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DP-3300
Mindray DP-3300 User Manual
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Structure and
Assembl
y/Disassembly of the Machine
6.
Disconnect
the
connection
wire
connector
of
the
buzzer
,
re
move
14
ST3x8
screws
fixing
the
keyboard,
an
d
remove
the
silicone
rubber
keys
to
take
out
the
keyboard
PCB,
and
then
remove
2
ST2x6
scre
ws
fixing
the
buzzer
to
take
out
the buzzer;
Figure 2-34 Remove the buzzer
DP-3300/DP-3200
Service Manual
（
V1.1
）
2-25
ST3x8 screw
（
14
）
Keyboard PCB
Silicone rubber key
Connection wire of buzzer
Buzzer
ST2x6 screw
（
2
）
44
46
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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