
-  Upper lamp : Upper Lamp on time   
(when the Upper Lamp is changed , select the Reset)
 
						

							3 Alignments and Adjustments
3-5
3-4-1 EDID input method
3-4 Ser vice Adjustment
3-4-2 EDID input method (Windows Program)
-SAMSUNG LCD TV support the DDC control JIG.
-You can see the connection between PC and LCD TV.
1. Execute WinDDC.EXE
2. Click Open[F5]
 
						

							3 Alignments and Adjustments
3-6
3. Select Connected Port#1 and Click Next OK.
4. Select Connected Port#1 and Click Next OK.
Find file name :  15 inch : VE15
17 inch : VC17
20 inch : VC20
5. Click Next (OK) button.
6. Select enter button (on Key-Board) After Monitor S/N input.
 
						

							3 Alignments and Adjustments
3-7
8. Check DDC OK.
3-4-3 Micom ( TDA15001H) Program Upgrade
1. Program Upgrade Jig    
2. Connect the parallel Port    
 
						

							3 Alignments and Adjustments
3-8
3. Connect Jig to CN905 on PCB Assy
4. Click WISP± Icon on Computer
5. Check Automatic mode on. 
6. Click Browser  button : Select the 
Code , Click  Auto Execute button
Check Erase and Write OK In General 
window and check Verify OK in ISP status
window.