Samsung 305TPLUS user manual

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LCD-Monitor
Chassis LHU30BS
Model 305TPLUS
Manual
SERVICE
LCD Monitor
Fashion Feature
- Back Side cable management
- Silm / Narrow Design
- PCB: 2 Layer, 150mm x 100mm
- Connectivity: DVI-D, USB 2.0 (1up, 4down)
- Power consumption: 130W
- Built in power supply

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Samsung Electronics Co.,Ltd. -This Service Manual is a property of Samsung 416, Maetan-3Dong, Yeongtong-Gu, Suwon City, Electronics Co., Ltd. Gyeonggi-Do, Korea, 443-742 Any unauthorized use of Manual can be punished Printed in Korea under applicable International and/or domestic P/N : BN82-00169A-01 law. URL : http://itself.sec.samsung.co.kr/

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3 Alignments and Adjustments 3 Alignments and Adjustments This section of the service manual explains how to use the RS232 JIG. This function is needed for AD board change and program memory (IC200) change. 3-1 Required Equipment The following equipment is necessary for adjusting the monitor:  Computer with Windows 95, Windows 98, or Windows NT.  MTI-2055 DDC MANAGER JIG 3-2 DDC EDID Data Input 1. Input DDC EDID data when replacing AD PCB. 2. Receive/Download the proper DDC file for the model

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3 Alignments and Adjustments 3-4 EDID Installation with Dos Program 1.Execute "DDC21.exe"± 2.Click "LOAD FILE"± 3.File Name "305T.DDC" 4. Click "WRITE EEPROM"± Confirm the "OK" Sign Error Massage: Check the Signal Cable or Interface Board 3-2

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3 Alignments and Adjustments 3-5 EDID Installation with Windows Program 1. Execute "WinDDC.exe" 2. Click "Sys Config"± Select "Station : Write station". Check "Serial No and Week : Don't change"± Click "Save"± 3. Click "Open" icon. Select "Connected Port #1" and Next "OK". * File Name - 305T.DDC Press enter key on your keyboard. 4. Confirm the "DDC OK". - After Replacing the Main Board -EDID Installation (Analog and Digital) -Factory Reset(Using Power key) During Power off, press Power key for

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3 Alignments and Adjustments Memo 3-4

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7 Block Diagrams 7 Block Diagram 7-1 Block Diagram (Main) 7-1

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7 Block Diagrams 7-2 Block Diagram (SMPS) 7-2

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13 Circuit Descriptions 13 Circuit Descriptions 13-1 BLOCK discription (MAIN) 13-1

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13 Circuit Descriptions No BLOCK DESCRIPTION NAME WT61P4 1 MICOM IC-MICROCONTROLLER,PLCC,44P,16Bit USB2504 2 USB IC-USC, USB2504,8Bit,TQFP,64P FET-SILICON, SI4435DY,P,-30V,+-8.0A, 3 DC/DC SI4435 0.014ohm,2.5W,SO-8 CN_DSUB_24_3R_G2, CONNECTOR-DVI, 4 DVI-D INPUT CONNECTOR-DVI 24P,3R,FEMALE,ANGLE,AUF JACK_USB_08_G4, JACK-USB, 4P/2C,AUF, 5 USB_DN USB PORT BLK,ANGLE,A TYPE JACK_USB_04_G2, JACK-USB, 4P/1C,AU,IVR, USB_UP 6 USB PORT ANGLE,B TYPE 7 SIGNAL CN_SMD_S_030, CONNECTOR-HEADER, LVDS CONNECTOR

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13 Circuit Descriptions 13-2 BLOCK discription (SMPS) 13-3

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13 Circuit Descriptions No BLOCK DESCRIPTION NAME LX801s 1 EMI Filter Coil Line filter FP801S 2 Inrush current For continued protection Power Factor Correction (PFC) allows power distribution to 3 PFC section PFC Circuit operate at its maximum efficiency 4 M-power Multiple-chip power Device F9222L Standby power is the power consumed by an appliance during 5 Standby power STD 6V the lowest possible electricity consuming mode Rectifier & Rectification is the conversion of alternating current (AC)

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11 Disassembly and Reassembly 11 Disassembly and Reassembly This section of the service manual describes the disassembly and reassembly procedures for the 305TLCD monitor. WARNING: This monitor contains electrostatically sensitive devices. Use caution when handling these components. 11-1 Disassembly Cautions: 1. Disconnect the monitor from the power source before disassembly. Description Picture Description 1. Place monitor face down on cushioned table. Remove 4 screws and lift up the Stand ass

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11 Disassembly and Reassembly Description Picture Description 3. Disconnect cables and remove the inverter power and function cable 4. Remove 1screws from the Shield. 5. Remove 4screws from the Shield between LCD_psanel and Shield 6. Disconnect cables LVDS and Signal from Panel control board 11-2

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11 Disassembly and Reassembly Description Picture Description 7. Remove 2screws from DVI input connector 8. Up and down the chassis ass'y 9. Remove 2 screw on the main board 10.Remove 3 screws on the SMPS board 11-3

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11 Disassembly and Reassembly Description Picture Description 11.Disconnect cables LVDS and Signal and Power from Main board 11-3 Reassembly Reassembly procedures are in the reverse order of disassembly procedures. 11-4

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6 Electrical Parts List 6 Electrical Parts List You can search for updated part codes through ITSELF web site. URL : http://itself.sec.samsung.co.kr/ 6-1. LS30HUXCB/XSF Parts List Level Loc. No. Code No. Description & Specification Q'ty SA/SNA LS30HUXCB/XSF 305TPLUS,WQA1/S30A0-LHU,30,LCD-MO,CHINA 0.1 M0001 BN90-01014G ASSY COVER FRONT;LS30HUX_305T PLUS 1 S.N.A ..2 T0003 BN96-03652F ASSY COVER P-FRONT;LS30HUX(305T PLUS),,H 1 S.A ...3 M0112 BN63-02663D COVER-FRONT;LS30HUX (305T PLUS),HIPS HB 1 S.N

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6 Electrical Parts List Level Loc. No. Code No. Description & Specification Q'ty SA/SNA ...3 CN802 3722-001414 JACK-USB;4P/2C,AUF,BLK,ANGLE,A TYPE 1 S.A ...3 T0174 BN97-01026Z ASSY SMD;LS30HUB* 1 S.N.A ....4 SUB05 0202-001477 SOLDER-CREAM;LST309-M,-,D20~45##,96.5Sn/ 1.048 S.N.A ....4 D100 0401-001056 DIODE-SWITCHING;MMBD4148SE,100V,200mA,SO 1 S.A ....4 D101 0401-001056 DIODE-SWITCHING;MMBD4148SE,100V,200mA,SO 1 S.A ....4 D102 0401-001056 DIODE-SWITCHING;MMBD4148SE,100V,200mA,SO 1 S.A ....4 D103

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6 Electrical Parts List Level Loc. No. Code No. Description & Specification Q'ty SA/SNA ....4 R110 2007-000070 R-CHIP;0ohm,5%,1/10W,TP,1608 1 S.A ....4 R110 2007-000070 R-CHIP;0ohm,5%,1/10W,TP,1608 1 S.A ....4 R110 2007-000070 R-CHIP;0ohm,5%,1/10W,TP,1608 1 S.A ....4 R110 2007-000070 R-CHIP;0ohm,5%,1/10W,TP,1608 1 S.A ....4 R110 2007-000070 R-CHIP;0ohm,5%,1/10W,TP,1608 1 S.A ....4 R110 2007-000070 R-CHIP;0ohm,5%,1/10W,TP,1608 1 S.A ....4 R110 2007-000070 R-CHIP;0ohm,5%,1/10W,TP,1608 1 S.A ....4

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6 Electrical Parts List Level Loc. No. Code No. Description & Specification Q'ty SA/SNA ....4 R110 2007-000074 R-CHIP;100ohm,5%,1/10W,TP,1608 1 S.A ....4 R110 2007-000074 R-CHIP;100ohm,5%,1/10W,TP,1608 1 S.A ....4 R110 2007-000074 R-CHIP;100ohm,5%,1/10W,TP,1608 1 S.A ....4 R110 2007-000074 R-CHIP;100ohm,5%,1/10W,TP,1608 1 S.A ....4 R110 2007-000074 R-CHIP;100ohm,5%,1/10W,TP,1608 1 S.A ....4 R110 2007-000074 R-CHIP;100ohm,5%,1/10W,TP,1608 1 S.A ....4 R110 2007-000074 R-CHIP;100ohm,5%,1/10W,TP,160