Dell E207WFP User Manual

20" LCD Color Monitor Dell E207WFP
1
Service
Service
Service
Horizontal Frequency
30 kHz to 83 kHz
Table Of Contents
Description Page Description Page
SAFETY NOTICE
ANY PERSON ATTEMPTING TO SERVICE THIS CHASSIS MUST FAMILIARIZE HIMSELF WITH THE
CHASSIS AND BE AWARE OF THE NECESSARY SAFETY PRECAUTIONS TO BE USED WHEN SERVICING
ELECTRONIC EQUIPMENT CONTAINING HIGH VOLTAGES.
5.2.Electrical Block Diagram………………..…..….......21
6.Schematic Diagram………..................................….....23
6.1Main Board......………......................................23
6.2 Power Board……..…….……....................................28
7.PCB Layout..……...………….......................................30
7.1.Main Board……………..…........................................30
7.2.Power Board……………........................................32
7.3.Key Board………………….....................................34
8.Maintainability………….......................................35
8.1.Equipments and Tools Requirement..…….…...........35
8.2.Trouble Shooting………………….............................36
9.White-Balance, Luminance adjustment...…………......42
10.ISP Instruction…………….…….................................44
11.Monitor Exploded View…………….…………............50
12.BOM List………….....................................................53
13.Different Parts List…………………….……………...86
CAUTION: USE A SEPARATE ISOLATION TRANSFOMER FOR THIS UNIT WHEN SERVICING
Table Of Contents.......…….................……...........…........1
Revision List.….........................………................……......2
Important Safety Notice.….……….…..................……......3
1.Monitor Specifications.....…........................………........4
2.LCD Monitor Description…………………………….......5
3.Operation Instructions……………...............……...........6
3.1.General Instructions…………………………………….6
3.2.Control Buttons……………...............……...............7
3.4 Adjusting the Picture...........…………….........………..8
4.Input/Output Specification.............……………........…14
4.1.Input Signal Connector............………….................14
4.2.Factory Preset Display Modes...…..…......................14
4.3.Power Supply Requirements..........……...................15
4.4.Panel Specification…….....……………..................16
4.5.Definition of Pixel Defects…………...............……….17
5.Block Diagram…….…...................…………................19
5.1.Software Flow Chart………..………………....….......19

Dell E207WFP Specifications

General

Screen Size	20 inches
Resolution	1680 x 1050
Panel Type	TN
Brightness	300 cd/m²
Contrast Ratio	800:1
Response Time	5 ms
Connectivity	VGA, DVI-D
Aspect Ratio	16:10
Viewing Angle	160° (H) / 160° (V)

Summary

Important Safety Notice

Safety Precautions and Handling

General safety warnings and handling precautions for service.

Monitor Specifications and Characteristics

Technical Specifications

Details on display, input, power, and panel characteristics.

Pixel and Polarizer Defect Definitions

Criteria for defining pixel and polarizer defects.

Operation Instructions

General Operation and Controls

How to navigate menus and use monitor buttons for operation.

Picture and OSD Adjustments

Procedures for adjusting display picture and OSD settings.

System Diagrams and Specifications

Input/Output, Panel & Power Specs

Connector details, display modes, power, and panel characteristics.

System Block Diagrams

High-level diagrams of monitor's main and power board circuitry.

Circuit Schematics and PCB Layouts

Main Board Schematics and PCB

Circuit diagrams and physical layout for the main board.

Power Board Schematics and PCB

Circuit diagrams and physical layout for the power board.

Key Board PCB Layout

Physical layout of the keyboard circuit board.

Service and Troubleshooting

Equipments and Tools Required

List of necessary tools and equipment for servicing.

Troubleshooting Procedures

Step-by-step guides for diagnosing and resolving common issues.

Calibration and Firmware Programming

White Balance and Luminance Calibration

Procedures for adjusting color temperature and brightness.

ISP Instruction and Software

Guide for In-System Programming (ISP) and software setup.

Parts and Assembly Information

Exploded Views

Visual breakdown of the monitor's physical assembly.

Bill of Materials (BOM) and Parts Lists

Comprehensive lists of all parts, including variations.