SAMSUNG CS-29A11SSQ Service Manual Alignment & Adjustment

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

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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.

ASSIGNMENT RESET Control jack during E2PROM latch UP(Function:Low)SERIAL H E2PROM only SDA LINE E2PROM only SDA LINE Automation and after-sales service related BUS STOP(STOP : LOW) CXA2165 /CXA2151Q/VSP940X/BA7654F/MSP34XX/TUNER Control jack 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

Alignment and Adjustments

1-4 Samsung Electronics

1-2 MICOM PORT

1 2 3 4 5 6 7 8

9 10 11 12 13 14 15

19 20 21 22 23 24 25 26 27 28 29 30 33 34 35

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 SERIAL H

HIGH

SERIAL H

HIGH

IV p-p

HIGH

POSITIVE 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

Samsung Electronics 1-5

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

36 37 38 39 40 41 42 43 44 45 46

49 50 51 52

FUNCTION

GND

VDD 2.5V

OSD-R OSD-G OSD-B

CPRE

VDD 2.5V

GND

VDD 3.3V

PX, Y PX, Y

SW3

SW2

S-MUTE

POWER

H,P-ID

TILT

FIRST STATE

HIGH

1.2V p-p

0.9V p-p HIGH

HIGH HIGH HIGH

HIGH

F0 M

1.75KHz (480i/480P)

33.75KHz (1080i)

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