Samsung 2220WM - SyncMaster - 22" LCD Monitor Service Manual
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Samsung 2220WM - SyncMaster - 22" LCD Monitor Service Manual

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See also: Owner's Manual
SERVICE
LCD Monitor
-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
LCD-Monitor
Model
2220WM
Manual
Fashion Feature
- WXGA Display (1680 x1050)
-Response Time: 5ms
-Connectivity: Analog (15P D-sub)
-Power Consumption: 22''W (52W)
-DPMS: under 1W (240Vac)
Samsung Electronics Co.,Ltd.
416, Maetan-3Dong, Yeongtong-Gu, Suwon City,
Gyeonggi-Do, Korea, 443-742
Printed in Korea
P/N :
URL :
http://itself.sec.samsung.co.kr/
1

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Summary of Contents for Samsung 2220WM - SyncMaster - 22" LCD Monitor

  • Page 1 - WXGA Display (1680 x1050) -Response Time: 5ms -Connectivity: Analog (15P D-sub) -Power Consumption: 22’’W (52W) -DPMS: under 1W (240Vac) Samsung Electronics Co.,Ltd. 416, Maetan-3Dong, Yeongtong-Gu, Suwon City, -This Service Manual is a property of Gyeonggi-Do, Korea, 443-742 Samsung Printed in Korea Electronics Co., Ltd.

  • Page 2: Table Of Contents

    Contents Precautions ……………………………………………………………………………………………………………………………………………… 1-1 Safety Precautions …………………………………………………………………………..……………………………………………… 1-2 Servicing Precautions ……………………………………………………………………………………………………………………... 1-3 Static Electricity Precautions ………………………………………………………………………………………………………………. 1-4 Installation Precautions …..………………………………………………………………………………………………………………… Product specifications ………………………………………………………………………………………………….…………………………… 2-1 Fashion Feature ………………………………………………………………………………………………………………………… 2-2 2220WM Specifications …………………………………………………………………………………………….………………………. 7 Alignments and Adjustments ………………………………………………………………………………………………………………………. 3-1 Required Equipment ………………………………………………………………………………………………………………………. 3-2 Automatic Color Adjustment ….
  • Page 3 9-3 Connecting the monitor ……………………………………………………………………………………………………………………… 9-4 Monitor Assembly …………………………………………………………………………………………………………………………….. 9-5 Attaching a Base …………………………………………………………………………………………………………………………….. 10. Disassembly and Reassembly …………………………………………………………………………………………………………………………… 10-1 Disassembly …………………………………………………………………………………………………………………………………… 10-2 Assembly Block ……………………………………………………………………………………………………………………………….. 11. PCB Diagram ……………………………………………………………………………………………………………………………………………… 11-1 Mian Board........................................12-2 Power Board........................................12. Circuit Descriptions ........................................12-1 Overall Block Structture .....................................

  • Page 4: Precautions

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

  • Page 5: Servicing Precautions

    Servicing Precautions An electrolytic capacitor installed with the wrong polarity might explode. WARNING: Before servicing units covered by this service manual, read and follow the Safety Caution: Precautions section of this manual. If unforeseen circumstances create conflict between the following servicing precautions Note: and any of the safety precautions, always follow the safety precautions.

  • Page 6: Installation Precautions

    1-4 Installation Precautions . For safety reasons, more than two people are required for carrying the product. 2. Keep the power cord away from any heat emitting devices, as a melted covering may cause fire or electric shock. 3. Do not place the product in areas with poor ventilation such as a bookshelf or closet.

  • Page 7: Product Specifications

    2 Product Specifications 2-1 Fashion Feature WXGA Display (1680 x 1050) - Black Color Variation 2-2 Specifications Features Specifications Maximum resolution 1680(H)*1050(V) Back light system 4 CCFL (top & bottom edge side) Actual Resolution display WSXGA+(1680x1050) Pixel pitch 0.282(H) x 0.282(V) Display area 473.76 ( H ) x 296.1 ( V ) , 22”...

  • Page 8: Alignments And Adjustments

    3 Alignments and Adjustments This section of the service manual explains how to use the DDC Manager JIG. This function is needed for AD board change and program memory (U105) change. 3-1 Required Equipment The following equipment is necessary for adjusting the monitor: - Computer with Windows 95, Windows 98, Windows 2000, Windows XP, or Windows NT.

  • Page 9: Edid Table

    3-4 EDID table Byte(Hex) Field Name and Comments Description EDID 00~07h Head Information 00,FF,FF,FF,FF,FF,FF,00 08~09h ID Manufacturer Name 4C,2D 0A~0Bh Product ID Code 031F 1F,03 0C~0Fh Last 5 Digits of Serial Number XXXXXXXXXX Week of Manufacture Year of Manufacture 2007 EDID Version Number EDID Revision Number Analog Signal Level...
  • Page 10 640 x 480 @ 67Hz 640 x 480 @ 72Hz 640 x 480 @ 75Hz 800 x 600 @ 56Hz 800 x 600 @ 60Hz 800 x 600 @ 72Hz 800 x 600 @ 75Hz 832 x 624 @ 75Hz 1024 x 768 @ 87Hz(I) (N/A) Established Timing II 1024 x 768 @ 60Hz...
  • Page 11 Byte(Hex) Field Name and Comments Description EDID 00~07h Head Information 00,FF,FF,FF,FF,FF,FF,00 08~09h ID Manufacturer Name 4C,2D 0A~0Bh Product ID Code 0320 20,03 0C~0Fh Last 5 Digits of Serial Number XXXXXXXXXX Week of Manufacture Year of Manufacture 2007 EDID Version Number EDID Revision Number Analog Signal Level 0.700, 0.000 (0.700Vp-p)
  • Page 12 832 x 624 @ 75Hz 1024 x 768 @ 87Hz(I) (N/A) 1024 x 768 @ 60Hz 1024 x 768 @ 70Hz 1024 x 768 @ 75Hz 1280 x 1024 @ 75Hz 1152 x 870 @ 75Hz 800 x 600 @ 85Hz (N/A) 1024 x 768 @ 85Hz (N/A) 1280 x 1024 @ 60Hz (N/A) Manufacturers Reserved Timings...

  • Page 13: How To Execute Ddc

    3-5 How to execute DDC 1. Install Analog DVI EDID Tool Program 2. Click the Analog DVI EDID Tool icon. 3. Then Select the model which you want to write EDID. 4. Select VGA EDID or DVI EDID: Click ｀Setting＇ --- ｀Config File＇...
  • Page 14 5. Write EDID: Select “File”- “Auto Write” to enable EDID Writing. It will auto write when you enter a S/N which i Successful EDID written when it shows‘PASS’ Logo...

  • Page 15: How To Execute Mcu Code

    3-6 How to execute MCU Code 1. Set the options. -. Manufacture : MSTAR -. Device Type : TSUM16_ROM128K_ext_flash -. Communication Port : DSUB15 (Analog) -. External Memory: PM25LV010E 5. If Program and Verify is OK, turn off the hard power and than turn on again.

  • Page 16: Troubleshooting

    4 Troubleshooting 4-1 Common Acknowledge If you change the interface board, be sure that the U104 and U105 these two components also changed to the new I/F board because there was program inside. If not, please re-write EDID or upload firmware into Flash memory via VGA Cable.

  • Page 17: No Picture (Vga Mode)

    4-2 No Picture (VGA Mode)

  • Page 18: No Picture (Dvi Mode)

    4-3 No Picture (DVI Mode)

  • Page 19: No Power

    4-4 No Power...

  • Page 20: Exploded View And Parts List

    5. Exploded View & Part List 5. Exploded View & Part List 5-1. LS22WJWKBJUXAA Exploded View...
  • Page 21 5. Exploded View & Part List 5-1-1. LS22WJWKBJUXAA Parts List Location No. Code No. Description & Specification Q’ty SA/SNA Remark 7140300119 BN82-00278A A/S ASSY-COVER FRONT;714030011900R 7140500110 BN82-00275A A/S ASSY-COVER REAR;714050011000R 7911513005 BN81-01270A A/S-PCBA I/F;791151300510R,-,-,-,-,-,- 7911514006 BN81-01275A A/S-PCBA P/I;791151400610R,-,-,-,-,-,- M0215 BN07-00427A LCD-PANEL;M220Z1-L03 M0561 BN81-01095A...

  • Page 22: Parts List

    5. Exploded View & Part List 5-2. LS22WJWKBJUXAA Parts List Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark BRIGHTNESS 300CD/M2 CONTRAST RATIO LS22WJWKBJUXAA 1000: M0215 BN07-00427A LCD-PANEL;M220Z1-L03 A/S-PWR CORD;BLK 6FT UL/CSA,10A/ M0560 BN81-00549A 125V,453 A/S-PCBA,KEYPAD BOARD;LE1969,KEY M0561 BN81-01095A FUNCTIO A/S-PCBA EARPHONE;790240400000R,-,-,-...

  • Page 23: Block Diagram

    6 Block Diagram 6-1 Power Tree 6-2 Main Board Part TSUM16AWK-LF-1 Display Response LVDS Processing Time Panel (PC)ANALOG Engine Enhancement Interface Single Interface SDRAM Engine HSYNC Clock Generator Function Key 14.318MH 24C04 Flash EEPROM 1.8V 3.3V Regulator Regulator IP Board Regulator...

  • Page 24: Ip Board Part (Inverter Part)

    6-3 IP Board Part (power Part) 6-4 IP Board Part (Inverter Part)

  • Page 25: Wiring Diagram

    7 Wiring Diagram...

  • Page 26: Schematic Diagrams

    8 Schematic Diagram 8- 1 DC-DC 8- 2 Input...

  • Page 27: Tsumu58Whj

    8- 3 TSUMU58WHJ 8- 4 Power...

  • Page 28: Inverter

    8- 5 Inverter 8- 6 Keypad...

  • Page 29: Audio

    8- 7 Audio 8- 8 Ear Phone...

  • Page 30: Operating Instructions And Installation

    9 Operating Instructions and Installation 9-1 Front 3. Volume button 1. Menu button When OSD is not on the screen, push the button Opens the OSD menu. Also use to exit the OSD menu or return to the previous menu. 2&3.

  • Page 31: Rear

    9-2 Rear 1. Power port Connect the power cord for your monitor to the power port on the back of the monitor. 2. D-sub 15-pin port Connect the signal cable to the 15-pin, D-sub connector on the back of your monitor. 3.

  • Page 32: Connecting The Monitor

    9-3 Connecting the Monitor...

  • Page 33: Monitor Assembly

    9-4 Monitor Assembly...

  • Page 34: Attaching A Base

    9-5 Attaching a Base - This monitor accepts a 100mm x 100mm VESA-compliant mounting interface pad. A. Monitor B. Mounting Interface Pad 1. Turn off your monitor and unplug its power cord. 2. Lay the LCD monitor face-down on a flat surface with a cushion beneath it to protect the screen. 3.

  • Page 35: Disassembly And Reassembly

    10 Disassembly and Reassembly 10-1 Disassembly Block LE 2294 LCD Monitor BASE*1 RUBBER FOOT*4 ASSY BASE*1 SCREW,MINUS,M4*8,Zn* SCREW M4*10, *3 STAND_BACK*1 HINGE *1 SCREW M4*10 *3 ASSY STAND*1 STAND_FRONT*1 ASSY BACK COVER*1 BACK COVER*1 CHASSIS *1 BKT-VESA *4 MYLAR TRANSPARENT*2 Power Board *1 SHIELDING*1 ASSY...
  • Page 36 1.unscrew the manual scerw and remove the base 2.unscrew the stand screws and remove the stand 3.Lift the back cover and use jig remove the lamp shielding 4.Disconnect lamp wire and earphone wire...
  • Page 37 5.Tear the adhesive tape and disconnect keypad wire 6.Disconnect the speaker and LVDS wire 7.Remove chassis assembly and lift up the panel...
  • Page 38 10-2 Reassembly Block COVER,FRONT BUTTON,LE1970,ROHS KeyPAD PCBA*1 LENS,LE1970 ROHS CHASSIS *1 ASSY BEZEL*1 MYLAR TRANSPARENT*2 MYLAR BLACK*2 LCP 22 MT220WW01-V0- G1 (INNOLUX)& LCP 22 Power Board *1 N220Z1-L01(A)(CMO)& SCREW M3*6, *4 ASSY CHASSIS ASSY PANEL*1 LCP 22 MT220WW01-V2- SCREW M4*6, *1 G1 (INNOLUX) PCBA I/F BOARD *1 CABLE 30 PIN FFC...

  • Page 39: Pcb Diagram

    11 PCB Diagram 11-1 Main Board 11-1-1 Main Board Top Layer 11-1-2 Main Board Bottom Layer...

  • Page 40: Power Board

    11–2 Power Board 11-2-1 Power Board TOP Layer 11-2-2 Power Board BOTTOM Layer...

  • Page 41: Circuit Descriptions

    12 Circuit Descriptions 12-1 Overall Block Structure 12-1-1 Power Tree 1. When the AD board is in DPMS state: 1.1 The IP has been designed so that it operates with a power consumption of less than 0.8W of. 1.2 The Scaler consumes power up to 37mA 1.3 The power to the panel is switched off 2.
  • Page 42 12-1-2 Main board Parts TSUM16AWK-LF-1 Display Response LVDS Processing Time Panel (PC)ANALOG Engine Enhancement Interface Single Interface SDRAM Engine HSYNC Clock Generator Function Key 14.318MH 24C04 Flash EEPROM 1.8V 3.3V Regulator Regulator IP Board Regulator 1. Inverter: A conversion device that converts DC rated voltage/current to high ones necessary for the panel lamp.

  • Page 43: Ip Board Part(Power) Schematic Diagrams

    12-2 IP Board Part(Power) Schematic Diagrams Power Switching Mode Power Supply 1.1 AC Current Input Circuit P801 is a connector for connecting AC Power. F801 is a fuse to protect all the circuit. AC input voltage is from 90v to 264V. R801 and R802 joined between two inputting main circuit to prevent man from shock.
  • Page 44 Pin R of IC803 is supplied 2.5-v stable voltage. It connects to 5V and 14V output through R822, R823 and R824. R822, R823 and R824 are output sampling resistor. When the sampling voltage more than 2.5V or less than 2.5V, current of FB IC802 will change, this can change the voltage from T801. 12-3 IP Board Part(Inverter Part) Inverter Circuit 1.

  • Page 45: Reference Information

    13 Reference Information 13-1 Technical Terms -TFT-LCD -FINE The "Fine" adjustment is used to adjust visibility by Thin film Transistor Liquid Crystal Display controlling phase difference. -ADC(Analog to Digital Converter) This is a circuit that converts from analog signal to -COARSE digital signals.
  • Page 46 -Vertical Frequency The screen must be redrawn several times per sec- ond in order to create and display an image for the user. The frequency of this repetition per second is called Vertical Frequency or Refresh Rate. Unit: Hz Example: If the same light repeats itself 60 times per second, this is regarded as 60 Hz.

  • Page 47: Pin Assignments

    13-2 Pin Assignments Sync 15-Pin D-Sub Signal Cable Connector Type Separate Sync-on-green Pin No. Green Green + H/V Sync Blue Blue DDC Return(GND) DDC Return(GND) GND-R GND-R GND-G GND-G GND-B GND-B Cable Detect Cable Detect Bi-Dr Data (SDA) Bi-Dr Data (SDA) H-Sync Not Used V-Sync...

  • Page 48: Timing Chart

    13-3 Timing Chart This section of the service manual describes the timing that the computer industry recognizes as standard for computer- generated video signals. Through D-SUB connectors, this unit can support FH= 30~81 KHz, Fv=56~75Hz and WXGA+ display modes as below: Table 1.

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