Philips FWM139 User manual

Version 1.0
FWM139, MAS339
©3141 785 31100
Mini System
all versions
Published by YT 0627 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
Set block diagram ......................................................................... 5-1
Set wiring diagram ........................................................................ 5-2
Circuit Diagram (part 1)
Circuit diagram (CPU / Display board)..................................... 6-1
Circuit diagram (AMP / Power board) ...................................... 6-2
Layout Diagram - CPU/Display & AMP/Power boards
Top view .................................................................................. 6-3
Bottom view.............................................................................. 6-4
Circuit Diagram (part 2)
Circuit diagram - Cassette part ................................................ 7-1
Circuit diagram - CD/MP3 part ................................................. 7-2
Circuit diagram - Tuner/Audio part ........................................... 7-3
Layout Diagram (main combi board)
Top view .................................................................................. 8-1
Bottom view.............................................................................. 8-2
Exploded view diagram................................................................. 9-1
Accessories and Mechanical partslist........................................... 9-2
Electrical partslist .............................................................. 10-1...10-3
TABLE OF CONTENTS

1 - 1
HANDLING CHIP COMPONENTS

1 - 2

2 - 1
GENERAL:
Mains voltage /05/12 : 220-240V
/55/77/78 : 110-127/220-240V Switchable
Mains frequency
/05/12 : 50 Hz
/55/77/78 : 50/60 Hz
Power consumption : < 50W max.
< 5W at standby
Clock accuracy : 2 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 20 W RMS
Speaker impedance : 8 ohm
Frequency response
Within r3dB : 63Hz – 16 kHz
Hyper bass sound ON : 8dB r3dB at 125Hz
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: 99, max. titles: 511
Supported sampling frequencies: 32 kHz, 44.1
kHz, 48 kHz
Bit rate : 32 – 256 (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