Follow these safety, servicing and ESD precautions to prevent damage and to protect against potential hazards such as
electrical shock.
1-1-1. Warnings
For continued safety, do not attempt to modify the circuit board.1.
Disconnect the AC power and DC power jack before servicing.2.
1-1-2. Servicing the LCD Monitor
When servicing the LCD Monitor, Disconnect the AC line cord from the AC outlet.1.
It is essential that service technicians have an accurate voltage meter available at all times. Check the calibration of this 2.
meter periodically.
1-1-3. Fire and Shock Hazard
Before returning the monitor to the user, perform the following safety checks:
Inspect each lead dress to make certain that the leads are not pinched or that hardware is not lodged between the 1.
chassis and other metal parts in the monitor.
Inspect all protective devices such as nonmetallic control knobs, insulating materials, cabinet backs, adjustment and 2.
compartment covers or shields, isolation resistorcapacitor networks, mechanical insulators, etc.
Leakage Current Hot Check (Figure 1-1):3.
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).
(READING SHOULD)
NOT BE ABOVE 0.5mA
DEVICE
UNDER
TEST
2-WIRE CORD
*ALSO TEST WITH
PLUG REVERSED
(USING AC ADAPTER
PLUG AS REQUIRED)
TEST ALL
EXPOSED METAL
SURFACES
LEAKAGE
CURRENT
TESTER
EARTH
GROUND
Figure 1-1. Leakage Current Test Circuit
With the unit completely reassembled, plug the AC line cord directly into a 120V AC outlet. With the unit’s AC switch rst 4.
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
Page 5
1-2
1. Precautions
1-1-4. Product Safety Notices
Some electrical and mechanical parts have special safetyrelated 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 identied 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, re and/or other hazards. Product safety is under review continuously and new instructions are issued whenever
appropriate.
1-2. Servicing Precautions
An electrolytic capacitor installed with the wrong polarity might explode.
Before servicing units covered by this service manual, read and follow the Safety
Precautions section of this manual.
Note: If unforeseen circumstances create conict between the following servicing precautions and any of the safety
precautions, always follow the safety precautions.
1-2-1 General Servicing Precautions
Always unplug the unit’s AC power cord from the AC power source and disconnect the DC Power Jack before attempting 1.
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.
Some components are raised above the printed circuit board for safety. An insulation tube or tape is sometimes used. 2.
The internal wiring is sometimes clamped to prevent contact with thermally hot components. Reinstall all such elements
to their original position.
After servicing, always check that the screws, components and wiring have been correctly reinstalled. Make sure that the 3.
area around the serviced part has not been damaged.
Check the insulation between the blades of the AC plug and accessible conductive parts (examples: metal panels, input 4.
terminals and earphone jacks).
Insulation Checking Procedure: Disconnect the power cord from the AC source and turn the power switch ON. 5.
Connect an insulation resistance meter (500 V) to theblades 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.
Always connect a test instrument’s ground lead to the instrument chassis ground before connecting the positive lead; 6.
always remove the instrument’s ground lead last.
Page 6
1-3
1. Precautions
1-3. Static Electricity 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 are integrated circuits and some eld-effect
transistors. The following techniques will reduce the incidence of component damage caused by static electricity.
Immediately before handling any semiconductor components or assemblies, drain the electrostatic charge from your 1.
body by touching a known earth ground. Alternatively, wear a discharging wrist-strap device. To avoid a shock hazard, be
sure to remove the wrist strap before applying power to the monitor.
After removing an ESD-equipped assembly, place it on a conductive surface such as aluminum foil to prevent 2.
accumulation of an electrostatic charge.
Do not use freon-propelled chemicals. These can generate electrical charges sufcient to damage ESDs.3.
Use only a grounded-tip soldering iron to solder or desolder ESDs.4.
Use only an anti-static solder removal device. Some solder removal devices not classied as “anti-static” can generate 5.
electrical charges sufcient to damage ESDs.
Do not remove a replacement ESD from its protective package until you are ready to install it. Most replacement ESDs 6.
are packaged with leads that are electrically shorted together by conductive foam, aluminum foil or other conductive
materials.
Immediately before removing the protective material from the leads of a replacement ESD, touch the protective material 7.
to the chassis or circuit assembly into which the device will be installed.
Be sure no power is applied to the chassis or circuit and observe all other safety
precautions.
Minimize body motions when handling unpackaged replacement ESDs. Motions such as brushing clothes together, 8.
or lifting your foot from a carpeted oor can generate enough static electricity to damage an ESD.
1-4. Installation Precautions
For safety reasons, more than a people are required for carrying the product.1.
Keep the power cord away from any heat emitting devices, as a melted covering may cause re or electric shock.2.
Do not place the product in areas with poor ventilation such as a bookshelf or closet. The increased internal temperature 3.
may cause re.
Bend the external antenna cable when connecting it to the product. This is a measure to protect it from being exposed to 4.
moisture. Otherwise, it may cause a re or electric shock.
Make sure to turn the power off and unplug the power cord from the outlet before repositioning the product. Also check 5.
the antenna cable or the external connectors if they are fully unplugged. Damage to the cord may cause re or electric
shock.
Keep the antenna far away from any high-voltage cables and install it rmly. Contact with the highvoltage cable or the 6.
antenna falling over may cause re or electric shock.
When installing the product, leave enough space (10cm) between the product and the wall for ventilation purposes. 7.
A rise in temperature within the product may cause re.
Note: Designs and specications are subject to change without prior notice.
2-1
Page 8
2-2
2. Product specications
2-2. Spec Comparison to the Old Models
Model
Design
Resolution
InputAnalogAnalog
Response Time5ms5ms
Viewing Angle90/65(CR>10)90/65(CR>10)
Brightness200 cd/m²200 cd/m²
Contrast600:1600:1
S19A100N / S22A100N
S22A100N : 1920 x 1080
[SA100]
S19A10N : 1366 x 768
[SA10]
S19A10N
1366 x 768
Feature
What is MagicTune? ሪ
MagicTune is a software program that helps with monitor adjustments by providing comprehensive descriptions of
monitor functions and easy-to-understand guidelines.
Users can adjust the product with the mouse and the keyboard without using the operating buttons of the product.
One key operation
Magic Tune
One key operation
Magic Tune
Page 9
2-3
2. Product specications
2-3. Accessories
ProductDescriptionCode. NoRemark
Installation ManualBN68-03796A
Warranty Card
(Not available in all locations)
Power Cord3903-000382
AdapterBN44-00394A
D-Sub CableBN39-00244H
BN68-00226R
Samsung Electronics
Service center
Page 10
3. Disassembly and Assembly
This section describes the disassembly and reassembly sequences for this monitor.
As this monitor has parts that are sensitive to static electricity, be careful when
handling them.
3-1. Disassembly
Turn the monitor off before beginning the disassembly process.1.
When disassembling the monitor, do not use any metal tools except for the 2.
provided jig.
Disassemble the monitor carefully as directed in the following procedures.3.
Description PhotoScrews
1. Turn the monitor over and insert your hands into
the top of the monitor at the center and separate
the front cover in the direction of the arrow as
shown in the gure.
3. Disassembly and Assembly
2. Turn the monitor over again to remove the back
cover.
3. Remove the LVDS, LAMP wire, FUNCTION
cable, and then remove the SHIELD-COVER.
3-1
Page 11
3. Disassembly and Assembly
Description PhotoScrews
4. Remove the LCD panel.
5. Remove the two screws shown in the gure and
remove the Bracket support.
6. Remove the main PCB from the Shield Cover.
Reassembly procedures are in the reverse order of disassembly procedures. N
3-2
Page 12
4. Troubleshooting
4. Troubleshooting
4-1. Troubleshooting
Set custom mode as follows before beginning a repair.1.
S22A100N
Resolution: 1920 X 1080 -
S19A100N
Resolution: 1366 X 768 -
If the screen is blank, check whether the power cord is connected correctly.2.
The circuits to check:3.
When the raster does not appear: The Function PCB, Main PCB, Adapter -
When 5V is generated but a blank screen is displayed: Main PCB -
When 5V is not generated: Adapter -
“Press the MENU button and hold down the, “4. (Enter, Source)” button for more than ve (5) seconds to return the monitor to
factory mode.
4-1
Page 13
4-2
4. Troubleshooting
4-2. When the Power Does Not Turn On
Symptom
Major
checkpoints
When turning on the Power button after connecting the power cable, the LED at the front of the monitor does not operate.
Check the IC601 power fuse and the adapter. -
Check the connections for the CN600 and the Main board inside the monitor. -
Check the Main board power part and also check whether there is any abnormal output at any of the other output terminals.
IC601
Diagnostics
Is DC 5V measured at pins 4, 5 of
the CN600 connector when pins 1, 2, 3
Is DC 3.3V measured at pin 5 of
IC601 when pin 4 is DC 5V?
Check and replace the Main board.
CautionMake sure to disconnect the power before working on the Main board.
CN600
are 0V?
Yes
Yes
Yes
Check the connection status for
No
No
the function assy.
Replace the Adapter.
Check the circuits related to
IC601.
Page 14
4-3
4. Troubleshooting
4-2-1. Circuit diagrams when the power does not turn on
Page 15
4-4
4. Troubleshooting
4-3. When the screen is blank
SymptomEven though the LED power turns on, the screen is blank when connecting the VGA cable. -
Major
checkpoints
Check the D-sub cable connections. -
Check whether the LVDS cable is connected correctly to the panel. -
Check whether the lamp connector of the panel is connected correctly to the Main board. -
CN400
IC601
IC400
X401
R107 ~ R112
CN600
Diagnostics
Check the signal cables and their
connections.
Yes
1 Is X401 oscillating correctly?
Yes
Do the RGB inputs appear at
R107~R112?
Yes
Do the 2 Hsync and 3 Vsync
waveforms appear at pins 38, 39 of
IC400, respectively?
Yes
Do output signals appear at pins 13,14,
16,17,19,20,22,23,25,26 of CN400?
Yes
Is DC 5V measured at pins 1 ~ 5
of the CN400?
Yes
No
No
No
No
No
Check and replace the circuits
related to X401.
Check the R107~R112 input
terminals.
Check the circuits related to
IC400.
Check the circuits related to
CN400.
Check the +5V_Panel signal
and the BL_EN signal.
Check and replace the panel.
CautionMake sure to disconnect the power before working on the Main board.
Page 16
4-5
4. Troubleshooting
4-3-1. When a blank screen is displayed
Page 17
4-6
4. Troubleshooting
4-3-2. Waveforms when no screen is displayed
1
3
2
Page 18
4-7
4. Troubleshooting
4-4. Error Examples and Actions
Error AppearanceSymptoms and ActionsRemarks
Symptom: A full white screen is displayed regardless
of the signals when turning on the monitor.
Cause: This error occurs when only lamp power is
supplied and the video signals are not input to the
panel due to an LVDS cable connection error.
Action: Replace the LVDS cable or connect the cable
correctly so that the video signals can be supplied to
the panel.
A Full White pattern is a feature of •
a TN panel when no video signals
are supplied.
Page 19
4-8
4. Troubleshooting
4-5. Adjustment
4-5-1. Changing the Service Menu Settings
Precautions when conguring the service menu settings
Check that the equipment used for conguring the settings is working normally.1.
Ensure you have ample space to disassemble the set.2.
Prepare a cushioned surface on which to put the set to be disassembled.3.
Entering the Service Mode
Entering the mode:
MenuBrightness 0Contrast 0Press and hold the Enter key for 5 seconds
Exiting the mode:
Turn the power offTurn the power on
Important Checklist after Replacing the Main PBA
Check the screen color settings on the PC.1.
Enter (both the analog and digital) DDC data.2.
Check that the MCU code appropriate for the model has been entered.3.
Enter the service mode and reset the system. Next, power off the monitor.4.
DDC EDIT Data Input
Use when updating the AD board code.1.
Download the WinDDC program, DDC Input program, and Hex and DDC les appropriate to the model through the 2.
Quality Control department of Samsung Electronics. Install the jig and input the data, as shown in the gure.
Monitor needing
adjustment
MTI-2031
Parallel
Connector
(25P Cable)
DDC Manger
Connect Monitor
(Signal Cable)
Page 20
4-9
4. Troubleshooting
4-5-2. Service Function
Checking the Code Version
Enter the service mode, and check the MCU code version and checksum.1.
Entering the Service Mode2.
Adjust the brightness and contrast ratio to 0. -
Press and hold the Enter button for about 5 seconds. -
The SVC Function screen will be displayed. -
To close SVC Function, turn the power off. -
Safe Mode3.
If the input signal is higher than the frequency supported by the product, the safe mode will turn the graphics card setting to recommended mode for about 1 minute.
Service Function
Monitor On Time : 0 Hr
Panel Ch. No. : 0
On Time : 0 Hr
Cycle : 10
Panel Information
Auto Auto : On
Pixelshift : Off
Country : English
Scaler-MCU : Novatek NT68650
Version : m-S119N0GFa-0900.0
Checksun : FE95
Select the Auto option
Select the PixelShift option.
Country
Scaler Vender
Micom Version
Micom Checksum
Page 21
4-10
4. Troubleshooting
Service Mode (Overview)
Press ▲ to move to another item.1.
Service Function
Monitor On Time : 0 Hr
Panel Ch. No. : 0
On Time : 0 Hr
Cycle : 10
Auto Auto : On
Pixelshift : Off
Country : English
Country
Scaler-MCU : Novatek NT68650
Version : m-S119N0GFa-0900.0
Checksun : FE95
Service Function
Monitor On Time : 0 Hr
Panel Ch. No. : 0
On Time : 0 Hr
Cycle : 10
Auto Auto : On
Pixelshift : Off
PixeShift
Country : English
Scaler-MCU : Novatek NT68650
Version : m-S119N0GFa-0900.0
Checksun : FE95
Press ▼ to change the setting of an item to On or Off.2.
Service Function
Monitor On Time : 0 Hr
Panel Ch. No. : 0
On Time : 0 Hr
Cycle : 10
Auto Auto : On
Pixelshift : On
PixeShift
Country : English
Scaler-MCU : Novatek NT68650
Version : m-S119N0GFa-0900.0
Checksun : FE95
Monitor On Time : 0 Hr
Panel Ch. No. : 0
On Time : 0 Hr
Cycle : 10
Auto Auto : On
Pixelshift : Off
PixeShift
Country : English
Service Function
Scaler-MCU : Novatek NT68650
Version : m-S119N0GFa-0900.0
Checksun : FE95
Page 22
4-11
4. Troubleshooting
After Replacing the Panel
After replacing the panel, move to [Panel] and press and hold the Menu button for about 5 seconds.
Ch. No. (channel number) will increase by 1 each time the Menu button is pressed. Keep pressing the button until both
On Time and Cycle change to 0.
Service Function
Monitor On Time : 0 Hr
Panel Ch. No. : 0
Panel Ch. No.
On Time : 0 Hr
Cycle : 10
Auto Auto : On
Pixelshift : Off
Country : English
Scaler-MCU : Novatek NT68650
Version : m-S119N0GFa-0900.0
Checksun : FE95
This number is incremented by 1.
Page 23
4-12
4. Troubleshooting
4-5-3. Inputting the DDC Data
Use the DDC Manager MTI-2050 version or later.
Click the Open [F5] icon.1.
Select a port.2.
Open a DDC le.3.
Select a date and click the OK [Save] button.4.
Click the Next [OK] button.5.
1
2
3
4
5
Enter the serial number and then press the Enter button.6.
LCB22US
6
When inputting digital data after inputting analog data, repeat steps 2 to 5. N
Page 24
4-13
4. Troubleshooting
4-5-4. Inputting the MCU Data
Check the following options after open the “Easywriter”1.
Option: Setup ISP tool -
LPT Port Offset: 378 -
ISP Jig type Selection: SAMSUNG -
Auto detect -
Conrm Change -
1
Page 25
4-14
4. Troubleshooting
Click the Load File button.2.
2
Select an MCU code le, and then click the Open[O] button.3.
Page 26
4-15
4. Troubleshooting
Click the Auto button.4.
When programming and verication are complete, hard power the monitor off and then on again.5.
Page 27
5. Wiring Diagram
5-1. Wiring Diagram - Main Board
5. Wiring Diagram
5-1
Page 28
5-2
5. Wiring Diagram
No.BlockRole DescriptionRemarks
1Scaler IC400
FLASH MEMORY
2
3
4
IC401
Regulator
IC601
EEPROM
IC100
The ADC, TMDS, Scaling and Controller are integrated on a single
chip.
Stores the rmware for the Scaler. The information can be updated.W25X40BVSSIG
The IC for a stable DC power supply.S-1172B33-U5T1G
The IC for storing DDC.AT24C02BN-SH-T
SE1059LMHL-NT
Page 29
5-3
5. Wiring Diagram
5-2. Board Connection
LVDS Connector
(Connect Panel)
CN400
IC400
RGB Connector
(Connect to PC)
Page 30
5. Wiring Diagram
5-3. Connector Functions
ConnectorFunctions
CN600Supplies 14V from the adapter to the main board and transmits the PWM output from the
main board to the LED driver.
When a problem occurs: The No Power and Blank Screen errors may occur. N
CN801Transmits the lamp current (6mA ~ 7mA) generated in the inverter to the lamp of the panel.
When a problem occurs: The Blank Screen error may occur. N
CN100VGA signal input terminal.
When a problem occurs: The No RGB output error may occur. N
CN400/CN401Transmits the LVDS signals from the main board to the panel.
When a problem occurs: The Blank screen and No Power errors may occur. N