Samsung LE19R86BD Schematic

TFT-LCD TV

Chassis GBP19SEN
Model LE19R86BD

Manual

SERVICE

TFT-LCD TV Fashion Feature

- Luxurious Slim Design

- Supreme Picture Quality

- Supreme Sound Quality

- Supreme Convenience Quality

- Convenience for Users

ii

Copyright

2007 by Samsung Electronics Co., Ltd.
All rights reserved.
This manual may not, in whole or in part, be copied,

photocopied, reproduced, translated, or converted to any
electronic or machine readable form without prior
written permission of Samsung Electronics Co., Ltd.

LE19R86BD Service Manual
First edition Sep 2007.
Printed in Korea.

Trademarks

Samsung is the registered trademark of Samsung
Electronics Co., Ltd.
LE19R86BD and Macmaster Cable Adapter are
trademarks of Samsung Electronics Co., Ltd.

Macintosh and Power Macintosh are trademarks of
Apple Computer, Inc.

All other trademarks are the property of their respective
owners.

Contents

Contents

2007 Samsung Electronics Co.,Ltd.

All rights reserved.

Printed in Korea
P/N : BN82-00186-00

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.

Area

GSPN(Global Service Partner Network)

North America
Latin America
CIS
Europe
China
Asia
Mideast & Africa

http://service.samsungportal.com
http://latin.samsungportal.com
http://cis.samsungportal.com
http://europe.samsungportal.com
http://china.samsungportal.com
http://asia.samsungportal.com
http://mea.samsungportal.com

Web Site

3 Alignments and Adjustments

3-1

3 Alignments and Adjustments

3-1 Ser vice Instr uction

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 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)

Power OFF

PICTURE ON

INFO

INFO

MENU

MUTE

FACTORY

Power ON

3 Alignments and Adjustments

3-3

3-3 Factory Data

1. Calibration

2. Option Table(Service)

3. White Balance

4. MST 69981

5. Option Block

6. Sound

7. YC Delay

8. Adjust

9. Bus Stop

10. W/B Movie

11. Checksum 0000

12. Reset

13. Spread Spectrum
T-JSM22PEUMD-XXXX (Main Micom Ver.)

Month / Date / Year / Hour / Min. / Sec.

1. Calibration

1) AV Calibration

2) Comp Calibration

3) PC Calibration

4) HDMI Calibration

2. Option Table(Service)

NO

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27

Item

Ready

Inch Option

Panel Vender

Panel Type

Model Option

Anynet+

Auto Power

Nordic
LNA Menu
TTX On/off

TTX List

Carrier Mute

High Devi

Volume Curve

HotPlug

HotPlugCtrl

HotPlugDelay

Hotel Option

Shop Mode

Color Space

PC Ident

Language

Ch Table

TTX Group

IDTV Country

PDP Filter

PDP Group

Range

Off

19
TN_INT
19CMO

BRD Plus

Off
On
On
Off
On

Flof

Off
Off

Small

On
On

12

Off
Off
On
On

English

Suwon

Lang OSD

UK

50"EU MRT

C5E_DMA

3 Alignments and Adjustments

3-4

3. White Balance

No

1
2
3
4
5
6
7
8

item

Sub Bright
Red Offset

Greem Offset

Blue Offset

Sub Contrast

Red Gain

Green Gain

Blue Gain

Value

128

128

140

128

4. MST 68981

1) ADC Calibration

NO

1
2
3
4
5
6
7
8

9
10
11
12
13
14

item

CVBS Y Gain

CVBS Y Offs

Ana Y Offs

Ana Pb Offs

Ana Pr Offs
Ana Y Gain

Ana Pb Gain

Ana Pr Gain

Out R Offs
Out G Offs

Out B Offs
Out R Gain
Out G Gain
Out B Gain

Value

128
128
127
128
128

90
90
90
62
62

62
116
116
116

2) Calibration Target
2-1) AV ADC Target

NO

1
2
3

item

Low
High

Delta

Value

17
234

3

3 Alignments and Adjustments

3-5

2-2) Comp ADC Target

NO

1
2
3

item

Low

High

Delta

Value

17

234

3

2-3) PC ADC Target

NO

1
2
3

item

Low

High

Delta

Value

1

254

3

2-4) AII RGB Target

NO

1
2
3

item

Low

High

Delta

Value

2

235

1

3) Sharpness

NO

1
2
3
4
5
6
7
8

9
10
11
12
13

item

H1 Gain
H2 Gain
H3 Gain
H4 Gain
V1 Gain
V2 Gain
D1 Gain

D2 Gain
Over Shoot2
Over Shoot3

Under Shoot2
Under Shoot3

Sub Color

Value

30
30
16
16
20
20
12
12
16
16
16
16
65

5. Option Block

1) FRC(Micronas)

2) FRC2X

3) FBE2

3 Alignments and Adjustments

3-6

NO

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26

item

Pattern Select

BS-On

B-Slope Gain

B-Tilt Min

B-Tilt Max

B-Tilt Slope

LFunc-Basis

HFunc-Basis
Mean-Offset1
Mean-Offset2

Mean Slope

Input Offset

Input Gain

ACR Offset

ACR Th1
ACR Th2

Skin Enable

Skin Tu

Skin Tv
M Skin Tu
M Skin Tv
Sub Color

M-Au-Sub Color
M-Wi-Sub Color

MW-Skin-Tu

MW-Skin-Tv

value

0

1
80
20

150
128
110
120

30

235
112
128
128

15
20

120

1

135
135
128
128
145
128
128
128
128

4) PDP Logic

NO

1
2
3
4
5
6
7
8

9
10
11
12
13

item

Pattern Select

CDC Sw

CDC Strengh Th

BRE Sw

FRC Repeat Mode

FRC DBG Mark On

FRC Bypass

CDC L Gain

CDC U Gain

Panel Type

Panel Inch
Panel Ber.

Logic Sw Ver.

Value

0

Off

1
Off
Off

0
Off

0

0

0

00 SD

N/A

00Y00M00D

3 Alignments and Adjustments

3-7

6. Sound

NO

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30

item

Saturation Mute

FM Prescale

AM Prescale
Nicam Prescale
FM M Prescale

SC1 Vol
SC2 Vol

Audio Delay

Audio Delay Time

Ch1 BW
Ch2 BW

Num of Check

Num of Double Check

Mono Weight

Stereo Weight

Dual Weight
BG M2S Threshold
DK M2S Threshold
BG S2M Threshold
DK S2M Threshold

FINE VOL

Detection Threshold

Ext Volume Scale

Ext Prescale Speaker

R2E Scart2 Offset

NTP 3000

NTP Master Volume

NTP PWM modulation

NTP DRC Thresh
NTP Speaker EQ

value

Off
24
20
24
20
20
20
On

8
2
1
1
5
1
1
1

144

80

176

0

20

0
0
0

14

243

26
On

3 Alignments and Adjustments

3-8

7. YC Delay

NO

1
2
3
4
5
6
7
8

9
10
11
12
13

item

PAL BG
PAL DK

PAL I

SECAM BG

SECAM DK

SECAM L
NTSC 358
NTSC 443

AV PAL

AV SECAM

AV NT358
AV NT443
AV PAL60

Value

17
17
17
17
17
17
17
17
17
17
17
17
17

8. Adjust

NO

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15
16
17
18
19

item

V Mute Time

Dynamic Contrast

Dynamic Dimming

Dynamic CE

LNA Plus

Megazine LNA

PixelShift Test

Debug

ACR
D-WatchDog
UART Select

FBE Select

Tuner

Tuner TOP Semco

Tuner TOP Alps

D.Gamma
M.Gamma

A-WatchDog

Hp Detect

value

10
On
Off
On

Off
Off

Normal

On
On
Off

FBE2X

ALPS

10

13

22
Off
Off

High

3 Alignments and Adjustments

3-9

9. Bus Stop

10. W/B Movie

11. Checksum

12. Reset

NO

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26

item

WB Movie

Color Mode

Color Tone

Msub Brigh
Msub Contr
W1_RGAIN
W1_BGAIN

W1_ROFFS
W1_BOFFS

W2_RGAIN
W2_BGAIN

W2_ROFFS
W2_BOFFS

NO_RGAIN
NO_BGAIN

NO_ROFFS
NO_BOFFS

C2_RGAIN

C2_BGAIN
C2_ROFFS
C2_BOFFS

Movie Contr

Movie Brigh
Movie Color

Movie Sharp

Mv BackLight

value

off
Movie
Cool1

128
128
157

72

127
129
159

57

128
128
140

91

127
128
115
145
128
128
100

45

55

75

10

NO

1
2
3
4
5
6

item

Spread Spectrum

Step1

Step2
Range1
Range2

FBE SSC

value

On

116

0
0

247

5

13. Spread Spectrum

3 Alignments and Adjustments

3-10

3-4 Ser vice 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

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

Toshiba Patten

[ 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

( chess patten )

3 Alignments and Adjustments

3-11

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 : 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

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.

* 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

Low light
Measurement point

3 Alignments and Adjustments

3-12

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

3 Alignments and Adjustments

3-13

3-5 Software Upgrade

3-5-1 How to Update Flash ROM

1. Install the Flash Downloader
Connector Set(D-SUB) and D-SUB cable to execute Program Update.

2. Flash Downloader program update

- Turn on the TV Set

- Click "Connect" icon on the MSTAR tool.

- Click "Read", and Choose a new S/W.

- Click "Auto", and "Run"

3 Alignments and Adjustments

3-14

Memo

7 Block Diagrams

7-1

7 Block Diagram

- This Document can not be used without Samsung’s authorization

7 Block Diagrams

7-2

Memo

13 Circuit Descriptions

13-1

13 Circuit Descriptions

13-1 Block description

RF IN

Scart

A/V

S-Video

Component

HDMI

PC

Main

Board

Panel
T-con

Board

Speaker

IR/LED

Signal
Power

Bordeaux consists of three main blocks

1. Main board : Video signal processing

2. IP board : Power supply & Inverter

3. T-con board : LCD Panel control

IP Board

13 Circuit Descriptions

13-2

13-2 Main Block

13 Circuit Descriptions

13-3

13-3 IP Board

13-3-1 19" IP Board Circuit Diagram

Line

Filter

Part

PFC

Switching

Part

Resonance

Switching

Part

Resonance

Transformer

Output

Rectifier

Part

DC/DC
SI-8008HFE
or AP1501A

Inverter

SMPS

24V

Signal

5.3V

Signal

13V

Sound

12V

Stand-By

5.2V

Regulator

KA278R12

Resonance

Controller
MC33067

PFC

Controler

TDA4863

Stand-By

Controller

STR-A6159

AC Input

(90Vac~264Vac)

AC

Rectifier

PFC

Rectifier

On/Off

Control

On/Off

ST-BY

Transformer

Output

Rectifier

Part

13 Circuit Descriptions

13-4

Memo

11 Disassembly and Reassembly

11-1

11 Disassembly and Reassembly

This section of the service manual describes the disassembly and reassembly procedures for the TFT-LCD
TV.

WARNING : This monitor contains electrostatically sensitive devices. Use caution when

handling these components.

11-1 Disassembly

Cautions : 1. Disconnect the monitor from the power source before disassembly.

2. Follow these directions carefully; never use metal instruments to pry apart the
cabinet.

Description Picture Description

1. Place monitor face down on cushioned table.
Remove screws from the rear cover.
Remove screws from the stand.

11 Disassembly and Reassembly

11-2

Description Picture Description

2. Lift up the rear cover and remove the stand.

3. Disonnect cable from the boards.

11 Disassembly and Reassembly

11-3

Description Picture Description

4. Remove screws from the boards and lift up the
boards.

11 Disassembly and Reassembly

11-4

Description Description Picture

5. Remove screws and Lift up the Lcd panel.

11 Disassembly and Reassembly

11-5

11-2 Reassembly

Reassembly procedures are in the reverse order of disassembly procedures.