Copyright 2002 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 KC 0201 Service AudioPrinted in The NetherlandsSubject to modification
Version 1.0
LASER PRODUCT
GB
3139 785 30021
LOCATION OF PC BOARDS
FRONT
BOARD
MAINS
BOARD
(/21/22 O
MTF
BOARD
1-2
CD BOARD
nly)
TRAFO
SEC.
BOARD
TRAFO
PRI.
BOARD
COMBI BOARD
VERSION VARIATIONS:
Type /Versions:FW-C255
Features &
/21/21M/30/33/37
Board in used:
Karaokexxx
News
RDS
Incredible Surround
Rotary Encoder (volume control)xxxxx
Jog Shuttlexxxxx
Voltage Selectorxx
Aux Inputxxxxx
Digital Output
Headphone Socketxxxxx
Line Output
Subwoofer Output
Surround Output
Matrix Surround Loudspeakers
Standby - FTD Clock Displayxxxxx
ECO Standby - Dark
Combi - Non-Cenelec Tunerxxxxx
Combi - Cenelec Tuner
SPECIFICATIONS
GENERAL:
Mains voltage : 110-127V/220-240V Switchable for /21/21M
120V for /37
230-240V for /30
Mains frequency: 50/60Hz
Power consumption : < 70W Active
< 15W at Standby /37
< 20W at Standby /21/21M/30
Clock accuracy: < 4 seconds per day
Dimension centre unit : 265 x 310 x 365mm
TUNER:
FM
Tuning range: 87.5-108MHz
Grid: 50kHz
100kHz for /21/21M/37
IF frequency: 10.7MHz ± 20kHz
Aerial input: 75Ω coaxial
300Ω click fit for /37
Sensitivity at 26dB S/N: < 7µV
Selectivity at 600kHz bandwidth: > 25dB
IF rejection: > 60dB
Image rejection: > 25dB
Distortion at RF=1mV, dev. 75kHz: < 3%
Number of track: 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 - 12.5kHz
Signal to noise ratio Type I : > 48dBA
COMPACT DISC:
Measurement done at output conn. of the CDC module.
Frequency response within ± 1.5dB: 20Hz - 20kHz
Output level (in Vrms):550mV ± 2dB, R
Signal/Noise ratio (A-weighted): > 80dBA
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)
{....} Values for /21/21M only
1)
6Ω, 1kHz, 10% THD
2)
6Ω, 60Hz-12.5kHz, 10% THD
3)
Frequency response in each setting is software controlled.
= 100Ω
out
MW
Tuning range: 531-1602kHz
530-1700kHz for /21/21M/37
Grid: 9kHz
10kHz for /21/21M/37
IF frequency: 450kHz ± 1kHz
Aerial input: Frame aerial
Sensitivity at 26dB S/N: < 4.4mV/M
Selectivity at 18kHz bandwidth: > 18dB
IF rejection: > 45dB
Image rejection: > 28dB
Distortion at RF=50mV, m=80%: < 5%
AMPLIFIER:
Output power: 2 x 40W
2 x 33W
1)
RMS /21/21M/30
2)
FTC /37
Frequency response within -3dB: 50Hz-15kHz
Dynamic Bass Boost: DBB ON, DBB 1, DBB 2, DBB 3
Digital Sound Control: Jazz, Techno, Optimal, Rock
3)
Headphone output at 32Ω: 15mW ± 2dB
Input sensitivity, R
= 600Ω
S
Aux / CDR : 500mV / 1.0V
Mic : {3.5mV}
3)
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 FeSBC420 4822 397 30071
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!
DKAdvarse !
Usynlig laserstråling ved åbning når sikkerhedsafbrydere er
ude af funktion. Undgå udsaettelse for stråling.
DISMANTLING INSTRUCTIONS
2-12-1
Dismantling the 3CDC Module
1) Loosen the 4 screws, slide Cover top (pos 253) towards
the rear and remove it upwards.
2) Loosen 3 screws slide the Panel right (pos 252) towards
the rear and remove it outwards. Do likewise for the Panel
left (pos 251).
3) Push the gear slowly towards the front as shown in figure
2 until the CDC tray starts to move out of the Front Cabinet
(pos 101). The CDC tray is now disengage and can be
pulled out completely.
4) Remove the Cover Tray (pos 105) as shown in figure 2.
5) Loosen 4 screws A to remove the CDC Module (pos 1 104)
as shown in figure 2.
A
A
A
Turn the Gear towards the Front
till the CDC Tray starts to open
Dismantling of the Front Panel assembly
1) Loosen 2 screws below the Front Panel (pos 101) mounting
it to the Bottom plate (pos 227).
2) Release the 2 catches on the sides of the Front Panel to
separate it from the Bottom plate.
3) Remove the Volume and Jog Rotary knob if the Front
board needs to be dismantled. For Karaoke versions, the
Karaoke knob (pos 133) also need to be removed.
4) Loosen 8 screws B to remove the Front board as shown in
Figure 5.
5) Loosen 6 screws C and eject both cassette doors to
remove the T ape mechanism (pos 1103) as shown in figure
6.
Note: The Cassette door can be removed only after
the removal of the Tape mechanism and buttons.
Figure 1
Dismantling of the Volume & Jog Rotary knobs
1) Cut a piece of packaging tape approximately 5cm width by
12cm length and tape its narrow side on to the top and
bottom side of the Volume knob (pos 132) as shown in
figure 3.
Figure 2
Figure 5
2) Place a small screw driver in between the tape & knob (see
figure 3) to give more leverage in pulling out the knob as
shown in figure 4.
3) Do likewise for the Jog Rotary knob (pos 131). You may
have to rotate the knob to provide the most exposed area
during application of the packaging tape.
Figure 3
Figure 6
Figure 4
Dismantling of the Cassette door Lenses
1) Loosen the Lens Cassette Strip Left Top (pos 163) by
pushing it towards the inside as indicated in Figure 7 and
remove it by using a minus screw driver force it out as
indicated in Figure 8.
Push in this
direction
Push in this
direction
2-2
2) Remove the Lens Cassette Left (pos 161) by pushing it
towards the inside as indicated in Figure 7. Be careful not
to damage or break the catch A.
3) Do likewise for the right Cassette Door Lens (pos 160 and
162).
Use a minus screw
driver to push the Lens
in the direction shown
Catch A
2-2
Service pos A
Figure 7
Dismantling of the Bottom & Rear Panel assembly
1) Loosen 5 screws D mounting the Combi board to the Rear
Panel (pos 254) as shown in figure 9.
2) Loosen 3 screws E and release the 2 catches on the sides
of the Rear Panel to separate it from the Bottom plate (pos
227).
3) Loosen 4 screws G to remove the Mains Transformer.
5) Loosen 2 screws F to remove the Combi Board.
Figure 8
Service pos B
Note: After re-assembly, it is very important to ensure all
wires are routed properly to ensure that they do not
touch/obstruct all moving parts.
The 3CDC Module can be complete detached while
repair the other portion of the set.
Figure 9
Figure 10
3-1
3-1
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
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
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 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 TESTA test pattern will be sent to the EEPROM.
This assembly drawing shows a summary of all possible versions. For components used in a specific version see schematic diagram and respective parts list.
6-26-2
3139 118 3461 pt 1 dd wk149
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.