Ensoniq dp4 schematics

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REVISIONS

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OESCRIPT ION

DATE APPROVED

1 PROTOTYPE RELEASE

PROTOTYPE RELEASE

PROTOTYPE RELEASE

PROTOTYPE RELEASE

PROTOTYPE RELEASE

PROTOTYPE RELEASE

RELEASE FOR PRODUCTION PER ER#42-541

01-25-95 T.M.

REVISED PER ECO# 3065

3/21/9; 77H

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SHT 1 COVER SHEET
SHT 2 CHANNELS 1 8 2 INPUT DIFF AMPS AND FRONT PANEL CONNECTORS.
SHT 3 CHANNELS 3 8 4 INPUT DIFF AMPS.
SHT 4 HEADPHONE AMP AND GUITAR 8 MIC INPUT PREAMPS.
SHT 5 CHANNELS 1 8 2 INPUT MUTING. PRE-EMPHASIS AND FILTER.
SHT 6 CHANNELS 3 8 4 INPUT MUTING. PRE-EMPHASIS AND FILTER.
SHT 7 CHANNELS 1 8 2 A/D CONVERTER.
SHT 8 CHANNELS 3 8 4 A/D CONVERTER AND MASTER CLOCK GENERATOR.
SHT 9 O/A CONVERTER AND SAMPLE AND HOLDS.
SHT 10 OUTPUT FILTERS, DE-EMPHASIS AND PRE MIXING.
SHT 11 CHANNELS 1 8 2 OUTPUT DRIVERS WITH MUTING AND POST MIXING.

SHT 12 CHANNELS 3 8 4 OUTPUT DRIVERS WITH MUTING AND POST MIXING.
SHT 13 VOLTAGE REGULATORS. +4/-10 SWITCH AND OFF BOARD CONNECTORS.

3. ALL 0.1UF BYPASS CAPACITORS ARE 50V +BO/-20% Z5U.
2. ALL CAPACITOR VALUES ARE IN MICROFARADS. 16V MINIMUM.
1. ALL RESISTOR VALUES ARE IN OHMS. 1/8W 5%.

NOTES - UNLESS SPECIFIED OTHERWISE

COVER SHEET

155 GREAT VALLEY PKWY. MALVERN PA

ENSONIO COPD

19355

APPROVALS

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OWN BY:

PCB SCHEMATIC

BAW. 8-4-94 ANALOG BOARD
cwuan SHAKER

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