Sony mz b 10 service manual

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2 MZ-B10 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 -K eep 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. On power sources - Use house current, LR6 (size AA) battery. -For use in your house: use the AC power adaptor s upplied with this recorder. Do not use any other AC power adaptor since it may cause the recorder to ma lfunction. -C onnect the AC power adaptor to an easily accessible AC outlet. Should you notice an abnormality in the AC power adaptor, disc onnect it from the AC outlet immediately. - The recorder is not disconnected from the AC power s ource (mains) as long as it is connected to the wall outlet, even if the recorder itself has been turned off. - If you are not going to use this recorder for a l ong time, be sure to disconnect the power s upply (AC power adaptor, dry battery). To rem ove the AC power ad aptor from the wall outlet, grasp the adaptor plug itself; never pull the cord. Polarity of the plug 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 life The battery life may be shorter due to operating c onditions and the temperature of the location. Wh en recording 1)2) (Unit: approx.hours)(JEITA 3)) 1)When using a Sony LR6 (SG) STAMINA al ka line dry batteries (produced in Japan) and PowerMode is set to NORMAL (page 40). Setting PowerMode to QUICK re sult in a shorter battery life (page 40). 2)Wh en re co rded with the built-in microphone. Recording mode Approx. hours SP 24 LP2 34 LP4 48 MONO 34 Notes Stop the recorder before replacing batteries. An op tional AC power adaptor is recomme nded for long recording. 3)Measured in accordance with the JEITA (Japan Electronics and Information Technology Industries Association) standard. When playing 1) (Unit: ap prox.hours)(JEITA 2)) Recording mode Speaker 3) He adphones/ ear phones 4) SP 45 90 LP2 50 100 LP4 55 110 MONO 50 100 1)Wh en using a Sony LR6 (SG) STAMINA alkali ne dry batteries (produced in Japan) and P owerMode is set to NORMAL (page 40). 2)Measur ed in accordance with the JEITA (Japan Electronics and Information Technology Industries Association) standard. 3)When played using the built-in speaker.4)When played using headphones/earphones.

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3 MZ-B10 TABLE OF CONTENTS 1. SERVICING NOTES ...................................................... 4 2. GENERAL ........................................................................\ .. 5 3. DISASSEMBLY 3-1. Disassembly Flow........................................................ 6 3-2. Case (Low er) Assy....................................................... 7 3-3. Speaker Assy................................................................ 7 3-4. MAIN Board ................................................................ 8 3-5. Electret Condenser Microphone (MIC901)................ 8 3-6. Set Chassis Assy, Case (Spk) Assy............................ 9 3-7. Case (Upper) Assy....................................................... 9 3-8. LCD Module .............................................................. 10 3-9. Rec Button Assy........................................................ 10 3-10. Mechanism Deck (MT-MZN710-177)...................... 11 3-11. Gear (SA), OP Ser vice Assy (LCX-5R)................... 12 3-12. Holder Assy ............................................................... 13 3-13. DC Motor (Sled) (M602).......................................... 13 3-14. DC Motor (Over Write Head Up/Down) (M603), DC SSM18B Motor (Spindle) (M601)..................... 14 4. TEST MODE .................................................................. 15 5. ELECTRICAL ADJUSTMENTS ............................. 20 6. DIAGRAMS 6-1. Block Diagram ......................................................... 35 6-2. Note For Printed Wiring Board And Schematic Diagrams .......................................... 36 6-3. Printed Wiring Board -“ MAIN Board (Side A) -“ .... 37 6-4. Printed Wiring Board -“ MAIN Board (Side B) -“ .... 38 6-5. Schematic Diagram -“ MAIN Board (1/4) -“............. 39 6-6. Schematic Diagram -“ MAIN Board (2/4) -“............. 40 6-7. Schematic Diagram -“ MAIN Board (3/4) -“............. 41 6-8. Schematic Diagram -“ MAIN Board (4/4) -“............. 42 6-9. IC Pin Function Description...................................... 47 7. EXPLODED VIEWS 7-1. Lower Case Section ................................................... 53 7-2. Upper Chassis Section............................................... 54 7-3. Chassis Section .......................................................... 55 7-4. Mechanism Deck Section-1 (MT-MZN710-177) ....... 56 7-5. Mechanism Deck Section-2 (MT-MZN710-177) ....... 57 8. ELECTRICAL PARTS LIST ....................................... 58