Yamaha LSI YMF715 Informations techniques télécharger pdf (Page 164)

Disassembly and Unit Replacement 4-23

3. Pull out and remove the display bezel by first pulling on the inside of the bezel sides and lower

bezel area. Then pull up the top bezel area.

Figure 4-31 Removing the Display Bezel

4. Unplug two connectors and remove the inverter board.

Figure 4-32 Removing the Inverter Board

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390 Series390 Series 1
CopyrightCopyright 2
DisclaimerDisclaimer 2
Manual Structure 3
Conventions 4
Chapter 3 BIOS Setup Utility 7
List of Figures 9
List of Tables 11
System Introduction 13
1.2 System Board Layout 14
System Introduction 1-3 15
1.2.2 CPU Board 16
1.2.3 Audio Board 17
1.2.4 Battery Board 17
1.2.5 Keyboard/Touchpad Board 18
1.3 Jumpers and Connectors 19
1-8 Service Guide 20
Table 1-2 SW1 Switch Settings 20
1.4.1 Memory Address Map 21
1.4.2 Interrupt Channel Map 21
1.4.3 DMA Channel Map 22
1.4.4 I/O Address Map 22
• Memory bus width: 64-bit 23
1.4.8 Second-Level Cache 24
1.4.9 Video Memory 25
1.4.10 Video 25
1.4.11 Parallel Port 26
1.4.12 Serial Port 27
1.4.13 Audio 27
1.4.14 PCMCIA 27
1.4.15 Touchpad 28
1.4.16 Keyboard 28
1.4.17 FDD 29
1.4.18 HDD 30
1.4.19 CD-ROM 30
• Rapid mode 31
• Charge-in-use mode 31
• Trickle mode 31
1.4.22 DC-DC Converter 32
1.4.23 DC-AC Inverter 33
1.4.24 LCD 33
1.4.25 AC Adapter 34
1.5.1 BIOS 35
STANDBY MODE 37
LIGHT GREEN MODE 38
HIBERNATION MODE 38
DISPLAY STANDBY MODE 39
• Flash power LED with 1 Hz 40
• Windows 95 41
Name Function Location 42
1.6 Block Diagrams 43
1.6.2 Clock 44
System Introduction 1-33 45
1.8 Mechanical Specifications 46
Major Chips Description 47
2.1.1 Features 48
2.1.2 Block Diagram 50
2.1.3 Terminal Functions 51
2-6 Service Guide 52
Major Chips Description 2-7 53
2-8 Service Guide 54
Major Chips Description 2-9 55
2-10 Service Guide 56
Major Chips Description 2-11 57
2-12 Service Guide 58
Major Chips Description 2-13 59
2-14 Service Guide 60
Major Chips Description 2-15 61
2-16 Service Guide 62
Major Chips Description 2-17 63
2-18 Service Guide 64
Major Chips Description 2-19 65
2.2.1 M1531 66
• Enhanced Power Management 68
Major Chips Description 2-23 69
2.2.1.2 Pin Diagram 69
2-24 Service Guide 70
2.2.1.3 Signal Descriptions 70
Major Chips Description 2-25 71
2-26 Service Guide 72
Major Chips Description 2-27 73
2-28 Service Guide 74
2.2.1.4 Numerical Pin List 74
Major Chips Description 2-29 75
2-30 Service Guide 76
Major Chips Description 2-31 77
2-32 Service Guide 78
Major Chips Description 2-33 79
2.2.2 M1533 80
• Built-in PCI IDE controller 84
• USB interface 84
• SMBus interface 84
Major Chips Description 2-39 85
2.2.2.2 Pin Diagram 85
2-40 Service Guide 86
2.2.2.3 Numerical Pin List 86
Major Chips Description 2-41 87
2-42 Service Guide 88
Major Chips Description 2-43 89
2-44 Service Guide 90
Major Chips Description 2-45 91
2-46 Service Guide 92
2.3.1 Features 93
• Serial Ports 94
• Infrared Port 94
• ISA Host Interface 94
2.3.2 General Description 95
2.3.3 Pin Configuration 96
Major Chips Description 2-51 97
2.3.4 Pin Descriptions 98
Major Chips Description 2-53 99
BUFFER TYPE DESCRIPTIONS 100
Major Chips Description 2-55 101
2.3.6 Block Diagram 102
2.4.1 Features 103
• Drivers Features 105
• Multimedia Software 105
• Software Utilities 105
• Software Documentation 105
• Software Support 106
• BIOS Features 106
• System BIOS Hooks 106
• BIOS Modify Program (BMP) 106
2.4.3 Introduction / Overview 107
• PCI Bus 109
• Display Memory Interface 110
Major Chips Description 2-65 111
2-66 Service Guide 112
2.4.4.4 Pin Functions 112
Table 2-8 65555 Pin Functions 112
Major Chips Description 2-67 113
MVCC and GND 113
2-68 Service Guide 114
Major Chips Description 2-69 115
2-70 Service Guide 116
Major Chips Description 2-71 117
2-72 Service Guide 118
Major Chips Description 2-73 119
2-74 Service Guide 120
Major Chips Description 2-75 121
2-76 Service Guide 122
2.5.1 Overview 123
2.5.2 Description 123
2.5.3 Pin Configuration 124
2.5.4 Pin Descriptions 125
Functional Block Diagram 126
2.6.1 Features 127
2.6.2 Pin Diagram 128
Multi-purpose Dins: 13 pins 129
2-84 Service Guide 130
BIOS Setup Information 131
3-2 Service Guide 132
3.1 Basic System Settings 133
3.2 Startup Configuration 134
BIOS Setup Information 3-5 135
BIOS Setup Information 3-7 137
3.4 System Security 138
3.5 Power Management Settings 139
3.6 Load Default Settings 141
4.1.1 Before You Begin 142
4-2 Service Guide 143
4.1.2 Connector Types 144
4.1.3 Disassembly Sequence 145
4.2 Installing Memory 147
4.3 Removing the Modem Board 149
4.5 Removing the Keyboard 151
4.6.2 Removing the Display 154
4.6.4 Replacing the CPU 156
4.6.5 Detaching the Top Cover 157
4.6.6 Removing the Mainboard 158
REMOVING THE CHARGER BOARD 160
REMOVING THE PCMCIA SOCKETS 160
REMOVING THE AUDIO BOARD 161
REMOVING THE TOUCHPAD 162
REMOVING THE SPEAKERS 162
4.7 Disassembling the Display 163
4-24 Service Guide 165
Model Number Definition 166
Exploded View Diagram 167
Spare Parts List 174
C-2 Service Guide 175
Table C-1 Spare Parts List 175
Spare Parts List C-3 176
C-4 Service Guide 177
Schematics 178
CPU BD TO BD CONNECTOR 179
ALADDIN IV 181
M1533 BYPASS CAPACITORS 182
256K L2 PIPELINE BURST CACHE 183
VCCP BYPASS CAP 189
VCC BYPASS CAP 189
Serial Port COM1 193
FAN conn 194
BIOS POST Checkpoints 202
E-2 Service Guide 203
BIOS POST Checkpoints E-3 204

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