Korg A2 SERVICE MANUAL ocr

?3a?!)ï!ilAîKa 'jíüML?hqcs330¡í 1. SPECIFICATION....................................................... 1 2. STRUCTURAL DIAGRAM......................................... 2 3. BLOCK DIAGRAM................................................... 3-a 4. CIRCUIT DIAGRAM.................................................. 3-b,3-c 5. P.C. BOARDS........................................................... 4 G. CIRCUIT EXPLANATION........................................... 8 7. CHECK AND ADJUSTMENT.................................... 10 8. 1C CHECK POINT..................................................... 16 9. REFERENCE DATA.................................................. 19 10. PARTS LIST............................................................. 25 1. SPECIFICATION ■ Front panel input: FRONT (GUITAR IN) fixed at - 20dB (- 5dBm MAX)/1 M Q ■ Back panel input: Input level/impedance

SERVICE MANUAL ?3a?!)ï!ilAîKa 'jíüML ?hqcs330¡í CONTENTS 1. SPECIFICATION ....................................................... 1 2. STRUCTURAL DIAGRAM ......................................... 2 3. BLOCK DIAGRAM ................................................... 3-a 4. CIRCUIT DIAGRAM .................................................. 3-b,3-c 5. P.C. BOARDS ........................................................... 4 G. CIRCUIT EXPLANATION ........................................... 8 7. CHECK AND ADJUSTMENT .................................... 10 8. 1C CHECK POINT ..................................................... 16 9. REFERENCE DATA .................................................. 19 10. PARTS LIST ............................................................. 25 1. SPECIFICATION ■ Front panel input : FRONT (GUITAR IN) fixed at - 20dB ( - 5dBm MAX)/1 M Q ■ Back panel input : Input level/impedance : +4dB (+19dBm MAX)/50K 0 - 10dB (+5dBm MAX) /50K Q ■ Back panel output : Output level/impedance : +4dB (19dBm MAX)/470 Q - 10dB (+5dBm MAX)/470 0 Headphone out impedance: over 10 Q ■ AD/DA : 16 - bit linear (DA: 4 - times over - sampling digital filter) ■ Sampling frequency :…