Sony MXDD-400 Service manual

MXD-D400

SERVICE MANUAL

Ver. 1.1 2005.03

US and foreign patents licensed from Dolby Laboratories.

MD Section

CD Section

US Model

Model Name Using Similar Mechanism NEW MD Mechanism Type MDM-7S2C Optical Pick-up Name KMS-262E Model Name Using Similar Mechanism NEW CD Mechanism Type CDM66C-30B61M Base Unit Name BU-30BD61B Optical Pick-up Name OP Assy (A-MAX.4T)

CD player section

System Compact Disc digital

Laser Semiconductor laser

Frequency response 20 Hz – 20 kHz (±0.5 dB) Wow and flutter Below measureable limit

MD deck section

System MiniDisc digital audio system Disc MiniDisc Laser Semiconductor laser

Sampling frequency 44.1 kHz Frequency response 20 Hz – 20 kHz (±0.5 dB)

Inputs

Jack type Input

ANALOG IN DIGITAL

OPTICAL IN

Pin jack 47 kilohms 500 mVrms 250 mVrms Squqre

optical connector jack

audio system

(λ=780 nm)

(±0.001% W.PEAK)

(λ=780 nm) Emission duration: continuous

impedance

Optical wave length: 660 nm

Rated input

– –

Minimum input

SPECIFICATIONS

Outputs

ANALOG OUT

DIGITAL OPTICAL OUT

PHONES

General

Power requirements Power consumption 19 watts

Dimensions (w/h/d) incl. projecting parts and controls

Mass Approx. 5.4 kg

Supplied accessories

• Audio connection cords (2)

• Remote commander (remote) (1)

• Sony R6 (size-AA) batteries (2)

Design and specifications are subject to change without notice.

Jack type Rated output Load

Pin jack 2 Vrms

Squqre optical connector jack

Stereo phone jack

(at 47 kilohms)

-18 dBm Optical wave

10 mW 32 ohm

120 V AC, 60 Hz

Less than 1 watt (at the power saving mode)

Approx. 430 × 108 × 399 mm

impedance

Over 10 kilohms

length:660 nm

9-877-241-02 Sony Corporation

COMPACT DISC MINIDISC DECK

MXD-D400

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 Self-Diagnosis Function (Error History Display Mode)”.

This deck has a Self-diagnosis display function to let you know if there is a deck malfunction. The display shows a code made up of three or five letters and a message alternately to show you the problem. To solve the problem refer to the following list. If any problem persists, consult your nearest Sony dealer.

C11/Protected

The MD is protected against erasure. cRemove the MD and slide the tab to close the slot.

C12/Cannot Copy

You tried to record a CD with a format that the deck does not support, such as a CD-ROM or MD data. cReplace the playable disc.

C13/REC Error

Recording could not be performed properly. cMove the deck to a stable place, and start

recording over from the beginning. The MD is dirty or scratched, or the MD does not meet the standar d s. cReplace the MD and start recording over from the

beginning.

C13/Read Error

The MD deck cannot read the disc information properly.

cRemove the MD once, then inser t it again.

C14/TOC Error

The MD deck cannot read the disc information properly.

cReplace the MD. cErase all the recorded contents of the MD using

the All Erase Function.

C41/Cannot Copy

The digitally dubbed material cannot be recorded digitally.

C71/Din Unlock

The digitally dubbed material cannot be recorded digitally.

A moment’s lighting is due to the signals of the digital program being recorded. This does not affect the recorded material.

The digital optical cable is disco nne ct ed , or the power of the connected component is turned off while recording the digital audio from the component connected to the DIGITAL OPTICAL IN jack.

cConnec t the digital optical cable, or turn on the

power of the connected component.

E0001/MEMORY NG

The component has internal problem. cConsult your nearest Sony dealer.

E0101/LASER NG

There is a problem with the laser pickup. cThe laser pi ck up ma y be dam a ged . C onsult your

nearest Sony dealer.

E0201/LOADING NG

There is a problem with the loading. cThe loadin g ma y be faile d. Consult your nearest

Sony dealer.

PROCEDURE FOR USING THE SELF-DIAGNOSIS FUNCTION (ERROR HISTORY DISPLAY MODE)

Note: Perform the self-diagnosis function in the “error history display mode” in the test mode. The following describes the least required procedure. Be

careful not to enter other modes by mistake. If you set other modes accidentally , pull out the AC cord to turn the power off and retry to enter the test mode.

1. Press the ?/1 button to turn he power on.

2. Press the [ AMS ] (CD) knob and [INPUT] button at the same time, press the [ AMS ] (MD) knob to display “SYS

version”.

3. Turn the [ AMS ] (CD) knob and when “MD Test” is displayed, press the [ AMS ] (MD) knob.

4. Turn the [ AMS ] (MD) knob and when “[Service]” is displayed, press the [YES] button.

5. Turn the [ AMS ] (MD) knob to display “Err Display”.

lL lL lL

6. Press the [YES] button to sets the error history mode and displays “op rec tm”.

7. Select the contents to be displayed or executed using the [ AMS ] (MD) knob.

8. Press the [ AMS ] (MD) knob to display or execute the contents selected.

9. Press the [ AMS ] (MD) knob another time returns to step 6.

lL lL

10. Press the [MENU/NO] button to display “Err Display” and release the error history mode.

11. To release the test mode, press the [ AMS ] (CD) knob and [INPUT] button at the same time, press the [ AMS ] (MD)

lL lL

knob.

12. Press the ?/1 button to turn the power off.

ITEMS OF ERROR HISTORY MODE ITEMS AND CONTENTS

Selecting the Test Mode

MXD-D400

Display

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 shows how long the laser is in high power state. It is about one fourth the actual recording time.

op play tm Cumulative playing time is displayed.

When cumulative playing 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.

spdl rp tm Cumulative spindle motor running time is displayed.

When cumulative spindle motor run 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.

retry err Displays the total number of retries during recording and number of retry errors during play.

Displayed as “rss pss”. “r” indicates the retries during recording while “p” indicates the retry errors during play. The number of retries and retry errors are displayed in hexadecimal digits from 00 to FF.

total err Displays the total number of errors.

Displayed as “total ss”. The number of errors is displayed in hexadecimal digits from 00 to FF.

err history Displays the 10 latest errors.

Displayed as “0s ErrCd@@”. s indicates the history number. The smaller the number, the more recent is the error. (00 is the latest). @@ indicates the error code. Refer to the following table for the details. The error history can be switched by turning the (MD) knob.

retry adrs Displays the past five retry addresses.

Displays “ss ADRS ssss”, ss is the history number, ssss is the cluster with the retry error. Select the error history number using the [ AMS ] (MD) knob.

er refresh Mode to clear the error history and retry address history.

[Operating method]

1) Press

2) The display will change to “er refresh?”, and then press [YES] button. The operation is over if “Complete!” is displayed. After this mode was executed, check the following:

• The data have been cleared.

• Perform the recording and playing to check that the mechanism operates normally.

tm refresh Mode to clear the “op rec tm” and “op play tm” histories.

These histories serve as approximate indications of when to replace the optical pick-up. If the optical pick-up has been replaced, perform this operation and clear the history. [Operating method]

1) Press

2) The display will change to “tm refresh?”, and then press [YES] button. The operation is over if “Complete!” is displayed. After this mode was executed, check the following:

• The data have been cleared.

• Perform the recording and playing to check that the mechanism operates normally.

op change Mode to clear cumulative time of “op rec tm” and “op play tm”.

These historical data are used to determine the timing when the optical pick-up is to be replaced. When the optical pick-up was replaced, perform this operation to clear historical data. [Operating method]

1) Press

2) The display will change to “op chang?”, and then press [YES] button. The operation is over if “Complete!” is displayed.

spdl change Mode to clear cumulative time of “spdl rp tm”.

This historical data is used to determine the timing when the spindle motor is to be replaced. When the spindle motor was replaced, perform this operation to clear historical data. [Operating method]

1) Press

2) The display will change to “spdl chang?”, and then press [YES] button. The operation is over if “Complete!” is displayed.

[ AMS ] (MD) knob when “er refresh” is displayed.

[ AMS ] (MD) knob when “tm refresh” is displayed.

[ AMS ] (MD) knob when “op change” is displayed.

[ AMS ] (MD) knob when “spdl change” is displayed.

Details of History

[ AMS ]

MXD-D400

Table of Error Codes

Error Code Details of Error

10 Loading failed 12 Loading switch combination is illegal 20 Head of PTOC could not be read within the

specified time

21 Head of PTOC could be read but its content is

erroneous

22 Access to UTOC could not be made within the

specified time

23 UTOC could be not read within the specified

3time 24 Content of UTOC is erroneous 30 Playing could not start 31 Content of sector is erroneous 40 Cause of retry occurred during normal recording 41 D-RAM overflowed and retry was executed 42 Retry was executed during the writing to TOC 43 S.F editing was interrupted by retry 50 Address could not be read except in access

processing 51 Focusing failed and it is out of control 60 Unlock retry

MXD-D400

SELF-DIAGNOSIS FUNCTION........................... 2

1. SERVICING NOTES............................................... 7

2. GENERAL ................................................................... 16

3. DISASSEMBLY

3-1. Disassembly Flow ........................................................... 17

3-2. Case (409538) ................................................................. 18

3-3. Loading Panel (CD) ........................................................ 18

3-4. MD Mechanism Deck (MDM-7S2C)............................. 19

3-5. CD Mechanism Deck (CDM66C-30B61C) ................... 19

3-6. Transformer Board .......................................................... 20

3-7. Main Board...................................................................... 20

3-8. Front Panel Block Section .............................................. 21

3-9. Holder Section................................................................. 21

3-10. Over Write Head (HR901).............................................. 22

3-11. Optical Pick-up (KMS-262E) ......................................... 22

3-12. BD (MD) Board .............................................................. 23

3-13. Loading Motor Assembly (M103), Spindle Motor

Assembly (M101), Sled Motor Assembly (M102) ........ 23

3-14. Tray (66) .......................................................................... 24

3-15. BD (CD) Board ............................................................... 25

3-16. Optical Block Section ..................................................... 25

4. TEST MODE.............................................................. 26

7-7. Base Unit Section (BU-30BD61M)................................ 89

8. ELECTRICAL PARTS LIST ............................... 90

5. ELECTRICAL ADJUSTMENTS

MD Section ..................................................................... 32

CD Section ...................................................................... 44

6. DIAGRAMS

6-1. Block Diagram – CD Section – ..................................... 46

6-2. Block Diagram – MD Section – .................................... 47

6-3. Block Diagram – MAIN Section – ................................ 48

6-4. Note for Printed Wiring Boards and

Schematic Diagrams ....................................................... 49

6-5. Printed Wiring Board – BD (CD) Section –.................. 50

6-6. Schematic Diagram – BD (CD) Section – .................... 51

6-7. Schematic Diagram – BD (MD) Board (1/2) –............. 52

6-8. Schematic Diagram – BD (MD) Board (2/2) –............. 53

6-9. Printed Wiring Board – BD (MD) Board – ................... 54

6-10. Printed Wiring Board

– MAIN Board (Component Side) – .............................. 56

6-11. Printed Wiring Board

– MAIN Board (Conductor Side) – ................................ 57

6-12. Schematic Diagram – MAIN Board (1/4) – .................. 58

6-13. Schematic Diagram – MAIN Board (2/4) – .................. 59

6-14. Schematic Diagram

– MAIN (3/4)/LOADING Boards – ............................... 60

6-15. Schematic Diagram – MAIN Board (4/4) – .................. 61

6-16. Printed Wiring Boards – Panel Section – ...................... 62

6-17. Schematic Diagram – Panel Section – .......................... 63

6-18. Printed Wiring Board – TRANSFORMER Board – ..... 64

6-19. Schematic Diagram – TRANSFORMER Board – ........ 65

6-20. IC Pin Function Description ........................................... 74

7. EXPLODED VIEWS

7-1. Overall Section................................................................ 83

7-2. Front Panel Section ......................................................... 84

7-3. Chassis Section ............................................................... 85

7-4. MD Mechanism Deck Section-1 (MDM-7S2C) ............ 86

7-5. MD Mechanism Deck Section-2 (MDM-7S2C) ............ 87

7-6. CD Mechanism Deck Section (CDM66C-30B61M) ..... 88

MXD-D400

SAFETY CHECK-OUT

After correcting the original service problem, perform the following safety check before releasing the set to the customer: Check the antenna terminals, metal trim, “metallized” knobs, screws, and all other exposed metal parts for AC leakage. Check leakage as described below.

LEAKAGE TEST

The AC leakage from any exposed metal part to earth ground and from all exposed metal parts to any exposed metal part having a return to chassis, must not exceed 0.5 mA (500 microamperes.). Leakage current can be measured by any one of three methods.

1. A commercial leakage tester, such as the Simpson 229 or RCA WT -540A. Follo w the manufacturers’ instructions to use these instruments.

2. A battery-operated AC milliammeter. The Data Precision 245 digital multimeter is suitable for this job.

3. Measuring the voltage drop across a resistor by means of a VOM or battery-operated AC voltmeter. The “limit” indication is 0.75 V, so analog meters m ust have an accurate lowvoltage scale. The Simpson 250 and Sanwa SH-63Trd are examples of a passive VOM that is suitable. Nearly all battery operated digital multimeters that have a 2 V AC range are suitable. (See Fig. A)

To Exposed Metal Parts on Set

1.5 k

0.15 µF

Fig. A. Using an AC voltmeter to check AC leakage.

Ω

Earth Ground

voltmete (0.75 V)

CAUTION

Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure.

Notes on chip 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 conductor of the circuit board (within 3 times).

• Be careful not to apply force on the conductor when soldering or unsoldering.

UNLEADED SOLDER

Boards requiring use of unleaded solder are printed with the leadfree mark (LF) indicating the solder contains no lead. (Caution: Some printed circuit boards may not come printed with

the lead free mark due to their particular size)

: LEAD FREE MARK

Unleaded solder has the following characteristics.

• Unleaded solder melts at a temperature about 40 ˚C higher than ordinary solder. Ordinary soldering irons can be used but the iron tip has to be applied to the solder joint for a slightly longer time. Soldering irons using a temperature regulator should be set to about 350 ˚C. Caution: The printed pattern (copper foil) may peel away if the

heated tip is applied for too long, so be careful!

• Strong viscosity Unleaded solder is more viscou-s (sticky, less prone to flow) than ordinary solder so use caution not to let solder bridges occur such as on IC pins, etc.

• Usable with ordinary solder It is best to use only unleaded solder but unleaded solder may also be added to ordinary solder.

This appliance is classified as a CLASS 1 LASER product. The CLASS 1 LASER PRODUCT MARKING is located on the rear exterior.

The following caution label is located inside of the apparatus.

SAFETY-RELATED 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 PUBLISHED BY SONY.

SECTION 1

SERVICING NOTES

MXD-D400

NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT

The laser diode in the optical pick-up block may suffer electrostatic break-down because of the potential difference generated by the charged electrostatic load, etc. on clothing and the human body. During repair, pay attention to electrostatic break-down 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.

For CD

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. Therefore, when checking the laser diode emission, observe from more than 30 cm away from the objecti ve lens.

LASER DIODE AND FOCUS SEARCH OPERATION CHECK

Carry out the “S curve check” in “CD section adjustment” and check that the S curve waveforms is output three times.

For MD

NOTES ON LASER DIODE EMISSION CHECK

Never look into the laser diode emission from right above when checking it for adjustment. It is feared that you will lose your sight.

CLEANING OBJECTIVE LENS OF OPTICAL PICK-UP

• In cleaning the objective lens of optical pick-up, be sure the following below.

1. In cleaning the lens, do not apply an excessive force.

As the optical pick-up is vulnerable, application of excessive force could damage the lens holder.

2. In cleaning, do not use a cleaner other than exclusive cleaning

liquid (KK-91 or isopropyl alcohol).

3. Wipe the objective lens spirally from center toward outside.

(See Figure A)

(Figure A)

4. Eject the disk, if loaded.

5. Disconnect the power cord from the socket to shut off the po wer

supply.

HOW TO OPEN THE LOADING PANEL (CD) WHEN POWER SWITCH IS OFF

Turn the cam (66) in the direction of arrow A.

Pull out the loading panel (CD).

MXD-D400

SERVICE POSITION – Main board –

main board

– Front panel block section –

front panel block section

– MD mechanism deck –

MXD-D400

BD (MD) board

MD mechanism dec (MDM-7S2C)

– CD mechanism deck –

CD mechanism deck (CDM66C-30B61M)

MXD-D400

NOTE FOR POSITION OF THE CABLE (4P)

Fix the cable (4P) between the transformer board and the main board with a lead pin keeping the cable from the powertransformer (TR651).

power transformer

transformer board

cable (4P)

(TR651)

lead pin

main board

MXD-D400

MD SECTION

JIG FOR CHECKING BD (MD) BOARD WAVEFORM

The special jig (J-2501-196-A) is useful for checking the waveform of the BD (MD) board. T he names of terminals and the checking items to be performed are shown as follows.

GND : Ground 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) TE : Tracking error signal (Traverse adjustment) VC : Reference level for checking the signal RF : RF signal (Check jitter) FE : Focus error signal

I+3V

GND

IOP

CN105

I+3V

IOP

GND

FE VC RF

I+3V IOP GND TE FE VC RF

for

MDM-7S2

MXD-D400

IOP DA TA RECORDING AND DISPLAY WHEN OPTICAL PICK-UP AND NON-V OLATILE MEMOR Y (IC195 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 optical pick-up label. When replacing the optical pick-up or non-volatile memory (IC195 of BD (MD) board), record the IOP value on the optical pick-up according to the following procedure.

Record Procedure:

1. Press the ?/1 button to turn on the power.

2. Press the [ AMS ] (CD) knob and [INPUT] button at the same time, press the [ AMS ] (MD) knob to display “SYS

version”.

3. Turn the [ AMS ] (CD) knob and when “MD Test” is displayed, press the [ AMS ] (MD) knob.

4. Turn the [ AMS ] (MD) knob to display “[Service]”, and press the [YES] button.

5. Turn the [ AMS ] (MD) knob to display “Iop Write” (C05), and press the [YES] button.

lL lL lL

6. The display becomes “Ref=@@@.@” (@ is an arbitrary number) and the numbers which can be changed will blink.

7. Input the IOP value written on the optical pick-up label. To select the number: Turn the [ AMS ] (MD) knob. To select the digit : Press the [ AMS ] (MD) knob.

8. When the [YES] button is pressed, the display becomes “Measu=@@@.@” (@ is an arbitrary number).

9. As the adjustment results are recorded for the 4 value. Leave it as it is and press the [YES] button.

10. “Complete!” will be displayed momentarily. The v alue will be recorded in the non-v olatile memory and the display will become “Iop Write (C05)”.

11. Press the [MENU/NO] button to display “MD Test”.

12. Press the ?/1 button to turn the power off.

Display Procedure:

1. Press the ?/1 button to turn on the power.

2. Press the [ AMS ] (CD) knob and [INPUT] button at the same time, press the [ AMS ] (MD) knob to display “SYS

version”.

3. Turn the [ AMS ] (CD) knob and when “MD Test” is displayed, press the [ AMS ] (MD) knob.

4. Turn the [ AMS ] (MD) knob to display “[Service]”, and press the [YES] button.

5. Turn the [ AMS ] (MD) knob to display “Iop Read” (C26), and press the [YES] button.

lL lL

6. “@@.@/##.#” is displayed and the recorded contents are displayed. @@.@: indicates the IOP value on the optical pick-up label. ##.# : indicates the IOP value after adjustment

7. To end, press the

[MENU/NO] button to display “Iop Read” (C26).

8. Press the [MENU/NO] button to display “MD Test”.

9. Press the ?/1 button to turn the power off.

CHECKS PRIOR TO PARTS REPLACEMENT AND ADJUSTMENTS IN MD

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”.

Laser power check (5-7-2 : See page 36)

Auto check (5-7-4 : See page 37)

Temperature compensation offset check (5-7-1 : See page 36)

Criteria for Determination (Unsatisfactory if specified value is not satisfied)

• 0.93 mW power Specified value : 0.84 to 0.92 mW (KMS-262A)

0.90 to 0.96 mW (KMS-262E)

• 8.65 mW power Specified value : 8.1 to 8.7 mW (KMS-262A)

8.4 to 8.9 mW (KMS-262E)

• Iop (at 8.65mW) Labeled on the optical pick-up Iop value ± 10mA

• Unsatisfactory if displayed as “NG: XXXX” NG (XXXX is arbitrary number)

• Unsatisf actory if displayed as “T=@@ (##) [NG]” NG (@@, ## are both arbitrary numbers)

• Clean the optical pick-up

• Adjust again

• Replace the optical pick-up

• Check for disconnection of the circuits around

D101 (BD (MD) board)

• Check the signals around IC101, IC151, CN102, CN103 (BD (MD) board)

Measure if unsatisfactory:

MXD-D400

Note:

The criteria for determination above is intended merely to determine if satisfactory or not, and does not serve as the specified value for adjustments. When performing adjustments, use the specified values for adjustments.

MXD-D400

CD SECTION

CD-TEXT TEST DISC

This unit is able to display the test data (character information) written in the CD on its fluorescent indicator tube. The CD-TEXT TEST DISC (TGCS-313:4-989-366-01) is used for checking the display. To check, perform the following procedure.

Checking Method:

1. Turn ON the power, set the disc to the disc table with the “test disc” label facing up, and chuck the disc.

2. Press the H (CD) button and play back the disc.

3. The following will be displayed on the fluorescent indicator tube. Display : 1KHZ

4. Rotating [ AMS ] (CD) knob, select the track. The text data of each track will be displayed.

For details of the displayed contents for each track, refer to “Table 1 : CD-TEXT TEST DISC TEXT Data Contents” and “Table 2 : CDTEXT TEST DISC Recorded Contents and Display”.

Restrictions in CD-TEXT Display

In this unit, some special characters will not be displayed properly. These will be displayed as a space or a character resembling it. For details, refer to “Table 2 : CD-TEXT DISC Recorded Contents and Display”.

Table 1 : CD-TEXT TEST DISC TEXT Data Contents (TRACKS No. 1 to 41:Normal Characters)

TRACK

Note: The contents of Track No. 1 to 41 are the same as those of the current TEST DISC-their titles are displayed.

No.

1 1kHz/0dB/L&R 22 1kHz/–90dB/L&R 2 20Hz/0dB/L&R 23 Infinity Zero w/o emphasis//L&R 3 40Hz/0dB/L&R 24 Infinity Zero with emphasis//L&R 4 100Hz/0dB/L&R 25 400Hz+7kHz(4:1)/0dB/L&R 5 200Hz/0dB/L&R 26 400Hz+7kHz(4:1)/–10dB/L&R 6 500Hz/0dB/L&R 27 19kHz+20kHz(1:1)/0dB/L&R 7 1kHz/0dB/L&R 28 19kHz+20kHz(1:1)/–10dB/L&R 8 5kHz/0dB/L&R 29 100Hz/0dB/L*

9 7kHz/0dB/L&R 30 1kHz/0dB/L* 10 10kHz/0dB/L&R 31 10kHz/0dB/L* 11 16kHz/0dB/L&R 32 20kHz/0dB/L* 12 18kHz/0dB/L&R 33 100Hz/0dB/R* 13 20kHz/0dB/L&R 34 1kHz/0dB/R* 14 1kHz/0dB/L&R 35 10kHz/0dB/R* 15 1kHz/–1dB/L&R 36 20kHz/0dB/R* 16 1kHz/–3dB/L&R 37 100Hz Squer Wave//L&R 17 1kHz/–6dB/L&R 38 1kHz Squer Wave//L&R 18 1kHz/–10dB/L&R 39 1kHz w/emphasis/–0.37dB/L&R 19 1kHz/–20dB/L&R 40 5kHz w/emphasis/–4.53dB/L&R 20 1kHz/–60dB/L&R 41 16kHz w/emphasis/–9.04dB/L&R 21 1kHz/–80dB/L&R

0DB

Displayed Contents

TRACK

No.

Displayed Contents

Table 2: CD-TEXT TEST DISC Recorded Contents and Display

(In this unit, some special characters cannot be displayed. This is not a fault)

MXD-D400

TRACK

No.

42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67

Recorded contents

! ” # $ %& ´ (21h to 27h)1kHz 0dB L&R ( ) + , – . / (28h to 2Fh)

01234567 (30h to 37h) 8 9 : ; < = > ? (38h to 3Fh)

@A B C D E F G (40h to 47h)

H I J K L M N O (48h to 4Fh) P Q R S T U VW (50h to 57h) X Y Z [ ¥ ] ^ _ (58h to 5Fh)

a b c d e f g (60h to 67h)

′

h i j k l m n o (68h to 6Fh) p q r s t u v w (70h to 77h) xyz{I}

i¢£¤¥

C ª

•±23

†

º ¿ (B8h to BFh)

(78h to 7Fh)

§ (A0h to A7h) 8859-1

–

µ ¶ • (B0h to B7h)

′

14123

(A8h to AFh)

А Б В Г Д ЕЖЗ (C0h to C7h) ИЙКЛМНОП (C8h to CFh) D СТУФХЦ ШЩЪЫЬY

(D0h to D7h)

ß (D8h to DFh) à á â ã ä åæ ç (E0h to E7h) ийклмноп (E8h to FFh) ∂ стуфхц÷ (F0h to F7h) шщъыьy я (F8h to FFh)

No.66 No.67 to No.99

Display

T All the same T All the same T All the same T All the same T All the same T All the same T All the same T All the same T All the same T All the same T All the same T All the same

(A0h to A7h) 8859-1 (A8h to AFh) (B0h to B7h)

(B8h to BFh) AAAAAA C (C0h to C7h) EEEEIIII (C8h to CFh) D N OOOO O (D0h to D7h)

O U U U U Y (D8h to DFh)

aaaaaa c (E0h to E7h) eeeeiiii (E8h to EFh) dnooooo (F0h to F7h) ouuuuy y (F8h to FFh)

T All the same T All the same

T All the same

MXD-D400

SECTION 2

GENERAL

This section is extracted from instruction manual.

Main unit

ALPHABETICAL ORDER

A – I

ALBUM wh AMS wa wg CD SYNCHRO NORMAL/HIGH CLEAR ws Disc tray 3 DISPLAY ql Display window wf EJECT 6 GROUP ON/OFF 9 GROUP SKIP 0 INPUT qa

J – Z

MD slot 5 MDLP indicator 7 MENU/NO wd OPEN/CLOSE 2 PHONES jack es PHONE LEVEL ed PLAY MODE qj wj REC LEVEL qd REC MODE 8 REC z qs STANDBY indicator ef TIME qk wk YES w;

BUTTON DESCRIPT

?/1 (power/standby) 1 H (play) qf wl

X (pause) qh e; x (stop) qg ea

wdwf

waws

qfqg

Remote control

ALPHABETICAL ORDER

A – M

ALBUM/GROUP -/+ qf

CD MD select wk CD SYNCHRO NORMAL/

HIGH wa CLEAR 8 DISPLAY wg FADER ws GROUP ON/OFF wd INPUT wj MENU/NO wf MUSIC SYNC 9

N – Z

NAME EDIT/SELECT 6 number buttons 7 PLAY MODE 3 REC MODE 2 REC-IT 0 REPEAT qh SCROLL wh SLEEP qg T.REC qd TIME 4 YES 5

BUTTON DESCRIPTIO

. / > (skip)qk ?/1 (power/standby) 1 m / M (search) qj

H (play) w; X (pause) qa x (stop) qs z (record) ql

DISASSEMBLY

• This set can be disassembled in the order shown below.

3-1. DISASSEMBLY FLOW

SET

3-2. CASE (409538)

(Page 18)

MXD-D400

SECTION 3

3-4. MD MECHANISM DECK

(MDM-7S2C) (Page 19)

3-9. HOLDER SECTION

(Page 21)

3-10.OVER WRITE HEAD

(HR901) (Page 22)

3-11.OPTICAL PICK-UP

(KMS-262E) (Page 22)

3-6. TRANSFORMER BOARD

(Page 20)

3-8. FRONT PANEL BLOCK

SECTION (Page 21)

3-12.BD (MD) BOARD

(Page 23)

3-13.LOADING MOTOR ASSY (M103),

SPINDLE NOTOR ASSY (M101), SLED MOTOR ASSY (M102) (Page 23)

3-3. LOADING PANEL (CD)

3-5. CD MECHANISM DECK

3-14.TRAY (66)

(Page 24)

(Page 18)

(CDM66C-30B61M) (Page 19)

3-15.BD (CD) BOARD

(Page 25)

3-7. MAIN BOARD

(Page 20)

3-16.OPTICAL BLOCK

SECTION (Page 25)

MXD-D400

)

Note: Follow the disassembly procedure in the numerical order given.

3-2. CASE (409538)

case (409538)

two screws (case 3 TP2)

3-3. LOADING PANEL (CD)

four claws

loading panel (CD)

cam (66)

two screws (case 3 TP2

Rotate the cam (66) with a screwdriver.

3-4. MD MECHANISM DECK (MDM-7S2C)

)

two step screws

two insulators

two screws

two harnesses

(+BVTP3

MD mechanism deck (MDM-7S2C)

two step screws

two insulators

two wires (flat type (17 core : CN9, 27 core : CN10)

MXD-D400

3-5. CD MECHANISM DECK (CDM66C-30B61M)

three screws

CD mechanism deck (CDM66C-30B61M)

(+BVTP3

two wires (flat type) (25 core : CN5, 9 core : CN4)

connector (CN6)

MXD-D400

)

3-6. TRANSFORMER BOARD

transformer board

screw (+BVTT3

connector (CN652)

four screws (+BVTT3

connector (CN1)

connecto (CN2)

3-7. MAIN BOARD

two wires (flat type) (25 core : CN5, 17 core : CN9)

two screws (+BVTP3

connector (CN6)

wire (flat type) (9 core) (CN4)

two connectors (CN1, CN2)

main board

wire (flat type) (19 core) (CN11

wire (flat type) (27 core) (CN10)

four screws (+BVTP3

× 8

)

3-8. FRONT PANEL BLOCK SECTION

screw (+BVTP3

front panel

block section

two screws

(+BVTP3

claw

two harnesses

wire (flat type) (CN11)

claw

MXD-D400

connector (CN12)

two screws (+BVTP3

3-9. HOLDER SECTION

tension spring (holder)

three screws (+BVTP3

holder section

hoo

MXD-D400

)

3-10. OVER WRITE HEAD (HR901)

over write head

(HR901)

screw (P 1.7 × 6)

3-11. OPTICAL PICK-UP (KMS-262E)

main shaft

flexible board

screw (+B 2 × 6)

base (BU-D)

optical pick-up (KMS-262E)

two screws (+KTP 2

screw (+B 2 × 6

base (BU-A)

3-12. BD (MD) BOARD

Remove two solders (sled motor).

Remove two solders (spindle motor).

MXD-D400

flexible board (CN101)

M102

M101

screw (M1.7)

BD (MD) board

connector (CN104)

Remove two solders (loading motor).

M103 S102

Remove three solders .

3-13. LOADING MOTOR ASSY (M103), SPINDLE MOTOR ASSY (M101), SLED MOTOR ASSY (M102)

lever (head)

torsion spring (SPDL)

bushing (rivet)

belt (loading)

two screws

(PWH 1.7 × 2.5)

loading motor assy (M103)

three tapping screws (M1.7)

spindle motor assy (M101)

gear (sa)

two screws (+PWH 1.7 × 2.5)

sled motor ass (M102)

MXD-D400

3-14. TRAY (66)

Push the switch (S151) and releace two claws.

switch (S151)

claw of tray (66)

claw of lever (SW)

hook

Turn the cam to th

direction of arrow.

hook

tray (66)

hook

3-15. BD (CD) BOARD

BD (CD) board

Remove four solders.

flexible flat cable

(16core) (CN101)

MXD-D400

3-16. OPTICAL BLOCK SECTION

shaft (BU holder)

cam (66)

optical block section

floating screw

Rotate the cam (66) in the direction of 2 to move the shaft (BU holder) upper.

MXD-D400

SECTION 4

TEST MODE

Setting the Test Mode Procedure:

1. Press the ?/1 button to turn the power on.

2. Press the [ AMS ] (CD) knob and [INPUT] button at the same time, press the [ AMS ] (MD) knob.

3. Turn the [ AMS ] (CD) knob to select the menu.

4. Press the [ AMS ] (CD) knob to execute the test mode.

Releasing the Test Mode Procedure 1:

1. Press the [ AMS ] (CD) knob and [INPUT] button at the same time, press the [ AMS ] (MD) knob.

2. Press the ?/1 button to turn the power off.

Procedure 2:

1. Pull out the AC cord to turn the power off.

Contents of test mode

No. Display Function

1 SYS Version System version display 2 BU Test CD BU test mode 3 SERVICE CD Service mode 4 MD Version MD version display 5 MD Test MD test mode* 6 Initialize MD initialize 7 FL ALL ON Fluorescent indicator tube test 8 FL ALL OFF Fluorescent indicator tube test

9 FL ITIMATSU Fluorescent indicator tube test 10 LED CHECK LED check 11 KEY CHECK Keyboard check 12 RM CHECK Remote commander check 13 Play Speed CD x4 speed

* Details of MD test mode is described on and after page 28.

l lL lL

System V ersion Display Procedure:

lL lL

1. Enter the test mode, then turn the

[ AMS ] (CD) knob to display “SYS Version”, and press the [ AMS ] (CD) knob.

2. The system version is displayed.

3. To exit from this mode, turn the [ AMS ] (CD) knob.

4. Press the ?/1 button to turn the power off.

CD T est Mode Procedure:

1. Enter the test mode, then turn the [ AMS ] (CD) knob to display “BU Test”, and press the [ AMS ] (CD) knob.

lL lL

2. “bdt S CURVE” is displayed. This test mode is used in the Electrical Adjustment section.

3. Turn the [ AMS ] (CD) knob. “bdt RAM REA”, “bdt RAM WRI”, “bdt COMOUT”, “bdt FB TUNE”, and “bdt ERR RATE”

are displayed.

4. To exit from this mode, press the [MENU/NO] button and turn the [ AMS ] (CD) knob to display “bdt ERR RATE”.

5. Press the [ AMS ] (CD) knob and [INPUT] button at the same time, press the [ AMS ] (MD) knob.

6. Press the ?/1 button to turn the power off.

CD service Mode Procedure:

1. Enter the test mode, then turn the [ AMS ] (CD) knob to display “SERVICE”, and press the [ AMS ] (CD) knob.

2. “SERVICE MOD” is displayed.

3. Press the [SKIP] button, the “SLED OUT” is displayed and the sled moves to the outermost position.

4. Press the [GROUP ON/OFF] button, the “SLED IN” is displayed and the sled moves to the innermost position.

5. Press the [REC] button, the “TRV ON” is displayed.

6. Press the [ AMS ] (CD) knob, then “SERVICE MOD” is displayed again.

7. To exit from this mode, press the [ AMS ] (CD) knob and [INPUT] button at the same time, press the [ AMS ] (MD)

knob.

8. Press the ?/1 button to turn the power off.

Note: Always move the pick-up to the most inside position when exiting from this mode.

MD V ersion Display Procedure:

1. Enter the test mode, then turn the [ AMS ] (CD) knob to display “MD Version”, and press the [ AMS ] (CD) knob.

MXD-D400

2. The MD version is displayed.

3. To exit from this mode, turn the [ AMS ] (CD) knob.

4. Press the ?/1 button to turn the power off.

Initialize Procedure:

1. Enter the test mode, then turn the [ AMS ] (CD) knob to display “Initialize”, and press the [ AMS ] (CD) knob.

2. MD is Initialised.

3. To exit from this mode, press the [ AMS ] (CD) knob and [INPUT] button at the same time, press the [ AMS ] (MD) knob.

4. Press the ?/1 button to turn the power off.

FL ALL ON Mode Procedure:

1. Enter the test mode, then turn the [ AMS ] (CD) knob to display “FL ALL ON”, and press the [ AMS ] (CD) knob.

2. All segments of fluorescent indicator tube turn on.

3. To exit from this mode, press the [MENU/NO] button, then “FL ALL ON” is displayed again.

4. Press the ?/1 button to turn the power off.

FL ALL OFF Mode Procedure:

1. Enter the test mode, then turn the [ AMS ] (CD) knob to display “FL ALL OFF”, and press the [ AMS ] (CD) knob.

2. All segments of fluorescent indicator tube turn off.

3. To exit from this mode, press the [MENU/NO] button, then “FL ALL OFF” is displayed again.

4. Press the ?/1 button to turn the power off.

lL lL

FL ITIMATSU Mode Procedure:

1. Enter the test mode, then turn the [ AMS ] (CD) knob to display “FL ITIMA TSU”, and press the [ AMS ] (CD) knob.

2. Checkered patterns of segments are displayed.

3. To exit from this mode, press the [MENU/NO] button, then “FL ITIMATSU” is displayed again.

4. Press the ?/1 button to turn the power off.

LED Check Mode Procedure:

[ AMS ] (CD) knob to display “LED CHECK”, and press the [ AMS ] (CD) knob.

1. Enter the test mode, then turn the

2. Turn the [ AMS ] (CD) knob, the LED on front panel will repeat lighting on and off.

3. To exit from this mode, press the [MENU/NO] button, then “LED CHECK” is displayed again.

4. Press the ?/1 button to turn the power off.

KEY Check Mode Procedure:

1. Enter the test mode, then turn the [ AMS ] (CD) knob to display “KEY CHECK”, and press the [ AMS ] (CD) knob.

2. “Got 1 keys” is displayed.

3. Press the buttons and knobs, and when all the buttons and knobs are pressed, “Got 27 keys” will be displayed.

4. To exit from this mode, press the [ AMS ] (CD) knob and [INPUT] button at the same time, press the [ AMS ] (MD)

knob.

5. Press the ?/1 button to turn the power off.

Remote Commander Check Procedure:

1. Enter the test mode, then turn the [ AMS ] (CD) knob to display “RM CHECK”, and press the [ AMS ] (CD) knob.

2. Press the H key on the remote commander, then “Got PlayCom” is displayed.

3. To exit from this mode, press the [MENU/NO] button, then “RM CHECK” is displayed again.

4. Press the ?/1 button to turn the power off.

CD Play Speed Selection Mode Procedure:

1. Enter the test mode, then turn the [ AMS ] (CD) knob to display “Play Speed”, and press the [ AMS ] (CD) knob.

2. “x4 Play” is displayed. If a CD is in the deck, pressing the H (CD) button executes the 4 times speed playback.

3. Press the x button to stop the playback.

4. To exit from this mode, press the [MENU/NO] button, then “Play Speed” is displayed again.

5. Press the ?/1 button to turn the power off.

MXD-D400

MD SECTION

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 [EJECT] button is pressed while the disc is rotating during continuous playback, continuous recording, etc., the disc will not stop rotating. Therefore, it will be ejected while rotating. Be sure to press the [EJECT] button after pressing the [MENU/NO] button and the rotation of disc is stopped.

1-1. Recording laser emission mode and operating buttons

• Continuous recording mode (CREC 2MODE) (C37)

• Laser power check mode (LDPWR CHECK) (C13)

• Laser power adjustment mode (LDPWR ADJUST) (C04)

• Comparison with initial Iop value written in nonvolatile memory (Iop Compare) (C27)

• Write current Iop value read in nonvolatile memory using microprocessor (Iop NV Save) (C06)

• Traverse (MO) check (EF MO CHECK) (C14)

• Traverse (MO) adjustment (EF MO ADJUST) (C07)

• When pressing the [REC ] button.

2. SETTING THE TEST MODE

1. Press the ?/1 button to turn the power on.

2. Press the [ AMS ] (CD) knob and [INPUT] button at the same time, press the [ AMS ] (MD) knob to display “SYS

version”.

3. Turn the [ AMS ] (CD) knob and when “MD Test” is displayed, press the [ AMS ] (MD) knob.

When the test mode is set, “[Check]” will be displayed. Turn the [ AMS ] (MD) knob switches between the following three groups; ···Tt [Check] Tt [Service] Tt [Develop] Tt ···.

Note: Do not use the test mode in the [Develop] group.

If used, the unit may not operate normally. If the [Develop] group is set accidentally, press the [MENU/NO] button immediately to exit the [Develop] group.

3. RELEASING THE TEST MODE

Procedure 1:

Press the [ AMS ] (CD) knob and [INPUT] button at the same time, press the [ AMS ] (MD) knob, press the ?/1 button

to turn the power off.

Procedure 2:

Pull out the AC cord to return the power off.

4. BASIC OPERATIONS OF THE TEST MODE

All operations are performed using the [ AMS ] (MD) knob, [YES] button, and [MENU/NO] button. The functions of these buttons are as follows.

Function name Function

[ AMS ] (MD) knob (turn) Select. [ AMS ] (MD) knob (push) Set Sub menu.

[YES] button Proceeds onto the next step. Finalizes input. [MENU/NO] button Returns to previous step. Stops operations.

MXD-D400

5. SELECTING THE TEST MODE

There are 26 types of test modes as shown below. The groups can be switched by turning the [ AMS ] (MD) knob. After selecting the group to be used, press the [YES] button. After setting a certain group, turn the [ AMS ] (MD) knob switches between these

modes. Refer to “Group” in the table for details can be selected. All items used for servicing can be treated using group [Service]. So be carefully not to enter other groups by mistake.

Note: Do not use the test mode in the [Develop] group.

If used, the unit may not operate normally. If the [Develop] group is set accidentally, press the

[MENU/NO] button immediately to exit the [Develop] group.

Display

AUTO CHECK Err Display TEMP ADJUS LDPWR ADJUS Iop Write Iop NV Save EF MO ADJUS EF CD ADJUS FBIAS ADJUS AG Set (MO) AG Set (CD) TEMP CHECK LDPWR CHECK EF MO CHECK EF CD CHECK FBIAS CHECK ScurveCHECK VERIFYMODE DETRK CHECK 0920 CHECK Iop Read Iop Compare ADJ CLEAR INFORMATION CPLAY 2MODE CREC 2MODE

No.

Automatic self-diagnosis

C01

Error history display, clear

C02

Temperature compensation offset adjustment

C03

Laser power adjustment

C04

Iop data writing

C05

Writes current Iop value in read nonv olatile memory using microprocessor

C06

Traverse (MO) adjustment

C07

Traverse (CD) adjustment

C08

Focus bias adjustment

C09

Auto gain output level adjustment (MO)

C10

Auto gain output level adjustment (CD)

C11

Temperature compensation offset check

C12

Laser power check

C13

Traverse (MO) check

C14

Traverse (CD) check

C15

Focus bias check

C16

S-curve check

C17

Nonvolatile memory check

C18

Detrack check

C19

Most circumference check

C25

Iop data display

C26

Comparison with initial Iop value written in nonvolatile memory

C27

Initialization of nonvolatile memory for adjustment values

C28

Display of microprocessor version, etc.

C31

Continuous playback mode

C36

Continuous recording mode

C37

Details

Mark

Group

Check Service

• For details of each adjustment mode, refer to “SECTION 5. Electrical Adjustments”. For details of “Err Display” (C02), refer to “Self-Diagnosis Function” on page 2.

• If a different mode has been selected by mistake, press the [MENU/NO] button to release that mode.

• Modes with (×) in the Mark column are not used for servicing and therefore are not described in detail. If these modes are set acciden-

tally, press the [MENU/NO] button to release the mode immediately.

MXD-D400

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 [ AMS ] (MD) knob and display “CPLAY 2MODE” (C36). (3) Press the [YES] button to change the display to “CPLAY 2MID”. (4) When access completes, the display changes to “C = AD = ”.

Note: The numbers “ ” displayed show you error rates and ADER.

2. Changing the parts to be played back (1) Press the [YES] button during continuous playback to change the display as below.

When pressed another time, the parts to be played back can be moved.

(2) When access completes, the display changes to “C = AD = ”.

Note: The numbers “ ” displayed show you error rates and ADER.

3. Ending the continuous playback mode (1) Press the [MENU/NO] button. The display will change to “CPLAY 2MODE” (C36). (2) Press the [EJECT] button and take out the disc.

Note: The playback start addresses for IN, MID, and OUT are as follows.

“CPLAY 2MID” t “CPLAY 2OUT” t “CPLA Y2IN”

IN 40h cluster MID 300h cluster OUT 700h cluster

5-2. Operating the Continuous Recording Mode (Use only when performing self-recording/palyback check)

1. Entering the continuous recording mode (1) Set a recordable disc in the unit. (2) Turn the [ AMS ] (MD) knob and display “CREC 2MODE” (C37).

(3) Press the [YES] button to change the display to “CREC 2MID”. (4) When access completes, the display changes to “CREC 1 ( ” and “ REC ” lights up.

Note: The numbers “ ” displayed shows you the recording position addresses.

2. Changing the parts to be recorded (1) When the [YES] button is pressed during continuous recording, the display changes as below.

“CREC 2MID” t “CREC 2OUT” t “CREC 2IN”

When pressed another time, the parts to be recorded can be changed. “ REC ” goes off.

(2) When access completes, the display changes to “CREC 2 (

Note: The numbers “ ” displayed shows you the recording position addresses.

” and “ REC ” lights up.

3. Ending the continuous recording mode (1) Press the

[MENU/NO] button. The display changes to “CREC 2MODE” (C37) and “ REC

” goes off.

(2) Press the [EJECT] button and take out the disc.

Note 1: The recording start addresses for IN, MID, and OUT are as follows.

IN 40h cluster MID 300h cluster OUT 700h cluster

Note 2: The [MENU/NO] button can be used to stop recording anytime. Note 3: Do not perform continuous recording for long periods of time above 5 minutes. Note 4: During continuous recording, be careful not to apply vibration.

6. FUNCTIONS OF OTHER BUTTONS

Function

H (MD)

x (MD)

REC MODE PLAY MODE (MD) DISPLAY EJECT REC z

Contents

Sets continuous playback when pressed in the STOP state. When pressed during continuous playback, the tracking servo turns ON/OFF.

Stops continuous playback and continuous recording. Switches between the pit and groove modes when pressed. Switches the spindle servo mode (CLV S y CLV A). Switches the displayed contents each time the button is pressed Ejects the disc Starts recording from the present position while servo is turning on.

+ 70 hidden pages

Sony MXDD-400 Service manual

SELF-DIAGNOSIS FUNCTION

TABLE OF CONTENTS

SERVICING NOTES

GENERAL

DISASSEMBLY

3-1. DISASSEMBLY FLOW

3-2. CASE (409538)

3-3. LOADING PANEL (CD)

3-4. MD MECHANISM DECK (MDM-7S2C)

3-5. CD MECHANISM DECK (CDM66C-30B61M)

3-6. TRANSFORMER BOARD

3-7. MAIN BOARD

3-8. FRONT PANEL BLOCK SECTION

3-9. HOLDER SECTION

3-10. OVER WRITE HEAD (HR901)

3-11. OPTICAL PICK-UP (KMS-262E)

3-12. BD (MD) BOARD

3-13. LOADING MOTOR ASSY (M103), SPINDLE MOTOR ASSY (M101), SLED MOTOR ASSY (M102)

3-14. TRAY (66)

3-15. BD (CD) BOARD

3-16. OPTICAL BLOCK SECTION

TEST MODE