Philips FWM-576 Service Manual

Mini System

FWM576/55

TABLE OF CONTENTS

Page

Location of PC Boards.................................................1-2

Versions Variation & Package .....................................1-2

Specifi cations ..............................................................1-3

Measurement Setup ....................................................1-4

Service Aids, Safety Instruction, etc ..................1-5 to 1-7

Preparations & Controls ..................................1-8 to 1-10

Maintenance & Troubleshooting ................................1-11

Setting Procedure & Repair Instructions .......................2

Disassembly Instructions & Service positions ................3

Block Diagram ................................................................4

Wiring Diagram ...............................................................5

Front Board & Key Board ...............................................6

ECO6 Tuner Board : Systems Non-Cenelec ................7A

ETF7 Tape Board ...........................................................8

Mains Board ...................................................................9

Power Module ..............................................................10

AF9 Board ....................................................................12

Mechanical Exploded View & Parts List .......................13

©

Copyright 2006 Philips Consumer Electronics B.V. Eindhoven, The Netherlands

All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or
transmitted, in any form or by any means, electronic, mechanical, photocopying, or otherwise without
the prior permission of Philips.

Published by SL0652 Service Audio Printed in The Netherlands Subject to modifi cation.

CLASS 1

LASER PRODUCT

GB

3141 785 31250

Version 1.0

LOCATION OF PCBS

1-2

VERSION VARIATIONS:

Type /Versions: FWM576

Features &
Board in used:

Karaoke
News
RDS
Rotary Encoder (volume control) x
Jog Shuttle
Voltage Selector
Aux Input x
Digital Output
Headphone Socket x
Line Output
Matrix Surround Loudspeakers
Standby - FTD Clock Display
ECO Standby - LED Display
ECO6 Tuner board - System Non-Cenelec x
ECO6 Tuner board - System Cenelec
ETF7 Tape Module: Non-Autoreverse Ferro x
USB Direct

/37

x
x

x

/55

x

x

x

x
x

x

x
x

SPECIFICATION

1-3

GENERAL:

Mains voltage : 110-127V /37, 220-240V /55
Mains frequency : 60Hz
Power consumption : < 1W at ECO Standby

< 15W Standby w/Clock on

< 165W Active
Clock accuracy : < 2 seconds per day
Dimension centre unit : 265(W) x 310(H) x 367(D)mm

TUNER:
FM

Tuning range : 87.5-108MHz
Grid : 100kHz
IF frequency : 10.7MHz ± 20kHz
Aerial input : 300Ω pigtail ant wire /37

:75Ω coaxial /55
Sensitivity at 26dB S/N : < 22dBf
Selectivity at 300kHz bandwidth : > 25dB
IF rejection : > 75dB
Image rejection : > 25dB
Distortion at RF=1mV, dev. 75kHz : < 3%

-3dB Limiting point : < 23.5dBf
Crosstalk at RF=1mV, dev. 40kHz : > 18dB

AM

Tuning range : 530-1700kHz
Grid : 10kHz
IF frequency : 450kHz ± 1kHz
Aerial input : Frame aerial 18.1H
Sensitivity at 26dB S/N : < 4.0mV/M
Selectivity at 18kHz bandwidth : > 18dB
IF rejection : > 45dB
Image rejection : > 28dB
Distortion at RF=50mV, m=80% : < 5%

CASSETTE RECORDER:

Number of track : 2 x 2 stereo
Tape speed : 4.76 cm/sec ± 2%
Wow and flutter : < 0.4% DIN
Fast-wind/rewind time C60 : 130 sec
Bias system : 75kHz ± 10kHz
Rec/Pb frequency response within 8dB : 80Hz - 12.5kHz
Signal to noise ratio Type : > 48dBA

COMPACT DISC:

Measurement done at output conn. of the CDC module.
Frequency response within ± 1.5dB: 20Hz - 20kHz
Output level (in Vrms) :550mV ±1dB, R

= 100Ω

out

Signal/Noise ratio (A-weighted) : > 70dBA
Distortion at 1kHz : < 0.003%
Channel unbalance at 1kHz : ± 2dB
Crosstalk at 1kHz : > 55dB
De-emphasis : 0 or 15/50 mS (Switched by subcode

on the disc)
MPEG 1 Layer 3 (MP3-CD) : MPEG AUDIO
MP3-CD Bit Rate : 56-256 kbps
MP3-CD Sampling Frequencies : 32 kHz, 44.1kHz,

48kHz

Recording Format : ISO 9660

UDF format not
supported

USB:

Measurement done at speaker terminals across 6Ω load
w/ 500mW output and DSC setting in Jazz Mode.
Frequency response within ± 3dB : 100Hz - 16kHz
Signal/Noise ratio (A-weighted) : > 60dBA
Channel crosstalk at 1kHz : > 35dB
Channel unbalance at 1kHz : ± 3dB

AMPLIFIER:

Output power:
Low channel (1kHz, 10% THD) :

90W per channel RMS

High channel (10kHz, 10% THD) : 90W per channel RMS
Frequency response within -3dB : 125Hz-16kHz

Dynamic Bass Boost : DBB OFF , DBB 1, DBB 2, DBB 3
Digital Sound Control : Jazz, Rock, Techno, Optimal

2)

2)

Headphone output at 32KΩ : 700mV ± 2dB
Input sensitivity

Aux / CDR : 350mV /900mV





MEASUREMENT SETUP



Tuner FM

1-4

Bandpass

LF Voltmeter

e.g. PM2534

RF Generator 

e.g. PM5326



DUT

250Hz-15kHz

e.g. 7122 707 48001

Ri=50Ω

S/N and distortion meter

e.g. Sound Technology ST1700B

Use a bandpass filter to eliminate hum (50Hz, 100Hz) and disturbance from the pilottone (19kHz, 38kHz).

Tuner AM (MW,LW)

RF Generator 

e.g. PM5326



Ri=50Ω

DUT

Frame aerial

e.g. 7122 707 89001

Bandpass

250Hz-15kHz

e.g. 7122 707 48001

LF Voltmeter

e.g. PM2534

S/N and distortion meter

e.g. Sound Technology ST1700B

To avoid atmospheric interference all AM-measurements have to be carried out in a Faraday´s cage.
Use a bandpass filter (or at least a high pass filter with 250Hz) to eliminate hum (50Hz, 100Hz).

CD





Use Audio Signal Disc
(replaces test disc 3)



SBC429 4822 397 30184

Recorder

Use Universal Test Cassette CrO2 SBC419 4822 397 30069

or Universal Test Cassette



DUT

L

R

S/N and distortion meter

e.g. Sound Technology ST1700B

LEVEL METER

e.g. Sennheiser UPM550

with FF-filter



LF Generator 

e.g. PM5110



Fe SBC420 4822 397 30071

DUT

L

R

S/N and distortion meter

e.g. Sound Technology ST1700B

LEVEL METER

e.g. Sennheiser UPM550

with FF-filter

SERVICE AIDS

1-5

Service Tools:

Universal Torx driver holder .................................4822 395 91019

Torx bit T10 150mm ...........................................4822 395 50456

Torx driver set T6-T20 .........................................4822 395 50145

Torx driver T10 extended .....................................4822 395 50423

Compact Disc:

SBC426/426A Test disc 5 + 5A ...........................4822 397 30096

SBC442 Audio Burn-in test disc 1kHz .................4822 397 30155

SBC429 Audio Signals disc .................................4822 397 30184

Dolby Pro-logic Test Disc ....................................4822 395 10216

HANDLING CHIP COMPONENTS

ESD Equipment:

Anti-static table mat - large 1200x650x1.25mm ...4822 466 10953

anti-static table mat - small 600x650x1.25mm .....4822 466 10958

Anti-static wristband ............................................4822 395 10223

Connectorbox (1M

Extension cable

(to connect wristband to conn.box) ..........4822 320 11305

Connecting cable

(to connect table mat to conn.box) ...........4822 320 11306

Earth cable (to Connect product to mat or box) --4822 320 11308

Complete kit ESD3

(combining all above products) ...............4822 320 10671

Wristband tester ...................................................4822 344 13999

Ω) ..........................................4822 395 11307

WARNING

GB

All ICs and many other semi-conductors are
susceptible to electrostatic discharges (ESD).
Careless handling during repair can reduce life
drastically.
When repairing, make sure that you are
connected with the same potential as the mass
of the set via a wrist wrap with resistance.
Keep components and tools also at this
potential.

F

ATTENTION

Tous les IC et beaucoup d’autres
semi-conducteurs sont sensibles aux
décharges statiques (ESD).
Leur longévité pourrait être considérablement
écourtée par le fait qu’aucune précaution n’est
prise à leur manipulation.
Lors de réparations, s’assurer de bien être relié
au même potentiel que la masse de l’appareil et
enfiler le bracelet serti d’une résistance de
sécurité.
Veiller à ce que les composants ainsi que les
outils que l’on utilise soient également à ce
potentiel.

1-6

ESD

D

WARNUNG

Alle ICs und viele andere Halbleiter sind
empfindlich gegenüber elektrostatischen
Entladungen (ESD).
Unsorgfältige Behandlung im Reparaturfall kan
die Lebensdauer drastisch reduzieren.
Veranlassen Sie, dass Sie im Reparaturfall über
ein Pulsarmband mit Widerstand verbunden
sind mit dem gleichen Potential wie die Masse
des Gerätes.
Bauteile und Hilfsmittel auch auf dieses gleiche
Potential halten.

WAARSCHUWING

NL

Alle IC’s en vele andere halfgeleiders zijn
gevoelig voor electrostatische ontladingen
(ESD).
Onzorgvuldig behandelen tijdens reparatie kan
de levensduur drastisch doen verminderen.
Zorg ervoor dat u tijdens reparatie via een
polsband met weerstand verbonden bent met
hetzelfde potentiaal als de massa van het
apparaat.
Houd componenten en hulpmiddelen ook op
ditzelfde potentiaal.

I

AVVERTIMENTO

Tutti IC e parecchi semi-conduttori sono
sensibili alle scariche statiche (ESD).
La loro longevità potrebbe essere fortemente
ridatta in caso di non osservazione della più
grande cauzione alla loro manipolazione.
Durante le riparazioni occorre quindi essere
collegato allo stesso potenziale che quello della
massa dell’apparecchio tramite un braccialetto
a resistenza.
Assicurarsi che i componenti e anche gli utensili
con quali si lavora siano anche a questo
potenziale.

GB

Safety regulations require that the set be restored to its original
condition and that parts which are identical with those specified,
be used.

NL

Veiligheidsbepalingen vereisen, dat het apparaat bij reparatie in
zijn oorspronkelijke toestand wordt teruggebracht en dat onderdelen,
identiek aan de gespecificeerde, worden toegepast.

F

Les normes de sécurité exigent que l’appareil soit remis à l’état
d’origine et que soient utiliséés les piéces de rechange identiques
à celles spécifiées.

D

Bei jeder Reparatur sind die geltenden Sicherheitsvorschriften zu
beachten. Der Original zustand des Geräts darf nicht verändert werden;
für Reparaturen sind Original-Ersatzteile zu verwenden.

“Pour votre sécurité, ces documents
doivent être utilisés par des spécia­listes agréés, seuls habilités à réparer
votre appareil en panne”.

CLASS 1

LASER PRODUCT

GB

Invisible laser radiation when open.
Avoid direct exposure to beam.

Osynlig laserstrålning när apparaten är öppnad och spärren
är urkopplad. Betrakta ej strålen.

Warning !

S

Varning !

3122 110 03420

I

Le norme di sicurezza esigono che l’apparecchio venga rimesso
nelle condizioni originali e che siano utilizzati i pezzi di ricambio
identici a quelli specificati.

"After servicing and before returning set to customer perform a
leakage current measurement test from all exposed metal parts to
earth ground to assure no shock hazard exist. The leakage current
must not exceed 0.5mA."

Varoitus !

SF

Avatussa laitteessa ja suojalukituksen ohitettaessa olet alttiina
näkymättömälle laserisäteilylle. Älä katso säteeseen!

DK Advarse !

Usynlig laserstråling ved åbning når sikkerhedsafbrydere er
ude af funktion. Undgå udsaettelse for stråling.

1-7

INFORMATION ABOUT LEAD-FREE SOLDERING

Philips CE is producing lead-free sets from 1.1.2005 onwards.

IDENTIFICATION:

Regardless of special logo (not always indicated) one must treat all sets from 1 Jan 2005 onwards, according next rules:

Example S/N:

Bottom line of typeplate gives a 14-digit S/N. Digit 5&6 is the year, digit 7&8 is the week number,
so in this case 2005 wk12

So from 0501 onwards = from 1 Jan 2005 onwards

Important note

: In fact also products of year 2004 must be treated in this way as long as
you avoid mixing solder-alloys (leaded/ lead-free). So best to always use SAC305 and the
higher temperatures belong to this.

Due to lead-free technology some rules have to be respected by the workshop during a repair:

• Use only lead-free solder alloy Philips SAC305 with order code 0622 149 00106. If lead-free solder-paste is required, please contact

the manufacturer of your solder-equipment. In general use of solder-paste within workshops should be avoided because paste is not
easy to store and to handle.

• Use only adequate solder tools applicable for lead-free solder alloy. The solder tool must be able

o To reach at least a solder-temperature of 400∞C,
o To stabilize the adjusted temperature at the solder-tip
o To exchange solder-tips for different applications.

• Adjust your solder tool so that a temperature around 360∞C

ñ 380∞C is reached and stabilized at the solder joint. Heating-time of the
solder-joint should not exceed ~ 4 sec. Avoid temperatures above 400∞C otherwise wear-out of tips will rise drastically and flux-fluid
will be destroyed. To avoid wear-out of tips switch off un-used equipment, or reduce heat.

• Mix of lead-free solder alloy / parts with leaded solder alloy / parts is possible but PHILIPS recommends strongly to avoid mixed

solder alloy types (leaded and lead-free).
If one cannot avoid or does not know whether product is lead-free, clean carefully the solder-joint from old solder alloy and re-solder
with new solder alloy (SAC305).

• Use only original spare-parts listed in the Service-Manuals. Not listed standard-material (commodities) has to be purchased at

external companies.

• Special information for BGA-ICs:

- always use the 12nc-recognizable soldering temperature profile of the specific BGA (for de-soldering always use the lead-free
temperature profile, in case of doubt)

- lead free BGA-ICs will be delivered in so-called ëdry-packagingí (sealed pack including a silica gel pack) to protect the IC against
moisture. After opening, dependent of MSL-level seen on indicator-label in the bag, the BGA-IC possibly still has to be baked dry.
(MSL=Moisture Sensitivity Level). This will be communicated via AYS-website.
Do not re-use BGAs at all.

• For sets produced before 1.1.2005 (except products of 2004), containing leaded solder-alloy and components, all needed spare-parts

will be available till the end of the service-period. For repair of such sets nothing changes.

• On our website www.atyourservice.ce.Philips.com

you find more information to:

☛

BGA-de-/soldering (+ baking instructions)

☛

Heating-profiles of BGAs and other ICs used in Philips-sets

You will find this and more technical information within the ìmagazineî, chapter ìworkshop newsî.

For additional questions please contact your local repair-helpdesk.

SERVICE INSTRUCTION

1. Unplug the AC Power cord and connect a wire
between the two pins of the AC Power plug.

2. Set the AC Power switch to the "on" position (keep the
AC Power cord unplugged!).

3. Measure the resistance value between the pins of the
AC Power plug and the metal shielding of the tuner or
the aerial connection on the set. The reading should be
larger than 4.5 Mohm(For U.S. it should be between

4.2 Mohm and 12 Mohm.

4. Switch "off" the set, and remove the wire between the
two pins of the AC Power plug.

Safety regulations require that after a repair, the set must be returned in its original condition. Pay in particular attention to
the following points:

· Route the wire trees correctly and fix them with the
mounted cable clamps.

· Check the insulation of the AC Power lead for external
damage.

· Check the strain relief of the AC Power cord for proper
function.

· Check the electrical DC resistance between the AC Power
Plug and the secondary side (only for sets which have a AC
Power isolated power supply):

· Check the cabinet for defects, to avoid touching of any
inner parts by the customer.

PREPARATIONS AND CONTROLS

Preparations

Rear connections

The type plate is located at the rear of the

system.

A Powe r

– Before connecting the AC power cord to the

wall outlet, ensure that all other connections

have been made.

WARNING!

–For optimal performance, use only the

original power cable.

–Never make or change any connections

with the power switched on.

To avoid overheating of the system, a safety

circuit has been built in. Therefore, your

system may switch to Standby mode

automatically under extreme conditions. If

this happens, let the system cool down

before reusing it (not available for all versions).

B

Antennas Connection

Connect the supplied AM loop antenna and FM

antenna to the respective terminals. Adjust the

position of the antenna for optimal reception.

AM Antenna

-

Fix the claw

to the slot

1

2

3

AM ANTENNA

Position the antenna as far as possible from a TV,

VCR or other radiation source.

Preparations

FM Antenna

For better FM stereo reception, connect an

outdoor FM antenna to the FM ANTENNA

terminal.

C

Speakers Connection

Front Speakers

Connect the speaker wires to the SPEAKERS

terminals, right speaker to "R" and left speaker to

"L", red wires to "+" and black wires to "-" of

the woofer connection terminals, gray wires to

"+" and blue wires to "-" of the tweeter

connection terminals.

1

2

Fully insert the stripped portion of the speaker

wire into the terminal as shown.

Notes:

–For optimal sound performance, use the

supplied speakers.

– Do not connect more than one speaker to any

one pair of

+

/

-

speaker terminals.

– Do not connect speakers with an impedance

lower than the speakers supplied. Please refer to

the SPECIFICATIONS section of this manual.

Optional connection

The optional equipment and connecting cords

are not supplied. Refer to the operating

instructions of the connected equipment for

details.

Connecting a USB device or memory

card

By connecting a USB mass storage device

(including USB flash memory, USB flash players

or memory cards) to the Hi-Fi system, you can

enjoy the device's stored music through the

powerful speakers of Hi-Fi system.

Insert the USB device's USB plug into the

socket on the set.

for the devices with USB cables:

1

Insert one plug of the USB cable (not supplied)

to the

socket on the set.

2

Insert the other plug of the USB cable to the

USB output terminal of the USB device.

for the memory card:

1

Insert the memor y card into a card reader (not

supplied).

2

Use a USB cable (not supplied) to connect the

card reader into the

socket on the set.

Connecting a non-USB device

Use a cinch cable to connect AUX IN to the

analogue audio out terminals of an external

equipment (TV, VCR, Laser Disc player, DVD

player or CD Recorder).

Note:

– If you are connecting equipment with a mono

output (a single audio out terminal), connect it to

the AUX IN left terminal. Alternatively, you can use

a “single to double” cinch cable (the output sound

still remain mono).

Inserting batteries into the

remote control

Insert two batteries (Type R06 or AA) into the

remote control with the correct polarity as

indicated by the "+" and "-" symbols inside

the battery compar tment.

CAUTION!

– Remove batteries if they are exhausted

or will not be used for a long time.

– Do not use old and new or different

types of batteries in combination.

– Batteries contain chemical substances, so

they should be disposed of properly.

1-8

PREPARATIONS AND CONTROLS

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Controls

Controls on the system and

remote control

1

STANDBY-ON/ ECO POWER (B)

– switches the system on or to Eco Power

standby/normal standby with clock display.

2

DISC 1/2/3 (CD 1/2/3)

– to select a disc tray for playback.

3

Source selection – to select the following :

CD/USB (on the system only)

– to switch between disc or USB source.

CD (on the remote only)

– to select disc source.

– press repeatedly to select a disc tray for

playback.

TUNER

– to select waveband : FM or AM.

TAPE (TAPE 1/2)

– to select tape deck 1 or 2.

AUX

– to select the input for an additional appliance :

AUX.

USB DIRECT (on the remote only)

– to select USB source directly.

4

Mode Selection

ALBUM-/+ 5 6

for MP3-CD/USB .. to select previous/next

album.

for CD ......................... to search backward/forward.

for Tuner ..................... to tune to a lower or higher

radio frequency.

for Tape .......................to rewind or fast forward.

for Clock .................... (on the system only) to set

the hour.

STOP 9

for CD/ MP3-CD/USB to stop playback

or to clear a programme.

for Tuner ..................... (on the system only) to stop

programming.

for Tape .......................to stop playback or

recording.

for Demo ................... (on the system only) to

activate/deactivate the

demonstration.

for Clock .................... (on the system only) to exit

clock setting.

for Plug & Play......... (on the system only) to exit

plug & play mode.

≈2 ;

for CD/ MP3-CD/USB to start or

interrupt playback.

for Tape ....................... to star t playback.

for Plug & Play......... (on the system only) to initiate

and start plug & play mode.

TITLE-/+ w /∑ PRESET

for MP3-CD/USB . to select previous/next title.

for CD ........................ to skip to the beginning of

the current, previous, or next

track.

for Tuner .................... to select a preset radio

station.

for Clock ................... (on the system only) to set

the minute.

5

DSC

– selects different type of preset sound equaliser

settings. (OPTIMAL, JAZZ, ROCK or TECHNO)

6

VAC

– selects different type of ambience-based

equaliser settings. (HALL, CONCERT or

CINEMA)

7

DBB/INC. SURR (DBB/IS)

– to select the desired bass boost level. (DBB 1,

DBB 2, DBB 3 or DBB OFF)

– to activate or deactivate the surround sound

effect.

8

MAX SOUND (MAX)

– to activate or deactivate the optimal mix of

various sound features.

9

REPEAT

– to playback track(s)/disc(s)/programme

repeatedly.

0

SHUFFLE

–Turns on/off the random play mode.

1-9

PREPARATIONS AND CONTROLS

Controls

Notes for remote control:

– First, select the source you wish to control

by pressing one of the source select keys on

the remote control (CD or TUNER, for

example).

– Then select the desired function (

…

,

Ì

,

Î

, for example).

!

DIM

– to select different brightness for the display

screen : DIM 1, DIM 2, DIM 3 or DIM OFF.

@

OPEN #

– to open the tape deck door.

#

PROGRAM

for CD/ MP3-CD/USB to programme disc

tracks.

for Tuner ..................... to programme preset radio

stations.

for Clock .................... to select 12- or 24-hour clock

mode.

$

n

– to connect headphones.

%

MASTER VOLUME (VOL -/+)

– to increase or decrease the volume.

^

IR SENSOR

– sensor for the infrared remote control.

&

RECORD (REC)

– to start recording on tape deck 1 or 2.

*

AUTO REPLAY (A. REPLAY)

– to select continuous playback in either AUTO

REPLAY or ONCE MODE only.

(

Disc tray

)

OPEN•CLOSE

– to open or close the disc tray.

¡

DISC CHANGE

–to change disc(s).

™

Display screen

– to view the current status of the system.

£

SLEEP

– to activate/deactivate or set the sleep timer.

MUTE

–mutes or restores the volume.

∞

TIMER ON/OFF

– activates/deactivates the timer function.

§

DISPLAY

– to display the album and title name for MP3 disc.

≥

Tape deck 1

•

Tape deck 2

ª

CLOCK•TIMER (CLK/ TIMER)

– to view the clock.

º

USB DIRECT

– jack for the external USB mass storage device.

≤

1-10

MAINTENANCE AND TROUBLESHOOTING

Maintenance

Cleaning the Cabinet

Use a soft cloth slightly moistened with a mild

detergent solution. Do not use a solution

containing alcohol, spirits, ammonia or abrasives.

Cleaning Discs

When a disc becomes dirty,

clean it with a cleaning cloth.

Wipe the disc from the centre

out. Do not wipe in circular

motion.

Do not use solvents such as

benzene, thinner, commercially available cleaners,

or antistatic spray intended for analogue records.

Cleaning the disc lens

After prolonged use, dirt or dust may

accumulate at the disc lens. To ensure good

playback quality, clean the disc lens with Philips

CD Lens Cleaner or any commercially available

cleaner. Follow the instructions supplied with

cleaner.

Cleaning the Heads and the Ta pe Paths

To ensure good recording and playback quality,

clean the heads

A

, the capstan(s)

B

, and

pressure roller(s)

C

after every 50 hours of

tape operation.

Use a cotton swab slightly moistened with

cleaning fluid or alcohol.

You also can clean the heads by playing a

cleaning tape once.

C

CB

B

A

Demagnetising the heads

Use a demagnetising tape available at your

dealer.

WARNING

Under no circumstances should you try to repair the system yourself, as this will invalidate the

warranty. Do not open the system as there is a risk of electric shock.

If a fault occurs, first check the points listed below before taking the system for repair. If you

are unable to remedy a problem by following these hints, consult your dealer or Philips for

help.

“NO DISC” is displayed.

“DISC NOT FINALIZED” is displayed.

Some files on the USB device are not

displayed.

“DEVICE NOT SUPPORTED” scrolls on the

display.

Insert a disc.

Check if the disc is inserted upside down.

Wait until the moisture condensation at the lens

has cleared.

Replace or clean the disc, see “Maintenance”.

Use a finalized CD-RW or a correct MP3-CD

format disc.

Use a finalised CD-RW or CD-R.

Check if the number of folders exceeds 99 or

the number of titles exceeds 999.

Remove the USB mass storage device or select

another source..

Problem

Solution

Tr oubleshooting

Radio reception is poor.

Recording or playback cannot be made.

The tape deck door cannot open.

The system does not react when buttons

are pressed.

Sound cannot be heard or is of poor

quality.

The left and right sound outputs are

reversed.

The remote control does not function

properly.

The time is not working.

Not all lighted buttons are showing light.

The Clock/Timer setting is erased.

The system displays features

automatically and buttons start flashing.

If the signal is too weak, adjust the antenna or

connect an external antenna for better

reception.

Increase the distance between the Mini HiFi

System and your TV or VCR.

Clean deck parts, see “Maintenance”.

Use only NORMAL (IEC I) tape.

Apply a piece of adhesive tape over the missing

tab space.

Remove and reconnect the AC power plug and

switch on the system again.

Remove and reconnect the AC power plug and

switch on the system again.

Adjust the volume.

Disconnect the headphones.

Check that the speakers are connected

correctly.

Check if the stripped speaker wire is clamped.

Make sure the MP3-CD was recorded within

32-256 kbps bit rate with sampling frequencies

at 48 kHz, 44.1 kHz or 32 kHz.

Check the speaker connections and location.

Select the source (CD or TUNER, for example)

before pressing the function button ( 2 , w,

).

Reduce the distance between the remote

control and the system.

Insert the batteries with their polarities

(+/– signs) aligned as indicated.

Replace the batteries.

Point the remote control directly towards the IR

sensor.

Set the clock correctly.

Press and hold CLOCK•TIMER to switch on the

timer.

If recording or tape dubbing is in progress, stop

recording.

Press DIM to select DIM OFF display mode.

Power has been interrupted or the power cord

has been disconnected. Reset the clock/timer.

Press and hold 9 on the system to switch off

the demonstration.

1-11

2-1 2-1

DISMANTLING INSTRUCTIONS

Dismantling of the Cassette Cover

2. Twist screw driver

3. Lift up and out

1. Place screw driver
(flat side) between
the cassette cover
& cassette door

Dismantling of the CDC Module and Front Panel

4) Remove the Cover Tray CDC as indicated.

5. Twist screw driver

6. Lift up and out

4. Place screw driver
(flat side) between
the cassette cover
clasp & cassette door

Remove Cover Tray CDC

Remove Cassette Upper Cover

Dismantling of the CDC Module and Front Panel

1) Loosen 4 screws to remove the Cover Top of the set.

2) Loosen 2 screws to remove the Panel Left and 2 screws

to remove the Panel Right of the set.

3) Slide out the CDC Tray as shown in the diagram below with

the help of a flat head screw driver.

Remove Cassette Nether Cover

5) Loosen 2 screws A and 2 screws B to remove the CDC

Module as indicated.

6) Remove 2 screws at the bottom to separate the

Front Panel Assembly from the Plate Bottom .

Front View CDC

Sliding Out The CDC Tray

Remove CDC Module

2-2

2-2

Dismantling of Rear PortionDismantling of the Front Board

1) Remove 6 screws C and 7 screws D as indicated to loosen the Front

Board.

2)

Remove 4 screws E as indicated to loosen the Front Board.

1) Remove 2 screws F as indicated to loosen the Speaker

Board.

2) Remove 1 screws J and uncatch M1 as indicated to

loosen the AF Board.

3) Remove 3 screws K and uncatch M2 as indicated to

loosen the Tuner Board.

4) Remove 4 screws L as indicated to loosen the Panel

Rear .

Remove Main Board

Dismantling of the ETF Tape Module

1) Remove 8 screws G as indicated to loosen the ETF Tape

Module.

Repair Hints

1) The Knob Volume can be remove pull it out in the direction

as indicated. See picture 1.

Picture 1

Repair Hints

2-3

2-3

3) During repair it is possible to disconnect the Tape board

and CDC Module completely unless the fault is sus-

pected to be in that area. This will not affect the

performance of the rest of the set.

Note: The flex cables are very fragile, care should be taken

not to damage them during repair. After repair, be

very sure that the flex cables are inserted properly

into the flex sockets before encasing, otherwise faults

may occurs.

Service pos C

Service pos A

Service pos B

Service pos D

SERVICE TEST PROGRAM

To start service test program

6

& AUX

hold

depressed while

plugging in the mains cord

TUNER
TEST

TUNER

Button pressed?

Y

Display Tuner Version

"ccc"

N

copied to the RAM (see Table1)

N

PRESET

10

11

TUNER

Button pressed?

Y

Service frequencies are

Tuner works normally

except:

PROGRAM button

Disconnect

Mains cord ?

Y

Service Mode left

Europe

"EUR"

87.5MHz

1

108MHz

2

531kHz

3

1602kHz

4

558kHz

5

1494kHz

6

153kHz

7

279kHz

8

198kHz

9

98MHz

87.5MHz

N

East Eur. Extended-band

"EAS"

65.81MHz

108MHz

74MHz

87.5MHz

531kHz

1602kHz

558kHz

1494kHz

98MHz

70.01MHz

65.81MHz

Table 1

STANDBY-ON

Button pressed?

Set is in Service PLAY Mode.

In case of failures, error

codes according to table 2

will be displayed.

The Service Play Mode is intended to
detect and identify the failures in the CD Mode.

In this mode the electronics will still function

en when an error is detected so that

ev
repair activities can be carried out.

East Eur.

"EAS"

87.5MHz

108MHz

87.5MHz

108MHz

531kHz

1602kHz

1700kHz

558kHz

1494kHz

1500kHz

87.5MHz

87.5MHz

87.5MHz

87.5MHz

98MHz

87.5MHz

87.5MHz

87.5MHz

87.5MHz

USA

"USA"

530kHz

560kHz

98MHz

SERVICE
PLAY MODE

Y

Oversea

"OSE"

87.5MHz

108MHz

530/531kHz*

1700/1602kHz*

560/558kHz*

1500/1494kHz*

98/87.5MHz*

87.5MHz

87.5MHz

87.5MHz

87.5/98MHz*

Note: * Depending on the selected grid frequency (9 or 10kHz)

By holding the TUNER and Rbuttons depressed while switching on the Mains supply, one
of the undermentioned features will be activated:

- the tuning grid frequency is toggled between 9kHz and 10kHz for the Oversea (/21) version.

- the extended FM1 (65.81MHz - 74MHz) is toggled on and off for East Eur. (/34) version.

Display shows the

R

OM version *

"S-Vyy"

(Main menu)

N

Error code

E1000

E1001

S refers to Service Mode.

V refers to Version.

yy refers to Software version number of
(Counting up from 01 to 99)

Figure 1

µProcessor.

Figure 2

Error Description

Focus Error
Triggered when the focus could not be found within a certain time when starting up the CD
or when the focus is lost for a certain time during play.

Radial Error
Triggered when the radial servo is off-track for a certain time during play.

DISPLAY
TEST

2;

Button pressed?

Y

Display shows all LEDs on

except ECO POWER.

(see Figure 1)

2;

Button pressed?

Y

Display shows

selected LEDs on

(see Figure 2)

9

Button pressed?

Y

ADC
TEST

N

Display shows "ADC1 Value"

N

Display shows "ADC2 Value"

N

Display shows "ADC3 Value"

AUX

Button pressed?

Y

for ADC1

(Input Line - IoSA2)

AUX

Button pressed?

Y

for ADC2

(Input Line - IoSA1)

AUX

Button pressed?

Y

for ADC3

(Input Line - IoAmNTC)

N

N

N

Sledge In Error

E1002

The sledge did not reach its inner position (inner-switch is still close) before approximately
6 Sec. have passed by. Inner-switch or sledge motor problem.

9

Button pressed?

N

Sledge Out Error

E1003

E1005

E1006

E1007

E1008

E1020

E1070

E1071

E1079

The sledge did not come out of its inner position (inner-switch is still open) before approximately
250 mSec. have passed by. Inner-switch or sledge motor problem.

Jump-offtrack error
Triggered in normal play when the jump destination could not be found within a certain time.
When this error occurred, software will try to recover by initiating the jump command again.
If it is recoverable, the disc will continue to play.

Subcode Error
Triggered when a new subcode was missing for a certain time during play.

PLL Error
The Phase Lock Loop could not lock within a certain time.

Turntable Motor Error
Generated when the CD could not reached 75% of speed during startup within a certain time.
Discmotor problem.

Focus Search Error
The focus point has not been found within a certain time.

This happens when the carousel switch is defective and closed all the time, or when the
carousel is blocked when it is located exactly at a disc position.

This happens when the carousel switch is defective and does not closed electrically, or when
the carousel is blocked in between two disc positions. The time-out is approximately 5 Sec.

The drawer could not open or enter the inside position and is opening again. This happen when
the drawer is blocked and cannot go fully inside or when the drawer switch is defective and does
not close.

Table 2

Y

ADC Test is used for checking the

TEST

ADC inputs to the microprocessor .

The display shows an ADC value
between 0 and 255 for an input
signal between 0 and 5V.

Activated with

ET M

TS

ORPEE

6

ACTION

set A

p t

i

tt

w nr

a

ll

e

Various

other Tests

t

ne

eb

s

EE

o

eh

t

t
"PASS" is displayed if the uProcessor read
back the test pattern correctly, otherwise

9

to Exit

EEPROM FORMAT Load default data. Display shows "NEW"

5

"FAIL" will be displayed.

for 1 second.

Caution!
All presets from the customer will be lost!!

ROTARY
ENCODER TEST

LEAVE SERVICE
TESTPROGRAM

Volume Knob

or

Jog Shuttle knob

Disconnect
mains cord

Display shows value for 2 seconds.
Values increases or decreases in steps of 1
until 0 (Min.) or 40 (Max.) is reached.

MORP

.

SET BLOCK DIAGRAM

4-1

4-1

SET WIRING DIAGRAM

5-1

5-1

6-1

FRONT & KEY & USB BOARD

6-1

TABLE OF CONTENTS

Front PCB Layout Top View ............................................ 6-2

Front PCB Layout Bottom View.......................................6-3

Circuit Diagram ................................................................6-4

PCB Layout (CDC Key & USB Jack Part) ....................... 6-5

Remark: This chapter is only for reference. For Ver. 37, the whole Front
Board Ass'y and Key Board Ass'y and USB Jack Board Ass'y
can be orderd with 12nc: 9940 000 04756 & 9940 000 04757 &
9940 000 04484.

6-2 6-2

PCB LAYOUT - FRONT BOARD (TOP VIEW)

6-3

PCB LAYOUT - FRONT BOARD (BOTTOM VIEW)

6-3

6-4

CIRCUIT DIAGRAM - FRONT & KEY BOARD

6-4

PCB LAYOUT - CDC KEY BOARD

6-5

6-5

PCB LAYOUT - USB JACK BOARD (TOP VIEW) PCB LAYOUT - USB JACK BOARD (BOTTOM VIEW)

7A-17A-1

1

FM

Osc.

FM

Mixer

AM

Mixer

AM

Osc.

AM IF

IF1

IF2

FM

Det.

AM

Det.

3393733

RADIO IC

TEA 5757H

TUNER BOARD

ECO 6

Systems

1018 11

14

15

24

right

right

left

left

stereo

VCO

4140 36 193244 25

Stereo

Decoder

AFC

AFC +

AFC -

4

4

AGC

Pre-

scaler

Multi-

plexer

Charge

pump

Stabilizer

CONTROL

Reference

Oscillator

29

28

27

clock

data

enable

P1

P0

31

30

programmable

output ports

V

Loop

V

Loop

V

Loop

V

Loop

V

Loop

2

6

5

43

C

D

450kHz450kHz450kHz

20

75kHz

V

Stab

AV

Stab

BV

Stab

B

V

Stab

A V

Stab

B

10,7 MHz 10,7 MHz

35 9

Vdd Vcc1

723

V

Stab

A

V

Stab

B

38
34

22

Vcc2

8

ECO6 Systems, 140499

LF filter

RDS

(MPX)

RDS

(MPX)

stereo

clock

data

enable

Version

1120

1

8

FM

Frontend

AM

Frontend

AM-FRAME AERIAL

B

1103

1101

(1102)

A

FM

MPX

buffer ampl.

5

Discriminator

10,7 MHz

Vdd

Vcc1

Vcc

Vcc2

AM-RF

AM-Osc.

FM-Osc.

FM-RF FM-IF 1 FM-IF 2

AM-IF 1 AM-IF 2

AM-AFC

3

2

BLOCK DIAGRAM

ECO6 Tuner Board

version:

SYSTEMS non-CENELEC

TABLE OF CONTENTS

Blockdiagram ..................................................................7A-1

Schematic Diagram.........................................................7A-2

Component Layout..........................................................7A-3

Adjustment table .............................................................7A-3

Electrical Partslist............................................................7A-4

7A-2 7A-2

ECO6 Sys-non Cenelec, 000911

1101 A1
1102 B1
1103 F2
1120 E14
1130 A2
1131 B2
1132 G13
2101 B3
2102 B1
2103 C7
2104 B3
2105 A2
2106 F3
2107 F4
2119 H6
2120 G6
2124 H6
2125 H6
2126 F7
2127 E7
2128 C8
2129 C7
2130 F11
2131 G8
2132 G8
2133 G8
2134 H8
2135 H9
2136 G14
2137 G13
2138 F9
2139 G9
2140 G9
2141 F10
2143 G12
2144 G11
2145 F12
2146 E12
2147 E12
2148 E12
2149 H7
2150 A10
2152 E4
2153 E5
2154 D5
2155 D5
2159 F6
2161 C11
2163 D11
2164 F10
2165 C7
2166 E11
2167 E11
2169 H8
3101 E4
3102 D4
3103 C6
3104 A7
3105 B6
3132 G5
3134 H6
3141 E7
3142 E7
3143 G7
3144 H7
3145 F8
3146 G13
3152 G14
3153 G13
3154 G13
3155 G11
3156 C12
3157 C12
3158 E13
3159 D13
3160 D12
3161 D13
3167 F12
3168 F11
3169 E11
3170 C12
3172 G12
3176 G7
3181 E6
5102 F2
5109 B9
5110 B10
5111 A8
5112 A11
5114 B11
5119 G9
5121 E11
5123 G5
5130 E5
5131 C6
6103 B2
6105-1 F3
6105-2 G5
6106 C3
6107 G13
6120 C13
6130 E5
6131 D5
7101 C8
7102 C6
7103 H7
7111 C13
7112 G12
T102 B2
T103 B2
T105 F2
T106 F2
T109 B6
T110 F5
T111 F4
T112 F7
T113 A8
T114 B10
T115 A8
T116 F10
T117 G13
T118 G11
T120 F13
T121 F13
T122 F13
T123 E13
T124 G14
T125 F14
T126 F13
T127 F13
T128 D7
T140 F11
T141 F10
T142 F10

1

34

6

87

2

1

34

6

87

2

LEGEND

p ...for provision only

USA ... for USA version only
E-EU ... for East European version only

22n

USA

22n

USA

p

p

p

7

1

2

3

8

6105

6

HN1V02H

54

3

6

1

2

7

29

25

13

30

31

16

4

42

15

1

7

22

9

23

38 34

2118

37 35

33

43 39

5

3

8

171412

24

11

10

2019

44

32

41 3640

6

2

27

28

26

1

3

4

5

6

87

2

1

34

6

87

2

1

34

6

87

2

p

SCALER

MULTI-

PLEXER

CONTROL

FILTER

AM

IF

AM

DET

FM

DET

VSTABB

DECODER

CHARGE

PUMP

AGC

OSC

AM DET

FM
IF2

RIPPLE

AGC

STABILIZER

AFC

VDD

VSTABA

AM-IF

MONO/

FM

FRONTEND

CONTROL

XTAL

AGC

PRE-

CTRL

AGC

AM

OSC

AGC

VCC2

FM

OSC

AM

MIXER

MIXER

FM

FM
IF1

FRONTEND

AM

STEREO

STEREO

RDS only

DISCRIMINATOR

to/from

FM-OSCILLATOR

PROGR.

MPX

Q-multiplier

MW

OUTPUT PORTS

to 1120

pin 5

ENABLE/MPX

BUFFER

kHz

VERSION DETECTION

VCO

RIGHT

14

12 3

AM FRAME AERIAL

DATA

C

D

E

F

AM-OSCILLATOR

FM 75 OHM

FM-IF2

MW

2345

AM-RF

450kHz

450kHz

AM-IF2

from 2169

78

AM-AFC

LEFT

67891011 12 13

456

FM-RF

TUNER BOARD ECO6

/ SYSTEMS NON CENELEC

91011121314

A

B

G

H

A

B

1

VCC

STEREO

CLOCK

AMPLIFIER

GND

H

C

D

E

F

G

470n

2132

BAS216

6120

2103

1u

2107

1n

3134

22K

6105-2

HN1V02H

100n

2163

T141

7KL

1K

3144

5102

3157

100K

T109

470R

3153

2130

22n

220R

3105

3142

100K

3167

120R

33p

2149

2K2

3145

1132

C-PAD

T103

T111

2164

470n

T102

2140 15p

2139

2138

2u2

82p

2133

1u

3103

8K2

T120

4p7

2154

3156

1101

USA

YKD21

100K

2161

100n

5119

2119

10p

T142

5123

11p

2106

3172

6106

BAS216

100n

2165

5K6

3154

3155

220R

330R

2124

33K

3176

22n

WRITE-EN

5114

7P

MUTE

P0

P1

PILOT

RF-GND1

RF-GND2

RIGHT

RIPPLE

VCC1

VCC2

VCO

VDD

VSTABA

VSTABB

FM-DEMOD

FM-IF1-IN

FM-IF2

FM-IF2-IN

FM-IN

FM-MIXOUT

FM-OSC

FM-RF

I-TUNE

IF-GND

LEFT

LPF

MPX-IN

AF-OUT

AFC+

AFC-

AGC

AM-AFC

AM-IF1-IN

AM-IF2

AM-MIXOUT

AM-OSC

AM-RF

CLOCK

DATA

DIG-GND

FIELDSTR-IND

5130

T127

T126

220n

2127

5121

DT-381

150K

3169

75K

3102

100K

56K

3141

1131

C-PAD

3132

5112

7P

6107

47R

6131

1SV228

BZX284-C11

1120

FE-BT-VK-N

T118

T140

T117

T112

2131

470n

33K

3101

1SV228

6130

3168

120R

2125

560p

T116

2n2

2148

100n

2141

470R

18p

2120

470R

3158

3152

3159

XH-S

1103

3160

470R

470R

220n

2143

2150

T125

1

2

3

4

5

6

7

8

22R

3146

BF550

7102

5131

11p

2155

O

100K

5110

G

I

1102

not USA

3170

T122

2135

15n

2167

2145

220p

T110

12p

HN1V02H

1n

2166

T105

6105-1

T106

T121

T123

BC547C

7112

3143

2129

100u

C-PAD

1130

22K

220n

2137

T128

3181

1K

330p

2126

2101

47p

BAV99

6103

2104

100p

2153

15p

T124

2152

33n

560p

E-EU

12p

E-EU

2p2

J

33p

2159

220p

2146

2169

2n2

1u

15n

2134

2144

220n

2136

22K

3161

BC857C

BC847C

7111

7103

2147

220p

VCC2

VCC2

VDD

T114

MPX

P1

P0

P1

VDD

MPX

VCC1

VCC1

VCC1

printed

printed

printed

1

2

13

2

1

2

3

1

2

TEA5757H
TEA5759H

J

7101

2128

10u

7111

component mounted

/14 FM-OIRT/MW

/00 /02 FM/MW/LW

6120 3170

/01 FM/MW

VERSION

/00 /02 FM/MW

3156

/17 FM/AM

/06 FM-Japan/AM

3157

VERSION PROGRAMMING COMPONENTS

J ... for Japanese version only

AM-IF1

450kHz

8

5111

1

2

3

4

6

7

T113

T115

FM-IF1

2

G

1I3

O

5109

3104

330R

100n

0R

4103

...V MW mode

...V LW mode

voltages measured while
set is tuned to a strong transmitter

...V FM mode stereo

EVM

V

5V

0V

152kHz, 50mV

pp

stereo stereomono

9.6V

9.5V

9.5V

10.4V

12V

1V

1.3V

1.4V

stereo 0.2V
mono 4.8V

9.6V

12Vtyp

stereo 0.4V

0.15V

11.1V

7.8V

2V

0.7V

0V

1.2V

7.6V
(10-14V)

0.2V

0V

1.2V

0.1V

D

1.4V

0.7V

4

0V

0V

mono 4.8V

1.4V

9.6V

1.4V

0.2V

0.7V

1.4V

7.9V

7.7V

0V

0V

0V

0V

0.6V

0.8V

0.1V

1.6-8V
1-8V

11.1V

0V

1V

1.4V

1.4V

B

7.6V

5

3

2

A

1.3V

0.7V

7.8V

11.1V

0.8V

0.6V

0.6V

1V

0.7V

1V

1.1V

1.1V

0V

0V

2V

C

1

0.8V

1.2V

1.1V

IF-AMP.

BFS20

7119

J

1K

3113

J

2112

J

100p

330R

3119

J

Signal path

FM

AF - left/right

AM
MPX (Audio Frequency)

2102

100n

2105

USA

100n

7A-37A-3

VARICAP ALIGNMENT

FM RF

FM IF

VCO

AM IF

AM RF

3)

108MHz

87.5MHz

(65.81MHz)

87.5MHz

(65.81MHz)

87.5MHz

(65.81MHz)

279kHz

153kHz

1602kHz

531kHz

5130

check

5122

check

5123

check

8V ±0.2V

4.3V ±0.5V

(1.2V ±0.5V)

8V ±0.2V

1.1V ±0.4V

8V ±0.2V

1.1V ±0.4V

1494kHz

558kHz

560kHz 5102

1500kHz

5103198kHz

1494kHz

558kHz

560kHz

1500kHz

198kHz

2106

5102

2106

3142 152kHz ±1kHz

1)

98MHz

5112

MAX

FM

87.5 - 108MHz

(65.81 - 74, 87.5 - 108MHz)

LW

153 - 279kHz

MW

FM/MW/LW- version, 9kHz grid

531 - 1602kHz

1700kHz

530kHz

5123

check

8V ±0.2V

1.1V ±0.4V

1602kHz

531kHz

5123

check

6.9V ±0.2V

1.1V ±0.4V

108MHz

108MHz 2155

5131

MW

FM/AM-version, 10kHz grid

530 - 1700kHz

FM

MW

LW

98MHz, 1mV

continuous wave

450kHz

connect pin 6 of

IC 7101 (AM Osc.)

with 3.3kΩ to Vcc

Use Service Testprogram. By selecting the TUNER TEST test frequencies will be stored as preset frequencies automatically.

4

1

3

5

5

A

A

5119FM

10.7MHz, 45mV

continuous wave

2D

mod=1kHz

∆f=±22.5kHz

1)

If sensitivity of frequency counter is too low adjust to max. channel separation

(input signal: stereo left 90% + 9%, adjust output on right channel to minimum)

Repeat

ECO6, Sys + PA with frame aerial, 070799

TUNER ADJUSTMENT TABLE ( ECO6 FM/MW- and FM/MW/LW - versions with AM-frame aerial )

∆f=±10kHz

VRF = 0.5mV

C

see
remark

2)

220R

100nF

36

IC 7101

220R

100nF

40

IC 7101

2141

shortcircuit
to block AFC

21

IC 7101

max.

symmetric

f

o

AM AFC

MW

C

continuous wave

VRF = 2mV

5111

5114

2

0 ± 2 mV DC

0 ± 3 mV DC

MW

4)

FM/MW/LW- and FM/MW-version
( 9kHz grid)

531 - 1602kHz

B

∆f = ±30kHz
V

RF

as low as

possible

max.

symmetric

f

o

MW

FM/AM-version, 10kHz grid

530 - 1700kHz

3)

For AM RF adjustments the original frame antenna has to be used !

2)

RC network serves for damping the IF-filter while adjusting the other one.

4)

MW has to be aligned before LW.

Waverange Input frequency Input Tuned to Adjust Output Scope/Voltmeter

FM

87.5 - 108MHz

(65.81 - 74, 87.5 - 108MHz)

FM/MW-version, 9kHz grid

531 - 1602kHz

(as low as

possible)

ECO6 System non Cenelec stage .3, 120900

TUNER BOARD ECO6

Systems non Cenelec

/ componentside view

1101 A6
1102 B6
1103 D6

1120 A4
1130 B5
1131 D5

1132 A5
2106 C5
2107 B5

2128 C4
2129 B4
2133 D2

2138 C2
2144 B2
2155 C4

3142 D2
5102 D6
5109 A3

5110 B3
5111 B4
5112 A3

5114 A2
5119 C2
5121 B2

5123 D5
5130 D3
5131 D4

7112 C1
9101 A2
9103 B2

9104 B5
9105 B1
9106 B3

9107 D4
9108 C4
9109 D2

AM FRAME AERIAL

FM 75Ω

B

A

TUNER BOARD ECO6

Systems - non Cenelec

/

copperside view

2101 B4
2102 B1
2103 D4
2104 B4
2105 C1
2112 B5

2119 D3
2120 D3
2124 D3
2125 D3
2126 D6
2127 C5

2130 D5
2131 C5
2132 D6
2134 D7
2135 D7
2136 A4

2137 A4
2139 C6
2140 C6
2141 C6
2143 C7
2145 A5

2146 B7
2147 A5
2148 B6
2149 D6
2150 B5
2152 C5

2153 C5
2154 C4
2159 C5
2161 A6
2163 B6
2164 C6

2165 C4
2166 B6
2167 B6
2169 A4
3101 D5
3102 C3

3103 C4
3104 B4
3105 C4
3113 B5
3119 B5
3132 D5

3134 D3
3141 C5
3143 D6
3144 B7
3145 C5
3146 C7

3152 A4
3153 A4
3154 C7
3155 C7
3156 A6
3157 A6

3158 A4
3159 A5
3160 A5
3161 A5
3167 B7
3168 C7

3169 B6
3170 A6
3172 C7
3176 D6
3181 D4
4103 B5

4106 C4
4107 C5
4108 C5
6103 B3
6105 C3
6106 C3

6107 C7
6120 A6
6130 D4
6131 C4
7101 C5
7102 D4

7103 D7
7111 A5
7119 B5

These assembly drawings show a summary of all possible versions.
For components used in a specific version see schematic diagram respectively partslist.

ECO6 Systems non CENELEC stage .3, 120900

41..

in schematic diagram)

(not all items shown

SMD jumper

EB

C

A

K

1

2

7

8

4

D

A

C

1

2

5

3

V

dd

Vcc2

Vcc1

8-1

TAPE BOARD

8-1

TABLE OF CONTENTS

PCB Layout Top View ...................................................... 8-2

PCB Layout Bottom View ................................................ 8-2

Circuit Diagram ................................................................8-3

Electrical Parts List ..........................................................8-4

Remark: For Ver /37 & /55, the whole Tape Board Ass'y can be orderd with 12nc: 9940 000 04469

8-2 8-2

PCB LAYOUT - TAPE BOARD (TOP VIEW)

PCB LAYOUT - TAPE BOARD (BOTTOM VIEW)

CIRCUIT DIAGRAM - TAPE BOARD

8-3

8-3

ELECTRICAL PARTS - CASS DECK BOARD

8-4

8-4

3778 9940 000 01249 FUSE RES. 6.8Ω 1/4W +/-5%

!

5703 9940 000 01251 IFT OSC COIL 100KHZ

7610 5322 209 11306 HEF4094BT

7710 9940 000 01248 IC HF4952

7720 9322 140 00668 IC SM AN7323S (MATJ)

7730 9940 000 01248 IC HF4952

7740 9940 000 01248 IC HF4952

7786 4822 130 63494 FET J111

F900 9940 000 01252 FUSE RADIAL F400MA/250V

!

Note: Only these parts mentioned in the list are

normal service parts.

9-1

MAINS BOARD

9-1

TABLE OF CONTENTS

PCB Layout ...................................................................... 9-2

Circuit Diagram ................................................................9-3

Remark: For Ver. /37, this chapter is only for reference, the whole Mains Board Ass'y can be orderd with

12nc: 9940 000 04772

9-2

LAYOUT DIAGRAM - MAINS BOARD (TOP VIEW)

9-2

CIRCUIT DIAGRAM - MAINS BOARD

9-3

9-3

10-1

POWER & BI-AMP &

SPEAKER BOARD

10-1

TABLE OF CONTENTS

Power Board Layout Diagram ....................................... 10-2

Power Board Circuit Diagram Part1 ..............................10-3

Power Board Circuit Diagram Part2 ..............................10-4

BI-AMP Board Layout Diagram .....................................10-5

Speaker Board Layout Diagram ....................................10-5

BI-AMP & Speaker Board Circuit Diagram ................... 10-6

Remark: For Ver./37, this chapter is only for reference, the whole Power Board Ass'y and BI-AMP Board Ass'y and Speaker

Board Ass'y can be orderd with 12nc: 9940 000 04755 and 9940 000 04759 and 9940 000 04761.

LAYOUT DIAGRAM - POWER BOARD

10-2

10-2

CIRCUIT DIAGRAM - POWER BOARD
PART 1

10-3

10-3

CIRCUIT DIAGRAM - POWER BOARD
PART 2

10-4

10-4

LAYOUT DIAGRAM - BI-AMP BOARD

10-5

10-5

LAYOUT DIAGRAM - SPEAKER BOARD

10-6

CIRCUIT DIAGRAM - BI-AMP BOARD & SPEAKER BOARD

10-6

12-1 12-1

BRIEF INTRODUCTION OF THE AF9 BOARD

The AF9 Board consists of the following features :

a. TDA7468D IC

TDA7468D IC (7501) which includes functions such as source selection, loudness control, dynamic bass control, treble
control, volume control and muting function. Sound features such as ALC, DBB, DSC and IS are controllable via I2C Bus
from the microprocessor.

The TDA7468D IC caters for 4 input sources namely TUNER, TAPE, CD and AUX. It also has a Mic mix input. In our
application, software will switch the input source to previous source MUTE during STANDBY mode and some other
occasions where noise from other input source is undesirable.

AF9 BOARD

TABLE OF CONTENTS

Brief Introduction of the AF9 Board ............................... 12-1

AF9 Board - Component layout ..................................... 12-2

AF9 Board - Chip layout ................................................ 12-3

AF9 Board - Circuit Diagram (Part 1) ............................ 12-4

AF9 Board - Circuit Diagram (Part 2) ............................ 12-5

Note that the input to the TDA7468D IC must be ac coupled to prevent 'polp' noise.
Input networks are included to provide appropriate attenuation for various sources.

b. SIMPLE MIC MIXING

The AF9 Board has provisions which can be configured to cater for one of the following:
MM : which caters for Mic mixing with additional Mic amplifier board.
NM : non Mic mixing.

c.

DOLBY PRO LOGIC (DPL) INTERFACE
The AF9 Board has provisions which can be configured to cater for DPL.

LINE OUT

d.

Line out cinch socket for connection to external amplifier.

e.

SUB-WOOFER OUT
Sub-woofer out cinch socket for connection to active sub-woofer speaker.

INCREDIBLE SURROUND

f.

Incredible surround effect using transistor circuit to create phase shifting and spatial effect.

g.

HEADPHONE AMPLIFIER
Headphone amplifier to drive 32 ohm to 1kohm headphone.

CD STANDBY CONTROL

h.

CD Standby Control circuit which switches on the supply to CD servo control IC, digital out buffer IC, HF circuit and the laser
light pen in CD mode only.

i.

ATTENUATION NETWORK
Attenuation network is provided at the output of the AF9 Board for interfacing with power board of different output power.

j.

CD DIGITAL OUT
CD Digital out cinch socket for connection to external digital audio decoders.

CHIP LAYOUT

12-2

This assembly drawing shows a summary of all possible versions. For components used in a specific version see schematic diagram and respective parts list.

12-2

3139 113 3435 pt4 dd wk0142

COMPONENT LAYOUT

This assembly drawing shows a summary of all possible versions. For components used in a specific version see schematic diagram and respective parts list.

12-3

12-3

3139 113 3435 pt4 dd wk0142

12-4

SOURCE SELECTION & SOUND PROCESSING CIRCUIT

12-4

12-5

HEADPHONE AMPLIFIER & I2C EXPANDER CIRCUIT

12-5

1K

12-6

DIGITAL OUT & INTERCONNECTION CIRCUIT

12345678

E

F

UV55

YKC21-3416

1

COAX

DIGITAL

OUT

4921

GND_EMC

FE-BT-VK-N

1206

1203

1

2

3

4

5

6

7

8

9

FROM / TO Power Board

10

11

1n

GND_D

1204

EH-B

FROM / TO Power Board

1801

2955

1

2

3

4

5

6

7

8

1201

1202

EH-B

3

2

2807
100n

P

T050

T051

1205

1
2
3
4
5
6
7
8

3806

T121
T067
T068
T069
T070
T071
T072
T073

1

2

3

4

5

6

7

8

9

11

75R

10

12

13

14

T054
T055
T056
T057
T058
T059
T060
T061
T062
T063
T064
T065
T066
T124

UE55

3809

47R

3805

220R

SW00

AMP_LEFT

aa

AMP_RIGHT

NTC

Low_Pw_Ctrl

Pw_Dn

Clipping

AmOn

F1

F2

AMP_CS_DC

VCDorCDRon

DVD_ON

+12V_A
GND_A

+12V_M
GND_M
+5V6
GND_D
+5V_VCD

2806

9.3V

6

150p

4

For CDR version only

-32V

3821

10R

9634

2208

2210

GND_D

+5V_CD

5801

6RG

2805
100n

+5V6

220n

220n

GND_D

3205

5K6

GND_D

7202

MC78L05

IN OUT

6206

GND_D

3804
220R

5802

2u2

2803

1
2
3

4905

-10V

6205

GND

1N4003

7404

BC817-25

2211

GND_D

1u

2804

100n

+12V_M

-CMOS

2207

BZX79-C10

GND_D

T116

47u

2209

GND_D

100n

GND_D

P

P

T052

3803

2802

47u

6209

3822

4909
4910

2.9V

2

4

6

8

10

12

560R

-Vkk

9614

3820

10R

270R

3808

22K

7802
74LVU04D

14

VCC

1A

1Y

2A

2Y

3A

3Y

4A

4Y

5A

5Y

6A

6Y

GND

7

1n

T053

CD_PORE

GND_D

+5V6_Con

BZX79-C6V8

SE00

3802

22K

2810

47p

GND_D

470R

3807

2K2

4801

P

For VCD version only

4802

3801

1

3

5

9

11

13

9484

1541
FE-BT-VK-N

1542

FE-BT-VK-N

13

12

11

10

9

8

7

6

5

FROM / TO DPL Board

4

3

2

1

UX50

P

4911

2801
100n

2809

100n

2808
100n

GND_D

DSA_STB

For Non-VCD version only

14
13

T074

12

T075

11

T076

10

T077

9

T078

8
7

T079

6

T080

5

T081

4

T082

3
2

T084

1

AMP_CS_DC
AmOn
DPL_Clk
DPL_Data
D_DPL
DPL_Vol_Clk
DPL_Req
+12V_A
SS_L
A_DPL
SS_R
DPL_R
A_DPL
DPL_L

4906

DW00

CW00

3

2

1

GND_D

CD_PORE

For VCD version only

GND_M

+12V_M

6207

6208

1N4003

GND_M

+5V_CD

CD_Right

A_CD

CD_Left

TU_Right

TU_Left

GND_D

EH-B
1524

4914

1525

FE-BT-VK-N

9
8
7
6

1N4003

5
4

3
2
1

FE-BT-VK-N

TU_STEREO

TU_CLK
TU_DATA
TU_ENAB

+12V_A

FROM/TO TUNER

GND_A

2901
100n

FE-BT-VK-N

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

1523

T109

T111

FE-BT-VK-N

1520

T122

GND_EMC

D_Text

1522

8
7
6
5
4
3
2
1

1100

T123

FE-BT-VK-N

T085

T089

19

T090

18

T091

17

T092

16

15

T093

14

T094

13

T095

12

T096

11

T097

10

T098

9

T099

8

T100

7

6

5

T101

4

T102

3

T103

2

T104

1

T105
T106
T107
T108

47n

T110

JW00

aa

+12V_A

2954

A_TU

9483

1521

9486

2520

10n

GND_A

23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7

6
5
4
3
2
1

P

JE00

GND_D

T086

UP_CLK

T087

DQSY

T088

SRDT

GND_D

SHIELD
COAX2

COAX1

GND_D
PORE / DSA_STB

GND_D

SILD
CD_SH_DATA

SICL
CD_SH_CLK
CD_SH_STR

SW_INFO

+12V_M
GND_M

+5V_CD
CD_RIGHT

GND_A

CD_LEFT

470p

470p

2950

2951

100p

FROM/TO 3CDC

RW00

MIC_DET

4904

9904

GND_D

470p

2952

QE10

6204

WW00

GND_D

I2C_Data

I2C_Clk
GND_D

+5V6_Con

+12V_M

P

DSA_STB

2953

HP_DET

Low_Pw_Ctrl

MIC_DET

DPL_Vol_Clk

DPL_Clk

DPL_Data

BZX79-B3V3

NTC

+5V6

-Vkk
F1
F2

4903

P

4907

4908

4915

D_Text

SA_IN

Pw_Dn

Clipping

D_DPL

12-6

4.5V

T112
T113
T114
T115
T130

P

4912

4913

9405

GND_D

FE-BT-VK-N

T117
T118
T119

T120

3412

1K

3.5V

8.5V

4.9V

1403

1404

9

+5V

WE00

FE-BT-VK-N

1401

1

1

2

2

3

3

4

4

5

5

6

6

7

7

8

8

9

9

10

10

11

11

12

12

13

13

14

14

15

15

16

16
17

17

18

18

19

19

UP_CLK

20
21

DQSY
SRDT

22

GND_D

23

1402

FE-BT-VK-N

1

1

2

2

3

3

4

4

5

5

6

6

7

7

8

8

9

9

10

10

11

11

12

DPL_VOL_CLK

13

DPL_CLK

14

DPL_DATA

15

GND_D

1405

1

NTC
GND_D

2

3

I2C_DATA

I2C_CLK

4

GND_D

5

+5V6_CON

6

+11V_D

7

8

+5V6

9

-VKK

10

F1

11

F2

12

CD_SH_DATA
CD_SH_CLK

13

14

CD_SH_STR

GND_D

15

16

SW_INFO
SICL
SILD
DSA_STB/GND_D

FRONT

FROM/TO

TU_STEREO

TU_CLK

TU_DATA
TU_ENAB

Tu_Gnd

HP_DET

SA_IN
POWER_DOWN

CLIP
LOW_PWR_CTRL

MIC_DET

FROM/TO

FRONT

A

B

C

D

E

F

1100 F6
1201 C1
1202 E1
1203 C1
1204 E1
1205 C1
1206 C1
1401 A9
1402 D9
1403 A9
1404 D9
1405 A9
1520 E6
1521 A7
1522 A6
1523 D6
1524 A5
1525 B5
1541 D4
1542 D4
1801 B1
2207 D3
2208 F2
2209 E3
2210 F2
2211 F3
2520 E7
2801 B4
2802 C3
2803 B3
2804 B3
2805 B2
2806 B2
2807 B1
2808 B4
2809 B4
2810 A4
2901 F6
2950 E7
2951 E7
2952 E7
2953 E7
2954 E6
2955 E1
3205 D2
3412 A8
3801 B4
3802 A4
3803 B3
3804 A3
3805 B2
3806 A1
3807 B4
3808 A3
3809 B2
3820 E3
3821 E2
3822 F3
4801 B4
4802 C4
4903 B8
4904 F7
4905 D3
4906 A5
4907 C8
4908 C8
4909 A3
4910 A3
4911 A4
4912 B8
4913 B8
4914 B5
4915 C8
4921 C1
5801 B2
5802 A3
6204 F7
6205 D3
6206 F2
6207 C5
6208 C5
6209 F3
7202 E3
7404 F3
7802 A3
9405 C8
9483 F6
9484 D4
9486 E7
9614 E3
9634 E2
9904 F7
T050 B1
T051 B1
T052 A3
T053 C4

T054 C1
T055 C1
T056 C1
T057 C1
T058 D1
T059 D1
T060 D1
T061 D1
T062 D1
T063 D1
T064 D1
T065 E1
T066 E1
T067 E1
T068 F1
T069 F1
T070 F1
T071 F1
T072 F1
T073 F1
T074 E4
T075 E4
T076 E4
T077 E4
T078 E4
T079 F4
T080 F4
T081 F4
T082 F4
T084 F4
T085 A6
T086 A7
T087 A7
T088 A7
T089 A6
T090 A6
T091 B6
T092 B6
T093 B6
T094 B6
T095 B6
T096 B6
T097 C6
T098 C6
T099 C6
T100 C6
T101 C6
T102 D6
T103 D6
T104 D6
T105 D6
T106 D6
T107 E6
T108 E6
T109 E6
T110 E6
T111 E6
T112 A8
T113 A8
T114 A8
T115 A8
T116 E3
T117 E8
T118 E8
T119 E8
T120 F8
T121 E1
T122 F6
T123 F6
T124 E1
T130 B8

123456789

Updated on 15 SEPT 2003

MECHANICAL EXPLODED VIEW

13-1

13-1

13-2 13-2

MECHANICAL & ACCESSORIES PARTS LIST MISCELLANEOUS PARTS LIST

01 994000004503 CASS LENS BOTTOM L 994000004437 REMOTE CONTROL 994000001257 11P FFC 1.25MM L=260MM
02 994000004502 CASS LENS BOTTOM R 996510000973 LEFT SPEAKER BOX 994000001262 19P FFC 1.25MM L=280MM
03 994000004501 CASS LEFT TOP LENS 996510000974 RIGHT SPEAKER BOX 994000001335 7P FFC 1.25MM L=220MM
04 994000004499 CASS RIGHT TOP LENS
05 996510000981 CASS BOX LEFT 994000001478 AC PLUG ADAPTOR 994000001363 7P FFC1.25MM L=180MM

06 996510000980 CASS BOX RIGHT 994000001381 FM ANT (BLACK) 1M 994000001364 15P FFC1.25MM L=180MM
07 994000001267 SPRING -RIGHT 994000001192 AM LOOP ANTENNA LAN-031 994000001366 4P FFC1.25MM L=240MM
08 996510000979 FRONT CAB 994000001368 7P FFC1.25MM L=370MM

09 994000001282 DISPLAY RING 994000003669 CD MECHANISM (SANYO) DA11VF
10 994000001308 DISPLAY LENS 994000004454 CD+USB BD ASS'Y

11 996510000978 CDC TRAY DOOR 994000004455 3CD MECHA CASING ASS'Y
13 994000001297 VOL KNOB GRIP 994000004457 5P FFC L=200MM(AA)
14 994000004505 VOL KNOB RING 994000004461 12P FFC 1.25MM L=220MM (AB)
15 994000001281 COSMETIC RING 994000004462 4P FFC 1.25MM L=270MM(AA)
16 994000001266 SPRING -LEFT 994000004484 USB JACK BD ASS'Y

17 994000001295 DAMPER GEAR ASS'Y 994000004485 CASS BD PART
18 994000001268 SPRING COMPRESSION 994000004487 16P FFC 1MM L=170MM
19 994000001294 PUSH CATCH LEFT 994000004515 TRANSFORMER EI86 127/240V
20 994000001293 PUSH CATCH 996510000975 8P FFC 1.25mm L240mm
21 994000001284 LEFT-BRACKET

! 994000003633 AC CORD SET VDE APP 6FT 994000001362 8P FFC1.25MM L=160MM

22 994000001283 RIGHT-BRACKET
23 994000004495 USB DIRECT
27 994000004509 STANDBY KEY
28 994000001307 STANDBY LENS
29 996510000984 CD DISC KEYS

30 994000004508 AUTO KEYS
31 996510000983 SOURCE KEYS
32 996510000985 MODEL KEY
33 994000004512 MAX KNOB
34 996510000987 DBB-GUIDE LIGHT LENS

35 996510000986 CD CONTROL KEY
36 996510000982 CD PLAY KEY
38 996500038473 IR LENS
50 994000001276 PANEL LEFT
51 994000004455 3CD MECHA CASING ASS'Y

52 994000001285 TOP COVER
54 994000001277 PANEL RIGHT
55 994000004458 LOGIC DECK W991D-5168
59 994000001264 FOOT RUBBER 4MM
64 994000004465 STOPPER HEATSINK

70 996500041822 FAN DC12V 0.17A 4500RPM

Note: Only these parts mentioned in the list are Note: Only these parts mentioned in the list are

normal service parts. normal service parts.

13-3

ELECTRICAL PARTS LIST - POWER BOARD ELECTRICAL PARTS LIST - AF9 BOARD

1280 ! 994000001356 FUSE RADIAL T2.5A/250V 1501 994000001221 RCA JACK 2P (WH/RD)
CON8 994000001219 SPK JACK (RD/BLK/BLK/RD) 3627 ! 994000001358 FUSE RES. 10R 1/4W +-5%
IC1 994000004477 IC (SANYO) STK403-120 3821 ! 994000001358 FUSE RES. 10R 1/4W +-5%
IC2 994000004443 TRANSISTOR BDW94C 7202 994000001357 IC LM78L05-AC
L1 994000004483 FM COIL 8X11.5T (1MM) 7403 994000001199 IC M62320FP

L2 994000004483 FM COIL 8X11.5T (1MM) 7501 994000001202 IC TDA7468D
Q16 996500041825 TRANSISTORS 2N5551 7601 994000001201 IC NJM4556AM
Q19 996500041825 TRANSISTORS 2N5551
Q25 994000004444 TRANSISTOR BDX53BFP
R120

R13 994000004473 RES. METAL 0.33R 1W +-1%
R15 994000004473 RES. METAL 0.33R 1W +-1%
R200 996500041826 RESISTOR NTC 10K -10% 5X6MM
R3 994000004473 RES. METAL 0.33R 1W +-1%
R34 994000004473 RES. METAL 0.33R 1W +-1%

R38 994000004473 RES. METAL 0.33R 1W +-1%
R46 994000004473 RES. METAL 0.33R 1W +-1%
R72
R8 994000004473 RES. METAL 0.33R 1W +-1%
R9 994000004473 RES. METAL 0.33R 1W +-1%

! 994000004478 FUSE RES. 1R 1W +-5%

! 994000004472 RES. FUSIBLE 47R 1W +-1%

Note: Only these parts mentioned in the list are

normal service parts.

ELECTRICAL PARTS LIST - BI-AMP BOARD

7800 996500041829 IC YD4558
7801 994000004143 NPN TRANSISTORS 9014C
7802 994000004143 NPN TRANSISTORS 9014C
IC3 994000004477 IC (SANYO) STK403-120
Q28 996500041825 TRANSISTORS 2N5551

Q9 996500041825 TRANSISTORS 2N5551
R137 994000004473 RES. METAL 0.33R 1W +-1%
R143 994000004473 RES. METAL 0.33R 1W +-1%
R145 994000004473 RES. METAL 0.33R 1W +-1%
R64

R66 994000004473 RES. METAL 0.33R 1W +-1%

! 994000004472 RES. FUSIBLE 47R 1W +-1%

ELECTRICAL PARTS LIST - SPEAKER BOARD

J8 994000002448 SPEAKER JACK WP4-19
L3 994000004483 FM COIL 8X11.5T (1MM)
L4 994000004483 FM COIL 8X11.5T (1MM)