Philips MCD179 User manual

Version 1.1
MCD179
3141 785 32551
DVD Micro Theater -/12/58
Published by LX 0824 Service Audio Subject to modification
© Copyright 2008 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.
CONTENTS
Technical specification ..................................................................1-2
Version variation... ........................................................................1-2
Service measurement setup..........................................................1-3
Service aids .................................................................................1-4
Instructions on CD playability ...............................................2-1.. 2-2
Disassembly diagram............ ........................................................3-1
Block diagram................................................................................4-1
Wiring diagram ..............................................................................4-2
Main board
Circuit diagram ..................................................................5-1..5-2
Layout diagram..................................................................5-3..5-4
Display board
Circuit diagram .........................................................................6-1
Layout diagram.........................................................................6-2
AMP board (in subwoofer box)
Circuit diagram .........................................................................7-1
Layout diagram.........................................................................7-2
Exploded view diagram .................................................................8-1
Mechanical parts list......................................................................8-2
Electrical parts list...................................................................9-1..9-3

AMPLIFIER
Output power
L/R speakers............................. 25 W /channel RMS
Subwoofer ..................................................... 50 W RMS
Speaker channel
Frequency Response .......................................................
........................................... 200 Hz - 18 kHz / ± 3 dB
Signal-to-Noise Ratio ...... > 60dB (A-weighted)
Input Sensitivity
AUX In .................................................................. 500 mV
Output Sensitivity
Line Out (1KHZ 0dB) ................................ 2 + 0.2V
TUNER
Tuning Range .............................. FM 87.5 – 108 MHz
Signal-to-Noise Ratio ................................ FM ≥50 dB
DVD
Laser Type ................................................ Semiconductor
Disc Diameter .............................................. 12cm / 8cm
Video Decoding ........................... MPEG-2 / MPEG-1
Video DAC ................................................................ 12 Bits
Signal System ............................................... PAL / NTSC
Video Format ..................................................... 4:3 / 16:9
Video S/N........................................... 56 dB (minimum)
Composite Video Output ................ 1.0 Vp-p, 75 Ω
S-Video Output .......................... Y - 700 Vp-p, 75 Ω
.............................................................. C - 300 Vp-p, 75 Ω
Audio DAC .......................................... 24 Bits / 96 kHz
USB PLAYER
USB ................................................................. 12 Mb/s,V1.1
......................................... support MP3 and WMA files
Number of albums/folders ................. maximum 99
Number of tracks/titles ...................... maximum 800
Main unit
Power Supply Rating ................. 220 -240V / 50 Hz
Power Consumption
Active .......................................................................... 60 W
Eco-power standby ............................................. <1 W
Dimensions (w x h x d) .... 232 x 85 x 275 (mm)
Weight ........................................................................... 1.24kg
Package Dimension (w x h x d)..................................
...................................................... 615 x 515 x 225 (mm)
Gross weight. .................................................................. 4 kg
SPEAKERS
System ................................................... 1-way, Bass reflex
Impedance........................................................................ 4 Ω
Speaker drivers .............................................. 3’’ fullrange
Frequency response ........................ 80 Hz – 20 kHz
Dimensions (w x h x d) . 160 x 250 x 180 (mm)
Weight ................................................................ 1.8 kg each
SUBWOOOFER
Impedance........................................................................ 6 Ω
Speaker driver ..................................... 5.25” subwoofer
Frequency response .......................... 60HZ—1K HZ
Dimensions(w x h x d ) . 160 x 250 x 310 (mm)
Weight ............................................................................ 7.4 kg
Specifications and external appearance are
subject to change without notice.
TECHNICAL SPECIFICATION
1 - 2
Type /Versions:
Features
Board in used:
MCD179
Service policy
DISPLAY BOARD
MAIN BOARD
TUENR BOARD
JACK BOARD
* TIPS : C -- Component Lever Repair.
M -- Module Lever Repair
-- Used
/05 /12 /55 89/16/85/
Feature diffrence
RDS
VOLTAGE SELECTOR
ECO STANDBY - DARK
C
C
Type /Versions:
MCD179
/05 /12 /55 89/16/85/
M
C
VERSION VARIATION
C
C
M
C

1-3
LF Generator
e.g. PM5110
Recorder
Use Universal Test Cassette CrO2 SBC419 4822 397 30069
LEVEL METER
e.g. Sennheiser UPM550
with FF-filter
S/N and distortion met
e
e.g. Sound Technology ST170
L
R
DUT
or Universal Test Cassette Fe SBC420 4822 397 30071
LEVEL METER
e.g. Sennheiser UPM550
with FF
-
filter
S/N and distortion meter
e.g. Sound Technology ST1700B
L
R
DUT
CD
Use Audio Signal Disc
(replaces test disc 3)
SBC429 4822 397 30184
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.
Use a bandpass filter (or at least a high pass filter with 250Hz) to eliminate hum (50Hz, 100Hz).
RF Generator
e.g. PM5326
Ri=50:
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
Use a bandpass filter to eliminate hum (50Hz, 100Hz) and disturbance from the pilottone (19kHz, 38kHz).
Ri=50:
Tuner FM
MEASUREMENT SETUP

1-4
SERVICE AIDS
GB WARNING
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.
ESD
CLASS 1
LASER PRODUCT
GB
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 !.
Lead free

Set remains closed!
N
Y
Play a CD
for at least 10 minutes
Y
playability
ok ?
N
playability
ok ?
add Info for customer
"SET OK"
check playability
N
Y
playability
ok ?
check playability
check playability
return set
Customer complaint
"CD related problem"
"fast" lens cleaning
1
2
3For flap loaders (= access to CD drive possible)
cleaning method 4is recommended
INSTRUCTIONS ON CD PLAYABILITY
2 - 1
Exchange CDM
1-4For description - see following pages

1
PLAYABILITY CHECK
For sets which are compatible with CD-RW discs
use CD-RW Printed Audio Disc ....................7104 099 96611
TR 3 (Fingerprint)
TR 8 (600µ Black dot) maximum at 01:00
• playback of these two tracks without audible disturbance
playing time for: Fingerprint 10seconds
Black dot from 00:50 to 01:10
• jump forward/backward (search) within a reasonable time
For all other sets
use CD-DA SBC 444A..................................4822 397 30245
TR 14 (600µ Black dot) maximum at 01:15
TR 19 (Fingerprint)
TR 10 (1000µ wedge)
• playback of all these tracks without audible disturbance
playing time for: 1000µ wedge 10seconds
Fingerprint 10seconds
Black dot from 01:05 to 01:25
• jump forward/backward (search) within a reasonable time
2
CUSTOMER INFORMATION
It is proposed to add an addendum sheet to the set which
informs the customer that the set has been checked
carefully - but no fault was found.
The problem was obviously caused by a scratched, dirty or
copy-protected CD. In case problems remain, the customer
is requested to contact the workshop directly.
The lens cleaning (method 3) should be mentioned in the
addendum sheet.
The final wording in national language as well as the printing
is under responsibility of the Regional Service Organizations.
4
LIQUID LENS CLEANING
Because the material of the lens is synthetic and coated
with a special anti-reflectivity layer, cleaning must be done
with a non-aggressive cleaning fluid. It is advised to use
“Cleaning Solvent
The actuator is a very precise mechanical component and
may not be damaged in order to guarantee its full function.
Clean the lens gently (don’t press too hard) with a soft and
clean cotton bud moistened with the special lens cleaner.
The direction of cleaning must be in the way as indicated in
the picture below.
Before touching the lens it is advised to clean the
surface of the lens by blowing clean air over it.
This to avoid that little particles make scratches on
the lens.
INSTRUCTIONS ON CD PLAYABILITY
2 - 2

3 - 1
DISASSEMBLY DIAGRAM

SET BLOCK DIAGRAM
4 - 1 4 - 1

SET WIRING DIAGRAM
4 - 2 4- 2

5 - 15 - 1
CIRCUIT DIAGRAM - MAIN BOARD
AV-OUT PART

CIRCUIT DIAGRAM - MAIN BOARD
DVD PART
5 - 2 5 - 2

5 - 3 5 - 3
LAYOUT DIAGARM - MAIN BOARD
COMPONENT SIDE VIEW

5 - 4
LAYOUT DIAGARM - MAIN BOARD
COPPER SIDE VIEW
5 - 4

CIRCUIT DIAGRAM - DISPLAY BOARD
6 - 1 6 - 1

LAYOUT DIAGARM - DISPLAY BOARD
6 - 2 6 - 2

CIRCUIT DIAGRAM - AMP BOARD in subwoofer box
AMP is not repaired,diagram for referrence only.
7 - 1 7 - 1

LAYOUT DIAGRAM - AMP BOARD in subwoofer box
AMP is not repaired,diagram for referrence only.
7 - 2
7 - 2

104
105
S001
117
112
800
101
123#
111
118
121
122 123
114
120
115
116
LCD
103
109
106
113
EXPLODED VIEW DIAGRAM
8 - 1 8 - 1

8 - 2
MECHANICAL PARTSLIST
101 996510012051 TUNER PCB ASSY(-/12)
103 996510019958 BOTTOM CABINET
104 996510012057 TOP CAB FRONT
105 996510019965 HOUSING
106 996510012096 DVD HOLDER
109 996510012059 USB BRACKET
111 996510012061 CD DOOR
112 996510008685 DAMPER GEAR ASSY (70kgf/cm)
113 996510012062 TWO KEYS
114 996510012063 HOLDER UNDER KEYS
115 996510012100 CLUSTER KEYS
116 996510012064 PLAY KEY
117 996510012065 VOLUME KNOB
118 996510012098 CD DOOR LENS
120 996510012066 USB LENS
121 996510012067 IR LENS
122 996510012069 ECO POWER LIGHTGIUDE LENS
123 996510012097 STANDBY KEY
123# 996510012775 USB LOGO PANEL
136 996510012072 CD DOOR SPRING
800 996510012090 DVD MECHANISM (SONY)
J001 996510012092 24P FFC 0.5mm L=140mm
J002 996510012093 11P FFC 1mm L=100mm
J006 996510012055 10P FFC.1.25mm L=180mm
S001 994000002354 CD DOOR SWITCH DLS-02-W-1
ACCESSORIES
J006 994000001381 FM ANT (BLACK) 1M
J007 996510012773 9P MINI DIN CABLE L=1.5M
J008 996510012094 RCA PLUG CORD 3P L=1.5M
P001 996510028866 REMOTE CONTROL
SPK 996510012772 SINGLE SPEAKER BOX L / R
2 996510012776 SUBWOOFER BOX ASSY
Note: Only these parts mentioned in the list are
normal service parts.
101 996510012777 TUNER PCB ASSY(-/58)

ELECTRICAL PARTSLIST
MAIN BOARD ASSEMBL
Y
D001 996500042437 CH-DIODE SS14 SMA/DO-214AC
D003 996500042437 CH-DIODE SS14 SMA/DO-214AC
D201 996510000323 SMD DIODE BAS316
D202 996510000323 SMD DIODE BAS316
D203 996510000323 SMD DIODE BAS316
D204 996510000323 SMD DIODE BAS316
D205 996510000323 SMD DIODE BAS316
D206 996510000323 SMD DIODE BAS316
D207 996510000323 SMD DIODE BAS316
D208 996510000323 SMD DIODE BAS316
D209 996510000323 SMD DIODE BAS316
D210 996510000323 SMD DIODE BAS316
D211 996510000323 SMD DIODE BAS316
D212 996510000323 SMD DIODE BAS316
D213 996510000323 SMD DIODE BAS316
D235 996510002112 REC. DIODE DL4001-T 1A 50V
D236 996510002112 REC. DIODE DL4001-T 1A 50V
D7 996510000323 SMD DIODE BAS316
Z601 996510012073 ZENER DIODE +-5% 7.5V 1/2W
Q001 994000004145 TRANSISTORS B772Y (160-320)
Q002 996510012765 SMD TRANSISTORS MMBT3904CT1
Q003 996510008369 TRANSISTORS MMBT8050D (SOT23)
Q004 996510012765 SMD TRANSISTORS MMBT3904CT1
Q005 996510009308 TRANSISTORS MMBT8550D
Q006 996510012765 SMD TRANSISTORS MMBT3904CT1
Q007 994000004337 TRANSISTORS 2SD1936T-AC
Q008 994000004337 TRANSISTORS 2SD1936T-AC
Q009 996500038610 TRANSISTORS 2W 8550C
Q010 996510012765 SMD TRANSISTORS MMBT3904CT1
Q011 996500038610 TRANSISTORS 2W 8550C
Q012 996510009308 TRANSISTORS MMBT8550D
Q013 996510012765 SMD TRANSISTORS MMBT3904CT1
Q101 996510012765 SMD TRANSISTORS MMBT3904CT1
Q103 996510012765 SMD TRANSISTORS MMBT3904CT1
Q203 996510012765 SMD TRANSISTORS MMBT3904CT1
Q204 996510009477 SMD TRANSISTORS 2SK3018
Q205 996510009477 SMD TRANSISTORS 2SK3018
Q206 996510009476 SMD TRANSISTORS 2SB1132-Q-T100
Q207 996510009476 SMD TRANSISTORS 2SB1132-Q-T100
Q208 996510012765 SMD TRANSISTORS MMBT3904CT1
Q210 996510012765 SMD TRANSISTORS MMBT3904CT1
Q218 996510012765 SMD TRANSISTORS MMBT3904CT1
Q219 994000003937 SMD TRANSISTORS PMBT3906
Q220 996510012765 SMD TRANSISTORS MMBT3904CT1
Q702 996510008369 TRANSISTORS MMBT8050D (SOT23)
Q703 994000004337 TRANSISTORS 2SD1936T-AC
Q704 994000004337 TRANSISTORS 2SD1936T-AC
Q705 996510012765 SMD TRANSISTORS MMBT3904CT1
U001 996500038611 IC KA7810E
U003 996510009443 IC (MPS) MP1583 (SOP-8)
9 - 1