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SPEAKERS

1-way Bass Reflex System
Impedance ........................................................................ 8

Ω

Speaker diameter ............................................................. 4”
Dimensions (w x h x d)..........14.6x23.6x18.5 (cm)

GENERAL

AC Power ........................... 110 – 127 / 220 – 240 V;

....................................................... 50/60 Hz Switchable

Dimensions (w x h x d) ....... 14.6x23.6x23.9 (cm)
Weight (with/without speakers) ..................................

................................................................................. 5.9 / 2.5 kg

Specifications and external appearance are
subject to change without notice.

AMPLIFIER

Total output power

........................................... 25 W (12.5 W per channel)

Signal-to-noise ratio ..........................

 62 dBA (IEC)

Frequency response ......... 63 – 16000 Hz, ± 3 dB

CD PLAYER

Frequency range .................................. 63 – 16000 Hz
Signal-to-noise ratio ............................................ 65 dBA

TUNER

FM wave range ................................... 87.5 – 108 MHz
MW wave range ................................ 531 – 1602 kHz

TECHNICAL SPECIFICATION

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Summary of Contents for Micro Hi-Fi System MCM285

Page 1: ...in any form or by any means electronic mechanical photocopying or otherwise without the prior permission of Philips CONTENTS Technical specification 1 2 Service measurement setup 1 3 Service aids 1 4 Instructions on CD playability 2 1 2 2 Disassembly diagram 3 1 Block diagram 4 1 Wiring diagram 4 2 Main board Circuit diagram 5 1 Layout diagram 5 2 5 3 Key board Circuit diagram 6 1 Layout diagram 6...

Page 2: ... cm Weight with without speakers 5 9 2 5 kg Specifications and external appearance are subject to change without notice AMPLIFIER Total output power 25 W 12 5 W per channel Signal to noise ratio 62 dBA IEC Frequency response 63 16000 Hz 3 dB CD PLAYER Frequency range 63 16000 Hz Signal to noise ratio 65 dBA TUNER FM wave range 87 5 108 MHz MW wave range 531 1602 kHz TECHNICAL SPECIFICATION 1 2 ...

Page 3: ...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 71...

Page 4: ...ng 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 ...

Page 5: ...T OK check playability N Y playability ok check playability check playability return set Customer complaint CD related problem fast lens cleaning 1 2 3 For flap loaders access to CD drive possible cleaning method 4 is recommended INSTRUCTIONS ON CD PLAYABILITY 2 1 Exchange CDM 1 4 For description see following pages ...

Page 6: ...viously 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 synthet...

Page 7: ...SET BLOCK DIAGRAM 4 1 4 1 ...

Page 8: ...SET WIRING DIAGRAM 4 2 4 2 ...

Page 9: ...5 1 5 1 CIRCUIT DIAGRAM MAIN BOARD ...

Page 10: ...5 2 5 2 LAYOUT DIAGARM MAIN BOARD COMPONENT SIDE VIEW ...

Page 11: ...5 3 LAYOUT DIAGARM MAIN BOARD COPPER SIDE VIEW 5 3 ...

Page 12: ...CIRCUIT DIAGRAM KEY BOARD 6 1 6 1 ...

Page 13: ...LAYOUT DIAGARM KEY BOARD COMPONENT SIDE VIEW 6 2 6 2 ...

Page 14: ...6 3 6 3 LAYOUT DIAGARM KEY BOARD COPPER SIDE VIEW ...

Page 15: ...11 12 13 14 15 16 17 18 22 26 27 30 29 25 28 EXPLODED VIEW DIAGRAM 7 1 7 1 ...

Page 16: ... DOOR D THOMSON SPRAY SILVER 26 996510015923 CD UBBE CUSHION ED CIBA 27 996510015924 CD UBBE CUSHION BLUE CIBA 28 996510015925 SANYO CD CLAMPER PLASTIC D68m 29 996510015926 PH MCM285 CD DUST COVER 30 996510015927 7261N CD PICK UP DUSTCOVER 31 994000004726 7831 GEAR MODE 0 8 32 994000004727 7831 GEAR STAND MODE 0 8 B 996510017868 TRANSF UL EML662272MT for 55 77 ACCESSORIES ACC 996510015929 AC CORD ...

Page 17: ...D610 996510010972 DIODE 1N4148 EP TP D612 996510013423 CHIP TAPE DIODEIN4148 SMT1206 D613 996510010972 DIODE 1N4148 EP TP D616 996510010972 DIODE 1N4148 EP TP D617 996500038828 ZENER DIODE 5 3V9 D801 996510010980 IR LED WHITE DIA 5mm 5308IC 15 F1 994000004782 FUSE 50T D5X20 1 6A 250V S B F2 996500038821 FUSE 2A 250V VDE FAST BLOW IC1 996510015912 IC LV23010V SSOP36 IC301 994000004778 IC TDA7269A 1...

Page 18: ...ENSOR AT136BV3 36KHz 3 3V J602 996510002273 ST PHONES JACK 3 5mm TC38 J603 996510002273 ST PHONES JACK 3 5mm TC38 LED1 996510015903 LED BLUE LA304B1PC 1A 02 SW630 994000004792 TACT SW 6X6MM H4 3 SW631 994000004792 TACT SW 6X6MM H4 3 SW632 994000004792 TACT SW 6X6MM H4 3 SW634 994000004792 TACT SW 6X6MM H4 3 SW636 994000004792 TACT SW 6X6MM H4 3 SW637 994000004792 TACT SW 6X6MM H4 3 SW638 994000004...

Page 19: ...REVISION LIST V Initial Release V P8 2 is revised Changed IC701 4 19 2010 Version 1 0 3141 785 32740 Version 1 1 3141 785 32741 9 1 ...

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