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SERVICE MANUAL
CD player section
System
Compact Disc digital
audio system
Laser
Semiconductor laser (
= 780 nm)
Emission duration: continuous
Laser output
Less than 44.6
µW*
* This outputis the value measured at a
distance of 200 mm from the objective
lens surface on the Optical Pick-up
Block with 7 mm aperture.
Frequency response
5 to 20,000 Hz
±0.5 dB
Signal-to-noise ratio
More than 96
dB
Wow and flutter
Below measurable limit
MD deck section
System
MiniDisc
digital audio system
Disc
MiniDisc
Laser
Semiconductor laser (
= 780 nm)
Emission duration: continuous
Laser output
Less than 44.6
µW*
* This outputis the value measured at a
distance of 200 mm from the objective
lens surface on the Optical Pick-up
Block with 7 mm aperture.
Laser diode properties
Material: GaAlAs
Revolutions (CLV)
800 rpm to 1,800 rpm
Error correction
Advanced Cross Interleave Reed
Solomon Code (ACIRC)
Sampling frequency
44.1 kHz
Coding
AdaptiveTransform Acoustic Coding
(ATRAC)/ATRAC3
Frequency response
5 to 20,000 Hz
±0.5dB
Signal-to-noise ratio
Over 96
dB during playback
Wow and flutter
Below measurable limit
Inputs
Jack type
Input
impedance
Rated
input
Minimum
input
ANALOG IN
Phono
jacks
47 kilohms
500 mVrms 125 mVrms
DIGITAL
OPTICAL IN
Square
optical
connector
jack
Optical wave
length:
660 nm
----
Outputs
Jack type
Rated output
Load impedance
PHONES
Stereo phone
jack
10 mW
32 ohms
ANALOG
OUT
Phono jacks
2 Vrms
(at 50 kilohms)
Over 10 kilohms
Modulation system
EFM (Eight-to-Fourteen Modulation)
Number of channels
2 stereo channels
COMPACT DISC MINIDISC DECK
US Model
Canadian Model
AEP Model
UK Model
SPECIFICATIONS
MXD-D5C
­ Continued on next page ­
U.S. and foreign patents licensed form Dolby
Laboratories Licensing Corporation.
Model Name Using Similar Mechanism
NEW
CD Mechanism Type
CDM53G-21BD53
Base Unit Name
BU-21BD53
Optical Pick-up Name
OP Assy (A-MAX.2)
Model Name Using Similar Mechanism
NEW
MD Mechanism Type
MDM-7X2A
Optical Pick-up Name
KMS-262A/J1N
CD
Section
MD
Section
Photo: AEP, UK models
Ver. 1.1 2005.03
9-929-516-12
2005C05-1
© 2005.03
Sony Corporation
Audio Group
Published by Sony Engineering Corporation


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2
SELF-DIAGNOSIS FUNCTION
The self-diagnosis function consists of error codes for customers which are displayed automatically when errors occur, and error codes
which 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 Self-Diagnosis 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] button to exit the mode.
1. Press the x (CD), x (MD) and [YES] buttons at the same time.
2. Press the [
AMS
] (MD) knob and x (MD) button to display " <0> To Normal".
3. Turn the [
AMS
] (MD) knob and when " <5> MD Test" is displayed, press the [
AMS
] (MD) knob.
4. Turn the [
AMS
] (MD) knob and when "[Service]" is displayed, press the [YES] button.
5. Turn the [
AMS
] (MD) knob to display "Err Display".
6. Press the [YES] button to sets the error history mode and displays "op rec tm".
7. Select the contents to be displayed or executed using the [
AMS
] (MD) knob.
8. Press the [
AMS
] (MD) knob to display or execute the contents selected.
9. Press the [
AMS
] (MD) knob another time returns to step 6.
10. Press the [MENU/NO] button to display "Err Display" and release the error history mode.
11. To release the test mode, press the I/1 button to display "<5> MD Test".
12. To turn the power OFF, turn the [
AMS
] (MD) knob and when "<8> Initial" displayed, press the [
AMS
] (MD)
knob.
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General
Power requirements
Where purchased
Power requirements
U.S.A. and Canada
120 V AC, 60 Hz
Europe
220 - 230 V AC, 50/60 Hz
Power consumption
25 W (less than 1 W at standby)
Dimensions (approx.) (w/h/d) incl. projecting parts and controls
430
× 120 × 395 mm
Mass (approx.)
6.5 kg
Supplied accessories
Design and specifications are subject to change without
notice.
· Audio connecting cords (2)
· Remote commander (remote) (1)
· Sony R6 (size-AA) batteries (2)
Self-Diagnosis Function
The deck has a self-diagnosis display. This functionshows a three- or five-digit display (a combination of a letter and
figures) and the corresponding message, so you can check the deck's condition.
If such a display appears, check the following table in order to resolve the problem.
Should any problem persist, consult your nearest Sony dealer.
Three-digit display/Message
Cause/Remedy
C11/Protected
The inserted MD is record-protected.
,
Take out the MD, and close the record-protect tab.
C13/Rec Error
The recording was not made properly.
,
Set the deck in a stable place, and repeat the recording procedure.
The inserted MD is dirty(with smudges, fingerprints,etc.), scratched, or not up to
standards.
,
Replace the disc, and repeat the recording procedure.
C14/Toc Error
The deck could not read the TOC of the MD properly.
,
Insert another disc.
,
If possible, erase all tracks on the MD using the AllErase Function.
While recording from a digital component connected through the DIGITAL
OPTICAL IN connector, the digital connecting cable was unpluggedor the digital
component turned off.
,
Connect the cable or turn the digital component back on.
C12/CannotCopy
An attempt was made to play a disc that is not compatible withthis deck (CD-
ROM, MD data disc, etc.).
,
Replace the disc.
C13/Read Error
The deck could not read the TOC of the MD properly.
,
Eject the disc, then insert it again.
C41/Cannot Copy
The digitally dubbed material cannot be recorded digitally.
C71/Din Unlock
A moment's lightingis due to the signals of the digital program being recorded.
This does not affect the recorded material.
E0001/MEMORY NG
There is an error in the internal data that the deck needs in order to operate.
,
Consult your nearest Sony dealer.
E0101/LASER NG
There ia a problem with the optical pick-up.
,
The optical pick-up may have failed. Consult your nearest Sony dealer.
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3
ITEMS OF ERROR HISTORY MODE ITEMS AND CONTENTS
Selecting the Test Mode
Display
Details of History
op rec tm
Cumulative recording time is displayed.
When cumulative recording time is over 1 minute, the hour and minute are displayed as they are.
When it is under 1 minute, "Under 1 min" is displayed.
The displayed time shows how long the laser is in high power state.
It is about one fourth the actual recording time.
op play tm
Cumulative playing time is displayed.
When cumulative playing time is over 1 minute, the hour and minute are displayed as they are.
When it is under 1 minute, "Under 1 min" is displayed.
spdl rp tm
Cumulative spindle motor running time is displayed.
When cumulative spindle motor run time is over 1 minute, the hour and minute are displayed as they are.
When it is under 1 minute, "Under 1 min" is displayed.
retry err
Displays the total number of retries during recording and number of retry errors during play.
Displayed as "rss pss".
"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.
total err
Displays the total number of errors.
Displayed as "total ss".
The number of errors is displayed in hexadecimal digits from 00 to FF.
err history
Displays the 10 latest errors.
Displayed as "0s [email protected]@".
s 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 turning the [
AMS
]
(MD) knob.
retry adrs
Display the past five retry addresses.
Displays "ss ADRS ssss", ss is the history number. ssss is the cluster with the retry error.
Select the error history number using the [
AMS
] knob.
er refresh
Mode to clear the error history and retry address history.
[Operating method]
1) Press [
AMS
] (MD) knob when "er refresh" is displayed.
2) The display will change to "er refresh?", and then press [YES] button.
The operation is over if "Complete!" is displayed.
After this mode was executed, check the following:
· The data have been cleared.
· Perform the recording and playing to check that the mechanism operates normally.
op change
Mode to clear cumulative time of "op rec tm" and "op play tm".
These historical data are used to determine the timing when the optical pick-up is to be replaced. When the
optical pick-up was replaced, perform this operation to clear historical data.
[Operating method]
1) Press [
AMS
] (MD) knob when "op change" is displayed.
2) The display will change to "op change?", and then press [YES] button.
The operation is over if "Complete!" is displayed.
spdl change
Mode to clear cumulative time of "spdl rp tm".
This historical data is used to determine the timing when the spindle motor is to be replaced. When the spindle
motor was replaced, perform this operation to clear historical data.
[Operating method]
1) Press [
AMS
] (MD) knob when "spdl change" is displayed.
2) The display will change to "spdl change?", and then press [YES] button.
The operation is over if "Complete!" is displayed.
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4
TABLE OF CONTENTS
SELF-DIAGNOSIS FUNCTION ..................................... 2
1.
SERVICING NOTES ............................................... 6
2.
GENERAL ................................................................... 16
3.
DISASSEMBLY ......................................................... 17
4.
ASSEMBLY .......................................................... 26
5.
TEST MODE .............................................................. 29
6.
ELECTRICAL ADJUSTMENTS
MD Section ..................................................................... 35
CD Section ...................................................................... 46
7.
DIAGRAMS
7-1. Block Diagram ­ MD SERVO Section ­ ....................... 48
7-2. Block Diagram ­ MAIN Section ­ ................................. 49
7-3. Block Diagram
­ DISPLAY/POWER SUPPLY Section ­ ..................... 50
7-4. Note for Printed Wiring Boards and
Schematic Diagrams ....................................................... 51
7-5. Printed Wiring Board ­ BD (CD) Board ­ ..................... 52
7-6. Schematic Diagram ­ BD (CD) Board ­ ........................ 53
7-7. Schematic Diagram ­ BD (MD) Board (1/2) ­ .............. 54
7-8. Schematic Diagram ­ BD (MD) Board (2/2) ­ .............. 55
7-9. Printed Wiring Board ­ BD (MD) Board ­ .................... 56
7-10. Printed Wiring Board
­ MAIN Board (Component Side) ­ .............................. 58
7-11. Printed Wiring Board
­ MAIN Board (Conductor Side) ­ ................................ 59
7-12. Schematic Diagram ­ MAIN Board (1/4) ­ ................... 60
7-13. Schematic Diagram ­ MAIN Board (2/4) ­ ................... 61
7-14. Schematic Diagram ­ MAIN Board (3/4) ­ ................... 62
7-15. Schematic Diagram ­ MAIN Board (4/4) ­ ................... 63
7-16. Printed Wiring Board
­ AUDIO Board (Component Side) ­ ............................ 64
7-17. Printed Wiring Board
­ AUDIO Board (Conductor Side) ­ .............................. 65
7-18. Schematic Diagram ­ AUDIO Board ­ .......................... 66
7-19. Printed Wiring Boards ­ CDM Section ­ ...................... 68
7-20. Schematic Diagram ­ CDM Section ­ .......................... 69
7-21. Printed Wiring Boards ­ PANEL Section ­ .................. 70
7-22. Schematic Diagram ­ PANEL Section ­ ....................... 71
7-23. Printed Wiring Board ­ LED Board ­ ........................... 72
7-24. Schematic Diagram ­ LED Board ­ .............................. 73
7-25. IC Pin Function Description ........................................... 77
8.
EXPLODED VIEWS ................................................ 89
9.
ELECTRICAL PARTS LIST ............................... 96
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!
LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE 0
SUR LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE
DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ
DE FONCTIONNEMENT. NE REMPLACER CES COM-
POSANTS 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 0 OR DOTTED
LINE WITH MARK 0 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 PUB-
LISHED BY SONY.
Error Code
Details of Error
10
Loading failed
12
Loading switch combination is illegal
20
Head of PTOC could not be read within the
specified time
21
Head of PTOC could be read but its content is
erroneous
22
Access to UTOC could not be made within the
specified time
23
UTOC could be not read within the specified
3time
24
Content of UTOC is erroneous
30
Playing could not start
31
Content of sector is erroneous
40
Cause of retry occurred during normal recording
41
D-RAM overflowed and retry was executed
42
Retry was executed during the writing to TOC
43
S.F editing was interrupted by retry
50
Address could not be read except in access
processing
51
Focusing failed and it is out of control
60
Unlock retry
Table of Error Codes


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5
SAFETY CHECK-OUT
After correcting the original service problem, perform the follow-
ing safety check before releasing the set to the customer:
Check the antenna terminals, metal trim, "metallized" knobs,
screws, and all other exposed metal parts for AC leakage.
Check leakage as described below.
LEAKAGE TEST
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 microamperes.).
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
VOM or battery-operated AC voltmeter. The "limit" indica-
tion is 0.75 V, so analog meters must have an accurate low-
voltage scale. The Simpson 250 and Sanwa SH-63Trd are ex-
amples of a passive VOM that is suitable. Nearly all battery
operated digital multimeters that have a 2 V AC range are
suitable. (See Fig. A)
Fig. A.
Using an AC voltmeter to check AC leakage.
1.5 k
0.15
µF
AC
voltmeter
(0.75 V)
To Exposed Metal
Parts on Set
Earth Ground
ADVARSEL
Eksplosjonsfare ved feilaktig skifte av batteri.
Benytt samme batteritype eller en tilsvarende type
anbefalt av apparatfabrikanten.
Brukte batterier kasseres i henhold til fabrikantens
instruksjoner.
VARNING
Explosionsfara vid felaktigt batteribyte.
Använd samma batterityp eller en likvärdig typ som
rekommenderas av apparattillverkaren.
Kassera använt batteri enligt gällande föreskrifter.
VAROITUS
Paristo voi räjähtää, jos se on virheellisesti asennettu.
Vaihda paristo ainoastaan laitevalmistajan suosittelemaan tyyppiin.
Hävitä käytetty paristo valmistajan ohjeiden mukaisesti.
ADVARSEL!
Lithiumbatteri-Eksplosionsfare ved fejlagtig håndtering.
Udskiftning må kun ske med batteri
af samme fabrikat og type.
Levér det brugte batteri tilbage til leverandøren.
CAUTION
Danger of explosion if battery is incorrectly replaced.
Replace only with the same or equivalent type recommended by
the manufacturer.
Discard used batteries according to the manufacturer's instructions.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous ra-
diation exposure.
Notes on chip component replacement
· Never reuse a disconnected chip component.
· Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
Flexible Circuit Board Repairing
· Keep the temperature of the soldering iron around 270 °C dur-
ing 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.
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.
The following caution label is located
inside of the unit.