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EARP EXPLORER | MODEL 2900 ya aus SO > — À eee ee WA BSS ee ARP INSTRUMENTS, INC. 320 Needham Street, Newton, Mass. 02164 ^BP_、EXPLORER 1 MODEL 2900 TABLE OF CONTENTS 1.INTRODUCTION 1.1 D E S C R IP T IO N 3 1.2 S P E C IF IC A T IO N 3 1.3 S IG N A L FLO W 3 2. 2901 BOARD: Special Effects 2.1 2901 C IR C U IT D E S C R IP TIO N S 5 2 2 2901 B O A R D T R IM S 6 2.3 2901 TEST PO IN TS 6 2.4 2901 S C H E M A T IC S 8 2.5 2901 B O AR O L A Y O U T 9 3. 2902 BOARD: ADSR, VCF, VCA 3-1 2 90 2 C IR C U IT D E S C R IP TIO N S 11 3.2 2 90 2 B O A R D T R IM S 12 3.3 2 9 0 2 B O A R D TE S T PO IN TS 13 3.4 2 90 2 S C H E M A T IC S 14 3.5 2902 B O A R D L A Y O U T 15 4. 2903 BOARD: Waveform Generator 4.1 2903 C IR C U IT D ESC R IPTIO N S 17 4.2 2 90 3 B O A R D T R IM S 18 4.3 2 9 0 3 B O A R D TEST P O IN TS 18 4.4 2 9 0 3 S C H E M A T IC S 2 0 4.5 2 90 3 B O A R D L A Y O U T 21 5. 2

EXPLORER I MODEL 2900 S E R V I C E M A N U A L ARP INSTRUMENTS, INC. 320 Needham Street, Newton, Mass. 02164 617 965-9700 ^BP_、EXPLORER 1 MODEL 2900 SERVICE MANUAL TABLE OF CONTENTS 1 .INTRODUCTION 1.1 D E S C R IP T IO N 3 1.2 S P E C IF IC A T IO N 3 1 .3 S IG N A L FLO W 3 2. 2901 BOARD: Special Effects 2.1 2901 C IR C U IT D E S C R IP TIO N S 5 2 2 2901 B O A R D T R IM S 6 2 .3 2901 TEST PO IN TS 6 2.4 2901 S C H E M A T IC S 8 2.5 2901 B O AR O L A Y O U T 9 3. 2902 BOARD : ADSR, VCF, VCA 3-1 2 90 2 C IR C U IT D E S C R IP TIO N S 11 3.2 2 90 2 B O A R D T R IM S 12 3.3 2 9 0 2 B O A R D TE S T PO IN TS 13 3.4 2 90 2 S C H E M A T IC S 14 3.5 2902 B O A R D L A Y O U T 15 4. 2903 BOARD: Waveform Generator 4.1 2903 C IR C U IT D ESC R IPTIO N S 17 4.2 2 90 3 B O A R D T R IM S 18 4 .3 2 9 0 3 B O A R D TEST P O IN TS 18 4.4 2 9 0 3 S C H E M A T IC S 2 0 4 .5 2 90 3 B O A R D L A Y O U T 21 5. 2904 BOARD: Power S叩ply 5.1 2904 B O A R D C IR C U IT D E S C R IP TIO N S 23 5.2 2904 B O A R D T R IM S 23 5.3 2904 B O A R D S C H E M A T IC S (W ITH T Y P IC A L V O L T A G E S ) 24 5.4 2904 B O A R D L A Y O U T 25 6. PARTS LIST 26 7. REVISIONS 27 ARP INSTRUMENTS, INC. 320…