SONY CDP CX260 Service Manual
MICROFILM
CDP-CX260
SERVICE MANUAL
Model Name Using Similar Mechanism CDP-CX200
CD Mechanism Type CDM-40B
Base Unit Type KSM-213BKN/M-N
Optical Pick-up Type KSS-213B/S-N
SPECIFICATIONS
US Model
Canadian Model
AEP Model
UK Model
COMPACT DISC PLAYER
– 1 –
Laser component in this product is capable of emitting radiation
0.15µF
To Exposed Metal
Parts on Set
1.5k
Ω
AC
voltmeter
(0.75V)
Earth Ground
exceeding the limit for Class 1.
This appliance is classified as
a CLASS 1 LASER product.
The CLASS 1 LASER PR ODUCT MARKING is located on
the rear exterior.
The following
caution label is
located inside of
the unit.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous radiation exposure.
SAFETY CHECK-OUT
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 AC leaka ge. 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. F ollow 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 AC voltmeter. 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)
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 DOTTED 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.
Fig. A. Using an AC voltmeter to check AC leakage.
MODEL IDENTIFICATION
— BACK PANEL —
PART NO.
ATTENTION AU COMPOSANT AYANT RAPPORT
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 P AR SONY.
À LA SÉCURITÉ!!
– 2 –
PARTS No. MODEL
4-999-021-0π
4-999-021-1π
4-999-021-2π
4-999-021-3π
US
Canadian
AEP
UK
SECTION 1
SERVICING NOTE
TABLE OF CONTENTS
1. SERVICING NOTE .......................................................... 3
2. GENERAL .......................................................................... 6
3. DISASSEMBLY
3-1. Front Panel Assembly ........................................................... 9
3-2. Back Panel Assembly............................................................ 9
3-3. Base (Door, Gear) Assembly .............................................. 10
3-4. Table Assembly ................................................................... 10
3-5. Mechanism Deck ................................................................ 11
3-6. Base Unit ...........................................................................11
4. TEST MODE ..................................................................... 12
5. ADJUSTMENTS
5-1. Mechanical Adjustment ...................................................... 15
5-2. Electrical Block Adjustment ............................................... 21
6. DIAGRAMS
6-1. Circuit Boards Location...................................................... 24
6-2. Block Diagrams
• BD Section........................................................................ 25
• Main Section..................................................................... 27
6-3. Schematic Diagram – BD Section – ................................... 31
6-4. Printed Wiring Board – BD Section – .................................33
6-5. Printed Wiring Board – Main Section –.............................. 35
6-6. Schematic Diagram – Main Section – ................................ 37
6-7. Schematic Diagram – Jack Section –.................................. 39
6-8. Printed Wiring Board – Jack Section – ............................... 41
6-9. Schematic Diagram – Display Section – ............................ 43
6-10. Printed Wiring Board – Display Section – ........................ 45
6-11. Schematic Diagram – Sensor/Motor Section – ................. 47
6-12. Printed Wiring Board – Sensor/Motor Section – .............. 48
6-13. IC Block Diagrams............................................................ 49
6-14. IC Pin Functions................................................................ 51
NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK
OR BASE UNIT
The laser diode in the optical pick-up block may suffer electrostatic
break-down because of the potential difference generated by the
charged electrostatic load, etc. on clothing and the human body.
During repair, pay attention to electrostatic break-down and also
use the procedure in the printed matter which is included in the
repair parts.
The flexible board is easily damaged and should be handled with
care.
NOTES ON LASER DIODE EMISSION CHECK
The laser beam on this model is concentrated so as to be focused on
the disc reflective surface by the objective lens in the optical pickup block. Therefore, when checking the laser diode emission, observe from more than 30 cm away from the objective lens.
The emission check enables continuous checking of the S curve.
LASER DIODE AND FOCUS SEARCH OPERATION
CHECK
Carry out the “S curve check” in “CD section adjustment” and check
that the S curve waveform is output three times.
7. EXPLODED VIEWS
7-1. Case and Back Panel Section.............................................. 56
7-2. Disc Table Section .............................................................. 57
7-3. Front Panel Section ............................................................. 58
7-4. Mechanism Section-1 (CDM-40B)..................................... 59
7-5. Mechanism Section-2 (CDM-40B)..................................... 60
7-6. Mechanism Section-3 (CDM-40B)..................................... 61
7-7. Base Unit Section (KSM-213BKN/M-N)........................... 62
8. ELECTRICAL PARTS LIST ........................................ 63
– 3 –
CD-TEXT TEST DISC
This unit is able to display the TEXT data (character information) written in the CD on its fluorescent indicator tube.
The CD-TEXT TEST DISC (TGCS-313:J-2501-126-A) is used for checking the display.
To check, perform the following procedure.
Checking Method:
1. Turn ON the po wer, set the disc on the disc table with the side labeled as “test disc” as the right side, close the front cover, and chuck the
disc.
2. The following will be displayed on the fluorescent indicator tube. (The display switches each time the TIME/TEXT button is pressed.)
Display : Main Artist Test or CD TEXT TEST DISC (Album Title)
3. Press the ” button and play back the disc.
4. The following will be displayed on the fluorescent indicator tube. (If nothing is displayed, press the TIME/TEXT button.)
Display : 1kHz/0 dB/ L&R
5. Rotate ≠ and ± buttons to switch the track. The text data of each track will be displayed.
For details of the displayed contents for each track, refer to “T able 1 : CD-TEXT TEST DISC TEXT Data Contents” and “Table 2 : CDTEXT TEST DISC Recorded Contents and Display”.
Restrictions in CD-TEXT Display
In this unit, some special characters will not be displayed properly. These will be displa yed as a space or a character resembling it. For details,
refer to “Table 2 : CD-TEXT DISC Recorded Contents and Display”.
Table 1 : CD-TEXT TEST DISC TEXT Data Contents (TRACKS No. 1 to 41:Normal Characters)
TRACK
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
Displayed Contents
1kHz/0dB/L&R
20Hz/0dB/L&R
40Hz/0dB/L&R
100Hz/0dB/L&R
200Hz/0dB/L&R
500Hz/0dB/L&R
1kHz/0dB/L&R
5kHz/0dB/L&R
7kHz/0dB/L&R
10kHz/0dB/L&R
16kHz/0dB/L&R
18kHz/0dB/L&R
20kHz/0dB/L&R
1kHz/0dB/L&R
1kHz/-1dB/L&R
1kHz/-3dB/L&R
1kHz/-6dB/L&R
1kHz/-10dB/L&R
1kHz/-20dB/L&R
1kHz/-60dB/L&R
1kHz/-80dB/L&R
TRACK
No.
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
Displayed Contents
1kHz/-90dB/L&R
Infinity Zero w/o emphasis//L&R
Infinity Zero with emphasis//L&R
400Hz+7kHz(4:1)/0dB/L&R
400Hz+7kHz(4:1)/-10dB/L&R
19kHz+20kHz(1:1)/0dB/L&R
19kHz+20kHz(1:1)/-10dB/L&R
100Hz/0dB/L*
1kHz/0dB/L*
10kHz/0dB/L*
20kHz/0dB/L*
100Hz/0dB/R*
1kHz/0dB/R*
10kHz/0dB/R*
20kHz/0dB/R*
100Hz Squer Wave//L&R
1kHz Squer Wave//L&R
1kHz w/emphasis/-0.37dB/L&R
5kHz w/emphasis/-4.53dB/L&R
16kHz w/emphasis/-9.04dB/L&R
NOTE : The contents of Track No. 1 to 41 are the same as those of the current TEST DISC-their titles are displayed.
– 4 –
Table 2: CD-TEXT TEST DISC Recorded Contents and Display
(In this unit, some special characters cannot be displayed. This is no a fault.)
TRACK
No.
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
to
99
Recorded contents Display
! ” # $%& ´ (21h to 27h)1kHz 0dB L&R
( ) + , – . / (28h to 2Fh)
*
01234567 (30h to 37h)
89 : ;<=>? (38h to 3Fh)
@A B C D E FG (40h to 47h)
H I J K L MNO (48h to 4Fh)
PQRSTUVW (50h to 57h)
X Y Z [ ¥ ] ^ _ (58h to 5Fh)
a b c d e f g (60h to 57h)
′
h i j k l m n o (68h to 6Fh)
p q r s t u v w (70h to 77h)
~
xyz{ I }
(78h to 7Fh)
i¢£¤¥ § (A0h to A7h) 8859-1
¬
≥ C ª
•±23
1
†
º ¿ (B8h to BFh)
–
PR
µ¶ • (B0h to B7h)
′
14123
(A8h to AFh)
4
АБВГДЕЖЗ (C0h to C7h)
ИЙКЛ МНОП (C8h to CFh)
DСТУФХЦ
ШЩЪЫЬY
˙
(D0h to D7h)
Я (D8h to DFh)
абвгдежз (E0h to E7h)
ийклмноп (E8h to FFh)
∂ стуфхц÷ (F0h to F7h)
шщъыьy
ÿ (F8h to FFh)
´
No.66
No.67
to
No.99
N All the same
N All the same
N All the same
N All the same
N All the same
N All the same
N All the same
X Y Z [ \ ] ^ _ (58····
N All the same
N All the same
N All the same
xyz{I}
~ (78····
i¢£¤¥ §(A0····
≥ (A8···· C ª
′
µ • (B0····•±
† ¿ (B8····
1
N All the same
N All the same
N All the same
˙
Φ ÙÚÛÜY
ß (D8····
N All the same
N All the same
∂ ñòóôoö÷(F0····
N All the same
N All the same
N All the same
to
N All the same
is not displayed
¬
PR–are not displayed
23
¶ are not displayed
14123
º are not displayed
4
– 5 –
Front Panel
2
1
SECTION 2
GENERAL
345678
28
27
242526 1920212223
LOCATION OF PARTS AND CONTROLS
1 1/u (power) button
2 STANDBY indicator
3 Display window
4 Front cover
5 MEGA control button and indicator
6 X-FADE button
7 INPUT button
8 DISC/CHARACTOR dial and PUSH ENTER button
9 FADER button
10 NO DELAY button
11 MEMO SEARCH button
12 CHECK button
13 CLEAR button
14 p (stop) button
15 P (pause) button and indicator
16 · (play) button and indicator
17 ≠ AMS ± button
18 § OPEN/CLOSE button
19 TIME/TEXT button
20 REPEAT button
21 PROGRAM button
22 SHUFFLE button
23 CONTINUE button
24 HIT LIST button and indicator
25 GROUP FILE button
26 GROUP 1 to 8 button and indicator
27 KEY BOARD jack
28 TIMER (OFF/PLAY) switch
91011
12 13
1415161718
* AMS is abbreviation for Automatic Music Sensor.
– 6 –
– 7 –
This section is extracted from
instruction manual.
– 8 –
SECTION 3
DISASSEMBLY
Note : Follow the disassembly procedure in the numerical order given.
3-1. FRONT PANEL ASSEMBLY
6
Remove the claw
1
Two screws
(BVTP3x8)
2
Two screws
(BVTP 3x8)
7
Front panel assembly
5
Remove the claw
3-2. BACK PANEL ASSEMBLY
5
Remove the PC board holder
3
Four screws
(BVTT3x6)
1
4
Flat type wire (17 core)
(Main board, CN501)
Connector (CN906)
2
Two screws
(BVTT3X6)
4
Three screws
(BV3X6)
– 9 –
3
Seven screws
(BVTT3X6)
7
Back panel
3-3. BASE (DOOR, GEAR) ASSEMBLY
)
3
Screw (PSW3x6)
6
Door (CD) assembly
8
Three screws
(BVTT3x6)
2
Three screws (BVTT3x6)
MAIN board
4
5
Guide assembly
1
Screw (BVTT3x6)
Connector (CN503
3-4. T ABLE ASSEMBL Y
2
Two screws
(BVTT3x6)
9
Base (Door, Gear) assembly
4
Table assembly
5
Washer
1
Stop ring (E type)
7
Three screws (BVTT3x6)
3
Two holder assemblies
– 10 –
3-5. MECHANISM DECK
d
t
5
Mechanism deck
1
Flat type wire
(23core) (CN502)
Main boar
Jack board
Main board
2
Connector
(CN904)
3
Connector
(CN505)
3-6. BASE UNIT
1
Screw (BVTT3x6)
4
Nine screws
(BVTT3x8)
2
Fulcrum plate (BU Upper) assembly
3
Base uni
– 11 –
SECTION 4
TEST MODE
4-1. DISPLAY CHECK MODE
With the power tur ned off (standby state), press the 1/u button
while pressing the P (pause) button.
All FL segments and grids light up together with the · (play),
P (pause), and STANDBY LEDs.
At the same time, the GROUP LEDs ar e lights up simultaneously .
Note: To exit this mode, press the p (stop) button.
4-2. ADJ MODE
1. Turn ON the power of the unit, set disc to disc table, and perform chucking.
2. Disconnect the power supply plug from the outlet.
3. To set ADJ mode, connect the test point (ADJ) of the MAIN
board to Ground, and connect the power supply plug to the outlet.
The power will turn on automatically, and the first track will be
played.
In this mode, table rotation and loading operations are not performed
because it is taken that the disc has already been chucked.
Note:The same operations are also performed in the follo wing when
the test point (ADJ) is connected to Ground after turning on
the power.
• Direct search (movement of sledding motor) is not performed dur -
ing accessing
• Ignored even when GFS becomes L
• Ignored even when the Q data cannot be read
• Focus gain does not decrease
• Spindle gain does not decrease
• Servo related settings can be set manually and checked (Refer to
ADJ Mode Special Functions Table)
ADJ Mode Special Functions Table
(The buttons shown with ( ) function by using the supplied remote commander only)
Button
CONTINUE
SHUFFLE
PROGRAM
GROUP 1 (1)
GROUP 2 (2)
GROUP 3 (3)
GROUP 4 (4)
GROUP 5 (5)
GROUP 6 (6)
GROUP 7 (7)
GROUP 8 (8)
(9)
(10/0)
CHECK
CLEAR
Servo average display
Displays VC, FE, RF, TE and traverse in hexadecimal
numbers
Focus bias display
Each time this is pressed, the focus bias is switched
between 1 and 2
(1)
Bias actually set Optimum bias Minimum jitter
(2)
U:Upper aliasing bias L:Lower aliasing bias
Auto gain display
Displays focus, tracking, sledding in hexadecimal
numbers
Increases the focus bias in 8 steps.
Sets the focus bias in the middle of aliasing.
Turns off the tracking and sledding servo
Returns the auto gain to the initial value (30)
Turns off the focus servo
Decreases the focus bias in 8 steps.
Re-adjusts the focus bias
Turns on the tracking and sledding servo
Switches the focus servo gain between normal and down
FG. norm: normal, FG. down: down
Sets the focus bias to 0 (no bias)
Next, displays the jitter measured at the focus bias set
S-curve observation mode.
(Exits this mode when the p button is pressed.)
Automatic eccentric measurement
The results of measurement is displayed in µm directly.
Function
4-3. KEY AND DISPLAY CHECK MODE
To set this mode , connect the test point (AFADJ) on the MAIN
board to Ground, and connect the power supply plug to the outlet.
• All FL segments and grids will light up. (All lit check)
When a button is pressed, the types of buttons pressed until then
will be displayed on the left side and the number of the buttons
will be displayed on the right side. However, these will not be
displayed for the following special buttons.
p (stop) button: FL segment check
(Refer to FL Tube Check Patterns)
P (pause) button: FL grid check
(Refer to FL Tube Check Patterns)
The pause LED also lights up simultaneously .
· (play) button:All FL segment and grid will light up.
The play LED also lights up simultaneously.
FL Tube Check Patterns
Segment check
Magnified
Grid check
ABCDE
• When the jog dial is rotated to the right, the GROUP LEDs light
up in the order of 1n2..8n1.
• When the jog dial is rotated to the left, the GR OUP LEDs light up
in the order of 8n7..1n8.
• Abbreviation
FL: Fluorescent Indicator Tube
[ MAIN BOARD ] – Component Side –
CN506
6
1
RV501
DISC SENSOR
ADJUSTMENT
R531
TP1
(ADJ)
TP2
(AFADJ)
R540
IC501
– 12 –
4-4. AGING MODE
1DISC
CD1
DISC
*DISC-40*
2
number of agings
Aging Mode
• Mode which repeatedly changes and plays back discs automatically in the unit.
• It will repeat aging as long as no errors occur.
• If an error occurs during aging, it will stop all servos, motors, etc.
instantaneously, display the error number, and stop operations.
However , the stopping conditions dif fer according to whether the
unit is equipped with the “self-protection function during errors”
described later.
The function serves to maintain the state of the unit when errors
occur.
Sequence of Aging Mode
$
1. Disc change
$
2. Load in
$
3. TOC read
$
4. Access of last track
$
5. 3 second playback
$
6. Access of first track
$
7. 3 second playback
Order of Disc Change
(1 cycle takes 3 minutes)
$
1. No. 40
$
2. No. 80
$
3. No. 120
$
4. No. 160
$
5. No. 200
$
Special Aging Mode Functions
The aging mode is provided with the following con venient functions
• Disc setting mode (*1)
• Selection of presence of protection function during error (*2)
• Count function of aging cycle (*3)
*1 Disc setting mode:
5 discs are set before setting the aging mode. This mode makes
the setting of these discs more easy.
*2 Self protection function during errors:
Function which voluntarily corrects errors which occur during
normal operations by retries.
If this function is not provided, all operations will be stopped
without retiring. It is suitable for checking errors with low reproducibility.
If this function is provided, and errors can be corrected by retries,
aging will be continued without stopping.
*3 Aging cycle count function:
Functions which displays the number of agings carried out on
the Fluorescent indicator tube in numbers. One aging cycle consists of five discs.
$
8. Load out
$
9. FRONT COVER open
$
10. FRONT COVER close
$
– 13 –
Aging Method
1. Turn ON the po wer of the unit. Press the § OPEN/CLOSE and
open the front cover.
2. Change the COMMAND MODE switch (S901) on set to CD1 .
3. Press the AGING START button of the remote commander for
aging mode (J-2501-123-A).
4. When the disc set mode is set, the ( and P LEDs blink.
5. Rotate the DISC/CHARACTER dial. The slits (No. 40, 80,
120, 160, 200) for setting the discs will come forward. Insert the
discs into these slits. Do not set the discs in other slits.
6. Set whether the self-protection function during errors is equipped
with the unit. Press the REPEAT button. If “REPEAT” is displayed on the Fluorescent indicator tube, it means the function
is provided. If “REPEA T” is not displayed, it means the function
is not provided.
Error Display
120 Err01
Disc number Error code
Error code
Err 01
Err 02
Err 03
Err 04
Err 05
Err 06
Err *1
Err *2
Err *3
Err *4
Err *5
Err *6
Err *7
DISC sensor check 1
DISC sensor check 2
Table operation check 1
Table operation check 2
Loading operation check 1
Loading operation check 2
BU related check 1
BU related check 2
BU related check 3
BU related check 4
BU related check 5
BU related check 6
BU related check 7
7. Press the ( button.
8. The ( LED blinks, the aging mode is set, and aging is started.
9. The aging cycle lasts 3 min utes. If errors occur during aging, the
error number will be displayed on the Fluorescent indicator tube.
(Refer to the following table for the details of the errors.)
10. Aging will be repeated as long as no errors occur.
11. After each aging cycle, the number displayed on the Fluorescent
indicator tube will increase.
12. To end aging, press the 1/u button.
ContentsCode number Name
No disc in the specified slit
Disc in other slits
Table motor current over
No table sensor input
Load in timeover
Load out timeover
Access timeover
High speed search NG
Q data read error
BU operation (from focus search to until signal can be read) timeover
GFS monitor error
Focus cannot be imposed by focus search
Auto focus bias adjustment cannot be performed
The * numbers mean the following according to the state of the unit during aging
2 : From chucking to end of TOC read
3 : From end of TOC read to end of last track playback
4 : From end of last track playback to end of first track playback
– 14 –
SECTION 5
ADJUSTMENTS
5-1. MECHANICAL ADJUSTMENT
Perform the following steps before carrying out adjustments.
1. Turn ON the po wer of the unit, set disc to disc table No. 92, and
perform chucking.
2. Turn OFF the power.
3. Remove the case.
4. While pressing the STOP button, turn ON the 1/u button.
The test mode is set.
5. The POWER button LED starts blinking.
(Test mode)
LED
1/u
button STOP button
NOTE 1: The cam will start rotating when the GR OUP 1 or GROUP
5 button is pressed continuously in the test mode.
NOTE 2: If the power cannot be supplied, the cam can be rotated
by rotating the pulley with your finger.
GROUP 1
button
GROUP 5
button
Cam
GROUP 1
button
GROUP 5
button
Pulley
– 15 –
GUIDE (DISC T) ALIGNMENT
Cam
Cam Holder (guide T)
(1) Rotate the cam and adjust to the
position shown in the figure.
(2) Check that the state is as
shown in the figure.
A
B
Guide (disc T)
Disc
Guide (disc T)
Fixed screw
Guide (disc T)
Disc
(3) Loosen the fixed screw by about 60 °.
Holder
(guide T)
Tapering screwdriver
Holder (guide T)
(4) Move the holder (guide T) with a tapering screwdri ver ,
and set the position of the guide (disc T) to A:B=1:1.
– 16 –
HOLDER (DISC A) ALIGNMENT
Cam
(1) Rotate the cam and adjust to the
position shown in the figure.
Cam Holder (disc A)
Thrust
screw
Disc
0 - 1mm
(2) Check that the state is as shown in
Thrust screw
Holder (disc A)
the figure.
Disc
Holder (disc A)
(3) After applying suitable locking compound to the part, rotate the thrust screw until the holder (Disc A) comes to the center of the disc .
– 17 –
SENSOR ALIGNMENT
Perform this adjustment after the “holder (disc A) adjustment”.
If the disc table swings to the left and right just before the disc is
chucked, perform the following adjustment.
Cam
CAUTION:
The LED may not light up in steps (3) and (4) for some
microprocessor versions, and consequently adjustments will not
be possible.
In this case, fix the bracket (sensor) at the mechanical center.
As fine adjustments need to be performed in “Disc Sensor
Adjustment” in Electrical Adjustments, sensor alignment need
not be performed here.
Cam
Lever (stopper)
assembly
(1) Rotate the cam and adjust to the
position shown in the figure.
(2) Check that the lever (stopper) assembly
secures the disc table as shown in the figure.
Lever (stopper) assembly
Tapering screwdriver
Bracket (sensor)
Disc table
Table assembly
Swing
(4) Moving the disc table right and left with a hand after the scre w
is fixed, the table will move by the play of a disc table. If the
LEDs light up alternately, the adjustment will be performed
correctly.
Luminus board
PAUSE buttonPLAY button
Bracket (sensor)
Fixed screw
(3) Loosen the fixed screw by 60° to 90°, and use a tapering screwdriver to adjust the screw as shown in the figure.
Move the bracket (sensor) with the tapering screwdriver little by little, and fix the fixed screw at where the play button's LED (green) is
switched to the pause button's LED (orange) (or its reverse).
– 18 –
PULLY AND DISC CENTER HOLE ALIGNMENT
Cam
Bracket
(BU adjustment)
(1) Rotate the cam and adjust to the
position shown in the figure.
Magnet assembly
(2) Check that the state is as shown
in the figure.
0.5 - 2mm
Disc
Cam Base unit
Disc pulley
Note:The disc should not
be fixed.
Disc hole
Base unit
AB
Holder (disc A)
Fixed screw
Bracket
(BU adjustment)
Magnet assembly
(3) Remove the Magnet assembly.
Tapering screwdriver
Loosen the fixed screw by 60° to 90°, and move and adjust the
bracket (BU adjustment) up and down using a tapering screwdri ver
so that the positions of the disc hole and disc pulley become A=B
or between A:B=2:1 and 1:2.
– 19 –
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