Korg A3 SERVICE MANUAL ocr

SIGNAL PROCESSOR 1. SPECIFICATIONS........................................................ 2 2. STRUCTURAL DIAGRAM............................................ 3 3. BLOCK DIAGRAM....................................................... 4 4. CIRCUIT DIAGRAM..................................................... 5 5. P. C. BOARD.............................................................. 10 6. REFERENCE DATA................ 14 7. CHECK AND A D JU STM EN T...................................... 23 8. PARTS LIST................................................................ 25 1. SPECIFICATIONS ■ Input: Input level/impedance: +4dBm (+19dBm MAX)/lM-ohms, -20dBm (+19dBm MAX)/lM-ohms ■ Output: Output level/imdepance: +4dBm (19dBmMAX)/600 ohms -20dBm (-5dBmMAX)/600 ohms Direct out, Output level/impedance INPUT GAIN UNITY/1K ohms ■ AD/DA: 16-bit linear (DA: 4-times over-sampling digital

SERVICE MANUAL PERFORMANCE SIGNAL PROCESSOR A3 CONTENTS 1. SPECIFICATIONS ........................................................ 2 2. STRUCTURAL DIAGRAM ............................................ 3 3. BLOCK DIAGRAM ....................................................... 4 4. CIRCUIT DIAGRAM ..................................................... 5 5. P. C. BOARD .............................................................. 10 6. REFERENCE DATA ................ 14 7. CHECK AND A D JU STM EN T...................................... 23 8. PARTS LIST ................................................................ 25 KORG 1. SPECIFICATIONS ■ Input : Input level/impedance : +4dBm (+19dBm MAX)/lM-ohms, -20dBm (+19dBm MAX)/lM-ohms ■ Output : Output level/imdepance : +4dBm (19dBmMAX)/600 ohms -20dBm (-5dBmMAX)/600 ohms Direct out, Output level/impedance INPUT GAIN UNITY/1K ohms ■ AD/DA : 16-bit linear (DA: 4-times over-sampling digital filter) ■ Sampling frequency :37.1KHz ■ Frequency response :24Hz- 18KHz +1.5/-3dB ■ Dynamic range : 90dB ■ Memory : No. 1-100; No. 1 - 200 when using card ■ Front panel: KEY SW : UP, DOWN, DISPLAY SELECT, PARAMETER EDIT, UTILITY, WRITE, POWER SW, DOUBLE…