Sony ZSD-10 Service manual

ZS-D10

(US model)

AUDIO POWER SPECIFICATIONS

POWER OUTPUT AND TOTAL
HARMONIC DISTORTION
With 6-ohm loads, both channels driven
from 1 000 - 10 000 Hz; rated 3.5 W per
channel-minimum RMS power, with no
more than 10 % total harmonic distortion
in AC operation.

Other specifications

CD player section

System

Compact disc digital audio system

Laser diode properties

Material: GaAlAs
Wave length: 780 nm
Emission duration: Continuous
Laser output: Less than 44.6 µW
(This output is the value measured at a distance
of about 200 mm from the objective lens surface

on the optical pick-up block with 7 mm
aperture.)

Spindle speed

200 r/min (rpm) to 500 r/min (rpm)
(CLV)

Number of channels

2

Frequency response

20 - 20 000 Hz +1/–2 dB

Wow and flutter

Below measurable limit

Radio section

Frequency range

FM: 87.5 - 108 MHz
US, CND models:
AM:

530

530 - 1610 kHz (10 kHz step)

- 1 710 kHz

AEP, UK, IT, EE models:

Antennas

FM: Telescopic antenna
AM/MW/LW: Built-in ferrite bar antenna

General

Speaker

Full range: 8 cm (3 1⁄

4

in.) dia., 6 Ω, cone type

(2)

Input

LINE IN jack (stereo minijack):
Minimum input level 330 mV

Outputs

Headphones jack (stereo minijack):
For 16 - 68 Ω impedance headphones
OPTICAL DIGITAL OUT (CD) (optical output
connector):
Wavelength 630 - 690 nm

Power

Maximum power output (AEP, UK, IT, EE models)

output (US, CND models)

4

11 W

W + 4 W (at 6 Ω, 10% harmonic

distortion)

Power requirements

For Personal Audio System:
DC IN 10V jack accepts: Supplied AC power
adaptor for use with: 120V AC, 60 Hz (US, CND models)

For

230 V AC 50 Hz (AEP, UK, IT, EE, models)

remote control:

3 V DC, 2 size AAA (R03) batteries

Dimensions

Approx. 530 × 195 × 127 mm (w/h/d)
(20 7⁄8 × 7 3⁄4 × 5 inches) (incl. projecting parts)

Mass

Approx. 2.5 kg (5 lb. 8 oz)

Supplied accessory

AC power adaptor (1)
Remote control (1)

Design

• Abbreviation
CND: Canadian model
EE : East European model
IT : Italian model

and specifications are subject to change

without notice.

MW: 531 - 1611 kHz (9 kHz step)

LW: 153 - 279 kHz

SERVICE MANUAL

Ver 1.0 2003.03

SPECIFICATIONS

US Model

Canadian Model

AEP Model

UK Model

Model Name Using Similar Mechanism ZS-X3CP
CD Mechanism Type KSM-900AAA
Optical Pick-up Name KSS-900A

9-877-106-01 Sony Corporation

2003C0500-1 Personal Audio Company
C 2003.03 Published by Sony Engineering Corporation

PERSONAL AUDIO SYSTEM

ZS-D10

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.

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.

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 leakage 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. Follo w the manufacturers’ instructions to use these
instruments.

2. A battery-operated AC milliammeter. T he 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 voltmeter. The “limit” indica­tion is 0.75 V, so analog meters must have an accurate low­voltage scale. The Simpson 250 and Sanwa SH-63Trd are e x­amples 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)

CAUTION

Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous ra­diation exposure.

UNLEADED SOLDER

Boards requiring use of unleaded solder are printed with the lead­free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with

the lead free mark due to their particular size)

: LEAD FREE MARK

Unleaded solder has the following characteristics.

• Unleaded solder melts at a temperature about 40 ˚C higher than
ordinary solder.
Ordinary soldering irons can be used but the iron tip has to be
applied to the solder joint for a slightly longer time.
Soldering irons using a temperature regulator should be set to
about 350 ˚C.
Caution: The printed pattern (copper foil) may peel away if the

heated tip is applied for too long, so be careful!

• Strong viscosity
Unleaded solder is more viscou-s (sticky, less prone to flow)
than ordinary solder so use caution not to let solder bridges oc­cur such as on IC pins, etc.

• Usable with ordinary solder
It is best to use only unleaded solder but unleaded solder may
also be added to ordinary solder.

On power sources

• For AC operation, use the supplied AC

power adaptor; do not use any other type.

Polarity of the plug

To Exposed Metal
Parts on Set

AC

1.5 k

0.15 µF

Fig. A. Using an AC voltmeter to check AC leakage.

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 MANU AL OR IN SUPPLEMENTS PUB­LISHED BY SONY.

Ω

Earth Ground

voltmeter
(0.75 V)

• The player is not disconnected from the

AC power source (mains) as long as it is
connected to the wall outlet, even if the
player itself has been turned off.

• Unplug the player from the wall outlet

when it is not be used for an extended
period of time.

• When the batteries are not to be used,

remove them to avoid damage that can be
caused by battery leakage or corrosion.

• The nameplate indicating operating

voltage, etc. is located at the rear.

About CD-Rs/CD-RWs

This player can play CD-Rs/CD-RWs
recorded in the CD-DA format*, but
playback capability may vary depending on
the quality of the disc and the condition of
the recording device.

* CD-DA is the abbreviation for Compact

Disc Digital Audio. It is a recording
standard used for Audio CDs.

ATTENTION AU COMPOSANT AYANT RAPPORT

À LA SÉCURITÉ!

LES COMPOSANTS IDENTIFIÉS P AR UNE MARQUE 0
SUR LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE
DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ
DE FONCTIONNEMENT. NE REMPLACER CES COM­POSANTS QUE PAR DES PIÈCES SONY DONT LES
NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.

2

S895

TABLE OF CONTENTS

ZS-D10

SECTION 1

SERVICING NOTES

1. SERVICING NOTES.............................................. 3

2. GENERAL .................................................................. 4

3. DISASSEMBLY

3-1. Disassembly Flow ........................................................... 5

3-2. Net Sub Assy ................................................................... 6

3-3. Cover (CD) Assy ............................................................. 6

3-4. LCD Assy ........................................................................ 7

3-5. Optical Block (KSM-900AAA), RELAY Board ............ 7

3-6. Optical Pick-up (KSS-900A) .......................................... 8

3-7. Cabinet (Rear) Assy ........................................................ 8

3-8. Speaker (8cm) (Lch/Rch)................................................ 9

3-9. TUNER Board ................................................................. 10

3-10. Chassis Section ............................................................... 10

3-11. DOOR SW Board, MAIN Board.................................... 11

4. ASSEMBLY

4-1. Assembly Flow................................................................ 12

4-2. CD Lid Assy, Spring (T)................................................. 13

4-3. Cover (CD) Sub Assy, Spring (U) and Collar ................ 13

4-4. How to install the CD lid assy ........................................ 14

4-5. Gear ................................................................................. 15

4-6. Damper ............................................................................ 15

5. ELECTRICAL ADJUSTMENTS

Tuner Section ................................................................. 16

CD Section ..................................................................... 17

6. DIAGRAMS

6-1. Block Diagram – CD Section – .................................... 18

6-2. Block Diagram – TUNER Section – ............................ 19

6-3. Block Diagram – MAIN Section – ............................... 20

6-4. Note for Printed Wiring Boards and

Schematic Diagrams ....................................................... 21

6-5. Printed Wiring Boards – CD Section – ........................ 22

6-6. Schematic Diagram – CD Section – ............................. 23

6-7. Printed Wiring Board

– TUNER Section (US, Canadian Models) –................ 24

6-8. Schematic Diagram

– TUNER Section (US, Canadian Models) –................ 25

6-9. Printed Wiring Board – TUNER Section

(AEP, UK, Italian, East European Models) –................ 26

6-10. Schematic Diagram – TUNER Section

(AEP, UK, Italian, East European Models) –................ 27

6-11. Schematic Diagram – CONTROL/PANEL Section – .. 28
6-12. Schematic Diagram

– AUDIO/PO WER SUPPL Y Section – ......................... 29

6-13. Printed Wiring Board – MAIN Section – ..................... 30

6-14. Printed Wiring Boards – PANEL Section – ................. 31

6-15. Printed Wiring Boards

– AUDIO/PO WER SUPPL Y Section – ......................... 32

6-16. IC Pin Function Description .......................................... 37

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
pick-up block. Therefore, when checking the laser diode emis­sion, observe from more than 30 cm away from the objective lens.

LASER DIODE AND FOCUS SEARCH OPERATION
CHECK

During normal operation of the equipment, emission of the laser
diode is prohibited unless the lid is closed while turning ON the
S895. (push switch type)
The following checking method for the laser diode is operable.

• Method (In the normal operation)
Emission of the laser diode is visually checked.

1. Open the lid.

2. Push the S895 as shown in Fig.1.

3. Check the object lens for confirming normal emission of the

laser diode. If not emitting, there is a trouble in the automatic
power control circuit or the optical pick-up.
In this operation, the object lens will move up and down 2
times along for the focus search.

7. EXPLODED VIEWS

7-1. Net Sub Assy Section...................................................... 39

7-2. Cover (CD) Section......................................................... 40

7-3. Cabinet (Rear) Section .................................................... 41

7-4. Cabinet (Front) Section-1 ............................................... 42

7-5. Cabinet (Front) Section-2 ............................................... 43

7-6. Cabinet (Front) Section-3 ............................................... 44

7-7. Cabinet (Front) Section-4 ............................................... 45

7-8. Cabinet (Front) Section-5 ............................................... 46

7-9 Optical Pick-up Section (KSM-900AAA) ..................... 47

8. ELECTRICAL PARTS LIST .............................. 48

Fig.1 Method to push the S895

3

ZS-D10

Location of controls

POWER
(US, CND models)
OPERATE
(AEP, UK, IT, EE models)

OPERATION indicator

u*

., >

PRESET –, +

x

RADIO
BAND
AUTO PRESET

TUNE –, +

MODE

SECTION 2

GENERAL

MEMORY
DISPLAY
ENTER

MEGA BASS

VOLUME –, +*

Remote Control

POWER

(US, CND models)

(AEP, UK, IT, EE models)

OPERATE

FUNCTION

This section is extracted from
instruction manual.

BAND

Display

SLEEP

LINE

OPEN

i

OPTICAL DIGITAL OUT (CD)

Remote sensor

LINE IN

Loading a CD

With the labeled side facing you

Display

C D

Total track number

To turn on/off the power

Press POWER. (US, CND models)
Press OPERATE. (AEP, UK, IT, EE models)

To adjust the volume

Press VOLUME +, – (VOL +, – on the remote).

To listen through headphones

Connect the headphones to the i (headphones) jack.

To turn off the blue light of the CD compartment lid

When the player is turned on, the blue light of the CD compartment lid lights. To turn the light
off, press and hold MODE for about 4 seconds.

To turn the light on again, press and hold MODE for about 4 seconds.

Total playing time

Programmed track

• Abbreviation
CND: Canadian model
EE : East European model
IT : Italian model

u

x

*The button has a tactile dot.

Playing order

PRESET +, –
.,>

VOL +*, –

Adjusting the audio emphasis

You can adjust the audio emphasis of the sound you are listening to.

To reinforce the bass sound

Press MEGA BASS.
“MEGA BASS” appears in the display.
To return to normal sound, press the button again.

4

• This set can be disassembled in the order shown below.

3-2. NET SUB ASSY

(Page 6)

3-3. COVER (CD) ASSY

(Page 6)

3-5. OPTICAL BLOCK (KSM-900AAA)

RELAY BOARD
(Page 7)

3-6. OPTICAL PICKP-UP (KSS-900A)

(Page 8)

3-10.CHASSIS SECTION

(Page 10)

3-11.MAIN BOARD

(Page 11)

3-4. LCD ASSY

(Page 7)

3-8. SPEAKER (8 cm) (Lch/Rch)

(Page 9)

3-7. CABINET (REAR) ASSY

(Page 8)

3-9. TUNER BOARD

(Page 10)

SET

Note 1: The process described in can be performed in any order.
Note 2: Without completing the process described in , the next process can not be performed.

3-1. DISASSEMBLY FLOW

ZS-D10

SECTION 3

DISASSEMBLY

5

ZS-D10

w

Note: Follow the disassembly procedure in the numerical order given.

3-2. NET SUB ASSY

5

net sub assy

4

claw

3

claw

2

claw

4

claw

3

claw

2

cla

3-3. COVER (CD) ASSY

1

five screws
(BVTP3

×

10)

1

two screws
(BVTP3 × 12)

2

cover (CD) assy

6

3-4. LCD ASSY

ZS-D10

2

1

three screws
(BVTP2.6

×

8)

4

LCD assy

3-5. OPTICAL BLOCK (KSM-900AAA), RELAY BOARD

6

relay board

1

three screws
(BVTP2.6

×

8)

3

FFC (24P)
CN893

3

FFC (20P)
(CNP704)

5

connector
(CNP706)

7

two insulators

7

insulator

4

OP flexible board
(CNP705)

8

optical block
(KSM-900AAA)

2

7

ZS-D10

p

)

3-6. OPTICAL PICK-UP (KSS-900A)

7

sled screw assy (780E)

1

screw

×

8)

(2

2

holder (780C)

5

rack spring (780C)

6

4

screw
(B1.7

×

4)

8

optical pick-u
(KSS-900A)

3

gear (B) (780C)

3-7. CABINET (REAR) ASSY

3

Stick a flat head driver
and push the claw
in the direction of the arrow
to disengage the claw.

5

cabinet (rear) assy

4

four claws

1

four screws
(BVTP2.6

×

10

2

six screws
(BVTP2.6

×

10)

8

3-8. SPEAKER (8 cm) (Lch/Rch)

ZS-D10

Note: The speaker (8cm) (R ch) can be removed

without removing the speaker (R ch) (8cm) in advance.

9

speaker (8cm) (Lch)

8

four screws
(BVTP2.6

×

8)

4

four screws
(BVTP2.6

×

8)

5

speaker (8cm) (Lch)

3

Note: Refer to the figure of

Remove the speaker Lch
lead wire from the incision.

"SPEAKER Lch LEAD
WIRE SETTING"
shown below when install
the speaker Lch lead wire.

7

Remove the speaker Rch
lead wire form the incision.

SPEAKER Lch LEAD WIRE SETTING

chassis

6

connector
(CNP395)

1

connector
(CNP392)

cabinet (front) rear view

speaker (8cm) (Lch)

2

filament tape

boss

incision

speaker Lch lead wire

boss

incision

boss

chassis bottom view

boss

speaker Lch lead wire

filament tape

9

ZS-D10

)

3-9. TUNER BOARD

3

tuner board

2

three screws
(BVTP2.6 × 8

3-10. CHASSIS SECTION

MAIN board

1

three connectors
(CNP301, CNP303, CNP304)

1

connector
(CNP1)

4

chassis section

10

2

two connectors
(CNP391, CNP394)

2

two connectors
(CNP392, CNP395)

3

three screws
(BVTP3

×

10)

3-11. DOOR SW BOARD, MAIN BOARD

e

2

LED board

1

screw
(BVTP2.6

×

8)

3

connector
(CNP401)

7

door SW board

6

screw
(BVTP2.6

0

main board

ZS-D10

×

8)

9

FFC (14P)
(CNP805)

8

6

three screws
(BVTP2.6

5

shield plat

×

8)

4

three screws
(BVTP2.6

×

8)

11

ZS-D10

• This set can be assembled in the order shown below.

4-1. ASSEMBLY FLOW

4-2. CD LID ASSY, SPRING (T)

(Page 13)

4-3. COVER (CD) SUB ASSY, SPRING (U) AND COLLAR

(Page 13)

4-4. HOW TO INSTALL THE CD LID ASSY

(Page 14)

4-5. GEAR

(Page 15)

SECTION 4

ASSEMBLY

4-6. DAMPER

(Page 15)

COVER (CD) ASSY

12

Note: Follow the assembly procedure in the numerical order given.

y

y

4-2. CD LID ASSY, SPRING (T)

a

portion

ditch

ZS-D10

1

Align portion of the spring (T)
with the ditch of the CD lid assy
and install the spring.

a

4-3. COVER (CD) SUB ASSY, SPRING (U) AND COLLAR

CD lid ass

2

collar

1

spring (U)

cover (CD) sub ass

13

ZS-D10

4-4. HOW TO INSTALL THE CD LID ASSY

1

Push the collar fully
in the direction of arrow

A

ditch

A

.

2

Align portion b of the spring (T)
which has been installed to the CD lid assy
with the ditch of the collar and assemble them.

3

Pushing the collar fully in the direction of arrow A,
rotate the CD lid assy in the direction of arrow
one and a half times.

B

portion b of spring (T)

14

A

B

collar

4-5. GEAR

3

screw (BVTP2.6 × 8)

2

Align convex part of the the gear
with the ditch of the CD lid assy
and install the gear.

ZS-D10

cover (CD) sub assy

ditch of CD lid assy

4-6. DAMPER

2

two screws
(BVTP2.6

1

Lid the cover (CD) sub assy
with the CD lid assy.

1

damper

×

8)

15

ZS-D10

r

SECTION 5

ELECTRICAL ADJUSTMENTS

PRECAUTION

1. Setting
MEGA BASS : OFF

TUNER SECTION 0 dB=1 µV

[AM (MW/LW) ]

Setting:

Function: RADIO
Band: AM (US, CND)

MW or LW (AEP, UK, IT, EE)

AM RF signal

generator

30% amplitude
modulation by
400 Hz signal
Output level:
as low as possible

[FM]

Setting:

Function: RADIO
Band: FM

FM RF signal

generator

75 kHz frequency
deviation by 1 kHz
signal
Output level:
as low as possible

Put the lead-wire
antenna close to
the set.

0.01 µF

TUNER board
TP (GND)

TUNER board

TP (VT)

TP (GND)

set

TUNER board
TP (ANT)

set

digital voltmete

100 kΩ

JACK board
CNP392 pin

level meter

3.2

Ω

JACK board
CNP392 pin

JACK board
CNP392 pin

level meter

3.2

Ω

JACK board
CNP392 pin

AM (MW/LW) IF ADJUSTMENT

Adjust for a maximum reading on level meter

T1 450 kHz

AM VCO VOLTAGE ADJUSTMENT (US, CND)

Adjustment Part Frequency Display Reading on Digital Voltmeter

L4 530 kHz 1.0 ± 0.05 V

Confirmation 1,710 kHz 5.3 ± 0.7 V

AM TRACKING ADJUSTMENT (US, CND)

Adjust for a maximum reading on level meter

1

+
–

2

1

+
–

2

L3 620 kHz

CT3 1,400 kHz

MW VCO VOLTAGE ADJUSTMENT (AEP, UK, IT, EE)

Frequency Display Reading on Digital Voltmeter

531 kHz 0.9 ± 0.4 V

1,611 kHz 5.2 ± 0.5 V

MW TRACKING ADJUSTMENT (AEP, UK, IT, EE)

Adjust for a maximum reading on level meter

L3-1 621 kHz

CT3 1,404 kHz

LW VCO VOLTAGE ADJUSTMENT (AEP, UK, IT, EE)

Adjustment Part Frequency Display Reading on Digital Voltmeter

L4 153 kHz 0.6 ± 0.2 V

Confirmation 279 kHz 5.0 ± 0.1 V

LW TRACKING ADJUSTMENT (AEP, UK, IT, EE)

Adjust for a maximum reading on level meter

L3-2 162 kHz

CT5 261 kHz

FM IF ADJUSTMENT

Adjust for a minimum reading on level meter

T2 10.7 MHz

FM VCO VOLTA GE ADJUSTMENT

Adjustment Part Frequency Display Reading on Digital Voltmeter

L2 108 MHz 3.0 ± 0.2 V

Confirmation 87.5 MHz 1.3 ± 0.3 V

•Repeat the procedures in each adjustment several times, and the

tracking adjustments should be finally done by the trimmer ca­pacitors.

• Remove FM antenna in FM adjustment.

16

FM TRACKING ADJUSTMENT

Adjust for a maximum reading on level meter

L1 87.5 MHz

CT1 108 MHz

Adjustment and Connecting Location: TUNER board

(See page 17)

ZS-D10

B

t

t

Adjustment and Connecting Location:

– TUNER BOARD (Component Side) (US, CND) –

AM VCO Voltage Adjustment

FM VCO Voltage Adjustment

AM T rac king Adjustment

L4

L2

CT3
L3

– TUNER BOARD (Component Side) (AEP, UK, IT, EE) –

LW VCO V oltage Adjustment

FM VCO Voltage Adjustment

LW Tracking Adjustment

L4

L2

CT3
L3-2

T2 FM IF Adjustment

T1 AM IF Adjustment

L1
CT1

T2 FM IF Adjustment

T1 AM IF Adjustment

L1
CT1

CT3

MW T rac king Adjustment

L3-1

FM T rac king Adjustmen

FM T rac king Adjustmen

CD SECTION

Perform all CD section check in the test mode.

HOW TO THE SET INTO CD TEST MODE

Procedure:

1. Press the [POWER] or [OPERATE] button to turn the power
on.

2. Press the x button to set the function “CD”.

3. Set the CD test mode by momentarily shorting JC801 and GND
on the MAIN board.

4. Press the x button to enter the CD test mode.
(The message “80” is displayed on the liquid crystal display)

5. To release the CD test mode, press the [POWER] or

[OPERATE] button to turn the power off.

Shorting Location:

JC801

IC801

TRAVERSE CHECK

Procedure:

1. Connect an oscilloscope to TP (TE) and TP (VREF) on the
CD board.

2. Set the CD test mode.

3. Insert the test disc (YEDS-18). (Part No. 3-702-101-01) (CD)

4. Press the NX button.

5. Confirm that the center of the oscilloscope waveform is at 0 V.

6. Confirm that the oscilloscope waveform Vp-p value is at 1.0 ±

0.5 V.

7. Change the test disc (TCD-W082L). (Part No. J-2502-063-2)
(CD-RW)

8. P erform confirmation in the same manner as step 4 to 6.

FOCUS BIAS CHECK

Procedure:

1. Connect the oscilloscope to TP (RF) and TP (VREF) on the
CD board.

2. Set the CD test mode.

3. Insert the test disc (YEDS-18). (Part No. 3-702-101-01) (CD)

4. Press the NX button three times. (LPC ON)

5. Confirm that the oscilloscope waveform is as shown in the
figure below. (eye pattern)
A good eye pattern means that the diamond shape (◊) in the
center of the waveform can be clearly distinguished.

6. Press the NX button. (LPC OFF)

7. Perform confirmation in the same manner as step 5.

8. Change the test disc (TCD-W082L). (Part No. J-2502-063-2)
(CD-RW)

9. Perform confirmation in the same manner as step 4 and 5.

• RF signal reference waveform (eye pattern)

VOLT/DIV: 0.2 V (with the 10: 1 probe in use.)
TIME/DIV: 500 ns

CD:

±

0.2 Vp-p (LPC ON)

1.1

±

0.4 Vp-p (LPC OFF)

1.2
CD-RW:

1.1 ± 0.2 Vp-p (LPC ON)

When observing the eye pattern, set the oscilloscope
for AC range and raise vertical sensitivity.

Connecting Location:

– CD BOARD (Conductor Side) –

TP

IC702

TP

(VREF)

(RF)

TP

(TE)

IC701

– TUNER BOARD (Conductor Side) –

TP

(VT)

TP

(GND)

TP

(ANT)

• Abbreviation
CND: Canadian model
EE : East European model
IT : Italian model

VOLT/DIV: 0.2 V (with the 10:1 probe in use)
TIME/DIV: 1 ms

A

0 V

Vp-p=A+

B

1717

ZS-D10

6-1. BLOCK DIAGRAM – CD Section –

PD1

DETECTOR

A

D

C

B

PD2

I-V AMP

SECTION 6

DIAGRAMS

FIN2

8

FIN1

7

RF AMP, FOCUS/TRACKING SERVO,

DIGITAL SIGNAL PROCESSOR, CLV SERVO,

LPF

+

MIX

DIGITAL FILTER, D/A CONVERTER

IC701

EQ

AGC

RF

4

PH

3

EFMIN

SLISE LEVEL

CONTROL

RAM

ERROR

CORRECTION

AUDIO CD

INTERPOLATION

MUTE

ATTENUATION
DEEMPHASIS

8FS

DIGITAL

FILTER

AUDIO

OUT

1 BIT

DAC

LPF

LCHO
RCHO

DOUT

42

R-CH

45

39

WAVE

SHAPER

Q391

OPTICAL

TRANSCEIVER

IC391

CD L-OUT

(Page 20)

OPTICAL

DIGITAL OUT (CD)

A

F

E

OPTICAL PICK-UP

BLOCK

(KSM-900)

LASER DIODE

LD

PD

2-AXIS

DEVICE

(FOCUS)

(TRACKING)

S/H

A/D

D/A

CONT4

25

PROCESSOR

SW

RUPTURE

DETECT

SERVO

ON :

GENERAL PURPOSE

PORTS

S701

(LIMIT)

When the optical pick-up
is inner position

BH

F

E

LD

PD

T+

T–

F+

F–

AUTOMATIC

POWER

CONTROL

Q701

TIN2

10

TIN1

9

LDD

80

12

11

17

18

APC

FOCUS/TRACKING COIL DRIVE,

SPINDLE/SLED MOTOR DRIVE

IC702

T+

TRACKING

T–

COIL DRIVE

F+

FOCUS

F–

COIL DRIVE

TBAL

79

LDS

AUDIO

ADJUST

TIN

FIN

SW

LPF

TE

13FE15

9

19

TRACK

JUMP

TDO21FDO23SLDO22SPDO

20

RAM

CLV, CAV
CONTROL

CONT1

72

FRAME SYNC

DETECT,

PROTECT, INSERT,

EFM DECODE

PLL

VCEC

CLOCK

GENERATOR

COMMAND
INTERFACE

RES

WRQ

∗

∗

66

65

DO

61CE62CL63DI64

DRF

FSEQ

XOUT

DRF

XIN

31

48

49

67

X701

16.9344MHz

46 C-FSEQ

58 C-DRF

SYSTEM

CONTROLLER

IC801

53 C-DO

54 C-DI

55 C-CLK

56 C-CE

52 WRQ

59 C-RES

(1/2)

40

CD-DOOR

M701

(SLED)

M702

(SPINDLE)

S895

OPEN

SL+

M

27

26

SL–

SLED

MOTOR DRIVE

SLIN

25

• R-ch is omitted due to same as L-ch.

SP+

M

2

1

SP–

SPINDLE

MOTOR DRIVE

SPIN

3

7MUTE

• SIGNAL PATH

: CD PLAY (ANALOG)

: CD PLAY (DIGITAL OUT)

1818