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PM-60
Mindray PM-60 Service Manual
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2-4
2.3.1.1 Power Suppl
y
The power m
odule provides
the main c
ontrol unit w
ith 3.1
V
, 2.5
V
and 0.
9 V
pow
er supple.
Label
Voltage
Applicable parts
DVDD
3.1 V
Alarm LEDs, Flash memo
ry
, infrared light-emitting IC,
PC communicati
on cable, L
CD boost up
circuit,
prestage audio op
tional am
plifier
.
VDDE
2.5 V
DSP
peripheral voltag
e, SDRAM, LCD logic, infrared
logic, button
s and resetting.
VDDINT
0.9 V
DSP
kernel voltage
13
15
Table of Contents
Default Chapter
5
Table of Contents
5
1 Safety
7
Safety Information
7
Dangers
8
Warnings
8
Cautions
8
Notes
8
Equipment Symbols
9
2 Theory of Operation
11
Introduction
11
System Connections
11
Mounting the Pulse Oximeter
11
Connectors for Peripheral Devices
12
Main Unit
13
Main Control Unit
13
Power Supply
14
Main Board Interfaces
19
Spo 2 Module
20
Charger Stand
21
3 Testing and Maintenance
23
Introduction
23
Test Report
24
Recommended Frequency
24
Visual Test
25
Power on Test
25
Performance Tests
26
Spo Test
26
Spo Test in Motion Mode
26
Electrical Safety Tests
27
Enclosure Leakage Current Test
28
Patient Leakage Current Test
28
Output Interface Test
29
RS232 Port Test
29
Infrared Output Test
29
Program Upgrade
30
4 Troubleshooting
31
Introduction
31
Part Replacement
31
Software Version Check
32
Technical Alarm Check
32
Troubleshooting Guide
33
Power On/Off Failures
33
Display Failures
33
Alarm Problems
34
Button Failure
34
Interface Failures
34
Power Supply Failures
35
Software Upgrade Problems
35
5 Repair and Disassembly
37
Tools
37
Preparations for Disassembly
37
Disassembly Guide
38
Removing the Covers
38
Removing the Main Board
40
Removing the Speaker and Spo
40
Removing the LCD Screen
41
Remove the Screen Mount
42
6 Parts
43
Introduction
43
Main Unit
44
Front Panel Assembly
45
Main Board Assembly
46
Battery Adjusting Bracket Assembly
47
Rear Cover Assembly
48
Replacement Parts
49
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Mindray PM-60 Specifications
General
Brand
Mindray
Model
PM-60
Category
Medical Equipment
Language
English
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