SONY ZS S50CP Diagram

ZS-S50CP

SERVICE MANUAL

Ver. 1.1 2007.08

Model Name Using Similar Optical Pick-up Block NEW Optical Pick-up Block Type KSM-213CCP

SPECIFICATIONS

CD player section

System

Compact disc digital audio system

Laser diode properties

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.)

Number of channels

Frequency response

20 - 20 000 Hz +1/−1 dB

Wow and flutter

Below measurable limit

Radio section

Frequency range

FM: 87.5 - 108 MHz AM: except Mexican model:

531 - 1 611 kHz (9 kHz step) 530 - 1 610 kHz (10 kHz step)

Mexican model:

530 - 1 710 kHz

FM: 10.7 MHz AM: 450 kHz

Antennas

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

AEP Model

E Model

Power output

4.5 W + 4.5 W (at 6 Ω, 10% harmonic distortion)

Power requirements

For player: Mexican model: 120 V AC, 60 Hz Singapore model: 230 - 240 V AC, 50 Hz Other models: 230 V AC, 50 Hz 9 V DC, 6 R20 (size D) batteries For remote control: 3 V DC, 2 R6 (size AA) batteries

Power consumption

AC 16 W

Battery life

For player:

FM Radio reception

Sony R20P: approx. 30 h Sony alkaline LR20: approx. 60 h

CD playback

Sony R20P: approx. 8 h Sony alkaline LR20: approx. 20 h

It is recommended that you use alkaline batteries.

Dimensions

Approx. 480 × 156 × 250 mm (w/h/d) (incl. projecting parts)

Mass

Approx. 4.3 kg (incl. batteries)

Supplied accessories

AC power cord (1) Remote control (1)

General

Speaker

Full range: 10 cm dia., 6 Ω, cone type (2)

Input

AUDIO IN jack (stereo minijack): Minimum input level 245 mV

Outputs

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

9-887-662-02

Sony Corporation

Personal Audio Division Published by Sony Techno Create Corporation

Design and specifications are subject to change without notice.

PERSONAL AUDIO SYSTEM

ZS-S50CP

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.

CAUTION

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

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

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

3. DISASSEMBLY

3-1. Disassembly Flow ........................................................... 6

3-2. Cabinet (Lower) Assy...................................................... 7

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

3-4. CD Block ......................................................................... 8

3-5. Main Block Assy ............................................................. 9

3-6. MAIN Board, CD Block Assy......................................... 9

3-7. Speaker (10 cm) (SP101) (L-CH),

Speaker (10 cm) (SP201) (R-CH) ................................... 10

3-8. Belt .................................................................................. 10

3-9. Optical Pick-up Block (KSM-213CCP) .......................... 11

4. TEST MODE ............................................................... 12

5. ELECTRICAL ADJUSTMENTS .......................... 12

6. DIAGRAMS

6-1. Block Diagram – CD SERVO Section – ......................... 15

6-2. Block Diagram – TUNER Section – ............................... 16

6-3. Block Diagram – MAIN Section – .................................. 17

6-4. Block Diagram – POWER SUPPLY Section – ............... 18

6-5. Printed Wiring Boards – CD Section – ........................... 20

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

6-7. Printed Wiring Board – TU Board –................................ 22

6-8. Schematic Diagram – TU Board – .................................. 23

6-9. Printed Wiring Boards – JACK Section – ....................... 24

6-10. Printed Wiring Board – MAIN Board – .......................... 25

6-11. Schematic Diagram – MAIN Section (1/2) – .................. 26

6-12. Schematic Diagram – MAIN Section (2/2) – .................. 27

6-13. Printed Wiring Board – LCD Board –............................. 28

6-14. Printed Wiring Boards – KEY Section –......................... 29

6-15. Schematic Diagram – PANEL Section – ......................... 30

6-16. Printed Wiring Boards – POWER SUPPLY Section –.... 32

6-17. Schematic Diagram – POWER SUPPLY Section – ........ 33

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.

7. EXPLODED VIEWS

7-1. Overall Section ................................................................ 42

7-2. Cabinet (Lower) Section.................................................. 43

7-3. Cabinet (Upper) Section .................................................. 44

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

7-5. Front Panel Assy.............................................................. 46

7-6. Main Block Section ......................................................... 47

7-7. Loading Mechanism Section ........................................... 48

7-8. CD Block ......................................................................... 49

8. ELECTRICAL PARTS LIST .................................. 50

SECTION 1

SERVICING NOTES

ZS-S50CP

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.

MODEL IDENTIFICATION

– Model Number Label –



MODEL NO.

PERSONAL AUDIO SYSTEM

ZS-S50CP

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.

Mexican model: AC: 120 V 60 Hz 16 W Singapore model: AC: 230 - 240 V Other models: AC: 230 V - 50 Hz 16 W

50 Hz 16

ZS-S50CP

Basic Operations

SECTION 2

Playing a CD/MP3 disc

Press CD ȳ on the unit.

“CD” app ears in the display.

Press ìȶ on the unit, and place a disc with the label side up on the CD tray.

To c lose the CD tray, press ì

Press

on the unit.

e unit plays all the tracks/MP3 les once. When you place MP3 discs, “MP3” appears in the display aer the unit reads the le information.

Audio CD

Track number Playing time

MP3 disc

on the unit.

GENERAL

Tips

Playback starts from the track/MP3 le you last stopped playing

(Resume play). During stop, the track/MP3 le number to be played is displayed. To cancel the resume play (to start play from the beginning of the

rst track/MP3 le), press you open the CD tray or turn o the unit, the resume play is also canceled.

Notes

When pressing ȯ (ßˎÑ, ùˎÃ, j, ) on the unit, press

the marking at the part near the outer edge. You cannot locate a specic track if “SHUF” or “PGM” is lit in the

display. Press “SHUF” and “PGM” disappears from the display.

Example of folder structure and playing order

e playing order of the folders and les is as follows:

while the CD is stopped. When

, and then press MODE Ȯ repeatedly until

Folder

MP3 le

This section is extracted from instruction manual.

Changing the AM tuning interval

If you need to change the AM tuning interval, do the

(except Mexican model)

following:

If you need to change the AM tuning interval, do the following:

Press RADIO BANDˎAUTO PRESET ȴ on the unit until “AM” is displayed.

Press ENTER ȯ on the unit for 2 seconds.

Press RADIO BANDˎAUTO PRESET ȴ on the unit for 2 seconds.

“9K STEP” or “10K STEP” ashes.

Press TUNE + or – on the unit to select “9K STEP” for 9 kHz interval or “10K STEP” for 10 kHz interval.

Press ENTER ȯ on the unit.

Aer changing the tuning interval, you need to reset your preset AM radio stations.

*VOLUME + Ȱ and àȫ on the unit have a tactile dot.

Before using the unit

To turn on/o the power

Press POWER ȩ.

To adjust the volume

Press VOLUME +, – Ȱ.

To listen through headphones

Connect the headphones to the  (headphones) jack ȸ.

To select the sound characteristic

Press SOUND Ȳ repeatedly to select the audio emphasis you want.

Choose To get

To reinforce the bass sound

Press MEGA BASS ȱ to display “MEGA BASS” in the display. To return to normal sound, press MEGA BASS disappear from the display.

Powerful, clean sounds, emphasizing low and high range audio

Light, bright sounds emphasizing high and middle range audio

Percussive sounds, emphasizing bass audio

The presence of vocals, stressing middle range audio

The whole dynamic range for music such as classical music

MP3 le number After the song title is displayed,

*If the playing time is more than 100 minutes, it appears “--:--” in

the display.

To Pr ess

Pause playba ck

Stop playback

Go to the next track/ MP3 file

Go back to the previous track/MP3 file

Select a folder on an MP3 disc

Locate a point while listening to the sound

Locate a point while observing the display

Remove the CD

On the remote

To s elect CD function, press FUNCTION Ⱥ repeatedly to select “CD” in the display.

the playing time* will appear.

. To resume play, press it again.

ßˎÑ (Ñ

on the remote) ȯ.

ùˎÃ (Ã

on the remote) ȯ.

/PRESET + ( + on the remote) to go forward and /PRESET – ( – on the remote)ȯ to go backward.

ßˎÑ

(forward) or

ùˎÃ

)

ùˎÃ

)

(backward) ȯ while playing and hold it until you find the point. (On the remote,

use

ßˎÑ

(backward) ȯ in pause and hold it until you find the point. (On the remote, use

Notes on MP3 discs

When the disc is inserted, the unit reads all the les on that disc.

During this time, “READING” is displayed. If there are many folders or non-MP3 les on the disc, it may take a long time for play to begin or for the next MP3 le to start play. We recommend that you do not save unnecessary folders or les other than MP3 ones in the disc to be used for MP3 listening. A folder that does not include an MP3 le is skipped.

Maximum number of les: 255

Maximum number of folders: 150 (including the root folder)

Maximum number of folders and les in total: 300 Maximum directory levels: 8 Folder names and le names can be displayed with up to 32

characters including quotation marks. e characters A - Z, 0 - 9, and _ can be displayed on this unit.

Other characters are displayed as “_”. is unit conforms to Version 1.0, 1.1, 2.2, 2.3 and 2.4 of the ID3 tag

format. When the le has the ID3 tag information, “song title”, “artist name” and “album name” can be displayed. If the le does not have the ID3 tag information, “NO TITLE” appears instead of song title, “NO ARTIST” appears instead of artist name and “NO ALBUM” appears instead of album name. e ID3 tag information can be displayed with up to 30 characters. e characters may not be displayed correctly according to the

character code. When naming, be sure to add the le extension “mp3” to the le

name. If you put the extension “mp3” to a le other than an MP3 le, the

unit cannot recognize the le properly and will generate random noise that could damage your speakers. e le name does not correspond to the ID3 tag.

Listening to the radio

To listen to FM or AM

Press RADIO BANDˎAUTO PRESET ȴ on the unit

BANDȴ on the remote) repeatedly to

(RADIO

select FM or AM.

Hold down TUNE + or – ȯ until the frequency digits begin to change in the display.

e unit automatically scans the radio frequencies and stops when it nds a clear station. If you cannot tune in a station, press TUNE + or – repeatedly to change the frequency step by step. When an FM stereo broadcast is received, “ST” appears.

Tip

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

Using the display

You ca n check information about the CD using the display.

Checking the information of an audio CD

To check the total track number and playing time of the CD

Press Ąȫ to stop the CD playback.

Total track number

Total playing time

Checking the information of an MP3 disc

To check the total folder number and total le number on the CD

Press Ąȫ while the CD is stopped, and you can check them in the display.

Total le number Total folder number

To check le information

Press DISPLAY Ȭ on the unit while playing an MP3 disc. e display changes as follows:

e current le number and playing time



e song title (

)



e artist name (

)



e album name (

)

Playing tracks/MP3 les repeatedly

(Repeat Play)

You can play tracks/MP3 les repeatedly in normal, Shue or Program play modes.

1 Press CD

“CD” app ears in the display.

2 Proceed as follows.

To repeat Do this

A single track/MP3 file

1Press REPEAT

until “ 1” appears.

2Press

Ãˎù

ßˎÑ (Ã

or Ñ on the

remote)

to select the track/MP3 le that you

want to repeat.

3Press

. All tracks/ MP3 files on the CD

1Press REPEAT

until “ ” appears.

2Press

A selected folder (MP3 disc only)

1Press MODE

until “ ” appears, and then

press REPEAT

until “ ” appears.

2Select the folder by pressing

/PRESET + or –

(

+ or – on the remote) ȯ.

3Press

. Tracks/MP3 files in random order

1Select Shue Play (see “Playing tracks/MP3 les

in random order”).

2Press REPEAT

until “SHUF” and

“

” appear.

3Press

. Files in a selected folder in random order (MP3 disc only)

1Start Folder Shue Play (see “Playing tracks/

MP3 les in random order”).

2Press REPEAT

on the unit until “ ”,

“SHUF” and “

” appear.

3Press

Programed tracks/MP3 files

1Program tracks/MP3 les (see “Creating your

own program”).

2Press REPEAT

until “ ” and “PGM” appear.

3Press

On the remote

To s elect the CD function, press FUNCTION

repeatedly until “CD” appears in the display.

To c ancel Repeat Play

Press REPEAT ȭ until “ ” disappears from the display.

Other Operations

Playing tracks/MP3 les in random order

(Shue Play)

You can play tracks/MP3 les in random order. When playing an MP3 disc, you can also play MP3 les in a selected folder in random order (Folder Shue Play).

1 Press CD

“CD” app ears in the display.

2 Press MODE

until “SHUF” appears in the display.

When you select Folder Shue Play (MP3 disc only), press MODE

on the unit until “ ” and “SHUF”

appear in the display. en press

/PRESET + or

–

on the unit to select a folder you want.

3 Press à

on the unit to start Shue Play.

On the remote

To s elect the CD function, press FUNCTION Ⱥ repeatedly until “CD” appears in the display.

To cancel Shue Play

Stop playing rst. en press MODE Ȯ repeatedly until “SHUF” disappears from the display.

Tips

During Shue Play, you cannot select the previous track/MP3 le by pressing

ùˎÃ (Ã

on the remote) ȯ.

e resume function does not work during Shue Play.

Creating your own program

(Program Play)

You can arrange the playing order of up to 20 tracks on a CD.

1 Press CD

“CD” app ears in the display.

2 Press MODE

repeatedly until “PGM” ashes in the

display.

3 Press

ùˎÃ

ßˎÑ (Ã

or Ñon the

remote)

then press ENTER ȯ for the track/MP3 les you want to program in the order you want. For MP3 les, press

/PRESET + or – ȯ rst and

then press ENTER

Audio CD (Program Play)

Programed track number

Playing order

MP3 disc (Program Play)

Programed track number Playing order

4 Press à

to start Program Play.

On the remote

To s elect the CD function, press CD ȳ.

To c ancel Program Play

Stop playing rst. en press MODEȮ repeatedly until “PGM” disappears from the display.

To delete the last track of the program

Press CLEAR Ȼ on the remote while the player is stopped.

To check the order of tracks before play

Press ENTERȯ. Every time you press the button, the track number appears in the programed order.

To change the current program

Press Ąȫ once if the CD is stopped and twice if the CD is playing. e current program will be erased. en create a new program following the programing procedure.

Tips

If you try to program 21 tracks/MP3 les or more, “FULL” will appear in the display.

You can play the same program again, since the program is saved until you open the CD tray or turn o the power of the unit.

e resume function does not work during Program Play.

Presetting radio stations

You can store radio stations into the unit’s memory. You can preset up to 30 radio stations, 20 for FM and 10 for AM in any order.

1 Press RADIO BAND

AUTO PRESET ȴ on the unit to

select the band.

2 Hold down RADIO BAND

AUTO PRESET ȴ on the

unit for 2 seconds until “AUTO” ashes in the display.

3 Press ENTER

while “AUTO” ashes in the display.

e stations are stored in memory from the lower frequencies to the higher ones.

If a station cannot be preset automatically

You need to preset a station with a weak signal manually.

1 Press RADIO BAND

AUTO PRESET ȴ on the unit to

select the band.

2 Tune in a station you want.

3 Hold down ENTER

on the unit for 2 seconds until

the preset number ashes in the display.

4 Press /PRESE T + or –

on the unit until the preset number you want for the station ashes in the display.

5 Press ENTER

on the unit.

e new station replaces the old one.

On the remote

1 Press RADIO

BANDȴ repeatedly until the band

you want appears in the display.

2 Tune in a station you want.

3 Hold down ENTER

for 2 seconds until the preset

number ashes in the display.

4 Press PRESET + or –

until the preset number you

want for the station ashes in the display.

5 Press ENTER

e new station replaces the old one.

Tip

e preset radio stations remain in memory even if you unplug the AC power cord or remove the batteries.

Playing preset radio stations

1 Press RADIO BAND

AUTO PRESET ȴ on the unit

(RADIO

BANDȴ on the remote) to select the band.

2 Press /PRESE T + or –

on the unit (PRESET + or –

on the remote) to tune in the stored station.

Falling asleep to music

1 Play the music source you want.

2 Press SLEEP

on the unit to display “SLEEP”.

3 Press SLEEP

on the unit to select the minutes

until the unit goes o automatically.

Each time you press the button, the indication changes as follows: “AUTO*”  “60MIN”  “30MIN”  “20MIN”  “10MIN”  “OFF”.

*When you select “AUTO”, the CD stops playing in 90 minutes at

most and the unit goes o automatically. When you are listening to the radio, the radio goes o in 90 minutes.

If 4 seconds have passed aer you pressed SLEEP ȹ, the minutes in the display are entered. When the preset time has passed, the unit goes o automatically.

To cancel the sleep function

Press POWER ȩ to turn o the power.

Tip

e display’s backlight goes o while sleeping time is active.

Connecting optional component

You can enjoy the sound from a PC, TV, VCR, portable digital music player, etc. through the speakers of this unit. Be sure to turn o the power of each component before making any connections. For details, refer to the instruction manual of the component to be connected.

1 Connect the AUDIO IN jack ȷ on the unit to the

line output jack of the portable digital music player or other components using an audio connecting cable* (not supplied).

*For a PC: use a cable which lls the connector of your PC.

For a TV or VCR: use a cable with a stereo-mini plug on one end and two phono plugs on the other end. For a portable digital music player: use a cable with a stereomini plug on both ends.

2 Turn the unit and the connected component on. 3 Press AUDIO IN ȵ and start playing sound on the

connected component.

e sound from the connected component is output from the speakers.

ZS-S50CP

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

3-1. DISASSEMBLY FLOW

SET

3-2. CABINET (LOWER)

ASSY (Page 7)

SECTION 3

DISASSEMBLY

3-3. CABINET (UPPER) ASSY

(Page 8)

3-5. MAIN BLOCK ASSY

(Page 9)

3-6. MAIN BOARD,

CD BLOCK ASSY (Page 9)

3-8. BELT

(Page 10)

3-4. CD BLOCK

(Page 8)

3-9. OPTICAL PICK-UP BLOCK

(KSM-213CCP) (Page 11)

3-7. SPEAKER (10 cm) (SP101) (L-CH),

SPEAKER (10 cm) (SP201) (R-CH) (Page 10)

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

3-2. CABINET (LOWER) ASSY

three screws (B2.6)

ZS-S50CP

cabinet (lower) assy

six screws (B2.6)

foot (felt)

Turn the set.

foot (felt)

six screws (B2.6)

battery case lid

Release two hooks.

connector (CN901)

ZS-S50CP

)

3-3. CABINET (UPPER) ASSY

two screws (B2.6)

screw (B2.6)

screw (P2.6

10)

flexible flat cable (4 core)

(CNP810)

screw (B2.6)

screw (P2.6

10)

3-4. CD BLOCK

two springs (insulator)

cabinet (upper) assy

two floating screws

insulator

CD block

insulator

two floating screws

two springs (insulator)

screw (M3)

insulator

telescopic antenna (ANT1)

floating screw

flexible flat cable (21 core) (CNP201

3-5. MAIN BLOCK ASSY

flexible flat cable (11 core) (CNP806)

flexible flat cable (11 core) (CNP802)

connector (CN306)

connector (CN309)

screw (B2.6)

connector (CN310)

screw (B2.6)

connector (CN902)

main block ass

ZS-S50CP

3-6. MAIN BOARD, CD BLOCK ASSY

IC BA5417 (IC304)

IC BA5417 (IC305)

three screws (B2.6)

two screws (B2.6)

shield plate (main PWB)

two screws (B2.6)

MAIN board

four sheets (1)

four solders

flexible flat cable (7 core) (CNP807)

heat sink assy

transistor 2SD2394-F

three solders

two screws (B2.6)

screw (B2.6)

flexible flat cable (14 core) (with sield (FFC): AEP, Italian, East European, Russian models) (MAIN board: CNP803, CD board: CNP201)

panel (CD)

CD block assy

three screws (B3)

chassis block

flexible flat cable (5 core) (MAIN board: CNP805, MOTOR board: CN001)

ZS-S50CP

3-7. SPEAKER (10 cm) (SP101) (L-CH), SPEAKER (10 cm) (SP201) (R-CH)

speaker (10 cm) (SP201) (R-CH)

four screws

(B3)

speaker box (R) section

connector (CN311)

Remove two solders.

six screws (B2.6)

speaker (10 cm) (SP101) (L-CH)

3-8. BELT

position of belt

six screws (B2.6)

belt

Remove two solders.

speaker box (L) section

belt

four screws (B3)

tray (AU)

claw

3-9. OPTICAL PICK-UP BLOCK (KSM-213CCP)

Remove four solders.

CD board

detection switch (limit) (S201)

optical pick-up block (KSM-213CCP)

ZS-S50CP

flexible flat cable (16 core) (CN301)

Remove four solders.

screw (BVTT2

ZS-S50CP

+ –

CD board

TP121 (RFI) TP124 (VC)

oscilloscope

(DC range)

SECTION 4

TEST MODE

SECTION 5

ELECTRICAL ADJUSTMENTS

COLD RESET

Procedure:

1. In the power on status, press three buttons of [ENTER], x , [POWER] simultaneously.

2. The set is reset and display “RESET”, then becomes standby status.

PANEL TEST MODE

Procedure:

1. In the standby mode or power on status, press three buttons of [ENTER], [SLEEP], [DISPLAY] simultaneously.

2. When enter this mode, it turns on all segments of the liquid crystal display.

3. In this mode, it displays as follows.

[BAND] button : Date/Version display [AUDIO IN] button: Destination display

4. To exit from this mode, press three buttons of [ENTER], [SLEEP], [DISPLAY] simultaneously.

CHANGE OF THE AM TUNING INTERVAL (except Mexican model)

Procedure:

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

2. Press the [BAND] button to select “AM”.

3. Press the [ENTER] button for 2 seconds, and then press the [BAND] button for 2 seconds, “9K STEP” or “10K STEP” is displayed on the liquid crystal display.

4. The AM tuning interval is selected by pressing the [TUNE +]/ [TUNE ---] button, and it is fix ed by pressing the [ENTER] button.

CD SECTION

Note:

1. CD Block is basically constructed to operate without adjustment.

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

3. Use an oscilloscope with more than 10 MΩ 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.

5. Check the focus bias check when optical pick-up block is replaced.

FOCUS BIAS CHECK

Procedure :

1. Connect oscilloscope to TP121 (RFI) and TP124 (VC) on the CD board.

2. Press the [POWER] button to turn the power ON and press the [CD] button to set the “CD” function.

3. Set disc (YEDS-18) on the tray and press the N button to playback.

4. Confirm that oscilloscope waveform is as sho wn 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.

VOLT/DIV: 200 m TIME/DIV: 500 ns

Checking Location:

– CD Board (Conductor Side) –

TP124

(VC)

TP121

(RFI)

IC101

level:

1.2

0.3 Vp-p

ZS-S50CP

TUNER SECTION 0 dB=1 µV

[AM]

Setting:

Function: RADIO Band: AM

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.

set

TU board TP (ANT)

0.01 µF set

TU board TP (GND)

level meter

Ω

+ –

JACK (HP) Board

jack (J301)

level meter

Ω

+ –

JACK (HP) Board

jack (J301)

AM IF ADJUSTMENT

Adjust for a maximum reading on level meter

T1 450 kHz

(): except Mexican model

AM FREQUENCY COVERAGE ADJUSTMENT

Adjustment Part Frequency Display Reading on Digital Voltmeter

L4 530 kHz (531 kHz) 1.0 ± 0.3 V

Confirmation 1,710 kHz (1,611 kHz) 5.2 ± 0.8 V (4.8 ± 0.6 V)

(): except Mexican model

AM TRACKING ADJUSTMENT

Adjust for a maximum reading on level meter

L3 620 kHz (621 kHz)

CT3 1,400 kHz (1,404 kHz)

FM IF ADJUSTMENT

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 ± 0.3 V

Confirmation 87.5 MHz 1.3 ± 0.4 V

FM TRACKING ADJUSTMENT

Adjust for a maximum reading on level meter

L1 87.5 MHz

CT1 108 MHz

Adjustment and Connecting Locations: TU board (see page 14)

digital voltmeter

TU board

100 k

TP (VT)

TP (GND)

Ω

• 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.

ZS-S50CP

Adjustment and Connecting Location:

– TU Board (Component Side) –

AM Frequency Coverage Adjustment

FM Frequency Coverage Adjustment

– TU Board (Conductor Side) –

(VT)

(GND)

T2 FM IF Adjustment

T1 AM IF Adjustment

L1 CT1

CT3

AM T rac king Adjustment

(ANT)

FM T rac king Adjustment

SECTION 6

DIAGRAMS

6-1. BLOCK DIAGRAM – CD SERVO Section –

DETECTOR

LASER DIODE

I-V AMP

VCC

+3.3V

FNi1 (A)

97 FPi1 (B)

94 FNi2 (C)

96 FPi2 (D)

100 TNi (E)

98 TPi (F)

RFo

3RFRP RFZI

76TEi TEZi

AGCi

83RFEQo 81 RFi

82 RFRPi

ZS-S50CP

30LO

27RO

R-CH

CD-L

(Page 17)

OPTICAL PICK-UP

BLOCK

(KSM-213CCP)

M401

(SPINDLE)

M402

(SLED)

2-AXIS DEVICE

(TRACKING)(FOCUS)

SP+

SP–

SL+

SL–

T+

T–

F+

F–

AUTOMATIC

POWER CONTROL

Q301

91 LDo 92MDi

FOCUS/TRACKING COIL DRIVE,

SLED/SPINDLE MOTOR DRIVE

2 VO1+

1 VO1–

12 VO2–

11 VO2+

18 VO3+

17 VO3–

26 VO4+

VO4–

IC401

MUTE

BIAS

IN1

IN2’

IN3’

IN4’

84 VRo

13 DMo

12 FMo

10 TRo

9 FOo

CD-MP3 PROCESSOR

IC101

38BUS0

39BUS1 59 BUS1

40BUS2 (SO) 60 BUS2

41BUS3 (SI) 61 BUS3

42BUCK (CLK)

43XCCE

48PIO0

58 BUS0

66 BUCK

67 CCEN

68 REQ

SYSTEM CONTROLLER

IC803 (1/3)

ZS-S50CP

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

SIGNAL PATH

: CD PLAY

+3.3V

S201

(LIMIT)

20 IO0 (/HSO)

XI 23

X102

16.9344MHz

O-TRY-CLS 89

O-TRY-OPN

54SBSY 37XRST

XO 24

57 SBSY 70 MP3/CD-RST 69 MMUTE

I-TRY-OPN

I-TRY-CLS

MOTOR DRIVE

IC601

OPEN/CLOSE DETECT

S001

DISC TRAY

OPEN

M001

(LOADING)

1515

ZS-S50CP

6-2. BLOCK DIAGRAM – TUNER Section –

FM/AM RF AMP, MIX, OSC,

FM/AM IF AMP, DET, MPX

ANT1

FM TELESCOPIC

ANTENNA

IC1

QUAD

FM IFT

FM IF

FM RF

CT1, L1

FM TRACKING

AM FERRITE-ROD

ANTENNA

CT3, L3

AM TRACKING

CT1

CT3

(1/2)

FM RF-IN

RF AMP

FM RF-OUT

AM RF-IN

RF AMP

AM OSC

AM FREQUENCY

COVERAGE

(2/2)

MIX

OSC

MIX

OSC

AM OSC

20 21

FM OSC

BUFFER

MIX-OUT

4 7

AM IFT

AM IF

OSC

-OUT 19

FM OSC

FM FREQUENCY

COVERAGE

CF2

CF4

FM IF-IN

FM IF

AMP

AM IF-IN

AM IF

AMP

FM DET

AM DET

BUFFER

IF-OUT

17 18

BUFFER

LEVEL

DET

-OUT

IND

ST-IND

MPX

-IN

AMP

MPX

LPF1/BAND

LPF2/MO-ST

MUTE

STEREO/

MONO, FM/AM

L-OUT

R-OUT

R-CH

RA-L

(Page 17)

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

• SIGNAL PATH

: FM

: AM

75kHz

VT B+

LOW-PASS

FILTER

LP-OUT

MW/LW

XOUT

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

13817 16

MO/ST

CCB

INTERFACE

MUTING

Q801

R MUTING

R DATA

R CLOCK

R CE

R COUNT

R DATA, R CLOCK, R CE,

R COUNT, R MUTING

(Page 17)

ZS-S50CP

1616

6-3. BLOCK DIAGRAM – MAIN Section –

(Page 15)

(Page 16)

CD-L

RA-L

J302

AUDIO IN

R-CH

INPUT SELECTOR,

ELECTRICAL VOLUME

IC302

L2-IN

L1-IN

L4-IN

L-IGOUT

L-VOLIN

DATA21CLK

L-OUT

ZS-S50CP

R-CH

MEGA BASS

CONTROL

Q101

MUTING

Q102

R-CH

POWER AMP

IC304

POWER AMP

IC305

SP201 (R-CH)

SP101 (L-CH)

J301

(Page 16)

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

5.53MHz

X802

R DATA R CLOCK R CE R COUNT R MUTING

SHIFT CLOCK

Q802, 803

RESET SIGNAL

GENERATOR

IC802

EEPROM

IC805

TU-DATA

TU-CLK

TU-CE

TU-COUNT

TU-BMUTE

100

CLKSFT-AM

CLKSFT-FM

21 22

XRESETSYS +3.3V

ROM-SDA ROM-SCL

VOL-DATA

VOL-CLK

SYSTEM CONTROLLER

IC803 (2/3)

A-MUTE

BASS-ON

LCD-SO LCD-SCK LCD-CSB

LCD-INHB

LCD-RSTB

I-KEY0 – I-KEY2

I-WAKEUP

O-BK-LIGHT

19 20 14 12 13

44 – 46

WAKE UP

SWITCH

Q806

SW +9V

LED DRIVE

Q402

LCD DRIVER

IC402

SCK

CSB INHB RSTB

SEG1 – SEG32

COM1 – COM4

S401 – 405,

S407 – 422

D404

OPR/BATT

D402, 403

(LCD BACK LIGHT)

46 44 45

SEG1 – SEG32

5 – 12,

14 – 25, 27 – 38

COM1 – COM4

1 – 4

32 – 136 – 33

LCD401

LIQUID CRYSTAL DISPLAY

ZS-S50CP

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

SIGNAL PATH

: FM

: CD PLAY

I-RMC

REMOTE CONTROL

RECEIVER

IC401

: AUDIO IN

1717

ZS-S50CP

6-4. BLOCK DIAGRAM – POWER SUPPLY Section –

AMP B+

LCD-VDDON

BATCHK-H REG6V-CHK REG3V-CHK

CD-ON

SYSTEM CONTROLLER

IC803 (3/3)

SYS +3.3V

LCD +3.3V

RMC +3.3V

43 38 39

+1.5V

CD +1.5V

CD +3.3V

CD POWER

ON/OFF SWITCH

Q909, 910

REG +6.2V

VOL B+

VT B+

SW +9V

REGULATOR

IC201

B+ SWITCH

Q915

D913

+3.3V

REGULATOR

Q913

D914

B+ SWITCH

Q807, 812

B+ SWITCH

Q808, 809

D805

B+ SWITCH

Q814, 815

+6.2V

REGULATOR

Q907

+3.3V

REGULATOR

IC801

B+ SWITCH

Q904, 906

D917

RECT

D901 – 904

F902

T901

POWER

TRANSFORMER

J901

AC IN

O-PCONT

I-AC/DC

BATCHK-M

AC POWER

SUPPLY DETECT

Q804

BATTERY

VOLTAGE DETECT

Q810, 811. 816

MAIN POWER

ON/OFF SWITCH

Q905

DRY BATTERY

SIZE "D"

(IEC DESIGNATION R20)

6PCS. 9V

ZS-S50CP

1818

+ 42 hidden pages

SONY ZS S50CP Diagram

TABLE OF CONTENTS

SERVICING NOTES

GENERAL

3-1. DISASSEMBLY FLOW

DISASSEMBLY

3-2. CABINET (LOWER) ASSY

3-3. CABINET (UPPER) ASSY

3-4. CD BLOCK

3-5. MAIN BLOCK ASSY

3-6. MAIN BOARD, CD BLOCK ASSY

3-7. SPEAKER (10 cm) (SP101) (L-CH), SPEAKER (10 cm) (SP201) (R-CH)

3-8. BELT

3-9. OPTICAL PICK-UP BLOCK (KSM-213CCP)

TEST MODE

ELECTRICAL ADJUSTMENTS

DIAGRAMS

6-1. BLOCK DIAGRAM – CD SERVO Section –

6-2. BLOCK DIAGRAM – TUNER Section –

6-3. BLOCK DIAGRAM – MAIN Section –

6-4. BLOCK DIAGRAM – POWER SUPPLY Section –