Sony-3M5F18C821v1-cd-sm 电路图 维修手册.pdf
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1、SERVICE MANUAL COMPACT DISC MECHANISM Ver 1.0 2002.08 9-874-104-01Sony Corporation 2002H0500-1e Vehicle Company C 2002.08Published by Sony Engineering Corporation AEP Model UK Model CDX-5F821N VERSION: DB CDX-5F821R VERSION: AB TABLE OF CONTENTS 3M5F-18C821 (CDX-5F821N/5F821R) SERVICING NOTES.2 1.DI
2、SASSEMBLY 1-1.Disassembly Flow .3 1-2.Cover (Up), Chassis Assy .4 1-3.Bracket (L), Bracket (R) .4 1-4.Chassis (T) .5 1-5.MD Board.5 1-6.Loading Motor Sub Assy (M103).6 1-7.Floating Block Assy .6 1-8.Chucking Arm Assy .7 1-9.Optical Pick-up (KSS-720A) .7 2.DIAGRAMS 2-1.Block Diagram SERVO Section .9
3、2-2.Block Diagram MAIN Section . 10 2-3.Note for Printed Wiring Boards and Schematic Diagrams . 11 2-4.Printed Wiring Boards MD (Component Side)/LED/SW Boards . 12 2-5.Printed Wiring Boards MD Board (Conductor Side) . 13 2-6.Schematic Diagram MD Board (1/4) . 14 2-7.Schematic Diagram MD Board (2/4)
4、. 15 2-8.Schematic Diagram MD Board (3/4) . 16 2-9.Schematic Diagram MD (4/4)/LED/SW Boards . 17 2-10. IC Pin Function Description . 21 3.EXPLODED VIEWS 3-1.Cover Section . 23 3-2.Chassis Section . 24 3-3.Floating Block Section. 25 4.ELECTRICAL PARTS LIST. 26 RadioFans.CN 收音机爱 好者资料库 2 3M5F-18C821 Th
5、e 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 matt
6、er 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. Ther
7、efore, when checking the laser diode emis- sion, observe from more than 30 cm away from the objective lens. When replacing the main chassis assy of mechanism deck which have the “CAUTION LABEL” attached, please be sure to put a new CAUTION LABEL (3-223-913-11) to the main chassis assy. SAFETY-RELATE
8、D 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. SERVICING
9、NOTES NOTES ON HANDLING THE OPTICAL PICK- UP BLOCK OR BASE UNIT TEST DISC This set can playback a CD-R, CD-RW for audio use. When test this set, use the following test disc. Test disc for CD-R: TCD-R082LMT (Part No.: J-2502-063-1) Test disc for CD-RW: TCD-W082L (Part No.: J-2502-063-2) Notes on chip
10、 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 C dur- ing repairing. Do not touch the soldering iron on the same cond
11、uctor of the circuit board (within 3 times). Be careful not to apply force on the conductor when soldering or unsoldering. RadioFans.CN 收音机爱 好者资料库 3 3M5F-18C821 SECTION 1 DISASSEMBLY This set can be disassembled in the order shown below. 1-1.DISASSEMBLY FLOW Note 1:The process described in can be pe
12、rformed in any order. Note 2:Without completing the process described in , the next process can not be performed. Note 3:Illustration of disassembly is omitted. SET 1-2.COVER (UP), CHASSIS ASSY (Page 4) 1-3.BRACKET (L), BRACKET (R) (Page 4) 1-4.CHASSIS (T) (Page 5) 1-5.MD BOARD (Page 5) 1-6.LOADING
13、MOTOR SUB ASSY (M103) (Page 6) 1-7.FLOATING BLOCK ASSY (Page 6) 1-8.CHUCKING ARM ASSY (Page 7) 1-9.OPTICAL PICK-UP (KSS-720A) (Page 7) RadioFans.CN 收音机爱 好者资料库 4 3M5F-18C821 Note: Follow the disassembly procedure in the numerical order given. Note: Screws and washers cannot be re-used. Please replace
14、 to brand-new ones once screws and washers are removed. 1-2.COVER (UP), CHASSIS ASSY 1-3.BRACKET (L), BRACKET (R) 1two screws (PTT2.6 6) 1two screws (PTT2.6 6) 4chassis assy 3 2cover (up) 2two screws (P2.6 4) 3bracket (L) 5bracket (R) 1connection (C1) cord (CN3) 4two screws (P2.6 4) 5 3M5F-18C821 1-
15、4.CHASSIS (T) 1-5.MD BOARD 2two screws (P2 3) 4Remove the chassis (T) in the direction of the arrow. 1Remove two solders of LED board lead wires. 3claw 1Remove two solders of loading motor sub assy (M103) lead wires. 1Remove two solders of LED board lead wires. 4Open the MD board. 3three screws 2mot
16、or flexible board (CN2) 5OP flexible board (CN1) 6MD board 6 3M5F-18C821 1-6.LOADING MOTOR SUB ASSY (M103) 1-7.FLOATING BLOCK ASSY 3Remove two solders of loading motor sub assy (M103) lead wires. 5loading motor sub assy (M103) 4two screws (P2 3) 1two screws (P2 3) 2gear (PS) assy 3two dampers 3two d
17、ampers 6two coil springs (damper) 6two coil springs (damper) lever (D) load ring 2tension spring (F/B) 1Shifting the lever (D) fully in the direction of arrow A, turn the load ring fully in the direction of arrow B. 5floating block assy 4 B A 7 3M5F-18C821 1-8.CHUCKING ARM ASSY 2extension spring (S)
18、 1extension spring (CH) 3Open the chucking arm assy. 4boss 4boss 5chucking arm assy 1-9.OPTICAL PICK-UP (KSS-720A) 5base cover, leaf spring (SL) 4screw (PS2 4) 6two screws (PS2 4) 7Open the SL driving block assy in the direction of arrow A. A C B 2screw (P2 3) 1OP flexible board 9optical pick-up (KS
19、S-720A) 8Pick up the shaft (feed) assy in the direction of arrow B and pull it out in the direction of arrow C. 3leaf spring (feed) 8 3M5F-18C821 MEMO 3M5F-18C821 99 SECTION 2 DIAGRAMS 2-1.BLOCK DIAGRAM SERVO Section RFDC SUMMING AMP AC SUM EQ IN 7 8 9 A B C D 28 20 RFDCO CE TE E F 10 11 RWSW PD 12
20、2 LD 1APC AMP RW/ROM RFAC 116, 115, 118, 117 RF CE 16 FEFE TE 109 106, 7 5, 3 1, 111 9 12, 15 19, 21, 8 2, 3, 24, 25 5 23 4 22 RAS CAS WE OE 113 119 114 120 XRAS XCAS XWE XOE VIBRATION MEMORY CONTROLLER (TE) 6 IC101 of (XTAO) 7 IC200 yg (EXTAL) Note: The components identified by mark 0 or dotted lin
21、e with mark 0 are critical for safety. Replace only with part number specified. 4 IC101 ih (LRCK), ij (LRCKI), IC501 qf (LRCKIA) 3.4 Vp-p 22.7 s 5 IC101 o; (BCK), oa (BCKI), IC501 qd (BCKIA) 4.2 Vp-p 474 ns MD board is multi-layer printed board. However, the patterns of intermediate-layer have not b
22、een in- cluded in diagram. 3M5F-18C821 1212 D1F-11 D101G-9 D200F-5 D602H-5 IC9C-4 IC101E-8 IC200E-6 IC300D-11 IC501B-6 IC502C-6 IC600G-6 IC601H-6 IC603H-7 IC604A-5 IC605G-6 Q1F-12 Q6G-12 Q7G-11 Q10G-10 Q100G-9 Q101G-8 Q402G-7 Q403G-8 Q600G-5 Q601H-7 Q603E-4 Q604D-4 Q606G-5 2-4.PRINTED WIRING BOARDS
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