Sony ZSYN-7 Service manual

ZS-YN7

SERVICE MANUAL

Ver. 1.1 2005.09

US and foreign patents licensed from Dolby Laboratories.

SPECIFICATIONS

AUDIO POWER SPECIFICATIONS

(US model only)

POWER OUTPUT AND TOTAL HARMONIC
DISTORTION
With 3.2-ohm loads, both channels driven from
100 - 10,000 Hz; rated 1.7 W per channel­minimum 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

400 r/min (rpm) to 1 000 r/min (rpm) (CLV)

Number of channels

2

Frequency response

20 - 20 000 Hz +0/–1 dB

Wow and flutter

Below measurable limit

Radio section

Frequency range

FM: 87.5 - 108 MHz
AM: 531 - 1 611 kHz (9 kHz step)

530 - 1 610 kHz (10 kHz step)

IF

FM: 10.7 MHz
AM: 450 kHz

Antennas

FM: Telescopic antenna
AM: Built-in ferrite bar antenna

General

Speaker

Full range: 8 cm (3

3.2 Ω, cone type (2)

Output

Headphones jack (stereo minijack):
For 16 - 64 Ω impedance headphones

Power output

2.3 W + 2.3 W (at 3.2 Ω, 10 % harmonic
distortion)

Power requirements

For player
US, Canadian, E and Mexican models:
120 V AC, 60 Hz
Korean model: 220 V AC, 60 Hz
Singapore and Australian model: 230 V AC, 50 Hz
9 V DC, 6 size C (R14) batteries
For remote control:
3 V DC, 2 size AAA (R03) batteries

Power consumption

16 W

1

⁄4 in.) dia.,

US Model

Canadian Model

E Model

Austr alian Model

Model Name Using Similar Mechanism NEW
Optical Pick-up Block Name KSM-213RAP
Optical Pick-up Name KSS-213R

Battery life

For player:

CD playback

Sony R14P: approx. 1.5 h
Sony alkaline LR14: approx. 8 h

Radio reception

Sony R14P: approx. 6 h
Sony alkaline LR14: approx. 20 h

Dimensions

Approx. 455 × 214 × 180 mm (w/h/d)

8 1⁄2 × 7 1⁄

8

(18 ×

Mass

Approx. 3.5 kg (7 lb. 11 oz) (incl. batteries)

Supplied accessories

AC power cord (1) (US, Canadian, E and Mexican models)
Mains lead (1) (Singapore, Korean and Australian models)
Remote control (1)
CD-ROM (SonicStage) (1)
SonicStage Installation/Operating Guide (1)

Design and specifications are subject to change without
notice.

inches) (incl. projecting parts)

9-877-962-02

2005I05-1
© 2005.09

PERSONAL AUDIO SYSTEM

Sony Corporation

Personal Audio Group
Published by Sony Engineering Corporation

ZS-YN7

r

CAUTION

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

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.

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.

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. Follow the manufactur ers’ instructions to use these
instruments.

2. A battery-operated A C milliammeter . The 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 v oltmeter. The “limit” indication
is 0.75 V, so analog meters must have an accurate low-v oltage
scale. The Simpson 250 and Sanwa SH-63Trd are examples
of a passive VOM that is suitable. Nearly all battery operated
digital multimeters that have a 2 V AC range are suitable. (See
Fig. A)

To Exposed Metal
Parts on Set

TABLE OF CONTENTS

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

2. GENERAL ................................................................... 5

3. DISASSEMBLY

3-1. Disassembly Flow ........................................................... 7

3-2. Cabinet Rear Assy ........................................................... 8

3-3. Cabinet (Upper) ............................................................... 8

3-4. Shassis Section ................................................................ 9

3-5. CD Block Section ............................................................ 9

3-6. LCD Board ...................................................................... 10

4. TEST MODE.............................................................. 11

5. ELECTRICAL ADJUSTMENTS

TUNER Section............................................................... 12

CD Section ...................................................................... 14

6. DIAGRAMS

6-1. Block Diagram – CD SERVO Section – ........................ 16

6-2. Block Diagram – TUNER Section – .............................. 17

6-3. Block Diagram – MAIN Section –................................. 18

6-4. Printed Wiring Board – CD Board – .............................. 20

6-5. Schematic Diagram – CD Board – ................................. 21

6-6. Printed Wiring Board – TU Board –............................... 22

6-7. Schematic Diagram – TU Board – ................................. 23

6-8. Printed Wiring Board

– MAIN Board (Component Side) – ............................... 24

6-9. Printed Wiring Board

– MAIN Board (Conductor Side) – ................................. 25

6-10. Schematic Diagram – MAIN Board (1/2) – ................... 26

6-11. Schematic Diagram – MAIN Board (2/2) – ................... 27

6-12. Printed Wiring Boards – KEY Section – ........................ 28

6-13. Printed Wiring Boards – POWER Section – .................. 29

6-14. Schematic Diagram – KEY/POWER Section – ............. 30

7. EXPLODED VIEWS

7-1. Cabinet Rear Section ....................................................... 42

7-2. Cabinet Front Section ...................................................... 43

7-3. Chassis Section................................................................ 44

7-4. LID CD Section............................................................... 45

7-5. Optical Pick-up Block Section (KSM-213RAP)............. 46

8. ELECTRICAL PARTS LIST................................ 47

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 PAR TS WHOSE
PART NUMBERS APPEAR AS SHOWN IN THIS MANU AL OR
IN SUPPLEMENTS PUBLISHED BY SONY.

AC

0.15 µF

1.5 k

Ω

Earth Ground

voltmete
(0.75 V)

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

2

ATTENTION AU COMPOSANT AYANT RAPPORT

À LA SÉCURITÉ!

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

SECTION 1

2

1

S421

SERVICING NOTES

ZS-YN7

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

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.

LASER DIODE AND FOCUS SEARCH OPERATION
CHECK

During normal operation of the equipment, emission of the laser
diode is prohibited unless the upper lid is closed while turning ON
the S421. (push switch type)
The following checking method for the laser diode is operable.

• Method
Emission of the laser diode is visually checked.

1. Open the upper lid.

2. Push the S421 as shown in Fig.1.

Note: Do not push the detection lever strongly, or it may be bent or damaged.

3. Press the u button.

4. 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 with inward motion for the focus search.

Fig.1 Method to push the S421

3

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HARNESS SETTING

H/P board

MAIN board

TU board

4

Basic Operations

Playing a CD

ZS-YN7

SECTION 2

GENERAL

1

3

2

3 Press u (N on the remote).

The player plays all the tracks once.

Display
Audio CD

This section is extracted from
instruction manual.

ATRAC CD/MP3 CD*

Basic Operations

Connect the supplied AC power cord

1 Press OPEN to open the CD lid

2 Press PUSH CLOSE to close the CD

(direct power-on) and place the CD
on the CD tray.

Note

Make sure that the CD is placed properly
on the CD tray. Don’t place it under the
CD tray.

lid.

6

With the label side up

Note

Before playing an ATRAC
CD/MP3 CD, this player
reads all file and group
information on the CD.
Depending on the file
structure, it may take more
than a minute to read them.
During this time, “Reading”
is displayed.

Tips

• To listen through
headphones, connect the
headphones to the i
(headphones) jack.

• Playback starts from the
point you last stopped
playing (Resume play).
During stop, the point to be
played is displayed.
To cancel the resume play
to start play from the
beginning of the first track,
press x in stop mode.

Playing timeTrack number

*When playing an MP3 CD, “MP3”

appears in the display.

File name

Playing timeFile number

Use these buttons for additional operations

POWER

u

x

+, –

VOLUME +, –

>

.

OPEN

To Press

adjust the volume VOLUME +*1, – (VOL +*1, – on the

stop playback x
pause playback u*1 (X on the remote)

go to the next track >
go back to the .

previous track

1

The button has a tactile dot.

*

remote)

Press the button again to resume play after
pause.

continued

7

Notes

• If ATRAC3plus/ATRAC3
files and MP3 files are
recorded on the same CD,
this CD player plays the
ATRAC3plus/ATRAC3
only.

• The playback capability of
this CD player may vary
depending on the quality of
the disc and the condition of
the recording device.

• Characters that can be
displayed on this CD player
are listed below.
–A to Z
–a to z
–0 to 9
–! " # $ % & ' ( ) * + , - . / :

; < = > ? @ [ \ ] ^ _ ` { | }

~
If you use other characters
on your computer using
software such as
SonicStage, they are
displayed as “–” on this CD
player.

• On a disc that has
ATRAC3plus/ATRAC3/
MP3 files, do not save files
in other formats and do not
make unneccessary groups.

To Press

select a group*2 + to go forward and – to go

select a file*

remove the CD OPEN*
turn on/off the player POWER
*2You can operate during play of ATRAC CDs/MP3 CDs.

*3Once you open the CD tray, the track to start play will change to

the beginning of the first track.

The structure of ATRAC CDs/MP3 CDs

ATRAC CDs/MP3 CDs consist of “files” and “groups.” A
“file” is equivalent to a “track” of an audio CD. A “group”
is a bundle of files and is equivalent to an “album.”
For MP3 CDs, this CD player recognizes an MP3 folder as
a “group” so that ATRAC CDs and MP3 CDs can be
operated in the same way.

Playing order of ATRAC CDs and MP3 CDs

For ATRAC CDs, files are played in the order selected in
SonicStage.
For MP3 CDs, the playing order may differ depending on
the method used to record MP3 files on the disc. In the
following example, files are played in order of 1 to 7.

Group
File

ATRAC CD

backward

2

> to go forward and . to go
backward

3

MP3 CD

Notes on ATRAC CDs

•Maximum number of groups: 255
Maximum number of files: 999

•CD-Rs/CD-RWs recorded in the ATRAC3plus/ATRAC3 format
cannot be played on your computer.

Notes on MP3 CDs

•Maximum number of groups: 100
Maximum number of files: 400
Maximum directory level: 8

•A group that does not include an MP3 file is skipped.

• Be sure to add the file extension “mp3” to the file name.
However, if you add the file extension “mp3” to a file other than
an MP3 file, the player will not be able to recognize the file
properly.

• This player can play bit rates of 16 to 320 kbps, and sampling
frequencies of 32/44.1/ 48 kHz. Variable Bit Rate (VBR) file
can also be played.

• To compress a source in an MP3 file, we recommend setting the
compression parameters to “44.1 kHz,” “128 kbps,” and
“Constant Bit Rate.”

• To record up to the maximum capacity, set the writing software
to “halting of writing.”

• To record to the maximum capacity at one time up on media that
has nothing recorded on it, set the writing software to “Disc at
Once.”

Basic Operations

8

9

5

ZS-YN7

Listening to the radio

1 2

Connect the supplied AC power cord

1 Press RADIO•BAND•AUTO

2 Press TUNE + or – and hold it until

PRESET until the band you want
appears in the display (direct power­on).

the frequency digits begin to change
in the display.

The player automatically scans the
radio frequencies and stops when it
finds a clear station.

If you can’t tune in a station, press
TUNE + or – repeatedly to change
the frequency step by step.

Display

Indicates an FM
stereo broadcast

Tip

If the FM broadcast is
noisy, press MODE until
“Mono” appears in the
display and radio will play
in monaural.

Use these buttons for additional operations

POWER

VOLUME +, –

MODE

To Press

adjust the volume VOLUME +*, – (VOL +*, – on the

turn on/off the radio POWER
* The button has a tactile dot.

To improve broadcast reception

Reorient the antenna for FM. Reorient the player itself for
AM.

for FM

remote)

for AM

Basic Operations

10

11

6

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

3-1. DISASSEMBLY FLOW

SET

ZS-YN7

SECTION 3

DISASSEMBLY

3-2. CABINET

REAR ASSY
(Page 8)

3-3. CABINET

(UPPER)
(Page 8)

3-4. CHASSIS

SECTION
(Page 9)

3-5. CD BLOCK

SECTION
(Page 9)

3-6. LCD BOARD

(Page 10)

7

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)

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

3-2. CABINET REAR ASSY

7

cabinet rear assy

5

3

6

connector
(CN902)

three screws
(B2.6)

4

nine screws
(B2.6)

2

three screws
(B2.6)

3-3. CABINET (UPPER)

0

cabinet (upper)

1

three screws
(B2.6)

9

6

connector
(CN301)

two screws
(B2.6)

1

battery lid

8

two screws
(B2.6)

7

connector
(CN322)

4

flexible flat cable (6core)
(CN804)

5

flexible flat cable (3core
(CN802)

2

three screws
(B2.6)

3

handle (front)

8

3-4. CHASSIS SECTION

s

r

3

connector
(CNP1)

4

TU board

9

chassis section

8

two screws (B2.6)

5

flexible flat cable (21core)
(CN803)

ZS-YN7

2

1

screw (B2.6)

3-5. CD BLOCK SECTION

6

connector
(CN807)

8

two screws (B2.6)

9

spring (CD block)

qa

CD block section

qs

0

four screws
(B2.6)

7

8

shield plate (7)

three screws

1

6

MAIN board

4

two wiring stopper

3

5

two screws
(B3)

flexible flat cable (29core)
(CN805)

two screws
(B3)

2

connecto
(CN806)

9

ZS-YN7

)

3-6. LCD BOARD

2

1

5

CD window

9

five screws (B2.6)

8

KEY (JOG) board

6

five screws (B2.6)

4

qs

LCD board

CD ring

0

panel CD sub assy

7

flexible flat cable (5core)
(CN403)

qa

flexible flat cable (21core
(CN401)

10

3

seven screws (B2.6)

SECTION 4

TEST MODE

CD TEST MODE

Procedure:

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

2. Select the CD test mode by momentarily shorting both of T AP
(TEST A).
Refer to CD section of ELECTRICAL ADJUSTMENT (see
page 14) for details of operation in this mode.

LCD TEST MODE

Procedure:

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

2. Set the LCD test mode by momentarily shorting both of TAP
(TEST B) on the MAIN board and the version of micro­computer is displayed.

3. Then all segments on and all segments off are repeated for 10
seconds alternately.

4. To release the LCD test mode, press the [POWER] button to
turn the power off.

Connecting Location:

– MAIN Board (Conductor Side) –

CN803

CN904

CN804

ZS-YN7

IC301

TAP

(TEST B)

TAP

(TEST A)

CN805

11

ZS-YN7

r

SECTION 5

ELECTRICAL ADJUSTMENTS

TUNER SECTION 0 dB=1 µV

[AM]

Setting:

Function: RADIO
RADIO, AUTO PRESET, BAND button: AM

AM RF signal

generator

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

[FM]

Setting:

Function: RADIO
RADIO, AUTO PRESET, BAND button: 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.

set

TU board
TP (ANT)

0.01 µF
set

TU board
TP (GND)

32

i

level meter

Ω

jack (J321)

level meter

32

Ω

i

jack (J321)

AM IF ADJUSTMENT

Adjust for a maximum reading on level meter

T1 450 kHz

(): Singapore, Korean and Australian models

AM FREQUENCY COVERAGE ADJUSTMENT

Adjustment Part Frequency Display Reading on Digital Voltmeter

L4 530 kHz (531 kHz) 1.0 ± 0.05 V

Confirmation

+
–

Adjust for a maximum reading on level meter

L3 620 kHz (621 kHz)

CT3 1,400 kHz (1,404 kHz)

Adjust for a minimum reading on level meter

T2 10.7 MHz

FM FREQUENCY COVERAGE 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

+
–

Adjust for a maximum reading on level meter

L1 87.5 MHz

CT1 108 MHz

1,710 kHz

(1,611 kHz)

5.3 ± 0.7 V (5.2 ± 0.6 V)

(): Singapore, Korean and Australian models

AM TRACKING ADJUSTMENT

FM IF ADJUSTMENT

FM TRACKING ADJUSTMENT

Adjustment and Connecting Location: TU board

(See page 13)

digital voltmete

TU board

Ω

TP (VT)

TP (GND)

100 k

• 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.

12

Adjustment and Connecting Location:

t

– TU Board (Component Side) –

ZS-YN7

AM Frequency Coverage Adjustment

L4

L2

FM Frequency Coverage Adjustment

– TU Board (Conductor Side) –

TP

(VT)

TP

(GND)

T2 FM IF Adjustment

T1 AM IF Adjustment

L1
CT1

CT3

AM T rac king Adjustment

L3

TP

(ANT)

FM T rac king Adjustmen

13

ZS-YN7

CD SECTION

Perform all CD section check in the test mode.

HOW TO THE SET INTO CD TEST MODE

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

2. Select CD function.

3. Press the x button.

4. Set test mode by momentarily shorting both of T AP (TEST A)
on the MAIN board to enter the CD test mode.

LCD display:

88

5. Press the u button, and press the x button to enter the
STOP2 mode.

LCD display:

82

Note: When the following figure is displayed accidentally, release from

the CD test mode and redo operation.

LCD display:

81

TRAVERSE CHECK

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

2. Insert the disc (PATD-012). (Part No.: 4-225-203-01)

3. In the STOP2 mode, press the u button to enter the FOCUS1
mode.

LCD display:

F-

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

5. Confirm that the oscilloscope waveform Vp-p v alue is at 0.35
to 1.1 V.

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

0 V

FOCUS BIAS CHECK

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

2. Insert the disc (PATD-012). (Part No.: 4-225-203-01)

3. In the STOP2 mode, press the u button two times to enter
the ALL SERVO mode.

LCD display:

Vp-p

6. To release the CD test mode, press the x button, and turn the
power off.

Checking Location:

– MAIN Board (Conductor Side) –

CN803

CN904

CN804

TAP

(TEST A)

IC301

CN805

P-

4. 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.

• RF signal reference waveform (eye pattern)

VOLT/DIV: 0.2 V (with the 10: 1 probe in use.)
TIME/DIV: 200 ns

0.6 to 1.2 Vp-p

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

14

Checking Location:

– CD Board (Conductor Side) –

TP

(VC)

TP

(TE)

TP

(RF)

IC702

ZS-YN7

ZS-YN7

1515

ZS-YN7

SECTION 6

DIAGRAMS

6-1. BLOCK DIAGRAM – CD SERVO Section –

OPTICAL PICK-UP

BLOCK

(KSM-213RAP)

VC

16

VCC

15

A

12

B

11

C

10

D

13

E

14

F

9

LD

GND

PD

VR

F+

FOCUS

COIL

COIL

M701

(SLED)

T+

M

TRACKING

RF AMP, FOCUS/TRACKING

ERROR AMP

IC701

RF AC

VC

CD +3.3V

AUTOMATIC

POWER CONTROL

Q701, 702

F-

T-

27

A

6

B

7

C

8

D

9

E

10

F

11

LD

1

PD

2

COIL/MOTOR DRIVE

F+

13

F–

12

T+

2

T–

1

SL+

16

SL–

17

IC704

RFDC

RFDCI

SW

FFDR

FRDR

TFDR

TRDR

SFDR

SRDR

15

28

29

FE

16

FEI

17

TE

18

12

9

10

5

4

20

19

D-RAM

IC705

A10

XWE
XCAS
XRAS

2
.

D0

3
.

D3

22

.

23

8

11

.

A0

14
19

.

7

4

21

5

100

CD DSP

IC702

RFAC

84

88

92

90

91

4
.

3
.

6
.

5

116
113

.

17
15

.

13
11

.

117

2
9
1

96

95

98

97

99

RFDC

FE

TE

SE

D0
D3

A0

A10

XWE
XCAS
XRAS

FFDR

FRDR

TFDR

TRDR

SFDR

SRDR

AOUT1

AOUT2

PCMDI

BCKI

LRCKI

PCMD

BCK

LRCK

XRDE

XTAI

XTAO

SSTP

DATA

CLOK

XLAT

XSOE

SCOR

SENS

FOK

GFS/MNT2/

XROF

51

56

109

111

107

108

110

106

18

16.9344MHz

47

48

101

21

20

23

24
27

22

65

69

R-CH

X701

S701

(LIMIT)

X702

22.58MHz

MP3 DECODER

PCMDO

15

BCKO

13

LRCKO

14

PCMDI

4

BCKI

2

LRCKI

1

XRDE

12

XTAL

30

EXTAL

29

IC703

SDOUT

SDIN

SDCLKI

RDENO

XWAKEI

NRSTI

SYSTEM CONTROLLER

IC802 (1/2)

SDIN

40

41

38

42SDXLATI

37

34

33

85

84

83

90

86

88

87

18

20

16

17

14

19

13

15

SDOUT
SDCLKO

SDXLATO

RDENI

XWAKEO

NRSTO

DATAO

CLKO

XLATO

XSOEO

SCORI

SENSIN

FOKI

GFSI

CD-L

A

(Page 18)

M702

(SPINDLE)

M

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

SIGNAL PATH

: CD PLAY

26

SP–

27

MUTE

24

15

SPIN

SP+

103

MDP

XRST

28

XRSTO

12

LDONO

9

PWM RF

5

PWM FE

8

RW/ROM

4

PWM TE

6

S421

CD LID OPEN/CLOSE

()

DETECT

CD DOOR

37

ZS-YN7

1616

6-2. BLOCK DIAGRAM – TUNER Section –

ANT1

FM TELESCOPIC

ANTENNA

FM/AM RF AMP, MIX, OSC,

FM/AM IF AMP, DET, MPX

IC1

10

QUAD

T2

FM IFT

ZS-YN7

T2

FM IF

L1

FM RF

CT1, L1

FM TRACKING

L3

AM FERRITE-ROD

ANTENNA

CT3, L3

AM TRACKING

CT1

CT3

D1

D3

(1/2)

FM
RF-IN

2

FM
RF-OUT

24

AM
RF-IN

22

AM FREQUENCY

L4

AM

OSC

RF AMP

RF AMP

L4

COVERAGE

D3

(2/2)

FM

AM

FM

MIX

FM

OSC

AM

MIX

AM

OSC

AM OSC

20 21

FM OSC

BUFFER

BUFFER

MIX-OUT

4 7

T1

AM IFT

T1

AM IF

OSC

-OUT
19

L2

FM FREQUENCY

COVERAGE

L2

FM OSC

D2

CF2

CF4

FM
IF-IN

FM IF

AMP

AM
IF-IN

AM IF

6

AMP

FM
DET

AM
DET

IF

BUFFER

IF-OUT

17 18

AF

BUFFER

LEVEL

DET

DET

-OUT

ST

IND

ST-IND

MPX

-IN

AF

16

15

AMP

MPX

LPF1/BAND

LPF2/MO-ST

13

14

MUTE

STEREO/

MONO,
FM/AM

L-OUT

R-OUT

R-CH

TU L-OUT

B

(Page 18)

12

11

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

• SIGNAL PATH

: FM

: AM

X1

75kHz

VT B+

R CE

R DATA, R CLOCK, R CE,

R COUNT, R MUTING

C

(Page 18)

R MUTING

LOW-PASS

FILTER

6

PD

LP-OUT

MW/LW

XOUT

20

19

XIN

REFERENCE

DIVIDER

FM/AM PLL

IC2

LOW-PASS

FILTER

UNLOCK

DETECT

LP-IN

PHASE

DETECTOR/

CHARGE PUMP

12 BIT

PROGRAMMABLE

DIVIDER

SWALLOW

COUNTER

111218

FM IN

AM IN

1/2

SHIFT REGISTER & LATCH

10 9

IF IN

UNIVERSAL

COUNTER

ST-IND

BAND

7

BAND

13817 16

MO/ST

CCB

INTERFACE

DI

2

CL

3

CE

1

DO

4

R DATA

R CLOCK

R COUNT

ZS-YN7

1717

ZS-YN7

6-3. BLOCK DIAGRAM – MAIN Section –

(Page 16)

(Page 17)

(Page 17)

CD L-OUT

A

TU L-OUT

B

R DATA, R CLOCK,
R CE, R COUNT,
R MUTING

C

R DATA
R CLOCK
R CE
R COUNT

R MUTING

MUTING

Q806

21
23
40
22

39

R-DATA
R-CLOCK
R-CE
R-COUNT

R-MUTE

EEP-SDA

41

EEP-SCL

42

6

CD-L

8

RA-L

SI

14 13

67

VOL-DATA

LCD-AD0 – LCD-AD7

44 – 51

3

SELL

INPUT SELECT,

ELECTRICAL VOLUME,

SURROUND/TONE CONTROL

SC

68

VOL-CLK

SYSTEM CONTROLLER

LCD-AO

LCD-WR

70

60

72

2

IC301

IC802 (2/2)

LCD-RES

L-IN

16

LCH

X2

26 28

MEGA BASS

CONTROL

D301

X1

Q101

81

M-BASS

R-CH

MUTING

Q121

77

A-MUTE

3.3V-REG 11

R-CH

POWER

AMP

IC302

CD +3.3V

Q802

MP3 +1.5V

+1.5V

REGULATOR

IC706

+3.3V
REGULATOR
IC901, Q956

CD +6V

R-CH

REGULATOR

+6.2V

Q954

SP101
(L-CH)

SP201
(R-CH)

+9V

J321

i

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

• SIGNAL PATH

: FM

: CD PLAY

5 6

SDA

EEPROM

IC803

SCL

LIQUID CRYSTAL DISPLAY

LCD401

D402

(LCD BACK LIGHT)

(JOG)

µ-COM +3.3V

S401 – 407

S408, 410 – 412

LED DRIVE

Q812

ROTARY

ENCODER

S420

X801

4.19MHz

REMOTE CONTROL

RECEIVER

IC401

WAKE UP

SWITCH

Q807

TAP

(TEST A)

TAP

(TEST B)

61 BACKLIGHT

55 TEST A

56 TEST B

38 REMOTE

52 JOG-A

53 JOG-B

35 WP

95 KEY0

96 KEY11

VOL-CHECK 94

PL-CONT

74CD

+6V

+3.3V

IC801

+6.2V

REGULATOR

Q955

D801

D952

TRIGGER

PLUNGER DRIVE

Q810, 811

B+ SWITCH
Q951 – 953

T901

POWER

TRANSFORMER

RECT

D901 – 904

B+

J901

AC IN

DRY BATTERY

SIZE "C"

(IEC DESIGNATION R14)

6PCS. 9V

RADIO +6V

75RADIO

92BATT

65P-CON

RE B+

69

µ-COM +3.3V

30RESET

B+ SWITCH

B+ SWITCH

Q813, 814

RESET SIGNAL

GENERATOR

IC804

Q808, 809

D401

OPR/BATT

RMC +5V

VT B+

PL801

TRIGGER

PLUNGER

REGULATOR

ZS-YN7

S413 – 419

97 KEY2

36AC-IN

AC CHECK

Q805

1818