NOTES ON HANDLING THE OPTICAL PICK-UP
BLOCK 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.
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 pickup block. Therefore, when checking the laser diode emission,
observe from more than 30 cm away from the objective lens.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous radiation
exposure.
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.
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.
6.EXPLODED VIEWS
6-1. Main Section.................................................................... 29
6-2. Front Panel Section ......................................................... 30
6-4. CD Mechanism Section (1) (CDM79C-DVBU51) ......... 32
6-5. CD Mechanism Section (2) (CDM79C-DVBU51) ......... 33
7.ELECTRICAL PARTS LIST................................ 34
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 PUBLISHED BY SONY.
Flexible Circuit Board Repairing
• Keep the temperature of the 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.
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.
2
SECTION 1
tapering driver
1
2
r
SERVICING NOTES
SCD-C2000ES
SAFETY CHECK-OUT
After correcting the original service problem, perform the following
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 leaka ge 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 manufactur ers’ 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 v oltmeter. The “limit” indication
is 0.75 V, so analog meters must have an accurate low-v oltage
scale. The Simpson 250 and Sanwa SH-63Trd are examples
of a passive VOM that is suitable. Nearly all battery operated
digital multimeters that have a 2 V A C range are suitable. (See
Fig. A)
To Exposed Metal
Parts on Set
HOW TO OPEN THE DISC TRAY WHEN POWER
SWITCH TURNS OFF
Insert a tapering driver into the aperture of the unit bottom, and turn
in the direction of arrow.
Use a flat (-) head screwdriver to open the disc tray by manual
operation. (Flat head screwdriver with nominal blade length of
3mm.)
* To close the disc table, turn the driver in the reverse direction.
AC
0.15 µF
1.5 k
Ω
Earth Ground
voltmete
(0.75 V)
Fig. A. Using an AC voltmeter to check AC leakage.
3
SCD-C2000ES
Front Panel
SECTION 2
GENERAL
This section is extracted
from instruction manual.
A POWER swit ch (9, 22)
B DISC 1-5 buttons (10, 15)
Press to select the disc directly.
C Remote sensor (6)
D Display window (11)
E N button (10, 14, 15)
F X button (10)
G x button (10, 16, 22)
H m/M buttons (1 4 , 21 )
I l AMS L dial
Connect the headphones.
During playback of a Multi-chann el Sup er Audi o
CD, the same signal that is output from the
ANALOG 5.1CH OUT FRONT L/R jacks is
output from the PHON ES ja c k.
O Disc tray (9)
P MULTI CHANNEL DECODING indicator
Turns on when you turn on the player, or when the
Multi-channel Super Audio CD is loa ded and
select the m ulti-c hanne l play back area by pr essin g
MULTI/2CH.
Q TIME/TEXT button (12)
Each time you press the button, the playing time of
the track, the remaining time of the disc, or TEXT
information appears in the display.
In name input mode, pr ess to select the char acter
type.
R PLAY MODE button (9, 15)
Press to select the play mode.
S MULTI/2CH button (5, 10)
Press to select the playback area when a disc with
the 2 channel area and the multi-c ha nnel area is
loaded.
T SA-CD/CD button (5, 10)
Each time you press the button while playing back
a hybrid disc, the layer to be played back switches
between the SA-CD la ye r and the CD layer.
U MENU button (9, 10, 13, 17, 1 8, 20, 21)
Press to enter the menu .
Press to exit from th e menu and return to the
normal display.
4
SCD-C2000ES
Rear Panel
A ANALOG 2CH OUT jacks (7)
B ANALOG 5.1CH OUT jacks (6)
C DIGITAL (CD) OUT COAXIAL connector (8)
D DIGITAL (CD) OUT OPTICAL connector (8)
E IR REMOTE IR IN jack
Connect to a component equipped with the IR
output jack.
5.1CH OUT2CH OUT
OPTICALCOAXIAL
SURR
L
L
R
R
CENTER
SUB
WOOFER
FRONT
OUT
ANALOGDIGITAL(CD)IR REMOTE
IR
IN
5
SCD-C2000ES
Remote
CD2
CD1
PLAY MODE
CONTINUE SHUFFLE
NAME
INPUT
TIME/TEXT
DISC
CAPS
PROGRAM
DISPLAY
SA-CD/CD
MODE
MULTI/2CH
SPACE
ABCDEF
123
JKLMNOGHI
456
TUVWXYZPQRS
78
>10ENTER
10/0
REPEATCHECK
AMS
DISC SKIP
–+
9
CLEAR
LEVEL
ADJ
A CONTINUE button (9, 15, 16)
Press to resume Continuous Play from Shuffle Play
or Program Play.
SHUFFLE button (15)
PROGRAM button (15)
B NAME INPUT button (21)
Press to enter the nam e in put mode.
C DISC button (10, 15)
Press to select the disc .
CAPS button (21)
Press to switch be tween capital lett ers (ABC) and
numbers (123) in name input mode.
D Numeric buttons (10, 15, 21 )
E >10 button (10, 15)
F REPEAT button (14)
G CHECK button (16)
Press to turn the displa y information o ff or o n.
N SA-CD/CD button (5, 10)
Each time you press the button while playing back
a hybrid disc, the layer to be played back switches
between the SA-CD la ye r and the CD layer.
O MULTI/2CH button (5, 10)
Press to select the playback area when a disc with
the 2 channel area and the multi-c ha nnel area is
lo aded.
P TIME/TEXT button (12)
Each time you press the button, the playing time of
the track, the remaining time of the disc, or TEXT
information appears in the display.
SPACE button (21)
Press to insert a space in name input mode.
Q ENTER button (9, 10, 13, 15, 17, 19, 2 0, 22)
R CLEAR button (15, 16, 22)
Press to delete a programe d tr a c k n umber.
S LEVEL ADJ button (18)
Press to adjust the output level balance for the
Multi-channel management function.
6
•This set can be disassembled in the order shown below.
•The dotted square with arrow (
) prompts you to move to the next job when all of the works within the dotted square () are
completed.
3-1. DISASSEMBLY FLOW
SET
SCD-C2000ES
SECTION 3
DISASSEMBLY
3-2. UPPER CASE
(Page 8)
3-4.FRONT PANEL SECTION
(Page 9)
3-5.CD MECHANISM DECK
(CDM79C-DVBU51)
(Page 9)
3-7.TABLE ASSY
(Page 10)
3-8.SE-130 BOARD, TD UNIT ASSY
(Page 11)
3-3. LOADING PANEL
(Page 8)
3-6.KEY BOARD, LED BOARD,
DISPLAY BOARD
(Page 10)
3-9.DC MOTOR (M901)
(Page 11)
3-10.PICK-UP UNIT SECTION
(Page 12)
3-11.RF BOARD, PICK-UP UNIT
(Page 12)
7
SCD-C2000ES
s
r
Note: Follow the disassembly procedure in the numerical order given.
3-2. UPPER CASE
1
two screws
(BV/RING)
4
upper case
2
3
two screws
(BV/RING)
three screw
(BV/RING)
3-3. LOADING PANEL
2
loading panel
3
1
tapering drive
8
)
3-4. FRONT PANEL SECTION
)
4
connector
(2p) (CN891)
8
three screws
(+BVTP 3
9
front panel section
×
7
four screws
(+BVTP 3
8)
1
×
5
screw
(+BVTP 2.6
connector
(2p) (CN101)
8)
SCD-C2000ES
×
8)
3
wire (flat type)
(13 core) (CN703
6
screw
2
connector
(3p) (CN881)
(+BVTP 2.6
×
8)
3-5. CD MECHANISM DECK
(CDM79C-DVBU51)
8
9
CD mechanism deck
(CDM79C-DVBU51)
two screws
(+BVTP 3
gear (shaft)
4
7
×
8)
two screws
(+BVTP 3
5
wire (flat type)
(31 core) (CN702
6
connector
(11p) (CN001)
×
8)
2
sub shassis
1
3
Turn the gear (shaft) in the
direction of the arrow.
three screws
(+BVTP 3
×
8)
9
SCD-C2000ES
)
3-6. KEY BOARD, LED BOARD, DISPLAY BOARD
q;
claw
qa
DISPLAY board
9
connector
(2p) (CN804)
5
connector
(2p) (CN814)
8
6
LED board
connector
(3p) (CN805)
2
connector
(3p) (CN813)
7
3
nine screws
(+BVTP 2.6
4
two screws
(+BVTP 2.6
KEY board
×
8)
×
8)
1
four screws
(+BVTP 2.6
×
8
3-7. TABLE ASSY
4
6
plate (guide)
screw
(+BTP 2.6
5
claw
×
8)
3
7
screw
(+BTP 2.6
qa
table assy
1
floating screw
(+PTPWH M2.6)
2
tray
0
flat type wire
(6 core) (CN002)
×
8)
10
plate (guide)
9
8
claw
3-8. SE-130 BOARD, TD UNIT ASSY
4
two screws
(+BTP 2.6 × 8)
6
SE-130 board
1
connector
(CN102)
5
flat type wire
(6 core) (CN101)
0
8
two screws
(+P 3
table assy
qa
TD belt
×
3)
TD unit assy
SCD-C2000ES
7
two screws
(+BTP 2.6 × 8)
9
TD motor assy
3-9. DC MOTOR (M901)
5
connector
(CN004)
2
claw
3
claw
6
DC motor (M901)
4
two screws
(+P 2.6
3
belt (loading)
2
gear (loading A)
×
4)
1
screw
(+PTPWH M2.6)
11
SCD-C2000ES
y
3-10. PICK-UP UNIT SECTION
PRECAUTION DURING GEAR (CHUC)
adjust phases
gear (chuck)
3
screw
(+PTPWH M2.6)
4
gear (chuck)
1
two screws
(+BV B3)
2
chuck ass
gear (loading B)
gear (idoler)
6
two claws
8
pick-up unit section
7
5
3-11. RF BOARD, PICK-UP UNIT
4
(CN003)
2
5
flexible flat cable (31 core)
(CN002)
flexible flat cable (9 core)
claw
7
three step screws (M)
8
three insulators
9
pick-up unit
3
flexible flat cable (24 core)
(CN001)
9
holder (BU) assy
6
RF board
12
1
two screws
(+BTP 2.6
×
10)
SECTION 4
DIAGRAMS
SCD-C2000ES
NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
Note on Printed Wiring Board:
• X : parts extracted from the component side.
• Y : parts extracted from the conductor side.
• W : indicates side identified with part number.
• f: internal component.
•: Pattern from the side which enables seeing.
Caution:
Pattern face side: Parts on the pattern face side seen from
(Side B) the pattern face are indicated.
Parts face side: Parts on the parts face side seen from
(Side A) the parts face are indicated.
• Indication of transistor.
C
Q
B
E
These are omitted.
Note Schematic Diagrams.
• All capacitors are in µF unless otherwise noted. (p: pF)
50 WV or less are not indicated except f or electrolytics and
tantalums.
• All resistors are in Ω and 1/
specified.
• f: internal component.
• C : panel designation.
Note:
The components identified by mark 0 or dotted line with mark 0 are
critical for safety.
Replace only with part
number specified.
• A : B+ Line.
• B : B– Line.
•Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark: SACD PLAY
( ): CD PLAY
•Voltages are taken with a VOM (Input impedance 10 MΩ).
Voltage v ariations ma y be noted due to normal production
tolerances.
•Waveforms are taken with a oscilloscope.
Voltage v ariations ma y be noted due to normal production
tolerances.
• Circled numbers refer to waveforms.
• Signal path.
J: CD
c: CD DIGITAL OUT (OPTICAL)
4
W or less unless otherwise
Note:
Les composants identifiés
par une marque 0 sont critiques pour la sécurité.
Ne les remplacer que par une
piéce portant le numéro
spécifié.