Page 2 - SELF-DIAGNOSIS FUNCTION; While pressing the ENTER/YES button and
– 2 – SELF-DIAGNOSIS FUNCTION The self-diagnosis function consists of error codes for customers which are displayed automatically when errors occur, and error codes whichshow the error history in the test mode during servicing. For details on how to view error codes for the customer, refer to the fo...
Page 3 - ITEMS OF ERROR HISTORY MODE ITEMS AND CONTENTS; Selecting the Test Mode; ππππππ; Table of Error Codes
– 3 – ITEMS OF ERROR HISTORY MODE ITEMS AND CONTENTS Selecting the Test Mode Display total rec total play retry err total err err history er refresh tm refresh Details of History No error Disc error. PTOC cannot be read (DISC ejected) Disc error. UTOC error (DISC not ejected) Loading error Address c...
Page 4 - MODEL; • Abbreviation
– 4 – CAUTION Use of controls or adjustments or performance of proceduresother than those specified herein may result in hazardous ra-diation exposure. Notes on chip component replacement • Never reuse a disconnected chip component.• Notice that the minus side of a tantalum capacitor may be damaged ...
Page 6 - JIG FOR CHECKING BD BOARD WAVEFORM; VC
– 6 – SECTION 1 SERVICING NOTE JIG FOR CHECKING BD BOARD WAVEFORM The special jig (J-2501-149-A) is useful for checking the waveform of the BD board. The names of terminals and the checking items to beperformed are shown as follows. GND : GroundI+3V : For measuring IOP (Check the deterioration of th...
Page 8 - CHECKS PRIOR TO PARTS REPLACEMENT AND ADJUSTMENTS; Measure if unsatisfactory:
– 8 – • 0.9 mW power Specified value : 0.84 to 0.92 mW • 7.0 mW power Specified value : 6.8 to 7.2 mWlop (at 7mW) • Labeled on the optical pickup Iop value ± 10mA • Traverse waveform Specified value : Below 10% offset • Error rate check Specified value : For points a, b, and cC1 error : Below 220AD ...
Page 9 - FORCED RESET
– 9 – FORCED RESET The system microprocessor can be reset in the following procedure.Use these procedure when the unit cannot be operated normally due to the overrunning of the microprocessor, etc. Procedure :Short-circuit jumper wire of JW40 and JW41 (RESET). [MAIN BOARD] (Component Side) 1 3 JW40 ...
Page 10 - CLEANING OF OBJECTIVE LENS OF OPTICAL PICKUP; Using a pair of tweezers, while pulling the claw at; FLUORESCENT INDICATOR TUBE AND MECHANISM DECK
– 10 – CLEANING OF OBJECTIVE LENS OF OPTICAL PICKUP • When cleaning the objective lens of the optical pickup, move the mechanism deck using the following method. 1 If a disc is inside, eject it out. 2 Disconnect the power cord from the outlet, and set the non-conducted state. 3 Using a pair of tweez...
Page 11 - ATTACHING THE GLASS ASSEMBLY; • Attach according to steps; FLUORESCENT INDICATOR TUBE, LED COMPLETE LIGHTING CHECK
– 11 – ATTACHING THE GLASS ASSEMBLY • Attach according to steps 1 to 4 . 1 1 2 (Bottom side) 3 Bracket (shaft) 4 Screw (PTP2.6x6) When fixing this part, secure at the center to allow for some play. Open and close the glass window several times, and check that the parts do not touch each other. FLUOR...
Page 12 - SERVICING POSITION
– 12 – SERVICING POSITION 1 Remove the four screws securing the upper cover, and remove the upper cover. 2 Undo the bound cables. 3 Remove the two screws A securing the rear panel. 4 Remove the four screws B securing the transformer. 5 Remove the screw C securing the MAIN board. 6 Remove the MAIN bo...
Page 13 - RETRY CAUSE DISPLAY MODE; fl; Example
– 13 – RETRY CAUSE DISPLAY MODE • In this test mode, the causes for retry of the unit during recording can be displayed on the fluorescent indicator tube. During playback, the “track mode” for obtaining track information will be set.This is useful for locating the faulty part of the unit. • The foll...
Page 15 - Location of Parts and Controls; SECTION 2; Front Panel
– 15 – Location of Parts and Controls 1 1/u (Power) button 2 MD disk compartment 3 § button 4 CLEAR button 5 ENTER/YES button 6 VOLUME knob 7 MENU/NO button 8 ±/) button SECTION 2 GENERAL Front Panel 1 2 3 4 5 6 12 11 7 8 9 10 13 15 14 9 ≠/0 button 10 π button 11 fl button 12 CD SYNC/MD WM SYNC butt...
Page 16 - Follow the disassembly procedure in the numerical order given.
– 16 – SECTION 3 DISASSEMBLY Note: Follow the disassembly procedure in the numerical order given. 3-1. GLASS ASSY 3-2. FRONT PANEL 4 4 3 (Bottom side) 2 Bracket (shaft) 1 Screw (PTP2.6x6) 1 Two screws (BVTP3x8) 2 Connector (CN792) 4 Connector (CN793) 5 Front panel 3 Flat type wire (13core) (CN791)
Page 19 - Nn; Function name
– 19 – SECTION 4 TEST MODE 4-1. PRECAUTIONS FOR USE OF TEST MODE • As loading related operations will be performed regardless of the test mode operations being performed, be sure to check that the disc is stopped before setting and removing it.Even if the § button is pressed while the disc is rotati...
Page 20 - + knob. After selecting the group to be; Display
– 20 – 4-5. SELECTING THE TEST MODE There are 31 types of test modes as shown below. The groups can be switched by rotating the – ˜ + knob. After selecting the group to be used, press the ENTER/YES button. After setting a certain group, rotating the – ˜ + knob switches between these modes. Refer to ...
Page 21 - Contents
– 21 – “CPLAY MID” n “CPLAY OUT” n “CPLAY IN” “CPLAY MID” n “CPLAY OUT” n “CPLAY IN” 4-5-1. Operating the Continuous Playback Mode 1. Entering the continuous playback mode 1 Set the disc in the unit. (Whichever recordable discs or discs for playback only are available.) 2 Rotate the – ˜ + knob and d...
Page 22 - MEANINGS OF OTHER DISPLAYS; Displays the error rate in the following way.; Note: “–” is displayed when servo is not imposed.; Mode display
– 22 – P SYNC LEVEL-SYNC OVER REPEAT 1 TRACK DISC DATE MONO When Off Contents Display When Lit During continuous playback (CLV: ON) Tracking servo OFF CLV low speed mode ABCD adjustment completed Tracking offset cancel ON Tracking auto gain OK Focus auto gain OK Pit High reflection CLV-S CLV LOCK ¢ ...
Page 23 - SECTION 5
– 23 – 5-1. PARTS REPLACEMENT AND ADJUSTMENT • Check and adjust the MDM and MBU as follows. The procedure changes according to the part replaced SECTION 5 ELECTRICAL ADJUSTMENTS • Abbreviation OP : Optical pick-up OWH: Overwrite head • Temperature compensation offset check• Laser power check• Traver...
Page 24 - Optical pick-up flexible board; Optical
– 24 – 5-2. PRECAUTIONS FOR CHECKING LASER DIODE EMISSINON To check the emission of the laser diode during adjustments, neverview directly from the top as this may lose your eye-sight. 5-3. PRECAUTIONS FOR USE OF OPTICAL PICK- UP (KMS-260A) As the laser diode in the optical pick-up is easily damaged...
Page 27 - Note : Do not perform the emission with 7.0 mW more than 15
– 27 – 5-7. INITIAL SETTING OF ADJUSTMENT VALUE Note:Mode which sets the adjustment results recorded in the non-volatilememory to the initial setting value. However the results of thetemperature compensation offset adjustment will not change to theinitial setting value.If initial setting is performe...
Page 30 - Note 1 : If the C1 error and ADER are above other than the specified; ADJUSTMENT
– 30 – 5-13. ERROR RATE CHECK 5-13-1. CD Error Rate Check Checking Procedure :1. Load a check disc (MD) TDYS-1.2. Rotate the – ˜ + knob and display “CPLAY MODE”. 3. Press the ENTER/YES button twice and display “CPLAY MID”.4. The display changes to “C1 = AD = ”. 5. Check that the C1 error rate is bel...
Page 31 - -15. ADJUSTING POINTS AND CONNECTING POINTS
– 31 – NOTE:It is useful to use the jig. for checking the waveform. (Refer to Servicing Note on page 6.) 5-15. ADJUSTING POINTS AND CONNECTING POINTS [BD BOARD] (SIDE A) [BD BOARD] (SIDE B) CN110 NOTE D101 I+3VIOP TE RF VC GND IC171 IC121 IC101 IC192 CN101
Page 33 - – BD SECTION –; OPTICAL PICK-UP BLOCK
MDS-SD1 – 33 – – 34 – 6-2. BLOCK DIAGRAMS – BD SECTION – HR901 OVER WRITE HEAD HEAD DRIVE Q181,182 3 6 1 2 FILTER PCO FILI FILO CLTV PLL EFM, ACIRC, ENCODER/ DECODER RF AGC & EQ AGCI RFO MORFI MORFO RF AMP 1 2 BPF P-P AT AMP BPF ADAGC VC ANALOG MUX 27 16 17 18 SERIAL PARALLEL DECODER VICONV 20 2...
Page 34 - – MAIN SECTION –
MDS-SD1 – 35 – – 36 – – MAIN SECTION – 1 27 73 72 17 16 18 12 19 4 6 2 26 8 14 13 24 15 80 79 75 78 82 81 35 37 36 58 63 66 53 51 59 57 74 60 54 65 67 88 56 55 77 87 69 22 12 1 49 100 19 45 29 15 13 44 43 1 3 30 12 38 39 31 95 97 18 34 33 50 5 6 8 7 1 4 DIN0 DIN1 DOUT ADDT BCK LRCK DADT 512FS SCTX X...
Page 35 - For schematic diagrams.; Note: The components identified by mark; • Indication of transistor; These are omitted; – DISPLAY SECTION –
MDS-SD1 – 37 – – 38 – WAVEFORMS– BD (1/2) SECTION – – MAIN SECTION – THIS NOTE IS COMMON FOR PRINTED WIRINGBOARDS AND SCHEMATIC DIAGRAMS.(In addition to this, the necessary note is printedin each block.) For schematic diagrams. Note:• All capacitors are in µF unless otherwise noted. pF: µµF 50 WV or...
Page 36 - • See page 32 for Circuit Boards Location.; • Semiconductor; • Semiconductor
MDS-SD1 6-3. PRINTED WIRING BOARD – BD SECTION – • See page 32 for Circuit Boards Location. – 39 – – 40 – D101 A-1 D181 D-3 D183 D-3 IC103 B-1 IC123 D-2 IC171 D-1 Q102 B-1 Q103 B-1 Q104 B-1 IC101 A-3 IC121 C-3 IC124 C-3 IC152 B-1 IC181 C-1 IC192 D-1 Q101 B-3 Q162 B-3 Q163 B-3 Q181 C-1 Q182 C-2 Ref. ...
Page 41 - -8. PRINTED WIRING BOARD – MAIN SECTION –
MDS-SD1 – 49 – – 50 – • Semiconductor Location 6-8. PRINTED WIRING BOARD – MAIN SECTION – • See page 32 for Circuit Boards Location. Ref. No. Location D172 C-1 D173 C-1 D811 D-5 D812 D-5 D815 D-6 D816 D-6 D821 C-4 D823 B-4 D824 B-3 D831 E-6 D832 E-5 D833 E-6 D851 D-7 D852 D-7 D861 D-6 IC101 B-1 IC20...
Page 42 - • See page 38 for Waveforms.
MDS-SD1 – 51 – – 52 – 6-9. SCHEMATIC DIAGRAM – PANEL SECTION – • See page 38 for Waveforms. (Page 47) 470p DTC143TKA-T146 DTC144EKA-T146 DTC144EKA-T146
Page 47 - – BD Section –
– 61 – 6-17. IC BLOCK DIAGRAMS – BD Section – IC101 CXA2523AR –1 –2 + – IVR BB + – IVR AA + – IVR CC + – IVR DD + – IVR + – EE EE' EFB TESW PTGR 48 MORFO 47 MORFI 46 RFO 45 OPN 44 OPO 43 ADDC 42 COMPP 41 COMPO 40 AGCI 39 RF AGC 38 RF 37 PEAK 36 BOTM 35 ABCD 34 FE 33 AUX 32 ADFG 31 ADAGC 30 ADIN 29 A...
Page 48 - – MAIN Section –
– 62 – IC152 BH6511FS-E2 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 GND VG IN4R IN4F VM4 OUT4F PGND4 OUT4R VM34 OUT3R PGND3 OUT3F VM3 IN3F IN3R PSB CAPA– CAPA+ IN2R IN2F VM2 OUT2F PGND2 OUT2R VM12 OUT1R PGND1 OUT1F VM1 IN1F IN1R V DD CHARGE PUMP. OSC INTER...
Page 49 - – CONNECTOR Section –
– 63 – – CONNECTOR Section – IC822 M62016FP-E1 IC774 P82B715TD.118 +– +– 3 4 5 6 2 8 7 1 VCC NC NC NC RESET GND CD INT INTERRUPT SIGNAL GENERATOR RESET SIGNAL GENERATOR COM R1 R2 R3 R4 COM IC851 M5293L 2 5 5k + – 27k OVERCURRENT LIMITTER OVERHEAT PROTECTION REFERENCE VOLTAGE GND ON/OFF IN REFERENCEV...
Page 53 - Description
– 67 – SECTION 7 EXPLODED VIEWS 7-1. CASE AND BACK PANEL SECTION NOTE: • Items marked “*” are not stocked since they are seldom required for routine service. Some delayshould be anticipated when ordering these items. • The mechanical parts with no reference number in the exploded views are not suppl...
Page 57 - BD
– 71 – • SEMICONDUCTORS In each case, u: µ , for example:uA...: µ A..., uPA...: µ PA..., uPB...: µ PB...,uPC...: µ PC..., uPD...: µ PD... • CAPACITORS uF : µ F • COILS uH : µ H • Abbreviation HK : Hong Kong model SP : Singapore model • Due to standardization, replacements in the parts list may be di...
Page 59 - ENCODER; CONNECTOR
– 73 – ENCODER Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C792 1-163-121-00 CERAMIC CHIP 150PF 5% 50V < CONNECTOR > * CN771 1-568-832-11 SOCKET, CONNECTOR 13P < GROUND TERMINAL > * EPT771 1-537-738-21 TERMINAL, EARTH < FERRITE BEAD > FB771 1-500-445-2...
Page 60 - MAIN; The components identified by mark
– 74 – Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark MAIN C503 1-163-038-91 CERAMIC CHIP 0.1uF 25V C504 1-163-121-00 CERAMIC CHIP 150PF 5% 50V C505 1-163-121-00 CERAMIC CHIP 150PF 5% 50V C506 1-163-038-91 CERAMIC CHIP 0.1uF 25V C507 1-163-038-91 CERAMIC CHIP 0.1uF 25V C50...
Page 62 - PANEL; PANEL SW
– 76 – The components identified by mark ! or dotted line with mark ! are critical for safety. Replace only with part number specified. Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark PANEL SW * A-4724-619-A PANEL BOARD, COMPLETE ********************* < CAPACITOR > C9...
Page 64 - Sony Corporation; Home A&V Products Company
– 78 – Sony Corporation Home A&V Products Company 9-922-970-11 98L0953-1 Printed in Japan © 1998. 12 Published by Quality Assurance Dept. (Shibaura) MDS-SD1
