Sony mz r 900 service manual

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2 MZ-R900 TABLE OF CONTENTS 1. SERVICING NOTES ............................................... 3 2. GENERAL ................................................................... 4 3. DISASSEMBLY 3-1. Disassembly Flow ........................................................... 5 3-2. Panel Assy, Bottom ......................................................... 5 3-3. Panel Assy, Upper Section .............................................. 6 3-4. LCD Module, Panel Assy, Upper ............................ 6 3-5. MAIN Board Assy .......................................................... 7 3-6. Case Assy, Battery, MAIN Board ........................... 7 3-7. Strip, Ornamental ............................................................ 8 3-8. MD Mechanism Deck (MT-MZR900-171), Chassis Assy, Set ......................................................... 8 3-9. Service Assy, OP (LCX-4R) ........................................... 9 3-10. Holder Assy ..................................................................... 10 3-11. MOTOR FLEXIBLE Board ............................................ 10 3-12. Motor, DC (Sled) (M602) ............................................... 11 3-13. Motor, DC (Spindle) (M601), Motor, DC (Over Write Head UP/DOWN) (M603) ..... 11 4. TEST MODE .............................................................. 12 5. ELECTRICAL ADJUSTMENTS ......................... 17 6. DIAGRAMS 6-1. Block Diagram –SERVO Section– ................................. 27 6-2. Block Diagram –AUDIO Section– ................................. 28 6-3. Block Diagram –KEY CONTROL/DISPLAY/ POWER SUPPLY Section– ............................................ 29 6-4. Printed Wiring Boards ..................................................... 30 6-5. Schematic Diagram ......................................................... 31 6-6. IC Pin Function Description ........................................... 33 7. EXPLODED VIEWS 7-1. Panel Section ................................................................... 39 7-2. Chassis Section ............................................................... 40 7-3. MD Mechanism Deck Section (MT-MZR900-171) ....... 41 8. ELECTRICAL PARTS LIST ............................... 42 SAFETY-RELATED COMPONENT WARNING!! COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB- LISHED BY SONY. DimensionsApprox. 78.9 × 17.1 × 72.0 mm (w/h/d) (3 1/8 × 11/16 × 27/8 in.) MassApprox. 110 g (3.9 oz) the recorder onlySupplied accessoriesAC power adaptor (1) Headphones/earphones with a remote control (1) Rechargeable battery (1) Dry battery case (1) Rechargeable battery carrying case (1) Carrying pouch/carrying case with a belt clip AC plug adaptor (World model only) (1) Optical cable (1) Design and specifications are subject to change without notice. 1)Measured in accordance with the EIAJ(Electronic Industries Association of Japan) standard. 2)When using a 100% fully charged rechargeable battery. 3)When using a Sony LR6 (SG) STAMINA alkaline dry battery (produced in Japan). On power sources -For use in your house: Use the AC power adaptor supplied with this recorder. Do not use any other AC power adaptor since it may cause the recorder to malfunction. Polarity of the plug 4)When using a 100% fully charged rechargeable battery. 5)When using a Sony LR6 (SG) STAMINA alkaline dry battery (produced in Japan). When playing (Unit: approx.hours)(EIAJ 1)) Batteries Stereo LP2 LP4 NH-14WM nickel metal hydride rechargeable battery 2) 21 23 26 LR6 (SG) Sony alkaline dry battery 3) 30 35 38 NH-14WM nickel metal hydride rechargeable battery 2) + One LR6 (SG) 3) 53 60 66 3)Measured in accordance with the EIAJ(Electronic Industries Association of Japan) standard. (except U.S.A model) (1) ATTENTION AU COMPOSANT AYANT RAPPORT À LA SÉCURITÉ! LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE 0 SUR LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE REMPLACER CES COM- POSANTS QUE PAR DES PIÈCES SONY DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.