Samsung CW29M066VGXXEC Manual de usuario

COLOR TELEVISION RECEIVER

Chassis : K55A(P) Youngstar_Rev.1

Model : CW29M066VGXXEC

CW29M066TGXXEC

COLOR TELEVISION RECEIVER CONTENTS

Alignment and Adjustments

Exploded Views and Parts List

Electrical Parts List

PCB Diagrams

Schematic Diagrams

SERVICE Manual

ELECTRONICS

©Samsung Electronics Co., Ltd. Mar. 2004

Printed in Korea

AA82-01386A

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.

Alignment and Adjustments

Samsung Electronics 1-1

1. Alignment and Adjustments

1-1 Adjustments

1-1-1 General Alignment Instructions

Usually, a color TV needs only slight touch-up adjustment upon installation. Check the basic

characteristics such as vertical size, horizontal size, and focus. Observe the picture and check for

good black and white details. There must be no objectionable color shading: If color shading is

present, demagnetize the receiver. If color shading persists, re-do purity and convergence adjustments.

Note :

1. This ‘4. Alignment and Adjustments’ applies to K55A chassis applications.

2. AC Power Supply: 160~300V or 100~240V, 50Hz

3. This service manual has been written on the basis of domestic remote-control model adopting K55A

chassis. Depending on sales location and product specifications, some of specifications herein may

be changed.

1-1-2 Focus Adjustment

K55A contains a dynamic focus circuit. When CRT PCB, FBT or CRT is replaced, be sure to adjust in the

following sequence:

Dynamic Focus Adjustment

1. Input a crosshatch pattern.

2. Select “Standard” from the menu,

3. Turn the Static Focus VR clockwise to set it to its maximum.

4. Turn the Dynamic Focus VR counterclockwise to set it to its

maximum.

5. Turn the Static Focus VR counterclockwise slowly for the clearest

center vertical line.

6. Turn the Dynamic Focus VR clockwise slowly for the clearest third line.

7. Check for the FOCUS of entire screen. If necessary, re-do adjustments 3~6.

After Adjustment

Alignment and Adjustments

1-2 Samsung Electronics

1-1-3 Screen Voltage Adjustment

1. Input a Toshiba pattern.

2. Use an oscilloscope to identify RK, BK, GK. And then adjust FBT Screen VR so that the voltage of

pedestal level doesn’t exceed 160V.

If a Toshiba pattern is not available, cancel the blue screen and input “No Signal” to AV IN so the voltage

of pedestal level doesn’t exceed 175V.

If an oscilloscope is not available, use a DC multi-meter in No Signal (black screen) to adjust RK, BK, GK

so that the highest voltage becomes 160Vp-p.

1-1-4 White Balance Adjustment

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

2. Enter the Service Mode by pressing the remote control keys in the following sequence:

Power Off ➞Display ➞ Menu ➞Mute ➞Power On

3. Initialize all set data.

4. Input a Toshiba pattern.

5. Using a probe(CA100), do the White Balance adjustments.

(1) Adjust Low-Light.

- Adjust Sub Brightness to set Y.

- Adjust B Cutoff to set y.

- Adjust R Cutoff to set x.

(2) Adjust High-Light.

- Adjust Sub Contrast to set Y.

- Adjust B Drive to set y.

- Adjust R Drive to set x.

(3) Check the value of Low-Light. If necessary, readjust Low-Light.

(4) Check the value of High-Light. If necessary, readjust High-Light.15

Alignment and Adjustments

Samsung Electronics 1-3

1-1-5 When adjusting Screen Voltage and White Balance

1. Screen Voltage and White Balance are related each other. Make sure both adjustments are correct.

2. Adjust Screen Voltage before White Balance Adjustments. Make sure Screen Voltage is correct.

3. If White Balance has been readjusted, re-check Screen Voltage.

4. After adjustments are complete, check the following.

- If spots appear on the screen after pressing the Power On/Off key, readjust Screen Voltage.

- If flyback lines appear on the screen, readjust Screen Voltage.

Alignment and Adjustments

1-4 Samsung Electronics

1-1-6 White Balance Adjustement.

Youngstar W/B adjusting method

DNIe "ON"

EnterFactory Mode

Video Adjust 1

Set Color On/Off item to "0".

Read X1, Y1 value with W/B measuring equipment.

Video Adjust1

Set Color On/Off item to "1".

Enter Video Adjust DNIe, and adjust X2 and Y2 close to X1

and Y1 by changing AD9883R Offset, Boffset value.

20, Y1 20)

At this time, the value read by W/B measuring

equipment refers to X2, Y2.

Move to VideoAdjust 1, and adjust the value to X1 3,

Y1 3 by changing Cr, Cb Offset value.

Adjust X and Y value with W/B adjusted value

per area by changing R/B Cutoff and R/B Drive value.

(Spec: X1 +

Alignment and Adjustments

Samsung Electronics 1-5

ASSIGNMENT

RESET Control jack during E2PROM latch UP(Function:Low)SERIAL H

E2PROM only SDA LINE

Automation and after-sales service related BUS STOP(STOP : LOW)

CXA2165 /CXA2151Q/VSP940X/BA7654F/MSP34XX/TUNER Control jack

Reset when MSP34XX IC(SOUND PROCESS IC)has an error(Active : LOW)

Reset when VSP940X IC(1-chip IC)has an error

Analog GND

TTX and USA Caption Input source line(1V p-p)

Main AFT Control jack(0 ~ 3.3V)

MICOM “H-SYNC” Input, POSITIVE Input(3.3V p-p)

MICOM “V-SYNC” Input, POSITIVE Input(3.3V p-p)

OPEN

TV/VIDEO switching control jack

Function : LOW

Remote Control Input Jack

STAND BY : Hight, OFF : LOW

TIME ON : H TIME OFF : L

DEGAUSSIGN COIL CONTROL:Based on standard specifications

H : IN1, L : IN2(BA7657F) PIN(#16) Control jack

Reset active : HIGH

Crystal oscillation input jack

1-2 MICOM PORT

FUNCTION

W-PORT

ROM SDA

ROM SCL

BUS-STOP

MAIN SDA

MAIN SCL

S-RESET

V-RESET

VDD 2.5V

GND

VDD3.3V

CVBS IN

VDD2.5V

GND

AFT

SC1-ID

SC2-ID

KEY-1

H-SYNC

V-SYNC

KEY-3

KEY-2

X-RAY

IR-IN

STD-LED

TIM-LED

RELAY

SW1

GND

VDD 3.3V

RESET

X-IN

X-OUT

FIRST STATE

HIGH

SERIAL H

HIGH

SERIAL H

HIGH

IV p-p

HIGH

POSITIVE

HIGH

LOW

HIGH

LOW

RANGE

TV MODE

0 ~ 2V 16 : 9 MODE

4.5 ~ 7V 4 : 3 MODE

9.5 ~ 12V

AV MODE

16 : 9 MODE

0 ~ 2V MEMU

0~0.1V VOL-

0.1~0.7V VOL+

07~13V CH-

1.3~1.9V CH+

0.9~2.4V

Alignment and Adjustments

1-6 Samsung Electronics

ASSIGNMENT

OSD R-OUT Output jack (0.38V p-p), half tone : 0.9V p-p

OSD G-OUT Output jack (0.38V p-p), half tone : 0.9V p-p

OSD B-OUT Output jack (0.38V p-p), half tone : 0.9V p-p

OSD F/B-OUT Output jack (Clamped at STAND PULSE, Half Tone : LOW)

LOW : GNDHIGH : OPEN STATUS

Initially, these pins select an input source at LOW state

System (NTSC/PAL) MUST be separated

Active “LOW”

1080i control jack : 1080i (LOW), RF (Hight)

Magnetic field control

FUNCTION

GND

VDD 2.5V

OSD-R

OSD-G

OSD-B

CPRE

VDD 2.5V

GND

VDD 3.3V

PX, Y

SW3

SW2

S-MUTE

POWER

H,P-ID

TILT

FIRST STATE

HIGH

1.2V p-p

0.9V p-p

HIGH

1.75KHz (480i/480P)

33.75KHz (1080i)

Alignment and Adjustments

Samsung Electronics 1-7

1-3 Factory Adjustment

1-3-1 Factory Adjustment values

SERVICE

Deflection

VGE offset

Video Adjust1

Video Adjust2

Video Adjust3

VGE Adujust

Video Adujust DNle

Option

YC Delay

EEPROM

Reset

1-3-2 Factory Data

ITEMS

V-AMP

V-SHIFT

H-EW

H-SHIFT

V-LIN

UP-LIN(Fix)

LOW-LIN(Fix)

V-SC(Fix)

H-PAR

UP-COR

LOW-COR

H-TRA

BOW

ANGLE

V-POSI(Fix)

29”

32”

34"

29"

32"

REMARK

Vertical AMP adj( Gain Control)

Vertical Position adj (DC bias adj)

Horizontal AMP adj(Gain Control)

Horizontal Position adj (DC bias adj)

Vertical Linearity adj(TOP/Bottom adj)

Vertical Linearity adj(TOP adj)

Vertical Linearity adj(Bottom adj)

Vertical S correction adj

Horizontal pin distortion adj

Horizontal pin distortion up adj

Horizontal pin distortion low adj

Horizontal Trapezium distortion adj

Vertical line slope adj(parabola)

Vertical Linearity adj(sawtooth)

V-POSITION ADJ as to CRT INCH

DEFLECTION : PAL

* CIS W/B Angular

H/L:285/285 45(+,-5)FT L/L:285/285 1.5(+,- 0.3FT)

*EUROPE W/B Angular

H/L:290/290 35FT L/L:290/290 1.5FT

CIS EUROPE

Alignment and Adjustments

1-8 Samsung Electronics

ITEMS

V-AMP

V-SHIFT

H-EW

H-SHIFT

V-LIN

UP-LIN(Fix)

LOW-LIN(Fix)

V-SC(Fix)

H-PAR

UP-COR

LOW-COR

H-TRA

BOW

ANGLE

V-POSI(Fix)

CXA2151SUB01

CXA2151SUB02

29”SDI

REMARK

Vertical AMP adj( Gain Control)

Vertical Position adj (DC bias adj)

Horizontal AMP adj(Gain Control)

Horizontal Position adj (DC bias adj)

Vertical Linearity adj(TOP/Bottom adj)

Vertical Linearity adj(TOP adj)

Vertical Linearity adj(Bottom adj)

Vertical S correction adj

Horizontal pin distortion adj

Horizontal pin distortion up adj

Horizontal pin distortion low adj

Horizontal Trapezium distortion adj

Vertical line slope adj(parabola)

Vertical Linearity adj(sawtooth)

V-POSITION ADJ as to CRT INCH

Australia

32”LG

29”SDI

32”LG

34”TSB

Southeast Asia/Hongkong

S.Asia

DEFLECTION : PAL

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