Philips FWC-170 Service manual
Service
Service
Mini System
Service
Service
Service
FWC170/21/22/25
Service Manual
TABLE OF CONTENTS
Location of PCBs & Version variations ......................1-2
Technical Specifications .............................................1-3
Measurement setup....................................................1-4
Service Aids, Safety Instruction, etc...........................1-5
Preparations & Controls .............................................2-1
Disassembly Instructions & Service positions ...........3-1
Service Test Programs ...............................................3-3
Set Block diagram ......................................................4-1
Set Wiring diagram .....................................................5-1
Front & Combi Board..................................................... 6
ECO Power Board .........................................................7
Tape Mechanism............................................................ 9
3CDC-LLC-MCD1 Module........................................... 10
Set Mechanical Exploded view & parts list ................. 11
COMPACT
DIGITAL AUDIO
Page
©
Copyright 2001 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 SL 0342 Service Audio Printed in The Netherlands Subject to modification
Version 1.0
CLASS 1
LASER PRODUCT
GB
3140 785 32770
1-2
LOCATION OF PRINTED CIRCUIT BOARDS
D
R
A
O
B
D
C
FR
BO
ONT
A
RD
ECO POWER BOARD
I B
B
M
O
C
Only for /22/25 versions
D
R
A
O
VERS ION VARIATI ONS:
Type /Versions: FWC170
Features &
Board
in used:
/21 /22
Incredible Surround
Karaoke
News
RDS
Rotary Encoder (volume control)
Jog Shuttle
Voltage Selector x
Aux Input
Digital Outp ut
Headphone So ck et x x
Line Output
Subwoofer Output
Surround Output
Matrix Surround Loudspeakers
Standby - Cloc k Di sp la y x x
Standby - Dar k
ECO Power Standby (Clock Display Off)
ECO6 Tuner Board - System Cenelec
ECO6 Tuner Board - System Non-Cenelec
x
/25
x
x
x
x
x
x
SPECIFICATIONS
%
1-3
GENERAL:
Mains voltag e :
110-127V/220-240V Switchable for /21
230V ± 10% for /22/25
Mains frequency : 50/60Hz /21
Power consumption :
≤ 11W at Standby /22/25
50Hz /22/25
≤ 15W at Standby /21
≤ 0.5W at ECO Standby /22/25
25W Active /21
30W Active /22/25
Clock accura cy : < 4 second s pe r da y
Dimension ce nt re uni t
Weight (w/o speakers) : 4.6Kg
:265 x 310 x 330mm
TUNER:
FM
Tuning range:87.5-108MHz
Grid : 50kHz
IF frequency : 10.7MHz ± 20kHz
Aerial input : 75Ω coaxial
Sensitivit y at 26d B S/ N : < 22µV
Selectivit y at 300 kH z band wi dt h : > 25dB
Image rejection,98MHz : > 40dB /21
> 80dB /22/25
Distortion at RF =1 mV, dev. 75 kH z : < 3%
-3dB Limitin g po in t : < 23.5 µV
Crosstalk at RF= 1m V, dev. 40 kH z : > 18dB
MW
Tuning range : 530-1700kHz /21
:531-1602kHz /22/25
Grid : 10kHz /21
:9kHz /22/25
IF frequency : 450kHz ± 1kHz
Aerial input : Frame aerial, 18.1 µH
Sensitivit y at 26d B S/ N : < 4.4mV/ M
Selectivity at 300kHz bandwidth : > 18dB
IF rejection : > 45dB
Image reject io n : > 28dB
Distortion at RF =5 0m V, m=80% : < 5%
AMPLIFIER:
Output power
1)
:2 x 3.5W ± 1dB
Frequency response wit hi n -3 dB : 50Hz-15kHz
Dynamic Bass Boost : DBB1, DBB2, DBB3, DBB Off
Digital Soun d Co nt ro l : Jazz , Techno, Optimal, Rock
2)
Headphone ou tp ut at 32W : 900mV ± 1dB (max Vol.)
CASSETTE RECORDER:
Frequency response
: 80 - 12500Hz (8dB)
Number of trac k : 2 x 2 stereo
Tape speed : 4.76 cm/sec +2.5/-1.5
Wow and flutter : < 0.35% DIN
Fast-wind/rewind time C60 : 130 sec
Bias system : 75kHz ± 5kHz
Rec/Pb frequency response within 8dB : 80Hz - 10kHz
Signal to nois e ra ti o (A-weighted) :
≥ 48dBA
COMPACT DISC:
Measurement done at output conn. of the CDC module.
Frequency response wit hi n ± 1.5dB: 20Hz - 20kHz
Output level (in Vrms) : 550mV, Z
= 100Ω
out
Signal/Noise ratio (A-weighted) : > 80dBA
Distortion at 1kHz : < 0.003%
Channel unba la nc e at 1kH z : ±1dB
Channel sepa ra ti on at 1k Hz : > 60dB
De-emphasis : 0 or 15/50 mS (Switched by subcode
on the disc)
1)
3Ω, 1 kHz, 10% THD
2)
Frequency response in each setting is software controlled.
2)
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)
DUT
L
R
SBC429 4822 397 30184
S/N and distortion meter
e.g. Sound Technology ST1700B
LEVEL METER
e.g. Sennheiser UPM550
with FF-filter
Recorder
Use Universal Test Cassette CrO2 SBC419 4822 397 30069
or Universal Test Cassette Fe SBC420 4822 397 30071
LF Generator
e.g. PM5110
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
Cassette:
SBC419 Test cassette CrO2................................. 4822 397 30069
SBC420 Test cassette Fe ..................................... 4822 397 30071
MTT150 Dolby level 200nWb/M............................ 4822 397 30271
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
Connector box (1MΩ)............................................ 4822 320 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
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.
PREP ARATIONS AND CONTROLS
Preparations
Rear connections
The type plate is located at the rear of the
system.
A
Po w e 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.
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
● Position the antenna as far as possible from a TV,
VCR or other radiation source
.
R
+
–
L
speaker
(right)
speaker
(left)
FM wire antenna
AM loop
antenna
A
B
C
+
–
AC power cord
VOLTAGE
SELECTOR
110V-
127V
220V-
240V
For user s in the U.K.: please follow the
instructions on page 2-3.
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
(unmark ed) wire to "-".
1
2
● Fully inser t the stripped por tion 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 impedance lower
than the speakers supplied. Please refer to the
SPECIFICATIONS section of this manual.
Inserting batteries into the
remote control
Insert two batteries type R03 or AAA (not
supplied) into the remote control with the
correct polar ity as indicated by the "+" and
"-" symbols inside the batter y 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, so
they should be disposed off properly
.
2-1
PREP ARATIONS AND CONTROLS
£
4
DSC DBB MUTE
2
CD 1/2/3
REPEAT SHUFFLE SLEEP
TUNER
TAPE 1/2
DIM
MUTE
NEWS/TA
á
á
ë
í
Å
É
Ç
VOL
(
)
^
5
%
™
2
8
¡
#
!
$
@
#
%
^
&
STANDBY
ON
ECO
POWER
BAND
TAPE 1 • 2
TUNER TAPE
DIGITAL
SOUND CONTROL
DYNAMIC
BASS BOOST
MASTER VOLUME
PROGRAM
CLOCK•TIMER DIM MODE
PRESETNEXT/
STOP•CLEAR / DEMO STOPPRESET
PREV/
SEARCH•TUNING SEARCH•TUNING
PLAY• PAUSE
1
2
3
4
5
6
7
8
9
0
*
Controls
Controls on the system and
remote control
1
STANDBY ON y
–to switch the system on or to standby mode.
2
TUNER (BAND)
–to select waveband : FM or MW.
TAPE (TAPE 1•2)
–to select tape mode.
3
ECO POWER
–to switch the system on or to Eco Power
standby mode.
4
CD 1/ CD 2/ CD 3 (CD 1/2/3)
–to select disc tray 1, 2 or 3.
5
DSC (DIGITAL SOUND CONTROL)
–to select the desired sound effect :
JAZZ, ROCK, TECHNO or OPTIMAL.
6
OPEN/CLOSE
– to open or close the disc tray.
7
DISC CHANGE
– to change disc(s).
8
DBB (DYNAMIC BASS BOOST)
– to select the desired bass boost level.
9
PROGRAM
for CD ................. to programme disc tracks.
for Tuner ............. to programme preset radio
stations.
for Clock ............ to select 12- or 24-hour clock
mode.
for Timer ............. to select CD programme mode
as the wake up source.
0
Ta pe deck 1 operation
â .......................... to start recording.
É .......................... to start playback.
à / á ............... to rewind or fast forward.
70 ........................ to stop playback/recording or to
open the tape door.
Å .......................... to interr upt playback or
recording.
!
Ta pe deck 2 operation
É .......................... to star t playback.
à / á ............... to rewind or fast forward.
70 ........................ to stop playback or to open the
tape door.
Å .......................... to interr upt playback.
@
CLOCK•TIMER
–to view the clock, set the clock or set the timer.
#
DIM MODE (DIM)
–to select different brightness for the display
screen : DIM 1, DIM 2, DIM 3 or DIM OFF.
$
n
–to connect headphones.
%
MASTER VOLUME (VOL +/-)
–to increase or decrease the volume.
^
Mode Selection
PLAY•PAUSE ÉÅ
for CD ................. to star t or interrupt playback.
for Plug & Play…(on the system only) to initiate
and start plug & play mode.
SEARCH•TUNING àá
for CD ................. to search backward/forward.
for Tuner ............. to tune to a lower or higher
radio frequency.
for Clock ............ (on the system only) to set the
hour.
STOP•CLEAR / DEMO STOP Ç
for CD ................. to stop playback or to clear a
programme.
for Tuner ............. (on the system only) to stop
programming or to erase a
selected preset.
for Demo ........... (on the system only) to activate/
deactivate the demonstration.
for Clock ............ (on the system only) to exit clock
setting or cancel timer.
for Plug & Play…(on the system only) to exit plug
& play mode.
2-2
PREP ARATIONS AND CONTROLS
PREV í / PRESET 4
NEXT ë / PRESET3
for CD ................. to skip to the beginning of the
cur rent, previous, or next track.
for Tuner ............. to select a preset radio station.
for Clock ............(on the system only) to set the
minute.
&
Display screen
–to view the current status of the system.
*
Disc tray
(
REPEAT
–to playback track(s)/disc(s)/programme
repeatedly.
)
SHUFFLE
–to playback all available discs and their tracks/
programme in random order.
¡
MUTE
–to inter rupt or resume sound reproduction.
™
SLEEP
–to activate/deactivate or set the sleep timer .
£
B
–to switch the system to standby mode .
–to switch the system to Eco Power standby
mode .
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 1/2/3 or
TUNER, for example).
– Then select the desir ed function (
É
,
í
,
ë
, fo r e
xample).
Controls
Important notes for users in the
U.K.
Mains plug
This apparatus is fitted with an approved 13
Amp plug. To change a fuse in this type of plug
proceed as follows:
1
Remove fuse cover and fuse.
2
Fix new fuse which should be a BS1362 5 Amp,
A.S.T.A. or BSI approved type.
3
Refit the fuse cover.
If the fitted plug is not suitable for your socket
outlets, it should be cut off and an appropriate
plug fitted in its place.
If the mains plug contains a fuse, this should
have a value of 5 Amp. If a plug without a fuse
is used, the fuse at the distribution board
should not be greater than 5 Amp.
Note: These vered plug must be disposed of to
avoid a possible shock hazard should it be
inserted into a 13 Amp socket else where.
How to connect a plug
The wires in the mains lead are coloured with
the following code: blue = neutral (N),
brown = live (L).
¶ As these colours ma y not cor respond with the
colour mar kings identifying the terminals in
your plug, proceed as follows:
– Connect the blue wire to the terminal
marked N or coloured black.
– Connect the brown wire to the terminal
marked L or coloured red.
– Do not connect either wire to the earth
terminal in the plug, marked E (or e) or
coloured green (or green and yellow).
Before replacing the plug cover, make certain
that the cord grip is clamped over the sheath
of the lead - not simply over the two wires.
Copyright in the U.K.
Recording and playback of material may
require consent. See Copyright Act 1956 and
The Performer’s Protection Acts 1958 to 1972.
Norge
Typeskilt finnes på apparatens underside.
Observer : Nettbryteren er sekunder t
innkoplet. Den innebygde netdelen er
derfor ikke frakoplet nettet så lenge
apparatet er tilsluttet nettkontakten.
For å redusere faren for brann eller elektrisk
støt, skal apparatet ikke utsettes for regn eller
fuktighet.
Italia
DICHIARAZIONE DI CONFORMITA’
Si dichiara che l’apparecchio FW-C717 Philips
risponde alle prescrizioni dell’ar t. 2 comma 1
del D.M. 28 Agosto 1995 n. 548.
Fatto a Eindhoven
Philips Consumer Electronics
Philips, Glaslaan 2
5616 JB Eindhoven, The Netherlands
CAUTION
Use of controls or adjustments or
performance of procedures other than
herein may result in hazar dous
radiation exposure or other unsafe
operation.
2-3
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 a 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 the
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 pla ying a
cleaning tape once.
C
CB
B
A
Demagnetising the heads
¶ Use a demagnetising tape available at your
dealer.
Tr oubleshooting
WARNING
Under no circumstances should you try to repair the system your self, 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 belo w before taking the system for repair. If you
are unable to remedy a problem by following these hints , consult your dealer or service centre.
Problem Solution
CD OPERATION
“NO DISC” 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”.
“DISC NOT FINALIZED” is displayed. – Use a f inalised CD-R(W) or CD-R.
Tr oubleshooting
RADIO RECEPTION
Radio reception is poor. – 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.
TAPE OPERATION/RECORDING
Recording or playback cannot be made. –Clean deck par ts, see “Maintenance”.
–Use only NORMAL (IEC I) tape.
–Apply a piece of adhesive tape over the missing
tab space.
The tape deck door cannot open. – Remo ve and reconnect the AC power plug and
switch on the system again.
GENERAL
The system does not react when buttons – Remove and reconnect the AC power plug and
are pressed. switch on the system again.
Sound cannot be heard or is of poor – Adjust the volume .
quality. –Disconnect the headphones.
– Check that the speakers are connected correctly.
–Check if the stripped speaker wire is clamped.
The left and right sound outputs are –Check the speaker connections and location.
reversed.
The r
emote control does not function
– Select the source (CD or
TUNER, for example)
properly. before pressing the function button (É,í,ë).
– Reduce the distance between the remote control
and the system.
– Insert the batter ies with their polar ities
(+/– signs) aligned as indicated.
– Replace the batter
ies.
–Point the remote control in the direction of the
system’ s IR sensor .
The timer is not working. – Set the clock correctly.
– Press TIMER ON/OFF to switch on the timer.
–If recording is in progress, stop recording.
Not all lighted buttons are showing light. – Press DISPLAY to select NORMAL or MODE 1
display mode .
The Clock/Timer setting is erased. –Power has been interrupted or the power cord
has been disconnected. Reset the clock/timer .
The system displays features – Press and hold DEMO STOP Çon the system
automatically and buttons start flashing. to switch off the demonstra
tion.
MAINTENANCE AND TROUBLESHOOTING
2-4
DISMANTLING INSTRUCTIONS
Dismantling of the Lens Cassette
1) Uncatch 4 catches along the edge of the Cassette door
(pos 5) as shown in figure 1 and 2 to remove the Lens
cassette (pos 2).
3-1 3-1
Figure 2: Left Cassette door
Figure 1
Dismantling the 3CDC Module
1) Loosen the 4 screws, slide Cover top (pos 30) towards the
rear and remove it upwards.
2) Loosen 3 screws slide the Panel right (pos 26) towards the
rear and remove it outwards. Do likewise for the Panel left
(pos 27).
3) Push the gear slowly towards the front as shown in figure
Figure 4
Dismantling of the Panel Rear
3 until the CDC tray starts to move out of the Front Cabinet
(pos 8). The CDC tray is now disengage and can be pulled
out completely.
1) Loosen 6 screws C on the Panel rear (pos 24).
2) Press the 2 catches C1 inwards and dismantle the Panel
rear by pulling it towards the rear.
4) Remove the Cover Tray (pos 29) as shown in figure 4.
5) Loosen 4 screws A to remove the CDC Module (pos 28) as
shown in figure 3.
A
A
A
C1
2
Pull Rear
Panel out
Turn the Gear towards the Front
till the CDC Tray starts to open
1
Press Inwards
Figure 3
Figure 5
3-2
Dismantling of the Front Panel and Bottom Panel assembly
1) Remove 8 screws D mounting the Front board.
2) Remove 1 screw E supporting the bracket, Combi board
(pos 33) to the Panel front (pos 8).
3) Remove 1 screw F (see figure 5) mounting the Mains
transformer body to the Panel Bottom (pos 25).
Note: Care must be taken not to damage the board
because of the heavy Mains transformer.
3-2
Service pos A
4) The Front and Combi boards together with the Mains
transformer can now be remove.
5) Loosen 6 screws G and eject both cassette doors to
remove the Tape mechanism (pos 12).
Note: During re-assembly of the Tape mechanism
and Front board care must be taken to ensure
the wires are properly dressed and not touching any moving parts on the Tape mechanism.
Figure 6
Figure 8
Figure 7
Note: After re-assembly, it is very important to ensure the
wires from the Tape mechanism are routed properly
to ensure that they do not touch/obstruct all moving
parts.
Service pos B
3-3
3-3
SERVICE TEST PROGRAM
TUNER
TEST
TUNER
Button pressed?
Y
Display Tuner Version
"ccc"
N
copied to the RAM (see Table1)
N
PRESET
1
2
3
4
5
6
7
8
9
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
108MHz
531kHz
1602kHz
558kHz
1494kHz
87.5MHz
87.5MHz
87.5MHz
87.5MHz
98MHz
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.
N
East Eur. Extended-band
"EAS"
65.81MHz
108MHz
74MHz
87.5MHz
531kHz
1602kHz
558kHz
1494kHz
98MHz
70.01MHz
65.81MHz
Table 1
To start service test program
plugging in the mains cord
Display shows the
QUARTZ
TEST
O
Button pressed?
Y
Display shows
32K
Output at (Front Board)
pin 80 of uP = 2048Hz
O
Button pressed?
Y
Display shows
8M
Output at (Front Board)
pin 80 of uP = 1,953.125Hz
9
Button pressed?
Y
Note: During the 3CDC tray may "jerks" open
& close or the carousel may rotates
slightly. This is due to sharing of control
lines during the Service test program.
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
N
N
N
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*
hold P & TAPE
depressed while
ROM version *
"S-Vyy"
(Main menu)
S refers to Service Mode.
V refers to Version.
yy refers to Software version number of Processor.
(Counting up from 01 to 99)
SERVICE
PLAY MODE
STANDBY-ON
Button pressed?
Y
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
even when an error is detected so that
repair activities can be carried out.
Error code
E1000
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.
E1001
E1002
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.
E1003
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.
E1005
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.
E1006
E1007
E1008
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.
E1020
E1070
E1071
E1079
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.
N
note 1 : JAZZ & TECHNO are on while OPTIMAL is off, other LEDs status
are not important (applicable only for sets with LEDs)
Figure 1
note 2 : OPTIMAL is on while JAZZ & TECHNO are off, other LEDs status
are not important (applicable only for sets with LEDs)
Figure 2
Table 2
Mini 2002 FW-C1xx, C2xx, C3xx Dated: wk141
DISPLAY
TEST
DIM
Button pressed?
Y
Display shows Fig. 1
and selected LEDs on
(see note 1)
DIM
Button pressed?
Y
Display shows Fig. 2
and selected LEDs on
(see note 2)
9
Button pressed?
Y
TEST
Activated with
EEPROM TEST A test pattern will be sent to the EEPROM.
9 to Exit
ROTARY
ENCODER TEST
LEAVE SERVICE
TESTPROGRAM
Volume Knob
Jog Shuttle knob
Disconnect
mains cord
N
N
N
Various
other Tests
ACTION
R
QEEPROM FORMAT Load default data. Display shows "NEW"
or
DBBDEMO
"PASS" is displayed if the uProcessor read
back the test pattern correctly, otherwise
"FAIL" will be displayed.
for 1 second.
Caution!
All presets from the customer will be lost!!
Display shows value for 2 seconds.
Values increases or decreases in steps of 1
until 0 (Min.) or 40 (Max.) is reached.
DEMO will toggle on or off.
The message: "DEMO ON" or "DEMO OFF"
will scroll across the display to show the
new status of the set.
BLOCK DIAGRAM
4-1
4-1
FW-C155 Block diagram dd wk142-5
SET WIRING DIAGRAM
5-1
5-1
FWC170 Wiring Diagram
FTD DISPLAY PIN CONNECTIONS
6-16-1
COMBI & FRONT BOARDS
e
f
h
g
r
(2G - 9G)
1G
a
j
k
m
n
p
d
2G
b
Col 1
c
Dp
3G
11G
B5
B4
B3
B2
B1
4G
5G
6G
12G 11G
B10
B9
B8
B7
B6
7G
8G
B5
B4
B3
B2
B1
(12G)
B13
B12
B11
(11G)
9G
10G
B10
B9
B8
B7
B6
B5
B4
B3
B2
B1
TABLE OF CONTENTS
FTD Display pin connection .......................................... 6-1
Tape Adjustment & Mesurement ................................... 6-2
Tuner Adjustment T able................................................. 6-2
Combi part Component Layout ..................................... 6-3
Combi part SMD Layout ................................................6-4
Tuner Circuit ..................................................................6-5
Supply & Power Amplifier Circuit...................................6-6
Tape Circuit .................................................................... 6-7
Front Circuit ...................................................................6-8
Front part SMD Layout ..................................................6-9
Front part Component Layout ..................................... 6-10
TDA7468 & TMP87CN71 Internal Block diagram....... 6-11
Electrical parts list........................................................ 6-11
P1
P2
P3
P4
P5
P6
P7
P8
P9
P10
P11
P12
P13
12G
B1
B2
B3
B4
B5
-
(1)
(2)
(3)
11G
B1
B2
B3
B4
B5
B6
B7
B8
B9
B10
B11
B12
B13
10G
(Left)
(Middle)
(Right)
(Up)
(Low)
9G
a
h
j , p
k
b
f
m
g
c
e
r
n
d
8G
a
h
j , p
k
b
f
m
g
c
e
r
n
d
a
h
j , p
k
b
m
g
c
e
n
d
6G
a
h
j , p
k
b
f
f
m
g
c
e
r
r
n
d
5G
a
h
j , p
k
b
f
m
g
c
e
r
n
d
4G
a
h
j , p
k
b
f
m
g
c
e
r
n
d
3G
a
h
j , p
k
b
f
m
g
c
e
r
n
d
2G
a
h
j , p
k
b
f
m
g
c
e
r
n
d
1G7G
P14
P15
P16
FTD DISPLAY PIN NO.
FUNCTION
-
-
-
12
-
-
-
1
9
8
7
6
P
P
P
P
13
14
15
16
2
5
4
3
F
-
P
-
1
-
-
-
-
3
3
8
9
-
F
2
-
3
3
3
3
5
4
6
7
1
2
-
G
G
-
-
-
3
3
3
2
3
1
4
3
5
G
G
G
Col
Dp
-
3
2
2
2
0
6
G
2
9
8
7
6
7
8
9
10
G
G
G
G
11
-
-
-
2
2
2
2
2
5
3
4
-
-
12
G
G
-
-
-
2
1
2
1
1
8
0
9
-
P
P
P
3
1
2
-
-
-
1
1
1
1
6
4
7
5
P
P
P
P
5
7
4
6
-
-
-
1
1
1
1
3
2
1
0
P
P
P
P
8
9
10
11
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