Alesis HR-16 Manuel d'utilisateur

HR-16/HR16B Service Manual 1.00 i 03/31/06 HR-16/HR-16B Drum Machines Service Manual V1.00 7/27/95

HR-16/HR16B Service Manual 1.00 4 3.2 Memory Mapped I/O In order to easily control the vast number of hardware functions that the 8031 needs to

HR-16/HR16B Service Manual 1.00 5 4.0 DM3AG ASIC The DM3AG ASIC is a complex LSI device, specifically designed for the purpose of playing percus

HR-16/HR16B Service Manual 1.00 6 5.0 Analog Signal Paths 5.1 Drum Signal Output The output of the DM3AG ASIC is an 18 bit value. This may seem a

HR-16/HR16B Service Manual 1.00 7 3. Avoid using adapters for two reasons. 1> Some adapters contain built in attenuators that can result in ext

HR-16/HR16B Service Manual 1.00 8 6.1 General Testing General testing should, at a minimum, consist of self test, and a short audio test (includ

HR-16/HR16B Service Manual 1.00 9 7.0 Updates and Corrections 7.1 New SRAM Supply Circuit • All Revisions. The new SRAM supply circuit (See dia

HR-16/HR16B Service Manual 1.00 10 7.3 Dirty Cliff jacks • All Revisions. Occasionally, oxidation will build up on the cliff jack contacts, caus

HR-16/HR16B Service Manual 1.00 11 7.6 10K MIDI Resistor (R5) • All Revisions. Since the HR-16 was released, we have found that a 10K resistor p

HR-16/HR16B Service Manual 1.00 12 7.10 DAC Drift • All Revisions. It has been found that some PCM-54's linearity tend to drift with time a

HR-16/HR16B Service Manual 1.00 13 7.15 Tape Capacitors • Revision A & CA The blue monolithic block RAM capacitors used throughout the board

HR-16/HR16B Service Manual 1.00 ii 03/31/06 PREFACE This document is intended to assist the service technician in the operation, maintenance and re

HR-16/HR16B Service Manual 1.00 14 7.20 PUP Capacitor • Revision CA When the PUP circuit first appeared, it was found that the circuit would occa

HR-16/HR16B Service Manual 1.00 15 8.0 Common Solutions A thorough knowledge of the software history can help solve a great many situations quic

HR-16/HR16B Service Manual 1.00 16 Intermittent reset. (cont.) R28 (reset threshold) is wrong value. (Revision AQ only). Add another 3K resistor i

HR-16/HR16B Service Manual 1.00 17 Some or all drum sounds are distorted. PCM-54 DAC out of adjustment. Adjust according to section 6.3. Faulty

HR-16/HR16B Service Manual 1.00 18 9.0 Service Parts List GROUP DESCRIPTION PART # QTY POSITION PCB NOTES ASY PCB, D1 MAIN REV AQ 8-20-003

HR-16/HR16B Service Manual 1.00 19 RES 10K 1/8W 5% 0-00-0103 15 R5,30,32,39,52,53,82,86,97,99,103,104,106,113,121 MAIN RES 100K 1/8W 5

HR-16/HR16B Service Manual 1.00 20 10.0 Software History DATE VERSION COMMENTS 11/1/87 1.01 First production release 12/1/87 1.02 1)

HR-16/HR16B Service Manual 1.00 21 8/25/88 1.09 1) Fixes bug that caused the HR-16 to send out an incorrect MIDI song position pointer if any te

HR-16/HR16B Service Manual 1.00 22 1) Fixed bug which caused a wrong amount of silence at the beginning of a pattern if its length was changed

HR-16/HR16B Service Manual 1.00 23 11.0 MIDI Implementation ALESIS HR-16/HR-16B MIDI SYSTEM EXCLUSIVE FORMAT The following information is provide

HR-16/HR16B Service Manual 1.00 iii 03/31/06 WARNINGS TO REDUCE THE RISK OF ELECTRIC SHOCK OR FIRE, DO NOT EXPOSE THIS PRODUCT TO WATER OR MOISTURE

HR-16/HR16B Service Manual 1.00 24 TRANSMITTED AS: 0: 0 A7 A6 A5 A4 A3 A2 A1 1: 0 A0 B7 B6 B5 B4 B3 B2 2: 0 B1 B0 C7 C6 C5 C4 C3 3:

HR-16/HR16B Service Manual 1.00 25 0FEH 27H 0FFH 0B5H 100H-187H DON'T ALTER(this can be DON'T CARE if manual voice/tune/mix is off) 188

HR-16/HR16B Service Manual 1.00 26 2) If a pattern or song does not exist, its MSB pointer will = 0, which is an illegal pointer address. Since t

HR-16/HR16B Service Manual 1.00 27 22H TOM 3 sound number (0-30H) 23H TOM 3 output assign (bit 7) and volume (bits 0-6: 0-63H) 24H TOM 3 panning

HR-16/HR16B Service Manual 1.00 28 1) Step data 0-99 indicate pattern steps. Step data 100-250 indicate tempo change of 50% to 200%, respectivel

HR-16/HR16B Service Manual 1.00 29 This command is used to copy a pattern to another pattern, a drum to a pattern, or a song to a song. If the c

HR-16/HR16B Service Manual 1.00 30 changed. It will be ignored if in song mode. The format is packed as 8 MIDI bytes per 7 data bytes as describe

HR-16/HR16B Service Manual 1.00 31 12.0 Service Manual History 7/27/95 V1.00 1st release.

HR-16/HR16B Service Manual 1.00 32 INDEX + +12V, 1, 2 +5V, 1, 3, 15 - -12V, 1 1 1/4 inch jacks, 6 1/8 inch cable, 8 12MHz, 3 1N5231B, 9, 18 4 4052,

HR-16/HR16B Service Manual 1.00 33 PUP, 2, 14, 17 Q Q1/Q2, 4 Q10, 2, 18 Q11, 2 Q12-Q13, 3 Q3, 6 Q4, 3 Q5, 3 QUANTIZE, 21, 22, 28, 29 R R.F., 1, 10,

HR-16/HR16B Service Manual 1.00 iv 03/31/06 SAFETY SUGGESTIONS Carefully read the applicable items of the operating instructions and these safety s

HR-16/HR16B Service Manual 1.00 34 NOTES

HR-16/HR16B Service Manual 1.00 v 03/31/06 General Troubleshooting While this manual assumes that the reader has a fundamental understanding of e

HR-16/HR16B Service Manual 1.00 vi 03/31/06 TABLE OF CONTENTS PREFACE...

HR-16/HR16B Service Manual 1.00 1 1.0 General Description Diagram 1 provides a simplified block diagram to show major sub systems. Note that the

HR-16/HR16B Service Manual 1.00 2 2.1 Battery Backup Battery backup is actually more complicated than it might first appear, as it depends on a

HR-16/HR16B Service Manual 1.00 3 C62 was added to the analog rails of the op-amp to prevent oscillation during power up, and may need to be added