DOWNLOAD Sony CDP-C591 / CDP-CE235 / CDP-CE335 / SEN-R2900 Service Manual ↓ Size: 2.41 MB | Pages: 28 in PDF or view online for FREE

— 7 —

Note :

As for the installation of the main gear, refer to “Note for MAIN
GEAR installation” on page 4.

5

 Two screws 

    (PTPWH 2.6 

×

 6)

4

 Two screws 

    (PTPWH 2.6 

×

 6)

7

 Compression spring(BU)

1

 Pull out the tray.

    (Refer to "HOW TO OPEN THE DISC TRAY WHEN
      POWER SWITCH TURNS OFF" on page 4.)

6

 Holder (BU)

8

 Compression spring (BU)

9

 Optical pick-up block assembly

2

 Flat type wire(16 core)

    (BD board, to CN101)

3

 Screw

    (PTPWH 3 

×

 12)

6

 Rotary encoder

4

 Gear (MAIN)

2

 Gear (REV)

8

 Gear (U/D)

0

 Bracket (GEAR)

    assembly

3

 Stopper washer(5)

1

 Stopper washer(5)

7

 Stopper washer(5)

5

 Screws 

    (BVTP 3 

×

 8)

9

 Five screws 

    (BVTP 3 

×

 8)

— 8 —

1

When the main power is turned on while the ADJ terminal is set to
LOW, the CDP-C591/CE235/335 enters the ADJ mode that enables
to implement the servo related checks.

The disk tray is not loaded or rotated.
The fifth program is automatically played back.

The following items are valid even when the main power is turned
on first and the ADJ terminal is then set to LOW.

The high speed search cannot be performed.
The focus servo gain is not decreased.
CLV servo gain is not decreased.
GFS is ignored even if it is set to the LOW.
Q data is ignored even if it cannot be read.
Switching of the monitor terminal is possible.

Every pressing of the FADER key advances the MONITOR
terminal in the following order.
RFCK

nGFCnError rate

When “3” of the remote controller is pressed, the tracking servo
is turned off.
When “8” of the remote controller is pressed, the tracking servo
is turned on.

* The servo related items cannot be checked in the CDP-C591/

CE235/335.

2

When the main power is turned on while the AFADJ terminal is set
to LOW, the CDP-C591/CE235/335 enters the key check and display
check mode in which keys and displays can be checked.

First, all display tubes turn on.
When any key is pressed after display tubes are turned on, the
number of the keys that have been pressed appear on the left
and the key number appears on the right.
(Pushing the JOG key is counted as one of the keys.)
However, the following keys are treated as the special keys
that show the different operations.

STOP

: All display turn-on check

PLAY

: Grid check

PAUSE : Segment check
JOG

: Calendar check

When receiving a signal from remote controller, the display
“ []– ** ” appears.
(Number of asterisks ** changes depending on the pressed
key. For example, ** is 50 when the PLAY key is pressed.)

3

When the main power is turned on while pressing the DISCSKIP
and the PROGRAM keys, the CDP-C591/CE235/335 enters the
default shipment mode in which the default settings when shipped
from the factory are set.

Move the DISC 1 to the front and stop the machine.  When the
message “NODISC” appears, it indicates that the mode has
ended with success.

4

When the OPEN key is pressed while the DISC1 and the CHECK
keys are being pressed with the main power being turned ON, the
CDP-C591/CE235/335 enters the aging mode in which aging is
performed in the following sequence.

Reads TOC

A-1

Accesses the last program

A-2

Plays the last program for 3 seconds

PLAY display appears

EX-CHANGE

A-4

DISCSKIP

A-5

CLOSE

A-6

Accesses the first program

A-7

Playback the first program

PLAY display appears

OPEN

A-9

DISPSKIP

A-A

CLOSE

A-0

When an error occurs during aging, the message “Err–*” appears
and the operation is stopped.
The system does not accept any key operations during aging.

— 9 —

— 10 —

Procedure :
1.

Connect frequency counter to TP (PLCK) with lead wire.

2.

Turned Power switch on.

3.

Put the disc (YEDS-18) in to play the number five track.
Confirm that reading on frequency counter is 4.3218MHz.

[ BD BOARD ] — Conductor Side —

BD board

TP (PLCK)

frequency counter

TP(VC)

TP(RF)

TP(TE)

TP(TE1)

CN102

TP(FE)

TP(PLCK)

TP(GND)

TP(FE1)

TP(AGCCON)

IC101

20

21

40

41

60

61

80

1

Note :

Clear RF signal waveform means that the shape “ 

◊

 ” can be clearly

distinguished at the center of the waveform.

Procedure :
1.

Connect oscilloscope to TP (TE) and TP (VC).

2.

Turned Power switch on.

3.

Load a disc (YEDS-18) and playback the number five track.

4.

Press the  

(  button. (Becomes the 1 track jump mode.)

5.

Confirm that the level B and A (DC voltage) on the oscilloscope
waveform.

Note :

1.

CD Block is basically designed to operate without adjustment.
Therefore, check each item in order given.

2.

Use YEDS-18 disc (3-702-101-01) unless otherwise indicated.

3.

Use an oscilloscope with more than 10M

Ω

 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.

Procedure :
1.

Connect oscilloscope to TP (FE).

2.

Connect between TP (FE1) and TP (VC) by lead wire.

3.

Connect between TP (AGCCON) and TP (GND) by lead wire.

4.

Turn Power switch on.

5.

Load a disc (YEDS-18) and actuate the focus search. (In
consequence of open and close the disc tray, actuate the focus
search)

6.

Confirm that the oscilloscope waveform (S-curve) is
symmetrical between A and B. And confirm peak to peak level
within 4 ±1 Vp-p.

7.

After check, remove the lead wire connected in step 2 and 3.

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.

Procedure :
1.

Connect oscilloscope to TP (RF).

2.

Connect between TP (AGCCON) and TP (GND) by lead wire.

3.

Turned Power switch on.

4.

Load a disc (YEDS-18) and playback.

5.

Confirm that oscilloscope waveform is clear and check RF
signal level is correct or not.

6.

After check, remove the lead wire connected in step 2.

BD board

Oscilloscope

TP(FE)
TP(VC)

symmetry

S-curve waveform

within 4 

±

1Vp-p

A

B

TP(RF)
TP(VC)

BD board

oscilloscope

RF signal waveform

VOLT/DIV : 200mV
TIME/DIV : 500ns

level : 1.45 

±

 0.3Vp-p

TP(TE)
TP(VC)

BD board

oscilloscope

level=1.3

±

0.6Vp-p

symmetry

A (DC voltage)

center of
waveform

B

0V

1 track jump waveform

Specified level: –– 

×

 100=less than 

±

22%

B

A

BD BOARD

SENSOR BOARD

MAIN BOARD

DISPLAY BOARD

KEY BOARD

POWER SW BOARD

LOADING MOTOR BOARD

TABLE MOTOR BOARD

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 

Ω

 and 

1

/

4

 

W or less unless otherwise

specified.

•

%

: indicates tolerance.

•

¢

: internal component.

•

C

: panel designation.

•

U

: B+ Line.

•

V

: B– Line.

• Voltages and waveforms are dc with respect to ground

under no-signal (detuned) conditions.

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

Ω

).

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.

• Circled numbers refer to waveforms.
• Signal path.

J

: CD

c

: CD DIGITAL

• Abbreviation

CND

: Canadian

AED

: North European

AUS

: Aurstrarian

EA

: Saudi Arabia

SP

: Singapore

Note:
The components identi-
fied by mark 

!

 or dotted

line with mark 

!

 are criti-

cal for safety.
Replace only with part
number specified.

Note:
Les composants identifiés par
une marque 

!

 sont critiques

pour la sécurité.
Ne les remplacer que par une
piéce por tant le numéro
spécifié.

— 11 —

— 12 —

• X

: parts extracted from the component side.

•

¢

: internal component.

• b

: Pattern from the side which enables seeing.