Sony HCD-MDX10 Service Manual ▷ View online
– 5 –
4-216-211-0
π AEP, UK, G, CIS
4-216-211-1
π E, SP, MY, HK, AR
4-216-211-2
π US, CND, KR, AUS
MODEL IDENTIFICATION
— BACK PANEL —
— BACK PANEL —
• Abbreviation
CND : Canadian model
G
G
: German model
SP
: Singapore model
MY
: Malaysia model
HK
: Hong Kong model
AR
: Argentine model
KR
: Korea model
AUS : Australian model
Parts No.
PARTS No.
MODEL
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.
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!!
LES COMPOSANTS IDENTIFIÉS PAR 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 PAR SONY.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous ra-
diation exposure.
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
• 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.
Laser component in this product is capable of emitting radiation
exceeding the limit for Class 1.
exceeding the limit for Class 1.
This appliance is classified as
a CLASS 1 LASER product.
The CLASS 1 LASER PROD-
UCT MARKING is located on
the rear exterior.
a CLASS 1 LASER product.
The CLASS 1 LASER PROD-
UCT MARKING is located on
the rear exterior.
This caution
label is located
inside the unit.
label is located
inside the unit.
– 6 –
NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK
OR BASE UNIT
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.
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 pick-
up block. Therefore, when checking the laser diode emission, ob-
serve from more than 30 cm away from the objective lens.
the disc reflective surface by the objective lens in the optical pick-
up block. Therefore, when checking the laser diode emission, ob-
serve from more than 30 cm away from the objective lens.
LASER DIODE AND FOCUS SEARCH OPERATION
CHECK
CHECK
Carry out the “S curve check” in “CD section adjustment” and check
that the S curve waveform is output four times.
that the S curve waveform is output four times.
SAFETY CHECK-OUT
After correcting the original service problem, perform the follow-
ing 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 leakage. Check leakage as
described below.
ing 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 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
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.
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” 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)
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)
Fig. A. Using an AC voltmeter to check AC leakage.
0.15
µ
F
To Exposed Metal
Parts on Set
Parts on Set
1.5k
Ω
AC
voltmeter
(0.75V)
voltmeter
(0.75V)
Earth Ground
– 7 –
TABLE OF CONTENTS
1. SERVICING NOTE
.......................................................... 8
2. GENERAL
........................................................................ 14
3. DISASSEMBLY
3-1. Loading Panel ..................................................................... 16
3-2. MD Mechanism and Front Panel ........................................ 16
3-3. Cassette Lid and Tape Mechanism ...................................... 17
3-4. MD Link, Power SW, CD Panel Boards and
3-2. MD Mechanism and Front Panel ........................................ 16
3-3. Cassette Lid and Tape Mechanism ...................................... 17
3-4. MD Link, Power SW, CD Panel Boards and
Display Board ..................................................................... 17
3-5. Disc Tray ............................................................................. 18
3-6. Slider (CAM) ...................................................................... 18
3-7. Base Unit (MBU-5A) and BD (MD) Board ....................... 19
3-8. SW Board and Loading Motor (M103) .............................. 19
3-6. Slider (CAM) ...................................................................... 18
3-7. Base Unit (MBU-5A) and BD (MD) Board ....................... 19
3-8. SW Board and Loading Motor (M103) .............................. 19
4. SERVICE MODE
............................................................ 20
5. TEST MODE (MD)
......................................................... 22
6. MECHANICAL ADJUSTMENTS
..........................
26
7. ELECTRICAL ADJUSTMENTS
............................... 27
8. DIAGRAMS
8-1. Circuit Boards Location ...................................................... 40
8-2. Block Diagrams
8-2. Block Diagrams
• BD (CD) Section .............................................................. 41
• BD (MD) Section (1) ....................................................... 43
• BD (MD) Section (2) ....................................................... 45
• Main Section .................................................................... 47
• Deck Section .................................................................... 49
• Display Section ................................................................ 51
• Main Power/Sub Power Section ...................................... 53
• BD (MD) Section (1) ....................................................... 43
• BD (MD) Section (2) ....................................................... 45
• Main Section .................................................................... 47
• Deck Section .................................................................... 49
• Display Section ................................................................ 51
• Main Power/Sub Power Section ...................................... 53
8-3. Printed Wiring Board – BD (CD) Section – ....................... 57
8-4. Schematic Diagram – BD (CD) Section – .......................... 59
8-5. Printed Wiring Board – BD (MD) Section – ...................... 61
8-6. Schematic Diagram – BD (MD) (1/2) Section – ................ 63
8-7. Schematic Diagram – BD (MD) (2/2) Section – ................ 65
8-8. Schematic Diagram – Main (1/4) Section – ........................ 67
8-9. Schematic Diagram – Main (2/4) Section – ........................ 69
8-10. Schematic Diagram – Main (3/4) Section – ..................... 71
8-11. Schematic Diagram – Main (4/4) Section – ..................... 73
8-12. Printed Wiring Board – Main Section – ........................... 75
8-13. Printed Wiring Board – Deck Section – ........................... 77
8-14. Schematic Diagram – Deck Section – .............................. 79
8-15. Printed Wiring Board – Leaf SW Section – ..................... 81
8-16. Schematic Diagram – Leaf SW Section – ........................ 81
8-17. Schematic Diagram – Display (1/2) Section – ................. 83
8-18. Schematic Diagram – Display (2/2) Section – ................. 85
8-19. Printed Wiring Board – Display Section – ....................... 87
8-20. Printed Wiring Board – MD Digital Section – ................. 89
8-21. Schematic Diagram – MD Digital (1/2) Section – ........... 91
8-22. PSchematic Diagram – MD Digital (2/2) Section – ......... 93
8-23. Schematic Diagram – BD Switch Section – ..................... 95
8-24. Printed Wiring Board – BD Switch Section – .................. 96
8-25. Printed Wiring Board – CD Motor Section – ................... 97
8-26. Schematic Diagram – CD Motor Section – ...................... 99
8-27. Printed Wiring Board – MD Link Section – ................... 101
8-28. Schematic Diagram – MD Link Section – ..................... 103
8-29. Schematic Diagram – Power Section – .......................... 105
8-30. Printed Wiring Board – Power Section – ....................... 107
8-31. IC Block Diagrams ......................................................... 109
8-32. IC Pin Functions ............................................................. 112
8-4. Schematic Diagram – BD (CD) Section – .......................... 59
8-5. Printed Wiring Board – BD (MD) Section – ...................... 61
8-6. Schematic Diagram – BD (MD) (1/2) Section – ................ 63
8-7. Schematic Diagram – BD (MD) (2/2) Section – ................ 65
8-8. Schematic Diagram – Main (1/4) Section – ........................ 67
8-9. Schematic Diagram – Main (2/4) Section – ........................ 69
8-10. Schematic Diagram – Main (3/4) Section – ..................... 71
8-11. Schematic Diagram – Main (4/4) Section – ..................... 73
8-12. Printed Wiring Board – Main Section – ........................... 75
8-13. Printed Wiring Board – Deck Section – ........................... 77
8-14. Schematic Diagram – Deck Section – .............................. 79
8-15. Printed Wiring Board – Leaf SW Section – ..................... 81
8-16. Schematic Diagram – Leaf SW Section – ........................ 81
8-17. Schematic Diagram – Display (1/2) Section – ................. 83
8-18. Schematic Diagram – Display (2/2) Section – ................. 85
8-19. Printed Wiring Board – Display Section – ....................... 87
8-20. Printed Wiring Board – MD Digital Section – ................. 89
8-21. Schematic Diagram – MD Digital (1/2) Section – ........... 91
8-22. PSchematic Diagram – MD Digital (2/2) Section – ......... 93
8-23. Schematic Diagram – BD Switch Section – ..................... 95
8-24. Printed Wiring Board – BD Switch Section – .................. 96
8-25. Printed Wiring Board – CD Motor Section – ................... 97
8-26. Schematic Diagram – CD Motor Section – ...................... 99
8-27. Printed Wiring Board – MD Link Section – ................... 101
8-28. Schematic Diagram – MD Link Section – ..................... 103
8-29. Schematic Diagram – Power Section – .......................... 105
8-30. Printed Wiring Board – Power Section – ....................... 107
8-31. IC Block Diagrams ......................................................... 109
8-32. IC Pin Functions ............................................................. 112
9. EXPLODED VIEWS
9-1. Case Section ...................................................................... 119
9-2. Chassis Section ................................................................. 120
9-3. Front Panel Section ........................................................... 121
9-4. CD Mechanism Deck Section-1 (CDM38LH-5BD32L) .. 122
9-5. CD Mechanism Deck Section-2 (CDM38LH-5BD32L) .. 123
9-6. Base Unit Section (BU-5BD32L) ..................................... 124
9-7. TC Mechanism Section-1 (TCM230AWR2/230PWR2) .. 125
9-8. TC Mechanism Section-2 (TCM230AWR2/230PWR2) .. 126
9-9. MD Mechanism Section-1 (MDM-5A) ............................ 127
9-10. MD Mechanism Section-2 (MDM-5A) .......................... 128
9-2. Chassis Section ................................................................. 120
9-3. Front Panel Section ........................................................... 121
9-4. CD Mechanism Deck Section-1 (CDM38LH-5BD32L) .. 122
9-5. CD Mechanism Deck Section-2 (CDM38LH-5BD32L) .. 123
9-6. Base Unit Section (BU-5BD32L) ..................................... 124
9-7. TC Mechanism Section-1 (TCM230AWR2/230PWR2) .. 125
9-8. TC Mechanism Section-2 (TCM230AWR2/230PWR2) .. 126
9-9. MD Mechanism Section-1 (MDM-5A) ............................ 127
9-10. MD Mechanism Section-2 (MDM-5A) .......................... 128
10. ELECTRICAL PARTS LIST
...............................
129
– 8 –
CD-TEXT
This unit is provided with a simple CD-TEXT display function.
The CD-TEXT contents of 50 tracks are displayed on the fluorescent display tube.
Since the function is simple, some special characters may not be displayed, or may be displayed as other characters.
The CD-TEXT contents of 50 tracks are displayed on the fluorescent display tube.
Since the function is simple, some special characters may not be displayed, or may be displayed as other characters.
SECTION 1
SERVICING NOTE
HOW TO OPEN THE DISC TRAY WHEN POWER SWITCH
TURNS OFF
TURNS OFF
NOTE FOR INSTALLATION (ROTARY ENCODER)
3
Pull-out the disc tray.
1
Remove the Case.
2
Turn the cam to the direction
of arrow.
BU cam
Groove
Section A
Note:When attaching the Base unit, Insert the
section A into the groove of BU cam.
section A into the groove of BU cam.
Note:When attaching the BU cam,
engage the Rotary encoder
switch as shown in the figure.
engage the Rotary encoder
switch as shown in the figure.
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