Sunday, February 01, 2015

SAMSUNG - LE23T51B - LE27T51B - LE32T51B SERVICE MODE AND AUDIO AMP CIRCUIT


SERVICE MODE AND AUDIO AMP CIRCUIT

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 à INFO à MENU à MUTE à Power On

Panel Check

Specially for LE32T51BX, You have to check Panel Maker Because of different adjustments as follows.
First of all, Check the label rating!
1) Label Rating File

* If not printed you could consider S(sec) panel mark.
2) If Panel Mark is "S", Set the factory mode indicating as follows.
* Option Byte
1. Panel Option : 32" AMLCD
If Panel Mark is "A", Set the factory mode indicating as follows.
* Option Byte
1. Panel Option : 32" AUO
Factory Mode Tree

 If you have Factory remote - control
[INFO] -> [FACTORY] to enter to service mode

1. Calibration
2. Option Byte
3. W/B
4. VCTi
5. YC Delay
6. FLI5961
7. Adjust
8. Test Pattern
9. Password
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

1. Calibration : W/B Calibration
AV Calibration
DTV Calibration
PC Calibration

2. Option byte : Setting option
Panel option : 23" AMLCD, 27" CMO,
32" AUO, 32" AMLCD
Gamma : on/off
Auto Power : on/off
Video Mute : 5
Language : English
Hotel Mode : off/on
LNA Plus : off/on
V-chip : off
Auto FM : off/on
High Deviation : off/on
TTX List : Flop/List
MCC : off/on
TTX Group : User OSD
DVI : on/off

3. W/B : Adjustment White Balance
Sub Bright : 128
R off set : 128
G off set : 128
B off set : 128
Sub contrast : 128
R gain : 128
G gain : 128
B gain : 128

4. VCTi : VCTi IC Correct register
VCTi Page 1
VCTi Page 2

RF PAL-B/G
RF PAL-D/K
RF PAL-I
RF PAL-L/L'
RF SECAM-B/G
RF SECAM-D/K
RF SECAM-I
RF SECAM-L/L'
RF NTSC 3.58
RF NTSC 4.43
AV PAL
AV SECAM
AV NTSC 3.58
AV NTSC 4.43
AV PAL 60
5
6
5
5
2
0
2
5
5
5
5
2
5
5
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

8. Test Pattern : VCTi IC'S own test patterns.
(Total 7 patterns)

9 . Password : Use IC Register Correction

10. Check Sum : 0000

11. Spread Spectrum
Spread Spectrum : on/off
Spread Spectrum Range : 2
Step : 63

12. HDCP : 0000

13. Reset

White Balance –Calibration
 Calibration
DTV Calibration
PC Calibratio

White Balance – Adjustment
W/B
Sub Bright
R offset
G offset
B offset
Sub Contrast
R gain
G gain
B gain


Conditions for Measurement

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
* Pattern NO 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

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
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.
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.
* (Only RE32T51BX) If Panel is AM-LCD, Y adjust 36FT/L.

AUDIO AMPLIFIER CIRCUIT 
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