Philips FWC139, MAS139 User manual

Version 1.1
FWC139, MAS139
©3141 785 30921
Mini System
all versions
Published by YT 0610 Service Audio. 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.
Handling chip components............................................................ 1-1
Service tools.................................................................................. 1-1
Leadfree and safety information ................................................... 1-2
Technical specification .................................................................. 2-1
Service measurement setup ......................................................... 2-2
Connections and controls ..................................................... 3-1...3-2
Disassembly diagram............................................................ 4-1...4-2
Block diagram ............................................................................... 5-1
Wiring diagram .............................................................................. 5-2
Key / LCD board
circuit diagram.......................................................................... 6-1
layout diagram.......................................................................... 6-2
Cassette board
circuit diagram.......................................................................... 7-1
layout diagram.......................................................................... 7-2
Main board
circuit diagram (Tuner & CD) ................................................... 8-1
circuit diagram (Power & Supply)............................................. 8-2
layout diagram (main board) ............................................ 8-3...8-4
layout diagram (supply board) ......................................... 8-5...8-6
Exploded view diagram................................................................. 9-1
Accessories and Mechanical partslist........................................... 9-2
Electrical partslist .............................................................. 10-1...10-2
TABLE OF CONTENTS

1 - 1
HANDLING CHIP COMPONENTS

1 - 2

2 - 1
GENERAL:
Mains voltage : 110-127/220-240V Switchable
220-230V (MAS139/77 only)
Mains frequency : 50/60 Hz
Power consumption : < 50W max.
< 5W at standby
Clock accuracy : 4 seconds per day
Dimension center unit : 220 x 292 x 285 mm
Dimension speaker : 190 x 292 x 182 mm
Weight (with/without speaker box)
: 4.9 /2.3 Kgs
TUNER:
FM
Tuning range : 87.5 – 108 MHz
IF Frequency : 10.7 MHz r20kHz
Aerial input : 75 :pigtail wire
Sensitivity at 26sb S/N : < 18 PV
Selectivity at 600 kHz
Bandwidth : > 25 dB
IF rejection : > 75 dB
Image rejection : > 25 dB
Distortion : < 3%
Crosstalk : > 18 dB
MW
Tuning range
9 kHz grid : 531 – 1602 kHz
10 kHz grid : 530 – 1700 kHz
IF Frequency : 455 kHz r1kHz
Aerial input : Loop antenna
Sensitivity at 26sb S/N : < 4.0 mV/M
Selectivity at 18 kHz
Bandwidth : > 18 dB
IF rejection : > 45 dB
Image rejection : > 28 dB
Distortion : < 5%
AMPLIFIER:
Output power : 2 x 10 W RMS
Speaker impedance : 8 ohm
Frequency response
Within r3dB : 63Hz – 16 kHz
Hyper bass sound ON : 10dB r3dB at 80Hz
Digital sound control : Rock/Pop/Jazz/Classic
Headphone output : 32 mW r2dB at 32 :
CASSETTE RECORDER:
Number of tracks : 2 x 2 stereo
Tape speed : 4.76 cm/sec +2.5/-1.5%
Wow and flutter : < 0.4% DIN
Fast-wind/rewind time : < 130 sec. With C-60
Bias frequency : 75 r10 kHz
R/P frequency response : 125 – 8 kHz (8 dB)
Signal to noise radio : > 35 dB with type 1 tape
COMPACT DISC:
Number of programming track : 32
Frequency response
Within r1.5 dB : 20 Hz – 20 kHz
Signal/Noise ratio : 50 dB/A-weighted
Distortion at 1 kHz : < 3%
Channel separation at 1 kHz : > 25 dB
Support disc format :
Disc format ISO9660,
Single session CD
Max. albums: 25,
Max. titles: 255
Bit rate: 128 bits (recommended)
SPECIFICATION

2 - 2
SERVICE MEASUREMENT
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
Tuner FW
Use a bandpass filter to eliminate hum (50Hz, 100Hz) and disturbance from the pilottone (19kHz, 38kHz).
Ri=50
½
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 250kHz) to eliminate hum (50Hz, 100Hz).
RF Generator
e.g. PM5326
Ri=50
½
L
R
LEVEL METER
e.g. Sennheiser UPM550
with FF-filter
S/N and distortion meter
e.g. Sound Technology ST1700B
DUT
CD RECORDER
Use Audio Signal Disc SBC429 4822 397 30184
(replaces test disc 3)
Use Universal Test Cassette Fe SBC420 4822 397 30071
L
R
LEVEL METER
e.g. Sennheiser UPM550
with FF-filter
S/N and distortion meter
e.g. Sound Technology ST1700B
DUT
LF Generator
e.g. PM5110
Ri=50
½

3 - 1
CONNECTION AND CONTROLS
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#ONTROLS
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FOR#$  PROGRAMSTRACKSANDREVIEWSTHE
PROGRAM
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FORCLOCKTIMER  ADJUSTSTHEHOURSANDMINUTES
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FOR4UNER  SELECTSWAVEBAND-7&-
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8n
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4APE$ECK/PERATION
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FORWARDSTHETAPE
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OPENSTHETAPECOMPARTMENT
0!53%Å PAUSESRECORDINGORPLAYBACK
2%0%!4
FOR#$  REPEATSATRACK#$PROGRAMME
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CURRENTTRACKPREVIOUSNEXTTRACK
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[0OWERSWITCH
n TURNSOFFTHEPOWERSUPPLYTOTHESYSTEM

3 - 2
CONNECTION AND CONTROLS
0REPARATIONS
2EARCONNECTIONS 4HETYPEPLATEISLOCATEDATTHEBACKOFTHE SYSTEM
0OWER
n "EFORECONNECTINGTHE!#POWERCORDTOTHE
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3PEAKERS#ONNECTION
&RONT3PEAKERS #ONNECTTHESPEAKERWIRESTOTHE30%!+%23 TERMINALSRIGHTSPEAKERTO2)'(4ANDLEFT SPEAKERTO,%&4COLOUREDMARKEDWIRETO +ANDBLACKUNMARKEDWIRETO- &ULLYINSERTTHESTRIPPEDPORTIONOFTHESPEAKER WIREINTOTHETERMINALASSHOWN .OTES n &OROPTIMALSOUNDPERFORMANCEUSETHE SUPPLIEDSPEAKERS n $ONOTCONNECTMORETHANONESPEAKERTOANY ONEPAIROF
+

-
SPEAKERTERMINALS
n $ONOTCONNECTSPEAKERSWITHANIMPEDANCE LOWERTHANTHESPEAKERSSUPPLIED0LEASEREFERTO THE30%#)&)#!4)/.3SECTIONOFTHISMANUAL
SPEAKER
RIGHT
SPEAKER
LEFT
)NSERTINGBATTERIESINTOTHE REMOTECONTROL )NSERTTWOBATTERIESTYPE2OR!!!INTOTHE
REMOTECONTROLWITHTHECORRECTPOLARITYAS
INDICATEDBYTHEhvANDhvSYMBOLSINSIDE THEBATTERYCOMPARTMENT
#!54)/. n2EMOVEBATTERIESIFTHEYAREEXHAUSTED ORWILLNOTBEUSEDFORALONGTIME n$ONOTUSEOLDANDNEWORDIFFERENT TYPESOFBATTERIESINCOMBINATION n"ATTERIESCONTAINCHEMICALSUBSTANCES SOTHEYSHOULDBEDISPOSEDOFPROPERLY
0REPARATIONS

xx
4 - 1
DISASSEMBLY DIADRAMS
A
A. Remove CD Door
B2 B3
B1
B. Remove Top Cabinet
B1: Remove screws SP 3x6 - 6 pcs.
B2: Remove screws MP 3x10 - 4 pcs.
B3: Remove screws MP 3x10 - 4 pcs.

4 - 2
DISASSEMBLY DIADRAMS
4 - 2
C1
C2
C3
C. Remove CD Loader
C1: Remove screws SP 3x8 - 2 pcs.
C2: Remove screws SP 3x15 - 2 pcs.
C3: Remove screws SP 3x10 - 1 pcs.
D1
D. Remove Bottom Cabinet
D1: Remove screws SP 3x10 - 2 pcs.
E1
E. Remove Main PCB Assy
D1: Remove screws SP 3x10 - 2 pcs.
F3
F2
F1
F. Remove Key Board Assembly
F1: Remove screws SP 3x8 - 10 pcs.
F2: Remove screws SP 3x8 - 2 pcs.
F3: Remove screws SP 3x8 - 4 pcs.

5 - 1 5 - 1
SET BLOCK DIAGRAM

5 - 2 5 - 2
"/!2$
"/!2$
"/!2$
"/!2$
"/!2$
SET WIRING DIAGRAM

6 - 16 - 1
CIRCUIT DIAGRAM - KEY / LCD BOARD

6 - 2 6 - 2
LAYOUT DIAGRAM - KEY / LCD BOARD

7 - 17 - 1
CIRCUIT DIAGRAM - CASSETTE BOARD

7 - 2
LAYOUT DIAGRAM - CASSETTE BOARD
7 - 2

8 - 1 8 - 1
CIRCUIT DIAGRAM - TUNER & CD PART

8 - 2
8 - 2
CIRCUIT DIAGRAM - POWER & SUPPLY PART

8 - 3 8 - 3
COPPER SIDE
COMPONENT SIDE
LAYOUT DIAGRAM - MAIN BOARD (Component side)

8 - 4
LAYOUT DIAGRAM - MAIN BOARD (Copper side)
8 - 4
COPPER SIDE

8 - 5 8 - 5
LAYOUT DIAGRAM - POWER SUPPLY BOARD (Component Side)