Samsung SyncMaster 305TPLUS User manual

SERVICEManual

LCD Monitor Fashion Feature

LCD-Monitor

Chassis LHU30BS

Model 305TPLUS

- 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

Samsung Electronics Co.,Ltd.

416, Maetan-3Dong, Yeongtong-Gu, Suwon City,

Gyeonggi-Do, Korea, 443-742

Printed in Korea

P/N : BN82-00169A-01

URL : http://itself.sec.samsung.co.kr/

-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.

3 Alignments and Adjustments

3-1

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 from HQ quality control department.

Install the below jig (Figure 1) and enter the data.

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.

TI-2

055

DDC Mana

Parallel Connector

(25P Cable) Connect Monitor

(Signal Cable)

Figure 1.

3-3 Hidden Key list

3 Alignments and Adjustments

3-2

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 Alignments and Adjustments

3-3

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 5 seconds.

With 1 beep sound, Factory Reset executes.

3 Alignments and Adjustments

3-4

Memo

7 Block Diagrams

7-1

7 Block Diagram

7-1 Block Diagram (Main)

7 Block Diagrams

7-2

7-2 Block Diagram (SMPS)

13 Circuit Descriptions

13-1

13 Circuit Descriptions

13-1 BLOCK discription (MAIN)

13 Circuit Descriptions

13-2

No BLOCK DESCRIPTION NAME

USB2504

SI4435

CONNECTOR-DVI

WT61P4

USB_DN

USB_UP

LVDS CONNECTOR

IC-MICROCONTROLLER,PLCC,44P,16Bit

IC-USC, USB2504,8Bit,TQFP,64P

FET-SILICON, SI4435DY,P,-30V,+-8.0A,

0.014ohm,2.5W,SO-8

CN_DSUB_24_3R_G2, CONNECTOR-DVI,

24P,3R,FEMALE,ANGLE,AUF

JACK_USB_08_G4, JACK-USB, 4P/2C,AUF,

BLK,ANGLE,A TYPE

JACK_USB_04_G2, JACK-USB, 4P/1C,AU,IVR,

ANGLE,B TYPE

CN_SMD_S_030, CONNECTOR-HEADER,

BOX,30P,1R,1.25mm,SMD-A,Sn+Pb,IVR

MICOM

USB

DC/DC

DVI-D INPUT

USB PORT

SIGNAL

CONNECTOR

DATA CONNECTOR

CN_S_015_G2, CONNECTOR-HEADER,

BOX,15P,1R,1.25mm,SMD-A,SnPb,IVR

DATA

CONNECTOR

POWER CONNECTOR

CN_S_016, HEADER-BOARD TO CABLE,

BOX,16P,1R,2mm,ANGLE,SN,IVORY

POWER

CONNECTOR

FUNCTION

CN_S_006_G2, CONNECTOR-HEADER,

BOX,6P,1R,1.25mm,SMD-A,SnPb,IVR

FUNCTION

CONNECTOR

INVERTER

CONNECTOR

CN_S_014,HEADER-BOARD TO CABLE,

BOX,14P,1R,2mm,ANGLE,SN,IVORY

inverter

connector

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