Sony zs m 30 ver 1 1
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2 ZS-M30 Modulation system EFM (Eight-to-Fourteen Modulation) Number of programme positions 2 stereo programme positions Frequency response 20 - 20,000 Hz +1/–2 dB Signal-to-noise ratio Over 80 dB (during playback) Wow and flutter Below measurable limit General Speaker Full-range: 8 cm (3 1 ⁄4 in.) dia., 4 Ω cone type (2) Panorama sound: 5 cm (2 in.) dia., 12 Ω cone type (2) Inputs LINE IN (stereo minijack): Sensitivity 436 mV/870 mV Outputs Headphones jack (stereo minijack) (1): For 32 Ωimpedance headphones Maximum power output Full-range: 8 W Panorama sound: 3.4 W Specifications ........................................................................... 1 1. SERVICING NOTE 1-1. Notes on Handling the Optical Pick-up Block or Base Unit ............................................................................ 3 1-2. Notes on Laser Diode Emission Check .............................. 3 1-3. Notes on Chip Component Replacement ........................... 3 1-4. Flexible Circuit Board Repairing ....................................... 3 1-5. Chuck Plate Jig on Repairing ............................................. 3 1-6. Checking the Laser Diode and Focus Search Operation .... 3 1-7. Checks Prior to Parts Replacement and Adjustments (for MD Section) ............................................................... 4 2. GENERAL Playing a CD ...................................................................... 5 Recording a Whole CD (Synchronized Recording) ........... 5 Playing an MD ................................................................... 6 Listening to the Radio ........................................................ 6 3. DISASSEMBLY 3-1. Cabinet (Rear), Cabinet (Front) ......................................... 7 3-2. BATT (B) Board, BATT (A) Board, Power Board ............. 7 3-3. Cabinet (Upper) ASSY ....................................................... 8 3-4. Main Board, LCD Board .................................................... 8 3-5. CD Board ........................................................................... 9 3-6. Top Board ........................................................................... 9 3-7. Tuner Board ........................................................................ 9 3-8. MD Block ASSY .............................................................. 10 3-9. SW (L) Board, Jack Board, SW (R) Board ...................... 10 3-10. MD Board ...................................................................... 11 3-11. REC Board, DETECT Board ......................................... 11 3-12. Over Write Head (HR901), MD Optical Pick-up, D SW Board ................................................................... 12 4. TEST MODE 4-1. MD Section ...................................................................... 13 4-2. Section the Test Mode ...................................................... 13 4-3. Releasing the Test Mode .................................................. 13 4-4. Basic Operations of the Test Mode .................................. 13 4-5. Selecting the Test Mode ................................................... 14 4-6. Functions of Other Buttons .............................................. 16 4-7. Test Mode Displays .......................................................... 16 4-8. Meanings of Other Displays ............................................. 16 TABLE OF CONTENTS Power requirements For personal minidisc system: 230 V AC, 50 Hz For back-up memory: 4.5 V DC, 3 R6 (size AA) batteries For remote control: 3 V DC, 2 R6 (size AA) batteries Power consumption 26 W Dimensions (incl.projecting parts) approx. 475 X 165.5 X 249 mm (w/h/d) (18 3/4 X 6 5 ⁄8 X 9 7/8 inches ) Mass approx. 4.6 kg (10 lb. 2 oz) Supplied accessories Mains lead (1) Remote control (1) MW/LW loop aerial (1) AV connecting cord (1) Audio connecting cord (1) Design and specifications are subject to change without notice. 5. ELECTRICAL ADJUSTMENT 5-1. Tuner Section ................................................................... 17 5-2. MD section ....................................................................... 19 5-3. CD section ........................................................................ 25 6. DIAGRAMS 6-1. IC Pin Function Descriptions ........................................... 28 6-2. Block Diagrams (1/4) ....................................................... 37 6-3. Block Diagrams (2/4) ....................................................... 38 6-4. Block Diagrams (3/4) ....................................................... 39 6-5. Block Diagrams (4/4) ....................................................... 40 6-6. Printed Wiring Boards -Main Section- ............................. 41 6-7. Schematic Diagram -Main Section (1/3)- ........................ 42 6-8. Schematic Diagram -Main Section (2/3)- ........................ 43 6-9. Schematic Diagram -Main Section (3/3)- ........................ 44 6-10. Printed Wiring Boards -Power Section- ......................... 45 6-11. Printed Wiring Boards -Tuner Section- .......................... 46 6-12. Schematic Diagram -Tuner Section- .............................. 47 6-13. Printed Wiring Boards -Control Section- ....................... 48 6-14. Schematic Diagram -Control Section- ........................... 49 6-15. Printed Wiring Boards -CD Section- .............................. 50 6-16. Schematic Diagram -CD Section- .................................. 51 6-17. Printed Wiring Boards -MD Section- ............................. 52 6-18. Schematic Diagram -MD Section (1/2)- ........................ 53 6-19. Schematic Diagram -MD Section (2/2)- ........................ 54 7. EXPLODED VIEWS 7-1. Rear Cabinet Section ........................................................ 64 7-2. Front Cabinet Section ....................................................... 65 7-3. Upper Cabinet Section ..................................................... 66 7-4. Optical Pick-up Section .................................................... 67 7-5. MD Section -1 .................................................................. 68 7-6. MD Section -2 .................................................................. 69 8. ELECTRICAL PARTS LIST .................................... 70
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3 ZS-M30 1-1. 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. 1-2. NOTES ON LASER DIODE EMISSION CHECK The laser beam on this model is concentrated so as to be focused on the disc reflective surface by the objective lens in the optical pick-up block. Therefore, when checking the laser diode emis- sion,observe from more than 30 cm away from the objectivelens. 1-3. 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. 1-4. FLEXIBLE CIRCUIT BOARD REPAIRING - Keep the temperature of the soldering iron around 270 °C 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. 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 PUBLISHED BY SONY.1-6. CHECKING THE LASER DIODE AND FOCUS SEARCH OPERATION 1. Turn on the POWER and open the CD cover. 2. As shown below, push S701 (CD DOOR) with a screwdriver or other tool. 3. Press the CD button. 4. Check the objective lens to make sure that the laser diode is emitting light. If not so, the auto power control circuit or optical pickup would be damaged. Verify that the objective lens moves vertically three times for focus search. This Compact Disc player is classified as a CLASS 1 LASER product. The CLASS 1 LASER PRODUCT label is located on the bottom exterior. CAUTION Use of controls or adjustments or performance of proce- duresother than those specified herein may result in haz- ardous radiation exposure. 1-5. CHUCK PLATE JIG ON REPAIRING On repairing CD section, playing a disc without the CD lid, use Chuck Plate Jig. - Code number of Chuck Plate Jig: X-4918-255-1 Insert a precision screw driver and push SWITCH (S701) SECTION 1 SERVICE NOTE