Philips MCD716 User manual

Version 1.1
MCD716
©
ServiceManual
DVD Micro System
Published by DB 0946 Service Audio Printed in The Netherlands Subject to modification
©Copyright 2006 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.
CLASS 1
LASER PRODUCT
3141 785 32301
Location of PCBS ............................................................ 1-1
Specifications ................................................................. 1-2
Measurement Setup ....................................................... 1-3
Service Aids, Safety Instruction, etc. .............................. 1-4
Instructions On CD Playability .............................. 1-5 to 1-6
Software Version Check & Upgrade .............................. 2-1
Malfuction Check Chart .................................................. 2-2
Disassembly Diagram .................................................. 3-1
Block Diagram ................................................................. 4-1
Wiring Diagram................................................................. 4-2
Display Board ................................................................. 5
Tuner Board ................................................................. 6
Remote Receive And Volume Board .............................. 7
Aux And USB Board ....................................................... 8
Headphone And Lamp Board ........................................ 9
Scart And Amp front lamp Board ................................... 10
Power Board ................................................................. 11
Decode Board ................................................................. 12
Explode View ................................................................. 13
Service Partlist ................................................................. 14
Factory Partlist ................................................................. 15
TABLE OF CONTENTS

SCART BOARD
VOLUME BOARD
AUX BOARD LAMP BOARD
HEADPHONE BOARD
REMOTE CONTROL BOARD
TUNER BOARD
DECODER/MCU BOARD
POWER BOARD
DISPLAY BOARD
LOCATION OF PCBS
1-1
VERSION VARIATIONS:
Type /Versions:
Features
Board in used:
MCD716
Service policy
* TIPS : C -- Component Lever Repair.
M -- Module Lever Repair
√
-- Used
/12 89/
Feature diffrence
RDS
SCART
ECO STANDBY - DARK
√
√
C
M
M
M
M
M
M
M
M
Type /Versions:
MCD716
/12 89/
C
C
M
/58
√
/58
√
√
√
√
DISPLAY BOARD
TUNER BOARD
HEADPHONE BOARD
USB BOARD
POWER BOARD
DECODE BOARD
SCART BOARD C
C
M
M
M
C
C
C

Amplifier
Rated output power ........................... 2 x 50W RMS
Frequency response ................ 20 - 20000Hz, - 3dB
Signal to noise ratio ...................................... > 65dB
Aux input ....................................... 1V RMS 20kohm
Disc
Laser type ........................................ Semiconductor
Disc diameter ........................................... 12cm/8cm
Video decoding ................ MPEG-1 / MPEG-2 / Divx
Video DAC ...................................................... 12Bits
Signal system ........................................ PAL / NTSC
Video format ............................................. 4:3 / 16:9
Video S/N..................................................... > 48dB
Audio DAC ........................................ 24Bits / 96kHz
Total harmonic distortion................... < 0.1% (1kHz)
Frequency response ............ 4Hz - 20kHz (44.1kHz)
................................................ 4Hz - 22kHz (48kHz)
................................................ 4Hz - 24kHz (96kHz)
S/N ratio ..................................................... > 65dBA
Tuner
FM tuning range .............................. 87.5 - 108MHz
Tuning grid ..................................................... 50KHz
Sensitivity
– Mono, 26dB S/N ratio.................................... 50uV
– Stereo, 46dB S/N ratio ................................ 100uV
Selectivity ...................................................... > 28dB
Image rejection .............................................. > 25dB
Total harmonic distortion.................................. < 3%
Signal to noise ratio .................................... > 55dBA
Speakers
Speaker impedance .............................................. 4 ohm
Speaker driver, base ..................................................... 5”
Speaker driver, tweeter .............................................. 0.2”
Frequency response ................................ 60 - 20000 Hz
General information
T
otal output power ..................................... 2 x 75W RMS
AC power................................ 220V - 230V, 50Hz / 60Hz
Operation power consumption ................................ 55W
Standby power consumption .................................. < 7W
Eco standby power consumption ............................... 1W
Composite video output .......................... 1.0Vp-p, 75ohm
Coaxial output ........................... 0.5Vpp ± 0.1Vpp 75ohm
Headphone output .............................. 2 X 15mW, 32ohm
USB direct ..................................................... Version 1.1
Dimensions
– Main unit (W x H x D) ....................................................
......................................................... 240 x 160 x 230mm
– Speaker box (W x H x D) ...............................................
......................................................... 160 x 270 x 220mm
Weight
– With packing ........................................................ 15kg
– Main unit ............................................................ 5.15kg
– Speaker box ....................................................... 3.15kg
Specifications subject to change without
prior notice
1-2
SPESIFICATION

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
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 t10seconds
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 t10seconds
Fingerprint t10seconds
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
1-

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2-2
MALFUCTION CHECK CHART
2-2
No
No
Yes
No
Yes
DVD display
no image
Check video wire and
video socket is good or
bad
Check and change
video wire and socket
decoder card is
broken
VFD display
no show
Check voltage of
filaments for power
board is good or bad
Check the legs of filaments
whether have been short of
earth capacitor
Power board is
broken
Change capacitor
Check VFD screen is
good or bad Change VFD screen
Check cable is
good or bad Change cable
Yes
Yes

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3
4
1041NC subv
1-D
2+
+
D
3DNG
4dleihS
5DNG
6
1041J
BSU
u-DNG
+D
-D
subv
AUX BOARD USB BOARD
AUX AND USB BOARD
8-1 8-1

1
2
3
4
0001NC
0.2/NIP4
A0001J
1153KC
C0001J
1153KC
B0001J
1153KC
01_DNGA
01_OR
01_OL
ETUM-PH
12
4011DEL
12
3011DEL
12
1011DEL
12
0011DEL
12
1021DEL
12
0021DEL
019R
086
219R
086
709R
086
609R
086
409R
086
509R
086
1
2
902NC
HEADPHONE BOARD
LAMP BOARD
HEADPHONE AND LAMP BOARD
9-1 9-1