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DP-3300
Mindray DP-3300 User Manual
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Overview
1.3.3.3Exploded view of the ke
yboard assembly
（
2
）
1
.
2
3
0
2
-
2
0
-
3
4
4
0
0
1
键盘
上盖
2
.
2
3
0
2
-
2
0
-
3
4
4
2
3
1
防尘
片
3
.
2
3
0
0
-
2
1
-
2
9
1
4
2
1
蜂鸣
器
4
.
2
3
0
2
-
2
0
-
3
4
4
0
2
1
硅胶
按键
6
.
0
0
0
0
-
1
0
-
1
0
8
9
3
1
轨迹球
7
.
2
3
0
0
-
2
0
-
2
9
1
4
4
1
轨迹
球连
接线
5
.
2
3
0
2
-
2
0
-
3
4
4
0
5
1
键盘
板
1
2
3
4
5
6
Figure 2-5 Exploded view of the keyboard asse
mbly
（
2
）
1.3.3.4Composition of the ke
yboard assembly
（
2
）
1
keyboard upper cover
2302-20-34400
1
2
dust plate
2302-20-34423
1
3
buzzer
2302-21-29142
1
4
silicone rubber ke
y
2302-20-34402
1
5
keyboard PCB
2302-20-34405
1
6
trackball
0000-10-10893
1
2-4
DP-3300/DP-3200
Service Manual
（
V1.1
）
23
25
Table of Contents
default chapter
6
Return Policy
6
Meaning of Safety Symbols
9
Meaning of Signal Words
9
Safety Precautions
9
Table of Contents
13
Contents
14
Chapter 1 Overview
17
Function Introduction
17
Introduction of Complete Machine
17
Basic Features
17
Structure and Assembly/Disassembly of the Machine
17
Structure of the Complete Machine
21
Appearance View of the Main Unit
21
Keyboard Assembly
23
Disassembly
27
Disassembly of the Cabinet Tail Board
29
Disassembly of the Cabinet Rear Cover
29
Disassembly of the Power Board
31
Disassembly of the Main Board and the Transducer Board
33
Disassembly of CRT Screen Filter
40
Disassembly of the Keyboard, Trackball and Buzzer
41
Disassembly of the Fan
46
Remove USB Extension Wire
47
Chapter 2 Description of the Principle
49
Principle of the Hardware
49
Principle Description of the Main Board
49
Working Principle of CPU
59
Principle of the Software
63
Features and Functions of the Real-Time Operating System
63
Description of the System Software
64
Chapter 3 System Start-Up and Upgrade
67
System Start up
67
Software Upgrading
67
Entering the Upgrading Procedure
67
Upgrading Operation
68
Chapter 4 Troubleshooting
71
Black Screen
71
N Oresponse from the Keyboard
71
N Oecho Signal in Image Area
72
Black Area in the Image（Black Strip
73
Image Interference
73
Back End Circuits Fault
74
Other Faults
75
Chapter 5 Maintenance and Cleaning
77
Maintenance to be Performed by User
77
Cleaning the System
77
Creating a Backup Copy of the System Hard Disk
79
Maintenance to be Performed by Service Personnel
79
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Mindray DP-3300 Specifications
General
Brand
Mindray
Model
DP-3300
Category
All in One Printer
Language
English
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