Sony MXDD-3 Service manual

MXD-D3

SERVICE MANUAL

Photo: Gold

U.S. and foreign patents licensed form Dolby Laboratories Licensing Corporation.

CD Section

MD Section

US Model

Canadian Model

AEP Model

UK Model

E Model

Chinese Model

Model Name Using Similar Mechanism NEW CD Mechanism Type CDM14H-5TBD26B Base Unit Name BU-5TBD26B Optical Pick-up Name KSS-213BH/Z-NP Model Name Using Similar Mechanism NEW MD Mechanism Type MDM-5X2B Base Unit Name MBU-5X2B Optical Pick-up Name KMS-262A/J1N

SPECIFICATIONS

COMPACT DISC MINIDISC DECK

– Continued on next page –

MICROFILM

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)”.

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, press the MENU/NO button to exit the mode.

1. Press the x (CD), [CLEAR] (CD), x (MD) and [CLEAR] (MD) buttons at the same time.

2. Press the [ AMS ] (MD) knob and x (MD) button to display “ <0> To Normal”.

3. Turn the [ AMS ] (MD) knob and when “ <5> 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 DP MODE”.

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

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.

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10. Press the [MENU/NO] button to display “ERROR DP MODE” and release the error history mode.

11. To release the test mode, press the ?/1 button to turn the power OFF.

ITEMS OF ERROR HISTORY MODE ITEMS AND CONTENTS

Selecting the Test Mode

Display

total rec Displays the recording time.

Displayed as “rssssssh”. 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 play Displays the play time.

Displayed as “pssssssh”. The time displayed is the total actual play time. Pauses are not counted. The time is displayed in decimal digits from 0h to 65535h.

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 E@@”. 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.

er refresh Mode which erases the “retry err”, “total err”, and “err history” histories.

When returning the unit to the customer after completing repairs, perform this to erase the past error history. After pressing the the history. “Complete!” will be displayed momentarily. Be sure to check the following when this mode has been executed.

• The data has been erased.

• The mechanism operates normally when recording and play are performed.

tm refresh Mode which erases the “total rec” and “total play” histories.

These histories serve as approximate indications of when to replace the optical pick-up. If the optical pickup has been replaced, perform this operation and erase the history. After pressing the the history. “Complete!” will be displayed momentarily. Be sure to check the following when this mode has been executed.

• The data has been erased.

• The mechanism operates normally when recording and play are performed.

[ AMS ] (MD) knob and “er refresh?” is displayed, press the [YES] button to erase

[ AMS ] (MD) knob and “tm refresh?” is displayed, press the [YES] button to erase

Details of History

[ AMS ]

Table of Error Codes

Error Code Error Code Details of Error

E00 No error E01 Disc error. PTOC cannot be read

(DISC ejected)

E02 Disc error. UTOC error

(DISC not ejected)

E03 Loading error E04 Address cannot be read (Servo has deviated)

Details of Error

E05 FOK has deviated E06 Cannot focus (Servo has deviated) E07 Recording retry E08 Recording retry error E09 Playback retry error

(Access error)

E0A Playback retry error (C2 error)

SECTION 1

SERVICING NOTES

TABLE OF CONTENTS

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

1. SERVICING NOTES ............................................... 4

2. GENERAL ................................................................... 17

3. DISASSEMBLY ......................................................... 18

4. TEST MODE.............................................................. 24

5. ELECTRICAL ADJUSTMENTS......................... 30

6. DIAGRAMS

6-1. Note f or Printed Wiring Boards and

Schematic Diagrams ....................................................... 41

6-2. Pr inted Wiring Board – BD (CD) Board – .................... 42

6-3. Schematic Diagram – BD (CD) Board – ....................... 43

6-4. Schematic Diagram – BD (MD) Board (1/2) – ............. 44

6-5. Schematic Diagram – BD (MD) Board (2/2) – ............. 45

6-6. Pr inted Wiring Board – BD (MD) Board – ................... 46

6-7. Schematic Diagram

– MAIN (1/3) /LOADING Boards – .............................. 47

6-8. Schematic Diagram – MAIN Board (2/3) – .................. 48

6-9. Schematic Diagram – MAIN Board (3/3) – .................. 49

6-10. Printed Wiring Board – MAIN Board (Side A) – ......... 50

6-11. Printed Wiring Boards

– MAIN (Side B)/LOADING Boards – ......................... 51

6-12. Printed Wiring Boards

– DISPLAY/PWSW/HP Boards – .................................. 52

6-13. Schematic Diagram

– DISPLAY/PWSW/HP Boards – .................................. 53

6-14. Printed Wiring Board – TRANS Board –...................... 54

6-15. Schematic Diagram – TRANS Board –......................... 55

6-16. Printed Wiring Board – SW Board –............................. 55

6-17. Schematic Diagram – SW Board – ................................ 55

6-18. IC Pin Function Description ........................................... 63

7. EXPLODED VIEWS ................................................ 72

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. Follow the man ufacturers’ instructions to use these instruments.

2. A battery-operated A C 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 must have an accurate lowvoltage scale. The Simpson 250 and Sanwa SH-63T r d are e xamples 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

voltmeter (0.75 V)

8. ELECTRICAL PARTS LIST ............................... 79

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.

ATTENTION AU COMPOSANT AYANT RAPPORT

À LA SÉCURITÉ!

LES COMPOSANTS IDENTIFIÉS P AR UNE MARQUE 0 SUR LES DIAGRAMMES SCHÉMA TIQ UES ET LA LISTE DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE REMPLACER CES COMPOSANTS QUE PAR DES PIÈCES SONY DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.

Laser component in this product is capable of emitting radiation exceeding the limit for Class 1.

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

CAUTION

Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent type recommended by the manufacturer. Discard used batteries according to the manufacturer’s instructions.

ADVARSEL!

Lithiumbatteri-Eksplosionsfare ved fejlagtig håndtering.

Udskiftning må kun ske med batteri

af samme fabrikat og type.

Levér det brugte batteri tilbage til leverandøren.

This caution label is located inside the unit.

CAUTION

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

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.

ADVARSEL

Eksplosjonsfare ved feilaktig skifte av batteri.

Benytt samme batteritype eller en tilsvarende type

anbefalt av apparatfabrikanten.

Brukte batterier kasseres i henhold til fabrikantens

instruksjoner.

VARNING

Explosionsfara vid felaktigt batteribyte. Använd samma batterityp eller en likvärdig typ som rekommenderas av apparattillverkaren. Kassera använt batteri enligt gällande föreskrifter.

VAROITUS

Paristo voi räjähtää, jos se on virheellisesti asennettu. V aihda paristo ainoastaan laite valmistajan suosittelemaan tyyppiin. Hävitä käytetty paristo valmistajan ohjeiden mukaisesti.

Flexible Circuit Board Repairing

• Keep the temperature of the soldering iron around 270 ˚C during 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.

Notes on chip component replacement

• Never reuse a disconnected chip component.

• Notice that the minus side of a tantalum capacitor may be damaged by heat.

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 objective 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.

Note:

Be sure to connect all wires (including FFC) in the MD section before applying power or ICs may be damaged.

MODEL IDENTIFICATION

— BACK PANEL —

Model Part No.

AEP, UK models 4-220-708-0s Canadian model 4-220-708-1s Singapore model 4-220-708-3s US model 4-220-708-4s Chinese model 4-220-708-5s

Part No.

HOW T O OPEN THE DISC TABLE WHEN PO WER SWITCH TURNS OFF.

In removing the front panel with the power not supplied, insert a flat-blade screwdriver into a hole at the bottom of loading section and rotate it counterclockwise. Then, draw out the disc table.

disc table

flat-blade screwdriver

CLEANING OBJECTIVE LENS OF OPTICAL PICK-UP IN MD

• In cleaning the objective lens of optical pick-up, move the mechanism deck by the following method.

Method:

1. Eject the disc, if loaded.

2. Disconnect the power cord from the socket to shut off the power supply.

3. Move the part C toward the direction D, while shifting the pawl in section A toward B using tweezers, etc.

4. Moving the part C freely, clean the objective lens at the position easy for cleaning.

objective lens of optical pick-up

CLEANING OBJECTIVE LENS OF OPTICAL PICK-UP IN CD

• In cleaning the objective lens of optical pick-up, move the mechanism deck by the following method.

Method:

1. Eject the disc, if loaded.

2. Disconnect the power cord from the socket to shut off the power supply.

3. Rotating the gear in section A by your fingers clean the objective lens at the position easy for cleaning.

section

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.

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) TEO : TRK error signal (Traverse adjustment) VC : Reference level for checking the signal RF : RF signal (Check jitter)

Mechanism deck

TEO

IOP

I+3V

GND

RF VC TEO

5P Connector

CN110

6P connecto

RF VC

for

TEO

MDM-

IOP

I+3V

IOP I+3V

GND

VC RF

for

TEO IOP

MDM-5

I+3V

GND

IOP DA TA RECORDING AND DISPLAY WHEN OPTICAL PICK-UP AND NON-V OLATILE 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 r ecording 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 (IC171 of BD (MD) board), record the IOP value on the optical pick-up according to the following procedure.

Record Procedure:

1. Press the x (CD), [CLEAR] (CD), x (MD) and [CLEAR] (MD) buttons at the same time.

2. Press the [ AMS ] (MD) knob and x (MD) button to display “ <0> To Normal”.

3. Turn the [ AMS ] (MD) knob and when “ <5> 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” (C28), and press the [YES] button.

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 6 value. Leave it as it is and press the [YES] button.

10. “Complete!” will be displayed momentarily. The value will be recorded in the non-volatile memory and the display will become “Iop Write”.

11. Press the ?/1 button to turn the power OFF.

Display Procedure:

1. Press the x (CD), [CLEAR] (CD), x (MD) and [CLEAR] (MD) buttons at the same time.

2. Press the [ AMS ] (MD) knob and x (MD) button to display “ <0> To Normal”.

3. Turn the [ AMS ] (MD) knob and when “ <5> 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” (C27).

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 OFF.

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[ AMS ] (MD) knob or [MENU/NO] button to display “Iop Read”. Press the ?/1 b utton to turn the power

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 (6-2 : See page 32)

Traverse check (6-3 : See page 32)

Focus bias check (6-4 : See page 33)

C PLAY check (6-5 : See page 33)

Self-recording/playback check (6-6 : See page 33)

Temperature compensation offset check (6-1 : See page 32)

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

• 0.9 mW power Specified value : 0.80 to 0.96 mW

• 8.4 mW power Specified value : 8.2 to 8.6 mW

Iop (at 8.4mW)

• Labeled on the optical pick-up Iop value ± 10mA

• Travers e waveform Specified value : Below 10% offset

• Error rate check Specified value : For points a, b, and c C1 error : About 200 AD error : below 2

• Error rate check Specified value: a. When using test disc (MDW-74/AU-1)

C1 error : Below 80 AD error : Below 2

b. When using check disc (TDYS-1)

C1 error : Below 50

• CPLAY error rate check Specified value: C1 error : Below 80 AD error : Below 2

• Unsatisfactory if displayed as T=@@ (##) [NG” NG (@@, ## are both arbitrary numbers)

• Clean the optical pick-up

• Adjust again

• Replace the optical pick-up

If always unsatisfactory:

• Replace the overwrite head

• Check for disconnection of the circuits around the overwrite head

If occasionally unsatisfactory:

• Check if the overwrite head is distorted

• Check the mechanism around the sled

• Check for disconnection of the circuits around D101 (BD (MD) board)

• Check the signals around IC101, IC121, CN102, CN103 (BD (MD) board)

Measure if unsatisfactory:

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.

SERVICE MODE

This set provides various modes for the service. Enter the service mode through the procedure given below, and select the desired mode.

Procedure:

1. Press the x (CD), [CLEAR] (CD), x (MD) and [CLEAR] (MD) buttons at the same time.

2. Press the [ AMS ] (MD) knob and x (MD) button to display “ <0> To Normal”.

3. At this time, rotating the [ AMS ] (MD) knob can select all modes. For the contents of mode, see the following table.

4. To e xit from the service mode, press the x (MD) button and [ AMS ] (MD) knob simultaneously to display “<0> T o Normal”, then press the [ AMS ] (MD) knob. If this operation failed, press the ?/1 button to turn the power OFF.

Contents of test mode

No. Display Function

0 <0> To Normal Exit from test mode 1 <1> Virsion Microcomputer V irsion display 2 <2> FLD FL display test 3 <3> Key/Jog Key/Jog input test 4 <4> CD Test CD all sorts test 5 0> AGING CD aging mode 6 1> COMMAND Command transfer menu 7 2> ERROR C1, C2 error display 8 3> SPEED X1 Disc speed selection

9 4> ISRC ISRC display 10 5> CHECK8 Check 8 cm display 11 6> AUTO G Auto gain display 12 7> HENSHIN Decentiering display 13 8> PORT Port selection 14 9> AMS AMS display 15 A> TRK ON TRK ON/OFF display 16 <5> MD Test MD all sorts test 17 <6> Retry & TOC MD TOC off & Retry test 18 <7> Initial All reset 19 <8> Special Command, Sircs test 20 <9> Dump Microcomputer Dump mode

Microcomputer Ver sion Display

Procedure:

1. Enter the service mode, then rotate [ AMS ] (MD) knob to display “<1> Version”, and press the [ AMS ] (MD).

2. The CD and MD microcomputer versions are displayed on the upper line and lower line respectively.

3. To exit from the mode, press the x (MD) button and [ AMS ] (MD) knob simultaneously.

FL Display Test

Procedure:

1. Enter the service mode, then rotate [ AMS ] (MD) knob to display “<2> FLD”, and press the [ AMS ] (MD).

2. The fluorescent display tube turns ON fully. Each time the [ AMS ] (MD) knob is pressed, the display changes such as

[Full ON] t [Partial ON] t [Selected menu].

3. To exit from the mode, press the x (MD) button and [ AMS ] (MD) knob simultaneously.

Key/Jog Input Test

Procedure:

1. Enter the service mode, then rotate [ AMS ] (MD) knob to display “<3> Key/Jog”, and press the [ AMS ] (MD).

2. KEY=29 is displayed, and each time a key is pressed, the corresponding pictograph goes off and numeric value is counted down. When all keys were pressed, KEY=0 is displayed.

Correspondence between KEY and pictorial display

KEY Pictorial display KEY Pictorial display KEY Pictorial display

l AMS L

(CD) HIGH

x (CD)

X (CD) X (upper) CLEAR (MD)

[DISC] (upper) m (CD) (CD)

[CD]

l AMS L

(MD) NORMAL

[DISC] (under)

[TRACK] (under)

H (CD) H (upper) TIME MD MONO x (MD)

?/1 [OVER]

PLAY MODE

OPT INPUT COAX H (MD) H (under)

PLAY MODE

L.SYNC X (MD) X (under)

CD SYNCHRO

OPNE/CLOSE

X 4

SYNC

[MD]

TIME CD CD DISPLAY ANALOG M (MD) (MD)

CLEAR (CD)

[TRACK]

(upper)

m (MD) (MD) REC z (MD) [REC]

REC-IT (CD) REC IT YES TOC A EJECT

M (CD) (CD) MENU/NO [EDIT]

Software Reset

Procedure:

1. Enter the service mode, then rotate [ AMS ] (MD) knob to display “<6> Initial”, and press the [ AMS ] (MD).

2. The microcomputer resets the software, and the power is turned off.

RETRY CAUSE DISPLAY MODE IN MD

• 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. These are displayed in hexadecimal.

Procedure:

1. Load a recordable disc whose contents can be erased into the unit.

2. Press the [MENU/NO] button. When “Edit Menu” is displayed on the fluorescent indicator tube, turn the [ AMS ] (MD) knob

to display “All Erase?”.

3. Press the [YES] button. (Or press the [ AMS ] (MD) knob)

4. When “All Erase??” is displayed on the fluorescent indicator tube, the music calendar number blinks.

5. Press the [YES] button to display “Complete!!”, and press the x (MD) button immediately . Wait for about 15 seconds while pressing

the button. (The [ AMS ] (MD) knob can be pressed instead of the [YES] button for the same results)

6. When the “TOC” displayed on the fluorescent display tube goes off, release th x (MD) button.

7. Press the [REC ] button to start recording. Then press the X (MD) button and start recording.

8. To check the “track mode”, press the H (MD) button to start play.

9. To release the test mode , press the ?/1 button, and turn OFF the po wer. When “TOC” disappears, disconnect the power plug from the

outlet.

Fig. 1 Reading the Test Mode Display

(During recording and stop)

RTs@@c##e

Fluorescent indicator tube display

@@ : Cause of retry ## : Number of retries

: Number of retry errors

Reading the Retry Cause Display

Higher Bits Lower Bits

Hexadecimal

Bit

Binary

84218421

b7 b6 b5 b4 b3 b2 b1 b0

00000001 00000010

00000100 00001000 00010000 00100000 01000000 10000000

Hexa-

decimal

04 08 10 20 40 80

Cause of Retry

shock

ader5 Discontinuous address

DIN unlock FCS incorrect IVR rec error CLV unlock Access fault

Fig. 2 Reading the Test Mode Display

(During playback)

@@ ###

Fluorescent indicator tube display

@@: Parts No. (name of area named on TOC) ## : Cluster

: Sector

$$ : Track mode (Track information such as copy-

right information of each part)

When track jump (shock) is detected When ADER was counted more than five times

continuously When ADIP address is not continuous When DIN unlock is detected When not in focus When ABCD signal level exceeds the specified range When CLV is unlocked When access operation is not performed normally



Address

 

Occurring conditions

Reading the Display:

Convert the hexadecimal display into binary display. If more than two causes, they will be added.

Example

When 42 is displayed: Higher bit: 4 = 0100 t b6 Lower bit : 2 = 0010 t b1 In this case, the retry cause is combined of “CLV unlock” and “ader5”.

When A2 is displayed: Higher bit: A = 1010 t b7 + b5 Lower bit : 2 = 0010 t b1 The retry cause in this case is combined of “access fault”, “IVR rec error”, and “ader5”.

Reading the Retry Cause Display

Higher Bits

Hexadecimal

Bit

Binary

Reading the Display:

Convert the hexadecimal display into binary display. If more than two causes, they will be added.

Example When 84 is displayed:

Higher bit: 8 = 1000 t b7 Lower bit : 4 = 0100 t b2 In this case, as b2 and b7 are 1 and others are 0, it can be determined that the retry cause is combined of “emphasis OFF”, “monaural”, “original”, “copyright exists”, and “write allowed”.

Example When 07 is displayed:

Higher bit: 0 = 1000 t All 0 Lower bit : 7 = 0111 t b0 + b1 + b2 In this case, as b0, b1, and b2 are 1 and others are 0, it can be determined that the retry cause is combined of “emphasis ON”, “stereo”, “original”, “copyright exists”, and “write prohibited”.

84218421

b7 b6 b5 b4 b3 b2 b1 b0

00000001 00000010 00000100 00001000 00010000 00100000 01000000 10000000

Lower Bits

Hexa-

decimal

01 02 04 08 10 20 40 80

When 0

Emphasis OFF Monaural

This is 2-bit display. Normally 01. 01:Normal audio. Others:Invalid

Audio (Normal) Original Copyright Write prohibited

Details

When 1

Emphasis ON Stereo

Invalid Digital copy No copyright Write allowed

Hexadecimal t Binary Conversion Table

Hexadecimal Binary Hexadecimal Binary

0 0000 8 1000 1 0001 9 1001 2 0010 A 1010 3 0011 B 1011 4 0100 C 1100 5 0101 D 1101 6 0110 E 1110 7 0111 F 1111

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

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

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

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

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

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 MNO (48h to 4Fh) P QR 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 }

(78h to 7Fh)

i¢£¤¥ § (A0h to A7h) 8859-1

C ª

•±23

†

º ¿ (B8h to BFh)

–

µ¶ • (B0h to B7h)

′

14123

(A8h to AFh)

АБВГДЕЖЗ (C0h to C7h)

ИЙКЛМНОП (C8h to CFh) D СТУФХЦ ШЩЪЫЬY

(D0h to D7h)

ß (D8h to DFh) абвгдежз (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) E E E E I I I I (C8h to CFh) DNOOOOO (D0h to D7h) O UUU U Y (D8h to DFh)

a a a a a a c (E0h to E7h) eeeeiiii (E8h to EFh) dnooooo (F0h to F7h) o u u u u y y (F8h to FFh)

T All the same T All the same

T All the same

SECTION 2

GENERAL

Front view Rear view

1 2 3 4 5 678 90 qa qs qd

qfqgqhqj

1 LINE (ANALOG) IN jack 2 LINE (ANALOG) OUT jack 3 DIGITAL OPTICAL IN terminal

4 VOLTAGE SELECTOR switch (singapore model only) 5 AC power cord

qlw;

ed 12 3 4 5

1 ?/1 (power) switch 2 REC-IT button 3 CD disc tray

4 Display window 5 A OPEN/CLOSE button 6 CD SYNC NORMAL button 7 CD SYNC HIGH button 8 MENU/NO button 9 MD insertion slot 0 YES button qa A EJECT button qs PHONE LEVEL control qd PHONES jack qf REC z button qg x button qh X button qj H button qk m/M button ql AMS control w; CLEAR button wa MD TIME button ws MD PLAY MODE button wd INPUT button wf DISPLAY button wg CD PLAY MODE button wh CD TIME button wj CLEAR button wk AMS control wl x button e; X button ea H button es m/M button ed Remote sensor

wkwlea

e;es

wfwh

wdwg

SECTION 3

)

DISASSEMBLY

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

LOADING PANEL

In removing the front panel with the power not supplied, insert a flat-blade screwdriver into a hole at the bottom of loading section and rotate it counterclockwise. Then, draw out the disc table and remove the loading panel.

3

Remove the loading panel to direction of the arrow.

COVER, FRONT PANEL SECTION

2

cover

7

two claws

5

three screws (BVTT3

6

lug

1

two screws (case3 TP2)

CD MECHANISM DECK SECTION (Page 19) MD MECHANISM DECK SECTION (Page 21) MAIN BOARD (Page 23)

1

two screws (case3 TP2)

1

two screws (case3 TP2)

3

wire (flat type) (19 core (CN604)

8

front panel section

5

six screws (BVTT3

4

connector (CN451)

7

two claws

CD MECHANISM DECK SECTION (CDM14H-5TBD26B)

3

lead (with connector)

5

Push the disc table.

4

three screws (BVTT3

4

three screws (BVTT3

6

Pulling the front panel in the direction of the arrow A a little, remove the mechanism deck (CDM14H-5TBD26B) in the direction of the arrow Note: Don’t pull the front panel in the direction of

the arrow

by force.

wire (flat type) (29 core)

1

(CN501)

2

connector (CN502)

CHASSIS (MD)

1

Rotate the cam counterclockwise with a flat-blade screwdriver.

cam

4

Remove the chassis (MD) to direction of the arrow

3

yoke bracket

2

Pull out the disc table.

CD BASE UNIT (BU-5TBD26B)

)

1

two screws (PTPWHM2.6)

3

two compression springs (932)

1

two screws (PTPWHM2.6)

2

CD base unit (BU-5TBD26B)

3

two compression springs (932)

4

chassis (MD)

BD (CD) BOARD

Note: When routing the lead wires of spindle motor,

pass them through a slot in the BD (CD) board, then solder to the motor. Then, secure the lead wires to the IC191 with an adhesive sheet so as not to be loose, as shown in the figure.

adhesive sheet

motor leads

IC191

spindle motor

2

Remove two solders of spindle motor leads.

4

screw (BVTP2.6

3

two screws (P2

5

1

wire (flat type) (16 core (CN102)

BD (CD) board

MD MECHANISM DECK SECTION (MDM-5X2B)

6

Remove the MD mechanism deck (MDM-5X2B) to direction of the arrow.

3

screw (BVTT3

4

lug

5

four step screws (BVTTWH M3)

1

wire (flat type) (27 core) (CN602)

1

wire (flat type) (23 core) (CN601)

2

connector (CN603)

SLIDER (CAM)

bracket (Guide L)

two screws (P2.6 × 6)

leaf spring

lug

slider (Cam)

• Note for Installation of Slider A (Cam)

Set the shaft of Cam gear to be at the position in the figure.

Set the shaft of Lever (O/C) to be at the position in the figure.

two screws (P2.6 × 6)

bracket (Guide R)

MD BASE UNIT (MBU-5X2B), BD (MD) BOARD

)

flexible board (CN104)

flexible board (CN101)

three screws (P2.6

base unit (MBU-5X2B)

BD (MD) board

SW BOARD, LOADING MOTOR (M203)

two screws (PWH1.7

SW board

gear B

screw (M1.7 × 4)

Remove the solder (Seven portion).

screw (PTPWH M2.6 × 6

loading motor (M203)

three screws (BTP2.6 × 6)

MAIN BOARD

)

wire (flat type) (29 core) (CN501)

wire (flat type) (27 core) (CN602)

connector (CN502)

screw (BVTT3

three connectors (CN603, 901, 902)

wire (flat type) (19 core) (CN604)

connector (CN451)

screw (BVTT3

MAIN board

two screws (BVTP3

wire (flat type) (23 core) (CN601)

two PC board holders

MEASURE AGAINST HEAT FROM HEAT SINK

When connecting the cable from TRANS board (CN101) to MAIN board (CN902), cross it with the cable between SW board (CN601) and MAIN board (CN603), as shown in the figure.

TRANS board

CN101

CN601

SW board

heat sink

CN902

CN603

MAIN board

SECTION 4

TEST MODE

MD SECITON

Note: MD always plays double speed.

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 MODE)

• Laser power check mode (LDPWR CHECK)

• Laser power adjustment mode (LDPWR ADJUS)

• Traverse (MO) check (EF MO CHECK)

• Traverse (MO) adjustment (EF MO ADJUS)

• When pressing the [REC ] button.

2. SETTING THE TEST MODE

The following are two methods of entering the test mode.

Procedure 1: Press the x (CD), [CLEAR] (CD), x (MD) and [CLEAR] (MD) buttons at the same time.

Procedure 2: While pressing the [ AMS ] (MD) knob, connect the power plug to the outlet and release the [ AMS ]

Press the [ AMS ] (MD) knob and x (MD) button to display “ < 0 > To Normal”. Turn the [ AMS ] (MD) knob and when “ < 5 > 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 four groups; ···Tt [Check] Tt [Adjust] Tt [Service] Tt [Develop] Tt ···.

(MD) knob. When the test mode is set, “TEMP CHECK” will be displayed. By setting the test mode using this method, only the “Check” group of method 1 can be executed.

3. RELEASING THE TEST MODE

Press the ?/1 button to turn the power OFF. (with initialize)

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

l AMS L knob (MD) Changes parameters and modes

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

5. SELECTING THE TEST MODE

There are 31 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 betw een these

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

Display

TEMP CHECK LDPWR CHECK EF MO CHECK EF CD CHECK FBIAS CHECK Scurve CHECK VERIFYMODE DETRK CHECK TEMP ADJUS LDPWR ADJUS EF MO ADJUS EF CD ADJUS FBIAS ADJUS EEP MODE MANUAL CMD SVDATA READ ERR DP MODE SLED MOVE ACCESS MODE 0920 CHECK HEAD ADJUST CPLAY 1MODE CREC 1MODE ADJ CLEAR AG Set (MO) AG Set (CD) Iop Read Iop Write INFORMATION CPLAY MODE CREC MODE

No.

C01 C02 C03 C04 C05 C06 C07 C08 C09 C10 C11 C12 C13 C14 C15 C16 C17 C18 C19 C20 C21 C22 C23 C24 C25 C26 C27 C28 C29 C30 C31

Contents

Temperature compensation offset check Laser power check Traverse (MO) check Traverse (CD) check Focus bias check S letter check Non-volatile memory check Detrack check Temperature compensation offset adjustment Laser power adjustment Traverse (MO) adjustment Traverse (CD) adjustment Focus bias adjustment Non-volatile memory control Command transmission Status display Error history display, clear Sled check Access check Outermost circumference check Head position check Same functions as CPLAY MODE (Not used in servicing) Same functions as CREC MODE (Not used in servicing) Initialization of non-volatile memory of adjustment value Auto gain output level adjustment (MO) Auto gain output level adjustment (CD) IOP data display IOP data write Microprocessing version display Continuous playback mode Continuous recording mode

Mark

(X) (X) (X)

(X) (!)

(X) (X)

(X) (X) (X) (X) (X) (X)

Group (*)

C: Check S: Service

Group (*)

CS CS CS CS CS C C C

AS AS AS AS AS

D D D

D D D D D

D AS AS AS

CS CASD CASD

A: Adjust D: Develop

• For details of each adjustment mode, refer to “5. Electrical Adjustments”. For details of “ERR DP MODE”, 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 (X) in the Mark column are not used for servicing and therefore are not described in detail. If these modes are set accidentally, press the [MENU/NO] button to release the mode immediately. Be especially careful not to set the modes with (!) as they will overwrite the non-volatile memory and reset it, and as a result, the unit will not operate normally.

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 MODE” (C30).

(3) Press the [YES] button to change the display to “CPLAY MID”. (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.

“CPLAY MID” t “CPLAY OUT” t “CPLAY IN”

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

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

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 MODE”.

(3) Press the [YES] button to change the display to “CREC MID” (C31). (4) When access completes, the display changes to “CREC ( ” 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 MID” t “CREC OUT” t “CREC IN”

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

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

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

” and “ REC ” lights up.

3. Ending the continuous recording mode (1) Press the (2) Press the [ EJECT] button and take out the disc.

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

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

” goes off.

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.

5-3. Non-Volatile Memory Mode (EEP MODE)

This mode reads and writes the contents of the non-volatile memory. It is not used in servicing. If the unit entered this mode accidentally, press the [MENU/NO] button immediately to release it.

6. FUNCTIONS OF OTHER BUTTONS

Function

H (MD)

x (MD) M (MD) m (MD)

CLEAR (MD) PLAY MODE (MD) DISPLAY

A EJECT ?/1

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. The sled moves to the outer circumference only when this is pressed. The sled moves to the inner circumference only when this is pressed. 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 Releases the test mode

Contents

7. TEST MODE DISPLAYS

Each time the [DISPLAY] button is pressed, the display changes in the following order.

1. Mode display

Displays “TEMP ADJUS”, “CPLAYMODE”, etc.

2. Error rate display

Displays the error rate in the following way.

C = ssss AD = ss C = Indicates the C1 error. AD = Indicates ADER.

3. Address display

The address is displayed as follows. (MO: recordable disc, CD: playback only disc) Press the [CLEAR] (MD) button to switches between the groove display and pit display. h = ssss s = ssss (MO pit and CD) h = ssss a = ssss (MO groove) h = Indicates the header address. s = Indicates the SUBQ address. a = Indicates the ADIP address.

Mode display

Error rate display

Address display

Auto gain display

(Not used in servicing)

Detrack check display

(Not used in servicing)

IVR display

(Not used in servicing)

Note: “–” is displayed when servo is not imposed.

4. Auto gain display (Not used in servicing)

The auto gain is displayed as follows. AG = ss/ss[ ss

5. Detrack check display (Not used in servicing)

The detrack is displayed as follows. ADR = sssssss

6. IVR display (Not used in servicing)

The IVR is displayed as follows. [ss][ss][ss

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