Sony 4-216-349-5 User Manual
MDS-JE330
SERVICE MANUAL
SPECIFICATIONS
US Model
Canadian Model
AEP Model
UK Model
E Model
Australian Model
Model Name Using Similar Mechanism MDS-JE520
MD Mechanism Type MDM-5A
Optical Pick-up Type KMS-260A/J1N
MICROFILM
— Continued on next page —
MINIDISC DECK
– 1 –
SELF-DIAGNOSIS FUNCTION
The self-diagnosis function consists of error codes for customers which are displayed automatically when errors occur, and error codes whic h
show the error history in the test mode during servicing. For details on how to view error codes for the customer, refer to the following box
in the instruction manual. For details on how to check error codes during servicing, refer to the following “Procedure for using the SelfDiagnosis Function (Error History Display Mode)”.
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 b utton to e xit
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. Rotate the AMS knob and when “[Service]” is displayed, press the YES button.
3. Rotate the AMS knob and display “ERR DP MODE”.
4. Pressing the YES button sets the error history mode and displays “total rec”.
5. Select the contents to be displayed or executed using the AMS knob.
6. Pressing the AMS knob will display or execute the contents selected.
7. Pressing the AMS knob another time returns to step 4.
8. Pressing the MENU/NO button displays “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 –
ITEMS OF ERROR HISTORY MODE ITEMS AND CONTENTS
Selecting the Test Mode
Display
total rec
total play
retry err
total err
err history
er refresh
Details of History
Displays the recording time.
Displayed as “rππππππh”.
The displayed time is the total time the laser is set to the high power state.
This is about 1/4 of the actual recording time.
The time is displayed in decimal digits from 0h to 65535h.
Displays 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.
Displays 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.
Displays the total number of errors.
Displayed as “total ππ”.
The number of errors is displayed in hexadecimal digits from 00 to FF.
Displays 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 rotating the AMS knob.
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 AMS button and “er refresh?” is displayed, press the YES button to erase 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
Table of Error Codes
Error Code
E00
E01
E02
E03
E04
No error
Read error. PTOC cannot be read
(DISC ejected)
TOC error. UTOC error
(DISC not ejected)
Loading error
Address cannot be read (Servo has deviated)
Mode 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 AMS button and “tm refresh?” is displayed, press the YES button to erase 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.
Details of Error
Error Code
E05
E06
E07
E08
E09
E0A
Details of Error
FOK has deviated
Cannot focus (Servo has deviated)
Recording retry
Recording retry error
Playback retry error
(Access error)
Play retry error (C2 error)
– 3 –
CAUTION
Danger of explosion if battery is incorrectly replaced.
Replace only with the same or equivalent type recommended by
the equipment manufacturer.
Discard used batteries according to manufacture’s instructions.
ADVARSEL!
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.
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 feilakting skifte av batteri.
Benytt samme batteritype eller en tilsvarende type anbefalt av
apparatfabrikanten.
Brukte batterier katterier kasseres i henhold til fabrikantens
VARNIG
Explosionsfara vid felaktigt batteribyte.
Använd samma batterityp eller en likvärdig typ som rekommenderas
av apparattillverkaren.
Kassera använt batteri enligt gällande föreakrifter.
VAROITUS
Parist voi räjähtää, jos se on virheellisesti asennettu.
V aihda paristo ainoastaan laite valmistajan suosittelemaan tyyppiin.
Hävitä käytetty paristo valmistajan ohjeiden mukaisesti.
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 chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be
damaged by heat.
Flexible Circuit Board Repairing
• Keep the temperature of 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.
SAFETY-RELATED COMPONENT WARNING !!
COMPONENTS IDENTIFIED BY MARK ! OR DO TTED LINE
WITH MARK ! 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 ! SUR
LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES
PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE
FONCTIONNEMENT. NE REMPLA CER CES COMPOSANTS
QUE PAR DES PIÈCES SONY DONT LES NUMÉROS
SONT DONNÉS DANS CE MANUEL OU DANS LES
SUPPLÉMENTS PUBLIÉS PAR SONY .
– 4 –
SAFETY CHECK-OUT
TABLE OF CONTENTS
After correcting the original service problem, perform the following safety checks before releasing the set to the customer:
Check the antenna terminals, metal trim, “metallized” knobs, screws,
and all other exposed metal parts for A C leakage. Check leakage as
described below.
LEAKAGE
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. Follow the manufacturers’ instructions to use these
instruments.
2. A battery-operated AC milliammeter. The Data Precision 245
digital multimeter is suitable for this job.
3. Measuring the voltage drop across a resistor by means of a V OM
or battery-operated A C v oltmeter. The “limit” indication is 0.75
V, so analog meters must have an accurate low-voltage 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 2V AC range are suitable. (See Fig. A)
To Exposed Metal
Parts on Set
0.15µF
1.5k
Ω
AC
voltmeter
(0.75V)
1. SERVICING NOTE .......................................................... 6
2. GENERAL ........................................................................ 11
3. DISASSEMBLY
3-1. Case and Front Panel .......................................................... 12
3-2. Slider (Cam)........................................................................12
3-3. Base Unit (MBU-5A) and BD Board..................................13
3-4. SW Board and Loading Motor (M103) .............................. 13
4. TEST MODE .....................................................................14
5. ELECTRICAL ADJUSTMENTS ............................... 19
6. DIAGRAMS
6-1. Circuit Boards Location ...................................................... 28
6-2. Block Diagrams
• BD Section ....................................................................... 29
• Main Section .................................................................... 31
6-3. Printed Wiring Board – BD Section –................................. 35
6-4. Schematic Diagram – BD Section – (1/2)...........................37
Schematic Diagram – BD Section – (2/2)...........................39
6-5. Schematic Diagram – Main Section – (1/2)........................ 41
Schematic Diagram – Main Section – (2/2)........................ 43
6-6. Printed Wiring Board – Main Section – .............................. 45
6-7. Printed Wiring Board – Panel Section – ............................. 47
6-8. Schematic Diagram – Panel Section – ................................ 49
6-9. Schematic Diagram – BD Switch Section – ....................... 51
6-10. Printed Wiring Board – BD Switch Section –.................. 51
6-11. IC Block Diagrams ........................................................... 52
6-12. IC Pin Functions ............................................................... 55
Earth Ground
Fig. A. Using an AC voltmeter to check AC leakage.
MODEL IDENTIFICATION
— BACK PANEL —
Parts No.
4-216-349-0π US model
4-216-349-1π Canadian model
4-216-349-2π AEP, UK model
4-216-349-3π Australian model
4-216-349-4π Singapore model
4-216-349-5π Hong Kong model
7. EXPLODED VIEWS
7-1. Case and Back Panel Section .............................................. 61
7-2. Front Panel Section ............................................................. 62
7-3. Mechanism Section (MDM-5A) ......................................... 63
7-4. Base Unit Section (MBU-5A)............................................. 64
8. ELECTRICAL PARTS LIST ........................................ 65
– 5 –
SECTION 1
3
r
SERVICING NOTE
JIG FOR CHECKING BD BOARD WAVEFORM
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
VC
RF
TEO
IOP
I+3V
GND
RF
VC
TEO
5P Connector
CN110
6P connecto
1
RF
VC
For
TEO
MDM-
IOP
I-3V
5
1
IOP
I+3V
GND
VC
RF
For
TEO
MDM-5
IOP
I+3V
6
GND
– 6 –
IOP DATA RECORDING AND DISPLAY WHEN OPTICAL PICK-UP AND NON-VOLATILE MEMORY (IC171 OF
BD BOARD) ARE REPLACED
The IOP value labeled on the optical pick-up can be recorded in the non-volatile memory. By recording the value, it will eliminate the need
to look at the value on the label of the optical pick-up. When replacing the optical pick-up or non-volatile 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. Rotate the AMS knob to display “[Service]”, and press the YES button.
3. Rotate the AMS knob to display “lop.Write”, 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 : Rotate 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. Rotate the AMS knob to display “[Service]”, and press the YES button.
3. Rotate the AMS knob to display “lop.Read”.
4. “@@.@/##.#” is displayed and the recorded contents are displayed.
@@.@ : indicates the Iop value labeled on the pick-up.
##.# : indicates the Iop value after adjustment
5. To end, press the AMS button or MENU/NO button to display “Iop Read”. Then press the REPEAT button.
– 7 –
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
(5-6-2 : See page 21)
Traverse check
(5-6-3 : See page 21)
Focus bias check
(5-6-4 : See page 22)
C PLAY check
(5-6-5 : See page 22)
Self-recording/playback
check
(REC/PLAY)
(5-6-6 : See page 22)
TEMP check
(Temperature
compensation
offset check)
(5-6-1 : See page 21)
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 : Below 220
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)
Measure if unsatisfactory:
• 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)
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.
FORCED RESET
The system microprocessor can be reset in the following procedure.
Use these procedure when the unit cannot be operated normally due to the overrunning of the microprocessor, etc.
Procedure :
Remove the short-pin attached to CN406, and then attach it again.
[MAIN BOARD] (Component Side)
CN406
– 8 –
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.
Procedure:
1. Procedure 1: Press the p button continuously for about 10 seconds.
Procedure 2: Press the LEVEL/DISPLAY/CHAR button while pressing the p button and MENU/NO button.
2. When the mode is set, “RTs 00c 00e 00” is displayed.
3. Press the r REC button to start recording. Then press the P button and start recording.
4. To check the “track mode”, press the · button to start play.
5. To e xit the test mode, press the 1/u button, and turn OFF the po wer . When “T OC” disappears, disconnect the power plug from the outlet.
If the test mode cannot be exited, refer to “Forced Reset” on page 8.
Fig. 1 Reading the Test Mode Display
(During recording and stop)
RTs@@c##c**
Fluorescent display 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
01
02
04
08
10
20
40
80
Fig. 2 Reading the Test Mode Display
(During playback)
@@####**$$
Fluorescent display tube display
@@ : Parts No. (name of area named on TOC)
## : Cluster
** : Sector
$$ : Track mode (Track information such as copyright
Cause of Retry Occurring conditions
shock
ader5
Discontinuous address
DIN unlock
FCS incorrect
IVR rec error
CLV unlock
Access fault
} Address (Physical address on disc)
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
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 b2
The retry cause in this case is combined of “access fault”, “IVR rec error”, and “ader5”.
– 9 –
Reading the Track Mode Display
Higher Bits Lower 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”.
84218421
b7 b6 b5 b4 b3 b2 b1 b0
00000001
00000010
00000100
00001000
00010000
00100000
01000000
10000000
Hexa-
decimal
01
02
04
08
10
20
40
80
When 0 When 1
Emphasis OFF
Monaural
This is 2-bit display. Normally 01.
01:Normal audio. Others:Invalid
Audio (Normal)
Original
Copyright
Write prohibited
Details
Emphasis ON
Stereo
Invalid
Digital copy
No copyright
Write allowed
Hexadecimal n Binary Conversion Table
Hexadecimal Binary Hexadecimal Binary
0
1
2
3
4
5
6
7
0000
0001
0010
0011
0100
0101
0110
0111
8
9
A
B
C
D
E
F
1000
1001
1010
1011
1100
1101
1110
1111
– 10 –
Front Panel
SECTION 2
GENERAL
2 4 6 7 89101112135
LOCATION OF PARTS AND CONTROLS
1 STANDBY indicator
2 1/u (Power) button
3 PLAY MODE button
4 REPEAT button
5 LEVEL/DISPLAY/CHAR button
6 DISK compartment
7 MENU/NO button
8 YES button
9 0 button
10 ) button
11 r REC (Recording) button
12 INPUT DIGITAL/ANALOG switch
13 p (stop) button
14 P (Pause) button
15 · (Play) button
16 ≠ AMS ± PUSH ENTOR knob
17 CLEAR button
18 § (Eject) button
19 DISPLAY window
• AMS is the abbreviation for Automatic Music Sensor.
171819
13141516
– 11 –
SECTION 3
DISASSEMBLY
Note: Follow the disassembly procedure in the numerical order given.
3-1. CASE AND FRONT PANEL
2
Two screws (Case)
6
Front panel assembly
3
Case
4
Flat type wire (CN421)
1
Two screws (Case)
3-2. SLIDER (CAM)
2
Bracket (Guide L)
1
Two screws (BTP2.6x6)
3
Leaf spring
6
Slider (Cam)
5
Five screws (BVTP3x8)
• Note for Installation of Slider (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.
4
Two screws (BTP2.6x6)
5
Bracket (Guide R)
– 12 –
3-3. BASE UNIT (MBU-5A) AND BD BOARD
)
5
Flexible board
(CN104)
6
Flexible board
(CN101)
2
Base unit (MBU-5A)
1
Three screws
(BTP2.6x6)
4
Screw (M1.7x4)
3-4. SW BOARD AND LOADING MOTOR (M103)
3
Two screws
(PWH1.7x3)
7
BD board
2
Gear B
3
1
Screw (PTPWH M2.6x6)
4
Loading motor (M103
Remove the solder (Five portion)
6
SW board
5
Two screws (BTP2.6x6)
– 13 –
SECTION 4
TEST MODE
4-1. PRECAUTIONS FOR USE OF TEST MODE
• As loading related operations will be performed regardless of the test mode operations being performed, be sure to check that the disc is
stopped before setting and removing it.
Even if the §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.
4-1-1. 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 rREC button.
4-2. SETTING THE TEST MODE
The following are two methods of entering the test mode.
Procedure 1:While pressing the AMS knob and p b utton, connect the power plug to an outlet, and release the AMS knob and p button.
When the test mode is set, “[Check]” will be displayed. Rotating the AMS knob switches between the follo wing four groups;
···Nn Check Nn Adjust Nn Service Nn Develop Nn ···.
Procedure 2:While pressing the AMS knob, connect the power plug to the outlet and release the AMS 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.
4-3. EXITING THE TEST MODE
Press the REPEAT button. The disc is ejected when loaded, and “Standby” display blinks, and the STANDBY state is set.
4-4. 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 name
AMS knob
YES button
MENU/NO button
Changes parameters and modes
Proceeds onto the next step. Finalizes input.
Returns to previous step. Stops operations.
Function
– 14 –
4-5. SELECTING THE TEST MODE
There are 24 types of test modes as shown below. The groups can be switched by rotating the AMS knob. After selecting the group to be
used, press the YES button. After setting a certain group, rotating 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
S curve CHECK
VERIFY MODE
DETRK CHECK
TEMP ADJUST
LDPWR ADJUST
EF MO ADJUST
EF CD ADJUST
FBIAS ADJUST
EEP MODE
Impossible
ERR DP MODE
ADJ CLEAR
AG Set (MO)
AG Set (CD)
Iop Read
Iop Write
S40 @@.@@
CPLAY MODE
CREC MODE
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
No function
Error history display, clear
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)
Group (*)
CS
C S
CS
CS
CS
C
C
C
AS
AS
AS
AS
AS
D
D
S
AS
AS
AS
CS
AS
CS
CASD
CASD
Group (*)
C: Check
S: Service
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.
– 15 –
4-5-1. Operating the Continuous Playback Mode
1. Entering the continuous playback mode
1 Set the disc in the unit. (Whichever recordable discs or discs for playback only are available.)
2 Rotate the AMS knob and display “CPLAY MODE”.
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” 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 “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 to remove the disc.
Note : The playback start addresses for IN, MID, and OUT are as follows.
IN 40h cluster
MID 300h cluster
OUT 700h cluster
4-5-2. 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 Rotate the AMS knob and display “CREC MODE”.
3 Press the YES button to change the display to “CREC MID”.
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.
“CPLAY MID” n “CPLAY OUT” n “CPLAY 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 ( )” and REC lights up.
Note : The numbers “ ” displayed shows you the recording position addresses.
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 § button to remove the disc.
Note 1 : The recording start addresses for IN, MID, and OUT are as follows.
IN 40h cluster
MID 300h cluster
OUT 700h cluster
Note 2 :The MENU/NO button can be used to stop recording anytime.
Note 3 :Do not perform continuous recording for long periods of time above 5 minutes.
Note 4 :During continuous recording, be careful not to apply vibration.
4-5-3. 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.
– 16 –
4-6. FUNCTIONS OF OTHER BUTTONS
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)
¢
p
)
0
PLAY MODE n LEVEL/DISPLAY/CHAR (*)
PLAY MODE n PLAY MODE (*)
LEVEL/DISPLAY/CHAR
§
REPEAT
Function
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 ˜ CLV A).
Switches the displayed contents each time the button is pressed
Ejects the disc
Exits the test mode
Contents
(*)When displayed as “PLAY MODEnPLAY MODE”, it means to press the PLAY MODE button, and then press it again. When pressed
the first time, the fluorescent display tube displays “PROGRAM”.
4-7. TEST MODE DISPLAYS
Each time the LEVEL/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 =
AD =
C1 = Indicates the C1 error.
AD = Indicates ADER.
3. Address display
The address is displayed as follows. (MO:recordable disc, CD:playback only disc)
If the LEVEL/DISPLAY/CHAR button is pressed after pressing the
PROGRAM button, the display switches from groove to pit or vice versa.
h = s = (MO pit and CD)
h = a = (MO groove)
h = Indicates the header address.
s = Indicates the SUBQ address.
a = Indicates the ADIP address.
Note: “–” is displayed when servo is not imposed.
4. Auto gain display (Not used in servicing)
The auto gain is displayed as follows.
AG = / [ ]
5. Detrack check display (Not used in servicing)
The detrack is displayed as follows.
ADR =
6. IVR display (Not used in servicing)
The IVR is displayed as follows.
[ ][ ][
– 17 –
MEANINGS OF OTHER DISPLAYS
Display
¢
P
REC
SYNC
L.SYNC
OVER
B
ATRACK
DISC
SLEEP
MONO
PROGRAM
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
When the PLAY MODE button is pressed
When Lit
Contents
When Off
STOP (CLV: OFF)
Tracking servo ON
Recording mode OFF
CLV normal mode
Tracking offset cancel OFF
Groove
Low reflection
CL V A
CLV UNLOCK
– 18 –
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