ROLAND SH 3A 5th

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F ELECTRONIC MUSIC L IN TR MEN , ,

ROLAND SYNTHESIZER

I-I-3A

THE 5th EDITION
Printed in Japan. '76.Apr.
APPLIED FROM SERIAL No.270800

E Roland Corporation

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C ONTENTS

1. SPECIFICATIONS ..........:.................................
2. GENERAL CIRCUIT DIAGRAM ...................................
3. CONTROL CIRCUIT ...........................................
3-1. CONTROL CIRCUIT BLOCK DIAGRAM ..........................
3-2. FILTER BOARD ASSEMBLY (FL-5) ...........................
3-}. PACK No.7B ASSEMBLY ....................................
4. VCO CIRCUIT ..................,............................
4-1. VCO PULSE BOARD ASSEMBLY (OP-9A) .......................
4-2. PACK No.8 ASSEMBLY .....................................
4-3. PACK No.4 ASSEMBLY .....................................
5. VCF-VGA CIRCUIT ...........................................
5-1. VCF-VCA BOARD ASSEMBLY (OP-103) ........................
6. POWER SUPPLY CIRCUIT ......................................
6-1. POWER SUPPLY BOARD ASSEMBLY (PS-12C) ...................
7. ADJUSTMENT ................................................

7-1. PREPARATION ..H.....................,..................

7-2. VCO TUNING .............................................
7-3. VCA ADJUSTMENT .....i...................................
7.4. CLICK BIAS ADJUSTMENT ..................................
7-5. RESONANCE ADJUSTMENT ...................................
7-6. ADSR ZERO ADJUSTMENT ...................................

7-7. VCF OCTAVE ADJUSTMENT ...............................

7-8. CHORUS ADJUSTMENT .......... ...... ....................

7-9.NOISE ADJUSTMENT mu... .............. ..........

8. PARTS LIST ............. . .. ........

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