Samsung 330TFT, 531 TFT, 331 TFT, 530 TFT User Manual

COLOR MONITOR

SyncMaster 330TFT

SyncMaster 530TFT

SyncMaster 331TFT

SyncMaster 531TFT

SERVICEManual

COLOR MONITOR

SAMSUNG
EXIT	MENU
-	+

1.Precautions

2.Reference Information

3.Product Specifications

4.Operating Instructions

5.Disassembly & Reassembly

6.Troubleshooting

7.Exploded View & Parts

8.Block Diagram

9.Electrical Parts List

10.PCB Diagrams

11.Wiring Diagram

12.Schematic Diagrams

Samsung Electronics Co., Ltd. July 1998

Printed in Korea

Code No.: BN68-60017A

1 Precautions

Follow these safety, servicing and ESD precautions to prevent damage and to protect against potential hazards such as electrical shock.

1-1 Safety Precautions

1-1-1 Warnings

1.For continued safety, do not attempt to modify the circuit board.

2.Disconnect the AC power and DC Power Jack before servicing.

3.When the chassis is operating, semiconductor heatsinks are potential shock hazards.

			(READING SHOULD
			NOT BE ABOVE 0.5mA)
				LEAKAGE
DEVICE
				CURRENT
UNDER
				TESTER
TEST
		TEST ALL
	EXPOSED METAL
		SURFACES

1-1-2 Servicing the LCD Monitor

1.When servicing the LCD Monitor, remove the static charge by connecting a 10k ohm resistor in series with an insulated wire (such as a test probe) between the chassis and the anode lead. (Disconnect the AC line cord from the AC outlet.)

2.It is essential that service technicians have an accurate voltage meter available at all times. Check the calibration of this meter periodically.

1-1-3 Fire and Shock Hazard

Before returning the monitor to the user, perform the following safety checks:

1.Inspect each lead dress to make certain that the leads are not pinched or that hardware is not lodged between the chassis and other metal parts in the monitor.

2.Inspect all protective devices such as nonmetallic control knobs, insulating materials, cabinet backs, adjustment and compartment covers or shields, isolation resistor-capacitor networks, mechanical insulators, etc.

3.Leakage Current Hot Check (Figure 1-1): WARNING:

Do not use an isolation transformer during this test.

Use a leakage current tester or a metering system that complies with American National Standards Institute (ANSI C101.1, Leakage Current for Appliances), and Underwriters Laboratories (UL Publication UL1410, 59.7).

2-WIRE CORD

ALSO TEST WITH

PLUG REVERSED

(USING AC ADAPTER

PLUG AS REQUIRED) EARTH GROUND

Figure 1-1. Leakage Current Test Circuit

4.With the unit completely reassembled, plug the AC line cord directly into a 120V AC outlet. With the unit’s AC switch first in the ON position and then OFF, measure the current between a known earth ground (metal water pipe, conduit, etc.) and all exposed metal parts, including: metal cabinets, screwheads and control shafts. The current measured should not exceed 0.5 milliamp. Reverse the power-plug prongs in the AC outlet and repeat the test.

1-1-4 Product Safety Notices

Some electrical and mechanical parts have special safety-related characteristics which are often not evident from visual inspection. The protection they give may not be obtained by replacing them with components rated for higher voltage, wattage, etc. Parts that have special safety characteristics are identified by

! on schematics and parts lists. A substitute replacement that does not have the same safety characteristics as the recommended replacement part might create shock, fire and / or other hazards. Product safety is under review continuously and new instructions are issued whenever appropriate.

SyncMaster 33*TFT/53*TFT

1-1

1 Precautions

1-2 Servicing Precautions

WARNING: An electrolytic capacitor installed with the wrong polarity might explode.

Caution: Before servicing units covered by this service manual, read and follow the Safety Precautions section of this manual.

Note: If unforeseen circumstances create conflict between the following servicing precautions and any of the safety precautions, always follow the safety precautions.

1-2-1 General Servicing Precautions

1.Always unplug the unit’s AC power cord from the AC power source and disconnect the DC Power Jack before attempting to:

(a)remove or reinstall any component or assembly,

(b)disconnect PCB plugs or connectors, (c) connect a test component in parallel with an electrolytic capacitor.

2.Some components are raised above the printed circuit board for safety. An insulation tube or tape is sometimes used. The internal wiring is sometimes clamped to prevent contact with thermally hot components. Reinstall all such elements to their original position.

3.After servicing, always check that the screws, components and wiring have been correctly reinstalled. Make sure that the area around the serviced part has not been damaged.

4.Check the insulation between the blades of the AC plug and accessible conductive parts (examples: metal panels, input terminals and earphone jacks).

5.Insulation Checking Procedure: Disconnect the power cord from the AC source and turn the power switch ON. Connect an insulation resistance meter (500 V) to the blades of the AC plug.

The insulation resistance between each blade of the AC plug and accessible conductive parts (see above) should be greater than 1 megohm.

6.Always connect a test instrument’s ground lead to the instrument chassis ground before connecting the positive lead; always remove the instrument’s ground lead last.

1-3 Electrostatically Sensitive Devices (ESD) Precautions

Some semiconductor (solid state) devices can be easily damaged by static electricity. Such components are commonly called Electrostatically Sensitive Devices (ESD). Examples of typical ESD devices are integrated circuits and some fieldeffect transistors. The following techniques will reduce the incidence of component damage caused by static electricity.

1.Immediately before handling any semiconductor components or assemblies, drain the electrostatic charge from your body by touching a known earth ground. Alternatively, wear a discharging wriststrap device. To avoid a shock hazard, be sure to remove the wrist strap before applying power to the monitor.

2.After removing an ESD-equipped assembly, place it on a conductive surface such as aluminum foil to prevent accumulation of an electrostatic charge.

3.Do not use freon-propelled chemicals. These can generate electrical charges sufficient to damage ESDs.

4.Use only a grounded-tip soldering iron to solder or desolder ESDs.

5.Use only an anti-static solder removal device. Some solder removal devices not classified as “anti-static” can generate electrical charges sufficient to damage ESDs.

6.Do not remove a replacement ESD from its protective package until you are ready to install it. Most replacement ESDs are packaged with leads that are electrically shorted together by conductive foam, aluminum foil or other conductive materials.

7.Immediately before removing the protective material from the leads of a replacement ESD, touch the protective material to the chassis or circuit assembly into which the device will be installed.

Caution: Be sure no power is applied to the chassis or circuit and observe all other safety precautions.

8.Minimize body motions when handling unpackaged replacement ESDs. Motions such as brushing clothes together, or lifting your foot from a carpeted floor can generate enough static electricity to damage an ESD.

1-2	SyncMaster 33*TFT/53*TFT

2 Reference Information

2-1 List of Abbreviations, Symbols and Acronyms

2-1-1 Abbreviations

Abbreviation	Definition
AUTO_MENB	AUTO ENABLE (NEG.)
AUTO_SOG	SINK ON GREEN ENABLE
BL_EN	LCD PANEL BACK LIGHT ENABLE
BRIGHT	BRIGHTNESS CONTROL
DAB(7:0)	BLUE COLOR DATA (ODD) FROM IC305
DAG(7:0)	GREEN COLOR DATA (ODD) FROM IC305
DAR(7:0)	RED COLOR DATA (ODD) FROM IC305
DBB(7:0)	BLUE COLOR DATA (EVEN) FROM IC305
DBG(7:0)	GREEN COLOR DATA (EVEN) FROM IC305
DBR(7:0)	RED COLOR DATA (EVEN) FROM IC305
DDC_SCL	DDC I2C CLOCK FROM PC
DDC_SDA	DDC I2C DATA FROM PC
DEN	LVDS DATA ENABLE
DFSYNCB	CONTROL SIGNAL FROM IC301 TO IC305
DHCLK	DOT CLOCK FOR PANEL DRIVING
DHS	LVDS HSYNC
DREFCLK1	67MHz OSC CLK FOR IC305
DV_BLU	OSD BLUE DATA
DV_FBK	OSD ENABLE
DV_GRN	OSD GREEN DATA
DV_RED	OSD RED DATA
DVACTIV1B	HSYNC FOR OSD (NEG.)
DVCLK	DOT CLOCK FOR OSD
DVS	LVDS VSYNC
DVSYNCB	VSYNC FOR OSD (NEG.)
FSD(47:0)	VIDEO DATA BETWEEN IC301 AND
	IC302,IC303,IC304
HSYNC_PLL	HSYNC FOR PLL
INVERT	INTERLACE CONTROL SIGNAL
KEY1	FUNCTION KEY SIGNAL1 TO MICOM
KEY2	FUNCTION KEY SIGNAL2 TO MICOM
LED	LED ON
LVDS_DATA	DATA OUTPUT FROM IC310, IC311
LVDS_EN	LVDS ENABLE
M_HSYNC	BUFFERED MICOM OUTPUT HSYNC
M_HSYNC1	MICOM OUTPUT HSYNC
M_VSYNC	BUFFERED MICOM OUTPUT VSYNC
M_VSYNC1	MICOM OUTPUT VSYNC
OSCOUT	BUFFERED 24MHz CLOCK

Abbreviation	Definition
OSCOUT1	24MHz CLOCK
PANEL_EN	+12V_PANEL/+5V_PANEL ENABLE
PC_BLUE_IN	BLUE COLOR SIGNAL FROM PC
PC_GREEN_IN	GREEN COLOR SIGNAL FROM PC
PC_HSYNC_IN	HSYNC FROM PC
PC_RED_IN	RED COLOR SIGNAL FROM PC
PC_VSYNC_IN	VSYNC FROM PC
PCBLUE(7:0)	BLUE COLOR DATA FROM IC101
PCCLAMP	BUFFERED VIDEO CLAMP SIGNAL
PCCLAMP1	VIDEO CLAMP SIGNAL
PCCLK	PLL CLOCK OUT FOR IC301
PCCLK2	PLL CLOCK OUT FOR IC405
PCCLK3	PLL CLOCK OUT FOR IC110
PCGREEN(7:0)	GREEN COLOR DATA FROM ADC(IC101)
PCRED(7:0)	RED COLOR DATA FROM IC101
PCVSYNC2	BUFFERED VSYNC
RESETB	RESET (NEG.)
RGB_HSYNC	HSYNC FOR MICOM(IC401)
RGB_VSYNC	VSYNC FOR MICOM(IC401)
SCL	I2C CLOCK
SCSB	IC305 ENABLE
SDA	I2C DATA
SOG_CSYNC	COMPOSITE SYNC FROM SOG
SOURCE_PC	SELF RASTER CHECK SIGNAL
SPI_MISO	SERIAL INPUT DATA CONTROL
SPI_MOSI	SERIAL OUTPUT DATA CONTROL
SPI_SCK	SERIAL CLOCK
SW_REG_ENB	POWER ON/OFF CONTROL
VAIL_CSB	IC301 ENABLE
VCBLNKB	CONTROL SIGNAL FROM IC305 TO IC301
VCC	DC 5V FOR MICOM(IC401)
VCLREQB	CONTROL SIGNAL FROM IC305 TO IC301
VGABLUE(7:0)	NC
VGAGREEN(7:0)	NC
VGARED(7:0)	NC
VGBBLUE(7:0)	BLUE COLOR DATA FROM IC301
VGBGREEN(7:0)	GREEN COLOR DATA FROM IC301
VGBRED(7:0)	RED COLOR DATA FROM IC301

SyncMaster 33*TFT/53*TFT

2-1

2 Reference Information

2-1-2 Symbols

Hot Ground

Cold Ground

!Provides special safety considerations

2-1-2 Acronyms

Acronym	Definition
ABL	Automatic Brightness Limits
AC	Alternating Current
ACL	Automatic Contrast Limit
AFC	Automatic Frequency Control
ANSI	American National Standards Institute
CMOS	Complementary Metal Oxide
	Semiconductor
CRT	Cathode Ray Tube
DC	Direct Current
DDC	Data Display Channel
DF	Dynamic Focus
DMM	Digital Multimeter
DPMS	Display Power Management Signaling
DVM	Digital Voltmeter
DY	Deflection Yoke
EEPROM	Electrically Erasable and
	Programmable Read only Memory
ESD	Electrostatically Sensitive Device
ESF	Electronic Static Field
FBT	Flyback Transformer
FET	Field Effect Transistor
FH	Horizontal Frequency
FS	Fail Safe
FV	Vertical Frequency
GD	Geometric Distortion

Acronym	Definition
H/V	Horizontal/Vertical
HV	High Voltage
I/O	Input/Output
IC	Integrated Circuit
LED	Light Emitting Diode
MAC	Macintosh
MOFA	Mask Outside Frame Assembly
OCP	Over Current Protection
OP AMP	Operational Amplifier
OSD	On Screen Display
P-P	Peak to Peak
PCB	Printed Circuit Board
PLL	Phase Locked Loop
PWM	Pulse Width Modulation
SMPS	Switch Mode Power Supply
SVGA	Super Video Graphics Array
TP	Test Point
UL	Underwriters Laboratories
USB	Universal Serial Bus
VESA	Video Electronics Standard
	Association
VGA	Video Graphics Array
VR	Variable Registor
W/B	White Balance

2-2	SyncMaster 33*TFT/53*TFT

3 Product Specifications

3-1 Specifications

Item				Description
LCD Panel	TFT-LCD panel, RGB vertical stripe, normaly white, 15-Inch viewable,
	0.297 (H) x 0.297 (V) pixel pitch, 13.3-Inch viewable, 0.264 (H) x 0.264 (V) pixel pitch
Scanning Frequency	Horizontal : 30 kHz to 61 kHz (Automatic)
	Vertical	: 50 Hz to 75 Hz (Automatic)
Display Colors	16.7 Million colors
Maximum Resolution	Horizontal : 1024 Pixels
	Vertical	: 768 Pixels
Input Video Signal	Analog, 0.714 Vp-p ± 5% positive at 75 Ω , internally terminated
Input Sync Signal	Type:	Seperate H/V sync, Composite H/V, Sync-on-Green, automatic synchronization
		without external switch of sync type
	Level:	TTL level
Maximum Pixel Clock rate	80 MHz
Active Display	13.3”: 270.3 mm / 207.8 mm
Horizontal/Vertical	15”: 304.1 mm / 228.1 mm
AC power voltage & Frequency	AC 90 to 264 Volts, 60/ 50 Hz ± 3 Hz
Power Consumption	13.3”: 40 W (max.), 15”: 45 W (max.)
Dimensions		13.3”			15”
Unit (W x D x H)	13.9x7.7x15.6 Inches (354.3 x 195.6 x 395 mm)				15.9x7.7x16.5 Inches (404 x 196.6 x 418.7 mm)
Carton (W x D x H)	17.9 x 11.1 x 19.2 Inches (455 x 282 x 488 mm)				18.7 x 11.1 x 20.1 Inches (475 x 282 x 510 mm)
Weight
(Net/Gross)	13.3”: 6.4 kg / 8.0 kg, 15”: 7.5 kg / 9.5 kg
Environmental Considerations	Operating Temperature		:	50°F to 104°F (10°C to 40°C)
	Humidity : 10 % to 80 %
	Storage Temperature		:	-13°F to 113°F (-25°C to 45°C)
	Humidity : 5 % to 95 %
Audio Characteristics	• Audio Characteristics
	• Built-in Microphone: High-sensitivity condenser microphone (mono)
	• Audio input: Left/Right Stereo phone jack, 0.7 Vrms
	• Sound output: 1 W (left) + 1 W (right)/THD 1% at 8ohm
	• Frequency response: 80 Hz~20 kHz (at –3dB)
	• Headphone: Max 50mW output (3.5-pi jack)
	• Speaker: Internal semi Dome (8ohm x 2)
• SyncMaster 33*TFT/53*TFT complies with SWEDAC (MPR II) recommendations for reduced electromagnetic fields.
• Designs and specifications are subject to change without prior notice.

SyncMaster 33*TFT/53*TFT

3-1

3 Product Specifications

3-2 Pin Assignments
	Sync	15-Pin Signal Cable Connector
	Type
Pin No.	Separate	Composite	Sync-on-green
1	Red	Red	Red
2	Green	Green	Green + H/V Sync
3	Blue	Blue	Blue
4	GND	GND	GND
5	GND (DDC Return)	GND (DDC Return)	GND (DDC Return)
6	GND-R	GND-R	GND-R
7	GND-G	GND-G	GND-G
8	GND-B	GND-B	GND-B
9	No Connection	No Connection	Not Used
10	GND-Sync/Self Test	GND-Sync/Self Test	GND-Sync/Self Test
11	GND	GND	GND
12	DDC Data	DDC Data	DDC Data
13	H-Sync	H/V-Sync	Not Used
14	V-Sync	Not Used	Not Used
15	DDC Clock	DDC Clock	DDC Clock

Sync		26-Pin Signal Cable Connector
Type
Pin No.	Separate	Composite	Sync-on-green
1	Red	Red	Red
2	Green	Green	Green + H/V Sync
3	Blue	Blue	Blue
4	GND	GND	GND
5	GND (DDC Return)	GND (DDC Return)	GND (DDC Return)
6	GND-R	GND-R	GND-R
7	GND-G	GND-G	GND-G
8	GND-B	GND-B	GND-B
9	No Connection	No Connection	Not Used
10	GND-Sync/Self Test	GND-Sync/Self Test	GND-Sync/Self Test
11	GND	GND	GND
12	DDC Data	DDC Data	DDC Data
13	H-Sync	H/V-Sync	Not Used
14	V-Sync	Not Used	Not Used
15	DDC Clock	DDC Clock	DDC Clock
16 ~26	GND	GND	GND
3-2			SyncMaster 33*TFT/53*TFT

3 Product Specifications

3-3 Timing Chart

This section of the service manual describes the timing that the computer industry recognizes as standard for computer-generated video signals.

Table 3-1. Timing Chart

Mode		IBM				VESA
	VGA1/70 Hz	VGA2/70 Hz	VGA3/60 Hz	640/72 Hz	640/75 Hz	800/56 Hz	800/60 Hz
Timing	640 x 350	720 x 400	640 x 480	640 x 480	640 x 480	800 x 600	800 x 600
fH (kHz)	31.469	31.469	31.469	37.861	37.500	35.156	37.879
A µsec	31.778	31.777	31.778	26.413	26.667	28.444	26.400
B µsec	3.813	3.813	3.813	1.270	2.032	2.000	3.200
C µsec	1.589	1.589	1.589	3.810	3.810	3.556	2.200
D µsec	26.058	26.058	26.058	20.825	20.317	22.222	20.000
E µsec	0.318	0.318	0.318	0.508	0.508	0.667	1.000
fV (Hz)	70.086	70.087	59.940	72.809	75.000	56.250	60.317
O msec	14.268	14.268	16.683	13.735	13.333	17.778	16.579
P msec	0.064	0.064	0.064	0.079	0.080	0.057	0.106
Q msec	1.716	0.858	0.794	0.528	0.427	0.626	0.607
R msec	11.504	13.155	15.761	13.100	12.800	17.067	15.840
S msec	0.985	0.191	0.064	0.026	0.027	0.028	0.026
Clock
Frequency	25.175	28.322	25.175	31.500	31.500	36.000	40.000
(MHz)
Polarity
H.Sync	Positive	Negative	Negative	Negative	Negative	Positive	Positive
V.Sync	Negative	Positive	Negative	Negative	Negative	Negative	Positive
Remark	Separate	Separate	Separate	Separate	Separate	Separate	Separate

		Separate Sync
Horizontal			Vertical
Video			Video
C C	DD	E E	Q Q	R R	S S
Sync			Sync
	B			PP
	B
	A A			O O

A : Line time total	B : Horizontal sync width	O : Frame time total	P : Vertical sync width
C : Back porch	D : Active time	Q : Back porch	R : Active time
E : Front porch		S : Front porch

SyncMaster 33*TFT/53*TFT

3-3

3 Product Specifications

Table 3-1. Timing Chart Continued

Mode			VESA				MAC.
	800/72 Hz	800/75 Hz	1024/60 Hz	1024/70 Hz	1024/75 Hz	640/67 Hz	832/75 Hz
Timing	800 x 600	800 x 600	1024 x 768	1024 x 768	1024 x 768	60 x 480	832 x 624
fH (kHz)	48.077	46.875	48.363	56.476	60.023	35.000	49.726
A µsec	20.800	21.333	20.677	17.707	16.660	28.571	20.110
B µsec	2.400	1.616	2.092	1.813	1.219	2.116	1.117
C µsec	1.280	3.232	2.462	1.920	2.235	3.175	3.910
D µsec	16.000	16.162	15.754	13.653	13.003	21.164	14.524
E µsec	1.120	0.323	0.369	0.320	0.203	2.116	0.559
fV (Hz)	72.188	75.000	60.004	70.069	75.029	66.667	74.551
O msec	13.853	13.333	16.666	14.272	13.328	15.000	13.414
P msec	0.125	0.064	0.124	0.106	0.050	0.086	0.060
Q msec	0.478	0.448	0.600	0.513	0.466	1.114	0.784
R msec	12.480	12.800	15.880	13.599	12.795	13.714	12.549
S msec	0.770	0.021	0.062	0.053	0.017	0.086	0.020
Clock	50.000	49.500	65.000	75.000	78.750	30.240	57.284
Frequency
(MHz)
Polarity	Positive	Positive	Negative	Negative	Positive	Negative	Negative
H.Sync
V.Sync	Positive	Positive	Negative	Negative	Positive	Negative	Negative
Remark	Separate	Separate	Separate	Separate	Separate	Separate	Separate

		Separate Sync
Horizontal			Vertical
Video			Video
C C	DD	E E	Q Q	R R	S S
Sync			Sync
	B			PP
	B
	A A			O O

A : Line time total	B : Horizontal sync width	O : Frame time total	P : Vertical sync width
C : Back porch	D : Active time	Q : Back porch	R : Active time
E : Front porch		S : Front porch

3-4	SyncMaster 33*TFT/53*TFT

4 Operating Instructions

4-1 Control and Connectors

4-1-1 SyncMaster 331TFT/531TFT
1	Power Port
	2

Signal Cable

4-2. Rear View

G

EXIT		MENU
-	+	Table 4-1. Front Panel Controls

		Location	Symbol	Description
3	4	1		Power Button
		5

2

Figure 4-1. Front View and Control

3	EXIT	EXIT Button
4	- +	Up / Down / + / – Buttons

5	MENU

MENU Button

SyncMaster 33*TFT/53*TFT

4-1

4 Operating Instructions

4-1-2 SyncMaster 330TFT/530TFT

SAMSUNG	+		2
-		MENU
EXIT

Audio in port

1	MIC	AUDIO
	OUT	IN

Headphone jack

External microphone jack

Microphone out port

Power port

				Figure 4-4. Rear View
SAMSUNG
EXIT			MENU	Table 4-2. Front Panel Controls
3	-	+	4

					Location	Symbol		Description
5	ON/OFF
	VOLUME	BASS	TREBLE	MIC	1			Power Button
	MIN MAX	MIN MAX	MIN					Power Indicator
	6			9	3	EXIT		Menu Button
		7	8
					4	MENU		Exit Button
		10
					11
					5	-	+	Up / Down / + / – Buttons
	Figure 4-3. Front View and Control					VOLUME
						ON/OFF
					6			Audio On / Off & Volume Buttons
						MIN	MAX
						BASS
					7			Bass Button
						MIN	MAX
						TREBLE
					8			Treble Button
						MIN	MAX
						MIC
					9			Microphone On / Off Button
						ON	OFF
					10			Microphone
					11			Amplified Stereo Speakers

4-2	SyncMaster 33*TFT/53*TFT

4 Operating Instructions

4-2 Microprocessor Controls and Functions

This monitor has no “service only” micom controls. Should there be a problem with the microprocessor, replace the entire circuit board. There are, however, user accessible adjustment features that are described below.

This monitor has factory preset display settings for each of the signals listed in the standard display modes Timing Chart (see pages 3-3 and 3-4). As a result, when the monitor senses one of the standard signal timings, it automatically adjusts to an optimum size and position.

However, the user may wish to adjust the monitor to their own preferred settings rather than use those preset at the factory. The monitor saves up to 16 user defined settings.

4-2-1 OSD Window

The adjustable features described below all use the on-screen menu system.

1.Push the button to open the display the onscreen menu.

2.Use the or button to change an adjustment icon, use the button to highlight an adjustment icon, then use the + or – buttons to make the adjustments.

3.To select another adjustment on the same

screen, use the or button to move to the next selection.

4.When you are done making adjustments on an adjustment icon, push the EXIT button.

5.When you are done making all adjustments, push the EXIT button.

Table 4-3 shows the adjustment types and their icons.

Table 4-3. Available adjustments

Icon

Description

Adjustment Range

Icon

Description

Adjustment Range

IBM

VGA1/70 Hz

0-100

Position

0 ~ 100

740-860

Horizontal

0 ~ 100

Vertical

VGA2/70 Hz

0-100

840-960

Auto Reset

Auto Adjustment

No/Yes

Image Lock

VGA3/60 Hz

0-100

Geometry

No/Yes

740-860

Fine

Color

No/Yes

VESA

SVGA/56 Hz

0-100

Coarse

964-1084

Image Size

x1, x2, x4, x8

SVGA/60 Hz

0-100

Zoom

Normal/Expand

996-1116

Display Size

XGA/60 Hz

0-100

Misc.

1284-1404

Language

Brightness

0 ~ 100

Menu Position

0 ~ 100

Menu Display Time

0 ~ 100

Contrast

0 ~ 100

Display Mode

Color Control

Color Temperature

Red

0 ~ 100

Mode1

Green

0 ~ 100

Mode2

Blue

0 ~ 100

Mode3

SyncMaster 33*TFT/53*TFT

4-3

4 Operating Instructions

4-3 Audio Controls

Your LCD monitor provides four audio control buttons located on the front of the stand.

4-3-1 Audio Adjustments

To access the on/off, volume, bass and treble functions push the appropriate blue control button until it pops out then turn it to the right or left to adjust the function.

Function	Effect of Control Movement
Name	Left	Right
Audio On/Off	Off	On
and Volume	Decrease volume	Increase volume
Bass	Decrease Low sounds	Increase low sounds
Treble	Decrease high sounds	Increase High sounds

Your LCD monitor includes an internal microphone which you can turn On or Off using the rightmost control of the Audio controls.

	Function	Effect of Control Movement
	Name	In	Out
	Audio On/Off	Off	On
	and Volume

4-4 Power Management System

This monitor has a built-in power management system called PowerSaver. This system saves energy by switching your monitor into an off mode when it has not been used for an certain amount of time.

Note 1: This monitor automatically returns to normal operation when horizontal and vertical sync return. This occurs when you move the computer's mouse or press a key on the keyboard.

	This system operates with a VESA DPMS					Note 2: This monitor is EPA ENERGY STAR®
	compliant video card installed in your computer.					compliant and NUTEK compliant when
	You use a software utility installed on your					used with a computer equipped with
	computer to set up this feature. See the table					VESA DPMS functionality. If your
	below for details.					computer system cannot support a display
	Table 4-4. Display Power Management Signaling (DPMS); 13.3”					power management function, you can
						purchase an optional DPMS software
	State	Normal	Power saving function EPA/NUTEK			program to enable the power saving
						function. Please contact Samsung or your
	Items	Operation	Stand-By	Suspend Mode	Power Off Mode	dealer for more information.
			Mode	Position A	Position B
	Horizontal Sync	Active	Inactive	Active	Inactive	Note 3: For energy conservation, turn your
	Vertical Sync	Active	Active	Inactive	Inactive	monitor OFF when it is not needed, or
						when leaving it unattended for long
	Video	Active	Blanked	Blanked	Blanked
						periods.
	Power			Amber	Amber
		Green	Amber	Blinking	Blinking	Note 4: Audio Part is operated separately by
	Indicator
				(0.5 sec)	(1 sec)	control button.
	Power	40 W (max.)
			Less than	Less than	Less than
	Consumption/hr	30 W
			5 W	5 W	5 W
	(13.3”)	(nominal)
	Power	45 W (max.)	Less than	Less than	Less than
	Consumption/hr	35 W
			5 W	5 W	5 W
	(15”)	(nominal)
	4-4					SyncMaster 33*TFT/53*TFT

5 Disassembly and Reassembly

This section of the service manual describes the disassembly and reassembly procedures for the SyncMaster 33*TFT/53*TFT monitors.

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

5-1 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.

5-1-1 Removing the Stand

5. Disconnect Power Cord and Signal Cable.

1.Carefully push the edge of the hinge cap with a ‘–’ screw driver until the opposite end of the hinge cap releases.

Figure 5-1

2. Remove 4 screws in the hinge area.

Figure 5-2

3.Push the stand to the left side to release the hinge.

Caution:Be careful. Signal cable and power cable are still attached to the monitor.

4.Lift the stand away from the monitor until Vesa Cover is completely visible. And pry it off the back of the monitor.

Figure 5-3

5-1-2 Main Body Disassembly

Figure 5-4

1.Remove the 4 screws on the Rear Cover. (Marked: )

2.Remove Rear Cover from the Front Cover.

3.Remove 6 screws on the Shield. (Marked: )

4.Disconnect Inverter wire, Function PCB wire and Interface wire.

5.Remove the Main PCB Assembly.

SyncMaster 33*TFT/53*TFT

5-1

5 Disassembly and Reassembly

6.Remove 4 screws on the Rear Panel Bracket. (15” : 6 screws)

Figure 5-5

7.Remove the Bracket Assembly from the Front Cover.

8.Remove 1 screw on the Power PCB.

9.Remove Function PCB from locking area of Function Knob.

Figure 5-6

10.Remove 4 screws on the Shield of Panel.

11.Remove the Shield.

12.Disconnect the jack between Panel and Inverter PCB.

13.Remove Rear Bracket.

Figure 5-7

14.Remove 2 screws between Rear Bracket and Inverter PCB.

15.Remove the Interface wire on the Rear Side of Panel.

5-1-3 Stand Disassembly

1.Stand the stand assembly with the base close to you.

Figure 5-8

5-2	SyncMaster 33*TFT/53*TFT