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Samsung SyncMaster S22A350H, Service Manual, Page: 2 / 39

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Contents

1. Precautions

1-1. Safety Precautions ......................................................................................................... 1-1

1-2. Servicing Precautions ..................................................................................................... 1-2

1-3. Static Electricity Precautions .......................................................................................... 1-2

1-4. Installation Precautions .................................................................................................. 1-3

2. Product specification

s

2-1. Feature & Specifications

 ................................................................................................. 2-1

2-2. Spec Comparison to the Old Models .............................................................................. 2-3

2-3. Accessories .................................................................................................................... 2-4

2-4. Accessories (Sold separately) ........................................................................................ 2-5

3. Disassembly and Assembly

3-1. Disassembly ................................................................................................................... 3-1

4. Troubleshooting

4-1. Troubleshooting .............................................................................................................. 4-1

4-2. When the Power Does Not Turn On ............................................................................... 4-2

4-3. When the screen is blank (Analog) ................................................................................. 4-4

4-4. When a blank screen is displayed (HDMI) ..................................................................... 4-7

4-5. Error Examples and Actions ......................................................................................... 4-10

4-6. Adjustment .................................................................................................................... 4-11

5. Wiring Diagram

5-1. Wiring Diagram - Main Board ......................................................................................... 5-1

5-2. Board Connection - Main Board ..................................................................................... 5-2

5-3. Connector Functions ...................................................................................................... 5-3

5-4. Cables ............................................................................................................................ 5-3

Summary of Contents for SyncMaster S22A350H

Page 1: ... L3S24HS L3S27HS Model S22A350H S23A350H S24A350H S27A350H SERVICE Manual TFT LCD Monitor Contens S22A350H S23A350H S24A350H S27A350H 1 Precautions 2 Product specifications 3 Disassembly and Reassemble 4 Troubleshooting 5 Wiring Diagram ...

Page 2: ...3 Accessories 2 4 2 4 Accessories Sold separately 2 5 3 Disassembly and Assembly 3 1 Disassembly 3 1 4 Troubleshooting 4 1 Troubleshooting 4 1 4 2 When the Power Does Not Turn On 4 2 4 3 When the screen is blank Analog 4 4 4 4 When a blank screen is displayed HDMI 4 7 4 5 Error Examples and Actions 4 10 4 6 Adjustment 4 11 5 Wiring Diagram 5 1 Wiring Diagram Main Board 5 1 5 2 Board Connection Mai...

Page 3: ...anual is a property of Samsung Electronics Co Ltd Any unauthorized use of Manual can be punished under applicable International and or domestic law 2010 Samsung Electronics Co Ltd All rights reserved Printed in Korea ...

Page 4: ...onitor do not use any metal tools except for the provided jig 3 Disassemble the monitor carefully as directed in the following procedures Description Photo Screws 1 Remove the stand body shown in the figure 2 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 figure Separate the sides of t...

Page 5: ...3 2 3 Disassembly and Assembly Description Photo Screws 5 Remove the main PCB from the SHIELD HOLDER 6 We get the PBA Reassembly procedures are in the reverse order of disassembly procedures ...

Page 6: ... American National Standards Institute ANSI C101 1 Leakage Current for Appliances and Underwriters Laboratories UL Publication UL1410 59 7 With the unit completely reassembled plug the AC line cord directly into a 120V AC outlet With the unit s AC switch 4 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...

Page 7: ...move the instrument s ground lead last 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 field effect transistors The following techniques will reduce the incidence of component damage caused by stat...

Page 8: ... it from being exposed 4 to moisture Otherwise it may cause a fire 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 fire or electric shock Keep the antenna far away from any high voltage cables and install it ...

Page 9: ...1 4 1 Precautions Memo ...

Page 10: ...30kHz 81kHz Automatic Vertical 56Hz 75Hz Display Colors 16 7 Million colors Maximum resolution Horizontal 1920 Pixels Vertical 1080 Pixels Input Signal Analog HDMI with HDCP Input Sync Signal Separate H V sync Composite H V Sync on Green Level TTL level Maximum Pixel Clock rate 164Mhz Active Display Horizontal Vertical 476 64 H x 268 11 V 509 76 H x 286 74 V AC power voltage Frequency AC 100V 240V...

Page 11: ...el Maximum Pixel Clock rate 164Mhz Active Display Horizontal Vertical 531 36 H x 298 891 V 597 6 H X 336 15 V AC power voltage Frequency AC 100V 240V 50Hz 60Hz Power Consumption Typical 27W Max 30W Typical 29W Max 32W Dimensions Set W X H X D 578 6 X 359 1 X 59 2 mm Without Stand 578 6 X 438 7 X 239 2 mm With Stand 654 0 X 405 6 X 60 3 mm Without Stand 654 0 X 483 0 X 249 2 mm With Stand Weight Se...

Page 12: ...MI with HDCP Analog HDMI with HDCP Response Time 2ms G to G 2ms G to G Viewing Angle 170 160 CR 10 170 160 CR 10 Brightness 250 cd m S22A350H S23A350H S24A350H 300 cd m S27A350H 250 cd m Contrast MEGA 1 DCR MEGA 1 DCR MagicBright 5 step 5 step Feature Magic Angle Image Size Magic Bright3 Magic Tune Eco Saving Win7 MagicAngle Image Size Magic Bright3 Picture Mode Magic Tune Magic ECO Magic Return W...

Page 13: ...Electronics Service center Warranty Card Not available in all locations BN68 01146D User s Guide Monitor Driver Natural Color Pro Software BN59 01128A Cleaning Cloth BN63 02368B D Sub 15 Pin Cable BN39 00244H Power Cord 3903 000382 Adapter S22A350H S23A350H S24A350H BN44 00394C BN44 00394A Adapter S27A350H BN44 00399A ...

Page 14: ...2 5 2 Product specifications 2 4 Accessories Sold separately Product Description Code No Remark DVI to HDMI Cable BN39 01353B Samsung Electronics Service center HDMI Cable BN39 00641A ...

Page 15: ...2 6 2 Product specifications Memo ...

Page 16: ...requency 60 Hz 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 When 5V is generated but a blank screen is displayed Main PCB Press the MENU button and hold down the 4 Enter Source button for more than five 5 seconds to return the monitor to factory mode ...

Page 17: ...rt and also check whether there is any abnormal output at any of the other output terminals Diagnostics CN902 IC601 IC602 Yes Check the connection status for the function assy Yes Check the circuits related to IC600 Check CN601 and the IC600 No No Is DC 5V measured at pins 3 5 of the IC600 Is DC 3 3V measured at pin 5 of IC600 when pin 4 is DC 5V Check the circuits related to IC602 No Yes Is DC 1 ...

Page 18: ...4 3 4 Troubleshooting 4 2 1 Circuit diagrams when the power does not turn on ...

Page 19: ...and their connections Check and replace the circuits related to X401 No Is X401 oscillating correctly Do the RGB inputs appear at R106 R110 and R113 Check the R106 R110 and R113 input terminals No Yes Check the circuits related to IC400 Check the circuits related to CN400 Check the 5V_Panel signal and the BL_EN signal No No No Do the Hsync and Vsync waveforms appear at pins 38 39 of IC400 respecti...

Page 20: ...4 5 4 Troubleshooting 4 3 1 When a blank screen is displayed Analog ...

Page 21: ...4 6 4 Troubleshooting 4 3 2 Waveforms when no screen is displayed Analog ...

Page 22: ...ainboard Diagnostics CN400 X401 IC400 Yes Check the signal cables and their connections Yes Check and replace the circuits related to X401 No Is X401 oscillating correctly Do the inputs appear at R300 to R307 Check the R300 to R307 input terminals No Yes Do output signals appear at pins 8 to 30 of CN400 Check the circuits related to CN400 No Yes Can DC 5V be measured at pins 1 2 and 3 of CN400 Che...

Page 23: ...4 8 4 Troubleshooting 4 4 1 Circuit diagrams when a blank screen is displayed HDMI ...

Page 24: ...4 9 4 Troubleshooting 4 4 2 Waveforms when a blank screen is displayed HDMI ...

Page 25: ...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 ...

Page 26: ...ON Basic Service Items to Perform after Replacing a Board 3 1 Check the PC color adjustment status 2 Input DDC input both of Analog and HDMI 3 Check whether the appropriate MCU code for the model is input 4 Hard power the monitor off after entering service mode and performing a reset DDC EDIT Data Input 4 1 Use when updating the AD board code 2 Download the WinDDC program DDC Input program and Hex...

Page 27: ... to move to other items Monitor On Time 13 Hr Panel Ch No 0 On Time 13 Hr Cycle 957 Auto Auto On Pixelshift Off Country English HotPlug Time 9 Scaler MCU Novatek NT68779 Version m S327H0GOA 0800 1 Checksun 4C97 Service Function Panel Information Micom Version Micom Checksum Select the Auto option Select the PixelShift option Country Select HotPlug Scaler Vender Monitor On Time 13 Hr Panel Ch No 0 ...

Page 28: ...glish HotPlug Time 9 Scaler MCU Novatek NT68779 Version m S327H0GOA 0800 1 Checksun 4C97 Service Function PixeShift Monitor On Time 13 Hr Panel Ch No 0 On Time 13 Hr Cycle 957 Auto Auto On Pixelshift Off Country English HotPlug Time 9 Scaler MCU Novatek NT68779 Version m S327H0GOA 0800 1 Checksun 4C97 Service Function PixeShift Monitor On Time 13 Hr Panel Ch No 0 On Time 13 Hr Cycle 957 Auto Auto ...

Page 29: ... Use the DDC Manager MTI 2050 version or later 1 Click the Open F5 icon 2 Select Two EDID 3 Select one DDC ile do it two times 4 Click O button 5 5 Enter the serial number and then press the Enter button When inputting one data select one EDID at steps 2 ...

Page 30: ... 15 4 Troubleshooting Inputting the MCU Data 1 Check the following options after open the Easywriter Option Setup ISP tool 1 LPT Port Offset 378 ISP Jig type Selection SAMSUNG Auto detect Confirm Change ...

Page 31: ...4 16 4 Troubleshooting 2 Click the Load File button 2 3 Select an MCU code file and then click the Open O button ...

Page 32: ...4 17 4 Troubleshooting 4 Click the Auto button 5 When programming and verification are complete hard power the monitor off and then on again ...

Page 33: ...4 18 4 Troubleshooting Inputting the Code HDCP 1 Run the service exe file 2 Click the HDCP button ...

Page 34: ...4 19 4 Troubleshooting 3 Click the Load HDCP button and select HDCPKEY_NOVATEK 4 Inputting the HDCP key is completed ...

Page 35: ...4 20 4 Troubleshooting Memo ...

Page 36: ...5 1 5 Wiring Diagram 5 Wiring Diagram 5 1 Wiring Diagram Main Board ...

Page 37: ...iring Diagram 5 2 Board Connection Main Board LVDS Connector Connect Panel RGB Connector Connect to PC HDMI Connector Connect to PC DC Jack Function Connector LED Connector CN400 CN902 CN402 CN600 CN300 CN100 ...

Page 38: ...mp of the panel When a problem occurs The Blank Screen error may occur CN402 Connects the function board When a problem occurs The No LED screen and Function failure errors may occur CN100 VGA signal input terminal When a problem occurs The No RGB output error may occur CN400 Transmits the LVDS signals from the main board to the panel When a problem occurs The Blank screen and No Power errors may ...

Page 39: ...5 4 5 Wiring Diagram Memo ...

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