Philips MCD-280 Service manual
version 1.0
MCD280
© 3141 785 30090
Service Manual
DVD Micro System
all versions
Published by SL 0439 Service Audio Printed in The Netherlands Subject to modification
©
Copyright 2004 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.
Handling chip components ............................................................1-1
Technical specification...................................................................2-1
Service tools..................................................................................2-1
Service measurement setup..........................................................2-2
Connections and controls......................................................3-1...3-4
Pin-description of ICs.....................................................................3-5
Disassembly diagram ....................................................................4-1
Set block diagram..........................................................................5-1
Set wiring diagram.........................................................................5-2
DISPLAY BOARD
circuit diagram ..........................................................................6-1
layout diagram..........................................................................6-2
KEY BOARD & POWER BOARD & MICPHONE BOARD
circuit diagram ..........................................................................7-1
layout diagram..........................................................................7-1
MPEG BOARD
circuit diagram..................................................................8-1...8-4
layout diagram..................................................................8-5...8-6
TAPE BOARD
circuit diagram ..........................................................................9-1
layout diagram..........................................................................9-2
COMBI BOARD
circuit diagram..............................................................10-1...10-2
layout diagram..............................................................10-3...10-4
Exploded view diagram .....................................................11-1...11-2
Mechanical partslist.....................................................................11-2
Electrical partslist...............................................................12-1...12-2
TABLE OF CONTENTS
CLASS 1
LASER PRODUCT
1 - 1
HANDLING CHIP COMPONENTS
© 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 dcharges statiques (ESD). Leur longvite
pourrait tre considrablement courte par le fait qu«aucune
prcaution nst prise leur manipulation.
Lors de rparations, s«assurer de bien tre reli au mme
potentiel que la masse de l«appareil et enfileer le bracelet
serti d«une rsistance de scurit.
Veiller ce que les composants ainsi que les outils que l«on
utilise soient galement ce potentiel.
d WARNUNG
Alle ICs und viele andere Halbleiter sind empfindlich
gegenber elektrostatischen Entladungen (ESD).
Unsorgfltige Behandlung im Reparaturfall kann die
Lebensdauer drastisch reduzieren.
Sorgen Sie dafr, da§ Sie im Reparaturfall ber ein Pulsarmband mit Widerstand mit dem Massepotential des
Gertes 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 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 longevit potrebbe essere fortemente ridatta in caso di
non osservazione della pi grande cauzione alla loro
manipolazione. Durante le riparationi occorre quindi essere
collegato allo stesso potenziale che quello della massa
delpparecchio 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 toegepast.
De Veiligheidsonderdelen zijn aangeduid met het symbool
s Varning !
Osynlig laserstrlning nr apparaten r ppnad och
sprren r urkopplad. Betrakta ej strlen.
∂ Advarsel !
Usynlig laserstrling ved bning nr sikkerhedsafbrydere
er ude af funktion. Undg udsaettelse for strling.
ß Varoitus !
Avatussa laitteessa ja suojalukituksen ohitettaessa olet alttiina
nkymttmlle laseristeilylle. l katso steeseen !
f
"Pour votre scurite, ces documents doivent tre utiliss par
des spcialistes agrs, seuls habilits rparer votre
appareil en panne".
ESD
SAFETY
d
Bei jeder Reparatur sind die geltenden Sicherheitsvorschriften zu beachten. Der Originalzustand des Gertes
darf nicht verndert werden. Fr Reparaturen sind Originalersatzteile zu verwenden.
Sicherheitsbauteile sind durch das Symbol markiert.
f
Les normes de scurit exigent que l‘appareil soit remis
l‘tat d‘origine et que soient utilises les pices de
rechange identiques celles spcifies.
Les composants de scurit sont marqus
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.
HANDLING CHIP COMPONENTS
2 - 1
TECHNICAL SPECIFICATIONS
GENERAL
Mains voltage -/21M : 120 / 230 V
-/30
-/30
::240 V
Mains frequency
50 Hz
-/21M
: 50 / 60 Hz
Battery
remote
:3 V (R6 x 2)
Power consumption
normal : 30 W
Standby
:< 2 W
Dimension (W x H x D)
: 140 x 220 x 265 mm
Weight
: 3.25 Kg
AMPLIFIER
Output power mains : 2 x 10 W
Speaker impedance
:2 x 8 ohm
Frequency response
: 63 Hz - 16 kHz (±3dB)
TUNER - FM SECTION
Tuning range : 87.5 - 108 MHz
IF frequency
: 10.7 MHz ± 0.02 MHz
Sensitivity
:< 22 dBf at 26dB
Selectivity
300kHz : > 33 dB
IF Rejection
:> 60 dB
Image Rejection
:> 20 dB
Channel separation
1kHz : 30 dB
TUNER - AM SECTION
Tuning range : 531 - 1602 kHz
530 - 1700 kHz for /21
IF frequency
450 kHz ± 1 kHz
Sensitivity
:
≤ 3.25 mV/m at 26dB
:
Selectivity S9/300kHz
:> 20 dB
:
IF rejection
:> 24 dB
Spurious rejection
:< 28 dB
:
Image rejection
:< 28 dB
AUDIO CASSETTE RECORDER
Frequency response -8dB : 80 - 12.5 kHz
Wow & flutter : < 0.4 % (DIN)
Tape speed : 4.76 cm/s
Channel difference at PB : 0 dB
P/B S/N ( A wght.)
R/P S/N (A wght.)
: 55 dB
: 48 dB
COMPACT DISC
Frequency response : 20 Hz – 20 kHz
S/N ratio (A-wght.) : 70 dBA
THD+N 1kHz : 0.5 %
Channel Separation 1kHz : 40 dB (Lim.30dB)
Channel unbalance : < ±2dB
VIDEO PERFORMANCE
Amplitude output : 1.0 Vpp (+10/-10%)
S/N luminance : ≥ 48 dB
Video bandwidth : 6 MHz
Chroma/Luminance delay : ≤ 80ns
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
anti-static table mat
large 1200x650x1.25mm 4822 466 10953
small 600x650x1.25m 4822 466 10958
anti-static wristband
4822 395 10223
connection box (3 press stud connections, 1MΩ) 4822 320 11307
extendible cable (2m, 2MΩ, to connect wristband to connection box) 4822 320 11305
connecting cable (3m, 2MΩ, to connect table mat to connection box) 4822 320 11306
earth cable (1MΩ, to connect any product to mat or to connection box) 4822 320 11308
KIT ESD3 (combining all 6 prior products - small table mat) 4822 310 10671
wristband tester 4822 344 13999
AVAILABLE ESD PROTECTION EQUIPMENT
2 - 2
SERVICE MEASUREMENT
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
Tuner SW
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).
Ri=50Ω
Aerial replacement
Capacitor
R=50Ω
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.
RF Generator
e.g. PM5326
Ri=50Ω
Low pass filter 22kHz
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.P.F. = 13
th
order filter 4822 395 30204
3 - 1
CONNECTION AND CONTROLS
1
2
3
ª
4
•
§
5
6
709
8
£
¡™()*&^
@#$
!
%
&
%
*
^
$!0
1
26345
@
!
#
6
7
7
9
8
3 - 2
CONNECTION AND CONTROLS
Rear connections
The type plate is located at the rear of the
system.
A Powe r
Before connecting the AC power cord to the
wall outlet, ensure that the following are done;
– If your system is equipped with a
Voltage Selector, set the VOLTAGE
SELECTOR to the local power line
voltage.
– 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.
Front
( right )
speaker
Connections
VIEWING AREA
( left )
Front
speaker
Step 1: Placing speakers
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).
Connect the supplied MW loop antenna and FM
antenna to the respective terminals. Adjust the
B Antennas Connection
antenna
MW loop
Place the front left and right speakers at equal
position of the antenna for optimal reception.
MW Antenna
distances from the TV set and at an angle of
approximately 45 degrees from the listening
position.
Notes:
–To avoid magnetic interference, do not position
the front speakers too close to your TV set.
– Allow adequate ventilation around the DVD
System.
Position the antenna as far as possible from a TV,
VCR or other radiation source.
FM Antenna
~V042
~V721
1-01
For better FM stereo reception, connect an
outdoor FM antenna to the FM AERIAL (FM
ANTENNA) terminal.
022
-
antenna
Television
(left)
-L++R
SUBWOOFER OUT
-
SPEAKER
IN
L
R
IN
Y
Cr
Cb
AM
aerial
AUX in
RL
LINE OUT
B
Y
S-VIDEO OUTVIDEO OUT
Pb/Cb
COMPONENT VIDEO OUT
Pr/Cr
DIGITAL OUT
A
(right)
AC power cord
~V042
~V721
022
-
1-01
A
3 - 3
CONNECTION AND CONTROLS
g
Y
S-VIDEO OUTVIDEO OUT
Connections
Pb/Cb
COMPONENT VIDEO OUT
Pr/Cr
DIGITAL OUT
AM
aerial
AUX in
RL
SUBWOOFER OUT
LINE OUT
IMPORTANT!
– If the picture is distorted, check the
Video Output setting. Make sure it is set
AM
aerial
AUX in
RL
SUBWOOFER OUT
LINE OUT
Y
S-VIDEO OUTVIDEO OUT
Pb/Cb
COMPONENT VIDEO OUT
Pr/Cr
DIGITAL OUT
IMPORTANT!
–To set the VIDEO OUT (put) to ‘Cr Cb
Y’, (see Setting video preference).
AM
aerial
AUX in
RL
SUBWOOFER OUT
LINE OUT
Y
S-VIDEO OUTVIDEO OUT
Pb/Cb
COMPONENT VIDEO OUT
Pr/Cr
DIGITAL OUT
Using S-Video In jack
to ‘S-Video’. (See Setting video
preference).
Using component Video In jack (Cr Cb
Use the S-Video cable (not supplied) to connect
the system’s S-VIDEO OUT jack to the S-
Y)
Use the component video cables (red/blue/
green) to connect the system’s Cr Cb Y jacks to
the corresponding Component video input jacks
Video input jack (or labeled as Y/C or S-VHS) on
the TV 0
on the TV set.
Step 3: Connecting TV set
(left)
speaker
-L++R
-
SUBWOOFER OUT
(right)
speaker
Step 2: Connecting speakers
Connections
SPEAKER
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 “–”. Fully insert the stripped
portion of the speaker wire into the terminal as
shown.
+
Grey
–––-
Black
Speakers
Front Left (L)
Front Right (R)
IMPORTANT!
Grey
Black
–You only need to make one video
connection from the following options,
according to the capabilities of your TV
system.
Notes:
–For optimal sound performance, use the
supplied speakers.
– Component Video connection
provides higher picture quality. These
options must be available on your TV set.
– 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
– Connect the system directly to the TV
Using Video In jack (CVBS)
set.
Use the composite video cable (yellow) to
connect the system’s VIDEO OUT jack to the
video input jack (or labeled as A/V In, Video In,
Composite or Baseband) on the TV set.
the SPECIFICATIONS section of this manual.
IMPORTANT!
The type plate is located on the rear of
the system.
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
it.
the system cool down before reusin
3 - 4
Pr/Cr
Pb/Cb
Y
S-VIDEO OUTVIDEO OUT
DIGITAL OUT
AUX in
RL
LINE OUT
COMPONENT VIDEO OUT
AM
aerial
CONNECTION AND CONTROLS
j
-L+
+R-
SPEAKER
Power Outlet
Connections
cord
Step 6: Connecting the power
Step 5: Connecting Digital out
~ AC MAINS
Pr/Cr
Pb/Cb
Y
VIDEO IN
COMPONENT
IN
VIDEO IN
S-VIDEO
OUT
AUDIO
Never make or change any connection
with the power switched on.
After every is connected properly, plug in the AC
power cord to the power outlet.
IMPORTANT!
DIGITAL IN
IMPORTANT!
To select ALL or PCM 48 KHz for Digital
Out, please see Setting Digital Out.
Digital out selecion enables you to specify the
type of digital output suitable for our amplifier or
receiver.
Select ALL if you have connected the digital
output to a multifunctional decoder receiver.
Select PCM 48K if the external component is
incapable of processing 96KHz digital signal input,
and then convert the standard signal with the
sampling rate of 48KHz.
Step 4: Connecting the
Connections
)
Subwoofer
subwoofer (not
supplied
CH3 CH4
AUDIO IN
R L
IN
VIDEO
TO TVANT IN
RF coaxial cable to TV
SUBWOOFER OUT
4
(example only)
Back of RF Modulator
Antenna or
Cable TV signal
speaker
speaker
(left)
-L++R
-
R
SPEAKER
(right)
IMPORTANT!
Ensure that the speaker cables are
correctly connected. Improper
connections may damage the system due
to short circuit.
Do not connect speakers with an
impedance lower than that of the
speakers supplied.
Place the subwoofer on the floor near the TV.
Connect the subwoofer to the SUBWOOFER
OUT jack on the DVD micro system.
Connect the power cable for the subwoofer.
ack.
Y
S-VIDEO OUTVIDEO OUT
Pb/Cb
COMPONENT VIDEO OUT
Pr/Cr
DIGITAL OUT
IMPORTANT!
– If your TV set only has a single
Antenna In jack (or labeled as 75 ohm or
RF In), you will need a RF modulator in
order to view the DVD playback via TV.
See your electronics retailer or contact
Philips for details on RF modulator
Using an accessory RF modulator
availability and operations.
Use the composite cable (yellow) to connect the
system’s CVBS jack to the video input jack on
Use the RF coaxial cable (not supplied) to
connect the RF modulator to your TV’s RF
the RF modulator.
3 - 53 - 5
PIN ASSIGNMENTS FOR 48-LEAD TSOP
Y- D e coder
I/O Buffers and Data Latches
360 ILL B1.2
Address Buffer & Latches
X-Decoder
DQ15 - DQ
0
Memory Address
OE#
CE#
WE#
SuperFlash
Memory
Control Logic
FUNCTIONAL BLOCK DIAGRAM
A15
A14
A13
A12
A11
A10
A9
A8
NC
NC
WE#
NC
NC
NC
NC
NC
NC
A7
A6
A5
A4
A3
A2
A1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
A16
NC
V
SS
DQ15
DQ7
DQ14
DQ6
DQ13
DQ5
DQ12
DQ4
V
DD
DQ11
DQ3
DQ10
DQ2
DQ9
DQ1
DQ8
DQ0
OE#
V
SS
CE#
A0
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
360 ILL F01.2
Standard Pinout
To p V i ew
Die Up
SST39LF200A/400A/800A
SST39VF200A/400A/800A
SST39LF/VF200A
A15
A14
A13
A12
A11
A10
A9
A8
NC
NC
WE#
NC
NC
NC
NC
NC
A17
A7
A6
A5
A4
A3
A2
A1
SST39LF/VF400A
A15
A14
A13
A12
A11
A10
A9
A8
NC
NC
WE#
NC
NC
NC
NC
A18
A17
A7
A6
A5
A4
A3
A2
A1
SST39LF/VF800A SST39LF/VF200A
A16
NC
V
SS
DQ15
DQ7
DQ14
DQ6
DQ13
DQ5
DQ12
DQ4
V
DD
DQ11
DQ3
DQ10
DQ2
DQ9
DQ1
DQ8
DQ0
OE#
V
SS
CE#
A0
SST39LF/VF400A
A16
NC
V
SS
DQ15
DQ7
DQ14
DQ6
DQ13
DQ5
DQ12
DQ4
V
DD
DQ11
DQ3
DQ10
DQ2
DQ9
DQ1
DQ8
DQ0
OE#
V
SS
CE#
A0
SST39LF/VF800A
IC SST39LF-VFx00A_Block Diagram
PIN DESCRIPTION
Symbol Pin Name Functions
A
MS
1
-A
0
Address Inputs To provide memory addresses. During Sector-Erase AMS-A11 address lines will select the
sector. During Block-Erase A
MS-A15
address lines will select the block.
DQ
15
-DQ0Data Input/output To o u t p u t data during Read cycles and receive input data during Write cycles.
Data is internally latched during a Write cycle.
The outputs are in tri-state when OE# or CE# is high.
CE# Chip Enable To activate the device when CE# is low.
OE# Output Enable To gate the data output buffers.
WE# Write Enable To control the Write operations.
V
DD
Power Supply To provide power supply voltage: 3.0-3.6V for SST39LF200A/400A/800A
2.7-3.6V for SST39VF200A/400A/800A
V
SS
Ground
NC No Connection Unconnected pins.
1. AMS = Most significant address
A
MS
= A16 for SST39LF/VF200A, A17 for SST39LF/VF400A, and A18 for SST39LF/VF800A
TDA7269ASA_Block Diagram
IC SST39LF-VFx00A_Pin Description
BLOCK DIAGRAM
+5V
15K 1µF
µP
1µF
1µF
MUTE/
ST-BY
IN (L)
18K15K
IN (R)
D94AU085
GND
+V
S
1000µF
5
7
+
-
9
3
OUT (L)
4
IN- (L)
8
10 IN- (R)
18K
100nF
560Ω
560Ω
4.7Ω
RL (L)
18K
11
-
+
6
1
-V
S
2
OUT (R)
4.7Ω
100nF
RL (R)
1000µF
4 - 14 - 1
A. To remove Cabinet Rear
B. To remove CD Tray
C. To remove Main Board
D. To remove Bottom Plate
E. To remove Tape Deck
F. To remove Display Board
G. To remove Key Board
G1 10
F1 4
D1 2
E1 4
B1 4
A9 2
C1
D2
C2
A7
2
A6 2
A8 2
A4 2
A1
A3 2
A5 2
2
A2
4 (1x)
3
3 (2x)
5 (2x)
5 (2x)
5(2x)
5
5
(2x)
5(2x)
3 (2x)
432
5(2x)
5(2x)
5
DISASSEMBLY DIAGRAM
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