Sony CDPXE-900, CDPXE-900-E Service manual
CDP-XE900/XE900E
SERVICE MANUAL
PHOTO : CDP-XE900
Model Name Using Similar Mechanism NEW
CD Mechanism Type CDM36-14
Base Unit Type BU-14
Optical Pick-up Type KSS-213B/S-N
SPECIFICATIONS
AEP Model
CDP-XE900
UK Model
Chinese Model
CDP-XE900E
Compact disc player
Laser Semiconductor laser (λ = 780 nm)
Emission duration: continuous
Laser output Max 44.6 µW*
* This output is the value measured at
a distance of 200 mm from the
objective lens surface on the Optical Pickup block with 7 mm aperture.
Frequency response 2 Hz to 20 kHz ± 0.5 dB
Signal-to-noise ratio More than 113 dB
Dynamic range More the 99 dB
Harmonic distortion Less than 0.0025%
Channel separation More than 105 dB
Outputs
Jack Maximum Load
type output impedance
level
LINE OUT Phono 2 V Over 50 kilohms
jacks (at 50 kilohms)
DIGITAL Optical –18 dBm Wave length : 660 nm
OUT output
(OPTICAL) connector
PHONES Stereo 10 mW 32 ohms
(CDP-XE900) phone
jack
General
Power requirements Except Chinese model :
220 V – 230 V AC, 50/60 Hz
Chinese model : 220V AC50/60Hz
Power consumption 14W
Dimensions (approx.) 430 × 1107 × 295 mm
(w/h/d) (17 × 4 1/4 × 11 5/8 in.) incl. projecting
parts
Mass (approx.) 5.2 kg (8 lbs 13 oz)
Supplied accessories
Audio cord (2 phono plugs–2 phono plugs) (1)
Remote commander (RM-D820) (1)
Sony SUM-3 (NS) batteries (2)
Design and specifications are subject to change without notice.
COMPACT DISC PLAYER
MICROFILM
— 1 —
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous radiation exposure.
TABLE OF CONTENTS
1. SERVICING NOTE ........................................................... 3
The laser component in this product
is capable of emitting radiation
exceeding the limit for Class 1.
(XE900E)
(XE900)
CAUTION
: INVISIBLE LASER RADIATION WHEN OPEN AND
INTERLOCKS DEFEATED. AVOID EXPOSURE TO BEAM.
ADVARSEL
SIKKERHEDSAFBRYDERE ER UDE AF FUNKTION. UNDGÅ UDSAETTELSE
FOR STRÅLING.
VORSICHT
ABDECKUNG GE
ÜBERBRÜCKT.
VARO!
TIINA NÄKYMÄTTÖMÄLLE LASERSÄTEILYLLE. ÄLÄ KATSO SÄTEESEEN.
VARNING
NAD OCH SPÄRREN ÄR URKOPPLAD. BETRAKTA EJ STRÅLEN.
ADVARSEL
SIKKERHEDSLÅS BRYTES. UNNGÅ EKSPONERING FOR STRÅLEN.
: USYNLIG LASERSTRÅLING VED ÅBNING NÅR
: UNSICHTBARE LASERSTRAHLUNG, WENN
Ö
FFNET UND SICHEREITSVERRIEGELUNG
NICHT DEM STRAHL AUSSETZEN.
: AVATTAESSA JA SUOJALUKITUS OHITETTAESSA OLET ALT-
: OSYNLIG LASERSTRÅLING NÄR DENNA DEL ÄR ÖPP-
: USYNLIG LASERSTRÅLING NÅR DEKSEL ÅPNES OG
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.
This caution
label is located
inside the unit.
2. GENERAL ....................................................................4
3. DISASSEMBLY
3-1. Front Panel Assembly ......................................................... 5
4. TEST MODE.................................................................6
5. ELECTRICAL BLOCK CHECKING.........................8
6. DIAGRAMS
6-1. Circuit Boards Location ................................................... 10
6-2. Schematic Diagram — Main Section — .......................... 11
6-3. Printed Wiring Board — Main Section — ....................... 15
6-4. Schematic Diagram — BD Section —............................. 20
6-5. Printed Wiring Board — BD Section — .......................... 23
6-2. IC Pin Function
• IC801 System Control,
Fluorescent Indicator Tube Drive (CXP82316-069Q) .. 26
7. EXPLODED VIEWS
7-1. Case Section ..................................................................... 27
7-2. Chassis Section................................................................. 28
7-3. CD Mechanism Section (CDM36-14).............................. 29
7-4. Base Unit Section (BU-14)............................................... 30
8. ELECTRICAL PARTS LIST ........................................ 31
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 P ARTS 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.
MODEL IDENTIFICATION
— BACK PANEL —
4-983-973-1π: XE900 (AEP, German) model
4-983-973-2π: XE900E (UK) model
4-983-973-3π: XE900E (Chinese) model
— 2 —
SECTION 1
SERVICING NOTE
HOW TO OPEN THE DISC TRAY WHEN POWER SWITCH
TURNS OFF
Insert a screwdriver into the aperture of the unit bottom, and
move it in the direction of arrow.
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 objecti ve 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 OPERA TION CHECK
Carry out the “S curve check” in “CD section adjustment” and check
that the S curve waveform is output two times.
— 3 —
LOCATION OF PARTS AND CONTROLS
Front Panel
SECTION 2
GENERAL
1 POWER switch
2 PLAY MODE button
3 REPEAT button
4 FADER button
5 TIME button
6 Disc tray
7 Remote sensor
8 0/) buttons
9 Display window
0 CHECK button
!¡ CLEAR button
!™ ENTER button
12
@™@£@¡
3
4
@º !ª
5
!•
6
7
8
!¶
!£ ≠ AMS* ± knob
!¢ p (stop) button
!∞ P (pause) button
!§ · (play) button
!¶ § OPEN/CLOSE button
!• MUSIC SCAN button
!ª AUTO SPACE button
@º PEAK SEARCH button
@¡ EDIT/TIME FADE button
@™ PHONES LEVEL control (CDP-XE900)
@£ PHONES jack (CDP-XE900)
* AMS is the abbreviation for Automatic Music Sensor.
0
9
!∞
!§
!¡!™
!£!¢
— 4 —
SECTION 3
DISASSEMBLY
Note : Follow the disassembly procedure in the numerical order given.
3-1. FRONT PANEL ASSEMBLY
1
Push the part A in the direction of arrow to
remove the loading panel upward.
A part
Claws
6
Remove the front panel assembly
with care to claws.
4
Five Screws
(BVTP3x8)
5
Screw (BVTP3x8)
(XE900 only)
Claws
2
Connector
(CN351)
3
Connector (CN302)
(Flat type wire)
— 5 —
SECTION 4
TEST MODE
4-1. AF MODE
The following checks can be performed in the AF mode, which is set
by connecting the TP2 (AFADJ) terminal on MAIN board to the
Ground and turning on the power.
• FL tube check
After all segments light up, when the · button is pressed, the
following will be displayed. (Partial lighting 1)
8 8 8 8
When the p button is pressed, the following will be displayed.
(partial lighting 2)
24
6810
12 14
16 18 20
When the OPEN/CLOSE § button is pressed, all will light up
again.
• Key check
All buttons have corresponding b utton numbers. When a b utton is
pressed, the counter will count up and display the button’s number. How ever , the counter will only count to “17”. It will not count
for buttons already pressed once, but will display the button’s
number.
(Partial lighting 2)
(Partial lighting 1)
Button Button
TIME
FADER
REPEA T
PLAY MODE
EDIT/
TIME FADE
PEAK SEARCH
AUTO SPACE
MUSIC SCAN
P
• Remote commander check
When the · button of the remote commander is pressed, the
“·” lights up. All go off when the other buttons are pressed.
• Audio check
• Initial setting of digital filter and release of mute.
• When the TP2 (AFADJ) terminal on MAIN board is set to HIGH
(VDD), emphasis turns on. When set to LOW (Ground), it turns
off.
Button No.
Displayed
00
01
02
03
04
05
06
07
25
ENTER
CLEAR
CHECK
)
0
OPEN/
CLOSE §
PLAY ·
STOP p
Button No.
Displayed
32
33
34
35
36
All lit
Partial lighting 1
Partial lighting 2
88888888
Â
Display of counting
Display of button number
Â
— 6 —
4-2. ADJ MODE
The following operations are performed in the ADJ mode, which is
set by connecting the TP1 (ADJ) terminal to the Ground and turning
on the power.
• During playback, there is no problem even if the GFS is continuously LOW.
• High speed search is prohibited during access.
• During playback, the gain of focus servo and spindle servo does
not decrease.
• Servo related manual operations and measurement can be performed.
(For details of operations, refer to T able of K ey Operrations in ADJ
Mode.)
4-3. CLV-S MODE
The spindle servo for playback sets into the CLV-S mode when the
TP1 (ADJ) terminal is connected to Ground after turning on the power .
TABLE OF BUTTON OPERATIONS IN ADJ MODE
The jitter value display mode can be set after the all-music remaining
number mode using the TIME button.
The functions of the number buttons are shown in the following table.
FUNCTIONS OF NUMBER BUTTONS
(With the attached remote commander)
[ MAIN BOARD ] — Component Side —
CN302
CN301
TP1 (ADJ)
R362
TP2 (AFADJ)
EB602
Button
1
2
3
4
5
6
7
8
10
Function
Focus bias 8-step up
Middle of focus bias up/down turning point
Tracking servo, sled servo off
Auto gain initialization
Focus servo off
Focus bias 8-step down
Immediate readjustment of focus bias
Tracking servo, sled servo on
Auto focus bias start point
— 7 —
SECTION 5
ELECTRICAL BLOCK CHECKING
Note:
1. CD Block is basically designed to operate without adjustment.
Therefore, check each item in order given.
2. Use YEDS-18 disc (3-702-101-01) unless otherwise indicated.
3. Use an oscilloscope with more than 10MΩ impedance.
4. Clean the object lens by an applicator with neutral detergent when
the signal level is low than specified value with the following
checks.
S Curve Check
oscilloscope
BD board
TP (FE)
TP (VC)
Procedure :
1. Connect oscilloscope to test point TP (FE) on BD board.
2. Connect between test point TP (FEI) and TP (VC) by lead wire.
3. Turn Power switch on.
4. Put disc (YEDS-18) in and turn Power switch on again and actuate the focus search. (actuate the focus search when disc table is
moving in and out.)
5. Check the oscilloscope waveform (S-curve) is symmetrical between A and B. And confirm peak to peak level within 3±1 Vp-p.
S-curve waveform
symmetry
Note: A clear RF signal waveform means that the shape “◊” can be
clearly distinguished at the center of the waveform.
RF signal waveform
VOLT/DIV : 200mV
TIME/DIV : 500ns
level : 1.3 Vp-p
+0.25
–0.20
E-F Balance (1 Track Jump) Check
(Without remote commander)
oscilloscope
BD board
TP (TE)
TP (VC)
Procedure :
1. Connect oscilloscpe to test point TP (TE) on BD board.
2. Turn Power s witch on.
3. Put disc (YEDS-18) in to play the number five track.
4. Press the “P (Pause)” button. (Becomes the 1 track jump mode)
5. Check the level B of the oscilliscope's waveform and the A (DC
voltage) of the center of the Traverse waveform.
Confirm the following :
A/B x 100 = less than ± 22%
A
within 3 ± 1 Vp-p
B
6. After check, remove the lead wire connected in step 2.
Note : • Try to measure several times to make sure than the ra tio of
A : B or B : A is more than 10 : 7.
• Tak e sweep time as long as possible and light up the brightness to obtain best waveform.
RF Level Check
oscilloscope
BD board
TP (RF)
TP (VC)
Procedure :
1. Connect oscilloscope to test point TP (RF) on BD board.
2. Turn Power switch on.
3. Put disc (YEDS-18) in to play the number five track.
4. Confirm that oscilloscope waveform is clear and check RF signal
level is correct or not.
1 track jump waveform
Center of the waveform
B
0V
level : 1.3 ± 0.6 Vp-p
symmetry
A (DC voltage)
E-F Balance (Traverse) Check
(With remote commander)
oscilloscope
BD board
TP (TE)
TP (VC)
Procedure :
1. Connect oscilloscpe to test point TP (TE) on BD board.
2. Connect the test point TP1 (ADJ) on MAIN board to the ground
with a lead wire.
3. Turn the Power switch on to set the ADJ mode.
4. Put disc (YEDS-18) in to play the number five track.
5. Press the “3” button. (The tracking servo and the sledding servo
are turned OFF.)
— 8 —
6. Check the level B of the oscilliscope's wavef orm and the A (DC
voltage) of the center of the Traverse waveform.
Confirm the following :
A/B x 100 = less than ± 22%
Traverse waveform
Center of the waveform
B
RF PLL Free-run Frequency Check
Procedure :
1. Connect frequency counter to test point TP (XPLCK) with lead
wire.
BD board
TP (XPLCK)
frequency counter
0V
A (DC voltage)
level : 1.3 ± 0.6 Vp-p
7. Press the “8” button. (The tracking servo and sledding servo are
turned ON.) Confirm the C (DC voltage) is almost equal to the A
(DC voltage) is step 6.
Traverse waveform
0V
Tracking servo
Sledding servo
OFF
Tracking servo
Sledding servo
ON
C (DC
voltage)
8. Disconnect the lead wire of TP1 (ADJ) connected in step 1.
2. Turn Power switch on.
3. Put the disc (YEDS-18) in to play the number five track.
Confirm that reading on frequency counter is 4.3218MHz.
Adjustment Location :
[ BD BOARD ] — Side A —
TP (XPLCK)
IC101
TP (TE)
TP (FEI)
IC102
IC103
TP (FE)
TP (RF)
TP (VC)
[ MAIN BOARD ] — Component Side —
CN302
CN301
TP1 (ADJ)
R362
TP2 (AFADJ)
EB602
J301
IC305
— 9 —
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