Arp 1601 service manual
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Page 1
WésEQUENCER MODEL'1601
SERVICE MANUAL
ARP INSTRUMENTS, INC.
320 Needham Street.
Newton, MA. 02164
617 965-9700
Document Number 9001901
© Septmnbor 1976, ARP IWRUMENTS, INC.
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THE INFORMATION CONTAINED HEREIN IS CONFIDENTIAL AND PROPRIETARY T0 AHP NSTRUMENIS. INC. IT IS
DISCLOSED TO YOU SOLELY FOR PURPOSES 0F INSTRUCTION AS TO OPERATION OF THE EQUIPMENT AND
MAIHTEMANCE AS APPROPRIATE. IT IS NOT TO BE USED BY YOU FOR ANY OTHER PURPOSE, NOR IS IT TO BE
DISCLGSED TO OTHERS WITHOUT THE EXPRESS PERMISSION OF #51? INSTHUMENTS, INC.
Page 2
{ .fiSEQUENCER MODEL 1601
SERVICE MANUAL
TABLE OF CONTENTS
1. INTRODUCTION
1.1 Product Dasaimion ........................ 2
1.2 Specifications ........... , ................ 2
1.3 Function Description . . . . .................. .3
2. THEORY OF OPERATION
2'1 SEqUGHCQr ........... v I ....... p o IIIIIIIII 4
22 Osmntizer ............. . - . . . ............. 4
3. CIRCUIT DESCRIPTIONS
SEOUENCER
31 Clock ()an ........................... . 5
3.2 OnBShot ..... 5
33 Chuck Oscillatw ......................... . .5
3.4 Randomizer, Skip 8: Reset ................. .. . .6
.15 Mask Circuit . .......................... . B
3.6 8189 ................................... 8
3.7 Foot Switch Jack . .............. . . . . ....... 6
3.8 Coumar/Latch . ..... . . . ................... 6
Decoder.............. ....... Wms
3.10 Gate Output Processing . . . . - . . .............. ?
QUANTIZER
3.1 1 Current Source & Semitonc Shift ............... '3
.2112 CV Generator 8: Scanner , . . ..... , ........... 'I
3v13 Counter ......................... . . . . . .7
314 Comparator. I . . . . . ...................... 1
3.15 Sample Control . ......................... 1
3,16 Externaicv Input ..................... . . .T
4. SEQUENCEH TEST POINTS ...... ' .......... . ...... 8,9
5. CALIBRATIONS. .. ........ .-. ..... ....... «30.11
6. ASSEMBLYIDISASSEMBLY . . ..................... l1
7. BLOCK DIAGnAu .. .'. .......................... 12
8. GENERAL INFORMATION {COSMOS Imgratw Circuits} . ., .13
9, SCHEMATICS 8L LAYOUTS ............ PHI-,1 5,15,17,18,,19
10. PA FITS LIST .................................. 22