Samsung LN-P267W, LN-P327W Schematic

TFT-LCD TV/MONITOR

Chassis Model DU26UO LN-P267W DU32UO LN-P327W

Manual

SERVICE

TFT-LCD TV/MONITOR CONTENTS

1. Precautions

2. Product Specifications

3. Disassembly & Reassembly

4. Alignment & Adjustments

5. Troubleshooting

6. Exploded View & Parts List

7. Parts List

8. Block Diagram

9. Wiring Diagram

10. PCB Layout

11. Schematic Diagrams

12. Panel Description

Samsung Electronics Co.,Ltd.

416, Maetan-3Dong, Yeongtong-Gu, Suwon City, Kyungki-Do, Korea, 443-742 Printed in Korea P/N : BN82-00122A-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.

4 Alignments and Adjustments

LN-P267W/LN-P327W 4-1

4 Alignments and Adjustments

4-1 General Alignment Instuction

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.

4 Alignments and Adjustments

4-2 LN-P267W/LN-P327W

4-2 Factory Mode Adjustments

4-2-1 Entering Factory Mode

1. To enter “Service Mode” Press the remote -control keys in this sequence :

- If you do not have Factory remote - control

4-2-2 Factory Mode Tree

Adjust Reset

LN-P267W : T-DUO26NS-0012 07/12/2004_20:35:53 LN-P327W : T-DUO32NS-0022 07/07/2004_16:45:55

4 Alignments and Adjustments

LN-P267W/LN-P327W 4-3

Adjust Reset

LN-P267W : T-DUO26NS-0012 07/12/2004_20:35:53 LN-P327W : T-DUO32NS-0022 07/07/2004_16:45:55

4 Alignments and Adjustments

4-4 LN-P267W/LN-P327W

LN-P267W : T-DUO26NS-0012 07/12/2004_20:35:53 LN-P327W : T-DUO32NS-0022 07/07/2004_16:45:55

Adjust Reset

LN-P267W : T-DUO26NS-0012 07/12/2004_20:35:53 LN-P327W : T-DUO32NS-0022 07/07/2004_16:45:55

Adjust Reset

LN-P267W : T-DUO26NS-0012 07/12/2004_20:35:53 LN-P327W : T-DUO32NS-0022 07/07/2004_16:45:55

4 Alignments and Adjustments

LN-P267W/LN-P327W 4-5

DEP _Scale_R

4 Alignments and Adjustments

4-6 LN-P267W/LN-P327W

LN-P267W : T-DUO26NS-0012 07/12/2004_20:35:53 LN-P327W : T-DUO32NS-0022 07/07/2004_16:45:55

Adjust Reset

4 Alignments and Adjustments

LN-P267W/LN-P327W 4-7

LN-P267W : T-DUO26NS-0012 07/12/2004_20:35:53 LN-P327W : T-DUO32NS-0022 07/07/2004_16:45:55

4 Alignments and Adjustments

4-8 LN-P267W/LN-P327W

4 Alignments and Adjustments

LN-P267W/LN-P327W 4-9

LN-P267W : T-DUO26NS-0012 07/12/2004_20:35:53

* Unless otherwise specifid, do not adjust data in Factory Mode. * Data may be changed for display improvement.

LN-P327W : T-DUO32NS-0022 07/07/2004_16:45:55

LN-P267W : T-DUO26NS-0012 07/12/2004_20:35:53 LN-P327W : T-DUO32NS-0022 07/07/2004_16:45:55

4 Alignments and Adjustments

4-10 LN-P267W/LN-P327W

4-3 White Balance Adjustment

1. In factory mode (1, 3, 6), you can adjust the white balance.

2. As the adjustment and data values differ depending on input sources, different adjustments are requried for RF, DTV (Component 1, 2) and PC/DVI modes.

3. Optimum condition data for each mode are saved as default values. (Refer to Table 2, 3)

4. As the RF mode is applied with the same vlaues as for VIDEO and S-VIDEO, adjustment can be made in any of RF, VIDEO and S-VIDEO modes.

Table 4-1. White Balance Setting Conditions

Table 4-2. Color Control Default Value

Table 4-3. ADC Default Value

176 173 196 140 138 133 5 2

195 201 218 124 139 108

4 Alignments and Adjustments

LN-P267W/LN-P327W 4-11

4-3-1 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 NO 21 : 1024X768@60 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 LT26A33W.

4-3-2 Method of Adjustment

1. Adjust the basic level of DTV and PC input signals. a) Set the input to the mode in which the adjustment will be made (DTV PC ).

* Input signal - DTV Mode : Model #6 (1280*720 Mode), Pattern #36

- PC Mode : Model #21 (1024*768 Mode), Pattern #16 (Picture 4-1)

b) Enter factory Calibration, confirm the ADC data (DTV, PC Mode Only).

* ADC default value : Table 4-3.

2. Adjust the white balance of RF, DTV, PC and DVI Modes. a) Set the input to the mode in which the adjustment will be made (RF DTV PC DVI).

* Input signal - VIDEO Mode : Model #1 (744*484 Mode), Pattern #16

- DTV,DVI Mode : Model #6 (1280*720 Mode), Pattern #16

- PC Mode : Model #21 (1024*768 Mode), Pattern #16

b) Enter factory color control, confirm the data.

Picture 4-1 Toshiba ABL Pattern

4 Alignments and Adjustments

4-12 LN-P267W/LN-P327W

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. * 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.

Picture 4-2 Toshiba ABL Pattern

Picture 4-3 Toshiba ABL Pattern

Low light Measurement point

High light Measurement point

4 Alignments and Adjustments

LN-P267W/LN-P327W 4-13

4-3-4 PW565

* Below figures are for contrast adjustment of PW565 (IC565). Do not change the data.

Sharpness 30

4-3-3 Option Table

* The default settings are most recommended for Option Data. Each data may be adjusted.

110 190

Xth_1 Xth_2

100

4 Alignments and Adjustments

4-14 LN-P267W/LN-P327W

176 173 196 140 138 133

195 201 218 124 139 108

4-3-5 VPC 3230-MAIN

* Data may be adjusted.

4-3-6 ADC

*Adjust the R(Pr), G(Y), B(Pb) gain and offset to the basic level of DTV and PC Input signals.

4 Alignments and Adjustments

LN-P267W/LN-P327W 4-15

4-3-8 MDIN-150

* Control the specify item that a output signals (RF, CVBS, S-VHS Modes) of MDIN-150 (IC405). * This data can be changed without notice.

4-3-9 3D Comb

* Control the specify item that a input signals (RF, CVBS, S-VHS Modes) of D64083 (IC303). * This data can be changed without notice.

4-3-10 Test Pattern

* Use below test patters to demonstrate the image display of PW565 (IC602).

1) Luma Ramp (16 step)

2) Luma Ramp (128 Step)

3) White 16

4) White 240

5) Color Bar

6) RGB Ramp (32 Step)

4-3-11Check sum

* XXXX : Displays the current check sum size of the MICOM.

(Varies depending on program update)

4-3-12 Reset

* Initializes the data in the MICOM. (Set to default value)

Use ‘Reset’ to restore adjustmints made in Factory Mode to the original settings.

4-3-13 T_NPL26NUS_0400 03/30/2004 9:19:40

* Displays the MICOM program version

4-3-7 DNIe

* Control the specify item that a output signals of scalar (PW565). * This data can be changed without notice.

Mod

Data

ttern_S_S

DEP_GaGa

NE_

TH2

_Lim

itY

125

DEP_GaGa

CTE_H_mi

NR_

125

DEP_GaGa

P_SCALE

NR_

DEP_GaGa

ALEMAXAX_Y_Y

DEP_GaGa

SCALEM

AX_

DEP

SCALEMI

DEP

Sup_ScSc

ALEM

IN_C

WTE_

MCCT_

SCALENOIOI

ap_SEL

ALENOISE_C

100

_GainMaxax

Y_TH_EDG

NE_

Mod

e Data

Pattern

NRNR_Lim NR_

NR_ SCSCALEM SCALEM

SCALEMI

SCSCALEM SCALEN SCSCALENOISE_C

Y_Y_TH_HPF 7 BS_GainM

Y_TH_EDG

EL 0 DEP_

itY

LimitC 125

SEL

AX_

C 48

N_Y 16

IN_C

SE_Y 72

E 5 NE_

125

2 DEP_

100

DEP DEP

MoMode DaData MoMode Data

in1_1_X 12 DEP_ DEP_

DEP_

_SuSup_p_ScScaleTH1 _Sup_

WTE_

DCDCE_E_AdAdap_SEL

in1_1_Y 30

in2_2_X 5 DEDEP_SCALE

in2_2_Y 45

in3_3_X 3

aleTHF

MCCT_

BSBS_Tilt 90

FAC 15150

Core 3

37370

NE_

RTH2

CTE_H_mi

n 6

_R 80

4 Alignments and Adjustments

4-16 LN-P267W/LN-P327W

4-4

How to use SW(FlashupgradNT) for LN-P267W/LN-P327W Set progr am update

1. Store program practice file in new folder.

2. Connect Set and Jig Cable to execute Program Update.

-Refer to the Picture 4-4 attachment

3. After completing the JIG Cable connection, store Update practice program (hex file 3EA) in new folder. (guiR, romcode, factoryGui).

4. Click FlashupgradNT.exe icon 2 times and execute it.

-Refer to Picture 4-1, 4-2

CLICLICK

Picture 4-4

Picture 4-5

4 Alignments and Adjustments

LN-P267W/LN-P327W 4-17

CLICLICK

Picture 4-6

Picture 4-7

5. Select Full.inf in Flash. (flaher, romcode, guir, factorygui items look in Files To)

-Refer to Picture 4-3, 4-4

4 Alignments and Adjustments

4-18 LN-P267W/LN-P327W

CLICLICK

Picture 4-8

CLICLICK

Picture 4-9

6. Click the “Flash” that is under right of OSD screen. (if warning message comes out, Click the “Yes”(Y).)

-Refer to Picture 4-5

7. After acting No.6, extract Set’s Power Cable and connect it again.

8. During acting No.7, program Update sledding is marked sequentially on OSD screen.

9. After Program Update completion, Extract a Set’s Power Cord and connect it again.

10. If Power turn on and Picture display, Program Update is Completed.

4 Alignments and Adjustments

LN-P267W/LN-P327W 4-19

1. Connect with PC Pattern Generator’s output.(N0.2) (Connect only when you want to see PC screen.)

2. Connect with JIG Output (15 pins) and PC Input (15 pins) terminal.(No.1)

3. Connect with COM Port1 of PC (9 Pin, No.3).

4. Connect 14V 4.5A Adaptor Cable.(No.4)

Picture 4-10

1. JIG & Set Connection Cable (15 Pin)

2. PC Signal Input Port.

3. JIG & PC Connection Cable (9 Pin)

4. JIG Power Adaptor(DC 14V) & Power Cord.

5. JIG PBA ASS’Y

4 Alignments and Adjustments

4-20 LN-P267W/LN-P327W

Memo

8 Block Diagrams

LN-P267W/LN-P327W 8-1

8 Block Diagram

❈ This Document can not be used without Samsung’s authorization.

8-1 Signal Path Block Diag ram

+ 53 hidden pages