STUDER REVOX A721 PROFESSIONAL TAPE RECORDEROperating & Service InstructionsLanguage: English CONTENTS: 1. GENERAL: operatings controls, connector panel, start-up procedure, reproduce functions, record functions, special functions, real-time counter, automatic calibration, technical appendix. 2. DISASSEMBLY INSRUCTIONS: general information, housing, operating panel, tape deck, electrical modules. 3. FUNCTIONAL DESCRIPTION: operating panel, tape deck, system control, capstan motor control, remote interface, balance in/out, NR system, record control. 4. ALIGNMENT INSTRUCTIONS: general information, mechanical adjustments, electrical alignments, calibration of the audio data. 5. CIRCUIT DIAGRAMS 6. SPARE PARTS 7. TECHNICAL SPECIFICATIONS These excellent Operating & Service Instructions in PDF format will be sent to you.-------------------------------------------------------------------------------------------------------------- I have over 2,000 service & user manuals from various manufacturers, too many to list at one time. If I can help you with anything else please let me know. I will try to help you. If you have any questions please dont hesitate to ask. I try to answer any questions within 24 hours. private sales