Table Of Contents - Alesis D4 Service Manual

PREFACE ..................................................................................... ii
WARNINGS .................................................................................. ii
SAFETY SUGGESTIONS ............................................................. iii
1.00 General Descriptions............................................................. 1
2.00 Power Supply ........................................................................ 2
3.00 Digital Signal Paths ............................................................... 3
4.00 Analog Signal Paths .............................................................. 6
5.00 Test Procedures .................................................................... 7
6.00 Updates and Corrections....................................................... 10
7.00 Common Solutions ................................................................ 11
8.00 Service Parts Lists ................................................................ 12
9.00 D4 Software History .............................................................. 16
10.00 D5 Software History ............................................................ 18
11.00 MIDI Implementation ........................................................... 19
12.00 Service Manual History ....................................................... 28
13.00 Schematics.......................................................................... 29
INDEX ........................................................................................... 36
Alesis D4/D5 Drum Modules Service Manual

Table of Contents

2.10 Battery Backup ...............................................................................2
2.20 PUP Circuit .....................................................................................3
3.10 The 8031 ........................................................................................3
3.11 Reset .................................................................................3
3.12 Memory mapped I/O..........................................................4
3.13 Data Entry Knob And Footswitches ..................................4
3.14 Keypad Decoding ..............................................................4
3.15 MIDI ...................................................................................4
3.20 DM3AG ASIC .................................................................................4
3.21 Address Buss Decoding ....................................................5
3.30 Mask ROMS ...................................................................................6
4.10 D4 Audio Output .............................................................................6
4.11 D4 Headphone Output ......................................................6
4.20 D5 Audio Output .............................................................................6
4.21 D5 Headphone Output ......................................................7
4.30 Trigger Inputs .................................................................................7
4.30 Analog-Digital Conversion..............................................................7
5.10 D4 Self Test....................................................................................8
5.20 D5 Self Test....................................................................................8
5.30 Further Testing ...............................................................................9
6.10 D4 Updates.....................................................................................10
8.10 D4 Service Parts List......................................................................12
8.20 D5 Service Parts List......................................................................14
9.10 Version 1.01 ...................................................................................16
9.20 Version 1.02 ...................................................................................16
9.30 Version 1.03 ...................................................................................17
9.40 Version 1.04 ...................................................................................17
10.10 Version 1.01 .................................................................................18
13.10 D4 Schematics .............................................................................29
13.20 D5 Schematics .............................................................................31
13.30 D5 Component I.D........................................................................34
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