Samsung LA32R81WX Schematic

TFT-LCD TV

Chassis GBP32ASA

GBP37SEN
GBP40SEN

Model LA32R81WX

LA37R81BX
LA40R81BX

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.

LA32R81WX/LA37R81BX/LA40R81BX
Service Manual

First edition March 2007.
Printed in Korea.

Trademarks

Samsung is the registered trademark of Samsung
Electronics Co., Ltd.
LA32R81WX/LA37R81BX/LA40R81BX
Service Manual 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

11. Precautions

………………………………………………………………………………………………………………………………………

11-1

1-1 Safety Precautions ……………………………………………………………………………………………………………………… 1-1

1-2 Servicing Precautions …………………………………………………………………………………………………………………… 1-2

1-3 Static Electricity Precautions …………………………………………………………………………………………………………… 1-2

1-4 Installation Precautions…………………………………………………………………………………………………………………… 1-3

2

2. Product specifications

…………………………………………………………………………………………………………………………

22-1

2-1 Fashion Feature…………………………………………………………………………………………………………………………… 2-1

2-2 LA32R81BX Specifications ……………………………………………………………………………………………………………… 2-2

2-3 LA37R81BX Specifications ……………………………………………………………………………………………………………… 2-3

2-4 LA40R81BX Specifications ……………………………………………………………………………………………………………… 2-4

2-5 Spec Comparison ………………………………………………………………………………………………………………………… 2-5

2-6 Option Specification ……………………………………………………………………………………………………………………… 2-6

3

3. Alignments and Adjustments

…………………………………………………………………………………………………………………

3

3-1

3-1 Service Instruction ……………………………………………………………………………………………………………………… 3-1

3-2 How to Access Service Mode …………………………………………………………………………………………………………… 3-2

3-3 Factory Data ……………………………………………………………………………………………………………………………… 3-3

3-4 Service Adjustment ……………………………………………………………………………………………………………………… 3-11

3-5 Software Upgrade ……………………………………………………………………………………………………………………… 3-14

4

4. Troubleshooting

………………………………………………………………………………………………………………………………

44-1

4-1 First Checklist for Troubleshooting ………………………………………………………………………………………………………4-1

4-2 Checkpoints by Error Mode ……………………………………………………………………………………………………………… 4-2

5

5. Exploded View and Parts List

…………………………………………………………………………………………………………………

55-1

5-1 LA32R81WX Exploded View ………………………………………………………………5-1
5-2 LA32R81WX Parts list ……………………………………………………………… 5-2
5-3 LA37R81BX Exploded View ……………………………………………………………… 5-3
5-4 LA37R81BX Parts list ………………………………………………………………… 5-4
5-5 LA40R81BX Exploded View ……………………………………………………………… 5-5
5-6 LA40R81BX Parts list ………………………………………………………………… 5-6

6

6. Electrical Parts List

…………………………………………………………………

66-1
6-1 LA32R81WX Parts List ……………………………………………………………… 6-1
6-2 LA37R81BX Parts List ……………………………………………………………… 6-25
6-3 LA40R81BX Parts List ……………………………………………………………… 6-43

7

7.

Block Diagram

………………………………………………………………………

7

7-1

8. WWiring Diagram

………………………………………………………………………

88-1

9. SSchematic Diagrams

………………………………………………………………………

99-1

10. OOperating Instructions and Installation

………………………………………………………

110-1

10-1 Front …………………………………………………………………………… 10-1
10-2 Viewing the Connection Panel ………………………………………………………… 10-2
10-3 Remote control ……………………………………………………………………… 10-4
10-4 Installation the Stand ……………………………………………………………… 10-5
10-5 Installing the Wall Mount Kit …………………………………………………………… 10-5

111. Disassembly and Reassembly

……………………………………………………………

111-1

11-1 Disassembly …………………………………………………………………… 11-1
11-2 Reassembly …………………………………………………………………… 11-5

1

12. PCB Diagram

…………………………………………………………………………

112-1
12-1 Main PCB Diagram (Without Card Slot) ……………………………………………………… 12-1
12-2 Main PCB Diagram (With Card Slot) …………………………………………………………12-2

113. Circuit Descriptions

…………………………………………………………………

113-1

Contents

13-1 Main Signal Description ……………………………………………………………………………………………………………… 13-1

13-2 DTV Signal Description ……………………………………………………………………………………………………………… 13-2

13-3 RF/DTV Tuner (DNOS403MH261B(S)) SPEC. …………………………………………………………………………………… 13-3

13-4 DTV MAIN ChipSet …………………………………………………………………………………………………………………… 13-9

1

14. Reference Infomation

………………………………………………………………………………………………………………………

114-1

14-1 Technical Terms ……………………………………………………………………………………………………………………… 14-1

14-2 Pin Assignments ……………………………………………………………………………………………………………………… 14-4

14-3 Timing Chart …………………………………………………………………………………………………………………………… 14-7

14-4 Panel Description …………………………………………………………………………………………………………………… 14-11

Samsung Electronics Co.,Ltd.

416, Maetan-3Dong, Yeongtong-Gu, Suwon City,
Gyeonggi-Do, Korea, 443-742
Printed in Korea
P/N : BN82-00196B-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 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

" "

- 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

You have to check Panel Maker Because of different adjustments as follows.
First of all, Check the label rating!

1) Label Rating File

- LCD PANEL MARK ­A:ACER(AUO) S : SEC C : CMO * If not printed you could consider S(sec) panel mark.

2) If Panel Mark is "A", Set the factory mode indicating as follows.
* Option Byte

1. Inch Option 32"

2. Gamma 32"AUO

3. Panel Option AUO

Others are same shown below.

Power OFF

PICTURE ON

INFO

MENU

DISPLAY

MUTE

FACTORY

Power ON

3 Alignments and Adjustments

3-3

3-3 Factory Data

1. Calibration

2. Service

3. White Balance

4. SVP-UX

5. Option Block

6. SGTV5810/NTP3000

7. YC Delay

8. Option Table

9. I2C Check

10. W/B MOVIE

11. Checksum

12. Reset

13. Spread Spectrum
T-BDPMPEUD-xxxx (Main Micom Ver)
T-BDPMPEUS-xxxx
BORD2_CALLA_TR-xxxx (Sub Micom Ver)

Month / Day / Year / Hour / Min. / Sec.

1. Calibration

1) AV Calibration

2) COMP Calibration

3) PC Calibration

4) HDMI Calibration

2. Option Table XXXX XXXX

No

Item
1
2
3
4
5
6
7
8
9

10
11
12
13
14
15
16
17
18
19

Ready
Inch Option
Panel Vender
Gamma
Panel Type
Model Option
Tuner
Tuner TOP
Auto Power
Nordic
LNA Menu
TTX On/Off
TTX List
Carrier Mute
High Deviation
VOL.Curve
HDMI Hotplug
HDMI Clock CtrI
HDMI Hotplug Dly

ON/OFF

23"/ 26" / 32"¡¦

AUO/CMO¡¦

ON/OFF

Normal1/Normal2¡¦

Calla/Lily/Bord Plus/Jasmine

SEMCO/ALPS

0~31
ON/OFF
ON/OFF
ON/OFF
ON/OFF

Flof/List
ON/OFF
ON/OFF

Small/Large

1/0
1/0

3~50

OFF

32"

AMLCDINT

OFF

Normal1

Bord Plus

SEMCO

8

ON

OFF

ON
ON

Flof
OFF
OFF

Small

1
1
9

Range

3 Alignments and Adjustments

3-4

No

Item

20

21
22
23
24
25
26
27
28

Hotel Option
Hotel Mode
Power On Channel
Power On Volume
Max Volume
Local Key Lock
Power On Source
Shop Mode
Color Space
PC Ident
Language
ANYNET+
Ch.Table
TTX Group
iDTV_Cntry

ON/OFF

1~99
1~100
1~100

ON/OFF

RF/Ext.1¡¦

ON/OFF
ON/OFF
ON/OFF

English/German¡¦

ON/OFF

SUWON/SESK/SEH/TTSEC

Auto/West Europe¡¦

UK/France¡¦

OFF

1

10

100

OFF

RF

OFF

ON

OFF

English

ON

SUWON

Auto

UK

Range

3. White Balance

No

Item Range

1
2
3
4
5
6
7
8

Sub-Briteness
R-offset
G-offset
B-offset
Sub-Contrast
R-Gain
G-Gain
B-Gain

00H~FFH
00H~FFH
00H~FFH
00H~FFH
00H~FFH
00H~FFH
00H~FFH
00H~FFH

128
128
128
128
128
128
128
128

128
128
128
128
128
128
128
128

128
128
128
128
128
128
128
128

128
128
128
128
128
128
128
128

TV/AV/Scart Comp/iDTV PC

HDMI

4. SVP-PX

1) ComB Filter

2) Sharpness

No1Item

Y-Filter

Range

00H~FFH

No

1
2
3
4
5
6
7
8

9
10
11

Item
H2Gain
H4Gain
V2Gain
V4Gain

Sr2Gain
Sr4Gain
Sl2Gain
Sl4Gain
Peakth1
Peakth2
Peskth3

Range
00 ~ 1FH
00 ~ 1FH
00 ~ 1FH
00 ~ 1FH
00 ~ 1FH
00 ~ 1FH
00 ~ 1FH
00 ~ 1FH

00H~FFH
00H~FFH
00H~FFH

RF
05H
04H
0CH
0CH
00H
00H
00H
00H
06H
2FH
3FH

AV

05H
0AH
0CH
10H
00H
02H
00H
02H
02H
2FH
3FH

HDMI

0AH
0AH
10H
10H
00H
04H
00H
04H
03H
2FH
3FH

PC
05H
05H
0AH
0AH
00H
02H
00H
02H
08H
2FH
3FH

iDTV

05H
05H
0AH
0AH
00H
02H
00H
02H
04H
2FH
3FH

Comp480i

05H
05H
0AH
0CH
00H
00H
00H
00H
03H
2FH
3FH

Comp480p

05H
05H
0CH
0CH
00H
00H
00H
00H
03H
2FH
3FH

Comp720p

04H
02H
0AH
0AH
00H
02H
00H
02H
03H
2FH
3FH

Comp1080i

04H
02H
0AH
0AH
00H
02H
00H
02H
03H
2FH
3FH

3 Alignments and Adjustments

3-5

3) NR

4) RGB Calibration

5) ADC Calibration

6) Caliration Target

No

1
2
3
4

Item
Y_NR_OFF
C_NR_OFF

Y_NR_ON
C_NR_ON

Range

00H~FFH(Y_NR_OFF)

00H~FFH(C_NR_OFF)

00H~FFH(Y_NR_ON)
00H~FFH(C_NR_ON)

00H
00H
00H
00H

No

Item Range
1
2
3
4
5
6

R-Offset
G-Offset
B-Offset

R-Gain
G-Gain

B-Gan

00H~FFH
00H~FFH
00H~FFH
00H~FFH
00H~FFH
00H~FFH

3AH
3AH
3AH
A6H
A6H
A6H

40H
40H
40H
92H
92H
92H

32H
32H
32H
A9H
A9H
A9H

82H
82H
82H
6CH
6CH
6CH

TV/AV/S_Video Component PC

HDMI

No

Item Range
1
2
3
4

AV ADC

COMP ADC

PC ADC

ALL RGB

00H~FFH
00H~FFH
00H~FFH
00H~FFH

10H
10H
10H
01H

DCH
EBH
DCH
EBH

02H
02H
04H
0AH

low high Delta

No

Item Range
1
2
3
4
5
6
7
8
9

10
11
12
13

TCD3 Contrast

TCD3 Brightness

TCD3 CR
TCD3 CB

TCD3 Delay

Analog Y Offset
Analog PB Offset
Analog PR Offset

Analog Y Gain

Analog PB Gain

Analog PR Gain

Black Level

Svp Brightness

00H~FFH
00H~FFH
00H~FFH
00H~FFH
00H~FFH
00H~FFH
00H~FFH
00H~FFH
00H~FFH
00H~FFH
00H~FFH
00H~FFH
00H~FFH

79H
29H
80H
80H
00H
40H
80H
80H

D6H

80H
80H
00H
00H

78H
20H
80H
80H
00H

3DH

80H

80H
B3H
B3H
B3H

00H

00H

78H
20H
80H
80H
00H
44H
44H
44H

A4H
ACH
A7H

00H

00H

78H
20H
80H
80H
00H
40H
80H
80H
80H
80H
80H
00H
00H

TV/AV/S_Video Component PC

HDMI

3 Alignments and Adjustments

3-6

5. Option Block

7) Color Management

1) FRC(Micronas)

2) FRC2X

No

Item Range
1
2
3
4

Skin Direction
Skin Enhance
Green Stretch

Blue Stretch

Reddish/Yellowish

00H~FFH
00H~FFH
00H~FFH

Reddish

00H
00H
00H

No

Item Range

1
2
3
4
5
6
7
8
9

10
11
12
13
14
15
16

OUTCON

GAMMA

OCC_MODE

FALLBACK

DBG_MARK

SPR_CBR

BIT_EXPAND

INV_BIT_EXPAND

REPEAT_MODE
DEMO_ON_OFF

MMU_RD_START

ME_RD_START

MC_RD_START

CMZL(0x36E)
BLOL(0x2A7)

LOGO(0x2A7)

1~3
1~7

0/1
0/1
0/1
0/1
0/1
0/1
0/1

0/1
00H~FFH
00H~FFH
00H~FFH
00H~0FH
00H~0FH
00H~0FH

0
0
0
0
0
0
0
0
0

0
00H
00H
00H

0H
0H
0H

3 Alignments and Adjustments

3-7

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

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
ARC 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

0~20

0/1
0~255
0~255
0~255
0~255
0~255
0~255
0~255
0~255
0~255
0~255
0~255
0~128
0~255
0~255

0/1
0~255
0~255
0~255
0~255
0~255
0~255
0~255
0~255
0~255

0

1
34
20

120
128

30
30
20

120

56

128
128

15
30

130

1

165
140
128
128
115
128
128
128
128

0

1
44
20

120
128

20
40

100
200

56

128
128

15
30

130

1

165
140
128
128
128
128
128
128
128

0

1
44
20

120
128

20
40

100
200

56

128
128

15
30

130

1

165
140
128
128
128
128
128
128
128

3) FBE2

No Item Range

0

1
64
20

120
128

55
65
75

225

85

128
128

15
30

130

1

165
128
128
128
150
128
128
128
128

HDMI

0

1
64
20

120
128

75
88
75

225

85

128
128

15
30

130

1

128
128
128
128
143
128
128
128
128

DTV

0

1
64
20

120
128

75
88
75

225

85

128
128

15
30

130

1

128
128
128
128
143
128
128
128
128

DTVRF

AV/

S-VIDEO

COMP

(480i/576i)

0

1
64
20

120
128

40
40
75

155

45

128
128

15
30

130

1

150
140
128
128
135
128
128
128
128

COMP

(480p/576p)

0

1
64
20

120
128

70
75
75

225

85

128
128

15
30

130

1

165
128
128
128
140
128
128
128
128

COMP

(720p/1080i/1080p)

3 Alignments and Adjustments

3-8

4) Pdp Logic

No

Item Range

1
2
3
4
5
6
7
8

9
10
11
12
13

Pattern Srlect

Data updata

Data Type

CDC Sw

CDC Strengh Th

BRE Sw

FRC Repeat Mode

FRC CBG Mark On

ERC Bypass

Panel Type

Panel Inch

Panel Version

Logic Sw Version

0~63

ON/OFF

42"EU MRT/42"EU MESH/.......

ON/OFF

0~31
ON/OFF
ON/OFF

0~15
ON/OFF

-

-

-

-

0

OFF

42"EU MRT

OFF

0
OFF
OFF

0
OFF

0H
SD

0H 0H 0H

6. SGTV5810/NTP3000

No

Item Range

1
2
3
4
5
6
7

ID Tone Shift

ID Tone Thresh

Demod Prescaler

Master Volume

PWM Modulation

DRC Threshold

Speaker EQ

1H~FH

00H~FFH

00H~20H
00H~30H
80H~F2H
00H~7FH

ON/OFF

01H
7FH
13H
13H
F1H
06H

OFF

7. YC Delay

No

Item Range

1
2
3
4
5
6
7
8

9
10
11
12
13

RF PAL-B/G

RF PAL - D/K

RF PAL - I
RF SECAM - B/G
RF SECAM - D/K

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 PAL60

00H~FFH
00H~FFH
00H~FFH
00H~FFH
00H~FFH
00H~FFH
00H~FFH
00H~FFH
00H~FFH
00H~FFH
00H~FFH
00H~FFH
00H~FFH

AAH

99H
99H
88H
44H
88H

44H
CCH
AAH

88H

30H
AAH

77H

3 Alignments and Adjustments

3-9

8. Adjust

9. I2C Check

10. W/B MOVIE

No

Item Range

1
2
3
4
5

6
7
8

9
10
11

Video Mute Time

Dynamic Contrast

Dynamic Dimming

Dynamic CE

LNA PLUS
RFDB-1 Level
RFDB-2 Level
RFDB-3 Level
RFDB-4 Level

Magazine LNA
PixelShift Test

Debug

ACR
D-Watchdog
UART Select

0~255
ON/OFF
ON/OFF
ON/OFF

0~255

0~255

0~255

0~255
ON/OFF
ON/OFF
ON/OFF
ON/OFF
ON/OFF

MAIN / IDTV / PDP Lvds ON / PDP Lvds OFF

10

OFF

ON

OFF

2
5
7

24
OFF
OFF
OFF
OFF

ON

OFF

1
2
3
4
5
6
7
8
9

10

8

9
10
11
12
13
14
15
16
17
18
19
20
21
22

WB Movie

Color Mode

Color Tone

Msub Brigh
Msub Contr
W1_RGAIN
W1_BGAIN

W1_R_OFFS
W1_B_OFFS

W2_RGAIN
W2_BGAIN

W2_R_OFFS
W2_B_OFFS

NO_RGAIN
NO_BGAIN

NO_R_OFFS
NO_B_OFFS

C2_RGAIN

C2_BGAIN

C2_R_OFFS
C2_B_OFFS

Movie Contr
Movie Brigh
Movie Color

Movie Sharp

ON/OFF

Movie

0~255
0~255
0~255
0~255
0~255
0~255
0~255
0~255
0~255
0~255
0~255
0~255
0~255
0~255
0~255
0~255
0~255
0~255
0~100
0~100
0~100
0~100

No Item Range

OFF
Movie
Cool1

128
128
157

76
119
138
142

48
129
143
141
104
126
136
124
142
128
128
100

45

55

75

TV/AV/S_Video

OFF

Dynamic

Cool1

128
128
161

74
119
140
143

47
127
145
139
102
125
133
122
141
129
127
100

45

55

75

Component

OFF

Dynamic

Cool1

128
128
144
117
127
110
149

93
124
110
137
123
126
114
123
156
117
116
100

45

55

75

PC

OFF

Dynamic

Cool1

128
128
161

76
118
141
142

51
128
143
141
104
121
133
125
143
128
128
100

45

55

75

HDMI

OFF

Dynamic

Cool1

128
128
157

76
119
138
142

48
129
143
141
104
126
136
124
142
128
128
100

45

55

75

Scart1/2

3 Alignments and Adjustments

3-10

11. Checksum 7A72

12. Reset

13. Spread Spectrun

No

Item Range

1
2
3
4
5
6
7
8

Spectrum

Delta

Positive

Negative

Speed

Time

FBE Spectrum

FEE Delta

ON/OFF

-128 ~ +128
0~99
0~99

0~7
0~7

ON/OFF

0~5

ON

0
8
2
0
4

OFF

0

3 Alignments and Adjustments

3-11

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 : Flat W/B Pattern
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

Flat W/B Pattern

[ Test Pattern : MIK K-7256 PAttern #92 ]

*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

3-12

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 Flat W/B Pattern

Low light
Measurement point

3 Alignments and Adjustments

3-13

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 Flat W/B Pattern

High light
Measurement point

3 Alignments and Adjustments

3-14

3-5 Software Upgrade

3-5-1 How to Update Flash ROM

1. Install the 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.

7 Block Diagrams

7-1

7 Block Diagram

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

7-1 Asia Ready TV Block Diagram (SVP-UX68)

7 Block Diagrams

7-2

7-2 Asia Ready TV Block Diagram (SVP-WX68)

13 Circuit Descriptions

13-1

13 Circuit Descriptions

13-1 Main Signal Description

13-2 DTV Signal Description

13 Circuit Descriptions

13-2

13 Circuit Descriptions

13-3

13-3 RF/DTV Tuner (DNOS403MH261B(S)) SPEC.

1. Description

1-1 Receiving System : Designed to cover all bands in VHF and UHF including digital terrestrial(DVB-T)

and hyper channels for CCIR system.
1-2 It built in COFDM-Demod IC & Analog Demod IC (PAL B/G, I, D/K, SECAM L/L')
1-3 Receiving Channel : 47MHz ~ 862MHz
1-4 Intermediate Frequency : Digital(center) 36.167 MHz, Analog(picture) 38.9MHz
1-5 Input Impedance : 75§Ù, Unbalanced.
1-6 Terminals name and function

2. Mechanical Characteristics

2-1 Dimensions : refer Fig1
2-2 Weight : 60g
2-3 RF input : DIN jack(female)
2-4 Holding Strength of Ant jack.

Initial Inserting Force : 5.0kg max.
Extracting Force After 5 Cycles : 0.7kg min.

2-5 Terminal Strength

The terminal shall not withdraw to the inside
when a force of 1.0Kgf(9.8N) is applied to the end.

Fig - 2

Pin No

1
2
3
4
5
6
7

8

9
10
11
12
13
14

Pin No

15
16
17
18
19
20
21

22
23
24
25
26
27
28

Connection
N.C
SYNC
VALID
MD7
MD6
MD5
MD4

MD4
MD2
MD1
MD0
MPEG CLK
SDA
SCL

Connection
LNA 9V
RF AGC
5V
AFT
30V
N.C (AS)
RESET

ERROR
VIDEO OUT
N.C
SIF OUT

3.3V
GND
N.C

Remark
Only Analog part

Initial power-up,
Reset need Low status ¡Ã50mS

Remark

MPEG data output7
MPEG data output6
MPEG data output5
MPEG data output4

MPEG data output3
MPEG data output2
MPEG data output1
MPEG data output0

13 Circuit Descriptions

13-4

3. General Characteristics

3-1 Temperature Range
Storage Temperature : -20

~ +80
Operation Temperature : 0 ~ +65
3-2 Test conditions : All data hold under following conditions
T(amb.) : +25 2 / Humidity : 45 ~ 65 % RH
Supply voltage(5V) : +5V

2%

Supply voltage(9V) : +9V

2%
Tuning voltage (BT) : +30V 2%
Supply voltage(3.3V) : +3.3V

2%
3-3 Current Consumption
Supply Voltage (5V) : Typ 210mA, Max 240mA
Supply Voltage (9V) : Typ 40mA, Max 70mA
Tuning Voltage(30V) : Max 2mA
Supply Voltage(3.3V) : Max 240mA Max 260mA

4. Electrical Characteristics ( RF block & Digital Demodulation )

4-1 Input Frequency Range
Analog VHF-Low Band : 48.25MHz ~ 168.25MHz

VHF-High Band : 175.25MHz ~ 463.25MHz
UHF Band : 471.25MHz ~ 855.25MHz

DVB-T VHF-High Band : 174(177.5)MHz ~ 230(226.5)MHz

UHF Band : 470(474)MHz ~ 862(858)MHz
4-2 Input Signal Level : -80dBm ~ -10dBm (AveragePower, 64QAM, 2/3CR)
4-3 Voltage Gain

1st IF : 40dB typ. 38dBmin.

4-4 Noise Figure

1st IF : 4.5dB typ. 6.5dB max. (at max. gain)
4-5 OFDM-Demod IC : MT5131 (produced by MediaTek)
4-6 Input Impedance : 75
4-7 RF Input/Output Return Loss : -8dB typ. -6dB min.
4-8 IF Frequency

1) Digital center frequency : 36.125MHz

2) Analog (PAL B/G, I, D/K, SECAM L/L')

Picture intermediate frequency :

38.9MHz(PAL B/G & SECAM L), 33.9MHz(SECAM L')
Sound intermediate frequency :

33.4MHz(B/G), 32.9MHz(I), 32.4MHz(D/K,SECAM L), 40.4MHz(SECAM L')

4-9 Spurious Signals at Input Terminal

Local Oscillator Leakage : 46dBuV max.

4-10 Reference Frequency

The X-tal for the RF block's PLL : 4MHz

13 Circuit Descriptions

13-5

4-11 Phase Noise (step frequency 166.67kHz for digital)

@ 1kHz : -84dBc/Hz typ. -75dBc/Hz max.
@ 10kHz : -90dBc/Hz typ. -80dBc/Hz max.

4-12 Control Data Bus : I

2

C
4-13 Control Data Format : refer 5 section
4-14 Image PAL Interference Protection Ratio

: -49dB typ. -46dB min (at 2K, 8K mode) Note1.

4-15 Adjacent PAL Interference Protection Ratio. (N

1 channel)

: -38dB typ. -35dB min (at 2K, 8K mode) Note1.

4-16 Adjacent DVB-T Interference Protection Ratio. (N ¡¾1 channel)

: -33dB typ. -30dB min (at 2K, 8K mode) Note1.

4-17 Co-Channel PAL Interference Ratio.

: +1dB typ. +4dB min (at 2K, 8K mode) Note1.

Note1 :

Desire input signal condition

a : Modulation - 64QAM
b : Guard Interval - 1/32
c : Puncture Rate - 2/3

Undesired input signal condition :

PAL : Video 75% color bars
FM sound : 1kHz tone (P/S : 13dB,

50kHz deviation, freq. P/S : 6.0MHz)

Adjacent & Image channel PAL interference test procedure

a. Turn DVB-T source off ; adjust PAL PSP level to -25dBm
b. Turn PAL off ; turn DVB-T on
c. Adjust DVB-T to -25dBm
d. Turn PAL on and increase step PAL level to see the pixelation on the screen
e. Note protection ratio as the difference value between DVB-Tand PAL's level

Co-Channel PAL interference test procedure

a. Turn PAL source off ; adjust DVB-T level to -50dBm
b. Turn DVB-T off ; turn PAL on
c. Adjust PAL to -50dBm
d. Turn DVB-T on and increase step attenuator in PAL channel until QEF.

4-18 Input Carrier to Noise (Additive White Gaussian Noise, QEF. Condition)

: 17.4dB typ. 18.4dB max. (64QAM, 2K,8K Mode, Code rate:2/3, input level:-50dBm)
: 22.5dB typ. 23.5dB max. (64QAM, 2K,8K Mode, Code rate:7/8, input level:-50dBm)

4-19 Sensitivity (QEF. Condition)

: -80dBm typ. -78.5dBm max.(64QAM, 2K,8K Mode, Code rate:2/3,Guard Interval 1/32)
: -76dBm typ. -74.7dBm max.(64QAM, 2K,8K Mode, Code rate:7/8,Guard Interval 1/32)

4-20 Multipath channel Interference (64QAM, 2K, 2/3code rate, 1/32G.I)

4-21 C(N+1) Performance in Single Frequency Networks outside the guard interval

- NorDig Unified Test Specification, ver 1.0 (Task 3.28)

13 Circuit Descriptions

13-6

short echo : 20.5dB max long echo : 21.5dB max

short delay parameter long delay parameter

4-22 Performance in Time-Varying Channels

- NorDig Unified Test Specification, ver 1.0 (Task 3.25)

4-23 C(N+1) Performance in Single Frequency Networks for more than one echo

- NorDig Unified Test Specification, ver 1.0 (Task 3.26)

Pin No

1
2
3
4
5
6

Delay(us)

0

0.05

0.4

1.45

2.3

2.8

Relative Attenuation(dB)

2.8
0

3.8

0.1

2.6

1.3

Pin No

1
2
3
4
5
6

Delay(us)

0

5
14
35
54
75

Relative Attenuation(dB)

0

9
22
25
27
28

13 Circuit Descriptions

13-7

5. Electrical Characteristics ( Analog Demodulation )

5-1 PIF characteristics

13 Circuit Descriptions

13-8

5-2 AFT Characteristics

5-3 Audio characteristics

13 Circuit Descriptions

13-9

Enhanced ST20 32-bit VL-RISC CPU

- 200 MHz, single cycle cache/4 Kbyte instruction cache,/
4 Kbyte data cache, 2 Kbyte SRAM

Unified memory interface

- Up to133 MHz,16-bit wide DDR SDRAM interface

Programmable flash memory interface

- 4 separately configurable banks, 8/16-bits wide

- SRAM, peripheral, Flash, SFlash

support

- Support for low cost DVB-CI

Programmable transport interface (PTI)

- Single transport stream input

- Support for DVB transport streams

- Integrated DVB, ICAM descramblers

MPEG-2 MP@ML video decoder

- Fully programmable horizontal and vertical SRCs

Graphics/display

- 4 display planes

- 8 bpp CLUT graphics, 256 x 30 bits (AYCbCr) CLUT
entries. 16 bpp true color graphics, RGB565,
ARGB1555, ARGB4444 formats. Link-list control

- Alpha blending, antialiasing, antiflutter, antiflicker filters

- 2D paced blitter engine with fill function

- Blitter based display compositor

PAL/NTSC/SECAM encoder

- RGB, CVBS, Y/C and YUV outputs with four 10-bit DAC
outputs. RGB/CVBS or YUV/CVBS or YC/CVBS.

- Encoding of CGMS, Teletext, WSS, VPS, close caption

Audio subsystem

- MPEG-1 layers I/II

- Simultaneous MPEG audio decode and output of Dolby
streams on S/PDIF

- IEC958/IEC1937 digital audio output interface

- Integrated stereo audio DAC system

Central DMA controller
On-chip peripherals

- Two ASCs (UARTs) with Tx and Rx FIFOs

- Three 8-bit banks of parallel I/O and one 7-bit bank

- One smartcard interface and clock generator

- Two SSCs for I©÷C/SPI master/slave interfaces

- Infrared transmitter/receiver

- Integrated VCXO

- Low-power / RTC / watchdog controller

JTAG/TAP interface
Package 23 x 23 PBGA

13-4 DTV MAIN ChipSet

13-5-1 STx5105 SPEC.