Sony cdx m 750 service manual

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2 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. Dimensions Approx. 178 × 50 × 182 mm (7 1/8 × 2 × 7 1/4 in.) (w/h/d) Mounting dimensions Approx. 182 × 53 × 163 mm (7 1/4 × 2 1/8 × 6 1/2 in.) (w/h/d) Mass Approx. 1.5 kg (3 lb. 1 oz.) Supplied accessories Card remote commander RM-X92 (CDX-M750) RM-X95 (CDX-M700R) Parts for installation and connections (1 set) Design and specifications are subject to change without notice. Ver 1.1 2000. 08 SERVICE NOTES NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT The laser diode in the optical pick-up block may suffer electrostatic breakdown because of the potential difference generated by the charged electrostatic load, etc. on clothing and the human body. During repair, pay attention to electrostatic breakdown 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 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 emission, ob- serve from more than 30 cm away from the objective lens. 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. CAUTION Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure. If the optical pick-up block is defective, please replace the whole optical pick-up block. Never turn the semi-fixed resistor located at the side of optical pick-up block. optical pick-up bloc k semi-fixed resistor US, Canadian model: AEP/UK model: This product is classified as a CLASS 1 LASER PRODUCT. This label is located on the bottom of the chassis. This label is located on the drive unit's internal chassis. When replacing the chassis (T) of mechanism deck which have the CAUTION LABEL attached, please be sure to put a new CAUTION LABEL (3-223-913-11) to the chassis (T).

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3 TABLE OF CONTENTS 1. GENERAL Location of controls ................................................................. 4 Getting Started ......................................................................... 5 Setting the clock ...................................................................... 5 CD Player CD/MD Unit .......................................................... 6 Radio ....................................................................................... 7 RDS ......................................................................................... 9 DAB ....................................................................................... 10 DSP ........................................................................................ 11 Other Functions ..................................................................... 12 TV/Video ............................................................................... 14 Connections ........................................................................... 15 2. DISASSEMBLY 2-1. Front Panel Assy (Normal) ................................................ 22 2-2. Front Panel Assy (Inoperative) .......................................... 22 2-3. CD Mechanism Block, Flexible Board ............................. 23 2-4. Sub Panel (CD) Sub Assy ................................................. 23 2-5. Motor Block Assy, Cam (R) Assy ..................................... 24 2-6. Main Board ....................................................................... 24 2-7. Heat Sink ........................................................................... 25 2-8. Chassis (T) Sub Assy ........................................................ 25 2-9. Lever Section ..................................................................... 26 2-10. Servo Board ....................................................................... 26 2-11. Shaft Roller Assy .............................................................. 27 2-12. Floating Block Assy .......................................................... 27 2-13. Optical Pick-up Block ....................................................... 28 3. PHASE ALIGNMENT 3-1. Arm (A-L) Assy, Arm (B-L) Assy ..................................... 29 3-2. Cam (L) ............................................................................. 29 3-3. Motor Block ...................................................................... 30 3-4. Alignment between Arm (A-L) Assy and Arm (B-L) Assy .......................................................... 30 3-5. Arm (A-R) Assy, Arm (B-R) Assy .................................... 31 3-6. Cam (R) ............................................................................. 31 4. DIAGRAMS 4-1. IC Pin Descriptions ........................................................... 32 4-2. Block Diagram -“CD Section-“ ........................................... 42 4-3. Block Diagram -“Tuner Section-“ ....................................... 43 4-4. Block Diagram -“Display Section-“ .................................... 44 4-5. Circuit Boards Location .................................................... 45 4-6. Printed Wiring Boards -“CD Mechanism Section-“ ............ 46 4-7. Schematic Diagram -“CD Mechanism Section (1/2)-“ ....... 48 4-8. Schematic Diagram -“CD Mechanism Section (2/2)-“ ....... 49 4-9. Printed Wiring Boards -“Main Section-“ ............................ 50 4-10. Schematic Diagram -“Main Section (1/4)-“ ........................ 52 4-11. Schematic Diagram -“Main Section (2/4)-“ ........................ 53 4-12. Schematic Diagram -“Main Section (3/4)-“ ........................ 54 4-13. Schematic Diagram -“Main Section (4/4)-“ ........................ 55 4-14. Printed Wiring Board -“Sub Section-“ ................................ 56 4-15. Schematic Diagram -“Sub Section-“ ................................... 57 4-16. Printed Wiring Board -“Display Section-“ .......................... 58 4-17. Schematic Diagram -“Display Section-“ ............................. 59 5. EXPLODED VIEWS 5-1. Chassis Section ................................................................. 62 5-2. Front Panel Section ........................................................... 63 5-3. CD Mechanism Section (1) ............................................... 64 5-4. CD Mechanism Section (2) ............................................... 65 5-5. CD Mechanism Section (3) ............................................... 66 6. ELECTRICAL PARTS LIST ........................................ 67 Ver 1.1 2000. 08 NOTE FOR THE OPENING OF THE FRONT PANEL In this set, the front panel is lowered to below the bottom face when it is opened. When servicing the set, place it on a stand having a height of about 2 cm. stand MODEL IDENTIFICATION CDX-M700R have 3 type models. Part No. Model 3-046-061-0sTYPE1 3-046-062-0sTYPE2 3-047-828-0sTYPE3 -“ MODEL NUMBER LABEL -“ FM/MW/LW COMPACT DISC PLAYER Part No. MODEL No. CDX-M700R