Sony CDP-CX90ES - 200 Disc Cd Changer User manual
— 1 —
Model Name Using Similar Mechanism CDP-CX250
CD Mechanism Type CDM-40
Base Unit Type KSM-213BKN/M-N
Optical Pick-up Type KSS-213B/S-N
SPECIFICATIONS
MICROFILM
COMPACT DISC PLAYER
US Model
Canadian Model
CDP-CX90ES/CX270
AEP Model
CDP-CX270
CDP-CX90ES/CX270
SERVICE MANUAL
(USA, Canadian model)
220V-230V AC, 50Hz (AEP, German model)
PHOTO : CDP-CX90ES
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
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— 2 —
MODEL IDENTIFICATION
— BACK PANEL —
TABLE OF CONTENTS
1. SERVICING NOTE ........................................................... 3
2. GENERAL ....................................................................4
3. DISASSEMBLY
3-1. Front Panel Assembly....................................................... 15
3-2. Back Panel Assembly ....................................................... 15
3-3. Table Assembly ................................................................ 16
3-4. Mechanism Deck .............................................................. 17
3-5. Base Unit .......................................................................... 17
4.TEST MODE...............................................................18
5. ADJUSTMENTS
5-1. Mechanical Adjsument ..................................................... 21
5-2. Electrical Block Checking................................................ 27
6. DIAGRAMS
6-1. Circuit Boards Location ................................................... 31
6-2. IC Pin Function
• IC101 Digital Servo, Digital Signal Processor
(CXD2545Q) ................................................................ 32
• IC401 System Control (MB90677) .............................. 35
• IC407 OSD (MB90095-OEM166)................................ 38
6-3. Block Diagram ................................................................. 39
6-4. Printed Wiring Board — BD, DISP Section — ............... 43
6-5. Schematic Diagram — BD, DISP Section — .................. 47
6-6. Printed Wiring Board — MAIN Section — ..................... 51
6-7. Schematic Diagram — MAIN Section —........................ 55
6-8. IC Block Diagrams ........................................................... 60
7. EXPLODED VIEWS
7-1. Case and Back Panel Section ........................................... 65
7-2. Disc table Section ............................................................. 66
7-3. Front panel Section........................................................... 67
7-4. Mechanism Section-1 (CDM-40) ..................................... 68
7-5. Mechanism Section-2 (CDM-40) ..................................... 69
7-6. Base Unit Section-1 (KSM-213BKN/M-N)..................... 70
7-7. Base Unit Section-2 (KSM-213BKN/M-N)..................... 71
8. ELECTRICAL PARTS LIST ........................................ 72
4-983-366-
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous ra-
diation exposure.
The 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.
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.
US Model : 0
Canadian Model : 1
AEP,German Model : 2
US Model : 3
Canadian Model : 4
CX270 :
CX270 :
CX270 :
CX90ES :
CX90ES :
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TEL 13942296513 QQ 376315150 892498299
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— 3 —
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!!
LESCOMPOSANTS IDENTIFIÉSPAR UNEMARQUE!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.
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.
SAFETY CHECK-OUT
(US model only)
After correcting the original service problem, perform the follow-
ing safety checks before releasing the set to the customer:
Checktheantenna terminals,metal trim,“metallized”knobs, screws,
and all other exposed metal parts forAC 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). Leak-
age 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 aVOM
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 pas-
sive VOM that is suitable. Nearly all battery operated digital
multimeters that have a 2V AC range are suitable. (See Fig. A)
NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK
OR BASE UNIT
The laser diode in the optical pick-up block may suffer electrostatic
breakdown because of the potential difference generated by the
charged electrostatic load, etc. on clothing and the human body.
During repair, pay attention to electrostatic breakdown 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 pick-up
block. Therefore, when checking the laser diode emission, observe
from more than 30 cm away from the objective lens.
LASER DIODE AND FOCUS SEARCH OPERATION CHECK
Carry out the “S curve check” in “CD section adjustment” and check
that the S curve waveform is output repeatedly.
COLD RESET
This mode erases all the data memorized on the user memory of this
unit and sets to the same state as shipment. Take note not to set it
accidentally. To set cold reset, press the POWER button while press-
ing the CLEAR button.
The backup memory of this unit will be saved for about one month.
POSITIONING ON THE OSD (ON SCREEN DISPLAY)
SCREEN
This unit can display disc titles, etc. on the TV screen. The screen
position can be adjusted to correct screen deviations of the TV moni-
tors used. Turn on the power and press the OPEN button to open the
front cover. Then press the TIME/TEXT button next to display the
position of the screen. The position can be adjusted by pressing the
cursor button of the remote control unit supplied.
SECTION 1
SERVICING NOTE
Fig. A. Using an AC voltmeter to check AC leakage.
To Exposed Metal
Parts on Set
0.15µF 1.5k
Ω
AC
voltmeter
(0.75V)
Earth Ground
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— 4 —
1POWER button
2CONTINUE button
3Front panel display
4SHUFFLE button
5PROGRAM button
6REPEAT button
7TIME/TEXT button
8Front cover
9SORT button
!º INPUT button
!¡ PLAYER SELECT button
!™ Remote sensor
!£ JOG dial
!¢ ENTER button
!∞ CHECK button
!§ CLEAR button
!¶ p(stop) button
!• P(pause) button
!ª ·(play) button
@º ≠AMS* ±button
@¡ OPEN button
@™ HIT LIST buttons
@£ X-FADE buttons
@¢ GROUP buttons 1-8
@∞ TIMER switch
@§ Keyboard jack
* AMS is the abbreviation for Automatic Music Sensor.
LOCATION OF PARTS AND CONTROLS
Front Panel
35!™
SECTION 2
GENERAL
!ª@º@£
467 89
0!¡ !£
12 !¢
!∞ !§
!¶
!•
@¡
@™@¢
@∞
@§
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— 15 —
SECTION 3
DISASSEMBLY
3-1. FRONT PANEL ASSEMBLY
6
Screw (BVTT 3x6)
7
Two screws
(BVTT 3x10)
4
Four screws
(BVTT 3x6)
8
Remove the claw
2
Two screws
(BVTP 3x8)
9
Front panel assembly
1
Two screws
(BVTP 3x8)
3-2. BACK PANEL ASSEMBLY
Note Abbreviation
G : German model
9
Remove the PC board holder
3
Connector (CN906)
(AEP, G)
1
Connector (CN905)
(AEP, G)
2
Connector (CN903)
8
Three screws
(BVTT 3x10)
5
Four screws (BVTT 3x6)
7
Remove the claw
5
Flat type wire (23 core)
(Main board, CN403)
4
Two screws (BVTT 3x6)
6
Connector (Main board, CN404)
3
Three screws (BVTT3x6)
0
Back panel
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TEL 13942296513 QQ 376315150 892498299
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— 16 —
3-3.TABLE ASSEMBLY
2
Three screws (BVTT 3x6)
4
Connector (CN308)
Main board
5
Guide assembly
1
Screw (BVTT 3x6)
3
Screw (PSW 3x6)
9
Three screws (BVTT 3x6)
0
Three holder assemblies
6
Stop ring (E type)
!¡
Table assembly
!™
Washer
7
Two screws
(BVTT 3x6)
8
Two holder assemblies
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TEL 13942296513 QQ 376315150 892498299
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— 17 —
3-4. MECHANISM DECK
3-5. BASE UNIT
1
Screw (BVTT 3x6)
1
Flat type wire
(23core) (CN301)
Main board
Jack board
Main board
4
Nine screws (BVTT 3x8)
5
Mechanism deck
2
Connector
(CN304)
3
Connector (CN504)
2
Fulcrum plate
(BU UPPER) assy
3
Base unit
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TEL 13942296513 QQ 376315150 892498299
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— 18 —
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
SECTION 4
TEST MODE
4-1. Display Check Mode
With the power turned off (standby state), press the POWER 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 are lights up simultaneously.
Note: To exit this mode, press the POWER 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 setADJ mode, connect the test point (ADJ) of the MAIN board
to Ground, and connect the power supply plug to the outlet.
Thepower willturn onautomatically, andthe firsttrack willbe 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 following 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)
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: FLgrid check(Refer to FLTubeCheck 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.
Grid check
ABCDE
FLTube Check Patterns
Segment check
• 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 GROUP LEDs light up
in the order of 8n7..1n8.
• The standby LED lights up when the door switch is shut.
• Abbreviation
FL: Fluorescent Indicator Tube
[ MAIN BOARD ] — Component Side —
ADJ Mode Special FunctionsTable
(The buttons shown with ( ) function by using the sup-
plied remote commander only)
Function
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
Automatic eccentric measurement
The results of measurement is displayed in µm directly.
IC401
TP
(AF ADJ)
TP
(GND) IC406
IC407
TP(ADJ)
Magnified
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TEL 13942296513 QQ 376315150 892498299
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— 19 —
4-4. Aging Mode
Aging Mode
• Mode which repeatedly changes and plays back discs automati-
cally 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. How-
ever, the stopping conditions differ according to whether the unit is
equippedwiththe “self-protectionfunction 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
8. Load out
$
$
$
$
$
$
Order of Disc Change
(1 cycle takes 3 minutes)
$
$
$
1. No. 40
2. No. 120
3. No. 80
4. No. 200
5. No. 180
$
$
$
Special Aging Mode Functions
The aging mode is provided with the following convenient 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:
Functionwhichvoluntarilycorrects errorswhichoccur duringnor-
mal operations by retries.
If this function is not provided, all operations will be stopped with-
out retiring. It is suitable for checking errors with low reproduc-
ibility.
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.
1DISC CD1
DISC 2
*DISC-40*
number of agings
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— 20 —
Aging Method
1. Turn ON the power of the unit. Open the front cover.
2. Press the AGING START button of the remote commander for
aging mode (J-2501-123-A).
3. When the disc set mode is set, the (and PLEDs blink.
4. Rotate the JOG 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.
5. 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 pro-
vided. If “REPEAT” is not displayed, it means the function is not
provided.
6. Press the (button.
7. The (LED blinks, the aging mode is set, and aging is started.
8. The aging cycle lasts 3 minutes. 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.)
9. Aging will be repeated as long as no errors occur.
10.After each aging cycle, the number displayed on the Fluorescent
indicator tube will increase.
11.To end aging, press the POWER button
Error Display
120 Err01
Disc number 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
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
ContentsCode number Name
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
Error code
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
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
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This manual suits for next models
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Table of contents
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