SAMSUNG CW21A83NS8XEC, WS28W8VDESXXEC, CW28C93WS8XXEG, WS28W73WS8XXEG, WS32W74WS8XXEG Service Manual

COLOR TELEVISION RECEIVER

Chassis : KS3A(P) (REV. 2) Model : CW21A83NS8XEC

WS28W8VDESXXEC CW28C93WS8XXEG WS28W73WS8XXEG WS32W74WS8XXEG

COLOR TELEVISION RECEIVER CONTENTS

Precautions

Reference Information

Specifications

Alignment and Adjustments

Troubleshooting

Exploded Views and Parts List

Electrical Parts List

Block Diagrams

Wiring Diagram

Schematic Diagrams

10.

ELECTRONICS

Printed in Korea

3KS3A-SEH-0917

Reference Information

Samsung Electronics 2-1

2. Reference Information

2-1 Tables of Abbreviations and Acronyms

A Ah Å dB dBm

°C °F °K F G GHz g H Hz h ips kWh kg kHz kΩ km km/h kV kVA kW I MHz

Ampere Ampere-hour Angstrom Decibel Decibel Referenced to One Milliwatt Degree Celsius Degree Fahrenheit degree Kelvin Farad Gauss Gigahertz Gram Henry Hertz Hour Inches Per Second Kilowatt-hour Kilogram Kilohertz Kilohm Kilometer Kilometer Per Hour Kilovolt Kilovolt-ampere Kilowatt Liter Megahertz

MV MW MΩ m µA µF µH µm µs µW mA mg mH mI mm ms mV nF

Ω

pF Ib rpm rps s V VA W Wh

Megavolt Megawatt Megohm Meter Microampere Microfarad Microhenry Micrometer Microsecond Microwatt Milliampere Milligram Millihenry Milliliter Millimeter Millisecond Millivolt Nanofarad Ohm Picofarad Pound Revolutions Per Minute Revolutions Per Second Second (Time) Volt Volt-ampere Watt Watt-hour

Table 2-1 Abbreviations

Reference Information

2-2 Samsung Electronics

Table 2-2 Table of Acronyms

ABL AC ACC AF AFC AFT AGC AM ANSI APC APC A/V AVC BAL BPF B-Y CATV CB CCD CCTV Ch CRT CW DC DVM EIA ESD ESD FBP FBT FF FM FS GND G-Y H HF HI-FI IC IC IF

Automatic Brightness Limiter Alternating Current Automatic Chroma Control Audio Frequency Automatic Frequency Control Automatic Fine Tuning Automatic Gain Control Amplitude Modulation American National Standards Institute Automatic Phase Control Automatic Picture Control Audio-Video Automatic Volume Control Balance Bandpass Filter Blue-Y Community Antenna Television (Cable TV) Citizens Band Charge Coupled Device Closed Circuit Television Channel Cathode Ray Tube Continuous Wave Direct Current Digital Volt Meter Electronics Industries Association Electrostatic Discharge Electrostatically Sensitive Device Feedback Pulse Flyback Transformer Flip-Flop Frequency Modulation Fail Safe Ground Green-Y High High-Frequency High Fidelity Inductance-Capacitance Integrated Circuit Intermediate Frequency

I/O L L LED LF MOSFET MTS NAB NEC NTSC OSD PCB PLL PWM QIF R RC RF R-Y SAP SAW SIF SMPS S/N SW TP TTL TV UHF UL UV VCD VCO VCXO VHF VIF VR VTR VTVM TR

Input/output Left Low Light Emitting Diode Low Frequency Metal-Oxide-Semiconductor-Field-Effect-Tr Multi-channel Television Sound National Association of Broadcasters National Electric Code National Television Systems Committee On Screen Display Printed Circuit Board Phase-Locked Loop Pulse Width Modulation Quadrature Intermediate Frequency Right Resistor & Capacitor Radio Frequency Red-Y Second Audio Program Surface Acoustic Wave(Filter) Sound Intermediate Frequency Switching Mode Power Supply Signal/Noise Switch Test Point Transistor Transistor Logic Television Ultra High Frequency Underwriters Laboratories Ultraviolet Variable-Capacitance Diode Voltage Controlled Oscillator Voltage Controlled Crystal Oscillator Very High Frequency Video Intermediate Frequency Variable Resistor Video Tape Recorder Vacuum Tube Voltmeter Transistor

Table 2 - 3 IC Line - Up

DESCRIPTION

Video Processor Multistandard Sound Processor MICOM, TTX(MTP)

EEPROM Audio AMP

RGB Drive AMP Hybrid IC

100Hz Horizontal Pulse AMP Vertical IC

Horizontal Drive IC

E/W Drive IC

SPS Controllor Bridge Diode

Photo Coupler 5V Controlled Regulator

Rectifier Diode

3.3V Regulator 6V Regulator 8V Controlled Regulator

3.3V Regulator MICOM Reset IC

IIC Level Shifter

Main Tuner with IF Block Sub Tuner with IF Block

Reference Information

Samsung Electronics 2-3

2-2 IC Line Up

LOC. NO

IC201S

IC601 IC901 IC902

IC602

HIC201 HIC202 HIC203

HIC204 HIC401

IC301

Q402 Q401

D414

IC401

Q404

IC801S

D801S

PC801S

IC802

D805 D806

D807

D802 IC201 IC804

IC803 IC903

IC904

Q909

Q910

TU01S TU02S

BOARD

MAIN

SPEC

VDP3112B

MSP3411G

SDA555X

KS24L161

TDA7297

DRGB001

DDRI001

LA7845

KSC2073-H2

KSD5703

FMP-3FU

KA393 IRF620

3S1265R

RBV606 PC123Y

KA78R05

FML-G12S

FMG-G2CS KA78RM33

KA7806

KA78R08

KA78RM33 KIA7025AP

2N7000

TCLS3101PD09A9(S)

TCPN3081PD09A(S)

REMARK

Refer to Table 2-3-1 Refer to Table 2-3-2

Refer to Table 2-3-3

VM Option

Option

HC401

HC801

VDPY

Refer to Table 2-3-4 Refer to Table 2-3-5

2-4 Samsung Electronics

Table 2 - 3 IC Line - Up

DESCRIPTION

Trans Switching Trans FBT

Video Output AMP R.G.B Drive

Push-Pull (VM)

TR-Power (TILT)

OP-AMP (TILT) OP-AMP TR-Power

Video Switching IC with Adder Output High-end Picture-In Picture IC

3.3V Regulator

LOC. NO

T801S T444S

IC501 IC502 IC503

QF04

QF05 QG02

QG03 ICG01 ICH01

QH01 ICS01

ICP01 ICP02

SPEC

AA26-00046A

FUJ-29B001

TDA6111Q

2SC2344 2SA1011

KSA940

KSD2073-H2

KA4558 KA4558

2SC4636RB

TEA6425

SDA9489X

EZ1086CM

REMARK

Refer to Table 2-3-6 Refer to Table 2-3-7

Option

Option Option

Option

BOARD

MAIN

CRT

DOUBLE

FOCUS V-S/W

PIP

Reference Information

Samsung Electronics 2-5

SPEC

VDP3108B VDP3112B VDP3120B VDP3130Y VDP3140D

FUNCTION

50Hz Basic 50Hz, 2H Comb Filtr 50Hz, 2H Comb Filter, Horizontal Scaler 50Hz, 2H Comb Filter, DVD Input 100Hz

REMARK

Table 2-3-1 VIDEO IC (IC201S)

SPEC

MSP3400D MSP3410D MSP3411G

FUNCTION

Multistandard, A2 Stereo Multistandard, A2 Stereo, Nicam Multistandard, A2 Stereo, Nicam, Vitual Dolby

REMARK

SPEC

TDA7297

FUNCTION

15W x 2CH, 10W x 2CH

REMARK

SPEC

TCLS3101PD09A(S) TCPS3001PD09D(S) TCPS3001PD09E(S)

FUNCTION

CS with LNA Function CS CS

REMARK

Main

India

SPEC

TCPS3000PC09B(S)

FUNCTION

REMARK

Sub

TCPS3001PD09A(S) is out-of-date, TCPS3001PD09D(S) which is up-to-date has the same function.

Table 2-3-2 SOUND IC (IC601)

Table 2-3-3 SOUND AMP (IC602)

Table 2-3-4 1’st TUNER (TU01S)

Table 2-3-5 2’nd TUNER (TU02S)

Note

Reference Information

2-6 Samsung Electronics

SPEC

FUJ-29B001

FUH-29A001B

FUNCTION

29” 21”

REMARK

Table 2-3-6 TRANS

SPEC

AA26-00046A AA26-00044C

FUNCTION

29” 21”

REMARK

Table 2-3-7 TRANS FLYBACK (FBT)

Alignment and Adjustments

Samsung Electronics 4-1

4. Alignment and Adjustments

4-1 General Alignment Instructions

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 and focus.

2. Observe the picture for good black and white details. There should be objectionable color shading; if color shading is present, demagnetize, perform purity and convergence adjustments described below.

3. Use the specified test equipment or its equivalent.

4. Correct impedance matching is essential.

5. 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 results.

6. Connect the TV only to an AC power source with voltage and frequency as specified on the backcover nameplate.

7. Do not attempt to connect or disconnect any wires while the TV is turned on. Make sure that the power cord is disconnected before replacing any parts.

8. To protect against shock hazard, use an isolation transformer.

4-2 Automatic Degaussing

A degaussing coil is mounted around the picture tube, so that external degaussing after moving the TV should be unnecessary. But the receiver must be properly degaussed upon installation.

The degaussing coil operates for about 1 second after the power is switched ON. If the set is moved or turned in a different direction, the power should be OFF for at least 10 minutes.

If the chassis or parts of the cabinet become magnetized, poor color purity will result. If this happens, use an external degaussing coil. Slowly move the degaussing coil around the faceplate of the picture tube and the sides and front of the receiver. Slowly withdraw the coil to a distance of about 6 feet before turning power OFF.

If color shading persists, perform the following Color purity and Convergence adjustments.

4-3 High voltage Check

CAUTION : There is no high voltage adjustment on this chassis. The B+ power supply should be +135 volts (with full color- bar input and normal picture level).

1. Connect a digital voltmeter to the second anode of the picture tube.

2. Turn on the TV. Set the Brightness and Contrast controls to minimum (zero beam current).

3. Adjust the Brightness and contrast controls to both extremes. Ensure that the high voltage does not exceed 32 KV under any conditions.

Alignment and Adjustments

4-2 Samsung Electronics

4-5 SCREEN Adjustment

1. Input Toshiba Pattern

2. Enter “Service Mode”.(Refer to “Service Mode”)

3. Select “G2-Adjust”.

4. Set the values as below.

4-4 Dynamic Focus Adjustment

1. A dynamic focus adjustment should be done after replacing the CRT PCB, FBT or CRT.

2. Input a crosshatch pattern.

3. Enter “ STANDARD “ in video mode.

4. Turn the Dynamic focus VR fully clockwise (maximum).( )

5. Turn the Static focus VR fully counterclockwise (maximum).( )

6. Slowly turn the static focus VR counterclockwise. Adjust until the vertical line in the middle of the screen has maximum clarity.( )

7. Slowly turn the dynamic focus VR (clockwise) and adjust the 3rd horizontal line for maximum clarity.( )

8. Repeat 4-7, if necessary.

❷

❶

❷

❶

❷

❶

❷

❶

29 Inch

IBRM = 220 WDRV = 35 CDL = 220 COLR G B = 150 150 150

21 Inch

IBRM = 220 WDRV = 35 CDL = 165 COL = 70

STATIC FOCUS VR

DYNAMIC FOCUS VR

SCREEN

Alignment and Adjustments

Samsung Electronics 4-3

5. Turn the SCREEN VR until “MRCR G B” and “MRWDG” are green and those value are about 100. (The incorrect SCREEN Voltage may result that “MRCR G B” and “MRWDG” should be red)

When you do not have Toshiba Pattern, follow this method.

1. Set the TV on the condition that AV mode no signal(black)

2. Enter the “Menu” and set the mode to blue screen off.

3. Enter the “Service Mode”.

4. Select “ G2-Adjust”.

5. Set the values as below.

IBRM = 220 WDRV = 35 CDL = 220 COLR G B = 150 150 150

6. Turn the SCREEN VR until the value of “ MRCR G B” is about 120. Do not mind that the “OSD” Color is red.

■ After completing G2-Adjust, follow this procedure.

① Enter the “Video Adjust 1”. ➁ Choose any item in menu. (ex. Select “Red Cutoff”) ➂ Change the value of item you select, and recover the value.

For example, when the value of “Red Cutoff” is 127, change the value to 128 and restore the value to 127.

If you do not follow this procedure, the picture may be abnormal. For example, when the TV set is on, the picture becames brighter gradually.

Note 1.

Alignment and Adjustments

4-4 Samsung Electronics

4-6 E2PROM (IC902) Replacement

1. When IC902 is replaced, all adjustment data revert to the initial values. So, all adjustment values when servicing should be readjusted.

2. After IC902 is replaced, connect the AC power supply cord.

3. Turn the power switch ON.

4. In stand-by, warm up the TV for at least 10 seconds.

5. Power on the TV.

4-7 White Balance Adjustment

■ Equipment : Color-Analyzer (CA-100)

■ Input Signal : Pattern signal (Toshiba pattern)

1. Select STANDARD from the menu.

2. Input an 100% White pattern.

3. Enter the “Service Mode”. (Refer to “4-8 Service Mode”)

4. Warm up the TV set at least for 30 minutes.

5. Input a Toshiba pattern signal.

6. Enter the “Video Adjust1”.

- Adjust “Sub Contrast” so that Y (luminance) becomes 40 ft ± 3.

- Use “Red Drive” and “ Blue Drive” to adjust High-Light (x : 290, y : 300)

- Adjust “Sub Bright” so that Y (luminance) becomes 1.3ft ± 0.3.

- Use “Red Cutoff” and “Blue Cutoff” to adjust Low-Light (x : 290, y : 300).

7. Adjust CA-100 so that the final adjustment value can be fixed.

8. Use the Channel Up/Down (▲/▼) buttons to move the cursor on the adjustment modes.

9. Use the Volume +/- buttons to change the adjustment value.

Alignment and Adjustments

Samsung Electronics 4-5

4-8 Factory Adjustment

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

- If you do not have Factory remote-control

- If you have Factory remote-control

2. After the Service Mode is entered, the initial screen is as shown in the figure below.

3. Use the Channel Up/Down buttons to move the cursor in the adjustment parameters.

- When CRT, CRT PCB, FBT, E

PROM (sometimes MICOM) is replaced, the adjustment values

should be controlled.

- After the Service adjustment is completed, Do not select “Reset” in the service mode menu.

(After above procedure is done, power is on initially and the “Plug and Play” will be operated.)

4-8-1 Service Mode

These hexa digits are check sum value which depends on the MICOM. If check sum value is changed, the value of

PROM Data newly initialed.

Note 2.

PICTURE OFF PICTURE ON

DISPLAY

()

MUTE

PICTURE ON

Service

Deflection Video Adjust 1 Video Adjust 2 Video Adjust 3 Option(81h 0Ch) Reset G2-Adjust Others

DISPLAY

()

FACTORY

Alignment and Adjustments

4-6 Samsung Electronics

Initial Value

-30

-7

-3

-17

-47

-7

23 13

8 0

26 23

4-8-2 Memory Data

4-8-2(A) DEFLECTION (GEOMETRIC ADJUSTMENT VALUE)

No.

1 2

3 4 5 6

7 8 9

10 11 12 13

14 15 16

OSD

V Shift V Amp

V Slope V SC H EW H Trapizium

H Parabola H Symmetry

H Corner H Shift

PIP Contrast PIP Tint

PIP PAL V Pos PIP NTSC V Pos

PIP H Pos PIP BLKLG

Range

-128 ~127

-128 ~127 0 ~ 15 0 ~ 63

0 ~ 255 0 ~ 255

0 ~ 255

0 ~ 15

Function

Adjust Vertical Picture Position Adjust Vertical Picture Size

Adjust Vertical Slope Correction Adjust Vertical S-Correction

Adjust Horizontal Picture Size Adjust Horizontal Trapeziod

Adjust Horizontal Parabola Wave Adjust Horizontal Symmetry

Adjust Horizontal Corner Adjust Horizontal Position Adjust PIP Contrast

Adjust PIP Tinit Adjust PIP Vertical Position (Main Picture is PAL)

Adjust PIP Vertical Position (Main Picture is NTSC) Adjust PIP Horizontal Position Adjust PIP Green Cutoff Level

Remark

Not to be adjusted

Fixed Value

Alignment and Adjustments

Samsung Electronics 4-7

4-8-2(B) SCREEN CHANGE (I2C BUS GEOMETRIC ADJUSTMENT)

1 V Shift

V Slope

3 H EW

6 V Amp

V SC

H Trapizium

4 H Parabola

5 H Corner

H Shift

H Symmetry

Alignment and Adjustments

4-8 Samsung Electronics

4-8-2(C) VIDEO ADJUST 1

No.

1 2

3 4 5 6

7 8 9

10 11

12 13

14 15

OSD

Red Cufoff Green Cutoff Blue Cutoff

Red Drive Green Drive Blue Drive

Sub Bright Sub Contrast Sub Color

Sub Tint BCL Threshold BCL Gain BCL Time TTX Contrast YC Delay

Range

0 ~255 0 ~255

0 ~ 200

0 ~ 13 0 ~ 27

0 ~ 100 0 ~ 255

0 ~ 15 0 ~ 15

0 ~ 255

0 ~ 8

Function

Adjust Red Cutoff Level Adjust Green Cutoff Level Adjust Blue Cutoff Level

Adjust Red Output Gain Adjust Green Output Gain

Adjust Blue Output Gain Adjust Brightness Level

Adjust Contrast Level Adjust Color Level

Adjust Tint

Adjust Beam Control Limit Refer to Note 3

Adjust OSD/TTX Contrast Refer to Table 1

Remark

Low Light

High Light

Low Light

High Light

Not to be adjusted

WDRGB

BCL THESHOLD

1.8mA

1.6mA

MIN

BCL GAIN

MAX

Table 1. YC Delay Adjustment Table

Delay

Value

PAL

Def.

SECAM

Def.

Fixed Value

Beam Control Limit Characteristic

Note 3.

Initial Value

127 127 127 127 127 127 100

50 27

80 65

8 9

NTSC

The “Def.” means that TV is in AV mode.

✐

beam

IRE

Initial Value

185

255

0 0

33 39

Alignment and Adjustments

Samsung Electronics 4-9

OSD

B stretch-BTHR B stretch-BTLT B stretch-BAM

Coring RGB Bright RGB Contrast

EHT Time EHT Compensation

✐

4-8-2(E) VIDEO 3 ADJUST

No.

1 2

3 4 5 6 7

OSD

Peak Threshold Soft Limit Slope B Hard Limit Peak Video Ref

Peak Video Gain ACC-REF(PAL/NTSC) ACCR(SECAM)

Range

0 ~ 255

0 ~ 15

0 ~ 255

0 ~ 4

0 ~ 5 0 ~ 40 0 ~ 39

Function

White Peak Level Threshold

Refer to Picture Below

White Peak Level Threshold Reference White Peak Level Threshold Gain

Auto Color Control

Remark

Refer to Note

Below

No.

1 2 3

4 5

6 7

Range

0 ~ 55 0 ~ 15 0 ~ 31

10 ~ 31 0 ~ 255 0 ~ 255

0 ~ 15

0 ~ 255

Initial Value

4 20 45

0 90

Function

Black Stretch Threshold Black Stretch Tilt Position Black Stretch Amount Luma Peaking Filter Coring

OSD/TTX RGB Bright OSD/TTX RGB Contrast

Electronic High Tension Response Time Electronic High Tension Coefficient

Remark

Coring : The Value of Center Frequency for the active bandwidth.

4-8-2(D) VIDEO 2 ADJUST

✐

“Soft Limit” is that Limitting

the peak white without feed-back, but “Peak Limit” is that with feed-back for white peak level

✐

Soft Limit & Hard Limit

Note 4.

Fixed Value

Output

511

400

300

200

100

Part 1 Part 2

tilt 1 [0...511]

100 200 300 400 500 600 700 800 900 1023

Slope 1 [0...15]

0 2 4 6

8 10 12 14

tilt 2 [0...511]

Slope 2 [0...15]

0 2

4 6 8

12 14

Hard limiter

Soft Limit Slope B

range=256...511

Initial Value : Refer to Note 6 on the next page.

Alignment and Adjustments

4-10 Samsung Electronics

4-8-2(E) OPTION

No.

1 2 3

5 6

7 8

11 12 13

OSD

Language Sound

CRT

AV Mode

X-Ray Tilt Control

Auto FM PIP

Txt Language

LNA

Equalizer High Deviate

TTX On/Off

AV by CH key

Function

Arab, Iran, Lybya, CIS A2/NICAM, V-Dolby, Mono, L-Stereo

4:3, Wide, Q(12.8:9), 4:3-16:9, Q-16:9 2Scart, 2Scart+S, 1RCA, 2RCA, 2RCA+S,

2RCA+D, 2RCA+S+D, 1Scart Off, On Off, On

Off, On 2-Tuner, 1-Tuner, Off

Arabic, Farsi, Arab-Hebrew, West Europe, East Europe, Russian, Greek-Turkey

Off, On

Off, On Off, On

Off, On

Remark

OSD Language

Depending on IC601

Refer to Note 5

S:S-VHS, D:DVD

When PIP is “2-Tuner”, set to “ON”

Without “TV/VIDEO” key in the front panel, set to “On”

Sound

A2/NICAM

V-DOLBY

Mono

L-Stereo

IC601 MSP3400D, MSP3410D MSP3411G

Not used this mode for KS3A Chassis

Note 5.

Initial Value

Fixed Value

✐

Initital

Value

0 8

-15 6

2 8

Alignment and Adjustments

Samsung Electronics 4-11

OSD

VSU

H QEW

H ZOOM Parabola

H 16:9 Parabola

TTX H Shift

Mono Sound System

V Slice Level

Melody Volumn

No.

1 2 3

4 5

6 7

Range

96 ~ 111

-30 ~ 30

BG/DK/I/M

0 ~ 3

0 ~ 20

Function

Vertical Set Up Time

Adjust Horizontal Parabola in Zoom Mode Adjust Horizontal Parabola in 16:9 Mode Adjust Horizontal OSD/TTX Position

Adjust Melody Volumn

Remark

4-8-2(F) OTHERS

Fixed Value

Description LANGUAGE

SOUND

CRT

AV MODE

X-RAY

TILT CONTROL

AUTO FM

PIP

TEXT LANGUAGE

LNA

EQUALIZER

HIGH DEVIATE

TTX ON/OFF

AV BY CH KEY

OPTION BYTE

Note 6.

CS29A5WT8X/UMG

Initial Vaue

Arab

V-Dolby

4:3

2 RCA + S

OFF ON ON

OFF

Arabic

OFF ON ON ON ON

84 CC D8

CS29A6PF8X/HAC

Initial Vaue

Arab

V-Dolby

4:3

2 RCA + S

OFF

ON ON

2-Tuner

Farsi

ON ON ON ON

OFF

85 DC 5E

CS29A6WT8X/BWT

Initial Vaue

CIS

A2/Nicam

4:3

2 SCART + S

OFF ON

ON OFF

RUSSIAN

OFF ON ON ON OFF

83 AC 28

CS29A5MT9X/BWT

Initial Vaue

CIS

A2/Nicam

4:3

2 SCART + S

OFF ON ON

2-Tuner

RUSSIAN

ON ON ON ON ON

83 AC AE

Option.

4-9-1 Pin Layout

Alignment and Adjustments

4-12 Samsung Electronics

4-9 MICOM

Write Protect

EEPROM SDA

EEPROM SCL

Bus-Stop

Main SDA

Main SCL

Sound Reset

Video Reset

VDD 2.5V

GND

VDD 3.3V

CVBS Input

VDD 2.5V

GND

AFT

Scart1 Ident Scart2 Ident

Key 1

H-Sync

V-Sync

Key 3 Key 2

X-Ray Protect

IR Input

Stand-By LED

Time LED

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

I/O I/O IO I/O I/O I/O I/O I/O

ADC ADC ADC ADC

I/O I/O I/O I/O I/O I/O

S D A

5 X

PWM

I/O I/O

I/O

52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27

Tilt N.C. Power

Sound Mute N.C.

N.C. PX. Y

PX. Y VDD 3.3V

GND VDD 2.5V

CORE OSD-B OSD-G OSD-R

VDD 2.5V GND X-TAL Out

X-TAL In MICOM Reset

N.C. N.C.

VDD 3.3V GND

N.C. Relay

Alignment and Adjustments

Samsung Electronics 4-13

4-9-2 Pin Assignment Specification

DESCRIPTION

EEPROM Write Protection EEPROM Serial Data Line

EEPROM Serial Clock Line Disable Micom IIC

Peripheral IC Serial Data Line Peripheral IC Serial Clock Line

MSP IC Initial Control VDP IC Initial Control

TTX CVBS Input Analog B+

Analog Ground Auto Fine Tuning Control Scart1 Ident

Scart2 Ident Key1 Input

Horizontal Sync Input Vertical Sync Input

Key3 Input Key2 Input

X-Ray Protection Remocon Signal Input

LED Drive Output(Red) LED Drive Output(Green)

PIN NO

1 2 3

4 5

6 7

9 10 11 12 13 14 15

16 17 18 19 20

21 22 23

24 25

FUNCTION

I/O I/O I/O

I/O I/O

I/O I/O I/O Vdd

GND Vdd CVBS Vdd

GND ADC

ADC ADC ADC HS

VS I/O

I/O I/O I/O

I/O I/O

ASSIGN

Write Protect ROM SDA ROM SCL Bus Stop

Main SDA Main SCL Sound Reset

Video Reset VDD 2.5V

VDD 3.3V CVBS Input

VDD 2.5V

AFT SC1-ID SC2-ID Key1 H-Sync

V-Sync Key3 Key2 X-Ray IR-In STD-LED TIM-LED

IN/OUT

Out

I/O I/O In

I/O I/O

Out Out

In In

In In In In

In In Out Out

ACTIVE H/L

Low

Low Low

Alignment and Adjustments

4-14 Samsung Electronics

4-9-2 Pin Assignment Specification (Continued)

PIN NO

27 28

29 30 31

32 33 34

35 36

37 38 39 40

41 42 43 44

45 46 47 48 49 50 51 52

FUNCTION

I/O N.C. GND Vdd N.C.

N.C. Reset

X-In X-Out

GND Vdd R

G B COR Vdd

GND Vdd

I/O I/O

N.C. N.C.

I/O I/O N.C. I/O

ASSIGN

Relay

VDD 3.3V

Reset X-TAL In X-TAL Out

VDD 2.5V OSD-R

OSD-G OSD-B CORE

VDD 2.5V

VDD 3.3V PX.Y

PX.Y

S-Mute Power

Tilt

IN/OUT

Out

In In

Out

Out Out Out Out

In Out

Out Out

Out

ACTIVE H/L

Low

Low 6MHz 6MHz

High Low

PWM

DESCRIPTION

Activate Degausssing Coil Not Used (Programmed Gound Level)

Analog Ground Not Used (Programmed Gound Level)

Not Used (Programmed Gound Level) Micom Hardware Reset Crystal Oscillation Input Crystal Oscillation Output

Analog Ground Analog B+ OSD/TTX Output (Red) OSD/TTX Output (Green)

OSD/TTX Output (Blue) Fast Blank/Half Contrast Output

When The Caption Function Adopted, Used.

Not Used (Programmed Gound Level)

Sound Amp Mute Picture On/Off Control

Not Used (Programmed Gound Level) Tilt Control Output

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