Sony mz r 910 service manual

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2 MZ-R910 CAUTION Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous ra- diation exposure. Notes on chip component replacement - Never reuse a disconnected chip component. - Notice that the minus side of a tantalum capacitor may be dam- aged by heat. Flexible Circuit Board Repairing - Keep the temperature of the soldering iron around 270 ËšC dur- ing repairing. - Do not touch the soldering iron on the same conductor of the circuit board (within 3 times). - Be careful not to apply force on the conductor when soldering or unsoldering. UNLEADED SOLDER Boards requiring use of unleaded solder are printed with the lead- free mark (LF) indicating the solder contains no lead. (Caution: Some printed circuit boards may not come printed with the lead free mark due to their particular size) : LEAD FREE MARK Unleaded solder has the following characteristics. - Unleaded solder melts at a temperature about 40 ËšC higher than ordinary solder. Ordinary soldering irons can be used but the iron tip has to be applied to the solder joint for a slightly longer time. Soldering irons using a temperature regulator should be set to about 350 ËšC . Caution: The printed pattern (copper foil) may peel away if the heated tip is applied for too long, so be careful! - Strong viscosity Unleaded solder is more viscous (sticky, less prone to flow) than ordinary solder so use caution not to let solder bridges occur such as on IC pins, etc. - Usable with ordinary solder It is best to use only unleaded solder but unleaded solder may also be added to ordinary solder. 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. Battery lifeWhen recording (Unit: approxi.hours)(JEITA 1)) Batteries SP Stere oLP2 Stere oLP4 Stereo Nickel m e ta l hy dride rechargeable battery 2) 12 17 21 LR6 (S G) Sony al kaline dry battery 3) 12 19 23 Nickel metal hydride rechargeable battery + On e LR6 (SG)30 43 52 1)Measured in accordance with the J E ITA (J a p a n Ele c tronic s a nd In fo rm a tion Technology Industries Association) standard. 2)Wh e n u s ing a 100% fu lly c h a rged nickel metal hyd ride rech arg eable ba ttery (NH- 14WM(A)). 3)Whe n us ing a S ony LR6 (S G) STAMINA a lka line dr y batte ry (p roduced in Ja pan) . When playing (Unit Batteries S P StereoLP2 StereoLP4 Stere o Nickel m etal hydrid e rechargeable battery 2) 30 38 4 2 LR6 (S G) Sony alkaline dry battery 3) 44 52 6 2 Nickel m etal hydrid e rechargeable battery 2) + On e LR6 (SG) 3) 79 95 1 10 1)Measured in accordance woth the J E ITA (Japan Electronics and Information Technology Industries Association) standard. 2)Wh e n us ing a 1 00% fu lly ch arged nickel metal hyd ride rechargeable battery (NH- 14WM(A)). 3)Wh en using a Sony LR6 (S G) STAMINA a lka line dr y battery (p ro duced in Ja pan) : approxi.hours)(JEITA 1)) Mass Approx. 108g (3.8 oz) the recorder only 1) The LINE IN (OPT) jack is used to connect either a digital (optical) cable or a line (analog) cable. 2) The i/LINE OUT jack connects either headphones/earphones or a line cable. Design and specitications are subjext to change without notice.

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3 MZ-R910 TABLE OF CONTENTS 1. SERVICING NOTES ............................................... 4 2. GENERAL ................................................................... 5 3. DISASSEMBLY 3-1. Disassembly Flow ........................................................... 6 3-2. Panel Assy, Bottom ......................................................... 6 3-3. Panel Assy, Upper Section .............................................. 7 3-4. LCD Module, Panel Assy,Upper ............................. 7 3-5. MAIN Board Assy .......................................................... 8 3-6. Case Assy, Battery, MAIN Board ........................... 8 3-7. Strip, Ornamental ............................................................ 9 3-8. MD Mechanism Desk (MT-MZR910-180), Chassis Assy, Set ......................................................... 9 3-9. Service Assy, OP (LCX-5RV) ......................................... 10 3-10. Holder Assy ..................................................................... 10 3-11. Motor, DC (Sled) (M602) ............................................... 11 3-12. Motor, DC (Spindle) (M601), Motor, DC (Over Write Head UP/DOWN) (M603) ... 12 4. TEST MODE .............................................................. 13 5. ELECTRICAL ADJUSTMENTS ......................... 19 6. DIAGRAMS 6-1. Note for Printed Wiring Board andSchematic Diagrams ....................................................... 44 6-2. Block Diagram -“ SERVO Section -“ ............................... 46 6-3. Block Diagram -“ AUDIO Section -“ ............................... 47 6-4. Block Diagram -“ DISPLAY/KEY CONTROL/ POWER SUPPLY Section -“ ........................................... 48 6-5. Printed Wiring Board -“ MAIN Board (Component Side) -“ ............................. 49 6-6. Printed Wiring Board -“ MAIN Board (Conductor Side) -“ ............................... 50 6-7. Schematic Diagram -“ MAIN Board (1/4) -“ .................. 51 6-8. Schematic Diagram -“ MAIN Board (2/4) -“ .................. 52 6-9. Schematic Diagram -“ MAIN Board (3/4) -“ .................. 53 6-10. Schematic Diagram -“ MAIN Board (4/4) -“ .................. 54 6-11. IC Pin Function Description ........................................... 60 7. EXPLODED VIEWS 7-1. Panel Section ................................................................... 67 7-2. Chassis Section ............................................................... 68 7-3. MD Mechanism Deck Section (MT-MZR910-180) ....... 69 8. ELECTRICAL PARTS LIST ............................... 70