Philips MCD710 Bedienungsanleitung
Version 1.4
MCD710
3141 785 32074
DVD Micro theatre
all versions
Published by LX 0835 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.
Service Aids ..................................................................................1-1
Info. about lead-free soldering.......................................................1-1
Service Instruction ........................................................................1-1
CD Playability Check .............................................................2-1..2-3
Disassembly digram ...............................................................3-1..3-3
Software version check and upgrading .........................................4-1
Block diagram................................................................................5-1
Wiring diagram .............................................................................6-1
Tuner Board
circuit diagram ..........................................................................7-1
layout diagram ..........................................................................7-2
VFD Board
circuit diagram ..........................................................................8-1
layout diagram ..........................................................................8-2
circuit diagram................................................................... 9-1...9-3
layout diagram ...........................................................................9-4
MPEG Board
circuit diagram. .............................................................. 11-1..11-6
layout diagram ........................................................................ 11-7
Exploded view diagram ..................................................................12-1
Service parts list ....................................................................13-1..13-5
TABLE OF CONTENTS
AMP/POWER Board
...
1-1
Service Tools:
Universal Torx driver holder .................................4822 395 91019
Torx bit T10 150mm ...........................................4822 395 50456
Torx driver set T6-T20 .........................................4822 395 50145
Torx driver T10 extended .....................................4822 395 50423
Compact Disc:
SBC426/426A Test disc 5 + 5A ...........................4822 397 30096
SBC442 Audio Burn-in test disc 1kHz .................4822 397 30155
SBC429 Audio Signals disc .................................4822 397 30184
Dolby Pro-logic Test Disc ....................................4822 395 10216
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!
Standard repair procedure
N
Y
Play a CD
for at least 10 minutes
Y
playability
ok ?
N
playability
ok ?
add Info for customer
"SET OK"
playability
ok ?
Y
N
check playability
N
Y
playability
ok ?
check playability
check playability
EYE-Pattern
ok ?
N
Y
check "EYE-Pattern"
replace CD Drive
Laser current
ok ?
N
Y
check Laser current
CD Drive offsets
ok ?
N
Y
check CD Drive offsets
clean the lens
check playability
return set
Customer complaint
"CD related problem"
return set
return set
replace CD Drive
return set
replace CD Drive
return set
replace Signal Processor
return set
"fast" lens cleaning
1
2
3
4
5
6
7
For flap loaders (= access to CD drive possible)
cleaning method 4is recommended
1- 7For description - see following pages
CD PLAYABILITY CHECK
2 -1
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.
3
FAST LENS CLEANING (dry brush)
Use lens cleaning CD
SBC AC300...........................................9082 100 00043
Insert the lens cleaning CD, press PLAY and follow the
voice guide´s instructions on the CD.
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 B4-No2”, available with codenumber
4822 389 10026.
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.
CD PLAYABILITY CHECK
2-2
5
EYE-PATTERN SIGNAL – JITTER MEASUREMENT
Measure the signal on the input of the Signal processor
using an analog oscilloscope. Please find the exact
measuring point in your Service Manual.
See below examples of the signal. Amplitude should read at
least 700mVpp using SBC444A.
good
bad
If the oscilloscope shows a signal like the ‘bad’ one, and/or
the amplitude decreases within 1 minute - the CD drive has
to be replaced.
6
CD DRIVE – LASER CURRENT MEASUREMENT
The laser current can be measured as a voltage drop on a
resistor. The resistor is marked in every Service Manual.
The value depends on the type of CD drive.
typical value most probably defect
VAMxxxx : 150-230mV ≥350mV
MCDxx : 170-230mV ≥300mV
DA1x : 210-250mV ≥350mV
DA2x : 175-200mV ≥250mV
Use SBC444A (CD-DA) for measurement.
7
CD DRIVE – OFFSET MEASUREMENT
The photodiodes of the CD-drive may have an offset. These
offsets have to be compensated by the signal processor.
High offsets can lead to poor playability of some CDs
(skipping tracks).
To measure the offset values, start the Service Test
Program - section “Focus Test” without a CD.
The offsets can be measured with a DC Millivoltmeter
directly on the connector (see drawing below). Pin
numbering varies from drive to drive.
The values from diode A-D should read 0±10mV.
Diodes E and F are less critical.
If one of the offsets is higher than ±10mV the CD drive has
to be replaced. Otherwise replace the Signal Processor.
Sanyo DA12T3
CD Drive
A
A
F
C
B
E
C
D
E
VCC
B
VREF
F
D
9
10
11
12
13
14
15
16
1800
+5V_HF
VrefCD10
A
D
E
B
C
F
GND 8
E
D
A
B
C
F
Laser power control
100n
2878
470n
2876
3821
1R
1K
3823
2880
33p
+5V
BC807-40
7879
3817
47R
3820
4R7
47R
3819
1n
2879
2877
47u
1
8
4
7811-A
LM358D 3
2
10K
3822
47R
3818
2841
100n
47n
2869
+5V_HF
LASER DIODE
U >250mV
->Laser damaged !
4,6V
3V
3,3V
3,9V
2V
0,17V
0,17V
Sanyo
DA12T3
HF-Amplifier
D3
D2
D1
Drive detection
680R
3905
3903
3K3
BC847B
7877
47n
2818
1K5
3902
5
7
4
2
1
6
3
64
8
9
10
11
470R
3893
+3.3V
2K2
3908
10K
3923
BC847B
7878
BC847B
7876
4n7
2813
3896
100R
220u
2885
2881
560p
47n
2887
560R
3901
2883
470n
2817
4u7
3n3
2814
3898
220R
3895
27K
470n
2884
+3.3V
3909
820R
3907
100R
3920
33K
3897
2882
82p
3K3
3904
2K7
3899
3906
470R
+5V_HF
HFIN
VrefCD10
100p
28152816
22n
LDON
to 3826,3827
VREF GE
VDDA1
VRIN
VSSA1
ISLICE
LDON
D1
D2
D3
D4
HFIN
HFREF
IREF
CD_DA: 0V / CD_RW: 3V
Σ(A-D)
800mVpp
TB = 0.5µs/div
EYE-PATTERN
1,8V
1,2V
2,4V
2,6V
0,65V
CD PLAYABILITY CHECK
2-3
A. Remove TOP cover
A1. Loosen screws
3×15PA (4PCS)
A1
D.Cut off 2 PCS wire tie
D
Disassembly Diagram
3-1 3-1
C
C. Loosen screw 3×6FMTT(1PCS),remove turner board
B. Loosen screws 3×10FA(7PCS),then remove back cover of output jack
B
A.Open the top cover
E.Loosen screws 3×10PA(1PCS),then remove AMP board
F.Loosen screws 3×15BA(4PCS), then remove mechanism core
I.Loosen screws 3×10BA(2PCS),and remove top cover
3 - 2 3 - 2
E
F
G
G.Loosen screws3×6PT(2PCS),then remove decoder board
I
I. Loosen screws 2.6×8BA(8PCS),and remove display board
J. Loosen screws 2.6×8BA(3PCS) and remove volume board K.Loosen screws 2.6×8BA(4PCS), remove USB and earing socket
3 - 3 3 - 3
J
I
K
Software Version Check & Upgrade
MCD710 Vxx
Upgrade software
Software check
3.Press SYSTEM on the remote open menu, press Left or Right to select “Preference
Page”, now TV screen shows as below:
Press Up or Down to select “Default” on remote, Press OK to exit reset.
Software upgrade finish.
Input password “811502” on remote, TV screen showing as below:
Upgrade File detected
--Preference Page--
TV type PAL
Audio CHI English
Subtitle CHI French
Disc menu CHI Spanish
Parental Chinese
Japanese
Default Korean
Russian
Tjai
Upgrade?
Press PLAY to start
Upgrading
CPU version check
1.Downloading the software form the website that Philips supports
1.Keep press PLAY/PAUSE and STOP buttons,plug into the power cord at one time,
TV showing as below:
2.Put in the Software CD Disc or USB,when it is loading,
the TV screen shows as below:
Waiting half to one minute,till the TV screen showing disappear.
Turn off electrical source and reopen.
http://www.philips.com/support
Ver :
Date
Time
Region code
MCD710 / xxxx
mm dd yyyy
hh : mm : ss
x
4-1
SET BLOCK DIAGRAM
5 - 1 5 - 1
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