Sony CDP-XE800 User manual

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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
MICROFILM
CDP-XE800
COMPACT DISC PLAYER
AEP Model
SERVICE MANUAL

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SAFETY-RELATED COMPONENT WARNING !!
COMPONENTS IDENTIFIED BY MARK !OR DOTTED
LINE WITH MARK !ON THE SCHEMATIC DIAGRAMS
AND INTHE PARTS LIST ARE CRITICALTO SAFE OPERA-
TION. REPLACE THESE COMPONENTS WITH SONY
PARTSWHOSE PART NUMBERS APPEAR AS SHOWN IN
THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY
SONY.
This appliance is classified as a
CLASS 1 LASER product.
The CLASS 1 LASER
PRODUCT MARKING is
located on the rear exterior.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous ra-
diation exposure.
This caution
label is located
inside the unit.
TABLE OF CONTENTS
Section Title Page
SECTION 1. SERVICING NOTE ...................................... 3
SECTION 2. GENERAL ................................................4
SECTION 3. DISASSEMBLY
3-1. Front Panel Assembly ......................................................... 5
SECTION 4.TEST MODE..............................................6
SECTION 5. ELECTRICAL BLOCK CHECKING......8
SECTION 6. DIAGRAMS
6-1. Circuit Boards Location ................................................... 10
6-2. IC Pin Function
• IC801 System Control,
Fluorescent Indicator Tube Drive (CXP82316-060Q) .. 11
6-3. Printed Wiring Board — BD Section — .......................... 13
6-4. Schematic Diagram — BD Section —............................. 15
6-5. Printed Wiring Board — Main Section — ....................... 20
6-6. Schematic Diagram — Main Section — .......................... 23
SECTION 7. EXPLODED VIEWS
7-1. Front Panel Section .......................................................... 27
7-2. Chassis Section................................................................. 28
7-3. CD Mechanism Section (CDM36-14).............................. 29
7-4. Base Unit Section (BU-14)............................................... 30
SECTION 8. ELECTRICAL PARTS LIST .................31
ADVARSEL :USYNLIG LASERSTRÅLING VED ÅBNING NÅR
SIKKERHEDSAFBRYDERE ER UDE AF FUNKTION. UNDGÅ UDSAETTELSE
FOR STRÅLING.
CAUTION :INVISIBLE LASER RADIATION WHEN OPEN AND
INTERLOCKS DEFEATED. AVOID EXPOSURE TO BEAM.
VARO! :AVATTAESSA JA SUOJALUKITUS OHITETTAESSA OLET ALT-
TIINA NÄKYMÄTTÖMÄLLE LASERSÄTEILYLLE. ÄLÄ KATSO SÄTEESEEN.
VARNING :OSYNLIG LASERSTRÅLING NÄR DENNA DEL ÄR ÖPP-
NAD OCH SPÄRREN ÄR URKOPPLAD. BETRAKTA EJ STRÅLEN.
VORSICHT : UNSICHTBARE LASERSTRAHLUNG, WENN
ABDECKUNG GE
Ö FFNET UND SICHEREITSVERRIEGELUNG
ÜBERBRÜCKT. NICHT DEM STRAHL AUSSETZEN.
ADVARSEL :USYNLIG LASERSTRÅLING NÅR DEKSEL ÅPNES OG
SIKKERHEDSLÅS BRYTES. UNNGÅ EKSPONERING FOR STRÅLEN.
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.
http://getMANUAL.com

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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 HANDLINGTHE 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 three times.

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1POWER switch
2PLAY MODE button
3REPEAT button
4FADER button
5TIME button
6Disc tray
7Remote sensor
80/) buttons
9Display window
0CHECK button
!¡ CLEAR button
!™ ENTER button
!£ ≠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
@™ PHONE LEVEL control
@£ PHONES jack
* AMS is the abbreviation for Automatic Music Sensor.
SECTION 2
GENERAL
Identifying the Parts
Front Panel
12345 6 7 8 9
0!¡!™
!£
!¢!∞
!¶ !§ !•
!ª@º
@¡
@™
@£

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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
8 Remove the front panel assembly
with care to claws.
3 Connector
(CN351)
5 Two screws
(BVTP2.6x8)
6 Wire
7 Panel bracket
Claw
4 Connector (CN302)
(Flat type 23 core)
Claw
2 Three screws
(BVTP3x8)

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When the pbutton is pressed, the following will be displayed.
(partial lighting 2)
When the OPEN/CLOSE §button is pressed, all will light up
again.
When the ≠AMS ±knob is turned right, the following
will be displayed. (partial lighting 3)
• Key check
All buttons have corresponding button numbers. When a button is
pressed, the counter will count up and display the button’s num-
ber. However, the counter will only count to “17”. It will not count
for buttons already pressed once, but will display the button’s num-
ber.
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 : JW76) 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)
1
(Partial lighting 3)
(Partial lighting 2)
(Partial lighting 1)
8888
• 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.
• Whenthe TP2(AFADJ)terminal on MAIN boardis set toHIGH
(VDD), emphasis turns on. When set to LOW (GND), it turns
off.
TIME
FADER
REPEAT
PLAY MODE
EDIT/
TIME FADE
PEAK SEARCH
AUTO SPACE
MUSIC SCAN
P
ENTER
CLEAR
CHECK
)
0
OPEN/
CLOSE §
PLAY ·
STOP p
≠AMS ±
32
33
34
35
36
Button Button No.
Displayed Button Button No.
Displayed
24
6810
12 14
16 18 20
00
01
02
03
04
05
06
07
25
Partial lighting 1
Partial lighting 2
Partial lighting 3
All lit
88888888
Â
Display of counting
Â
Display of button number

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4-2. ADJ MODE
The following operations are performed in the ADJ mode, which
is set by connecting the TP1 (ADJ : JW75) terminal to the Ground
and turning on the power.
• During playback, there is no problem even if the GFS is continu-
ously 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 Table of Key Operrations inADJ
Mode.)
4-3. CLV-S MODE
The spindle servo for playback sets into the CLV-S mode when
the TP2 (AFADJ) 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
TP1
(ADJ) JW75
JW76
TP2
(AF ADJ)
IC920
CN301
1
2
3
4
5
6
7
8
10
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
Button Function

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SECTION 5
ELECTRICAL BLOCK CHECKING
Note:
1. CD Block is basically designed to operate without adjustment.
Therefore, check each item in order given.
2. UseYEDS-18 disc (3-702-101-01) unless otherwise indicated.
3. Use an oscilloscope with more than 10MΩimpedance.
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
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. Turned Power switch on.
4. Put disc (YEDS-18) in and turned 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
6. After check, remove the lead wire connected in step 2.
Note : • Try to measure several times to make sure than the ratio of
A : B or B : A is more than 10 : 7.
• Take sweep time as long as possible and light up the
brightness to obtain best waveform.
RF Level Check
Procedure :
1. Connect oscilloscope to test point TP (RF) on BD board.
2. Turned 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.
Note: A clear RF signal waveform means that the shape “◊” can be
clearly distinguished at the center of the waveform.
RF signal waveform
E-F Balance (1Track Jump) Check
(Without remote commander)
Procedure :
1. Connect oscilloscpe to test point TP (TE) on BD board.
2. Turned Power switch 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%
1 track jump waveform
E-F Balance Check (With remote commander)
Procedure :
1. Connect the test point TP1 (ADJ : JW75) on MAIN board to the
ground with a lead wire on main board.
2. Connect oscilloscpe to test point TP (TE) on BD board.
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.)
oscilloscope
BD board
TP (FE)
TP (VC)
symmetry
A
B
within 3 ± 1 Vp-p
BD board
TP (RF)
TP (VC)
oscilloscope
level : 1.3 Vp-p
VOLT/DIV : 200mV
TIME/DIV : 500ns
+0.25
–0.20
oscilloscope
BD board
TP (TE)
TP (VC)
Center of the waveform
0V
B
level : 1.3 ± 0.6 Vp-p symmetry
A (DC voltage)
oscilloscope
BD board
TP (TE)
TP (VC)

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Center of the waveform
B
level : 1.3 ± 0.6 Vp-p
0V
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
8. Disconnect the lead wire of TP1 (ADJ : JW75) connected in step
1.
2. Turned 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 —
IC102
TP (TE) TP (FE) TP (VC)
TP (RF)
[ MAIN BOARD ] — Component Side —
A (DC voltage)
0V
Tracking servo
Sledding servo
OFF
Tracking servo
Sledding servo
ON
C (DC
voltage)
RF PLL Free-run Frequency Check
Procedure :
1. Connect frequency counter to test point (XPLCK) with lead wire.
TP1
(ADJ)
TP2
(AFADJ)
JW75
JW76 IC920
CN302 CN301
J301
IC305
TP (XPLCK)
IC101
TP (FEI)
IC103
frequency counter
BD board
TP (XPLCK)
6. 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%
Traverse waveform

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KEY board
SLED board
DISPLAY board
MAIN board
SPINDLE board
LOADING board
BD board
HEADPHONE board
TRANSFORMER board
SECTION 6
DIAGRAMS
6-1. CIRCUIT BOARDS LOCATION