CDP-CE275/CE375
SERVICE MANUAL
US Model
Canadian Model
Australian Model
Ver 1.1 2001.07
CDP-CE275/CE375
AEP Model
UK Model
E Model
CDP-CE375
Photo: CDP-CE375
Model Name Using Similar Mechanism CDP-CE345
CD Mechanism Type
Base Unit Name
CDM59-5BD27
BU-5BD27
Optical Pick-up Name
PXR-104X
SPECIFICATIONS
Compact disc player
General
Laser
Semiconductor laser ( λ = 780 nm)
Power requirements
120 V AC, 60 Hz
11 W
430 x 110 x 400 mm
(17 x 4 3/8 x 15 3/4 in.)
incl. projecting parts
5 kg (11 lbs 1 oz)
Emission duration : continuous
2 Hz to 20 kHz ± 0.5 dB
More than 93 dB
Power consumption
Dimensions (approx.)
(w/h/d)
Frequency response
Dynamic range
Harmonic distortion
Less than 0.0045%
Mass (approx.)
Outputs
Jack
Maximum
Load
Supplied accessories
type
output level impedance
ANALOG
OUT
DIGITAL
OUT
(OPTICAL)
PHONES
(CDP-CE375
only)
Phono
jacks
2 V
Over 10
Audio cord (2 phono plugs – 2 phono plugs) (1)
Remote commander (remote) (1) (CDP-CE375 only)
R6 (size AA) batteries (2) (CDP-CE375 only)
(at 50 kilohms) kilohms
Optical
output
connector
Stereo
phone
jack
–18 dBm
10 mW
Wave
length:
660 nm
32 ohms
Design and specifications are subject to change without notice.
COMPACT DISC PLAYER
9-873-822-12
2001G0500-1
C 2001.7
Sony Corporation
Home Audio Company
Shinagawa Tec Service Manual Production Group
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CDP-CE275/CE375
Ver 1.1 2001.07
All lit
Buttons and Corresponding Button Numbers
Button
Button Number or Display
ALL1DISCS
PROGRAM
REPEAT 1 SHUFFLE
1
6
2
7
3
8
4
9
5
DISC1
DISC2
DISC3
DISC4
DISC5
12
11
10
9
10
EDIT
TIME
FADE
DISC
TRACK PEAK MIN STEP SEC
11 12 13 14 15
16 17 18 19 20
A
B
8
PLAY MODE
PEAK SEARCH
FADER
20
19
18
17
16
Partial lighting 1
REPEAT
TIME
TRACK
MIN
SEC
H (PLAY)
X (PAUSE)
x (STOP)
EX-CHANGE
DISC SKIP
m
Partial lighting 1
Partial lighting 2
All lit
35
R
r
Light altemately
36
24
ALL1DISCS
M
25
1
2
7
3
8
4
5
6
EDIT
26
DISC
PEAK
STEP
CHECK
27
CLEAR
28
AMS (push)
37
When rotated clockwise: The music calendar
numerals light up in ascending order.
When rotated counterclockwise: The music
calendar numerals light up in descending
order.
Partial lighting 2
AMS (turn)
1
3
5
7
9
11
13
18
15
20
R
r
Light altemately
2
4
6
8
10
12
14
19
16 17
11
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VCeDr 1P.1-C20E012.0775/CE375
AGING MODE
For the aging mode, three modes of all mode, disc table mode, and loading mode are available.
This set has the Aging mode for operation check of the mechanism deck.
• If a failure occurred
The aging operation stops and a faulty status is displayed on the fluorescent indicator tube.
• If no failure occurs
The aging operation continues repeatedly.
Note: Do not use the test disc when performing aging.
Aging will not be performed properly if discs with tracks shorter than 4 seconds are used.
Procedure:
1. Press the [POWER] button and turn ON the power.
2. Set discs on all trays.
(More than two discs if five are not available)
3. All mode:
Press the [CHECK], [PLAY MODE] and x buttons at the same time.
Disc table mode:
Press the [CHECK], [PLAY MODE] and [SKIP] buttons at the same time.
Loading mode:
Press the [CHECK], [PLAY MODE] and [EX-CHANGE] buttons at the same time.
4. Aging starts, and the fluorescent indicator tube will display the following.
5. To exit the mode, press the [POWER] button to turn OFF the power.
Disc table
mode
Loading
mode
Display in
Normal operation
Display in
case of failure
Code No. Status
All mode
0
1
2
3
4
5
6
7
8
9
CLOSE (Tray closed)
a
a
a
a
a
a
a
a
a
a
a
a
A-0
Err 0
Err 1
Err 2
Err 3
Err 4
Err 5
Err 6
Err 7
Err 8
Err 9
TOC reading
a
A-1
Access to last track
A-2
Play of last track (3 sec)
EX OPEN (Tray opened while chucking)
EX SKIP (Disc tray rotated)
EX CLOSE (Tray closed)
Access to first track
Counter display
a
a
A-4
A-5
A-6
A-7
Play of first track (3 sec)
OPEN (tray opened)
Counter display
A-9
a
DISC SKIP (Disc tray rotated,
and next disc was selected)
A
a
a
A-A
Err A
The discs are selectie in the order of DISC1 →DISC2 → DISC3 → DISC4 → DISC5 → DISC1 → .... Empty trays are skipped.
But the order is random in the disc table mode.
MECHANISM DECK CHECK MODE
For the mechanism deck check mode, two modes of disc table mode and loading mode are available.
In the mechanism deck check mode, the disc table turning time and the loading time in each section are measured and displayed.
Procedure:
Disc table mode:
Press the [POWER] switch while pressing H , [A OPEN/CLOSE] and [REPEAT] buttons simultaneously.
Loading mode:
Press the [POWER] switch while pressing H , [ OPEN/CLOSE] and [TIME] buttons simultaneously.
A
Display contents
Mode
Check command
0: Right one turn
Display
r 12.5
Disc table mode
Table turning
time measurement
1: Left one Turn
L 10.2
r 12.5
(
)
2: Measurement end
3: Undefined
4: Star position
Sta – –.–
5: Open → Close
CLo 10.2
6: Close → BU up
7: BU up → EX open
8: EX open → EX close
9: EX close → BU down
A: BU down → Open
FF: Measurement end
UP
0.7
Table mode
EoP 6.2
ECL 10.3
Loading time
measurement
(
)
don
1.2
oPn 9.3
CLo 10.2
12
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CDP-CE275/CE375
Ver 1.1 2001.07
SECTION 5
ELECTRICAL ADJUSTMENTS
Note:
Procedure:
1. CD Block is basically designed to operate without adjustment. There-
fore, check each item in order given.
2. Use PATD-012 disc (4-225-203-01) 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.
1. Set the test disc (PATD-012). Disc chucking operation is
complete, then press the [POWER] button to turn the power
off.
2. Connect an oscilloscope to test point TP (RFDC) and TP (VC)
on the BD board.
3. Connect between test point TP (ADJ) on the MAIN board and
GND by lead wire.
S Curve Check
4. Press the [POWER] button to turn the power on and enter the
ADJ mode, then playback the number two track automatically.
5. Confirm that oscilloscope waveform is clear and check the level
of between RFDC top and VC is correct or not.
Note: A clear RFDC signal waveform means that the shape “◊” can be
clearly distinguished at the center of the waveform.
Connection:
oscilloscope
BD board
TP (FE1)
TP (VC)
+
–
RFDC signal waveform
VOLT/DIV: 200 mV
TIME/DIV: 500 ns
Procedure:
1. Set the test disc (PATD-012). Disc chucking operation is
complete, then press the [POWER] button to turn the power
off.
2. Connect an oscilloscope to test point TP (FE1) and TP (VC)
on the BD board.
level: 1.15 ± 0.35 Vp-p
3. Connect between test point TP (ADJ) on the MAIN board and
GND by lead wire.
4. Press the [POWER] button to turn the power on and enter the
ADJ mode.
VC
Checking Location: BD board
Then playback the number two track automatically, press the
x button to stop the playback.
RFAC Level Check
Connection:
5. Press the [CHECK] button actuate the focus search. (actuate
the focus search when disc table is moving in and out)
6. Check the oscilloscope waveform (S-curve) is symmetrical
between A and B. And confirm peak to peak level within 2 ± 1
Vp-p.
oscilloscope
BD board
TP (RFAC)
TP (VC)
+
–
S-curve waveform
symmetry
Procedure:
1. Set the test disc (PATD-012). Disc chucking operation is
complete, then press the [POWER] button to turn the power
off.
2. Connect an oscilloscope to test point TP (RFAC) and TP (VC)
on the BD board.
A
within 2 ± 1 Vp-p
B
3. Connect between test point TP (ADJ) on the MAIN board and
GND by lead wire.
4. Press the [POWER] button to turn the power on and enter the
ADJ mode, then playback the number two track automatically.
5. Confirm that oscilloscope waveform is clear and check RFAC
signal level is correct or not.
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.
Checking Location: BD board
Note: A clear RFAC signal waveform means that the shape “◊” can be
RFDC Level Check
Connection:
clearly distinguished at the center of the waveform.
RFAC signal waveform
VOLT/DIV: 200 mV
TIME/DIV: 500 ns
oscilloscope
BD board
TP (RFDC)
TP (VC)
+
–
level: 1.35 ± 0.4 Vp-p
Checking Location: BD board
13
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CDP-CE275/CE375
Ver 1.1 2001.07
E-F Balance Check
Checking Location:
Connection:
– BD BOARD (Conductor Side) –
oscilloscope
BD board
TP (TE1)
TP (VC)
+
–
Procedure:
1. Set the test disc (PATD-012). Disc chucking operation is
complete, then press the [POWER] button to turn the power
off.
IC150
2. Connect an oscilloscpe to test point TP (TE1) and TP (VC) on
the BD board.
3. Connect between test point TP (ADJ) on the MAIN board and
GND by lead wire.
TP
(VC)
4. Press the [POWER] button to turn the power on and enter the
ADJ mode, then playback the number two track automatically.
5. Press the [TIME] button. (The tracking servo and the sledding
servo are turned OFF)
IC131
TP
IC101
(FE1)
TP
6. Check the level B of the oscilliscope waveform and the A (DC
voltage) of the center of the Traverse waveform.
Confirm the following :
(TE1)
TP
(RFDC)
TP
(RFAC)
A/B x 100 = less than ± 22%
Traverse Waveform
Center of
the waveform
B
A (DC
0V
voltage)
level: 1.15 ± 0.5 Vp-p
7. Press the [TIME] 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
C (DC
voltage)
0V
Tracking servo
Sled servo
OFF
Tracking servo
Sled servo
ON
Checking Location: BD board
14
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CDP-CE275/CE375
SECTION 6
DIAGRAMS
• Circuit Boards Location
6-1. NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
Note on Schematic Diagram:
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
Note on Printed Wiring Board:
• X : parts extracted from the component side.
• Y : parts extracted from the conductor side.
SENSOR board
and tantalums.
•
: Pattern from the side which enables seeing.
• All resistors are in Ω and 1/4 W or less unless otherwise
(The other layers' patterns are not indicated.)
LOADING MOTOR board
specified.
BD board
f
•
: internal component.
Caution:
• C : panel designation.
Pattern face side: Parts on the pattern face side seen from
(Conductor Side) the pattern face are indicated.
Parts face side:
POWER SW board
JUNCTION board
Note:
Note:
Parts on the parts face side seen from
Les composants identifiés par
une marque 0 sont critiques
pour la sécurité.
Ne les remplacer que par une
pièce portant le numéro
spécifié.
The components identi-
fied by mark 0 or dotted
line with mark 0 are criti-
cal for safety.
Replace only with part
number specified.
(Component Side) the parts face are indicated.
• Indication of transistor
Q
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark : CD PLAY
• Voltages are taken with aVOM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal produc-
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
B
B
C
E
E
These are omitted.
These are omitted.
KEY board
Q
C
MAIN board
• Circled numbers refer to waveforms.
• Signal path.
DISPLAY board
J
: CD PLAY
c
: DIGITAL OUT
• A: B+ Line
• B: B– Line
HEADPHONE board
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CDP-CE275/CE375
Ver 1.1 2001.07
6-3. SCHEMATIC DIAGRAM – BD Board – • See page 24 for Waveforms. • See page 24 for IC Block Diagrams.
TP
(RFAC)
IC BD
TP
(RFDC)
TP
(TE1)
TP
(VC)
TP
(FE1)
TP
(SE1)
IC BD
(Page 21)
The components identified by mark 0 or dotted
line with mark 0 are critical for safety.
Les composants identifiés par une marque 0 sont
critiques pour la sécurité. Ne les remplacer que
Replace only with part number specified.
par une pièce portant le numéro spécifié.
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CDP-CE275/CE375
6-5. SCHEMATIC DIAGRAM – JUNCTION/SENSOR/LOADING MOTOR Boards – • See page 25 for IC Block Diagram.
TO MAIN BOARD
(Page 21)
IC BD
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CDP-CE275/CE375
6-7. SCHEMATIC DIAGRAM – MAIN Board – • See page 24 for Waveform.
(Page 23)
(Page 17)
(Page 23)
(Page 23)
(Page 19)
The components identified by mark 0 or dotted
line with mark 0 are critical for safety.
Replace only with part number specified.
Les composants identifiés par une marque 0 sont
critiques pour la sécurité. Ne les remplacer que
par une pièce portant le numéro spécifié.
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CDP-CE275/CE375
6-9. SCHEMATIC DIAGRAM – PANEL Section –
(Page 21)
(Page 21)
(Page 21)
The components identified by mark 0 or dotted
line with mark 0 are critical for safety.
Replace only with part number specified.
Les composants identifiés par une marque 0 sont
critiques pour la sécurité. Ne les remplacer que
par une pièce portant le numéro spécifié.
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