Philips FWM37/21/22/25/37 User manual

CLASS 1
LASER PRODUCT
Service
Service
Service
Service
Service
FWM37/21/22/25/37
©Copyright 2005 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 SL0512 Service Audio Printed in The Netherlands Subject to modification.
GB
3141 785 30160
Mini System
TABLE OF CONTENTS
Page
Location of pc boards & Version variations ................1-2
Technical Specifications .............................................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
Disassembly Instructions & Service positions .............. 2
Service Test Program & DEMO Mode ........................... 3
Set Block diagram ......................................................4-1
Set Wiring diagram .....................................................5-1
Front Board .................................................................... 6
ECO6 Tuner Board : Systems Non-Cenelec .............. 7A
ECO6 Tuner Board : Systems Cenelec...................... 7B
ETF7 Tape Board........................................................... 8
3CDC-LC-MP3CD2002 Module .................................. 10
Power Module (30-70W Version) ................................ 11
AF9 Board .................................................................... 12
Set Mechanical Exploded view & parts list ................. 13
Version 1.0
Service Manual
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1-2
LOCATION OF PCBS
AF9 Board
DVD Key Board
Front Board
Mains Board
Power Board
Tuner Board
Tape Board
/21 /22 /25 /37
Karaoke
News x
RDS x
Rotary Encoder (volume control) x x x x
Jog Shuttle
Voltage Selector x
Aux Input x x x x
Digital Output
Headphone Socket x x x x
Line Output
Matrix Surround Loudspeakers
Standby - FTD Clock Display x x
ECO Standby - Dark
x
x
ECO6 Tuner board - System Non-Cenelec x x
ECO6 Tuner board - System Cenelec
x
x
ETF7 Tape Module: Non-Autoreverse Ferro x x x x
POWER 2001 Module (30-70W Version): x x x
VERSION VARIATIONS:
Type /Versions: FWM37
Features &
Board in used:
x
x
x
x
x
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1-3
SPECIFICATIONS
GENERAL:
Mains voltage : 110-127V/220-240V Switchable for /21/21M
230V ± 10% for /22
Mains frequency : 50/60Hz
Power consumption : < 1W at ECO Standby /22
< 15W Standby w/Clock on
< 60W Active
Clock accuracy : < 4 seconds per day
Dimension centre unit : 265 x 310 x 367mm
TUNER:
FM
Tuning range : 87.5-108MHz
Grid : 50kHz
IF frequency : 10.7MHz ±20kHz
Aerial input : 75Ωcoaxial
Sensitivity at 26dB S/N : < 7µV
Selectivity at 600kHz bandwidth : > 25dB
IF rejection : > 60dB [80dB]
Image rejection : > 25dB [75dB]
Distortion at RF=1mV, dev. 75kHz : < 3%
-3dB Limiting point : < 8µV
Crosstalk at RF=1mV, dev. 40kHz : > 18dB
MW
Tuning range : 531-1602kHz
530-1700kHz for /21/37
Grid : 9kHz
10kHz for /21/370
IF frequency : 450kHz ±1kHz
Aerial input : Frame aerial
Sensitivity at 26dB S/N : < 4.4mV/M[4.0mv/m]
Selectivity at 18kHz bandwidth : > 18dB
IF rejection : > 45dB
Image rejection : > 28dB
Distortion at RF=50mV, m=80% : < 5%
AMPLIFIER:
Output power (6Ω, 1 kHz, 10% THD) : 2 x 60W RMS
Frequency response within -3dB : 60Hz-16kHz
Dynamic Bass Boost : DBB OFF, DBB 1, DBB 2, DBB 3 2)
Digital Sound Control : Jazz, Rock, Techno, Optimal 2)
Headphone output at 32KΩ:700mV ±2dB
Input sensitivity
Aux / CDR : 500mV ± 2dB
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, Rout = 100Ω
Signal/Noise ratio (A-weighted) : > 86dBA
Distortion at 1kHz : < 0.003%
Channel unbalance at 1kHz : ±1dB
Channel separation at 1kHz : > 60dB
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
[....] Values indicated are strictly for "Cenelec version" only
1) Frequency response in each setting is software controlled.
120V ± 15% for /37
Incredible Surround : On / Off
Max Sound : Max On, Max Off
Virtual Ambience Control : Cinema, Hall, Concert
300Ωclick fit for /37
:100kHz for /37
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1-4
MEASUREMENT SETUP
Bandpass
250Hz-15kHz
e.g. 7122 707 48001
LF Voltmeter
e.g. PM2534
DUT
RF Generator 
e.g. PM5326
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).
Ri=50Ω

Tuner FM
Bandpass
250Hz-15kHz
e.g. 7122 707 48001
LF Voltmeter
e.g. PM2534
DUT
S/N and distortion meter
e.g. Sound Technology ST1700B
Frame aerial
e.g. 7122 707 89001
Tuner AM (MW,LW)
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).
RF Generator 
e.g. PM5326
Ri=50Ω

L
R
LEVEL METER
e.g. Sennheiser UPM550
with FF-filter
S/N and distortion meter 
e.g. Sound Technology ST1700B
DUT
CD

Use Audio Signal Disc SBC429 4822 397 30184
(replaces test disc 3)

L
R
LEVEL METER
e.g. Sennheiser UPM550
with FF-filter
S/N and distortion meter

e.g. Sound Technology ST1700B
DUT
R
ECORDER

Use Universal Test Cassette CrO2SBC419 4822 397 30069
or Universal Test Cassette Fe SBC420 4822 397 30071

LF Generator 
e.g. PM5110

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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
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 (1MΩ) ..........................................4822 395 11307
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
SERVICE AIDS
HANDLING CHIP COMPONENTS
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1-6
GB
WARNING
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.
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.
NL
WAARSCHUWING
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.
“Pour votre sécurité, ces documents
doivent être utilisés par des spécia-
listes agréés, seuls habilités à réparer
votre appareil en panne”.
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.
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."
CLASS 1
LASER PRODUCT
3122 110 03420
GB
Warning !
Invisible laser radiation when open.
Avoid direct exposure to beam.
S
Varning !
Osynlig laserstrålning när apparaten är öppnad och spärren
är urkopplad. Betrakta ej strålen.
SF
Varoitus !
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.
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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∞Cis 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.
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PREPARATIONS AND CONTROLS
1-8
Preparations
Rear connections
The type plate is located at the rear of the
system.
For users in the U.K.: please follow the
instructions.
A
Power
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 MW loop antenna and FM
antenna to the respective terminals. Adjust the
position of the antenna for optimal reception.
MW Antenna
-
Fix the claw
to the slot
12
3
MW ANTENNA
Position the antenna as far as possible from a TV,
VCR or other radiation source.
SPEAKERS 6!&
R
+
ñ-
L
ñ-
+
AM ANTENNA-
-
LR
speaker-
(right)
speaker-
(left)
MW loop -
antenna
AUX/-
CDR-
IN
AC-
MAINS
AC power cord
FM AERIAL-
75W
FM wire antenna
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", coloured (marked) wire to "+" and black
(unmarked) wire to "-".
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 other equipment to your
system
Use a cinch cable to connect AUX/CDR 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/CDR 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 compartment.
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, s o
they should be disposed off properly.
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PREPARATIONS AND CONTROLS
1-9
5
^
$
3
4
0
&
@
8
*
!
DISC
VAC
DSC
ALBUM
.
REC
SHUFFLE
67
8
23
24
25
26
9
°
*
(
™
$
4
3
1
2
7
&
^
%
)
5
9
6
8
MAX
DBB INC SURR
#
SOUND
MAX
22
28
30
30
27
Controls
Controls on the system and
remote control
1
STANDBY ON
– to switch the system on or to standby mode.
2
ECO POWER
– to switch the system on or to Eco Power
standby mode.
3
DISC 1/2/3 (CD DIRECT 1/2/3)
– to select a disc tray for playback.
4
Source selection – to select the following :
CD (CD 1•2•3)
– to select disc tray 1, 2 or 3.
TUNER (BAND)
– to select waveband : FM or MW.
TAPE (TAPE 1•2)
– to select tape deck 1 or 2.
AUX (VIDEO/CDR)
–to select the input for an additional appliance :
AUX or CDR.
5
Mode Selection
SEARCH• TUNING
for MP3-CD ............. 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
for CD/ MP3-CD .. 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.
PLAY•PAUSE
for CD/ MP3-CD .. to start or interrupt
playback.
for Tape ....................... to start playback.
for Plug & Play......... (on the system only) to initiate
and start plug & play mode.
PREV / NEXT (-TITLE +)
for MP3-CD ............ 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.
6
DSC
– Selects different type of preset sound equaliser
settings. (OPTIMAL, JAZZ, ROCK or TECHNO)
7
VAC
– Selects different type of ambience-based
equaliser settings. (HALL, CONCERT or
CINEMA)
8
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.
9
MAX SOUND
– to activate or deactivate the optimal mix of
various sound features.
0
REPEAT
– to playback track(s)/disc(s)/programme
repeatedly.
!
SHUFFLE
–Turns on/off the random play mode.
38
7
OP
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PREPARATIONS AND CONTROLS
1-10
Controls
@
DIM MODE
– 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 .. 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.
^
VOLUME (VOL +/-)
– to increase or decrease the volume.
&
NEWS/RECORD
–to hear News automatically.
– to start recording on tape deck 2.
*
RDS/AUTO REPLAY (A.REPLAY)
– to select RDS information.
– 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.
B
– to switch the system to standby mode.
– to switch the system to Eco Power standby
mode.
DISPLAY
– Display the album and title name for MP3 disc.
Tape deck 1
•
Tape deck 2
º
CLOCK•TIMER (CLK/ TIMER)
– to view the clock.
ª
∞
§
24
22
27
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 ( ,
,
, for example).
O
P
3
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PREPARATIONS AND CONTROLS
1-11
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.
CCB 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.
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.
Problem Solution
Troubleshooting
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 connec ted
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 ( , , ).
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 on the system to switch off
the demonstration.
7
OP
3
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2-1 2-1
DISMANTLING INSTRUCTIONS
Dismantling of the Cassette Cover
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
Remove Cassette Upper Cover
Dismantling of the CDC Module and Front Panel
Remove CDC Module
4) Remove the Cover Tray CDC as indicated.
Front View CDC
Remove Cover Tray CDC
Dismantling of the CDC Module and Front Panel
Sliding Out The CDC Tray
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 .
3. Lift up and out
1. Place screw driver
(flat side) between
the cassette cover
& cassette door
2. Twist screw driver
6. Lift up and out
4. Place screw driver
(flat side) between
the cassette cover
clasp & cassette door
5. Twist screw driver
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2-2 2-2
Dismantling of the ETF Tape Module
1) Remove 8 screws G as indicated to loosen the ETF Tape
Module.
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) The Knob Volume can be remove pull it out in the direction
as indicated. See picture 1.
Picture 1
Repair Hints
Remove Main Board
1) Remove 3 screws J and uncatch M1 as indicated to
loosen the AF Board.
2) Remove 3 screws K and uncatch M2 as indicated to
loosen the Tuner Board.
3) Remove 4 screws L as indicated to loosen the Panel
Rear .
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2-3 2-3
Service pos D
Service pos A
Service pos C
Repair Hints
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 B
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3-1 3-1
ACTION
To Switch on Hold the 9button down for 5 seconds during Standby, DEMO
will begin.
To Switch off Hold the 9button down for 5 seconds during the DEMO display,
the set will confirm with "DEMO OFF" and switch to Standby.
DEMO Mode
Various
other Tests
Activated with ACTION TEST
QEEPROM FORMAT Load default data. Display shows "NEW"
for 1 second.
Caution!
All presets from the customer will be lost!!
Disconnect
mains cord
LEAVE SERVICE
TESTPROGRAM
R
9to Exit
EEPROM TEST A test pattern will be sent to the EEPROM.
"PASS" is displayed if the uProcessor read
back the test pattern correctly, otherwise
"FAIL" will be displayed.
Volume Knob
or
Jog Shuttle knob
ROTARY
ENCODER TEST
Display shows value for 2 seconds.
Values increases or decreases in steps of 1
until 0 (Min.) or 40 (Max.) is reached.
STANDBY-ON
Button pressed?
Y
N
Set is in Service PLAY Mode.
The Service Play Mode is intended to
detect and identify the failures in the CD Mode.
In this mode the electronics will still function
even when an error is detected so that
repair activities can be carried out.
SERVICE
PLAY MODE
In case of failures, error
codes according to table 2
will be displayed.
TUNER
Button pressed?
Disconnect
Mains cord ?
Y
N
N
Y
Service frequencies are
copied to the RAM (see Table1)
Tuner works normally
except:
PROGRAM button
Service Mode left
TUNER
TEST
Display Tuner Version
"ccc"
TUNER
Button pressed?
N
Y
PRESET
1
2
3
4
5
6
7
8
9
10
11
Europe
"EUR"
87.5MHz
108MHz
531kHz
1602kHz
558kHz
1494kHz
153kHz
279kHz
198kHz
98MHz
87.5MHz
East Eur.
"EAS"
87.5MHz
108MHz
531kHz
1602kHz
558kHz
1494kHz
87.5MHz
87.5MHz
87.5MHz
87.5MHz
98MHz
USA
"USA"
87.5MHz
108MHz
530kHz
1700kHz
560kHz
1500kHz
98MHz
87.5MHz
87.5MHz
87.5MHz
87.5MHz
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*
Table 1
East Eur. Extended-band
"EAS"
65.81MHz
108MHz
74MHz
87.5MHz
531kHz
1602kHz
558kHz
1494kHz
98MHz
70.01MHz
65.81MHz
Note: * Depending on the selected grid frequency (9 or 10kHz)
By holding the TUNER and R buttons 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.
Y
N
Y
N
Y
N
2;
Button pressed?
2;
Button pressed?
9
Button pressed?
DISPLAY
TEST
Display shows Fig.2
and selected LEDs on
(see note 2)
Display shows Fig. 1
and selected LEDs on
(see note 1)
note 2 : Only DISC 2, 3, AUX, ALB, TITLE,
MUTE, FM, DBB12, TECHNO, JAZZ,
CONCERT & R.C. are on.
note 1 : All LEDs are on except ECO POWER.
Fig. 1 Fig. 2
Table 2
Error code
E1000
E1001
E1002
E1003
E1005
E1006
E1007
E1008
E1020
E1070
E1071
E1079
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.
Sledge In Error
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.
Sledge Out Error
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.
To start service test program
hold P& AUX
depressed while
plugging in the mains cord
Display shows the
ROM version *
"S-Vyy"
(Main menu)
S refers to Service Mode.
V refers to Version.
yy refers to Software version number of µProcessor.
(Counting up from 01 to 99)
SERVICE TEST PROGRAM
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4-1
SET BLOCK DIAGRAM
4-1
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5-1
SET WIRING DIAGRAM
5-1
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FRONT & KEY BOARD
TABLE OF CONTENTS
Internal IC Diagram & Pin Assignment ............................ 6-1
Internal IC Diagram & Pin Description ............................ 6-2
Internal IC Diagram & Pin Description ............................ 6-3
PCB Layout Top View ...................................................... 6-4
PCB Layout Bottom View ................................................ 6-5
Circuit Diagram (MCU Part) ............................................ 6-6
Circuit Diagram (Mic Part) ............................................... 6-7
Electrical Parts List .......................................................... 6-8
6-1
6-1
INTERNAL BLOCK DIAGRAM
MICROCONTROLLER - IC TMP87PS71F
Remark: For Ver. 22, the whole Front Board Ass'y can be orderd with 12nc: 9940 000 01505
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6-2 6-2
PIN DESCRIPTION
MICROCONTROLLER - IC TMP87PS71F
PIN ASSIGNMENT (TOP VIEW)
MICROCONTROLLER - IC TMP87PS71F
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6-3 6-3
INTERNAL BLOCK DIAGRAM
RDS/RBDS DEMODULATOR - IC SAA6581T
BLOCK DIAGRAM
handbook, full pagewidth
57 kHz
8th ORDER
BANDPASS FILTER
CLOCKED
COMPARATOR
RDS/RBDS
DEMODULATOR
SIGNAL QUALITY
DETECTOR
POWER
SUPPLY
AND RESET
TEST
CONTROL
OSCILLATOR
AND CLOCK
MPX
multiplex
input
C1
C6
330 pF
560 pF
4
VDDA
VSSA Vref
+5 V
+5 V
C2
100 nF
C4
47 pF
C5
56 pF
C7
100 nF
C3
2.2 µF
5
6
VSSD
113
TCON
CINSCOUT
15
87
MODE
VDDD
9
OSCI
Q1
OSCO
QUAL
RDDA
RDCL
SYNC
13 14
12
16
10
2
1
MHB899
SAA6581T
PINNING
SYMBOL PIN DESCRIPTION
QUAL 1 signal quality indication output
RDDA 2 RDS data output
Vref 3 reference voltage output (1/2VDDA)
MPX 4 multiplex signal input
VDDA 5 analog supply voltage (5 V)
VSSA 6 analog ground (0 V)
CIN 7 comparator input
SCOUT 8 switched capacitor filter output
MODE 9 oscillator frequency select input
SYNC 10 ARI clamping control input
VSSD 11 digital ground (0 V)
VDDD 12 digital supply voltage (5 V)
OSCI 13 oscillator input
OSCO 14 oscillator output
TCON 15 test control input
RDCL 16 RDS clock output
MHB900
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
QUAL
RDDA
Vref
MPX
VDDA
VSSA
CIN
SCOUT
RDCL
TCON
OSCO
OSCI
VDDD
VSSD
SYNC
MODE
SAA6581T
PIN DESCRIPTION
RDS/RBDS DEMODULATOR - IC SAA6581T
INTERNAL BLOCK DIAGRAM
POSITIVE VOLTAGE REGULATOR - IC KA7805
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