Sony mz e 505 service manual

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2 MZ-E505 TABLE OF CONTENTS 1. SERVICING NOTES ............................................... 3 2. GENERAL ................................................................... 4 3. DISASSEMBLY 3-1. Disassembly Flow ........................................................... 5 3-2. Battery Case Lid .............................................................. 6 3-3. Case (Rear) ...................................................................... 6 3-4. MAIN Board ................................................................... 7 3-5. Upper Panel Section ........................................................ 7 3-6. SWITCH Board ............................................................... 8 3-7. Holder Assy (Z) ............................................................... 8 3-8. Mechanism Deck (MT-MZE505-176) ............................ 9 3-9. Bracket (L) Assy ............................................................. 10 3-10. Bracket (R) Assy ............................................................. 10 3-11. Optical Pick-up (LCX-4E) .............................................. 11 3-12. DC SSM18B Motor (Spindle) (M901) ........................... 11 3-13. DC Motor (Sled) (M902) ................................................ 12 4. TEST MODE .............................................................. 13 5. ELECTRICAL ADJUSTMENTS ......................... 18 6. DIAGRAMS 6-1. Block Diagram ................................................................ 24 6-2. Note for Printed Wiring Boards and Schematic Diagrams ....................................................... 25 6-3. Printed Wiring Board -“ MAIN Board (Component Side) -“............................. 26 6-4. Printed Wiring Board -“ MAIN Board (Conductor Side) -“............................... 27 6-5. Schematic Diagram -“ MAIN Board (1/3) -“.................. 28 6-6. Schematic Diagram -“ MAIN Board (2/3) -“.................. 29 6-7. Schematic Diagram -“ MAIN Board (3/3) -“.................. 30 6-8. IC Pin Function Description ........................................... 34 7. EXPLODED VIEWS 7-1. Upper Panel, Case (Rear) Section .................................. 40 7-2. Ornamental Belt Section ................................................. 41 7-3. Mechanism Deck Section (MT-MZE505-176) .............. 42 8. ELECTRICAL PARTS LIST ............................... 43 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. CAUTION Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous ra- diation exposure. Battery life 1) (Unit: Approx. hours) (JEITA 2)) Batteries Ni-MH rechargeable battery NH-14WM(A) 3) LR6 (SG) Sony Alkaline dry battery 4) LR6 (SG) 4) and NH-14WM(A) 3) 1)Measured with the power save function on (see Preserving battery power) is on. 2)Measured in accordance with the JEITA (Japan Electronics and Information Technology Industries Association) standard (using a Sony MDW-series Mini-disc). 3)With a fully charged battery4)When using a Sony LR6 (SG) STAMINA alkaline dry battery (produced in Japan). On the AC power adaptor (for the supplied battery charging stand) -For use in your house: Use the supplied AC power adaptor. Do not use any other AC power adaptor since it may cause the player to malfunction. Polarity of the plug SP Stereo LP2 LP4 (normal) Stereo Stereo 33 37 43 49 54 64 87 97 120 Design and specifications are subject to change without notice.

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3 MZ-E505 NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT The laser diode in the optical pick-up block may suffer electro- static break-down because of the potential difference generated by the charged electrostatic load, etc. on clothing and the human body. During repair, pay attention to electrostatic break-down and also use the procedure in the printed matter which is included in the repair parts. The flexible board is easily damaged and should be handled with care. NOTES ON LASER DIODE EMISSION CHECK Never look into the laser diode emission from right above when checking it for adjustment. It is feared that you will lose your sight. NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK (LCX-4E) The laser diode in the optical pick-up block may suffer electro- static break-down easily. When handling it, perform soldering bridge to the laser-tap on the flexible board. Also perform mea- sures against electrostatic break-down sufficiently before the op- eration. The flexible board is easily damaged and should be handled with care. OPTICAL PICK-UP FLEXIBLE BOARD SECTION 1 SERVICING NOTES laser-tap main boardtape S809 ABOUT VIOLET-COLOR-TYPE Not a whole set of the violet-color-type is colored violet, but only the ornamental belt and window (ornament) is violet, and the up- per panel, the case (rear) and the battery case lid are colored sil- ver. 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) -Replacement of CXD2671-210GA (IC601) used in this set re- quires a special tool. upper panel (silver) battery case lid (silver) case (rear) (silver) ornamental belt (violet) window (ornament) (violet) -In performing the repair with the power supplied to the set, re- moving the MAIN board causes the set to be disabled. In such a case, fix a convex part of the open/close detect switch (S809 on MAIN board) with a tape in advance.COLOR VARIATION SILVER BLUE PINK VIOLET Ea-“-“-“ Hong Kongaaaa