Sony MDS-S50 - Md Player Service Manual
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Sony MDS-S50 - Md Player Service Manual

Service manual
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SERVICE MANUAL
Ver 1.0 2001.02
US and foreign patents licensed from Dolby
Laboratories.
System
Disc
Laser
Laser output
1)
This output is the value measured at a distance of
200 mm from the objective lens surface on the
Optical Pick-up Block with 7 mm aperture.
Laser diode
Revolutions (CLV)
Error correction
Sampling frequency
Coding
Modulation system
Number of channels
Frequency response
Signal-to-noise ratio
Wow and flutter
Inputs
ANALOG IN
DIGITAL IN
Sony Corporation
9-929-257-11
2001B0500-1
Audio Entertainment Group
C 2001.2
General Engineering Dept.
Photo: Gray model
SPECIFICATIONS
Outputs
MiniDisc digital audio
system
PHONES
MiniDisc
Semiconductor laser ( =
780 nm) Emission
ANALOG OUT
duration: continuous
1)
MAX 44.6 W
General
Material: GaAlAs
400 rpm to 900 rpm
Power requirements
ACIRC (Advanced Cross
US and Canadian models: 120 V AC, 60Hz
Interleave Reed Solomon
AEP, UK models:
Code)
Australian models:
44.1 kHz
Hong Kong models:
ATRAC (Adaptive
Other models:
TRansform Acoustic
Coding)/ATRAC 3
EFM (Eight-to-Fourteen
Modulation)
Power consumption
2 stereo channels
Dimensions (approx.)
5 to 20,000 Hz 0.3 dB
Over 96 dB during play
Below measurable limit
Mass (approx.)
Supplied accessories
Jack type: phono
Audio connecting cords (2)
Impedance: 47 kilohms
Optical cable (1)
Rated input: 500 mVrms
Remote commander (remote) (1)
Minimum input:
R6 (size-AA) batteries (2)
125 mVrms
Connector type: square
Design and specifications are subject to change
optical
without notice.
Impedance: 660 nm
(optical wave length)
MDS-S50
Canadian Model
Australian Model
Model Name Using Similar Mechanism
MD Mechanism Type
Optical Pick-up Name
Jack type: stereo phone
Rated output: 10 mW
Load impedance: 32 ohms
Jack type: phono
Rated output: 2 Vrms (at
50 kilohms)
Load impedance: over 10
kilohms
230 V AC, 50/60Hz
240 V AC, 50/60Hz
220-240 V AC, 50/60Hz
110-120/220-240 V AC,
50/60Hz
Adjustable with voltage
selector
15 W
280
84.5
290 mm (w/
h/d) incl. projecting parts
and controls
2.4 kg
MINIDISC DECK
US Model
AEP Model
UK Model
E Model
NEW
MDM-7A
KMS-260B

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  • Page 1 R6 (size-AA) batteries (2) 125 mVrms DIGITAL IN Connector type: square Design and specifications are subject to change optical without notice. Impedance: 660 nm (optical wave length) MINIDISC DECK Sony Corporation 9-929-257-11 2001B0500-1 Audio Entertainment Group C 2001.2 General Engineering Dept.

  • Page 2: Self-Diagnosis Function

    If the code and message alternate, find them in the following table and perform the indicated countermeasure. Should the problem persist, consult your nearest Sony dealer. C11/Protected , Take out the MD and close the record-protect slot.
  • Page 3 MDS-S50 ITEMS OF ERROR HISTORY MODE ITEMS AND CONTENTS Display Details of History op rec tm Cumulative recording time is displayed. When cumulative recording time is over 1 minute, the hour and minute are displayed as they are. When it is under 1 minute, “Under 1 min” is displayed. The displayed time is the total time the laser is set to the high power state.
  • Page 4 MDS-S50 Table of Error Codes Error Code Details of Error Loading failed Loading switch combination is illegal Head of PTOC could not be read within the specified time Head of PTOC could be read but its content is erroneous Access to UTOC could not be made within the specified time UTOC could be not read within the specified time...

  • Page 5: Table Of Contents

    SUR LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE REMPLACER CES COM- POSANTS QUE PAR DES PIÈCES SONY DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.
  • Page 6 MDS-S50 Notes on chip component replacement CAUTION • Never reuse a disconnected chip component. Danger of explosion if battery is incorrectly replaced. • Notice that the minus side of a tantalum capacitor may be dam- Replace only with the same or equivalent type recommended by aged by heat.

  • Page 7: Servicing Notes

    MDS-S50 SECTION 1 SERVICING NOTES MODEL IDENTIFICATION NOTES ON HANDLING THE OPTICAL PICK-UP — BACK PANEL — BLOCK OR BASE UNIT Part No. 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.
  • Page 8 MDS-S50 JIG FOR CHECKING BD BOARD WAVEFORM The special jig (J-2501-196-A) is useful for checking the waveform of the BD board. The names of terminals and the checking items to be performed are shown as follows. I+3V : For measuring IOP (Check the deterioration of the optical pick-up laser) IOP : For measuring IOP (Check the deterioration of the optical pick-up laser) GND : Ground : Tracking error signal (Traverse adjustment)
  • Page 9 MDS-S50 IOP DATA RECORDING AND DISPLAY WHEN OPTICAL PICK-UP AND NON-VOLATILE MEMORY (IC195 OF BD BOARD) ARE REPLACED The IOP value labeled on the optical pick-up can be recorded in the non-volatile memory. By recording the value, it will eliminate the need to look at the value on the label of the optical pick-up.
  • Page 10 MDS-S50 RETRY CAUSE DISPLAY MODE IN MD • In this test mode, the causes for retry of the unit during recording and stop can be displayed on the liquid crystal display. During playback, the “track mode” for obtaining track information will be set. This is useful for locating the faulty part of the unit.
  • Page 11 MDS-S50 Reading the Retry Cause Display Higher Bits Lower Bits Hexa- Details Hexadecimal decimal When 0 When 1 b7 b6 b5 b4 b3 b2 b1 b0 Binary Emphasis OFF Emphasis ON Monaural Stereo This is 2-bit display. Normally 01. 01: Normal audio. Others: Invalid Audio (Normal) Invalid Original...

  • Page 12: General

    MDS-S50 SECTION 2 This section is extracted from instruction manual. GENERAL LOCATION OF CONTROLS – Front Panel – AMS qf (8) (10) (12) (13) (24) PHONE LEVEL w; (17) BUTTON DESCRIPTIONS CLEAR qd (18) (24) PHONES jack ql (17) Display qg (8) (17) PLAY MODE 4 (16) ?/1 (power)/STANDBY indicator INPUT qj (8)

  • Page 13: Remote Control

    MDS-S50 Remote control AyB qs (16) CD PLAYER . (go back)/> (go forward) ql (15) CD-SYNCHRO STANDBY/START/STOP 7 (14) (15) CLEAR 6 (18) (24) DISPLAY ws (8) (12) FADER 3 (28) INPUT wf (8) Letter/number buttons 5 (17) (25) LEVEL +/– qa (12) MENU/NO w;...

  • Page 14: Disassembly

    MDS-S50 SECTION 3 DISASSEMBLY • This set can be disassembled in the order shown below. 3-1. DISASSEMBLY FLOW 3-2. CASE (Page 15) 3-3. MD MECHANISM DECK (MDM-7A) (Page 15) 3-4. MAIN BOARD 3-5. BD BOARD (Page 16) (Page 16)

  • Page 15: Case

    MDS-S50 Note: Follow the disassembly procedure in the numerical order given. 3-2. CASE 2 case 1 two screws (case 3 TP2) 1 two screws (case 3 TP2) 3-3. MD MECHANISM DECK (MDM-7A) 3 four screws (BVTTWH M3) 1 wire (flat type) (23 core) (CN400) 1 wire (flat type) (27 core) (CN1)

  • Page 16: Main Board

    MDS-S50 3-4. MAIN BOARD 2 connector (CN902) 1 wire (flat type) (20 core) (CN490) 4 two screws (BVTP3 5 MAIN board 1 wire (flat type) (23 core) (CN400) 1 wire (flat type) (27 core) (CN1) 3 six screws (BVTP3 3-5. BD BOARD BD board –...

  • Page 17: Test Mode

    MDS-S50 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 rotating during continuous playback, continuous recording, etc., the disc will not stop rotating.

  • Page 18: Selecting The Test Mode

    MDS-S50 4-5. SELECTING THE TEST MODE There are 26 types of test modes as shown below. The groups can be switched by turning the knob. After selecting the > [YES] group to be used, press the button. After setting a certain group, turning the >...
  • Page 19 MDS-S50 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) Turn the > knob to display “CPLAY1MODE” (C34). [YES] (3) Press the button to change the display to “CPLAY1MID”.
  • Page 20 MDS-S50 4-7. TEST MODE DISPLAYS [LEVEL/DISPLAY/CHAR] Each time the button is pressed, the display changes in the following order. When CPLAY or CREC are started, the display will forcibly be switched to the error rate display as the initial mode. 1.
  • Page 21 MDS-S50 4-8. AUTOMATIC SELF-DIAGNOSIS FUNCTION This test mode performs CREC and CPLAY automatically for mainly checking the characteristics of the optical pick-up. To perform this test mode, the laser power must first be checked. Perform AUTO CHECK after the laser power check and Iop Compare. Procedure: 1.

  • Page 22: Electrical Adjustments

    MDS-S50 SECTION 5 ELECTRICAL ADJUSTMENTS 5-1. PARTS REPLACEMENT AND ADJUSTMENTS If malfunctions caused by optical pick-up such as sound skipping are suspected, follow the following check. Check before replacement Start 5-6-2. Laser Power Check (See page 25) 5-6-3. Iop Compare (See page 25) 5-6-4.
  • Page 23 MDS-S50 Adjustment flow • Abbreviation Start OP: optical pick-up After turning off and then on the power, initialize the EEPROM Replace IC195 For details, refer to “WHEN MEMORY NG IS DIS- PLAYED” in 1. SERVICING NOTES (See page 9) 5-7. INITIAL SETTING OF ADJUSTMENT VALUE Replace OP or IC195 (See page 28) 5-9.
  • Page 24 MDS-S50 5-2. PRECAUTIONS FOR CHECKING LASER 5. When observing several signals on the oscilloscope, etc., make sure that VC and ground do not connect inside the oscil- DIODE EMISSION loscope. To check the emission of the laser diode during adjustments, never (VC and ground will become short-circuited) view directly from the top as this may lose your eye-sight.
  • Page 25 MDS-S50 5-5. USING THE CONTINUOUSLY RECORDED Procedure: 1. Set the laser power meter on the objective lens of the optical DISC p i c k - u p . ( W h e n i t c a n n o t b e s e t p ro p e r ly, press This disc is used in focus bias adjustment and error rate check.
  • Page 26 MDS-S50 5-6-6. Traverse Check 5-6-4. Auto Check This test mode performs CREC and CPLAY automatically for mainly checking the characteristics of the optical pick-up. To Note 1:Data will be erased during MO reading if a recorded disc is used in this adjustment. perform this test mode, the laser power must first be checked.
  • Page 27 MDS-S50 [YES] 9. Press the button to display “EFB = MO-P”. 5-6-7. Focus Bias Check Then, the optical pick-up moves to the pit area automatically Change the focus bias and check the focus tolerance amount. and servo is imposed. Procedure: 10.
  • Page 28 MDS-S50 5-7. INITIAL SETTING OF ADJUSTMENT VALUE 5-9. TEMPERATURE COMPENSATION OFFSET ADJUSTMENT Note: Save the temperature data at that time in the non-volatile memory Mode which sets the adjustment results recorded in the non-volatile as 25 ˚C reference data. memory to the initial setting value. However the results of the tempera- Note: ture compensation offset adjustment will not change to the initial setting 1.
  • Page 29 MDS-S50 6. Turn the knob so that the reading of the laser 4. After “Complete!” is displayed momentarily, the display changes > [YES] power meter becomes 6.9 to 7.1 mW, press the button to “Iop 7.0mW”. [YES] to save it. (“LD SAVE $ ”...
  • Page 30 MDS-S50 [YES] 8. Turn the knob so that the waveform of the 18. Press the button, display “EFB = SAVE” for a mo- > oscilloscope becomes the specified value. ment and save the adjustment results in the non-volatile (When the >...
  • Page 31 MDS-S50 5-14. ERROR RATE CHECK 5-16. AUTO GAIN CONTROL OUTPUT LEVEL ADJUSTMENT 5-14-1. CD Error Rate Check Be sure to perform this adjustment when the optical pick-up is Procedure: replaced. 1. Load the check disc (TDYS-1). If the adjustment results becomes “Adjust NG!”, the optical pick- 2.
  • Page 32 MDS-S50 Adjustment and checking Loacation: – BD BOARD (Component Side) – D101 CN101 – BD BOARD (Conductor Side) – IC101 CN105 1. I+3V 2. IOP 3. GND 4. TE 5. FE 6. VC 7. RF IC151 IC190 Note: It is useful to use the jig for checking BD board waveform. (Refer to Servicing Notes on page 8)

  • Page 33: Diagrams

    MDS-S50 SECTION 6 DIAGRAMS DIGITAL SIGNAL PROCESSOR, EFM/ACIRC ENCODER/DECODER, 6-1. BLOCK DIAGRAM – SERVO Section – SHOCK PROOF MEMORY CONTROLLER, IC151 (1/2) ATRAC ENCODER/DECODER (Page 34) IC151 (1/2) OVER WRITE EFMO ADDT ADDT HEAD DRIVE IC181, Q181, 182 DATAI DATA SAMPLING HR901 FILI...

  • Page 34: Block Diagram - Main Section

    MDS-S50 6-2. BLOCK DIAGRAM – MAIN Section – A/D, D/A CONVERTER IC500 J150 SIGNAL PATH AINL HIGH-PASS FILTER, LINE ADDT SUB- : PLAY (ANALOG OUT) SDTO ANALOG DIGITAL CONVERTER TRACKTION AINR ATTENUATOR BLOCK IC350 : REC (ANALOG IN) (Page 33) AOUTL+ LOW-PASS AUDIO...

  • Page 35: Note For Printed Wiring Boards And Schematic Diagrams

    MDS-S50 6-3. NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS Note on Printed Wiring Board: Note on Schematic Diagram: • X : parts extracted from the component side. • All capacitors are in F unless otherwise noted. pF: • Y : parts extracted from the conductor side. 50 WV or less are not indicated except for electrolytics •...
  • Page 36 MDS-S50 • Circuit Boards Location VOL SEL board (Brazilian, Singapore) PT board MAIN board POWER SW board DISPLAY board BD board...

  • Page 37: Printed Wiring Boards - Bd Board

    MDS-S50 6-4. PRINTED WIRING BOARDS – BD Board – • See page 36 for Circuit Boards Location. BD BOARD FLEXIBLE BOARD BD BOARD (CONDUCTOR SIDE) (COMPONENT SIDE) S102-2 PROTECT (LOADING) –2 DETECT –1 S102-1 REFLECT RATE DETECT (PACK OUT) TEST PLAY POSITION POSITION...

  • Page 38: Schematic Diagram - Bd Board (1/2)

    MDS-S50 6-5. SCHEMATIC DIAGRAM – BD Board (1/2) – • • See page 48 for Waveforms. See page 48 for IC Block Diagrams. (Page (Page (Page The components identified by mark 0 or dotted Les composants identifiés par une marque 0 sont line with mark 0 are critical for safety.

  • Page 39: Schematic Diagram - Bd Board (2/2)

    MDS-S50 6-6. SCHEMATIC DIAGRAM – BD Board (2/2) – • • See page 48 for Waveforms. See page 48 for IC Block Diagram. (Page 38) (Page 42) (Page 38) (Page 43) (Page 38)

  • Page 40: Printed Wiring Board - Main Board (Component Side)

    MDS-S50 6-7. PRINTED WIRING BOARD – MAIN Board (Component Side) – • See page 36 for Circuit Boards Location. (Page 46) • Semiconductor Location Ref. No. Location D155 F-15 D156 F-15 D255 F-15 D256 F-15 D401 D402 D403 D404 EXCEPT D412 US, CND D421...

  • Page 41: Printed Wiring Board - Main Board (Conductor Side)

    MDS-S50 6-8. PRINTED WIRING BOARD – MAIN Board (Conductor Side) – • See page 36 for Circuit Boards Location. ANALOG (EXCEPT US, CND) DIGITAL IN • Semiconductor Location Ref. No. Location D461 D462 D471 D472 D476 D477 D481 IC400 IC440 IC480 IC611 A-10...

  • Page 42: Schematic Diagram - Main Board (1/3)

    6-9. SCHEMATIC DIAGRAM – MAIN Board (1/3) – • See page 48 for Waveform. MDS-S50 (Page (Page (Page (Page 44) (Page 47)

  • Page 43: Schematic Diagram - Main Board (2/3)

    MDS-S50 6-10. SCHEMATIC DIAGRAM – MAIN Board (2/3) – • • See page 48 for Waveforms. See page 48 for IC Block Diagram. (Page (Page 42) (Page 44)

  • Page 44: Schematic Diagram - Main (3/3)/Pt/Vol Sel Boards

    MDS-S50 6-11. SCHEMATIC DIAGRAM – MAIN (3/3)/PT/VOL SEL Boards – • See page 48 for IC Block Diagrams. (Page 43) (Page 42) (Page 42) The components identified by mark 0 or dotted Les composants identifiés par une marque 0 sont line with mark 0 are critical for safety.

  • Page 45: Printed Wiring Boards - Pt/Vol Sel Boards

    6-12. PRINTED WIRING BOARDS – PT/VOL SEL Boards – • See page 36 for Circuit Boards Location. MDS-S50 (SP, BR) VOL SEL BOARD S951 VOLTAGE 110V – 120V 220V – 240V SELECTOR LINE FILTER EXCEPT SP, BR (SP, BR) (Page 41)

  • Page 46: Printed Wiring Boards - Display/Power Sw Boards

    MDS-S50 6-13. PRINTED WIRING BOARDS – DISPLAY/POWER SW Boards – • See page 36 for Circuit Boards Location. S701 – 705, S711 – 715 (EXCEPT US, CND) (Page 40) • Semiconductor Location (EXCEPT US, CND) L793 Ref. No. Location D751 (US, CND) D775 L793...

  • Page 47: Schematic Diagram - Display/Power Sw Boards

    6-14. SCHEMATIC DIAGRAM – DISPLAY/POWER SW Boards – • See page 48 for Waveform. MDS-S50 (Page...
  • Page 48 MDS-S50 Waveforms • IC Block Diagrams – BD Board – – BD Board – 1 IC101 1 (I), 2 (J) (MD Play mode) 6 IC151 wk (XBCK) 3 IC500 9 (XTI) IC101 CXA2523AR 43 42 USROP – RF AGC 1.4 Vp-p 4.4 Vp-p 0.5 Vp-p –...
  • Page 49 MDS-S50 IC141 BH6511FS INTERFACE INTERFACE CHARGE PREDRIVE PREDRIVE PUMP. PREDRIVE PREDRIVE INTERFACE INTERFACE IC151 CXD2662R 100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76 SPINDLE GENERATOR SERVO...
  • Page 50 MDS-S50 – MAIN Board – IC400 LA5643 IC440 LB1641 T.S.D O.C.P MOTOR MOTOR – DRIVE DRIVE STBY ANA5 – FWD/REV/STOP SYS3.3 CONTROL LOGIC – – 3.3V B.BAK IC480 M5293L – DELAY P. DOWN CIRCUIT REFERENCE VOLTAGE – DELAY S. RESET CIRCUIT VREF REFERENCE...

  • Page 51: Ic Pin Function Description

    MDS-S50 6-15. IC PIN FUNCTION DESCRIPTION BD BOARD IC101 CXA2523AR (RF AMP, FOCUS/TRACKING ERROR AMP) Pin No. Pin Name Description I-V converted RF signal I input from the optical pick-up block detector I-V converted RF signal J input from the optical pick-up block detector Middle point voltage (+1.65V) generation output terminal 4 to 9 A to F...
  • Page 52 MDS-S50 BD BOARD IC151 CXD2662R (DIGITAL SIGNAL PROCESSOR, DIGITAL SERVO SIGNAL PROCESSOR, EFM/ACIRC ENCODER/DECODER, SHOCK PROOF MEMORY CONTROLLER, ATRAC ENCODER/DECODER) Pin No. Pin Name Description Focus OK signal output terminal “H” is output when focus is on (“L”: NG) MNT0 (FOK) Not used (open) MNT1 (SHOCK) Track jump detection signal output to the system controller (IC1)
  • Page 53 MDS-S50 Pin No. Pin Name Description Two-way data bus with the D-RAM (IC153) MVCI I (S) Digital in PLL oscillation input from the external VCO Not used (fixed at “L”) ASYO Playback EFM full-swing output terminal ASYI I (A) Playback EFM asymmetry comparator voltage input terminal AVDD —...
  • Page 54 MDS-S50 Pin No. Pin Name Description SPFD Spindle servo drive PWM signal (+) output to the BH6511FS (IC141) I (S) FGIN TEST1 Input terminal for the test (fixed at “L”) TEST2 TEST3 DVSS — Ground terminal (digital system) EFMO EFM signal output terminal when recording mode * I (S) stands for schmitt input, I (A) for analog input, O (3) for 3-state output, and O (A) for analog output in the column I/O.
  • Page 55 MDS-S50 MAIN BOARD IC1 M30805MG-211GP (SYSTEM CONTROLLER) Pin No. Pin Name Description FL-DATA Serial data output to the fluorescent indicator tube/LED driver (IC761) FL-CLK Serial data transfer clock signal output to the fluorescent indicator tube/LED driver (IC761) A1 IN Sircs remote control signal input terminal of the CONTROL A1II Not used (fixed at “H”) Remote control signal input from the remote control receiver (IC781) 5 to 7 Not used (open)
  • Page 56 MDS-S50 Pin No. Pin Name Description XINT Interrupt status input from the CXD2662R (IC151) Beep sound drive signal output BEEP Headphone muting on/off control signal output “L”: muting on, “H”: muting off (Used for the except US and Canadian model) LRCKI L/R sampling clock signal (44.1 kHz) output to the CXD2662R (IC151) Laser power selection signal output to the CXD2662R (IC151) and HF module switch circuit...
  • Page 57 MDS-S50 Pin No. Pin Name Description — Ground terminal 77 to 85 A17 to A9 Address signal output to the flash memory Not used (open) 86 to 89 SEL1 to SEL4 Not used (open) Writing protect signal output to the flash memory “L” active Not used (fixed at “L”) —...

  • Page 58: Exploded Views

    MDS-S50 SECTION 7 EXPLODED VIEWS NOTE: • -XX and -X mean standardized parts, so they • Items marked “*” are not stocked since they The components identified by mark 0 or dotted line with mark 0 are may have some difference from the original are seldom required for routine service.

  • Page 59: Front Panel Section

    MDS-S50 7-2. FRONT PANEL SECTION not supplied not supplied Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark X-4953-294-3 PANEL ASSY, FRONT (AR) 4-951-620-01 SCREW (2.6X8), +BVTP X-4953-579-3 PANEL ASSY, FRONT (BR, SP, HK, AUS) 1-678-517-11 POWER SW BOARD X-4953-580-3 PANEL ASSY, FRONT (US, CND) A-4725-597-A DISPLAY BOARD, COMPLETE (US, CND) X-4953-729-2 PANEL ASSY, FRONT (AEP, UK)

  • Page 60: Mechanism Deck Section-1 (Mdm-7A)

    MDS-S50 7-3. MECHANISM DECK SECTION-1 (MDM-7A) supplied Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark * 201 4-996-267-01 BASE (BU-D) 4-227-012-01 SPRING (HOLDER), TENSION 4-908-618-21 SCREW (BTP) (2X6) 4-227-019-03 PLATE (HOLDER) ASSY, RETAINER 4-227-007-01 GEAR (SB) 4-227-013-01 SPRING (EJ), TENSION 4-227-025-01 BELT (LOADING) 4-226-995-01 SLIDER (EJ)

  • Page 61: Mechanism Deck Section-2 (Mdm-7A)

    MDS-S50 7-4. MECHANISM DECK SECTION-2 (MDM-7A) HR901 S102 M101 M102 M103 The components identified by Les composants identifiés par une mark 0 or dotted line with marque 0 sont critiques pour la mark 0 are critical for safety. sécurité. Replace only with part num- Ne les remplacer que par une pièce ber specified.

  • Page 62: Electrical Parts List

    MDS-S50 SECTION 8 ELECTRICAL PARTS LIST NOTE: • Due to standardization, replacements in the • Items marked “*” are not stocked since they The components identified by mark 0 or dotted line with mark parts list may be different from the parts speci- are seldom required for routine service.
  • Page 63 MDS-S50 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark IC151 8-752-404-64 IC CXD2662R R109 1-216-845-11 METAL CHIP 100K 1/16W IC153 8-759-671-27 IC MSM51V4400E-70TS-K R110 1-216-845-11 METAL CHIP 100K 1/16W IC171 8-759-096-87 IC TC7WU04FU (TE12R) R111 1-216-833-11 METAL CHIP 1/16W IC181 8-759-481-17 IC MC74ACT08DTR2...
  • Page 64 MDS-S50 DISPLAY MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R195 1-216-833-11 METAL CHIP 1/16W R713 1-247-843-11 CARBON 3.3K 1/4W R196 1-216-833-11 METAL CHIP 1/16W R714 1-249-425-11 CARBON 4.7K 1/4W R197 1-216-833-11 METAL CHIP 1/16W R715 1-249-429-11 CARBON 1/4W...
  • Page 65 MDS-S50 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C271 1-137-368-11 MYLAR 0.0047uF 5% C554 1-164-156-11 CERAMIC CHIP 0.1uF C272 1-130-471-00 MYLAR 0.001uF C557 1-164-156-11 CERAMIC CHIP 0.1uF (US, CND) C276 1-128-551-11 ELECT 22uF C558 1-164-156-11 CERAMIC CHIP 0.1uF C277...
  • Page 66 MDS-S50 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 1-216-864-11 METAL CHIP 1/16W < IC > (EXCEPT US, CND) 1-216-864-11 METAL CHIP 1/16W 8-759-832-38 IC M30805MG-211GP 1-216-864-11 METAL CHIP 1/16W IC160 8-759-710-97 IC NJM4565M-D IC260 8-759-710-97 IC NJM4565M-D 1-216-864-11 METAL CHIP 1/16W...
  • Page 67 MDS-S50 MAIN POWER SW Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R265 1-218-724-11 METAL CHIP 0.5% 1/16W R831 1-216-864-11 METAL CHIP 1/16W R266 1-218-724-11 METAL CHIP 0.5% 1/16W (EXCEPT US, CND) R271 1-216-823-11 METAL CHIP 1.5K 1/16W R851...
  • Page 68 MDS-S50 POWER SW VOL SEL Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R775 1-249-403-11 CARBON 1/4W 1-678-519-11 VOL SEL BOARD (BR, SP) R791 1-249-399-11 CARBON 1/4W ************** R792 1-249-399-11 CARBON 1/4W R798 1-249-427-11 CARBON 6.8K 1/4W <...
  • Page 69 MDS-S50 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 4-230-403-51 MANUAL, INSTRUCTION (ITALIAN, PORTUGUESE) (AEP) 4-230-403-61 MANUAL, INSTRUCTION (TRADITIONAL CHINESE) (SP, HK) 4-230-403-71 MANUAL, INSTRUCTION (SWEDISH, DANISH, FINNISH) (AEP) 4-230-403-81 MANUAL, INSTRUCTION (POLISH, RUSSIAN) (AEP) 4-981-643-11 COVER, BATTERY (for RM-D47M)
  • Page 70 MDS-S50 REVISION HISTORY Clicking the version allows you to jump to the revised page. Also, clicking the version at the upper right on the revised page allows you to jump to the next revised page. Ver. Date Description of Revision 2001.02...

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