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Mini System FWM986/55
TABLE OF CONTENTS
Page
Location of PC Boards ......................................................... 1-2
Versions Variation & Package ............................................. 1-2
Specifications ....................................................................... 1-3
Measurement Setup ............................................................. 1-4
Service Aids, Safety Instruction, etc ..................................... 1-5
CD Playability Check ..................................................1-6 to 1-8
Repair Instructions................................................................... 2
Disassembly Instructions & Service positions ......................... 3
Set Block Diagram & Set Wiring Diagram ............................... 4
Key & Karaoke & USB Jack Board .......................................... 5 US B
Main Board .............................................................................. 6 RIP-ALL
Power Board ............................................................................ 7
AMP Board .............................................................................. 8
Control Board .......................................................................... 9
CD (Servo) Board .................................................................. 10
Mechanical Exploded View & Parts List ................................ 11
Electrical Parts List ................................................................ 12
Revision List .......................................................................... 13
CLASS 1
©
Copyright 2007 Philips Consumer Electronics B.V. Eindhoven, The Netherlands LASER PRODUCT
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 SL-ET 0739 Service Audio Printed in The Netherlands Subject to modification © 3141 785 32101
Version 1.1
LOCATION OF PCB BOARDS
SERV O PCB
KEYPCB
AMP PCB
CONTRO L PCB
MAI N PCB
KARAOKE PCB
POWE R PCB
USBPCB
VERSION VARIATION:
Type/Versions FWM986
Features & Board in used /55
Main (Output Power-1200W)
Pow er Voltage (110V~240V)
Specifications
English
AMPLIFIER FRONT SPEAKER
Total output power ............................................. 1200W System full range satellite
Front .................................................. 250W per channel Impedance ........................................................................ 5 1
Rear .................................................... 100W per channel Speaker drivers .......................... 2x6.5" 250w woofer
Subwoofer ...................................... 250W per channel ......................................................... 2x2" 250w tweeter
Signal-to-noise ratio ............................. 60 dBA (IEC) Frequency response ............................... 50Hz-20KHz
Frequency response .......................... 50 18000 Hz Dimensions(w x h x d) ... 235 x 457 x 260(mm)
Input sensitivity Weight ............................................................ 6.25 kg/ each
AUX ....................................................... 1000/2000 mV
Output REAR SPEAKER
Headphones ............................................................. 32 1 System full range satellite
(1) (3 1, 1 kHz, 10% THD)
Impedance ........................................................................ 8 1
Speaker driver ....... 2x4" 100w full-range speaker
CD/MP3-CD PLAYER Frequency response ............................... 50Hz-20KHz
Number of programmable tracks ......................... 99 Dimensions(w x h x d) ... 140 x 311 x 250(mm)
Frequency response ............. 50 20000 Hz -3dB Weight ............................................................ 2.67 kg/ each
Signal-to-noise ratio ............................................ 60 dBA
Channel separation ......................... 35 dBA (1 kHz) SUBWOOFER
Total harmonic distortion ..................................... < 1% Impedance ........................................................................ 5 1
MPEG 1 Layer 3 (MP3-CD) .......... MPEG AUDIO Subwoofer drivers ........................ 10" 250w woofer
MP3-CD bit rate ....................................... 32-256 kbps Frequency response ............................... 45Hz-150Hz
(128 kbps advised) Dimensions(w x h x d) .... 303 x 455 x 357(mm)
Sampling frequencies ....................... 32, 44.1, 48 kHz Weight ......................................................... 10.37 kg/ each
TUNER GENERAL
FM wave range ................................... 87.5 108 MHz Material/finish ................................... Polystyrene/Metal
MW wave range (9 kHz) ............. 531 1602 kHz AC Power ........................... 110 127 / 220 240 V
MW wave range (10 kHz) ........... 530 1700 kHz ....................................................... 50/60 Hz Switchable
Tuning grid ............................................................ 9/10 kHz Power Consumption
Number of presets ........................................................ 40 Active ........................................................................ 300 W
Antenna Standby .................................................................. ) 15 W
FM ....................................................................... 75 1 wire Dimensions (w x h x d) .. 269 x 311 x 412 (mm)
MW ............................................................ Loop antenna Weight (without speakers) ................................. 5.6 kg
USB PLAYER
USB ................................................................. 12 Mb/s, V1.1 Specifications and external appearance are
......................................... support MP3 and WMA files subject to change without notice.
Number of albums/folders ............ maximum 512
Number of tracks/titles ...................... maximum 999
1-4
Measurement Setup
Tuner FM
Tuner AM (MW,LW)
CD Recorder
1-5
SERVICE AIDS
Service Tools: Compact Disc:
Universal Torx driver holder .................................4822 395 91019 SBC426/426A Test disc 5 + 5A ...........................4822 397 30096
Torx bit T10 150mm ...........................................4822 395 50456 SBC442 Audio Burn-in test disc 1kHz .................4822 397 30155
Torx driver set T6-T20 .........................................4822 395 50145 SBC429 Audio Signals disc .................................4822 397 30184
Torx driver T10 extended .....................................4822 395 50423 Dolby Pro-logic Test Disc ....................................4822 395 10216
GB WARNING ESD
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.
GB
Safety regulations require that the set be restored to its original CLASS 1
LASER PRODUCT
condition and that parts which are identical with those specified,
be used
Safety components are marked by the symbol ! .
Lead free
1-6
INSTRUCTIONS ON CD PLAYABILITY
Customer complaint
"CD related problem"
Set remains closed!
1
check playability
playability N
ok ?
Y 3
For flap loaders (= access to CD drive possible)
"fast" lens cleaning cleaning method 4 is recommended
check playability
Standard repair procedure
playability N
ok ?
4
clean the lens
Y
check playability
Play a CD
for at least 10 minutes
check playability
playability Y
ok ?
N
playability N
ok ? return set
5
check "EYE-Pattern"
Y
add Info for customer
"SET OK" 2 EYE-Pattern N
ok ?
Y
replace CD Drive
return set
6
check Laser current
return set
Laser current N
ok ?
1 - 7 For description - see following pages
Y
replace CD Drive
7
check CD Drive offsets
return set
Y CD Drive offsets N
ok ?
replace Signal Processor replace CD Drive
return set return set
1-7
INSTRUCTIONS ON CD PLAYABILITY
1 4
PLAYABILITY CHECK LIQUID LENS CLEANING
Before touching the lens it is advised to clean the
surface of the lens by blowing clean air over it.
For sets which are compatible with CD-RW discs
This to avoid that little particles make scratches on
use CD-RW Printed Audio Disc ....................7104 099 96611
the lens.
TR 3 (Fingerprint)
TR 8 (600µ Black dot) maximum at 01:00
Because the material of the lens is synthetic and coated
· playback of these two tracks without audible disturbance with a special anti-reflectivity layer, cleaning must be done
playing time for: Fingerprint 10seconds with a non-aggressive cleaning fluid. It is advised to use
Black dot from 00:50 to 01:10 "Cleaning Solvent B4-No2", available with codenumber
· jump forward/backward (search) within a reasonable time 4822 389 10026.
The actuator is a very precise mechanical component and
may not be damaged in order to guarantee its full function.
For all other sets Clean the lens gently (don't press too hard) with a soft and
use CD-DA SBC 444A..................................4822 397 30245 clean cotton bud moistened with the special lens cleaner.
TR 14 (600µ Black dot) maximum at 01:15
TR 19 (Fingerprint) The direction of cleaning must be in the way as indicated in
TR 10 (1000µ wedge) the picture below.
· 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.
1-8
INSTRUCTIONS ON CD PLAYABILITY
5 6
EYE-PATTERN SIGNAL JITTER MEASUREMENT CD DRIVE LASER CURRENT MEASUREMENT
Measure the signal on the input of the Signal processor The laser current can be measured as a voltage drop on a
using an analog oscilloscope. Please find the exact resistor. The resistor is marked in every Service Manual.
measuring point in your Service Manual. The value depends on the type of CD drive.
11 D4
EYE-PATTERN D3 typical value most probably defect
10 D3
D2 VAMxxxx : 150-230mV 350mV
800mVpp D1
9 D2
MCDxx : 170-230mV 300mV
3893
8 D1
DA1x : 210-250mV 350mV
TB = 0.5µs/div VrefCD10
7 VRIN
VREF GE
DA2x : 175-200mV 250mV
2818
470R 47n
3895
HF-Amplifier 27K 6 IREF Use SBC444A (CD-DA) for measurement.
+5V_HF 3896
+3.3V
5 VDDA1
Laser power control
2887
47n
100R
2817
4u7
680R
100R
3905
3920
4 VSSA1 U >250mV
->Laser damaged !
2814
3n3
3897
33K
3 ISLICE
2813 3898
3902
2885
220u
1K5
HFIN 2 HFIN 3820
2816 2815
100p
4n7 220R
2,4V
7876 2883 3903 3904 +5V_HF +5V
BC847B 1 HFREF
22n
2876
470n
4R7
3901 1,8V 470n 3K3 3K3 LDON
(A-D)
2884
470n
560R 64
LDON
2882
1,2V
82p
2841
100n
470R to 3826,3827
3817
3819
3818
3909
47R
47R
47R
2877
3899
47u
3906
2,6V
CD_DA: 0V / CD_RW: 3V
3822
2878
100n
2881 2K7
10K
0,65V
7878 3923 4,6V
820R
3907
3908
560p
2K2
+3.3V
3821
BC847B
1R
7877 10K 3,9V 7811-A 3 0,17V
BC847B Sanyo 8
DA12T3 LM358D
2880
3,3V 3823 1
33p
Drive detection
See below examples of the signal. Amplitude should read at 7879
BC807-40
1K
3V
2 0,17V
2V 4
least 700mVpp using SBC444A. LASER DIODE
2879
2869
1n
47n
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.
good The values from diode A-D should read 0±10mV.
Diodes E and F are less critical.
CD Drive
Sanyo DA12T3
1800
VREF 16
VrefCD10
VCC 15
+5V_HF
E 14 E
E
E
D 13 D
D
B
C A A 12 A
A
D 11 B
B B
F
C 10 C
C
F 9 F
F
GND 8
bad
If the oscilloscope shows a signal like the `bad' one, and/or
the amplitude decreases within 1 minute - the CD drive has
If one of the offsets is higher than ±10mV the CD drive has
to be replaced.
to be replaced. Otherwise replace the Signal Processor.
2-1 2-1
System, etc. setting procedure
1) System Reset
a) press and hold "TUNER" and""ALBUM-" key
b) power on
c) VFD will display "VXXX-X"
d) Press""PROGRAM" key, VFD display "NEW"
2) Check on the Software Version
a) press and hold "TUNER" and""ALBUM-" key
b) power on
c) VFD will display "VXXX-X"
3)Updating new software
a) insert USB
b) press "USB" key to select USB mode
c) press and hold "STOP" key
d) VFD will display "UPGRADE"
e) when finishing upgrade ,system will automatic go to
standby mode
CAUTION !
This information is confidencial and may not
be distributed. Only a qualified service
person should reprogram the Region Code.
2-2 2-2
REPAIR INSTRUSTRATOR
3-1 3-1
DISMANTLE INSTRUCTIONS
1. 2. op back panel Assembly
each on the back panel as show in figure 3
1 screws "C" each on the left& right sides as shown in figure 4
C
AI
Figure1 Figure2 Figure3 Figure4
3. Dismantling of the DVD LOADER Assembly 4 . Dismantling of the BOTTOM PANEL Assembly
Power On ,Open the door and remove the DVD DOOR from the LOADER as shown in figure5 Loosen 2 screws "F" on the bottom panel as shown in figure 6.
F
D
Figure5 (D1--D4) Figure6
4-1 4-1
SET BLOCK DIAGRAM
4-2 4-2
SET WIRING DIAGRAM
5-1 5-1
LAYOUT DIAGRAM - KEY BOARD
TOP VIEW
LAYOUT DIAGRAM - KEY BOARD
BOTTOM VIEW
5-2 5-2
CIRCUIT DIAGRAM - KEY BOARD
CN204
4 TP200
P4 TP201
3 P3
2 TP202
P2 TP203
1 P1
CON_4PIN_FFC_1.27mm
SW201 SW202 SW203 SW205
DISC2
OPEN/CLOSE DS_CHANGE DISC1 DISC3
SW204
0V 0. 3V 0. 595V 0. 873V 1. 185V
R244 R249 R247 R246 R256
100 1K 2K2 3K6 5K6
5-3 5-3
LAYOUT DIAGRAM - KARAOKE BOARD
TOP VIEW
LAYOUT DIAGRAM - KARAOKE BOARD
BOTTOM VIEW
5-4 5-4
LAYOUT DIAGRAM - KARAOKE BOARD
5 4 3 2 1
MIC_VCC
+12V MIC_VCC
R355A ECHO_VCC
2K7 U353 LM78L08 U352 LM78L05
R394 R395
3 1 3 1 ECHO_VCC
R353A R354A VIN OUT VIN OUT
GND
GND
D C355A D
330K 2K7 + 51R 51R
3
+
+
C380 C599 C598
2
2
J350A C354A 1000pF 100uF 0.1uF
2 100uF
Phone Jack 0.47uF
C352A
1
9 L350A R351A
1
MIC1_out
7 2 Q350A Q351A
8 + BC547B BC557B
10uH 2K2
3
0.47uF AGND AGND AGND AGND AGND +12V
4
5
6
3
R350A C350A R352A C353A
47K 4700pF 56K 1000pF R370A R371A
47R 47R
MIC_VCC 3
AGND 2
AGND 1
R356A R359A CN352
MIC1_DET 3K9 CON_3PIN_JST_2mm_90C
1K
D351A R358A
1
Q352A 2 RV591
TP304 BC547B 50K