U.S. and foreign patents licensed form Dolby Laboratories
Licensing Corporation.
SPECIFICATIONS
US Model
Canadian Model
AEP Model
UK Model
E Model
Model Name Using Similar MechanismMDS-JE520
MD Mechanism TypeMDM-5A
Optical Pick-up TypeKMS-260A/J1N
MICROFILM
– Continued on next page –
MINIDISC DECK
Page 2
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. While pressing the = AMS + knob and p button, connect the power plug to the outlet, and release the = AMS + knob
and p button.
2. Turn the = AMS + knob and when “[Service]” is displayed, press the [YES] button.
3. Turn the = AMS + knob to display “ERR DP MODE”.
4. Press the [YES] button to sets the error history mode and displays “total rec”.
5. Select the contents to be displayed or executed using the = AMS + knob.
6. Press the = AMS + knob to display or execute the contents selected.
7. Press the = AMS + knob another time returns to step 4.
8. Press the [MENU/NO] button to display “ERROR DP MODE” and exits the error history mode.
9. To exit the test mode, press the [REPEAT] button. The unit sets into the STANDBY state, the disc is ejected, and the test mode ends.
– 2 –
Page 3
Items of Error History Mode Items and Contents
Selecting the Test Mode
Display
total recDisplays 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 playDisplays the play time.
Displayed as “pππππππh”. 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 errDisplays the total number of retries during recording and number of retry errors during play.
Displayed as “rππ pππ”.
“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 errDisplays the total number of errors.
Displayed as “total ππ”.
The number of errors is displayed in hexadecimal digits from 00 to FF.
err historyDisplays the 10 latest errors.
Displayed as “0π E@@”.
π 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 =
knob.
er refreshMode 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 =
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 refreshMode which erases the “total rec” and “total play” histories.
These histories serve as approximate indications of when to replace the optical pickup.
If the optical pickup has been replaced, perform this operation and erase the history.
After pressing 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 + button and “er refresh?” is displayed, press the [YES] button to erase the
AMS + button and “tm refresh?” is displayed, press the [YES] button to erase the
Details of History
AMS +
Table of Error Codes
Error CodeError CodeDetails of Error
E00No error
E01Disc error. PTOC cannot be read
(DISC ejected)
E02Disc error. UTOC error
(DISC not ejected)
E03Loading error
E04Address cannot be read (Servo has deviated)
Details of Error
E05FOK has deviated
E06Cannot focus (Servo has deviated)
E07Recording retry
E08Recording retry error
E09Playback retry error
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 microampers).
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 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-63Trd are examples of a passive VOM that is suitable. Nearly all battery
operated digital multimeters that have a 2 V A C range are suitable. (See Fig. A)
To Exposed Metal
Parts on Set
0.15 µF
1.5 k
Ω
AC
voltmeter
(0.75 V)
8.ELECTRICAL PARTS LIST ............................... 70
Earth Ground
Fig. A. Using an AC voltmeter to check AC leakage.
MODEL IDENTIFICATION
— BACK PANEL —
Part No.
MODELPart No.
US model4-216-840-0π
Canadian model4-216-840-1π
Singapore model4-216-840-2π
AEP model4-216-840-3π
UK model4-216-840-4π
– 4 –
Page 5
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.
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.
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.
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.
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.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK ! OR DOTTED
LINE WITH MARK ! ON THE SCHEMATIC DIA GRAMS
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 !
SUR LES DIAGRAMMES SCHÉMATIQUES 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.
– 5 –
Page 6
JIG FOR CHECKING BD BOARD WAVEFORM
r
The special jig (J-2501-149-A) is useful for checking the waveform of the BD board. The names of terminals and the checking items to 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
RF
VC
TEO
IOP
I+3V
GND
5P Connector
RF
VC
TEO
IOP
I+3V
GND
CN110
6P connecto
for MDM-3
1
RF
VC
TEO
IOP
I+3V
5
for MDM-5
1
VC
RF
TEO
IOP
I+3V
6
GND
– 6 –
Page 7
IOP DA T A RECORDING AND DISPLAY WHEN OPTICAL PICK-UP AND NON-V OLA TILE MEMOR Y (IC171
OF BD 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 label of the optical pick-up. When replacing the optical pick-up or non-v olatile memory (IC171 of BD board),
record the IOP value on the optical pick-up according to the following procedure.
Record Precedure:
1. While pressing the = AMS + knob and p button, connect the power plug to the outlet, and release the = AMS + knob
and p button.
2. Turn the = AMS + knob to display “[Service]”, and press the [YES] button.
3. Turn the = AMS + knob to display “lop Write” (C28), and press the [YES] button.
4. The display becomes “Ref=@@@.@” (@ is an arbitrary number) and the numbers which can be changed will blink.
5. Input the IOP value written on the optical pick-up.
To select the number : Turn the = AMS + knob.
To select the digit: Press the = AMS + knob.
6. When the [YES] button is pressed, the display becomes “Measu=@@@.@” (@ is an arbitrary number).
7. As the adjustment results are recorded for the 6 value. Leave it as it is and press the [YES] button.
8. “Complete!” will be displayed momentarily. The value will be recorded in the non-volatile memory and the display will become “Iop
Write”.
9. Press the [REPEAT] button to complete.
Display Precedure:
1. While pressing the = AMS + knob and p button, connect the power plug to the outlet, and release the = AMS + knob
and p button.
2. Turn th = AMS + knob to display “[Service]”, and press the [YES] button.
3. Turn the = AMS + knob to display “lop Read” (C27).
4. “@@.@/##.#” is displayed and the recorded contents are displayed.
@@.@: indicates the IOP value labeled on the optical pick-up.
##.#: indicates the IOP value after adjustment
5. To end, press the = AMS + knod or [MENU/NO] button to display “Iop Read”. Then press the [REPEAT] button.
– 7 –
Page 8
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”.
Laser power check
(6-2 : See page 23)
Traverse check
(6-3 : See page 23)
Focus bias check
(6-4 : See page 24)
C PLAY check
(6-5 : See page 24)
Self-recording/playback
check
(6-6 : See page 24)
Temperature
compensation
offset check
(6-1 : See page 23)
Criteria for Determination
(Unsatisfactory if specified value is not satisfied)
• 0.9 mW power
Specified value : 0.84 to 0.92 mW
• 7.0 mW power
Specified value : 6.8 to 7.2 mW
lop (at 7mW)
• Labeled on the optical pickup
Iop value ± 10mA
• Traverse waveform
Specified value : Below 10% offset
• Error rate check
Specified value : For points a, b, and c
C1 error : About 200
AD error : Above 00
• Error rate check
Specified value:
a.When using test disc (MDW-74/AU-1)
• Unsatisfactory if displayed as T=@@ (##) [NG”
NG
(@@, ## are both arbitrary numbers)
• Clean the optical pick-up
• Adjust again
• Replace the optical pick-up
• Replace the optical pick-up
• Replace the optical pick-up
• Replace the optical pick-up
• 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 board)
• Check the signals around IC101, IC121, CN102,
CN103 (BD 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.
– 8 –
Page 9
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.
These are displayed in hexadecimal.
Precedure:
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 + knob to
display “All Erase?”.
3. Press the [YES] button. (Or press the = AMS + 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 p button immediately. Wait for about 15 seconds while pressing the
button. (The = AMS + 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 the p button.
7. Press the [REC] button to start recording. Then press the P button and start recording.
8. To check the “track mode”, press the · button to start play.
9. To exit the test mode, press the 1/u button, and turn OFF the power. When “TOC” disappears, disconnect the power plug from the
@@ : 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 unloc ked
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 n b6
Lower bit : 2 = 0010 n b1
In this case, the retry cause is combined of “CLV unlock” and “ader5”.
When A2 is displayed:
Higher bit: A = 1010 n b7+b5
Lower bit : 2 = 0010 n b1
The retry cause in this case is combined of “access fault”, “IVR rec error”, and “ader5”.
– 9 –
Page 10
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 n b7
Lower bit : 4 = 0100 n 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 n All 0
Lower bit : 7 = 0111 n 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”.
This section is extracted from
instruction manual.
– 11 –
Page 12
SECTION 3
)
DISASSEMBLY
Note: Follow the disassembly procedure in the numerical order given.
COVER
1
two screws
(CASE 3 TP2)
2
3
cover
2
1
two screws
(CASE 3 TP2)
FRONT PANEL SECTION
3
claw
4
front panel section
2
three screws
(BVTP3
×
8)
3
claw
3
claw
1
wire (flat type) (19 core
(CN421)
– 12 –
Page 13
MAIN BOARD
)
2
connector
(CNP911)
5
MAIN board
2
3
two screws
(BVTP3
connector
(CNP920)
×
8)
1
wire (flat type) (21 core)
(CN411)
1
wire (flat type) (19 core)
(CN421)
1
wire (flat type) (23 core)
(CN501)
2
connector
(CN502)
3
two screws
(BVTP3
×
8)
3
two screws
(BVTP3
×
8
MECHANISM DECK SECTION (MDM-5A)
4
four step screws
(BVTTWH M3)
5
Remove the mechanism deck
(MDM-5A) to direction of
the arrow.
4
two PC board holders
1
wire (flat type) (21 core)
(CN411)
1
wire (flat type) (23 core)
(CN501)
2
connector
(CN502)
3
harnes
– 13 –
Page 14
SLIDER (CAM)
7
slider (Cam)
• Note for Installation of Slider A (Cam)
4
bracket (Guide L)
1
two screws (P2.6 × 6)
2
harnes
3
leaf spring
BASE UNIT (MBU-5A), BD BOARD
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.
5
two screws (P2.6 × 6)
6
bracket (Guide R)
5
flexible board
(CN104)
6
flexible board
(CN101)
7
BD board
2
1
three screws
×
(P2.6
4
screw (M1.7 × 4)
– 14 –
base unit (MBU-5A)
6)
3
Remove the solder (Seven portion).
Page 15
SW BOARD, LOADING MOTOR (M103)
)
3
6
SW board
2
two screws
(PWH1.7
gear (B)
×
4)
1
screw (PTPWH M2.6 × 6
4
loading motor (M103)
5
three screws (BTP2.6 × 6)
– 15 –
Page 16
SECTION 4
TEST MODE
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 ADJUST)
• Traverse (MO) check (EF MO CHECK)
• Traverse (MO) adjustment (EF MO ADJUST)
• When pressing the [REC] button.
2. SETTING THE TEST MODE
The following are two methods of entering the test mode.
Procedure 1: While pressing the = AMS + knob and p button, connect the power plug to an outlet, and release the
Procedure 2: While pressing the = AMS + knob, connect the power plug to the outlet and release the = AMS + knob.
§
§
r
= AMS + knob and p button.
When the test mode is set, “[Check]” will be displayed. T urn the = AMS + knob switches between the following four
groups; ···Nn [Check] Nn [Adjust] Nn [Service] Nn [Develop] Nn ···.
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. EXITING THE TEST MODE
Press the [REPEAT] button. The disc is ejected when loaded, and “Standby” display blinks, and the STANDBY state is set.
4. BASIC OPERATIONS OF THE TEST MODE
All operations are performed using the = AMS + knob, [YES] button, and [MENU/NO] button.
The functions of these buttons are as follows.
Function nameFunction
= AMS + knobChanges parameters and modes
YES buttonProceeds onto the next step. Finalizes input.
MENU/NO buttonReturns to previous step. Stops operations.
– 16 –
Page 17
5. SELECTING THE TEST MODE
There are 31 types of test modes as shown below. The groups can be switched by turn the = AMS + knob. After selecting the g roup
to be used, press the [YES] button. After setting a certain group, turn the = AMS + knob switches between these modes.
Refer to “Group” in the table for details 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
ScurveCHECK
VERIFYMODE
DETRK CHECK
TEMP ADJUST
LDPWR ADJUST
EF MO ADJUST
EF CD ADJUST
FBIAS ADJUST
EEP MODE
Impossible
Impossible
ERR DP MODE
Impossible
Impossible
Impossible
Impossible
Impossible
Impossible
ADJ CLEAR
AG Set (MO)
AG Set (CD)
Iop Read
Iop Write
S40 ******
CPLAY MODE
CREC MODE
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
Same functions as CREC MODE
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 play 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
S
D
D
D
D
D
D
AS
AS
AS
CS
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 exit 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 exit 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.
– 17 –
Page 18
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 + 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 “C1 = 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” n “CPLAY OUT” n “CPLAY IN”
When pressed another time, the parts to be played back can be moved.
(2) When access completes, the display changes to “C1 = 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 to remove the disc.
Note: The playback start addresses for IN, MID, and OUT are as follows.
§
IN40h cluster
MID300h cluster
OUT700h 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 + 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” n “CREC OUT” n “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 [MENU/NO] button. The display changes to “CREC MODE” and REC goes off.
(2) Press the [EJECT] button to remove the disc.
Note 1: The recording start addresses for IN, MID, and OUT are as follows.
§
IN40h cluster
MID300h cluster
OUT700h 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 set accidentally, press the [MENU/NO] button immediately to exit it.
– 18 –
Page 19
6. FUNCTIONS OF OTHER BUTTONS
Function
·
p
)
0
SCROLL
PLAY MODE
LEVEL/DISPLAY/CHAR
EJECT §
REPEAT
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 (CLVS ˜ CLV A).
Switches the displayed contents each time the button is pressed
Ejects the disc
Exits the test mode
Contents
7. TEST MODE DISPLAYS
Each time the [DISPLAY/CHAR] button is pressed, the display changes in the following order.
1. Mode display
Displays “TEMP ADJUST”, “CPLAYMODE”, etc.
2. Error rate display
Displays the error rate in the following way.
C1 = ππππ AD = ππ
C1 = Indicates the C1 error.
AD = Indicates ADER.
3. Address display
The address is displayed as follows. (MO: recordable disc, CD: playback only disc)
Pressing the [SCROLL/CLOCKSET] button switches between the group display and bit display.
h = ππππ s = ππππ (MO pit and CD)
h = ππππ a = ππππ (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 = ππ/ππ[ππ]
5. Detrack check display (Not used in servicing)
The detrack is displayed as follows.
ADR = πππππππ
6. IVR display (Not used in servicing)
The IVR is displayed as follows.
[ππ][ππ][ππ
– 19 –
Page 20
MEANINGS OF OTHER DISPLAYS
Display
(
P
REC
SYNC
L.SYNC
OVER
B
ATRACK
DISC
SLEEP
MONO
When Lit
During continuous playback (CLV: ON)
Tracking servo OFF
Recording mode ON
CLV low speed mode
ABCD adjustment completed
Tracking offset cancel ON
Tracking auto gain OK
Focus auto gain OK
Pit
High reflection
CLV-S
CLV LOCK
Contents
When Off
STOP (CLV: OFF)
Tracking servo ON
Recording mode OFF
CLV normal mode
Tracking offset cancel OFF
Groove
Low reflection
CLV-A
CLV UNLOCK
– 20 –
Page 21
SECTION 5
ELECTRICAL ADJUSTMENTS
1. PARTS REPLACEMENT AND ADJUSTMENT
• Check and adjust the MDM and MBU as follows.
The procedure changes according to the part replaced
• Temperature compensation offset check
• Laser power check
• Traverse check
• Focus bias check
• C PLAY check
• Self-recording/playback check
• Abbreviation
OP:Optical pick-up
OWH : Overwrite head
OK
NG
Parts Replacement and Repair
Has the OWH been replaced?
NO
Has OP, IC171, IC101, or
IC121 been replaced?
YES
Initial setting of the adjustment value
Has OP or IC171 been replaced?
Check the sled and spindle
mechanisms.
Other causes can be suspected.
YES
NO
NO
YES
IOP information recording
(IOP value labeled on OP)
Has IC171 or D101
been replaced?
YES
Temperature compensation offset adjustment
• Laser power adjustment
• Traverse adjustment
• Focus bias adjustment
• Error rate adjustment
• Focus bias check
• Auto gain adjustment
– 21 –
NO
Page 22
2. PRECAUTIONS FOR CHECKING LASER DIODE
EMISSION
T o check the emission of the laser diode during adjustments, nev er
view directly from the top as this may lose your eye-sight.
3. PRECAUTIONS FOR USE OF OPTICAL
PICK-UP (KMS-260A)
As the laser diode in the optical pick-up is easily damaged by static
electricity, solder the laser tap of the fle xible board when using it.
Before disconnecting the connector, desolder first. Before connecting the connector, be careful not to remove the solder. Also
take adequate measures to prevent damage by static electricity.
Handle the flexible board with care as it breaks easily.
pick-up
laser tap
flexible board
Optical pick-up flexible board
4. PRECAUTIONS FOR ADJUSTMENTS
1. When replacing the following parts, perform the adjustments
and checks with ¬ in the order shown in the following table.
D101
BD Board
IC101, IC121
IC192
G
1. Initial setting of
adjustment value
2.Recording of IOP
information
(Value written in
the pick-up)
3.Temperature
compensation
offset adjustment
4.Laser power
adjustment
Optical
Pick-up
IC171
¬G¬¬
¬G¬GG
¬¬GGG
¬G¬¬¬
4. Use the following tools and measuring devices.
• Check Disc (MD) TDYS-1
(Parts No. 4-963-646-01)
• TEST DISK (MDW-74/AU-1) (Parts No. 8-892-341-41)
• Laser power meter LPM-8001 (Parts No. J-2501-046-A)
or MD Laser power meter 8010S (Parts No. J-2501-145-A)
• Oscilloscope (Measure after performing CAL of prove)
5. When observing several signals on the oscilloscope, etc.,
make sure that VC and ground do not connect inside the oscilloscope.
(VC and ground will become short-circuited)
6. Using the above jig enables the waveform to be check ed without the need to solder.
(Refer to Servicing Notes on page 6)
7. As the disc used will affect the adjustment results, make sure
that no dusts nor fingerprints are attached to it.
Laser power meter
When performing laser power checks and adjustment (electrical
adjustment), use of the new MD laser power meter 8010S (J-2501145-A) instead of the conventional laser power meter is convenient.
It sharply reduces the time and trouble to set the laser power meter
sensor onto the objective lens of the pick-up.
5. CREATING CONTINUOUSLY-RECORDED DISC
* This disc is used in focus bias adjustment and error rate check.
The following describes how to create a continuous recording
disc.
1. Insert a disc (blank disc) commercially available.
2. Turn the =
(C31)
3. Press the [YES] button again to display “CREC MID”.
Display “CREC (0300)” and start to recording.
4. Complete recording within 5 minutes.
5. Press the [MENU/NO] button and stop recording .
6. Press the [EJECT] button and remove the disc.
The above has been how to create a continuous recorded data for
the focus bias adjustment and error rate check.
Note :
• Be careful not to apply vibration during continuous-recording.
AMS + knob and display “CREC MODE”.
§
5.Traverse
adjustment
6.Focus bias
adjustment
7.Error rate check
8. Auto gain output
level adjustment
¬G¬¬G
¬G¬¬G
¬G¬¬G
¬G¬¬G
2. Set the test mode when performing adjustments.
After completing the adjustments, exit the test mode.
Perform the adjustments and checks in “group S” of the test
mode.
3. Perform the adjustments to be needed in the order shown.
– 22 –
Page 23
6. CHECK PRIOR TO REPAIRS
r
r
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 8).
6-1. Temperature Compensation Offset Check
When performing adjustments, set the internal temperature and
room temperature of 22 °C to 28 °C.
Checking Procedure:
1. Turn the = AMS + knob to display “TEMP CHECK”
(C01).
2. Press the [YES] button.
3. “T=@@(##) [OK” should be displayed. If “T=@@ (##) [NG”
is displayed, it means that the results are bad.
(@@ indicates the current value set, and ## indicates the value
written in the non-volatile memory)
6-2. Laser Power Check
Before checking, check the IOP value of the optical pick-up.
(Refer to 5-8. Recording and Displaying IOP Information)
Connection :
Optical pick-up
objective lens
BD board
CN110 pin 5 (I +3V)
CN110 pin
4
(IOP)
Checking Procedure:
1. Set the laser power meter on the objective lens of the optical
pick-up. (When it cannot be set properly, press the 0 but-
[]
ton or ) button to move the optical pick-up)
Connect the digital volt meter to CN110 pin 5 (I+3V) and
CN110 pin 4 (IOP).
2. Then, turn the =
AMS + knob and display “LDPWR
CHECK” (C02).
3. Press the [YES] button once and display “LD 0.9 mW $ ”.
Check that the reading of the laser power meter become 0.84
to 0.92 mW.
4. Press the [YES] button once more and display “LD 7.0 mW $
”. Check that the reading the laser power meter and digital
volt meter satisfy the specified value.
Specification:
Laser power meter reading : 7.0 ± 0.2 mW
Digital voltmeter reading : Optical pick-up displayed value
(Optical pick-up label)
±10%
laser
power mete
digital voltmete
+
–
[]
Note 1: After step 4, each time the [YES] button is pressed, the display
will be switched between “LD 0.7 mW $ ”, “LD 6.2 mW $
”, and “LD Wp $ ”. Nothing needs to be performed
here.
6-3. Traverse Check
Note 1: Data will be erased during MO reading if a recorded disc is
used in this adjustment.
Note 2: If the traverse waveform is not clear, connect the oscilloscope
as shown in the following figure so that it can be seen more
clearly.
BD board
CN110 pin 3 (TEO)
1
CN110 pin
(VC)
330 k
Ω
10 pF
oscilloscope
(DC range)
+
–
Connection :
oscilloscope
(DC range)
BD board
CN110 pin 3 (TEO)
CN110 pin
1
(VC)
+
–
V: 0.1 V/div
H: 10 ms/div
Checking Procedure:
1. Connect an oscilloscope to CN110 pin 3 (TEO) and CN110
pin 1 (VC) of the BD board.
2. Load a disc (any available on the market). (Refer to Note 1)
3. Press the ) button and move the optical pick-up outside
[]
the pit.
4. Turn the = AMS + knob and display “EF MO
CHECK”(C03).
5. Press the [YES] button and display “EFB = MO-R”.
(Laser power READ power/Focus servo ON/tracking servo
OFF/spindle (S) servo ON)
6. Observe the waveform of the oscilloscope, and check that the
specified value is satisfied. Do not turn the = AMS +
knob.
(Read power traverse checking)
(Traverse Wavef orm)
A
VC
B
Specified value : Below 10% offset value
I
A – B
Offset value (%) = X 100
I
2 (A + B)
7. Press the [YES] button and display “EFB = MO-W”.
8. Observe the waveform of the oscilloscope, and check that the
specified value is satisfied. Do not turn the = AMS +
knob.
(Write power traverse checking)
KMS260A
27X40
B0825
lOP=82.5 mA in this case
lOP (mA) = Digital voltmeter reading (mV)/1 (Ω)
5. Press the [MENU/NO] button and display “LDPWR CHECK”
and stop the laser emission.
(The [MENU/NO] button is effective at all times to stop the
laser emission)
– 23 –
(Traverse Wavef orm)
VC
Specified value : Below 10% offset value
I
Offset value (%) = X 100
A – B
2 (A + B)
A
B
I
Page 24
9. Press the [YES] 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 c heck that the
specified value is satisfied. Do not turn the = AMS +
knob.
(Traverse Wavef orm)
A
VC
B
Specified value : Below 10% offset value
I
A – B
Offset value (%) = X 100
I
2 (A + B)
11. Press the [YES] button display “EF MO CHECK”
The disc stops rotating automatically.
12. Press the [EJECT] button and remove the disc.
§
13. Load the c heck disc (MD) TDYS-1.
14. Turn the = AMS + knob and display “EF CD CHECK”
(C04).
15. Press the [YES] button and display “EFB = CD”. Servo is
imposed automatically.
16. Observe the waveform of the oscilloscope, and c heck that the
specified value is satisfied. Do not turn the = AMS +
knob.
(Traverse Wavef orm)
A
VC
B
Specified value : Below 10% offset value
I
A – B
Offset value (%) = X 100
I
2 (A + B)
17. Press the [YES] button and display “EF CD CHECK”.
18. Press the [EJECT] button and take out the check disc.
§
6-4. Focus Bias Check
Change the focus bias and check the focus tolerance amount.
Checking Procedure :
1. Load the test disk (MDW-74/AU-1).
2. Turn the = AMS+ knob and display “CPLAY MODE”
(C30).
3. Press the [YES] button twice and display “CPLAY MID”.
4. Press the [MENU/NO] button when “C = AD = ” is
displayed.
5. Turn the = AMS+ knob and display “FBIAS CHECK”
(C05).
6. Press the [YES] button and display “/ c = ”.
The first four digits indicate the C1 error rate, the two digits
after [/] indicate ADER, and the 2 digits after [c =] indicate
the focus bias value.
Check that the C1 error is below 50 and ADER is below 2.
7. Press the [YES] button and display “/ b = ”.
Check that the C1 error is about 200 and ADER is below 2.
8. Press the [YES] button and display “/ a = ”.
Check that the C1 error is about 200 and ADER is below 2.
9. Press the [MENU/NO] button, next press the [EJECT] but-
§
ton and take out the test disc.
6-5. C PLAY Checking
MO Error Rate Check
Checking Procedure :
1. Load the test disk (MDW-74/AU-1).
2. Turn the = AMS+ knob and display “CPLAY MODE”
(C30).
3. Press the [YES] button and display “CPLAY MID”.
4. The display changes to “C = AD = ”.
5. If the C1 error rate is below 80, check that ADER is below 2.
6. Press the
[EJECT] button and take out the test disc.
§
[MENU/NO] button, stop playback, press the
CD Error Rate Check
Checking Procedure :
1. Load the check disc (MD) TDYS-1.
2. Turn the = AMS+ knob and display “CPLAY MODE”
(C30).
3. Press the [YES] button twice and display “CPLAY MID”.
4. The display changes to “C = AD = ”.
5. Check that the C1 error rate is below 50.
6. Press the [MENU/NO] button, stop playback, press the
[EJECT] button and take out the check disc.
§
6-6. Self-Recording/playback Check
Prepare a continuous recording disc using the unit to be repaired
and check the error rate.
Checking Procedure :
1. Insert a recordable disc (blank disc) into the unit.
2. Turn the = AMS + knob to display “CREC MODE”
(C31).
3. Press the [YES] button to display the “CREC MID”.
4. When recording starts, “ REC ” is displayed, this becomes
“CREC @@@@” (@@@@ is the address), and recording starts.
5. About 1 minute later, press the [MENU/NO] button to stop
continuous recording.
6. Turn the = AMS+ knob to display “CPLAY MODE”
(C30).
7. Press the [YES] button to display “CPLAY MID”.
8. “C = AD = ” will be displayed.
9. Check that the C1 error becomes below 80 and the AD error
below 2.
10. Press the [MENU/NO] button to stop playback, and press the
[EJECT] button and take out the disc.
§
– 24 –
Page 25
7. INITIAL SETTING OF ADJUSTMENT VALUE
Optical pick-up
objective lens
laser
power meter
+
–
BD board
digital voltmeter
CN110 pin 5 (I +3V)
CN110 pin
4
(IOP)
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.
If initial setting is performed, perform all adjustments again excluding the
temperature compensation offset adjustment.
For details of the initial setting, refer to “4. Precautions on Adjustments”
and execute the initial setting before the adjustment as required.
Setting Procedure :
1. Turn the = AMS+ knob to display “ADJ CLEAR (C24)”.
2. Press the [YES] button. “Complete!” will be displayed momentarily and initial setting will be executed, after which “ ADJ
CLEAR” will be displayed.
8. RECORDING AND DISPLAYING THE IOP
INFORMATION
The IOP data can be recorded in the non-volatile memory. The
IOP value on the label of the optical pickup and the IOP value
after the adjustment will be recorded. Recording these data eliminates the need to read the label on the optical pick-up.
Recording Procedure :
1. Turn the = AMS + knob to display “Iop Write” (C28),
and press the [YES] button.
2. The display becomes Ref=@@@.@ (@ is an arbitrary number) and the numbers which can be changed will blink.
3. Input the IOP value written on the optical pick-up.
To select the number : Turn the = AMS + knob.
To select the digit : Press the = AMS + knob
4. When the
“Measu=@@@.@” (@ is an arbitrary number).
5. As the adjustment results are recorded for the 6 value. Leave it
as it is and press the [YES] button.
6. “Complete!” will be displayed momentarily. The value will be
recorded in the non-volatile memory and the display will become “Iop Write”.
[YES] button is pressed, the display becomes
9. TEMPERATURE COMPENSATION OFFSET
ADJUSTMENT
Save the temperature data at that time in the non-volatile memory
as 25 ˚C reference data.
Note :
1. Usually, do not perform this adjustment.
2. Perform this adjustment in an ambient temperature of 22 ˚C to 28 ˚C.
Perform it immediately after the power is turned on when the internal
temperature of the unit is the same as the ambient temperature of 22 ˚C
to 28 ˚C.
3. When D101 has been replaced, perform this adjustment after the tem-
perature of this part has become the ambient temperature.
Adjusting Procedure :
1. Turn the = AMS + knob and display “TEMP ADJUST”
(C09).
2. Press the [YES] button and select the “TEMP ADJUST” mode.
3. “TEMP = [OK” and the current temperature data will be
displayed.
4. To save the data, press the [YES] button.
When not saving the data, press the [MENU/NO] button.
5. When the [YES] button is pressed, “TEMP = SAVE” will
be displayed and turned back to “TEMP ADJUST” display
then. When the [MENU/NO] button is pressed, “TEMP ADJUST” will be displayed immediately.
Specified Value :
The “TEMP = ” should be within “E0 - EF”, “F0 - FF”, “00 0F”, “10 - 1F” and “20 - 2F”.
10. LASER POWER ADJUSTMENT
Check the IOP value of the optical pick-up before adjustments.
(Refer to 8. Recording and Displaying IOP Information)
Connection :
Display Procedure :
1. Turn the = AMS + knob to display “Iop Read”(C27).
2. “@@.@/##.#” is displayed and the recorded contents are displayed.
@@.@ indicates the IOP value labeled on the pick-up.
##.# indicates the IOP value after adjustment
3. To end, press the = AMS + button or [MENU/NO] but-
ton to display “Iop Read”.
Adjusting Procedure :
1. Set the laser power meter on the objective lens of the optical
pick-up. (When it cannot be set properly , press the 0 button
[]
or ) button to move the optical pick-up.)
Connect the digital volt meter to CN110 pin 5 (I+3V) and
CN110 pin 4 (IOP).
2. Turn the =
AMS + knob and display “LDPWR AD-
JUST” (C10).
(Laser power : For adjustment)
3. Press the [YES] button once and display “LD 0.9 mW $ ”.
4. Turn the = AMS+ knob so that the reading of the laser
power meter becomes 0.85 to 0.91 mW. Press the [YES] button after setting the range knob of the laser power meter, and
save the adjustment results. (“LD SAVE $ ” will be displayed for a moment.)
5. Then “LD 7.0 mW $ ” will be displayed.
6. Turn the = AMS+ knob so that the reading of the laser
power meter becomes 6.9 to 7.1 mW, press the [YES] button
and save it.
Note: Do not perform the emission with 7.0 mW more than 15 seconds
continuously.
– 25 –
[]
Page 26
7. Then, turn the = AMS + knob and display “LDPWR
CHECK” (C02).
8. Press the [YES] button once and display “LD 0.9 mW $ ”.
Check that the reading of the laser power meter become 0.85
to 0.91 mW.
9. Press the [YES] button once more and display “LD 7.0 mW $
”. Check that the reading the laser power meter and digital
volt meter satisfy the specified value.
Note down the digital voltmeter reading value.
Specification:
Laser power meter reading: 7.0 ± 0.2 mW
Digital voltmeter reading : Optical pick-up displayed value
±10%
(Optical pick-up label)
KMS260A
27X40
B0825
lOP=82.5 mA in this case
lOP (mA) = Digital voltmeter reading (mV)/1 (
10. Press the
[MENU/NO] button and display “LDPWR CHECK”
Ω
)
and stop the laser emission.
(The [MENU/NO] button is effective at all times to stop the
laser emission.)
11. Turn the = AMS + knob to display “Iop Write”(C28).
12. Press the [YES] button. When the display becomes
Ref=@@@.@ (@ is an arbitrary number), press the [YES]
button to display “Measu=@@@.@” (@ is an arbitrary number).
13. The numbers which can be changed will blink. Input the Iop
value noted down at step 9.
To select the number : Turn the =
AMS + knob.
To select the digit : Press the = AMS + knob.
14. W hen the [YES] button is pressed, “Complete!” will be displayed momentarily. The value will be recorded in the nonvolatile memory and the display will become “Iop Write”.
Note 1: After step 4, each time the[YES]button is pressed, the display
will be switched between “LD 0.7 mW $ ”, “LD 6.2 mW $
”, and “LD Wp $ ”. Nothing needs to be performed
here.
11. TRAVERSE ADJUSTMENT
Note 1:Data will be erased during MO reading if a recorded disc is
used in this adjustment.
Note 2:If the traverse waveform is not clear, connect the oscilloscope
as shown in the following figure so that it can be seen more
clearly.
BD board
CN110 pin 3 (TEO)
1
CN110 pin
(VC)
330 k
Connection :
oscilloscope
(DC range)
BD board
CN110 pin 3 (TEO)
CN110 pin
1
(VC)
Adjusting Procedure :
1. Connect an oscilloscope to CN110 pin 3 (TEO) and CN110
pin 1 (VC) of the BD board.
2. Load a disc (any available on the market). (Refer to Note 1)
3. Press the ) button and move the optical pick-up outside
[]
the pit.
4. Turn the = AMS+ knob and display “EF MO ADJUST”
(C10).
5. Press the [YES] button and display “EFB = MO-R”.
(Laser power READ power/Focus servo ON/tracking servo
OFF/spindle (S) servo ON)
6. Turn the =
AMS + knob so that the waveform of the
oscilloscope becomes the specified value.
(When the = AMS + knob is turned, the of “EFB=
” changes and the waveform changes.) In this adjustment,
waveform varies at intervals of approx. 2%. Adjust the waveform so that the specified value is satisfied as much as possible.
(Read power traverse adjustment)
(T r a v erse W a v ef orm)
VC
Ω
10 pF
+
–
oscilloscope
(DC range)
+
–
V: 0.1 V/div
H: 10 ms/div
A
B
Specification A = B
7. Press the [YES] button and save the result of adjustment to
the non-volatile memory (“EFB = SAV” will be displayed
for a moment. Then “EFB = MO-W” will be displayed).
– 26 –
Page 27
8. Turn the = AMS + knob so that the waveform of the
C1 error
about
200
B
CAFocus bias value
(F. BIAS)
oscilloscope becomes the specified value.
(When the = AMS + knob is turned, the of “EFB-
” changes and the waveform changes.) In this adjustment,
waveform varies at intervals of approx. 2%. Adjust the waveform so that the specified value is satisfied as much as possible.
(Write power traverse adjustment)
(T r av erse Wa v eform)
A
VC
B
Specification A = B
9. Press the [YES] button, and save the adjustment results in the
non-volatile memory. (“EFB = SAV” 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. Turn the = AMS + knob until the waveform of the oscilloscope moves closer to the specified value.
In this adjustment, waveform varies at interv als of approx. 2%.
Adjust the waveform so that the specified value is satisfied as
much as possible.
(T r av erse Wa v eform)
A
VC
B
Specification A = B
12. Press the [YES] b utton, and save the adjustment results in the
non-volatile memory. (“EFB = SAV” will be displayed for
a moment.)
Next “EF MO ADJUST” is displa yed. The disc stops rotating
automatically.
13. Press the [EJECT] button and take out the disc.
§
14. Load the check disc (MD) TDYS-1.
15. T urn th e = AMS+ knob and display “EF CD ADJUST”
(C12).
16. Press the [YES] button and display “EFB = CD”. Servo is
imposed automatically.
17. Turn the = AMS + knob so that the waveform of the
oscilloscope moves closer to the specified value.
In this adjustment, waveform varies at interv als of approx. 2%.
Adjust the waveform so that the specified value is satisfied as
much as possible.
18. Press the
[YES] button, display “EFB = SAV” for a mo-
ment and save the adjustment results in the non-volatile
memory.
Next “EF CD ADJUST” will be displayed.
19. Press the [EJECT] button and take out the disc.
§
12. FOCUS BIAS ADJUSTMENT
Adjusting Procedure :
1. Load the continuously-recorded disc. (Refer to “5. CREATING CONTINUOUSLY-RECORDED DISC”)
2. Turn the = AMS+ knob and display “CPLAY MODE”
(C29).
3. Press the [YES] button and display “CPLAY MID”.
4. Press the [MENU/NO] button when “C1 = AD = ” is
displayed.
5. Turn the = AMS+ knob and display “FBIAS ADJUST”
(C13).
6. Press the [YES] button and display “/ a = ”.
The first four digits indicate the C1 error rate, the two digits
after [/] indicate ADER, and the 2 digits after [a =] indicate
the focus bias value.
7. Turn the = AMS+ knob in the clockwise direction and
find the focus bias value at which the C1 error rate becomes
about 200 (Refer to Note 2).
8. Press the [YES] button and display “/ b = ”.
9. Turn the = AMS + knob in the counterclockwise direction and find the focus bias value at which the C1 error rate
becomes about 200.
10. Press the [YES] button and display “/ c = ”.
11. Check that the C1 error rate is below 50 and ADER is 00.
Then press the [YES] button.
12. If the “( )” in “ - - ( )” is above 20, press the [YES]
button.
If below 20, press the [MENU/NO] button and repeat the adjustment from step 2.
13. Press the [EJECT] button and take out the disc.
Note 1: The relation between the C1 error and focus bias is as shown in
Note 2: As the C1 error rate changes, perform the adjustment using the
§
the following figure. Find points A and B in the follo wing figure
using the above adjustment. The focal point position C is automatically calculated from points A and B.
average vale.
(T r av erse Wa v eform)
A
VC
B
Specification A = B
– 27 –
Page 28
13. ERROR RATE CHECK
13-1. CD Error Rate Check
15. AUTO GAIN CONTROL OUTPUT LEVEL
ADJUSTMENT
Checking Procedure :
1. Load the check disc (MD) TDYS-1.
2. Turn the = AMS+ knob and display “CPLAY MODE”
(C30).
3. Press the[YES]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] button, stop playback, press the
[EJECT] button and take out the check disc.
§
13-2. MO Error Rate Check
Checking Procedure :
1. Load the test disc (MDW-74/AU-1).
2. Turn the = AMS+ knob and display “CPLAY MODE”
(C30).
3. Press the[YES]button and display “CPLAY MID”.
4. The display changes to “C1 = AD = ”.
5. If the C1 error rate is below 50, check that ADER is 00.
6. Press the [MENU/NO] button, stop playback, press the
[EJECT] button and take out the test disc.
§
14. FOCUS BIAS CHECK
Change the focus bias and check the focus tolerance amount.
Checking Procedure :
1. Load the continuously-recorded disc. (Refer to “5. CREATING CONTINUOUSLY-RECORDED DISC”)
2. Turn the = AMS+ knob and display “CPLAY MODE”
(C30).
3. Press the
4. Press the [MENU/NO] button when “C1 = AD = ” is
displayed.
5. Turn the = AMS+ knob and display “FBIAS CHECK”
(C05).
6. Press the [YES] button and display “/ c = ”.
The first four digits indicate the C1 error rate, the two digits
after [/] indicate ADER, and the 2 digits after [c =] indicate
the focus bias value.
Check that the C1 error is below 50 and ADER is below 2.
7. Press the [YES] button and display “/ b = ”.
Check that the C1 error is about 200 and ADER is below 2.
8. Press the [YES] button and display “/ a = ”.
Check that the C1 error is about 200 and ADER is below 2
9. Press the [MENU/NO] button, next press the [EJECT] button and take out the disc.
[YES] button twice and display “CPLAY MID”.
§
Be sure to perform this adjustment when the pickup is replaced.
If the adjustment results becomes “Adjust NG!”, the pickup may
be faulty or the servo system circuits may be abnormal.
15-1. CD Auto Gain Control Output Level Adjustment
Adjusting Procedure :
1. Insert the check disc (MD) TDYS-1.
2. Turn the = AMS+ knob to display “AG Set (CD)” (C26).
3. When the [YES] button is pressed, the adjustment will be performed automatically.
“Complete!!” will then be displayed momentarily when the
value is recorded in the non-volatile memory, after which the
display changes to “AG Set (CD)”.
4. Press the [EJECT] button and take out the check disc.
15-2. MO Auto Gain Control Output Level Adjustment
Adjusting Procedure :
1. Insert the test disc (MDW-74/AU-1) for recording.
2. Turn the = AMS+ knob to display “A G Set (MO)” (C25).
3. When the [YES] button is pressed, the adjustment will be performed automatically.
“Complete!!” will then be displayed momentarily when the
value is recorded in the non-volatile memory, after which the
display changes to “AG Set (MO)”.
4. Press the [EJECT] button and take out the test disc.
§
§
Note 1: If the C1 error and ADER are above other than the specified
value at points a (step 8. in the above) or b (step 7. in the abov e),
the focus bias adjustment may not have been carried out properly. Adjust perform the beginning again.
– 28 –
Page 29
Adjustment Location:
– BD BOARD (Side A) –
CN101
D101
NOTE
IC171
GND
I+3V
IOP
TEO
RF
VC
CN110
– BD BOARD (Side B) –
IC101
IC121
IC192
Note: It is useful to use the jig. for checking the waveform. (Refer to
I-V converted RF signal I input from the optical pick-up block detector
I-V converted RF signal J input from the optical pick-up block detector
Middle point voltage (+1.65V) generation output terminal
Signal input from the optical pick-up detector
Light amount monitor input from the optical pick-up block laser diode
Laser amplifier output terminal to the automatic power control circuit
Reference voltage input terminal for setting laser power
Ground terminal
Connected to the temperature sensor
Output terminal for a temperature sensor reference voltage
Writing serial data input from the CXD2654R (IC121)
Serial data transfer clock signal input from the CXD2654R (IC121)
Serial data latch pulse signal input from the CXD2654R (IC121)
Standby signal input terminal “L”: standby (fixed at “H” in this set)
Center frequency control voltage input terminal of internal circuit (BPF22, BPF3T, EQ) input
from the CXD2654R (IC121)
Reference voltage output terminal Not used (open)
Center frequency setting terminal for the internal circuit (EQ)
Center frequency setting terminal for the internal circuit (BPF3T)
Power supply terminal (+3.3V)
Center frequency setting terminal for the internal circuit (BPF22)
Tracking error signal output to the CXD2654R (IC121)
Connected to the external capacitor for low-pass filter of the sled error signal
Sled error signal output to the CXD2654R (IC121)
FM signal output of the ADIP
Receives a ADIP FM signal in AC coupling
Connected to the external capacitor for ADIP AGC
ADIP duplex signal (22.05 kHz ± 1 kHz) output to the CXD2654R (IC121)
Auxiliary signal (I
Focus error signal output to the CXD2654R (IC121)
Light amount signal (ABCD) output to the CXD2654R (IC121)
Light amount signal (RF/ABCD) bottom hold output to the CXD2654R (IC121)
Light amount signal (RF/ABCD) peak hold output to the CXD2654R (IC121)
Playback EFM RF signal output to the CXD2654R (IC121)
Connected to the external capacitor for RF auto gain control circuit
Receives a RF signal in AC coupling
User comparator output terminal Not used (open)
User comparator input terminal Not used (fixed at “L”)
Connected to the external capacitor for cutting the low band of the ADIP amplifier
User operational amplifier output terminal Not used (open)
User operational amplifier inversion input terminal Not used (fixed at “L”)
RF signal output terminal
Receives a MO RF signal in AC coupling
MO RF signal output terminal
3
signal/temperature signal) output to the CXD2654R (IC121)
– 30 –
Page 31
• BD BOARD IC121 CXD2654R
(DIGITAL SIGNAL PROCESSOR, DIGITAL SERVO PROCESSOR, EFM/ACIRC ENCODER/DECODER,
SHOCK PROOF MEMORY CONTROLLER, ATRAC ENCODER/DECODER)
Pin No.Pin NameI/ODescription
1MNT0 (FOK)O
2MNT1 (SHOCK)O
3MNT2 (XBUSY)O
4MNT3 (SLOCK)O
5SWDTI
6SCLKI (S)
7XLATI (S)
8SRDTO (3)
9SENSO (3)
10XRST
11
SQSYO
Focus OK signal output to the system controller (IC501)
“H” is output when focus is on (“L”: NG)
Track jump detection signal output to the system controller (IC501)
Busy monitor signal output to the system controller (IC501)
Spindle servo lock status monitor signal output to the system controller (IC501)
Writing serial data signal input from the system controller (IC501)
Serial data transfer clock signal input from the system controller (IC501)
Serial data latch pulse signal input from the system controller (IC501)
Reading serial data signal output to the system controller (IC501)
Internal status (SENSE) output to the system controller (IC501)
I (S)
Reset signal input from the system controller (IC501) “L”: reset
Subcode Q sync (SCOR) output to the system controller (IC501)
“L” is output every 13.3 msec Almost all, “H” is output
12
13RECPI
14XINTOInterrupt status output to the system controller (IC501)
15TXI
16OSCIISystem clock signal (512Fs=22.5792 MHz) input terminal
17OSCOOSystem clock signal (512Fs=22.5792 MHz) output terminal Not used (open)
41A11O
42DVSS—Ground terminal (digital system)
43XOEOOutput enable signal output to the D-RAM (IC124) “L” active
44XCASOColumn address strobe signal output to the D-RAM (IC124) “L” active
* I (S) stands for schmitt input, I (A) for analog input, O (3) for 3-state output, and O (A) for analog output in the column I/O.
DQSYO
DIN1IDigital audio signal input terminal when recording mode (for digital optical input)
DOUTO
DATAIISerial data input terminal Not used (fixed at “L”)
LRCKIIL/R sampling clock signal (44.1 kHz) input terminal Not used (fixed at “L”)
XBCKIIBit clock signal (2.8224 MHz) input terminal Not used (fixed at “L”)
ADDTIRecording data input from the A/D, D/A converter (IC301)
DADTOPlayback data output to the A/D, D/A converter (IC301)
LRCKOL/R sampling clock signal (44.1 kHz) output to the A/D, D/A converter (IC301)
XBCKOBit clock signal (2.8224 MHz) output to the A/D, D/A converter (IC301)
A03 to A00OAddress signal output to the D-RAM (IC124)
A10O
A04 to A08OAddress signal output to the D-RAM (IC124)
Digital In U-bit CD format subcode Q sync (SCOR) output to the system controller (IC501)
“L” is output every 13.3 msec Almost all, “H” is output
Laser power selection signal input from the system controller (IC501)
“L”: playback mode, “H”: recording mode
Recording data output enable signal input from the system controller (IC501)
Writing data transmission timing input (Also serves as the magnetic head on/off output)
Input terminal for the system clock frequency setting
“L”: 45.1584 MHz, “H”: 22.5792 MHz (fixed at “H” in this set)
Digital audio signal input terminal when recording mode (for digital optical input) Not used
Digital audio signal output terminal when playback mode (for digital optical output)
Not used
Clock signal (11.2896 MHz) output terminal Not used (open)
Address signal output to the external D-RAM Not used (open)
Address signal output to the external D-RAM Not used (open)
– 31 –
Page 32
Pin No.Pin NameI/ODescription
45A09OAddress signal output to the D-RAM (IC124)
46XRASORow address strobe signal output to the D-RAM (IC124) “L” active
47XWEOWrite enable signal output to the D-RAM (IC124) “L” active
48D1I/O
49D0I/O
50D2I/O
Two-way data bus with the D-RAM (IC124)
51D3I/O
52MVCI
I (S)
Digital in PLL oscillation input from the external VCO Not used (fixed at “L”)
53ASYOOPlayback EFM full-swing output terminal
54ASYII (A)Playback EFM asymmetry comparator voltage input terminal
55AVDD—Power supply terminal (+3.3V) (analog system)
56BIASI (A)Playback EFM asymmetry circuit constant current input terminal
57RFII (A)Playback EFM RF signal input from the CXA2523AR (IC101)
58AVSS—Ground terminal (analog system)
59PCOO (3)Phase comparison output for master clock of the recording/playback EFM master PLL
60FILII (A)Filter input for master clock of the recording/playback master PLL
61FILOO (A) Filter output for master clock of the recording/playback master PLL
62CLTVI (A)Internal VCO control voltage input of the recording/playback master PLL
63PEAKI (A)Light amount signal (RF/ABCD) peak hold input from the CXA2523AR (IC101)
64BOTMI (A)Light amount signal (RF/ABCD) bottom hold input from the CXA2523AR (IC101)
65ABCDI (A)Light amount signal (ABCD) input from the CXA2523AR (IC101)
66FEI (A)Focus error signal input from the CXA2523AR (IC101)
67AUX1I (A)Auxiliary signal (I
3
signal/temperature signal) input from the CXA2523AR (IC101)
68VCI (A)Middle point voltage (+1.65V) input from the CXA2523AR (IC101)
69ADIOO (A) Monitor output of the A/D converter input signal Not used (open)
70AVDD—Power supply terminal (+3.3V) (analog system)
71ADRTI (A)A/D converter operational range upper limit voltage input terminal (fixed at “H” in this set)
72ADRBI (A)A/D converter operational range lower limit voltage input terminal (fixed at “L” in this set)
73AVSS—Ground terminal (analog system)
74SEI (A)Sled error signal input from the CXA2523AR (IC101)
75TEI (A)Tracking error signal input from the CXA2523AR (IC101)
76DCHGI (A)Connected to the +3.3V power supply
77APCI (A)Error signal input for the laser automatic power control Not used (fixed at “H”)
78ADFG
I (S)
ADIP duplex FM signal (22.05 kHz ± 1 kHz) input from the CXA2523AR (IC101)
79F0CNTOFilter f0 control signal output to the CXA2523AR (IC101)
80XLRFOSerial data latch pulse signal output to the CXA2523AR (IC101)
81CKRFOSerial data transfer clock signal output to the CXA2523AR (IC101)
82DTRFOWriting serial data output to the CXA2523AR (IC101)
83APCREFO
Control signal output to the reference voltage generator circuit for the laser automatic power
control
84LDDROPWM signal output for the laser automatic power control Not used (open)
85TRDROTracking servo drive PWM signal (–) output to the BH6511FS (IC152)
86TFDROTracking servo drive PWM signal (+) output to the BH6511FS (IC152)
87DVDD—Power supply terminal (+3.3V) (digital system)
88FFDROFocus servo drive PWM signal (+) output to the BH6511FS (IC152)
89FRDROFocus servo drive PWM signal (–) output to the BH6511FS (IC152)
* I (S) stands for schmitt input, I (A) for analog input, O (3) for 3-state output, and O (A) for analog output in the column I/O.
– 32 –
Page 33
Pin No.Pin NameI/ODescription
90FS4OClock signal (176.4 kHz) output terminal (X’tal system) Not used (open)
91SRDROSled servo drive PWM signal (–) output to the BH6511FS (IC152)
92SFDROSled servo drive PWM signal (+) output to the BH6511FS (IC152)
93SPRDOSpindle servo drive PWM signal (–) output to the BH6511FS (IC152)
94SPFDOSpindle servo drive PWM signal (+) output to the BH6511FS (IC152)
95
96
97
98
99DVSS—Ground terminal (digital system)
100EFMOOEFM signal output terminal when recording mode
* I (S) stands for schmitt input, I (A) for analog input, O (3) for 3-state output, and O (A) for analog output in the column I/O.
FGIN
TEST1I
TEST2I
TEST3I
I (S)
Input terminal for the test (fixed at “L”)
– 33 –
Page 34
• MAIN BOARD IC501 M30620MC-400FP (SYSTEM CONTROLLER)
A
Pin No.Pin NameI/ODescription
1, 2NC
3C1O
4
ADER
5SQSY
6RMC
7A1 IN
8BYTE
9CNVSS
10XT-IN
11XT-OUT
12S.RSTI
13XOUT
14GND
15XIN
16+3.3V
17
NMIINon-maskable interrupt input terminal (fixed at “H” in this set)
FLDATAOSerial data output to the FL/LED driver (IC761)
36NC
37FLCLK
38 to 40NC
41NC
42JOG1
43JOG0I
44NC
45
A1 OUTOSircs remote control signal output of the CONTROL A1 Not used
46NC
47L3-MODE
48DA RSTO
49MUTEO
ONot used (open)
Monitor output terminal for the test C1 error rate is output when test mode
O
Monitor output terminal for the test ADER is output when test mode
Subcode Q sync (SCOR) input from the CXD2654R (IC121)
I
“L” is input every 13.3 msec Almost all, “H” is input
IRemote control signal input from the remote control receiver (IC781)
ISircs remote control signal input of the CONTROL A1 Not used
IExternal data bus line byte selection signal input “L”: 16 bit, “H”: 8 bit (fixed at “L”)
—Ground terminal
ISub system clock input terminal (32.768 kHz) Not used (fixed at “L”)
OSub system clock output terminal (32.768 kHz) Not used (open)
System reset signal input from the reset signal generator (IC406) “L”: reset
For several hundreds msec. after the power supply rises, “L” is input, then it changes to “H”
OMain system clock output terminal (10 MHz)
—Ground terminal
IMain system clock input terminal (10 MHz)
—Power supply terminal (+3.3V)
Digital In U-bit CD format subcode Q sync (SCOR) input from the CXD2654R (IC121)
I
“L” is input every 13.3 msec Almost all, “H” is input
IPower down detection signal input terminal “L”: power down, normally: “H”
I
Not used (open)
I
Not used (open)
OBeep sound drive signal output terminal Not used (open)
IInterrupt status input from the CXD2654R (IC121)
ONot used (open)
Serial data transfer clock signal output to the A/D, D/A converter (IC301)
ONot used (open)
OSerial data output to the A/D, D/A converter (IC301)
Writing data output to the CXD2654R (IC121)
Reading data input from the CXD2654R (IC121)
Serial clock signal output to the CXD2654R (IC121)
OChip select signal output to the FL/LED driver (IC761)
ONot used (open)
OSerial data transfer clock signal output to the FL/LED driver (IC761)
ONot used (open)
INot used (fixed at “L”)
I
JOG dial pulse input from the rotary encoder (S713 = AMS +) (B phase input)
JOG dial pulse input from the rotary encoder (S713 = AMS +) (A phase input)
ONot used (open)
INot used (fixed at “L”)
OL3 mode control signal output to the A/D, D/A converter (IC301)
Reset signal output for the A/D, D/A converter “L”: reset Not used (open)
Audio line muting on/off control signal output terminal “L”: line muting on
Relay drive signal output for the power on/off “L”: standby mode, “H”: relay on
Detection input from the disc chucking-in detect switch “L”: chucking
Not used (fixed at “H”)
ONot used (open)
Detection input from the loading-out detect switch (S602)
“L” at a load-out position, others: “H”
Motor control signal output to the loading motor driver (IC441) “L” active *1
OMotor control signal output to the loading motor driver (IC441) “L” active *1
Loading motor drive voltage control signal output for the loading motor driver (IC441)
O
“H” active
ONot used (open)
Detection input from the recording position detect switch (S601) “L” active
Detection input from the playback position detect switch (S604) “L” active
ONot used (open)
—Power supply terminal (+3.3V)
—Ground terminal
Two-way data bus with the EEPROM (IC171)
Spindle servo lock status monitor signal input from the CXD2654R (IC121)
Laser power select signal output to the CXD2654R (IC121) and HF module switch circuit
O
“L”: playback mode, “H”: recording mode
Rec-proof claw detect input from the protect detect switch (S102) “H”: write protect
Detection input from the disc reflection rate detect switch (S102)
“L”: high reflection rate disc, “H”: low reflection rate disc
Laser diode on/off control signal output to the automatic power control circuit “H”: laser on
IInternal status (SENSE) input from the CXD2654R (IC121)
Track jump detection signal input from the CXD2654R (IC121)
Reset signal output to the CXD2654R (IC121) and BH6511FS (IC152) “L”: reset
Busy signal input from the CXD2654R (IC121)
OSerial data latch pulse signal output to the CXD2654R (IC121)
Laser modulation select signal output to the HF module switch circuit
Playback power: “H”, Stop: “L”,
Recording power:
—Power supply terminal (+3.3V) (for analog system )
I
Recording mode switch input terminal “L”: mono, “H”: stereo Not used (open)
76MOD
77LIMIT-IN
78
*1 Loading motor (M103) control
Terminal
MNT0 (FOK)
LDIN (pin %¢)
LDOUT (pin %∞)
Mod
O
2 sec
Detection input from the sled limit-in detect switch (S101)
I
The optical pick-up is inner position when “L”
Focus OK signal input from the CXD2654R (IC121)
I
“H” is input when focus is on (“L”: NG)
LOADINGEJECTBRAKERUN IDLE
“L”“H”“L”“H”
“H”“L”“L”“H”
– 35 –– 36 –
Page 36
MDS-M100
6-2.BLOCK DIAGRAM – MD SERVO Section –
HR901
OVER WRITE HEAD
48 47
APC
PD
I
J
A
B
C
D
E
F
IN4R
IN4F
IN2F
IN2R
IN1F
IN1R
IN3F
IN3R
RF AMP
I-V
AMP
I-V
AMP
LD/PD
AMP
16PSB
3
4
29
30
19
18
14
15
MORFO
SPFD
SPRD
F
C B
IJ
D A
E
LASER DIODE
OPTICAL PICK-UP
(KMS-260A/J1NP)
2-AXIS
DEVICE
(TRACKING)
HF MODULE
DETECTOR
LDPD
(SPINDLE)
FCS+
(FOCUS)
05
ILCC
M101
M102
(SLED)
FCS–
TRK+
TRK–
MOD
I
J
B
A
C
D
E
F
AUTOMATIC
POWER
CONTROL
Q162, 163
LASER ON
PD
SWITCH
Q101
FOCUS/TRACKING COIL DRIVE,
SPINDLE/SLED MOTOR DRIVE
6
M
8
27
M
25
21
23
12
10
1
2
4
5
6
7
8
9
11
10
IC152
OUT4F
OUT4R
OUT2F
OUT2R
OUT1F
OUT1R
OUT3F
OUT3R
– 37 –
MORFI
OVER WRITE
HEAD DRIVE
IC181, Q181, 182
RFO
46
B.P.F.
3T
AT
AMP
CONVERTER
APCREF
12
APCREF
83
SFDR
92
SRDR
91
FFDR
88
FRDR
89
TFDR
86
TRDR
85
SCTX
WBL
B.P.F.
ABCD
AMP
WBL3TEQ
V-I
F0CNT
20
FOCUS/TRACKING ERROR AMP
40
TEMP
ADFM
2930
FOCUS
ERROR AMP
TRACKING
ERROR AMP
13
RECP
AUTOMATIC
POWER
CONTROL
DIGITAL
SERVO
SIGNAL
PROCESS
PWM GENERATOR
DIGITAL SERVO
SIGNAL PROCESSOR
DIGITAL SIGNAL PROCESSOR,
EFM/ACIRC ENCODER/DECODER,
SHOCK PROOF MEMORY CONTROLLER,
ATRAC ENCODER/DECODER
IC121 (1/2)
RF AMP,
IC101
& EQ
EQ
SCLK
171618
AUX
WBL
PEAK
BOTM
ADFG
ABCD
XLAT
67
AUX1
RF
38
33
37
36
32
35
FE
34
TE
26
SE
28
65
66
FE
ABCD
ANALOG MUX
A/D CONVERTER
FROM CPU
INTERFACE
AUTO
SEQUENCER
AGCI
PEAK &
BOTTOM
ADIN
COMMAND
SERIAL/
PARALLEL
CONVERTER,
DECODER
SWDT
IC121 (2/2)
RF AGC
LDON
15
TX
SHOCK PROOF
MEMORY CONTROLLER
SENS
9 85 6 7
5
18
237132
XINT
SQSY
DQSY
ATRAC
ENCODER/DECODER
CPU
INTERFACE
SRDT
SWDT
SCLK
XLAT
31 33 7578 72 74 66
SRDT
SWDT
SCLK
XLATCH
SENS
SAMPLING
RATE
CONVERTER
DIGITAL
AUDIO
INTERFACE
INTERNAL BUS
MONITOR
CONTROL
MNT0
MNT1
1 2 3 4
FOK
SHOCK
MNT0 (FOK)
MNT1 (SHOCK)
ADDT
25
DATAI
22
XBCKI
24
LRCKI
23
DIN0
19
DIN1
20
DOUT
21
DADT
26
MNT2
MNT3
SLOCK
XBUSY
MNT3 (SLOCK)
MNT2 (XBUSY)
WAVE SHAPER
28
2927
XBCK
LRCK
FS256
CLOCK
GENERATOR
SYSTEM CONTROLLER
IC501 (1/2)
IC601 (1/2)
OSCI
OSCO
XOE
XWE
XRAS
XCAS
16
17
D0 – D3A00 – A09
49, 48, 50, 51
34 – 31, 36 – 40, 45
4316
473
464
4417
SCTX
DIVIDER
IC123
1, 2, 18, 19
6 – 9, 11 – 15, 5
80
DQ1 – DQ4
D-RAM
IC124
A0 – A9
XOE
XWE
XRAS
XCAS
ADDT
DIGITAL IN
OPTICAL
RECEIVER
IC611
DADT, BCK, LRCK
512FS
• SIGNAL PATH
(Page 39)
A
(Page 39)
B
(Page 39)
C
: PLAY (ANALOG OUT)
FILTER
100
60
59
62
61
53
54
57
78
79
IC121 (1/2)
EFMO
FILI
PCO
CLTV
FILO
ASYO
ASYI
RFI
ADFG
F0CNT
PLL
COMPA-
RATOR
ADIP
DEMODULATOR/
DECODER
SPINDLE
SERVO
SPFD
94 93
SPRD
PROCESSOR
XRST
10
EFM/ACIRC
ENCODER/DECODER
SUBCODE
DQSY11SQSY14XINT
12
70
: REC (ANALOG IN)
DIG-RST
73
67
WR-PWR
MOD
76
75
64
74
63
TE
SE
PEAK
BOTM
LOADING
MOTOR DRIVE
IC441
XLRF
CKRF
DTRF
XLAT
80
SCLK
81
SWDT
82
HF MODULE
SWITCH
IC103, Q102 – 104
LDIN
54
55
5
IN1IN2
OUT1 OUT2
2
10
M
M103
(LOADING)
LDOUT
6
UNREG
+12V
4
REFERENCE
VOLTAGE SWITCH
Q441, 442
56
LD-LOW
VZ
LIMIT-IN
REC-P
PACK-OUT
PB-P
REFLECT
PROTECT
77
59
53
60
69
68
S102
(REFLECT/PROTECT DETECT)
HIGH REFELECT RATE/
WRITE PROTECT
LOW REFELECT RATE/
UN-PROTECT
(LIMIT IN)
(REC POSITION)
(PACK OUT)
(PLAY POSITION)
: REC (DIGITAL IN)
S101
S601
S602
S604
– 38 –
Page 37
6-3.BLOCK DIAGRAM – MAIN Section –
A
(Page 38)
ADDT
DATAO
18
A/D, D/A CONVERTER
IC301
DIGITAL MIXER,
DECIMATION
FILTER
A/D
CONVERTER
BLOCK
0dB/6dB
SWITCH
VINL1
VINR1
MDS-M100
• SIGNAL PATH
J101
2
4
L
R
LINE
(ANALOG) IN
: PLAY (ANALOG OUT)
: REC (ANALOG IN)
B
(Page 38)
C
(Page 38)
C769, R769
X513
10MHz
OSC
DADT, BCK,
LRCK
512FS
DIGITAL
INTERFACE
L3DATA
L3CLK
15 14 13
30
28
L3-DATA
L3-CLOCK
RST
60521
DSP FEATURE,
INTERPOLATION
FILTER
PEAK DET
L3MODE
47
L3-MODE
NOISE
SHAPER
LED0
LED1
83
84
LED DRIVE
Q742
LED DRIVE
Q741
CONVERTER
CLOCK
GENERATOR
SYSTEM CONTROLLER
IC501 (2/2)
D742
·
D741
r REC
DADT
BCK
LRCK
XIN
15
XOUT
13
59
OSCI
OSCO
58
P1
DATAI
19
BCK
16
WS
17
L3-BUS INTERFACE
EEPROM
IC171
SDA
SCL
56
7965
SCL
SDA
FLDATA
FLCLK
FLCS
35 37 3419 12 50
6162
63
CS
CLK
DAT
FL/LED DRIVER
IC761
5 – 39
G1 – G12S1 – S35
40 – 51
G13
D/A
BLOCK
VOUTL
VOUTR
SYSCLK
26
24
12
ROTARY
ENCODER
GND
= AMS +
PUSH ENTER
JOG0
1 3
A
S713
4243
B
JOG1
SW
LINE AMP
IC381 (1/2)
LINE AMP
IC381 (2/2)
OSC
IC351
KEY0 – KEY2
54
LOW-PASS
IC386 (1/2)
LOW-PASS
IC386 (2/2)
22.5792MHz
REMOTE CONTROL
RECEIVER
97, 95, 94
FILTER
FILTER
X351
IC781
RMC
92
SOURCE
S731
INPUT
ANALOG
DIGITAL
MUTING
Q191, 291
MUTING
CONTROL SWITCH
Q390
D391
496
MUTE
P.DOWN
STB
S.RST
D390
L
LINE
(ANALOG) OUT
R
+5V
MD MECHANISM
DECK SECTION B+
+3.3V
MD MECHANISM
DECK SECTION,
DIGITAL IN CIRCUIT B+
+3.3V
REGULATOR
IC192
ANALOG
LINE OUT
CIRCUIT
–32V
(FL DRIVER (IC761) B–)
LOADING MOTOR
DRIVER (IC441) B+
+5V
REGULATOR
IC411
UNREG +6V
UNREG –6V
–32V
REGULATOR
IC421
UNREG +12V
AC
(TO FL771)
RECT
D411, 412
RECT
D461, 462,
D466, 467
RECT
D421
AC F-1
AC F-2
T901
POWER
TRANSFORMER
RELAY DRIVE
D408
Q911
LITHIUM
BATTERY
+3.3V
REGULATOR
IC401
BT406
– 40 –
G1 – G12
FL771
FL DRIVE
Q767
G13
S701 – 706, 711, 712,
S714, 721 – 726
RESET SIGNAL
GENERATOR
IC406
SYS +3.3V
D409D406
BACK UP +3.3V
LED DRIVE
Q751
SEG1 – SEG35
D751
I/u
05
FLUORESCENT INDICATOR TUBE
– 39 –
RY901
RECT
D401 – 404
POWER DOWN
DETECT
IC601 (2/2)
D431
T910
POWER
TRANSFORMER
D432
D433
VOLTAGE
SELECTOR
S951
(Singapore)
(EXCEPT Singapore)
AC IN
Page 38
• Circuit Boards Location
B
These are omitted.
CE
Q
d
6-4.NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
BD board
PANEL 2 board
TRANS board
PANEL board
AC SELECT board (Singapore)
SW board
MAIN boar
Note on Printed Wiring Board:
• X : parts extracted from the component side.
• Y : parts extracted from the conductor side.
•p: parts mounted on the conductor side.
®
•
• b : Pattern from the side which enables seeing.
Caution:
Pattern face side:Parts on the pattern face side seen from
(Side B)the pattern face are indicated.
Parts face side:Parts on the par ts face side seen from
(Side A)the parts face are indicated.
• Indication of transistor.
• Abbreviation
: Through hole.
CND: Canadian model
SP: Singapore model
Note on Schematic Diagram:
• 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/
specified.
•%: indicates tolerance.
¢
•
• C : panel designation.
• U : B+ Line.
• V : B– Line.
• V oltages and wav eforms are dc with respect to ground in
• Voltages are tak en with a V OM (Input impedance 10 MΩ).
• Waveforms are taken with a oscilloscope.
• Circled numbers refer to wavefor ms.
• Signal path.
• Abbreviation
: internal component.
Note:
The components identified by mark ! or dotted
line with mark ! are critical for safety.
Replace only with part
number specified.
playback mode.
Voltage variations may be noted due to normal produc-
tion tolerances.
Voltage variations may be noted due to normal produc-
tion tolerances.
E: PLAY (ANALOG OUT)
j: REC (ANALOG IN)
l : REC (DIGITAL IN)
CND: Canadian model
SP: Singapore model
4
W or less unless otherwise
Note:
Les composants identifiés par
une marque ! sont critiques
pour la sécurité.
Ne les remplacer que par une
piéce portant le numéro
spécifié.
– 41 –
– 42 –
Page 39
6-5.PRINTED WIRING BOARD – BD Board – • See page 41 for Circuit Boards Location.
The components identified by
mark ! or dotted line with
mark ! are critical for safety.
Replace only with part number specified.
Les composants identifiés par une
marque ! sont critiques pour la
sécurité.
Ne les remplacer que par une pièce
portant le neméro spécifié.
Page 55
BD
Ref. No.Part No.DescriptionRemark
< IC/TRANSISTOR >
IC1018-752-080-95 IC CXA2523AR
IC1038-729-903-10 TRANSISTOR FMW1
IC1218-752-389-44 IC CXD2654R
IC1238-759-096-87 IC TC7WU04FU (TE12R)
IC1248-759-334-38 IC MSM51V4400-70TS-K
IC1528-759-430-25 IC BH6511FS-E2
IC1718-759-487-04 IC BR24C02F-E2
IC1818-759-481-17 IC MC74ACT08DTR2
IC1928-759-460-72 IC BA033FP-E2
R1031-216-049-11 RES, CHIP1K5%1/10W
R1041-216-073-00 METAL CHIP10K5%1/10W
R1051-216-065-00 RES, CHIP4.7K5%1/10W
R1061-216-133-00 METAL CHIP3.3M5%1/10W
R1071-216-113-00 METAL CHIP470K5%1/10W
R1321-216-097-91 RES, CHIP100K5%1/10W
R1331-216-117-00 METAL CHIP680K5%1/10W
R1341-216-049-11 RES, CHIP1K5%1/10W
R1351-216-061-00 METAL CHIP3.3K5%1/10W
R1361-216-049-11 RES, CHIP1K5%1/10W
R1371-216-295-00 SHORT0
R1401-216-029-00 METAL CHIP1505%1/10W
R1421-216-073-00 METAL CHIP10K5%1/10W
R1431-216-073-00 METAL CHIP10K5%1/10W
R1441-216-025-00 RES, CHIP1005%1/10W
R1451-216-073-00 METAL CHIP10K5%1/10W
R1461-216-037-00 METAL CHIP3305%1/10W
R1471-216-025-00 RES, CHIP1005%1/10W
R1481-216-045-00 METAL CHIP6805%1/10W
R1491-216-073-00 METAL CHIP10K5%1/10W
R1501-216-295-00 SHORT0
R1511-216-073-00 METAL CHIP10K5%1/10W
R1521-216-073-00 METAL CHIP10K5%1/10W
R1581-216-097-91 RES, CHIP100K5%1/10W
R1591-216-097-91 RES, CHIP100K5%1/10W
R1601-216-295-00 SHORT0
R1611-216-057-00 METAL CHIP2.2K5%1/10W
R1621-216-057-00 METAL CHIP2.2K5%1/10W
R1631-216-057-00 METAL CHIP2.2K5%1/10W
R1641-216-045-00 METAL CHIP6805%1/10W
R1651-216-097-91 RES, CHIP100K5%1/10W
R1661-220-149-11 RESISTER2.210%1/2W
R1671-216-065-00 RES, CHIP4.7K5%1/10W
R1691-219-724-11 METAL CHIP11%1/4W
R1701-216-073-00 METAL CHIP10K5%1/10W
R1711-216-073-00 METAL CHIP10K5%1/10W
R1731-216-121-00 RES, CHIP1M5%1/10W
R1751-216-065-00 RES, CHIP4.7K5%1/10W
R1771-216-061-00 METAL CHIP3.3K5%1/10W
R1791-216-085-00 METAL CHIP33K5%1/10W
R1801-216-073-00 METAL CHIP10K5%1/10W
R1821-216-089-00 RES, CHIP47K5%1/10W
R1831-216-089-00 RES, CHIP47K5%1/10W
R1841-216-073-00 METAL CHIP10K5%1/10W
R1851-216-081-00 METAL CHIP22K5%1/10W
R1861-216-089-00 RES, CHIP47K5%1/10W
R1881-216-073-00 METAL CHIP10K5%1/10W
R1891-216-073-00 METAL CHIP10K5%1/10W
R1901-216-073-00 METAL CHIP10K5%1/10W
R1951-216-073-00 METAL CHIP10K5%1/10W
IC3018-759-553-65 IC UDA1341TS/N2
IC3518-759-917-18 IC SN74HCU04AN
IC3818-759-634-50 IC M5218AL
IC3868-759-634-50 IC M5218AL
IC4018-759-445-59 IC BA033T
IC4068-759-481-02 IC M62016L
IC4118-759-231-53 IC TA7805S
IC4218-759-633-42 IC M5293L
IC4418-759-822-09 IC LB1641
IC5018-759-577-40 IC M30620MC-400FP
IC6018-759-917-18 IC SN74HCU04AN
IC6118-749-012-70 IC GP1F38R (DIGITAL OUT)