DOWNLOAD Sony CDP-CX55 Service Manual ↓ Size: 1.5 MB | Pages: 52 in PDF or view online for FREE

— 17 —

5

Two screws
(BVTT3x10)

!∞

Connector
TABLE SENSOR
board: CN52

!™

Screw
(BVTT3x10)

1

Screw
(PTPWH2.6x8)

2

Table (50)

3

Two screws
(BVTP3x8)

4

Ring (B)

!¡

CD mechanism deck

7

Connector
DISC SENSOR (S) board: CN53

8

Flat type wire (16 core)
BD board: CN102

6

Screw (BVTT3x10)

9

Flat type wire (9 core)
BD board: CN103

!º

Connector
SW board: CN54

!¢

Connector
TABLE SENSOR board: CN51

!£

Connector
MOTOR board: CN61

!§

CD mechanism base unit

Remove in the arrow direc-
tion while pressing the claw
with a screwdriver, etc.

3

Screw
(BTP2.6x10)

4

Magnet holder

1

Two screws
(BTP2.6x8)

Remove in the arrow direc-
tion while pressing the claw
with a screwdriver, etc.

8

Tension coil spring (F-2)

9

BU holder assy

0

Torsion spring (Holder)

!¡

Base unit

6

Two screws
(PTPWH2.6x8)

5

Two screws

(PTPWH2.6x8)

7

Tension coil
spring (F-1)

2

Reinforcement assy

— 18 —

NOTE:
Adjust the position of the gear
as shown in the figure when
attaching.

9

Slider (Lock)

!º

Slider (Cam)

!£

Slider
(Loading)

4

Cam cover

3

Screw
(BTP2.6x8)

1

Screw
(BTP2.6x8)

2

SW board

!™

Torsion spring
(Loading)

!¡

Disc holder
(A)

!∞

Loading lever ASSY

!¢

Tension coil spring (Lever)

6

Screw
(BTP2.6x8)

7

Cover
(Lever)

5

Screw
(BTP2.6x8)

8

Disc holder
(B)

— 19 —

1. Press the POWER button to turn ON the power, and open the

front cover.

2. Place the CD on the slit, close the front cover, and chuck the the

CD.

3. Press the POWER button to turn OFF the power.
4. Short-circuit the test point (TP302:ADJ) and test point

(TP303:GND) of the main board with a lead wire.

5. Press the POWER button to turn ON the power.

The CD is played back automatically and the ADJ mode is set.

• Prohibits high speed search during accessing
• Ignores even if GFS becomes L

(The buttons shown in the (

) function only when the remote com-

mander provided is used.)

Button

Function

(3)

(8)

CHECK

CLEAR

Tracking servo, sled servo OFF

Tracking servo, sled servo ON

Observation mode during S

Automatic eccentricity measurement (Not used for servicing)

*1

CD1

ALL DISCS

S-JI mode

*2

CD1

ALL DISCS

Sokuteichu -4

DISC

TRACK

MIN

SEC

• Observation mode during S

When this mode is set, the
right will be displayed. *1

• Automatic eccentricity mea-

surement (Not used for ser-
vicing)
When this mode is set, the
right will be displayed.
The Sokuteichu count down
display will be counted
down from 4 to to 1 *2.
After counting down, the
eccentricity value will be
displayed *3.

Sokuteichu count down display

*3

CD1

ALL DISCS

Henshin 026

1. Short-circuit the test point (TP302:ADJ) and test point

(TP301:AFADJ) of the main board with a lead wire.

2. Insert the power plug into the outlet. The whole fluorescent in-

dicator tube lights up.
When the SRAM is faulty, “SRAMNG” will be displayed.

3. When the front cover is opened, the POWER button LED goes

off. Closing the front cover will light it up again.
Pressing the POWER button sets the key check mode.
The POWER button LED also lights up.
All buttons have individual button numbers.
When a button is pressed, the button number is counted up and
displayed.

Eccentricity value

CD1

1 DISC

0

1

Count up display

CLEAR

CHECK

REPEAT

PROGRAM

SEARCH

INPUT

TIME/TEXT

ENTER

±

≠

CONTINUE

SHUFFLE

POWER

X-FADE

NO DELAY

·

P

p

PLUS ONE

MEGA CONTROL

DISC/CHARACTER

0

1

2

3

4

5

6

7

8

9

14

15

16

17

18

All lit (LED lights up)

Partially lit 1 (LED lights up)

Partially lit 2

LED lights up

Partially lit 3 (LED lights up)

Partially lit 4
Each time JOG is rotated, PROGRAM 123 is
displayed on the fluorescent indicator tube, and
1, 2, 3 light up one by one.
Clockwise : PROGRAM 1

n2n3

Counterclockwise : PROGRAM 3

n2n1

Button

Button Number or Display

Displays button number

— 20 —

A B C D E F G

CD1

CD1

2nd

PROGRAM 1

CD1

PROGRAM 1

This mode is set by pressing the POWER button while pressing the
CHECK and PLUS ONE buttons in the power-off (standby) state.

The whole fluorescent indicator tube lights up, and the STANDBY,
MEGA CONTROL, PLUS ONE, 

·, and P LEDs light up.

This mode can be exited by pressing the POWER button.

This mode is set by pressing the POWER button while pressing the
REPEAT and PLUS ONE buttons in the power-off (standby) state.

The power goes off automatically after the SRAM is all-erased and
the BD is opened (loading out state).

[ MAIN BOARD ] — CONDUCTOR SIDE —

IC501

IC201

CN702

CN704

• Mode which repeatedly changes and plays back discs automati-

cally in the unit.

• It will repeat aging as long as no errors occur.
• If an error occurs during aging, it will stop all servos, motors, etc.

instantaneously, display the error number, and stop operations.
However, the stopping conditions differ according to whether the
unit is equipped with the “self-protection function during errors”
described later.
The function serves to maintain the state of the unit when errors
occur.

$

$

$

$

$

$

$

$

$

 (1 cycle takes 3 minutes)

$

$

$

1. No. 51

2. No. 20

3. No. 40

4. No. 30

5. No. 10

6. N0. 40*

$

$

$

$

1. Disc change

2. Load in

3. TOC read

4. Access of last track

5. 3 second playback

6. Access of first track

7. 3 second playback

8. Load out

* DISC No. 40 chucks twice during one cycle.

To differentiate,  the “  2nd  ” on the block indicator of the fluo-
rescent indicator tube will light up during the second chucking.

There are some useful function in the aging mode.
• Disc setting mode*1
• Switching of use/disuse of protection function in errors *2
• Aging cycle count function *3

*1 Disc setting mode:

5 discs are set before setting the aging mode. This mode makes
the setting of these discs more easy.

*2 Switching of use/disuse of protection function in errors:

Function which voluntarily corrects errors which occur during
normal operations by retries.
If this function is not provided, all operations will be stopped
without retiring. It is suitable for checking errors with low re-
producibility.
If this function is provided, and errors can be corrected by re-
tries, aging will be continued without stopping.
(The normal aging should be performed with “be”.)

TP302 (ADJ)

TP303 (GND)

TP301 (AFADJ)

CD1

R505

R504