Sony cfd s 27 service manual
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Extracted text from sony cfd s 27 service manual (Ocr-read)
Page 1
Ð 2 Ð NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT The laser diode in the optical pick-up block may suffer electro- static 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 SECTION 1 SERVICING NOTES TABLE OF CONTENTS Specifications ........................................................................... 1 1. SERVICING NOTES .................................................... 2 2. GENERAL Location of Controls .......................................................... 4 3. DISASSEMBLY 3-1. Cabinet (Front), Cabinet (Rear), SW Board ............... 5 3-2. BATT Board, Tuner Board, AC Inlet Board, Power Board .............................................................. 5 3-3. Cabinet (Upper) .......................................................... 6 3-4. Optical pick-up Section, Mechanism deck, Main Board, REC SW Board, CD Motor Board ....... 6 4. ADJUSTMENTS 4-1. Mechanical Adjustments ............................................ 7 4-2. Electrical Adjustments ................................................ 7 5. DIAGRAMS 5-1. Explanation of IC Terminals ..................................... 13 5-2. Block Diagram .......................................................... 15 5-3. Printed Wiring Boards (Former Type) ...................... 19 5-4. Schematic Diagram Ð Main Section (1/2) Ð (Former Type) .......................................................... 23 5-5. Schematic Diagram Ð Main Section (2/2) Ð (Former Type) .......................................................... 28 5-6. Printed Wiring Boards (New Type) .......................... 35 5-7. Schematic Diagram Ð Main Section (1/2) Ð (New Type) ............................................................... 39 5-8. Schematic Diagram Ð Main Section (2/2) Ð (New Type) ............................................................... 44 6. EXPLODED VIEWS 6-1. Front Cabinet Section ............................................... 47 6-2. Upper Cabinet Section .............................................. 48 6-3. Rear Cabinet Section ................................................ 49 6-4. Mechanism Deck Section (1) (MF-V10-117) .......... 50 6-5. Mechanism Deck Section (2) (MF-V10-117) .......... 51 6-6. Optical Pick-up Section (KSM-213CDM) ............... 52 7. ELECTRICAL PARTS LIST .................................... 53 SAFETY-RELATED COMPONENT WARNING!! COMPONENTS IDENTIFIED BY MARK ! OR DOTTED LINE WITH MARK !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. 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 procedures other than those specified herein may result in hazardous radiation exposure. Laser component in this product is capable of emitting radiation exceeding the limit for Class 1. Notice for customers in the United Kingdom A moulded plug complying with BS 1363 is fitted to this equipment for your safety and convenience. Should the fuse in the plug supplied need to be replaced, same rating fuse approved by ASTA or BS1 to BS 1362, (i.e. marked with 2 or a @ mark) must be used. pick-up block. Therefore, when checking the laser diode emission, observe more than 30 cm away from the objective lens. CHUCK PLATE JIG ON REPAIRING On repairing CD section, playing a disc without the CD lid, use Chuck Plate Jig. r Code number of Chuck Plate Jig : X-4918-255-1
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Ð 3 Ð LASER DIODE AND FOCUS SEARCH OPERATION CHECK 1. Press CD open knob. 2. Open the lid for CD. 3. Push on SWITCH (S871) as following figure. 4. Confirm the laser diode emission while observing the objecting lens. When there is no emission, Auto Power Control circuit or Optical Pick-up is broken. Objective lens moves up and down once for the focus search. Insert a precision screw driver and push SWITCH (S871) [MAIN BOARD] (Component side) [BATT BOARD] (Component side) Former Type : 1-666-263 -11 New Type : 1-666-263 -12 Former Type : 1-666-266 -11 New Type : 1-666-266 -12 Former Type : 1-666-267 -11 New Type : 1-666-267 -12 Former Type : 1-666-264 -11 New Type : 1-666-264 -12 Former Type : 1-666-265 -11 New Type : 1-666-265 -12 [AC INLET BOARD] (Component side)[POWER BOARD] (Component side)[REC SW BOARD] (Component side) Printed wiring boards and schematic diagram of former type and new type are described in this Service manual. NEW TYPE INDENTIFICATION