Copyright 2003 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 BB 0302 Service AudioPrinted in The NetherlandsSubject to modification
Version 1.1
LASER PRODUCT
GB
3139 785 30261
LOCATION OF PRINTED CIRCUIT BOARDS
LCD INTERCONNECT
ANTENNA BOARD
1-2
MODULE INTERNET AUDIO
MAINS SOCKET
BOARD
ANTENNA
BOARD
BOARD
CONTROL BOARD
DISPLAY BOARD
ECO STANDBY
BOARD
SHUTTLE
BOARD
VOLUME
BOARD
LCD BACK
LIGHT BOARD
IR
BOARD
MAINS BOARD
HEADPHONE
BOARD
VERSION VARIATIONS:
Type /Versions:MC-i250
Features &
/21M/22/37
Board in used:
Aux in /CDR inxxx
Line Outxxx
Surround Out
Subwoofer Outxxx
Digital Out
Digital in
Matrix Surround
CD Text
Dolby B
RDSx
Newsx
Dolby Pro Logic (DPL)
Incredible Surroundxxx
Karaoke Features
Voltage Selectorx
ECO Power Standby (Clock Display Off)xxx
ECO6 Tuner Board - Systems Non-Cenelecxx
ECO6 Tuner Board - Systems Cenelecx
Center/Surround Channel
TUNER BOARD
CD BOARD
REGULATOR
BOARD
COMBI BOARD
SPECIFICATIONS
1-3
GENERAL:
Mains voltage : 110-127V/220-240V Switchable for /21/21M
120V for /37
220-230V for /22
Mains frequency: 50/60Hz
Power consumption: < 0.5W at ECO Power Standby
: <15W at Standby (DEMO mode off)
: 80W at Active
Clock accuracy: < 4 seconds per day
Dimension centre unit : 175 x 244 x 366mm
TUNER:
FM
Tuning range: 87.5-108MHz
Grid: 50kHz
100kHz for /37
IF frequency: 10.7MHz ± 25kHz
Aerial input: 75Ω coaxial
300Ω click fit for /37
Sensitivity at 26dB S/N: < 7µV
Selectivity at 600kHz bandwidth: > 25dB
Image rejection: > 25dB
Distortion at RF=1mV, dev. 75kHz: < 3%
10kHz for /21/21M/37
IF frequency: 450kHz ± 1kHz
Aerial input: Frame aerial
Sensitivity at 26dB S/N: < 4.0mV/M
Selectivity at 18kHz bandwidth: > 18dB
IF rejection: > 45dB
Image rejection: > 28dB
Distortion at RF=50mV, m=80%: < 5%
AMPLIFIER:
Output power (6Ω, 1kHz, 10% THD)
L & R: 2 x 50W RMS/21M/22
Output power (6Ω, 60Hz-12.5kHz, 10% THD)
L & R: 2 x 40W FTC/37
Frequency response within -3dB: 50Hz-16kHz
Incredible Surround: ON/OFF
Treble: 12.5kHz ± 3 Steps
Bass: 55Hz ± 3 Steps
Woox: Level 1, 2, 3 & OFF
Input sensitivity
Aux in (at 1kHz) : 500mV ± 3dB at 600Ω
CDR in (at 1kHz) : 1V ± 3dB at 600Ω
Output sensitivity
Line out (Left/Right) : 500mV ± 3dB at 22kΩ
Subwoofer out (50Hz - 8kHz) : 1.5V ± 3dB at 22kΩ
Headphone output at 32Ω : 680mV ± 1dB (Vol. Max.)
COMPACT DISC:
Measurement done directly at the connector on the board.
Output resistance: < 100Ω
Output voltage (in Vrms): 550mV ± 1dB (unloaded)
Frequency deviation: < 1%
Channel unbalance: < ±1dB
Frequency response: < ±1.5dB for 20Hz-20kHz
Signal to Noise Ratio (A-weighted) : > 80dBA
Distortion at 1kHz: < 0.02%
Crosstalk (1kHz): >60dB
[....] Values indicated are for "ECO6 Cenelec Board" only.
LW
Tuning range: 153-279kHz /22
Grid: 3kHz
IF frequency: 450kHz ± 1kHz
Aerial input: Frame aerial
Sensitivity at 26dB S/N: [< 6.0mV/M]
Selectivity at 18kHz bandwidth: [> 24dB]
IF rejection: [> 45dB]
Image rejection: [> 30dB]
Distortion at RF=50mV, m=80%: [< 5%]
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.
2-1
DISMANTLING INSTRUCTIONS
Opening of the Universal Loader Tray manually & Dismantling of the Cover Tray
1) Loosen 6 screws and remove the Cover Top (pos 255) by
sliding it out towards the rear before lifting up.
-4 screws on the rear
-1 screw each on the left & right side
2) Loosen 2 screws each to remove the Panel Left (pos 253)
and Panel Right (pos 254). The Panels are remove by
sliding it towards the rear and outwards.
-1 screw on the side
-1 screw on the rear
3) Take a paper clip or any stiff wire diameter of 1mm-1.5mm
and make a marking about 40mm from the tip as shown in
Figure 1.
4) Place the set in the position as shown in Figure 2 and insert
the paper clip or stiff wire into the hole on the Left side of
the Cabinet Front (pos 101).
Figure 1
5) With the marking just outside the hole on the Cabinet Front
(pos 101) as shown in Figure 3, you have to feel and give
a push to unlock the tray of the Universal Loader before
sliding it out.
Figure 2
6) With the tray of the Universal Loader opened, remove the
Cover Tray (pos 158) as shown in Figure 4.
Figure 3Figure 4
2-2
DISMANTLING INSTRUCTIONS
Detaching the Front Panel assembly from the Bottom/Rear assembly
1) Remove 2 screws A (pos 226) as shown in Figure 5 from
the bottom of the Cabinet Front (pos 101).
2) Release the fixation of the Combi Board (pos 1101-1001)
to Bracket Combi (pos 252) by releasing the 2 catches C2
(see Figure 6) and pulling the board outwards as shown in
Figure 7.
3) Uncatch 2 catches C1 (see Figure 6) on the left & right
sides of the Cabinet Front (pos 101) and slides the Front
Panel assembly out towards the front.
4) Remove 2 screws B (pos 225) as shown in Figure 8 to
remove the Universal Loader (pos 1109).
Figure 7
Figure 5
Figure 8
Figure 6
DISMANTLING INSTRUCTIONS
2-32-3
Dismantling of the Front Panel assembly
1) Loosen 3 screws D (see Figure 9) to remove the Control
Board (pos 1107-B).
2) Loosen 2 screws E (see Figure 9) to remove the ECO
Standby Board (pos 1107-D).
3) Loosen 4 screws F (see Figure 9) to remove the Volume
Board (pos 1107-H).
4) Loosen 2 screws G (see Figure 9) to remove the Bracket
Combi (pos 252).
5) Loosen 2 screws H (see Figure 10) to remove the
Headphone Board (pos 1107-F).
6) Loosen 6 screws J (see Figure 11) to remove the Display
Board (pos 1107-A).
7) Loosen 4 screws K (see Figure 12) to remove the Shuttle
Board (pos 1107-G).
8) Loosen 2 screws L (see Figure 12) to remove the LCD
Interconnect Board (pos 1107-J).
9) Loosen 1 screws V (see Figure 12) to remove the Infra
Receiver Board (pos 1107-E).
10)Loosen 2 screws M (see Figure 13) to remove the LCD
Back Light Board (pos 1107-C).
Figure 11
Dismantling of the Antenna Board, Bracket Antenna and Internet Audio Module
1) Uncatch the catches C5 (see Figure 14) to remove the
Antenna Board (pos 1106).
Figure 14
2) Uncatch the catches C6 (see Figure 14) and push
upward to remove the Bracket Antenna (pos 250).
Figure 9
Figure 12
3) Loosen 2 screws N (see Figure 14A) to remove the
Internet Audio Module assembly.
4) Loosen 4 screws P (see Figure 14B) to open the Shield
IAM (pos 262).
5) Loosen 2 screws P1 (see Figure 14C) to remove the Fan
(pos 1111).
Figure 14A
Figure 10
Figure 13
Figure 14B
Figure 14C
DISMANTLING INSTRUCTIONS
2-4
2-4
Dismantling of the Rear Panel
1) Loosen 3 screws Q and 2 catches C3 (see Figure 15) to
remove the Tuner Board assembly.
2) Loosen 1 screw S (see Figure 15) to free the Mains
Socket Board from the Panel Rear (pos 256).
3) Loosen 5 screws R and 2 catches C4 (see Figure 15) to
remove the Panel Rear (pos 256) by sliding it out towards
the rear.
Dismantling of the Bottom assembly
1) Loosen 2 screws T as shown in Figure 16 to remove the
Combi & Regulator boards assembly (pos 1101-1001 &
pos 1101-1003).
2) Loosen 2 screws U as shown in Figure 17 to remove the
Housing Fan Top (pos 267).
Note : During Fan (pos 1110) replacement, care should
be taken to ensure that the following are correct:
- fan blade direction
- fan wire position
Figure 15
Figure 16
Repair Hints
1) During repair it is possible to disconnect the ECO6 Tuner
Board completely unless the fault is suspected to be in
that area. This will not affect the performance of the rest
of the set.
2) Care should be taken not to damage or tear the LCD
Module Cable during repair (see Figure 18 & Figure 19).
The LCD Module Cable may be damage or tear as shown
in Figure 20 if too much force is applied when removing
the Black Tape during repair.
Figure 17
Note: The flex cables are very fragile, care should be taken
not to damage them during repair. After repair, be
very sure that the flex cables are inserted properly
into the flex sockets before encasing, otherwise faults
may occurs.
Figure 18Figure 19Figure 20
2-52-5
DISMANTLING INSTRUCTIONS
Service position AService position B
3-13-1
SERVICE TEST PROGRAM
TUNER
TEST
TUNER
Button pressed?
Y
Display Tuner Version
"ccc"
TUNER
Button pressed?
Service frequencies are
copied to the RAM (see Table 1)
Tuner works normally except:
PROGRAM button
Disconnect
Mains cord ?
Y
Service Mode left
N
N
N
S refers to Service Mode
V refers to Version
yy refers to Software version number
of the uProcessor
(counting up from 01 to 99)
QUARTZ
TEST
BACK ( S )
Button pressed?
Y
Display shows
32K
Output at (Front Board)
pin 11 of uP = 2048Hz
BACK ( S )
Button pressed?
Y
Display shows
12M
Output at (Front Board)
pin 11 of uP = 2,929.6875Hz
CANCEL ( 9 )
Button pressed?
Y
To start service test program
hold ENTER (
plugging in the mains cord
T
depressed while
Display shows the
ROM version
"S-Vyy"
(Main menu)
) & AUX
SERVICE
PLAY MODE
N
N
N
STANDBY-ON
Button pressed?
Y
Set is in Service PLAY Mode
CD
Button pressed?
Y
CD works as in normal operation.
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 CD works as in normal
opeartion, at which electronics will
still be function even when an error
is detected so that repair activities
can be carried out.
N
Module Internet Audio - Software Upgrading
Press INTERNET button followed by OPTIONS button, then press the Right-Hand Soft Key ( ! )
on the set to select the "SET OPTIONS".
Use the navigation Jog Shuttle to select "ONLINE UPGRADE" from the list and press OK (
to confirm and follow the instruction given on the display.
DISPLAY
TEST
N
OK (2)
Button pressed?
Y
Display shows Figure 1
and switch all LEDs on
OK (2)
Button pressed?
Y
Display shows Figure 2
and switch alternate LEDs on
(see Table 3)
CANCEL ( 9 )
Button pressed?
Y
N
N
N
É
Module Internet Audio - Clear Email Address and Presets memory
By holding the INTERNET and ENTER ( T ) buttons depressed while switching on the Mains
supply (without the need to be in either Service or Factory mode), all Email address and presets
)
stored in the memory will be cleared.
The display will shows "STARTING UP" for a few seconds. When the stored information in the memory
has been cleared, the display will shows "FACTORY RESET". Subsequently, the software is upgraded
(if necessary) when the set is first connected to the internet.
Alternatively, press INTERNET button followed by OPTIONS button, then press the Right-Hand Soft
Key (
!
) on the set to select the "SET OPTIONS".
Use the navigation Jog Shuttle to select "RESET SETTINGS" from the list and press OK (
É
) to
confirm and follow the instruction given on the display.
Figure 1
PRESET
* Depending on the selected grid frequency
Note: By holding the TUNER and ENTER (
Europe
"EUR"
1
87.5MHz
2
108MHz
3
531kHz
4
1602kHz
5
558kHz
6
1494kHz
7
153kHz
8
279kHz
9
198kHz
10
98MHz
11
87.5MHz
(9 or 10kHz).
buttons depressed while switching on the
Mains supply, the tuning grid frequency is
toggled between 9kHz and 10kHz for the
Oversea (/21) version.
USA
"USA"
87.5MHz
108MHz
530kHz
1700kHz
560kHz
1500kHz
98MHz
87.5MHz
87.5MHz
87.5MHz
87.5MHz
Table 1
Oversea
"OSE"
87.5MHz
108MHz
531/530kHz*
1602/1700kHz*
558/560kHz*
1494/1500kHz*
87.5/98MHz*
87.5MHz
87.5MHz
87.5MHz
98/87.5MHz*
T
Service Play Mode Error Codes
Error code
E1000
E1001
E1002
E1003
E1005
E1006
E1007
E1008
E1020
)
E1030
E1079
Error Description
Focus Error
Triggered when the focus cannot be found within a certain time when starting up the CD, or if
the focus is lost for more than a certain time during playing of CD.
Radial Error
Triggered when the radial servo is off-track for a certain time during playing the CD.
Sledge In Error
The sledge did not reach its inner position (inner-switch is close) before approximately 6 sec.
have passed by - Inner-switch or sledge motor problem.
Sledge Out Error
The sledge did not come out of its inner position (inner-switch is open) before approximately
250ms have passed by - Inner-switch or sledge motor problem.
Jump Error
Triggered in normal play when the jump destination could not be found within a certain time.
Subcode Error
Triggered when a new subcode was missing for a certain time during playing CD.
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.
Disc motor problem.
Focus Search Error
The focus point has not been found within a certain time.
EBU Connection Error
Generated when IM module could not receive any data from EBU interface within a certain
time.
The drawer could not enter the inside position and is opening again. This can happen if the
drawer is blocked such that it cannot go fully inside, or if the drawer switch is defective and
does not close.
Table 2
LEDs
ECO POWER
PC LINK
TUNER
wOOx
LCD Back Light 2
Table 3
MC-i250
On
On
On
On
On
Figure 2
TEST
EEPROM TESTA test pattern will be sent to the EEPROM.
TEST
ROTARY
ENCODER TEST
DEMO TOGGLE
LEAVE SERVICE
TEST PROGRAM
Activated with
ENTER ( T )
CANCEL ( 9 )
Rotary Volume Knob
to Exit
OPTIONSEEPROM FORMAT
Jog ShuttleDisplay shows "LEVEL -1" or "LEVEL +1" when the Jog Shuttle turn in
TREBLE
Disconnect
mains cord
ACTION
"PASS" is displayed if the uProcessor read back the test pattern correctly,
otherwise "FAIL" will be displayed.
Load default data. Display shows "NEW" for 1 second.
Caution! All presets from the customer will be lost!!
Display shows value for 2 seconds.
Values increases or decreases until Min. (-87dB) or Max. (0dB) is reached.
anti-clockwise or clockwise for the first step.
Display shows "LEVEL -2" or "LEVEL +2" when the Jog Shuttle turn in
anti-clockwise or clockwise for the second step.
Pressing this button will toggle between DEMO ON and DEMO OFF.
The DEMO status will be displayed.
Micro 2003 MC-i250 Service Test Program (dd wk0248)
LCD Module - Interface Pin Function .............................. 6-1
Control Part - Component & Chip layout ......................... 6-2
Control Part - Circuit diagram .......................................... 6-3
Display Part - Component & Chip layout ........................ 6-4
Display Part - Circuit diagram ......................................... 6-5
ECO Standby Part - Layout & Circuit diagram ................ 6-6
Infra Receiver Part - Layout & Circuit diagram ............... 6-6
Headphone Part - Layout & Circuit diagram ................... 6-7
Shuttle Part - Layout & Circuit diagram........................... 6-7
LCD Interconnect Part - Layout & Circuit diagram.......... 6-8
LCD Back Light Part - Layout & Circuit diagram............. 6-9
Volume Part - Layout & Circuit diagram ........................ 6-10
Electrical parts list.......................................................... 6-11
COM32
COM64
LCD DRIVER IC
COM1
VSS
VDD
V0
/RES
/CS1
RS
/WR
COM33
/RD
D0-D7
INTERFACE PIN FUNCTION
NOSYMBOLLEVELFUNCTION
1.VSS-GND
2.VDD-Power for Logic Circuit
LCD
3.V0-V
4./RES-Reset
5./CS1H/LChip Select
6.RSH/LH : D0 to D7 Display Data
7./WRH/LL : Writes Data to Internal Register
8./RDH/LL : Read Data from Register
9.D7H/LData Bus
10.D6H/LData Bus
11.D5H/LData Bus
12.D4H/LData Bus
13.D3H/LData Bus
14.D2H/LData Bus
15.D1H/LData Bus
16.D0H/LData Bus
Output
Instruction & Data Register Select
L : D0 to D7 are Display Control Data
CONTROL BOARD - COMPONENT LAYOUTCONTROL BOARD - CHIP LAYOUT
6-26-2
This assembly drawing shows a summary of all possible versions. For components used in a specific version see schematic diagram and respective parts list.
3139 113 3476 pt3 dd wk0248
This assembly drawing shows a summary of all possible versions. For components used in a specific version see schematic diagram and respective parts list.
This assembly drawing shows a summary of all possible versions. For components used in a specific version see schematic diagram and respective parts list.
This assembly drawing shows a summary of all possible versions. For components used in a specific version see schematic diagram and respective parts list.
This assembly drawing shows a summary of all possible versions. For components
used in a specific version see schematic diagram and respective parts list.
3139 113 3476 pt3 dd wk0248
ECO STANDBY BOARD - CIRCUIT DIAGRAM
ECO STANDBY BOARD - CHIP 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.
3139 113 3476 pt3 dd wk0248
INFRA RECEIVER BOARD - 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.
3139 113 3476 pt3 dd wk0248
INFRA RECEIVER BOARD - CIRCUIT DIAGRAM
INFRA RECEIVER BOARD - CHIP 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.