Philips AJ-3950 User manual

CLASS 1
LASER PRODUCT
GB 3140 785 22570Published by SS 0109 ServiceAudio
or otherwise without the prior permission of Philips.
system or transmitted, in any form or by any means, electronic, mechanical, photocopying,
All rights reserved. No part of this publication may be reproduced, stored in a retrieval
Copyright 1995 Philips Consumer Electroncis B.V. Eindhoven, The Netherlands
be used.
condition and that parts which are identical with those specified
Safety regulations require that the set be restored to its original
C
PCS 107 248
Printed in The Netherlands Copyright reserved Subject to modification
CD Clock Radio
TABLE OF CONTENTS
chapter
Handling chip components and safety 1 - 1
.............................
Technical Specification & Service Tools 2 - 1
..........................
Service Measurement 2 - 2
..................................................
Connections & Controls 3 - 1
................................................
Disassembly Diagram 4 - 1
...................................................
Instructions for use 3 - 2 to 3 - 4
.................................................
CD Service Test Program 4 - 2 to 4 - 3
........................................
Block Diagram 5 - 1
.............................................................
Wiring Diagram 6 - 1
...........................................................
circuit diagram 7 - 1
.......................................................
MAIN BOARD (Part 1)
layout diagram 7 - 2
.......................................................
circuit diagram 8 - 1
.......................................................
MAIN BOARD (Part 2)
layout diagram 8 - 2
.......................................................
chapter
circuit diagram 9 - 1
.......................................................
TUNER BOARD
layout diagram 9 - 2
.......................................................
layout diagram 10 - 1
......................................................
CD MODULE
circuit diagram 10 - 2
......................................................
cabinet 11 - 1
.................................................................
EXPLODED VIEWS DIAGRAM
Mechanical partslist 11 - 1
.....................................................
Electrical partslist 12 - 1 to 12 - 5
...............................................
AJ3950
all versions

HANDLING CHIP COMPONENTS 1-1
PCS 104 437
© WARNING
All ICs and many other semiconductors 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 wristband with
resistance. Keep components and tools at this potential.
f ATTENTION
Tous les IC et beaucoup d ´autres semi-conducteurs sont
sensibles aux d écharges statiques (ESD). Leur long évite
pourrait être consid érablement écourt ée par le fait qu ´aucune
précaution n ést prise à leur manipulation.
Lors de r éparations, s ´assurer de bien être reli é au m ême
potentiel que la masse de l ´appareil et enfileer le bracelet
serti d ´une r ésistance de s écurit é.
Veiller à ce que les composants ainsi que les outils que l ´on
utilise soient également à ce potentiel.
d WARNUNG
Alle ICs und viele andere Halbleiter sind empfindlich
gegen über elektrostatischen Entladungen (ESD).
Unsorgf ältige Behandlung im Reparaturfall kann die
Lebensdauer drastisch reduzieren.
Sorgen Sie daf ür, da ß Sie im Reparaturfall über ein Puls-
armband mit Widerstand mit dem Massepotential des
Gerätes verbunden sind.
Halten Sie Bauteile und Hilfsmittel ebenfalls auf diesem
Potential.
ñ WAARSCHUWING
Alle IC ´s en vele andere halfgeleiders zijn gevoelig voor
electrostatische ontladingen (ESD).
Onzorgvuldig behandelen tijdens reparatie kan de levensduur
drastisch doen vermindern. Zorg ervoor dat u tijdens reparat ie
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 scar iche
statiche (ESD).
La loro longevit à potrebbe essere fortemente ridatta in caso di
non osservazione della pi ù grande cauzione alla loro
manipolazione. Durante le riparationi occorre quindi essere
collegato allo stesso potenziale che quello della massa
delápparecchio tramite un braccialetto a resistenza.
Assicurarsi che i componenti e anche gli utensili con quali si
lavora siano anche a questo potenziale.
©
Safety regulations require that the set be restored to its
original condition and that parts which are identical with
those specified be used.
Safety components are marked by the symbol
i
Le norme di sicurezza estigono che l ´apparecchio venga
rimesso nelle condizioni originali e che siano utilizzati i
pezzi di ricambiago identici a quelli specificati.
Componenty di sicurezza sono marcati con
ñ
Veiligheidsbepalingen vereisen, dat het apparaat in zijn
oorspronkeliijke toestand wordt teruggebracht en dat
onderdelen, identiek aan de gespecificeerde, worden toegepas t.
De Veiligheidsonderdelen zijn aangeduid met het symbool
sVarning !
Osynlig laserstr ålning n är apparaten är öppnad och
spärren är urkopplad. Betrakta ej str ålen.
∂Advarsel !
Usynlig laserstr åling ved åbning n år sikkerhedsafbrydere
er ude af funktion. Undg å udsaettelse for str åling.
ßVaroitus !
Avatussa laitteessa ja suojalukituksen ohitettaessa olet alt tiina
näkymättömälle laseris äteilylle. Älä katso s äteeseen !
f
"Pour votre s écurite, ces documents doivent être utilis és par
des sp écialistes agr éés, seuls habilit és à réparer votre
appareil en panne".
ESD
SAFETY
d
Bei jeder Reparatur sind die geltenden Sicherheitsvor-
schriften zu beachten. Der Originalzustand des Ger ätes
darf nicht ver ändert werden. F ür Reparaturen sind Original-
ersatzteile zu verwenden.
Sicherheitsbauteile sind durch das Symbol markiert.
f
Les normes de s écurit é exigent que l`appareil soit remis
à l`état d`origine et que soient utilis ées les pi èces de
rechange identiques à celles sp écifiées.
Les composants de s écurit é sont marqu és
CLASS 1
LASER PRODUCT
© DANGER : Invisible laser radiation when open.
©
After servicing and before returning the set to customer
perform a leakage current measurement test from all
exposed metal parts to earth ground, to assure no
shock hazard exists.
The leakage current must not exceed 0.5mA.
AVOID DIRECT EXPOSURE TO BEAM.

PCS 107 249
2-1
SERVICE TOOLS
Audio signal disc SBC 429.......................................................................4822 397 30184
Playability test disc SBC 444...................................................................4822 397 30245
Test disc 5 (disc without errors ) +
Test disc 5A (disc with dropout errors, black spots and fingerprints)
SBC 426/426A.....................................................................4822 397 30096
Burn in test disc (65 min. 1kHz signal at -30 dB level without “pause”).....4822 397 30155
Universal test cassette Fe SBC 420........................................................4822 397 30071
TECHNICAL SPECIFICATIONS
GENERAL
Mains voltage -/00 : 220 - 230 V
-/17 : 120v
Mains frequency -/00 : 50 Hz
-/17 : 60 Hz
Battery mains : 4.5 V
Power consumption max. : 17 W
standby : 3.4 W
Dimension (W x H x D) : 170 x 190 x 190 mm
Weight : 2.1 Kg
AMPLIFIER
Output power mains : 2 x 0.8 W
Speaker impedance : 2 x 8 ohm
Frequency response : 100 Hz - 10 kHz (±4dB)
TUNER - FM SECTION
Tuning range : 87.5 - 108 MHz
IF frequency : 10.7 MHz ± 0.3 MHz
Sensitivity : 3 µV at 26dB S/N
Selectivity : 24 dB at 300kHz
IF rejection : 55 dB
Image rejection : 26 dB
TUNER - AM SECTION
Tuning range MW : 526.5 – 1606.5 kHz
-/17 : 520 - 1722 kHz
IF frequency : 468 kHz ± 3 kHz
Sensitivity MW : 69 dBµV/m at 26dB S/N
Selectivity M W : 20 dB
IF rejection MW : 28 dB
Image rejection MW : 32 dB
COMPACT DISC
Frequency response : 125 Hz - 10 kHz
S/N ratio : 60 dB
Channel difference 1 kHz : 2 dB
Channel crosstalk 1 kHz : 40 dB
Laser wavelength : 780 ± 20 nm
Laser light power : < 0.5 mW

PCS 107 250
3-1
CONNECTIONS AND CONTROLS
3 2 1
6 5 4 7 8 9 0
% 8 ^ # $ @ !
()*&&
CONTROLS
•CD PLAYER 1STOP 9
- stops CD playback; - stops sleep function in CD mode; - stops the active CD alarm for 24 hours.
2PLAY/ PAUSE 2;
- starts/ pauses CD playback.
3SEARCH ∞, §
- skips CD tracks/ searches for a particular
passage.
•GENERAL 4SLEEP
- activates and adjusts the sleep time.
5REPEAT ALARM/ BRIGHTNESS CONTROL
- changes the brightness of the display
illumination;
- switches off the alarm for a 9 minute period; - stops sleep function in CD, buzzer or radio mode.
6WEEKEND-SLEEPER
- deactivates alarm 1 and/ or 2 for the weekend.
7Display
- shows the clock/ alarm time and status of the
set.
8ALARM 1 MODE/ OFF or ALARM 2 MODE/ OFF
- sets/ reviews/ switches off alarm 1 or 2.
•RADIO 9ON/ OFF
- switches the radio on/ off; - stops sleep function in radio mode; - stops the active radio alarm for 24 hours.
0FM/ AM (MW)
- selects the radio waveband.
•SETTING TIMES !ALARM 1,ALARM 2,TIME
- sets the respective alarm or clock time
@7, 8
- adjusts clock/ alarm times; - adjusts the gentle wake minimum and maximum
volume level for alarm 1 or 2;
- selects a CD wake up track for alarm 1 or 2.
#VOLUME $, 3
- adjusts the sound level.
$Frequency indicator
- shows the radio frequency of your selected
waveband
%SET DAY
- sets the day for weekend sleeper activation.
^24 HR RESET
- stops the active buzzer, radio or CD alarms for
24 hours.
&LIFT TO OPEN
- opens/ closes CD door.
*TUNING
- tunes to a radio station.
(Pigtail
- aerial to improve FM reception.
)Mains lead
- for AC mains supply.
The type plate is located on the bottom of the set. CAUTION Use of controls or adjustments or performance of procedures other than herein may result in hazardous radiation exposure or other unsafe operation.
INSTALLATION Mains Supply and Demo mode 1Check if the power voltage, shown on the type
plate on the bottom of the set, corresponds to your local mains supply. If it does not, consult your dealer or service centre.
2Connect the mains plug into the wall socket. The
mains supply is now switched on and the display will show the PHILIPS demo mode. ™PH..IL..IPS scrolls across the display
continuously.
• Press any control (with the exception of
REPEAT ALARM/ BRIGHTNESS CONTROL on the set)
to exit the demo mode.
3To disconnect the set completely from the mains
supply, withdraw the mains plug from the wall socket.
Standby power consumption (clock mode)......3 W
T
I
M
E
-
A
L
A
R
M
S
E
T
PM
SLEEP
RADIO
FM
SETDAY
RADIO
VOLUME
ON
OFF
1
2
AM
FM
Z
Z
WEEKEND-
SLEEPER
MODE/OFF
ALARM 1
IOOOIOIIOIOOI
ALARM2
MODE/OFF
SLEEP
BRIGHTNESS CONTROL
REPEATALARM
AJ3950COMPACT DISCCLOCK RADIO
A
L
A
R
M
1
T
I
M
E
A
L
A
R
M
2
SEARCH
PLAY/PAUSE
STOP
F
M
8
8
•
9
3
•
9
8
•
1
0
4
•
1
0
8
M
h
z
M
W
5
3
0
6
3
0
8
5
0
1
2
0
0
1
6
0
0
k
H
z

INSTRUCTIONS FOR USE 3-2
PCS 107 251
MEMORY BACKUP The memory backup conveniently allows your day, alarm and clock time settings to be stored for up to 3 minutes when there is a mains interruption e.g. AC mains failure. The complete CD clock radio and illumination will be switched off. As soon as the mains supply returns, the display will indicate the correct time. • If mains supply returns after 3 minutes, the display
will show the PHILIPS demo mode and you will need to re-enter the day, alarm and clock times.
BASIC FEATURES Illumination brightness • Press REPEAT ALARM/ BRIGHTNES CONTROL once
or more. ™The brightness of the display will change in this
sequence: LOW ?MEDIUM ?BRIGHT ?LOW...
Volume Press VOLUME $or 3to adjust the volume level.
The volume level UO: is indicated as a number from
0-32.
SETTING THE CLOCK AND ALARM TIMES The time is displayed using the 24 hour clock. 1Press TIME, ALARM 1 or ALARM 2 briefly until
the respective clock or alarm time display flashes.
2Press and hold down 7, 8to adjust both the hours
and minutes.
• By pressing 7or 8respectively, the time increases/
decreases rapidly and continuously from minutes to hours. Release 7or 8when you have reached the
correct setting.
• If you need to adjust the time slowly, minute by
minute, press 7or 8briefly and repeatedly.
3Press TIME, ALARM 1 or ALARM 2 to confirm
your respective time setting.
SETTING THE DAY Setting the day enables you to set the WEEKEND- SLEEPER function. If you attempt to use the WEEKEND-SLEEPER prior to setting the day (Monday to Sunday, 1-7) will show briefly in the display to remind you to set the day first. 1Press SET DAY. 2While the day display is shown, press SET DAY
again once or more to select the day numbered from dAY 1-7 (Monday-Sunday): ™The display will revert to show the clock time.
CD PLAYBACK 1To open the CD door, lift at the edge marked
LIFT TO OPEN.
2Insert a CD with the printed side facing up, and
close the door.
3Press PLAY/ PAUSE 2;to start playback.
™The CD indicator , Cd:-- and the total
number of tracks are shown, followed by the first track number before returning to clock time.
– door is shown if you have not closed the CD
door/ open the CD door during playback.
– noCd is shown if no CD has been inserted/
inserted incorrectly.
– nFCd is shown if the CD-R(W) is non-finalized
– Err indicates a general error in operation of
the set.
™The display returns to clock time.
4Adjust the sound with VOLUME $or 3.
5To interrupt, press PLAY/ PAUSE 2;.
• The current track number shows briefly before
returning to clock time. flashes during pause.
6Press PLAY/ PAUSE 2; again to resume
playback.
7Press STOP 9to stop playback.
™The display returns to clock time.
CD
CD
Selecting a different track during playback The track number appears briefly in the display when you press SEARCH ∞or §to skip tracks. • Press SEARCH §once or more to skip to the next
track(s).
• Press SEARCH ∞more than once to skip to
previous tracks.
• Press SEARCH ∞once and playback will return to
the beginning of the current track.
Finding a passage within a track 1During playback, press and hold down
SEARCH ∞or §. ™The CD is played at high speed and low volume;
the display will show Cd: and your current track number.
2Release SEARCH ∞or §when you recognize
the passage you want. ™Normal CD playback and standby clock time
resumes.
RADIO 1Press ON/ OFF to switch on the radio.
™tu is displayed briefly followed by the clock
time , and the last selected waveband.
2Press FM/ AM if you wish to change waveband.
3Adjust the sound using VOLUME $or 3. 4Adjust the TUNING wheel to tune to a radio
station.
To improve reception: FM: Extend pigtail at the back of the set fully for optimum reception. AM (MW): uses a built-in aerial. Direct the antenna by adjusting the position of your set. 5Press ON/ OFF to switch off the radio.
™and the waveband disappear from
the display.
SETTING THE ALARM OPTIONS General Two different alarm times, ALARM 1 or 2can be set
in the CD, radio or buzzer modes. This can be useful when for example you need to be woken up at a different time during the week and at the weekend. - Remember to first set the DAY, clock and alarm
time functions correctly!
- Make sure your selected alarm symbol is shown. Viewing the Alarm Mode Options 1Select your choice of alarm mode by pressing
ALARM 1 or ALARM 2 MODE/ OFF once or more
to find your respective mode. ™The alarm mode display sequence is shown: – Lo:00 – default volume level for start of
gentle wake alarm
– H1:16 – default maximum volume level for
gentle wake alarm
– Followed by the 3 different alarms:
(buzzer) kAL, or (radio) mtu, or
CD mode with CD and a track number 1-99.
2Read the following chapters to adjust or select the
respective modes.
Adjusting the Gentle Wake Volume A sure way of getting up in the mornings, the gentle wake volume for the alarm begins from gentle volume e.g Lo:00 (low) and gradually increases to a higher volume e.g. H1:11. The default volume range is Lo:00 and H1:16. If
you wish to change the default volume for the buzzer, radio or CD alarm: 1In the standby mode, press ALARM 1 MODE/ OFF
or ALARM 2 MODE/ OFF once.
2As soon as Lo:00 appears, press 7or 8once or
more to adjust the starting volume of your alarm.
3To set the maximum volume for your alarm, press
ALARM 1 MODE/ OFF or ALARM 2 MODE/ OFF again to change to the H1:16 display.
4As soon as H1:16 appears, press 7or 8until you
reach the desired volume level (10-32).
Notes: • The H1 volume is always greater or equal to the
RADIO
RADIO

PCS 107 252
3-3
INSTRUCTIONS FOR USE
Lo volume: e.g.i. Lo:15,H1:19
e.g.ii. Lo:12,H1:12
• The starting volume is Lo:00, with a possible
low volume range 00-32, and the maximum volume is H1:32, with a possible high volume range10-32.
• The gentle wake volume settings do not affect
normal CD and radio playback volume level.
• It is not possible to review the gentle wake volume
range during the active alarm call as pressing ALARM 1 MODE/ OFF or ALARM 2 MODE/ OFF
cancels the alarm completely.
• During the alarm call, if you press 7or 8the high
volume stops increasing immediately.
Selecting Buzzer or Radio Alarm • Press ALARM 1 MODE/ OFF or ALARM 2 MODE/
OFF repeatedly until the (buzzer) kAL or
(radio) mtu display is shown.
Note: If you have selected the radio alarm mtu, make sure you have tuned properly to a station. CD Alarm Mode: Selecting a CD track You can program and select a CD track number between 1-99, when the set is in the standby or radio playback mode. However, if the track number programmed does not exist on your CD, the CD will start playback from the first track during the alarm call. 1Insert a CD into the CD compartment. 2Press ALARM 1 MODE/ OFF or
ALARM 2 MODE/ OFF repeatedly until the CD and track number display is shown. See figure 3.
3As soon as the CD alarm display appears,
press 7or 8until the desired track number is
shown. ™The display returns to standby clock time.
4To review your programmed track number, press
ALARM 1 MODE/ OFF or ALARM 2 MODE/ OFF
again repeatedly until the CD alarm display is shown.
Note: • The buzzer alarm option will automatically replace
the CD alarm if you have:
– inserted a CD incorrectly; – inserted a damaged CD; – forgotten to insert any CD; – not closed the CD door properly.
SWITCHING OFF THE ALARM There are three ways of switching off the alarm. Unless you cancel the alarm completely, the 24 HOUR ALARM RESET will be automatically selected after 59 minutes, from the time your alarm time first goes off.
24 HOUR ALARM RESET
If you want the alarm mode to be stopped immediately but also wish to retain the same alarm setting for the following day: • Press from 3 possible options according to your
selected alarm: a 24 HR RESET to switch off the buzzer, radio or
CD alarms
b STOP 9CD alarm only
c ON/ OFF radio alarm only. ™You will hear a beep tone confirming 24 hour
reset activation.
CANCELING THE ALARM COMPLETELY
To cancel the set alarm time before it goes off, or during the alarm call: • Press ALARM 1 MODE/ OFF or ALARM 2 MODE/
OFF once or more until the selected alarm indicator disappears from the display. ™If you cancel the alarm during the alarm call, you
will also hear a beep tone confirming the alarm has been cancelled.
REPEAT ALARM
This will repeat your alarm call at 9-minute intervals. • During the alarm call,
press REPEAT ALARM/ BRIGHTNESS CONTROL.
• Repeat if desired up to an hour. Notes:
• The selected alarm mode k, m, or indicators will
flash throughout the repeat alarm duration.
• If you are using the CD alarm mode, CD playback
resumes at the point interrupted by the repeat alarm.
• During the CD alarm, CD playback continues for up
to an hour unless you cancel/ reset the alarm.
WEEKEND-SLEEPER This feature deactivates the alarm every Saturday and Sunday and resumes the alarm function Monday to Friday. Make sure, however, that you have set the day first. • See chapter on SETTING THE DAY. 1Press WEEKEND-SLEEPER once or more until ZZ
appears for one or both alarms.
2To cancel the weekend-sleeper function repeat
step 1 until ZZdisappears from the display. See figure 4.
SLEEP About Sleep The CD clock radio has a built-in sleep timer which enables the set to be automatically switched off during radio or CD playback after a set period of time. There are four sleep times before the set turns itself off: 10, 30, 60, 90 minutes and off. The sleep function does not affect the operation of your alarm settings. Setting Sleep 1Press PLAY/ PAUSE 2;(CD) or ON/ OFF (radio) to
switch on the respective mode.
• For the CD mode, make sure you have inserted a
disc first.
2Select your sleep time by pressing SLEEP once or
more until the desired sleep time is shown. See figure 5
3To cancel the sleep function you can either: – press SLEEP once or more untily
disappears from the display
– press REPEAT ALARM/ BRIGHTNESS CONTROL
– press STOP 9(CD only)
– press ON/ OFF (radio only).
MAINTENANCE General (See figure 6) • If you do not intend to use the CD clock radio for a
long time, withdraw the power plug from the wall outlet.
• Do not expose the set or CDs to humidity, rain,
sand or excessive heat caused by heating equipment or direct sunlight.
• To clean the set, use a soft, slightly dampened
chamois leather. Do not use any cleaning agents containing alcohol, ammonia, benzene or abrasives as these may harm the housing.
CD player and CD handling • The lens of the CD player should never be touched! • Sudden changes in the surrounding temperature
can cause condensation to form and the lens of your CD player to cloud over. Playing a CD is then not possible. Do not attempt to clean the lens but leave the set in a warm environment until the moisture evaporates.
• Always shut the CD door to keep the CD
compartment dust-free. To clean, dust the compartment with a soft dry cloth.
• To take a CD out of its box, press the centre
spindle while lifting the CD. Always pick up the CD by the edge and replace the CD in its box after use to avoid scratching and dust.
• To clean the CD, wipe in a straight line from the
centre towards the edge using a soft, lint-free cloth. Do not use cleaning agents as they may damage the disc.
• Never write on a CD or attach any stickers to it. Environmental information All unnecessary packaging material has been omitted to make the packaging easy to separate into three materials: cardboard (box), expandable polystyrene (buffer), polyethylene (bags, protective foam). Your set consists of materials which can be recycled if disassembled by a specialized company. Please observe local regulations on the disposal of packing materials and old equipment.
SLEEP

INSTRUCTIONS FOR USE 3-4
PCS 107 253
Problem Possible Cause - Remedy No sound Volume not adjusted - Adjust the volume No reaction to any operation of the buttons Electrostatic discharge - Disconnect the set from the power supply and
reconnect the set after 5 minutes
•CD PLAYER CD playback does not work CD badly scratched or dirty - Replace/ clean CD Laser lens steamed up - Wait until lens has acclimatized Laser lens dirty - Clean lens by playing a CD lens cleaning disc CD-R(W) is non-finalized - Use a finalized CD-R(W)
•RADIO Occasional crackling sound during
FM broadcast Weak signal - Extend pigtail fully Continuous crackling/ hiss disturbance during AM (MW) broadcast Electrical interference from TVs, computers, fluorescent lamps, etc. - Move set away from other electrical equipment •ALARM The alarm does not function Alarm time not set - See chapter on SETTING THE CLOCK AND ALARM
TIMES
Alarm mode not selected - See chapter on SETTING THE ALARM OPTIONS Volume too low for radio/ CD/ buzzer alarm mode. - See chapter on Adjusting the Gentle wake volume •WEEKEND-SLEEPER WEEKEND-SLEEPER does not function Day selection not set/ incorrect - See chapter on SETTING THE DAY WEEKEND-SLEEPER not set - Set WEEKEND-SLEEPER This product complies with the radio interference requirements of the European Union.
TROUBLESHOOTING If a fault occurs, first check the points listed below before taking the set for repair. If you are unable to remedy a problem by following these hints, consult your dealer or service centre WARNING: Do not open the set as there is a risk of electric shock! Under no circumstances should you try to repair the set yourself, as this will invalidate the guarantee.

DISASSEMBLY DIAGRAM 4-1 4-1
PCS 107 254
A. To remove Rear Cabinet
B. To remove Speaker Frame
C. To remove CD Tray and Middle Bracket
D. To remove Middle Bracket
E. To remove Main Board
F. To remove Repeat Alarm Key

CD SERVICE TEST PROGRAM 4-2 4-2
PCS 107 255
STOP button pressed in any step returns
to begin of Service Testprogram.
ALARM 1 button
pressed?
STOP button
pressed?
N
Y
Y
Y
Display shows all
segments and flags.
see figure 1
DISPLAY TEST CD SERVO TEST
Display shows
version number
of the µP - software.
PLAY button
pressed?
Display shows
SLEEP button
pressed? NEXT button pressed? PREV. button pressed? 24 HR RESET
button pressed? SET DAY button
pressed?
Slide moves
outside as long as
button is held
depressed.
Slide moves
inside as long as
button is held
depressed.
Y Y Y Y Y
N N N N N
FOCUS found?
Y
N
Display shows
objective moves up&down
disc motor for 160ms "on"
STOP button
pressed?
Y
N
Display shows
disc motor turns.
FOCUS search
SLIDE test DISC MOTOR test
To enter Service
Testprogramm hold
BAND & PLAY buttons
depressed while power
up the set.
fig. 1
*
*
*
To leave Service Testprogram switch mode switch
to off-position.
Door switch is ignored Æ CD door can be opened.
Slide servo, Radial servo, Focus servo, Disc motor
and Laser are switched off.
Mute is switched on via decoder IC.
*Volume up/down buttons function independentely
of the service testprogram.
N
N
CD TEST
Disc motor turns
clockwise
as long as button
is held depressed.
(accelerate)
Disc motor turns
counter clockwise
as long as button
is held depressed.
(brake)
noFo
01
r001
SET DAY button
pressed?
Y
N
Display shows
AL
Buzzer is turn on.
STOP button
pressed?
N
Y
BUZZER TEST
Fo
WEEKEND SLEEPER
button pressed?
Y
N
Enable
CD-RW mode
and shows
FM flag.
For entering the Factory and Service mode keep BAND and NEXT keys pressed while power up (plug-in) the set.
The set will enter CD repeat all mode.
For entering the Factory and Service mode keep BAND and PREV keys pressed while power up (plug-in) the set.
The set will enter CD repeat one mode.

4-3 4-3
PCS 99 458
Abbreviations and Pin-description of CD Ics
SERVO PROCESSOR SAA7325H
SYMBOL PIN DESCRIPTION
HFREF 1comparator common mode input
HFIN 2comparator signal input
ISLICE 3 current feedback output from data slicer
VSSA1 4(1) analog ground 1
VDDA1 5(1) analog supply voltage 1
Iref 6reference current output pin
VRIN 7reference voltage for servo ADC's
D1 8unipolar current input (central diode signal input)
D2 9unipolar current input (central diode signal input)
D3 10 unipolar current input (central diode signal input)
D4 11 unipolar current input (central diode signal input)
R1 12 unipolar current input (satellite diode signal input)
R2 13 unipolar current input (satellite diode signal input)
VSSA2 14(1) analog ground 2
CROUT 15 crystal/resonator output
CRIN 16 crystal/resonator input
VDDA2 17(1) analog supply voltage 2
LN 18 DAC left channel differential output - negative
LP 19 DAC left channel differential output - positive
Vneg 20 DAC negative reference input
Vpos 21 DAC positive reference input
RN 22 DAC right channel differential output - negative
RP 23 DAC right channel differential output - positive
SELPLL 24 selects whether internal clock multiplier PLL is used
TEST1 25 test control input 1; this pin should be tied LOW
CL16 26 16.9344 MHz system clock output
DATA 27 serial d4(1)ata output (3-state)
WCLK 28 word clock output (3-state)
SCLK 29 serial bit clock output (3-state)
EF 30 C2 error flag output (3-state)
TEST2 31 test control input 2; this pin should be tied LOW
KILL 32 kill output (programmable; open-drain)
VSSD1 33(1) digital ground 2
V2/V3 34 versatile I/O: input versatile pin 2 or output versatile pin 3 (open-drain)
WCLI 35 word clock iutput (for data loopback to DAC)
SDI 36 serial data input (for data loopback to DAC)
SCLI 37 serial bit clock input (for data loopback to DAC)
RESET 38 power-on reset input (active LOW)
SDA 39 microcontroller interface data I/O line (open-drain output)
SCL 40 microcontroller interface clock line input
Abbreviations and Pin-description of CD Ics
SERVO PROCESSOR SAA7325H
SYMBOL PIN DESCRIPTION
RAB 41 microcontroller interface R/W and load control line input (4-wire bus mode)
SILD 42 microcontroller interface R/W and load control line input (4-wire bus mode)
STATUS 43 servo interrupt request line/decoder status register output (open-drain)
TEST3 44 test control input 3; this pin should be tied LOW
RCK 45 subcode clock input
SUB 46 P-to-W subcode bits output (3-state)
SFSY 47 subcode frame sync output (3-state)
SBSY 48 subcode block sync output (3-state)
CL11/4 49 11.2896 MHz or 4.2336 MHz (for microcontroller) clock output
VSSD2 50(1) digital ground 3
DOBM 51 bi-phase mark output (externally buffered; 3-state)
VDDD1(P) 52(1) digital supply voltage 2 for periphery
CFLG 53 correction flag output (open-drain)
RA 54 radial actuator output
FO 55 focus actuator output
SL 56 sledge control output
VDDD2(C) 57(1) digital supply voltage 3 for core
VSSD3 58(1) digital ground 4
MOTO1 59 motor output 1; versatile (3-state)
MOTO2 60 motor output 2; versatile (3-state)
V4 61 versatile output pin 4
V5 62 versatile output pin 5
V1 63 versatile intput pin 1
LDON 64 laser drive on output (open-drain)
Note : All supply pins must be connected to the same external power supply voltage.

BLOCK DIAGRAM 5-1 5-1
PCS 107 256

WIRING DIAGRAM 6-1 6-1
PCS 107 257

MAIN BOARD (Part 1) - CIRCUIT DIAGRAM 7-1 7-1
PCS 107 258

MAIN BOARD (Component Side View) - LAYOUT DIAGRAM
7-2 7-2
PCS 107 259
CD KEYBOARD - LAYOUT DIAGRAM
KEYBOARD - LAYOUT DIAGRAM
KEYBOARD (TOP) - LAYOUT DIAGRAM
LED BOARD - LAYOUT DIAGRAM

MAIN BOARD (Part 2) - CIRCUIT DIAGRAM 8-1 8-1
PCS 107 260

MAIN BOARD (Copper Side View) - LAYOUT DIAGRAM POWER BOARD - LAYOUT DIAGRAM
CD DOOR SWITCH - LAYOUT DIAGRAM
8-2 8-2
PCS 107 261

A
B
C
2
1
3
TUNER BOARD ATM5 - CIRCUIT DIAGRAM 9-1 9-1
PCS 107 262
OSC
AM
IF
SWITCH
AM/FM
INDIC CONV
V-I
STEREO
MONO/
MATRIX
MUTE/
PILOT
PRESENCE
SELECTOR
AM FM
FM
IF2 FM DET
AM
FRONT
AM
OSC
AM
MIX AM DET
FM
FRONT FM MIX FM IF1 PHASE DET VCO/ DIV
STABILIZER
CTRL SDS/
DET
AGC
FM
20p
1 2 3 4 5 11 12
1 2 3
Provisional
FM : 87.0(+/-0.5) ... 108.5(+/-0.5) MHz
11 12
A
B
C
D
E
F
G
2117 C10
2118 B10
2119 C9
2120 G8
2121 A8
2122 B8
A
B
C
D
E
3110 C10
3113 G9
3114 C2
3120 A10
3121 A9
F
G
1001 A4
1104 E3
1110 B11
2101 A4
2102 A4
2103 D4
2104 G7
2105 A5
2106 F10
2108 C3
2109 C3
2110 D2
2112 D11
2113 F8
5108 F7
5111 E4
6101 A2
6102 A3
7101 B5
7102 A9
6 7 8 9 10
T003 A3
T004 B11
T005 C11
T006 E9
T007 B11
4 5 6 7 8 9 10
AM
PVC TOP VIEW
C2 FMrf
C1 FMosc
18p2108
2114 G8
2115 G7
2116 C9
R
ON OFF
BAND +FM
AM : 520(+/-10) ... 1730(+/-20) KHz
3101 A9
3102 B9
3104 A8
3108 D11
3109 C10
*
Provisional
L
C4 AMrf
C3 AMosc
5100 A3
5101 A5
5102 G3
5104 C4
5105 D3
5106 F5
5107a A6
FERRITE ONLYFRAME ONLY
7mm PACK
6
4
5107b A7
5107c A7
3114
15n
BOTTOM VIEW
FERRITE BAR
FRAME LOOP
PAD1
9018 A2
9020 E3
9021 F3
T001 E4
T002 B3
PAD2
22n
15n
T008 C11
T009 B11
T010 F8
T012 G2
T013 F2
9020
9021
5111
5102
USA OSC
2116
2119
22n
+FM
B+
GND
FM
Lo
Hi
*
B
EC
All SMD Transistors
Top View from
Solder Side
1
2
3
1104
2118
1u
*
2119
2108
20p
USA
OSC
3114
820R
2109
2p2
2104
10u
2117
1u
3120
100K
T010
3121
22K
2105
24p
9021
9020
2
FM-ANT 4
FM-OSC
5
MT1 6 MT2
27
VCO|AM-FM-S
25 VP
12 VSTABA
VSTABB8
WF420
2106
1AM-ANT
3AM-OSC
23 FM-OSC
16
FM-RFI
21
FM-RFO
6 IFGND
26
IND
31
LPF-M|S
29
MPXI
32
MUTE
NC
1
4
PILFIL
17 RFGND
19 RIPPLE
30ST-LED
22
SUBGND
2AF-LO
3AF-RO
28
AFO
20
AGC|AFC
15
AM-IF1I
10
AM-IF2I|O
14
AM-MIX
24 AM-OSC
18 AM-RFI
5
FM-DEM
11
FM-IF1I
9
FM-IF1O
7
FM-IF2I
13
FM-MIX
5101
7101
TEA5711T
2112
47u
3T5
T013
3113
150K
T012
1110
FE-BT-VK-N
1
2
3
4
5
T009
6102
BAS216
6101
BAS216
3102
68K
500R
3101
3108
33R
2122 470n
3104
2K2
9018
8p2
2110
2
34
6
78
7M4A522A
5108BLACK
1
5106WHITE
1
2
34
6
78
1001
1
7M4A545N
5102
1
4n7
2101
*
2116
47p
2102
330p 2114
1104
XH-S
1
2
220n
2113
34
6
78
5111
ORANGE
1
2
3110
100K
3109
100K
10u
2103
T004
T006
T005
T002
T001
1
5100
T003
2115
4u7
100MHZ
5104
5107c
3
O
SFE10.7MS2
230KHz
5107b
2
G
1
I
3
O
CDA10.7MC1
SFE10.7MS3
180KHz
5107a
2
G
1
I
8
2120
1u
5105
RED
1
2
3 4
6
7
7102
BC847B
2121
1u
T008
T007
VSTABB
VSTABB
VSTABB
Vp
Vp
VSTABA
VSTABA
AM-OSC
FM-OSC
FM-RF
AM-RF
AM-RF
AM-OSC
FM-RF
FM-OSC
VSTABA
AM-RF

9-2 9-2
PCS 107 263
TUNER BOARD ATM5 - LAYOUT DIAGRAM
FM/MW versions
Input FrequencyWaverange Input Set tuned to Adjust Measure on Scope / Counter
OSCILLATOR
FM - RF
VCO
AM -RF
AM - IF
FM
87,5 - 108 MHz
MW
525 - 1607 kHz
(530 - 1710 kHz) 1)
87,35 MHz
512 kHz
(520 kHz)
1635 kHz
(1730 kHz)
108,25 MHz
lower band end
upper band end
FM
87,5 - 108 MHz
87,5 MHz
108 MHz 108 MHz 2106 C2
5101
AM
468 kHz 5106
5108
FM 98 MHz 98 MHz 3101 152 ±1 kHz
lower band end
upper band end
2106 C1
2106 C3
5104
5105
MW
560 kHz
1500 kHz 2106 C4
5111560 kHz
1500 kHz
connect pin 24 of
IC 7101 (AM Osc)
with short wire to
ground
1) for USA /17
see
remark 2)
2) RC-network serves for damping the IF-filter while adjusting the other one.
A1 2
1 2
Df = ±500kHz
VRF = 100µV
C
Df = ±30kHz
VRF = 100µV
fo
fo
max.
symmetric
or
A1
3
2
Df = ±500kHz
VRF = 10µV
A
continuous
wave
VRF = 1 mV
or
C1 2
Df = ±15kHz
VRF = 10mV
or
or
1 2
B
Df = ±30kHz
VRF as low as
possible
fo
max.
symmetric
or
max.
Vcc
7101
pin 30
2k2
4k7
220R
100nF
10
IC 7101
220R
100nF
14
IC 7101
repeat
TUNER ADJUSTMENT TABLE
87,5 MHz
1001 E1 2122 D6
1104 A2 3101 E6
1110 F6 5101 C1
2103 D2 5102 B3
2104 D1 5104 D5
2105 C2 5105 C6
2106 C3 5106 G2
2108 B5 5107a F3
2109 B5 5107b F4
2110 B6 5107c F4
2112 E5 5108 G3
2113 D6 5111 B1
2115 F5 5112 B2
2117 F5 9018 F1
2118 G6 9020 A2
2120 C6 9021 A1
2121 E6 9027 D5
2101 F6 3121 F1
2102 E7 6101 G7
2114 E3 6102 G7
2116 F3 7101 E5
2119 G3 7102 F2
3102 E1 9010 F7
3104 E2 9011 E7
3108 E3 9012 F3
3109 F2 9013 F1
3110 G2 9015 E4
3113 D2 9017 E6
3114 D4 9026 E3
3120 F2 9028 G6

3415.4
99-05-21
3415.4
99-05-21
CD99 DA11 - LAYOUT DIAGRAM 10-1 10-1
PCS 104 487
2701 B4
2702 A2
2703 A2
2704 A2
2803 D2
2804 D2
2805 D2
2806 E1
2807 D2
2808 D2
2809 D1
2810 C1
2811 C2
2812 C1
2813 C2
2814 D2
2815 C2
2816 C2
2818 D2
2819 E4
2820 E3
2821 D4
2822 D4
2824 D4
2825 D4
2826 F5
2827 C5
2828 C4
2829 A4
2830 B3
2831 B3
2832 B2
2833 H4
2834 B2
2835 H3
2837 B2
2838 B5
2839 A5
2841 E2
2843 E4
2844 E3
2845 E4
2847 F5
2848 F4
2849 F3
2850 F4
2852 F5
2853 E5
2856 D5
2860 E3
2861 E2
2862 E2
2863 D2
2864 D2
2865 D2
2869 F1
2870 E3
2871 E3
2872 E3
2873 D3
2874 D3
2875 D3
3701 B4
3702 B4
3703 B5
3704 A2
3705 A3
3728 E5
3745 B3
3757 B3
3788 C5
3800 F1
3801 G2
3802 G2
3803 G1
3804 G1
3805 G1
3806 G1
3807 F1
3808 F2
3809 F1
3811 D1
3812 D1
3813 D2
3814 D1
3815 D1
3816 D1
3817 C2
3818 C1
3819 D1
3820 C1
3821 C1
3822 C1
3823 C2
3824 C2
3825 C2
3826 D3
3827 D2
3828 E4
3829 D5
3830 D4
3831 F5
3832 F5
3834 D5
3835 C4
3836 C5
3837 C4
3838 C4
3839 C4
3840 B4
3841 B4
3842 A3
3843 A3
3844 A3
3845 C3
3846 A3
3847 B3
3848 B2
3849 H4
3850 H4
3851 B3
3852 B2
3853 H3
3854 H3
3856 B3
3857 B3
3858 A5
3859 C2
3860 B2
3861 B2
3862 B2
3864 E1
3865 E1
3867 E4
3868 E4
3869 E4
3870 F4
3871 E4
3872 F5
3873 E4
3874 E4
3875 F3
3876 F4
3877 F4
3878 F4
3879 F5
3880 F5
3881 E5
3882 F4
3883 F3
3884 E3
3885 B5
3886 C5
3887 B5
3888 C5
3889 D5
3890 D2
3891 E2
3892 D2
3893 D2
3894 E3
3895 E2
3896 E2
3897 D2
3898 D2
3899 D2
3900 D4
4801 E5
4802 F2
4804 D4
4805 E4
4806 D5
4807 E2
4808 D5
4809 D5
4810 B2
4812 B4
4813 B3
4814 B3
4815 A4
4823 C2
4824 B2
4828 B2
4831 B3
4832 B3
4838 C5
4845 D2
4847 E1
4848 B4
4850 G5
4853 F2
4856 F5
4857 B4
4859 B5
4863 C5
4865 A4
4866 B4
4872 F2
4877 H5
4881 G5
4884 E2
4885 G5
4886 G1
4888 F2
4889 G1
6877 F5
7800 C4
7802 C2
7803 F1
7804 G2
7807 D1
7810 F4
7875 F5
1800 F2
1801 A5
1810 D3
1821 E5
1822 A2
1823 G5
1824 D5
2801 F1
2802 E1
2817 D2
2823 E4
2836 G5
2840 A4
2842 C1
2846 E4
2851 G4
2854 F3
2855 E3
2857 E5
3750 B2
3751 B2
3810 E1
3855 G5
3863 A4
5802 A2
5803 E5
7808 G4
7809 A5
8401 H3
8402 H5
This assembly drawing shows a summary
of all possible versions.
For components used in a specific version
see schematic diagram respectively partslist. CD99 Layout stage .4 990817
CD99 Board copper side view
1 2 3 4 5
1 2 3 4 5
A
B
C
D
E
F
G
H
A
B
C
D
E
F
G
H
This assembly drawing shows a summary
of all possible versions.
For components used in a specific version
see schematic diagram respectively partslist. CD99 Layout stage .4 990817
CD99 Board component side view
1 2 3 4 5
1 2 3 4 5
A
B
C
D
E
F
G
H
A
B
C
D
E
F
G
H
5802
2840
2842
2817
1810
2846
2 14
1
1 3
15 2802
2801
1800
7808
3855
2851
16
1
9
8
1
1
1
1 6
15
6 2
17
6 2 16 9
8
3
6
3
47
8
1822
3750
1824
3810
2855
2854
1823
2836
1821
2823
5803
2857
3751
3863
7809
1801