Sony CDP-CE375 Service manual

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Sony CDP-CE375 Service manual | Manualzz

CDP-CE275/CE375

SERVICE MANUAL

Ver 1.1 2001.07

US Model

Canadian Model

Australian Model

CDP-CE275/CE375

AEP Model

UK Model

E Model

CDP-CE375

Photo: CDP-CE375

Model Name Using Similar Mechanism CDP-CE345

CD Mechanism Type CDM59-5BD27

Base Unit Name

Optical Pick-up Name

BU-5BD27

PXR-104X

SPECIFICATIONS

Compact disc player

Laser

Frequency response

Dynamic range

Harmonic distortion

Outputs

ANALOG

OUT

DIGITAL

OUT

(OPTICAL)

PHONES

(CDP-CE375 only)

Semiconductor laser (

λ

= 780 nm)

Emission duration : continuous

2 Hz to 20 kHz

±

0.5 dB

More than 93 dB

Less than 0.0045%

Jack type

Phono jacks

Optical output connector

Stereo phone jack

Maximum Load output level impedance

2 V Over 10

(at 50 kilohms) kilohms

–18 dBm Wave

10 mW length:

660 nm

32 ohms

General

Power requirements

Mass (approx.)

120 V AC, 60 Hz

Power consumption 11 W

Dimensions (approx.) 430 x 110 x 400 mm

(w/h/d) (17 x 4 3/8 x 15 3/4 in.) incl. projecting parts

5 kg (11 lbs 1 oz)

Supplied accessories

Audio cord (2 phono plugs – 2 phono plugs) (1)

Remote commander (remote) (1) (CDP-CE375 only)

R6 (size AA) batteries (2) (CDP-CE375 only)

Design and specifications are subject to change without notice.

9-873-822-12

2001G0500-1

C 2001.7

Sony Corporation

Home Audio Company

Shinagawa Tec Service Manual Production Group

COMPACT DISC PLAYER

CDP-CE275/CE375

Ver 1.1 2001.07

SECTION 4

TEST MODE

Connecting Location:

ADJ MODE

NOTE: This mode cannot be performed without a general remote commander.

1. Chuck the CD first, and then turn OFF the power.

2. Short-circuit the test point TP1 (ADJ) of the MAIN board and ground with a lead wire.

3. Press the

[POWER]

button to turn ON the power.

The CD is playback automatically and the ADJ mode is set.

4. To exit the mode, press the [POWER] button to turn OFF the power.

– MAIN BOARD (Component Side) –

• Prohibits high speed search during accessing

• Ignores even if GFS becomes “L”

ADJ Mode Special Function Table

EDIT

Button

PLAY MODE

Function

Auto gain display

(Focus, Tracking and Sledding)

RFCK

GFS

Error rate display

FLUORESCENT INDICATOR TUBE ALL LIT, AND

KEY CHECK MODE

1. Short-circuit the test TP2 (AFADJ) of the MAIN board and ground with a lead wire.

2. Press the [POWER] button to turn ON the power.

The whole fluorescent indicator tube lights up.

3. All buttons have individual button numbers.

When a button is pressed, the button number is counted up and displayed.

JW66

TP1 (ADJ)

CN301

1 0

Count up display Displays button number

When remote controller signals are received, “RM **” will be displayed.

( ** are the numbers corresponding to the remote controller buttons.)

When using the remote controller, switch the [CD1/2/3] switch to CD1.

4. To exit the mode, press the

[POWER]

button to turn OFF the power.

JW68

TP2 (AFADJ)

10

CDP-CE275/CE375

Ver 1.1 2001.07

Button

DISC1

DISC2

DISC3

DISC4

DISC5

PLAY MODE

PEAK SEARCH

FADER

REPEAT

TIME

H (PLAY)

X (PAUSE) x (STOP)

EX-CHANGE

DISC SKIP m

M

EDIT

CHECK

CLEAR

AMS (push)

Buttons and Corresponding Button Numbers

AMS (turn)

Button Number or Display

8

20

19

18

12

11

10

9

17

16

Partial lighting 1

Partial lighting 2

All lit

35

26

27

28

36

24

25

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.

All lit

REPEAT 1

EDIT

TIME

FADE

A B

ALL1DISCS

PROGRAM

SHUFFLE

DISC TRACK PEAK MIN STEP SEC

1 2 3 4 5

6 7 8 9 10

11 12 13 14 15

16 17 18 19 20

Partial lighting 1

Partial lighting 2

TRACK MIN SEC

R r

Light altemately

ALL1DISCS

DISC PEAK STEP

1 2 3 4 5

6 7 8

1

11

3

7

13

18

9

5

15

20

R r

Light altemately

2

6

12

16 17

8

4

14

19

10

11

CDP-CE275/CE375

Ver 1.1 2001.07

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.

3

4

5

0

1

2

8

9

6

7

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.

Code No.

Status All mode

Disc table mode a

Loading mode a a

A

CLOSE (Tray closed)

TOC reading

Access to last track

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

Play of first track (3 sec)

OPEN (tray opened)

DISC SKIP (Disc tray rotated, and next disc was selected) a a a a a a a a a a a a a a a

Display in

Normal operation

A-0

A-1

A-2

Counter display

A-4

A-5

A-6

A-7

Counter display

A-9

A-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.

Display in case of failure

Err 0

Err 1

Err 2

Err 3

Err 4

Err 5

Err 6

Err 7

Err 8

Err 9

Err A

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 ,

[ OPEN/CLOSE]

and

[REPEAT]

buttons simultaneously.

Loading mode:

Press the [POWER] switch while pressing H , [ OPEN/CLOSE] and [TIME] buttons simultaneously.

Display contents

Mode

Disc table mode

( Table turning

time measurement

)

Table mode

( Loading time

measurement

)

Check command

0: Right one turn

1: Left one Turn

2: Measurement end

3: Undefined

4: Star position

5: Open

Close

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

Display r 12.5

L 10.2

r 12.5

Sta – –.–

CLo 10.2

UP 0.7

EoP 6.2

ECL 10.3

don 1.2

oPn 9.3

CLo 10.2

12

SECTION 5

ELECTRICAL ADJUSTMENTS

Note:

1. CD Block is basically designed to operate without adjustment. Therefore, 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 10M

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.

S Curve Check

Connection: oscilloscope

BD board

TP (FE1)

TP (VC)

+

CDP-CE275/CE375

Ver 1.1 2001.07

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 (RFDC) and TP (VC) on the BD board.

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 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.

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.

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, press the x button to stop the playback.

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.

S-curve waveform symmetry

Checking Location: BD board

RFAC Level Check

Connection:

BD board

TP (RFAC)

TP (VC)

+

– level: 1.15

±

0.35 Vp-p

VC oscilloscope

A

B within 2

±

1 Vp-p

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

RFDC Level Check

Connection: oscilloscope

BD board

TP (RFDC)

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.

2.

Connect an oscilloscope to test point TP (RFAC) and TP (VC) on the BD board.

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: A clear RFAC signal waveform means that the shape “

” can be clearly distinguished at the center of the waveform.

RFAC signal waveform

VOLT/DIV: 200 mV

TIME/DIV: 500 ns level: 1.35

±

0.4 Vp-p

Checking Location: BD board

13

CDP-CE275/CE375

Ver 1.1 2001.07

E-F Balance Check

Connection: 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.

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.

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)

6.

Check the level B of the oscilliscope 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

Center of the waveform

B

0V

A (DC 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

Checking Location:

– BD BOARD (Conductor Side) –

TP

(VC)

IC150

IC131

TP

(TE1)

TP

(FE1)

TP

(RFDC)

IC101

TP

(RFAC)

0V

Tracking servo

Sled servo

OFF

Checking Location: BD board

Tracking servo

Sled servo

ON

C (DC voltage)

14

SECTION 6

DIAGRAMS

6-1.

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.

• : Pattern from the side which enables seeing.

(The other layers' patterns are not indicated.)

Caution:

Pattern face side: Parts on the pattern face side seen from

(Conductor Side) the pattern face are indicated.

Parts face side: Parts on the parts face side seen from

(Component Side) the parts face are indicated.

• Indication of transistor

Q

B C E

Q

B C E

These are omitted.

These are omitted.

Note on Schematic Diagram:

• All capacitors are in µF unless otherwise noted. pF: µµF

50 WV or less are not indicated except for electrolytics and tantalums.

• All resistors are in

and 1 /

4

W or less unless otherwise 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.

Note:

Les composants identifiés par une marque 0 sont critiques pour la sécurité.

Ne les remplacer que par une pièce por tant le numéro spécifié.

• Voltages and waveforms are dc with respect to ground under no-signal conditions.

no mark : CD PLAY

• Voltages are taken with a VOM (Input impedance 10 M

).

Voltage variations may be noted due to normal production tolerances.

• Waveforms are taken with a oscilloscope.

Voltage variations may be noted due to normal production tolerances.

• Circled numbers refer to waveforms .

• Signal path.

J : CD PLAY c : DIGITAL OUT

• A : B+ Line

• B : B– Line

CDP-CE275/CE375

• Circuit Boards Location

LOADING MOTOR board

POWER SW board

SENSOR board

BD board

JUNCTION board

KEY board

DISPLAY board

HEADPHONE board

MAIN board

15 15

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)

TP

(RFDC)

TP

(VC)

TP

(TE1)

TP

(FE1)

TP

(SE1)

IC BD

IC BD

(Page 21)

17 17

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.

6-5.

SCHEMATIC DIAGRAM – JUNCTION/SENSOR/LOADING MOTOR Boards – •

See page 25 for IC Block Diagram.

TO MAIN BOARD

(Page 21)

CDP-CE275/CE375

IC BD

19 19

CDP-CE275/CE375

6-7.

SCHEMATIC DIAGRAM – MAIN Board – •

See page 24 for Waveform.

(Page 23) (Page 17)

(Page 19)

21 21

(Page 23)

(Page 23)

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.

6-9.

SCHEMATIC DIAGRAM – PANEL Section –

(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.

23 23

CDP-CE275/CE375

(Page 21)

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Key Features

  • HiFi CD player
  • CD-R playback CD-RW playback
  • Built-in speaker(s)
  • Headphone connectivity
  • Black

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