SERVICE MANUAL HCD-MD373 AEP Model UK Model E Model Australian Model Chinese Model Tourist Model Ver 1.1 2001.06 HCD-MD373 is the amplifir, CD, MD and tuner section in DHC-MD373.
SELF-DIAGNOSIS FUNCTION The self-diagnosis function consists of error codes for customers which are displayed automatically when errors occur, and error codes which show the error history in the test mode during servicing. For details on how to view error codes for the customer, refer to the following box in the instruction manual. For details on how to check error codes during servicing, refer to the following “Procedure for using the SelfDiagnosis Function (Error History Display Mode)”.
ITEMS OF ERROR HISTORY MODE ITEMS AND CONTENTS Selecting the Test Mode Display Details of History Displays the recording time. Displayed as “rππππππh”. The displayed time is the total time the laser is set to the high power state. This is about 1/4 of the actual recording time. The time is displayed in decimal digits from 0h to 65535h. total rec total play Displays the play time. Displayed as “pππππππh”. The time displayed is the total actual play time. Pauses are not counted.
Laser component in this product is capable of emitting radiation exceeding the limit for Class 1. MODEL IDENTIFICATION — BACK PANEL — This appliance is classified as a CLASS 1 LASER product. The CLASS 1 LASER PRODUCT MARKING is located on the rear exterior. Parts No. PARTS No. This caution label is located inside the unit.
Ver 1.1 2001.06 TABLE OF CONTENTS 1. SERVICING NOTE .......................................................... 6 2. GENERAL ........................................................................ 16 3. DISASSEMBLY 3-1. 3-2. 3-3. 3-4. 3-5. 3-6. 3-7. 3-8. 3-9. Case ................................................................................... 19 Front Panel ......................................................................... 20 Back Panel ..........................................................
SECTION 1 SERVICING NOTE Note 1: “R” As this unit has only a few buttons, some operations require the use of remote commander (provided with RM-SJ373/unit: 1-418-554-11) buttons. These operations are indicated as “R” in this manual. Example: MENU/NO “R” ...Press the MENU/NO button of the remote commander. DRAWING OUT THE TRAY DURING POWER OFF Tray (CDM) Move the Cam block in the direction of arrow with a finger.
SERVICE POSITION THE MD MECHANISM SERVICE POSITION THE CD MECHANISM MD mechanism deck CD mechanism deck SERVICE POSITION THE POWER BOARD Power board Amp board Main board CN993 CN802 Extension cable (4P) (J-2501-042-A) Extension cable (3P) (J-2501-045-A) 7
Cold Reset • The cold reset clears all data inculuding preset data stored in the RAM to initial conditions. Execute this mode when returning the set to the customer. Procedure 1: (recommended) Press the RESET button on the back panel. Procedure 2: 1. When the power ON, press the 1/u button while pressing the PLAY MODE/TUNING MODE button and p (CD) buttons together. 2. “COLD RESET” is displayed on the fluorescent indicator tube and reset is executed.
Aging Mode • Mode for repeating operations of the CD player automatically. When errors occur: Aging stops and a message indicating that an error has occurred such as “CD MEC ERR” is displayed. (For details of errors, refer to “Error History Display Mode”.) When no errors occur: Aging is repeatedly performed. Procedure: 1. Load any CD. 2. Press the FUNCTION button and set the function to CD. 3. While pressing the PLAY MODE/TUNING MODE button and ^ (MD) button, press the 1/u button. 4.
• Reading the Mechanism Error History Display (To switch the history, press the PLAY MODE/TUNING MODE button.) Display E@@M**#*$* @@: Error number.
JIG FOR CHECKING BD (MD) BOARD WAVEFORM The special jig (J-2501-149-A) is useful for checking the waveform of the BD (MD) board. The names of terminals and the checking items to be performed are shown as follows.
IOP DATA RECORDING AND DISPLAY WHEN OPTICAL PICK-UP AND NON-VOLATILE MEMORY (IC171 OF BD (MD) 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. When replacing the optical pick-up or non-volatile memory (IC171 of BD (MD) board), record the IOP value on the optical pick-up according to the following procedure. Record Precedure: 1.
CHECKS PRIOR TO PARTS REPLACEMENT AND ADJUSTMENTS Before performing repairs, perform the following checks to determine the faulty locations up to a certain extent. Details of the procedures are described in “5 Electrical Adjustments”.
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 following will be displayed : During recording and stop : Retry cause, number of retries, and number of retry errors. During playback : Information such as type of disc played, part played, copyright.
Reading the Track Mode Display Higher Bits Hexadecimal 8 Bit Binary 4 2 1 Lower Bits 8 4 2 1 b7 b6 b5 b4 b3 b2 b1 b0 Details Hexadecimal When 0 When 1 0 0 0 0 0 0 0 1 01 Emphasis OFF Emphasis ON 0 0 0 0 0 0 1 0 02 Monaural Stereo 0 0 0 0 0 1 0 0 04 This is 2-bit display. Normally 01. 0 0 0 0 1 0 0 0 08 01:Normal audio.
SECTION 2 GENERAL Front Panel 1 2 3 4 6 5 24 7 8 23 9 10 11 22 21 20 LOCATION OF PARTS AND CONTROLS 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 16 1/u (power) switch MD slot 6 (Eject) (MD) button MD indicator (P (MD) button p (MD) button VOLUME (CD) knob (P (CD) button p (CD) button TUNER/BAND button FUNCTION button MD/CD =0/)+ + button MD/CD =0/)+ – button CD indicator 6 (CD) button LINE IN jack r REC button CD/MD SYNC button Disc tray REPEAT, STEREO/MONO button PLAY MODE
This section is extracted from instruction manual.
SECTION 3 DISASSEMBLY Note: Follow the disassembly procedure in the numerical order given.
3-2. FRONT PANEL 8 Screw (BVTT 3x6) 5 Screw (BVTT 3x10) 0 MD mechanism block 7 Front panel block (Two claws) 9 Screw (BVTT 3x6) 1 Flat type wire (25 core) 2 Flat type wire (31 core) Claw 6 Screw (BVTT 3x6) 3 Ground wire (Black) Claw Claw 4 Ground wire (Red) 3-3.
3-4. MAIN BOARD AND POWER TRANSFORMER 4 Connector (2P) 5 Connector (2P) 3 Connector (4P) !™ Power transformer 7 Screw (BVTP 3x6) Amp board (CN801) 6 Connector (Amp board, CN801) (Take note of the claw) 8 Screw (BVTP 3x6) SP board 0 Connector (3P) Power board 2 Flat type wire (15 core) 9 Two screws (BVTT 3x6) 1 Flat type wire (19 core) !¡ Four screws (BVTT 3x6) Main board 3-5.
3-6. TRAY, GEAR AND CAM 4 Belt (CDM55) 5 Bushing 6 Pulley (LDG) 8 Gear (B) 9 Gear (A) 7 Roller 0 Cam (CDM55) 2 Push the claw in tne direction of arrow C. C A B B 3 Pull out the tray. 3-7. CD BASE UNIT 1 Pull out the tray in the arrow direction A, and release the lock while pressing this claw in the arrow direction B. Release 3-8. OPTICAL PICK-UP SECTION OF CD (KSS-213BA/F-NP) 3 Optical pick-up (for CD) 1 Floating screw (PTPWH M2.6) 2 Remove the Holder (BU) assembly in the direction of arrow A.
3-9. BD (CD) BOARD, SPINDLE MOTOR (M101) AND SLED MOTOR (M102) 6 Gear (M) 4 Two screws (P 2x3) 8 Two Insulators (BU) !¡ Spindle motor (M101) 2 Remove the four solders. 0 Sled shaft 7 Flatness gear (P) M101 IC102 M102 5 Sled motor (M102) 9 Two Insulators (BU) IC103 IC101 3 BD (CD) board 1 Screw (BVTP 2.6x8) 3-10.
3-11. SLIDER (CAM) 6 Slider (CAM) • Note for installation of Slider (CAM) Set the shaft of Cam gear to be at the position in the figure. A 2 Bracket (GUIDE L) 1 Two screws (BTP 2.6x6) Set the shaft of Lever (O/C) to be at the position in the figure. 3 Leaf spring 4 Two screws (BTP 2.6x6) When attaching the slider (cam), this part of the over write head should be inside arrow A. 5 Bracket (GUIDE R) 3-12.
3-13. OVER WRITE HEAD 3-14. OPTICAL PICK-UP OF MD (KMS-260B/J1N) Note: Turn the optical pick-up inside out, and pull out the flexible board. 2 Screw (P 1.7x6) 5 Optical pick-up (for MD) 3 Over write head (HR901) 4 Flexible board 1 Flexible board 1 Screw (B 2x8) 3 Main shaft 2 Leaf spring (SHAFT) 3-15. SPINDLE MOTOR (M901) AND SLED MOTOR (M902) (MD) 3 Gear (SL-B) 4 Three screws (B 2x5) 1 Screw (M1.7) 2 Gear (SL-A) 5 Spindle motor (M901) The BD (MD) board is soldered at two parts. (See page 24.
SECTION 4 TEST MODE Note 1: About “R” As this unit has only a few buttons, some operations require the use of remote commander (RM-SJ373/provided with unit: 1-418-554-11) buttons. These operations are indicated as “R” in this manual. Example: MENU/NO “R” ...Press the MENU/NO button of the remote commander. 4-1.
4-5. SELECTING THE TEST MODE There are 31 types of test modes as shown below. The groups can be switched by pressing the =0/MD/CD/TUNING – button or )+/MD/CD/TUNING + button. After selecting the group to be used, press the ENTER/YES “R” button. After setting a certain group, pressing the =0/MD/CD/TUNING – button or )+/MD/CD/TUNING + button switches between these modes. Refer to “Group” in the table for details selected. All items used for servicing can be treated using group S.
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 Press the =0/MD/CD/TUNING – button or )+/MD/CD/TUNING + button and display “CPLAY MODE”. 3 Press the ENTER/YES “R” button to change the display to “CPLAY MID”. 4 When access completes, the display changes to “C1 = AD = ”. Note : The numbers “ ” displayed show you error rates and ADER. 2.
4-6. FUNCTIONS OF OTHER BUTTONS Contents Function ^ (MD) Sets continuous playback when pressed in the STOP state. When pressed during continuous playback, the tracking servo turns ON/OFF. p (MD) Stops continuous playback and continuous recording. )+/MD/CD/TUNING + The sled moves to the outer circumference only when this is pressed. =0/MD/CD/TUNING – The sled moves to the inner circumference only when this is pressed. CLEAR “R” Switches between the pit and groove modes when pressed.
MEANINGS OF OTHER DISPLAYS Contents Display When Lit When Off ( (MD) * During continuous playback (CLV: ON) STOP (CLV: OFF) P (MD) * Tracking servo OFF Tracking servo ON r REC * Recording mode ON Recording mode OFF SYNC CLV low speed mode CLV normal mode LEVEL-SYNC ABCD adjustment completed OVER Tracking offset cancel ON 1 Tracking auto gain OK REPEAT Focus auto gain OK TRACK Pit Groove DISC High reflection Low reflection SHUFFLE CLV S CLV A MONO CLV LOCK CLV UNLOCK * Ite
SECTION 5 ELECTRICAL ADJUSTMENTS MD SECTION 5-1. PARTS REPLACEMENT AND ADJUSTMENT • Check and adjust the MDM and MBU as follows. The procedure changes according to the part replaced • Abbreviation OP : Optical pick-up OWH: Overwrite head • Temperature compensation offset check • Laser power check • Traverse check • Focus bias check • C PLAY check • Self-recording/playback check OK NG Check the sleding and spindle mechanisms. Other causes can be suspected.
5-2. PRECAUTIONS FOR CHECKING LASER DIODE EMISSINON To check the emission of the laser diode during adjustments, never view directly from the top as this may lose your eye-sight. 5-3. PRECAUTIONS FOR USE OF OPTICAL PICKUP (KMS-260B) As the laser diode in the optical pick-up is easily damaged by static electricity, solder the laser tap of the flexible board when using it. Before disconnecting the connector, desolder first. Before connecting the connector, be careful not to remove the solder.
5-6. CHECKS PRIOR TO REPAIRS These checks are performed before replacing parts according to “approximate specifications” to determine the faulty locations. For details, refer to “Checks Prior to Parts Replacement and Adjustments” (See page 13). 5-6-1. Temperature Compensation Offset Check When performing adjustments, set the internal temperature and room temperature to 22 to 28°C. Checking Procedure: 1. Press the =0/MD/CD/TUNING – button or )+/ MD/CD/TUNING + button to display “TEMP CHECK”. 2.
9. Press the ENTER/YES “R” button display “EFB = MO-P”. Then, the optical pick-up moves to the pit area automatically and servo is imposed. 10. Observe the waveform of the oscilloscope, and check that the specified value is satisfied. Do not press the =0/MD/CD TUNING– button or )+/MD/CD/TUNING+ button. (Traverse Waveform) A VC B Specified value : Below 10% offset value Offset value (%) = IA – BI X 100 2 (A + B) 11.
8. “C1 = AD = ” will be displayed. 9. Check that the C1 error becomes below 80 and the AD error below 2. 10. Press the MENU/NO “R” button to stop playback, and press the 6 (MD) button and remove the disc. 5-7. INITIAL SETTING OF ADJUSTMENT VALUE Note: Mode which sets the adjustment results recorded in the non-volatile memory to the initial setting value. However the results of the temperature compensation offset adjustment will not change to the initial setting value.
5. Then “LD 7.0 mW $ ” will be displayed. 6. Press the =0/MD/CD/TUNING – button or )+/ MD/CD/TUNING + button so that the reading of the laser power meter becomes 6.9 to 7.1 mW, press the ENTER/YES “R” button and save it. Note : Do not perform the emission with 7.0 mW more than 15 seconds continuously. 7. Then, Press the = 0 /MD/CD/TUNING – button or )+/MD/CD/TUNING + button and display “LDPWR CHECK”. 8. Press the ENTER/YES “R” button once and display “LD 0.9 mW $ ”.
9. Press the ENTER/YES “R” button, and save the adjustment results in the non-volatile memory. (“EFB = SAVE” will be displayed for a moment.) 10. “EFB = MO-P”. will be displayed. The optical pick-up moves to the pit area automatically and servo is imposed. 11. Press the =0/MD/CD/TUNING – button or )+/ MD/CD/TUNING + button until the waveform of the oscilloscope moves closer to the specified value. In this adjustment, waveform varies at intervals of approx. 2%.
5-13. ERROR RATE CHECK 5-13-1. CD Error Rate Check Checking Procedure : 1. Load a check disc (MD) TDYS-1. 2. Press the =0/MD/CD/TUNING – button or )+/ MD/CD/TUNING + button and display “CPLAY MODE”. 3. Press the ENTER/YES “R” button twice and display “CPLAY MID”. 4. The display changes to “C1 = AD = ”. 5. Check that the C1 error rate is below 20. 6. Press the MENU/NO “R” button, stop playback, press the 6 (MD) button, and remove the test disc. 5-13-2. MO Error Rate Check Checking Procedure : 1.
5-15. ADJUSTING POINTS AND CONNECTING POINTS Note: Clear RF signal waveform means that the shape “◊” can be clearly distinguished at the center of the waveform. CD SECTION [BD (MD) BOARD] (SIDE A) Note: 1. CD Block is basically constructed to operate without adjustment. Therefore, check each item in order given. 2. Use YEDS-18 disc (3-702-101-01) unless otherwise indicated. 3. Use an oscilloscope with more than 10MΩ impedance. 4.
HCD-MD373 SECTION 6 DIAGRAMS 6-1. CIRCUIT BOARDS LOCATION Amp board Power board SP board MD digital board Tuner unit TUNER UNIT is supplied as the assembled block.
HCD-MD373 6-2.
HCD-MD373 – BD (MD) SECTION (1/2) – DIGITAL SERVO SIGNAL PROCESSOR, DIGITAL SIGNAL PROCESSOR EFM/ACIRC ENCODER/DECODER, SHOCK-PROOF MEMORY CONTROLLER, ATRAC ENCODER/DECODER IC121 OVER WRITE HEAD DRIVE IC181 HEAD DRIVE Q181,182 MORFO MORFI RFO AGCI BPF J A B C D E F FOCUS ERROR AMP IV AMP AT AMP FE ADAGC ADIN 10 VC ADFG CVB TRACKING ERROR AMP TEMPI TEMP AMP TE SE CSLED OSCI BOTM 64 PEAK 63 35 65 34 VC 31 XBCK LRCK CLOCK GENERATOR ABCD VC ANALOG MUX SQSY DQSY SUBCODE PROCESSOR
HCD-MD373 – BD (MD) SECTION (2/2) – A/D,D/A CONVERTER IC201 18 DATAO MD REC-L (AD IN L) VINL1 2 VINR1 4 R-CH MD-L (DATA OUT L) VOUTL 26 VOUTR 24 R-CH MAIN SECTION ADDT MD LEVEL L BCK LRCK DADT 16 BCK 17 WS 19 DATAI IC202 9 IC202 8 11 10 12 SYSCLK B MD LEVEL R (Page 44) L3MODE 13 L3CLK 14 L3DATA 15 X201 22MHz 512FS SYSTEM CONTROL IC316 A BD (MD) SECTION (1/2) (Page 42) SCTX XINT SQSY DQSY MNT3 MNT2 MNT1 MNT0 SENS SRDT SCLK SWDT XLATCH LIMIT-IN REFLECT PROTECT CHACKIN SW PACK-OUT SW PB P
HCD-MD373 – MAIN SECTION – MUTE SW Q551 MUTE SW Q841 11 1 POWER AMP 10 IC801 TUNER UNIT ANTENNA 50 STEREO PROTECT SW Q872–873 OVER LOAD DET Q802, 871 BD (CD) SECTION M103 LOADING MOTOR M 54 53 55 52 MUTE CONTROL Q552 49 MUTE MUTE SW Q801 (Page 41) RDS R-CH AEP, UK 26 (Page 41) 59 32 56 81 58 82 19 33 57 59 32 56 81 58 82 19 33 57 21 88 93 89 91 72 79 CD-POWER MD-RESET AC-CUT RESET FL-ON XOUT XIN SUBXIN SUBXOUT IC501 MASTER CONTROL 94 30 29 83 38 47 48 45 46 34 36 37 35
HCD-MD373 THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS. (In addition to this, the necessary note is printed in each block.) WAVEFORMS – BD ( CD) SECTION – – BD (MD) (1/2) SECTION – 1 – MAIN (3/3) SECTION – 1 1 0.46Vp-p 5.2Vp-p 3.1Vp-p For schematic diagrams. Note: • All capacitors are in µF unless otherwise noted. pF: µµF 50 WV or less are not indicated except for electrolytics and tantalums. • All resistors are in Ω and 1/4 W or less unless otherwise specified.
HCD-MD373 6-3. PRINTED WIRING BOARD – BD (CD) SECTION – • See page 40 for Circuit Boards Location.
HCD-MD373 6-4. SCHEMATIC DIAGRAM – BD (CD) SECTION – • See page 45 for Waveforms. • See page 67 for IC Block Diagrams. • See page 69 for IC Pin Functions.
HCD-MD373 6-5. PRINTED WIRING BOARD – BD (MD) SECTION – • See page 40 for Circuit Boards Location. • Semiconductor Location • Semiconductor Location Ref. No. Location D101 D181 D183 A-1 D-3 D-3 IC103 IC123 IC171 B-1 D-2 D-1 Q102 Q103 Q104 B-1 C-1 B-1 48 Ref. No.
HCD-MD373 6-6. SCHEMATIC DIAGRAM – BD (MD) SECTION (1/2) – • See page 45 for Waveforms. • See page 65 for IC Block Diagrams. • See page 71 for IC Pin Functions.
HCD-MD373 6-7. SCHEMATIC DIAGRAM – BD (MD) SECTION (2/2) – • See page 45 for Waveforms. • See page 48 for Printed Wiring Board. • See page 66 for IC Block Diagrams.
HCD-MD373 6-8. SCHEMATIC DIAGRAM – SP SECTION – 6-9. PRINTED WIRING BOARD – SP SECTION – • See page 40 for Circuit Boards Location.
HCD-MD373 6-10. PRINTED WIRING BOARD – MAIN SECTION – • See page 40 for Circuit Boards Location.
HCD-MD373 6-11. SCHEMATIC DIAGRAM – MAIN SECTION (1/3) – • See page 68 for IC Block Diagrams.
HCD-MD373 6-12. SCHEMATIC DIAGRAM – MAIN SECTION (2/3) – • See page 52 for Printed Wiring Board. • See page 68 for IC Block Diagrams.
HCD-MD373 6-13. SCHEMATIC DIAGRAM – MAIN SECTION (3/3) – • See page 45 for Waveforms. • See page 52 for Printed Wiring Board. • See page 68 for IC Block Diagrams. • See page 75 for IC Pin Functions.
HCD-MD373 6-14. SCHEMATIC DIAGRAM – MD DIGITAL SECTION – • See page 45 for Waveforms. • See page 67 for IC Block Diagrams.
HCD-MD373 6-15. PRINTED WIRING BOARD – MD DIGITAL SECTION – • See page 40 for Circuit Boards Location.
HCD-MD373 6-16.
HCD-MD373 6-17. PRINTED WIRING BOARD – AMP SECTION – • See page 40 for Circuit Boards Location.
HCD-MD373 6-18.
HCD-MD373 6-19. PRINTED WIRING BOARD – PANEL SECTION – • See page 40 for Circuit Boards Location. • Semiconductor Location (Page 52) 61 61 Ref. No.
HCD-MD373 6-20.
HCD-MD373 6-21. PRINTED WIRING BOARD – POWER SECTION – • See page 40 for Circuit Boards Location. • Semiconductor Location Ref. No.
HCD-MD373 6-22. SCHEMATIC DIAGRAM – BD SWITCH SECTION – 6-24. SCHEMATIC DIAGRAM – LOADING SECTION – S1 LOADING SWITCH MD DIGITAL BOARD CN1 CLOSE GND J OPEN (Page 56) H LOAD + LOAD – M103 LOADING MOTOR 6-23. PRINTED WIRING BOARD – BD SWITCH SECTION – • See page 40 for Circuit Boards Location. MAIN BOARD (3/3) (Page 55) 6-25. PRINTED WIRING BOARD – LOADING SECTION – • See page 40 for Circuit Boards Location.
6-26.
CAPA– CAPA+ IN2R IN2F VM2 OUT2F PGND2 OUT2R VM12 OUT1R PGND1 OUT1F VM1 IN1F IN1R VDD IC152 BH6511FS-E2 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 PREDRIVE PREDRIVE 11 12 13 PSB 14 16 15 IN3R 10 INTERFACE IN3F PGND4 9 VM3 OUT4F 8 OUT3F 7 AMP OUT3R 6 AMP VM34 5 VM4 IN4F IN4R 4 AMP PGND3 AMP VDD INTERFACE PREDRIVE 3 VG GND 2 AMP PREDRIVE INTERFACE 1 AMP OUT4R CHARGE PUMP.
• BD (CD) Board DOUT VDD VSS AVDD3 PCO FILI FILO CLTV AVSS3 RFAC BIAS ASYI ASYO AVDD0 IGEN AVSS0 ADIO RFDC CE TE IC101 CXD2587Q 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 LRCK 61 D/A INTERFACE PCMD 62 ERROR CORRECTOR INTERNAL BUS DIGITAL OUT 40 SE 39 FE 38 VC ASYMMETRY CORRECTION DIGITAL PLL 16K RAM OPERATIONAL AMPLIFIER ANALOG SWITCH EFM DEMODULATOR BCK 63 A/D CONVERTER EMPH 64 XVDD 65 XTAI XTAO XVSS AVDD1 AOUT1 AIN1 66 67 68 69 70 71 CLOCK GENERATOR TI
• MAIN Board (3/3) IC302 MC14052B IC171 LB1641 T.S.D 1 2X2 2 2XCOM 3 14 X1 2X3 4 13 XCOM O.C.P MOTOR DRIVE MOTOR DRIVE 16 VDD 2X0 15 X2 12 X0 2X1 5 1 2 3 4 5 6 7 8 9 10 GND MOTOR DRIVE NOISE FILTER CLAMP FWD.IN REV.
6-27. IC PIN FUNCTIONS • IC101 DIGITAL SIGNAL PROCESSOR (CXD2587Q) (BD(CD) board) Pin No.
Pin No.
• IC101 RF Amplifier (CXA2523AR) (BD(MD) board) Pin No. Pin Name I-V converted RF signal I input J I I-V converted RF signal J input VC O Middle point voltage (+1.
• IC121 Digital Signal Processor, Digital Servo Signal Processor, EFM/ACIRC Encoder/Decoder, Shock-proof Memory Controller, ATRAC Encoder/Decoder, 2M Bit DRAM (CXD2654R) (BD (MD) board) Pin No.
Pin No.
Pin No. Pin Name Function TFDR O Tracking servo drive PWM output (+) 87 DVDD — +3V power supply (Digital) 88 FFDR O Focus servo drive PWM output (+) 89 FRDR O Focus servo drive PWM output (–) 90 FS4 O 176.
• IC501 MASTER CONTROL (M30620ECFP-A21) (MAIN board) Pin No. 1 Pin Name STK-POWER I/O O O Function Power amp ON/OFF signal output 2 P Power ON/OFF signal output (Not used) 3 F-RY O Front speaker relay control output 4 R-RY O Rear speaker relay control output (Not used) 5 CD-POWER O CD power on signal output 6 TA-MUTE O Line mute ON/OFF signal output 7 DBFB-H O DBFB H/L select signal output (Not used) 8, 9 — — Not used 10 SUBXIN I 11 SUBXOUT O X’tal (32.
Pin No.
SECTION 7 EXPLODED VIEWS NOTE: • Items marked “*” are not stocked since they are seldom required for routine service. Some delay should be anticipated when ordering these items. • The mechanical parts with no reference number in the exploded views are not supplied. • Hardware (# mark) list and accessories and packing materials are given in the last of this parts list. The components identified by mark ! or dotted line with mark ! are critical for safety. Replace only with part number specified.
7-2. CHASSIS SECTION 52 #3 not supplied T900 #3 53 51 T901 #1 #1 #2 #1 #1 #1 #2 #3 #1 #1 58 55 #1 59 #3 #1 54 61 #3 CDM55A-5SBD32 54 60 #3 #3 #3 not supplied not supplied 62 AUS JE 63 62 57 #3 56 UK,HK 63 AR EXCEPT AR,AUS 62 The components identified by mark ! or dotted line with mark ! are critical for safety. Replace only with part number specified. Ref. No. Part No.
7-3. MD MECHANISM DECK (MDM-5A) 124 113 111 112 113 117 118 110 114 107 115 not supplied 119 121 109 120 108 #8 116 122 123 107 103 103 125 102 #8 126 106 101 104 M903 105 #4 MBU-5A #8 Ref. No. Part No.
7-4. MD BASE UNIT (MBU-5A) 152 165 164 HR901 not supplied 171 #6 163 170 #7 167 #7 166 168 #7 not supplied 169 162 161 #7 155 #7 not supplied 156 #5 159 M901 160 #6 S102 158 #7 154 157 #7 152 153 M902 151 152 The components identified by mark ! or dotted line with mark ! are critical for safety. Replace only with part number specified. Ref. No. Part No.
Ver 1.1 2001.06 7-5. CD MECHANISM DECK (CDM55A-5SBD32) (CDM identification: cleam colored chassis) 211 206 not supplied 213 212 209 208 210 207 205 not supplied 201 204 214 203 215 217 M103 214 214 S1 BU-5SBD32 202 216 216 #4 #4 218 not supplied Ref. No. Part No.
Ver 1.1 2001.06 7-6. CD BASE UNIT (BU-5SBD32) (BU identification: black plastic turntable with magnet) 255 256 rC 257 #9 253 254 M102 254 M101 (including rC) 258 252 251 Ref. No. Part No. Description 251 * 252 253 254 ! 255 4-951-620-01 A-4724-375-A 4-917-565-01 4-951-940-01 8-848-379-31 SCREW (2.6X8), +BVTP BD (CD) BOARD, COMPLETE SHAFT, SLED INSULATOR (BU) OPTICAL PICK-UP KSS-213BA/F-NP 82 Remark The components identified by mark ! or dotted line with mark ! are critical for safety .
Ver 1.1 2001.06 7-7. CD MECHANISM DECK (CDM55C-5BD32) (CDM identification: black colored holder (AT) (319), pulley (313) with magnet) 311 306 309 313 308 310 307 319 305 301 304 314 303 315 317 M103 314 314 S1 BU-5BD32 302 316 316 #11 #11 318 not supplied Ref. No. Part No. Description Part No. Description 301 302 303 304 305 4-925-315-41 1-674-336-11 4-224-894-11 4-220-229-01 4-220-239-01 DAMPER LOADING BOARD TRAY (CDM55D) LEVER (SW) SPRING, TORSION Remark Ref. No.
Ver 1.1 2001.06 7-8. CD BASE UNIT (BU-5BD32) (BU identification: metal turntable without magnet) 355 356 rC 357 #9 353 354 M102 354 M101 (including rC) 358 352 351 Ref. No. Part No. Description 351 * 352 353 354 ! 355 4-951-620-01 A-4724-375-A 4-917-565-01 4-951-940-01 8-848-379-31 SCREW (2.6X8), +BVTP BD (CD) BOARD, COMPLETE SHAFT, SLED INSULATOR (BU) OPTICAL PICK-UP KSS-213BA/F-NP 84 Remark The components identified by mark ! or dotted line with mark ! are critical for safety .
SECTION 8 ELECTRICAL PARTS LIST AMP Note: The components identified by mark ! or dotted line with mark ! are critical for safety. Replace only with part number specified. When indicating parts by reference number, please include the board name. Ref. No. Part No. • Due to standardization, replacements in the parts list may be different from the parts specified in the diagrams or the components used on the set. • -XX, -X mean standardized parts, so they may have some difference from the original one.
AMP Ref. No. BD (CD) Part No. Description R853 R854 R855 R856 R857 1-249-437-11 1-249-437-11 1-249-417-11 1-249-437-11 1-260-103-11 CARBON CARBON CARBON CARBON CARBON 47K 47K 1K 47K 2.2K 5% 5% 5% 5% 5% Remark 1/4W 1/4W 1/4W F 1/4W 1/2W R858 ! R859 R860 R861 R862 1-260-103-11 1-217-151-00 1-249-417-11 1-249-431-11 1-260-076-11 CARBON METAL CARBON CARBON CARBON 2.2K 0.
BD (CD) Ref. No. Part No. Description Remark R158 R159 1-216-111-00 METAL CHIP 1-216-101-00 METAL CHIP 390K 150K 5% 5% 1/10W 1/10W R161 R162 R171 R172 R173 1-216-308-00 1-216-101-00 1-216-078-00 1-216-073-00 1-216-077-91 4.
BD (MD) Ref. No. MD DIGITAL Part No. Description Remark L106 1-414-813-11 FERRITE 0uH L121 L122 L151 L152 L153 1-414-813-11 1-414-813-11 1-412-029-11 1-412-029-11 1-412-032-11 FERRITE FERRITE INDUCTOR CHIP INDUCTOR CHIP INDUCTOR CHIP 0uH 0uH 10uH 10uH 100uH L154 L161 L162 L181 1-412-032-11 1-414-813-11 1-414-813-11 1-216-295-91 INDUCTOR CHIP FERRITE FERRITE SHORT 100uH 0uH 0uH 0 Ref. No.
MD DIGITAL Ref. No. Part No. Description C358 C359 C360 C362 C363 1-163-251-11 1-163-251-11 1-163-251-11 1-163-038-91 1-163-251-11 CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP 100PF 100PF 100PF 0.1uF 100PF 5% 5% 5% Remark C503 C509 C510 C522 C527 1-126-206-11 1-126-206-11 1-126-206-11 1-163-038-91 1-163-038-91 ELECT CHIP ELECT CHIP ELECT CHIP CERAMIC CHIP CERAMIC CHIP 100uF 100uF 100uF 0.1uF 0.
MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C161 1-126-933-11 ELECT 100uF 20% 16V C407 C166 C167 C171 C172 C173 1-162-282-31 1-162-294-31 1-164-159-11 1-162-306-11 1-126-933-11 CERAMIC CERAMIC CERAMIC CERAMIC ELECT 100PF 0.001uF 0.1uF 0.01uF 100uF 10% 10% C501 C502 C503 1-164-025-51 CERAMIC 1-164-025-51 CERAMIC 1-162-306-11 CERAMIC 18PF 18PF 0.
MAIN Ref. No. Part No. Description Remark Ref. No. Part No.
MAIN Ref. No. Part No. Description Remark Ref. No. Part No.
PANEL Ref. No. Part No. Description Remark Ref. No. Part No. Remark < IC > A-4426-073-A PANEL BOARD, COMPLETE ********************** IC601 IC602 1-690-880-31 LEAD (WITH CONNECTOR) 4-221-103-01 HOLDER (FL) * Description 8-759-297-23 IC M66004M8FP 8-759-459-85 IC NJL63H400A < JACK > < CAPACITOR > C601 C602 C603 C604 C605 1-162-306-11 1-162-306-11 1-124-261-00 1-162-306-11 1-162-306-11 CERAMIC CERAMIC ELECT CERAMIC CERAMIC 0.01uF 0.01uF 10uF 0.01uF 0.
PANEL Ref. No. POWER Part No. Description R651 R652 R681 R682 1-249-429-11 1-249-435-11 1-162-600-11 1-249-441-11 CARBON CARBON CERAMIC CARBON R686 R687 1-249-425-11 CARBON 1-249-441-11 CARBON Remark Ref. No. Part No. 10K 33K 0.0047uF 100K 5% 5% 30% 5% 1/4W 1/4W 16V 1/4W * CN993 * CN994 1-564-519-11 PLUG, CONNECTOR 4P 1-770-730-11 CONNECTOR, BOARD TO BOARD 11P 4.
POWER Ref. No. Part No. Description Remark < SWITCH > ! S991 1-571-309-11 SWITCH (VOLTAGE SELESTOR) (AUS,AR,HK,JE,MY,SP,KR,CH) Ref. No. Part No.
HCD-MD373 Ver 1.1 2001.06 Ref. No. Part No. Description ************* HARDWARE LIST ************* #1 #2 #3 #4 #5 7-685-647-79 7-685-650-91 7-685-871-01 7-685-533-19 7-627-852-08 SCREW +BVTP 3X10 TYPE2 TT(B) SCREW +BVTP 3X16 TYPE2 TT(B) SCREW +BVTT 3X6 (S) SCREW +BTP 2.6X6 TYPE2 N-S SCREW,PRECISION +P 1.7X2.5 #6 #7 #8 #9 #10 7-621-772-40 7-621-772-20 7-685-133-19 7-621-772-10 7-621-772-30 SCREW +B 2X8 SCREW +B 2X5 SCREW (DIA. 2.6) (IT3B) SCREW +B 2X4 SCREW +B 2X6 #11 7-685-534-19 SCREW +BTP 2.
HCD-MD373 MEMO 97
HCD-MD373 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 1.1 2001.06 Description of Revision Addition of CD mechanism (CDM55C-5BD32) and base unit (BU-5BD32). 1.0 1999.08 New.
