Philips-MCM-1050-B-Service-Manual(1) 电路图 维修手册.pdf

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1、Published by Sophie-KM 122901 AVMPrinted in the Netherlands MCM1050B/12/58 Subject to modi cationEN Micro Audio System egaP s t netnoCContentsPage Copyright 2011 Philips Consumer Electronics B.V. Eindhoven, The Netherlands. All rights reserved. No part of this publication may be reproduced, stored i

2、n a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, or otherwise without the prior permission of Philips. Version 1.0 1 Technical Specification and Connection Facilities 2 Laser Beam Safety Precautions. 2-1 3 Important Safety Precautions . 3-1 to 3

3、-2 4 Safety Check After Servicing . 4-1 6 Standard Notes For Servicing,Lead Free Requirements Rin 22k Output Power(*1) At THD=10%, 1kHz sinewave MCM1050 (ROP,10%) MCM1050 (Max Power,30%) Main Operation for / all version (rms) 5W 1dB 2X12W -1dB Tuner output power(rms) 5W 1dB NA Frequency Response( 3d

4、B) 60Hz-20kHz Loudspeaker(Boxes): Separable speaker box Refer to package document of Speaker Box Assy Speaker driver Impedance: Right/Left: 4 40 Hz 20kHz(-3db) : refoowbuS REMARKS: Electrical Parameters are to be measured at Speaker Terminals across rated impedance Load(4ohm) with Rated Input Signal

5、 in CD Mode setting in DBB/Loudness Off and Pre-eq at Flat unless specified otherwise. *- measure max volume power with 1V MP3-link input 3.3 TUNER FM use Silicon Lab Si4704/4705(w/RDS) GENARAL PART WAVE RANGE VERSIONTOLERANCE TUNING GRID FM 87.5 108.00 MHz /12 QUARTZ PRECISION 50kHz FM 87.5 108.00

6、MHz /37 QUARTZ PRECISION 100kHz AERIAL FM : PIG TAIL ANT WIRE 75 ELECTRICAL DATA t i nU t im i L moN MF fBd 62 02 tn i oP gn i t imi L Bd 3 - 14 53 )edom oeret s ta(y t i v i t i sneS gn i nuT hcraeS Search time digital tuning system. - 60 S zHM 7.01 FI Bd 15 84 gn i te i uQ Bd 64 - oeretS 54 05 muH

7、 no i ta l udoM 54 05 o i taR N/S Bd 4- 0 esreveR no i tac i f i l pmA % 3 2 ) zHk 57 . v eD qrF ,Vm1 FR ( no i t rot s iD Overall Frequency Response: 63Hz 12.5KHz - 3 dB Channel separation:400 / 1000 / 5000 Hz. RF input: 68 dBf 26/30/ 20 20/26/ 18 dB Frequency (MHz) Noise Limited Sensitivity 26 dB

8、Image Rejection IF Rejection Large Signal Handling Selectivity S9/300 kHz 22 0001 46 03 81.moN MF )1* ( 81 005 54 52 22.m i L 0.88 22 0001 46 03 81.moN MF )1* ( 81 005 54 52 22.m i L 0.89 54 fBd 611 06 03 81.moN MF 52 fBd 801 56 52 22.m i L 0.701 Units dBf DB dB mV/m dB Susceptibility to unwanted si

9、gnals(CPU,SMPS,AMP,DSP ): Limited(d B) Normal (dB) Remark -15dB -20dB Refer to selfpollution curve 1-8 Technical Specification and Connection Facilities Laser Beam Safety Precautions This Blu-Ray player uses a pickup that emits a laser beam. The laser beam is emitted from the location shown in the f

10、igure. When checking the laser diode, be sure to keep your eyes at least 30 cm away from the pickup lens when the diode is turned on. Do not look directly at the laser beam. CAUTION: Use of controls and adjustments, or doing procedures other than those specified herein, may result in hazardous radia

11、tion exposure. Location: Inside Top of Blu-Ray mechanism. Do not look directly at the laser beam coming from the pickup or allow it to strike against your skin. Drive Mechanism Assembly Laser Beam Radiation Laser Pickup Turntable 2-1 Electronics N.V. bears no responsibility for improper wall mountin

12、g that results in accident, injury or damage. For speakers with stands, use only the supplied stands. Secure the stands to the speakers tightly. Place the assembled stands on flat, level surfaces that can support the combined weight of the speaker and stand. Never place the product or any objects on

13、 power cords or on other electrical equipment. If the product is transported in temperatures below 5C, unpack the product and wait until its temperature matches room temperature before connecting it to the power outlet. Visible and invisible laser radiation when open. Avoid exposure to beam. Do not

14、touch the disc optical lens inside the disc compartment. Risk of overheating! Never install this product in a confined space. Always leave a space of at least four inches around the product for ventilation. Ensure curtains or other objects never cover the ventilation slots on the product. Risk of co

15、ntamination! Do not mix batteries (old and new or carbon and alkaline, etc.). Remove batteries if they are exhausted or if the remote control is not to be used for a long time. Batteries contain chemical substances, they should be disposed of properly. Product care Do not insert any objects other th

16、an discs into the disc compartment. Do not insert warped or cracked discs into the disc compartment. Remove discs from the disc compartment if you are not using the product for an extended period of time. Only use microfiber cloth to clean the product. Important Important Safety Precautions Read and

17、 understand all instructions before you use your home theater. If damage is caused by failure to follow instructions, the warranty does not apply. Safety Riskof electricshock or fire! Never expose the product and accessories to rain or water. Never place liquid containers, such as vases, near the pr

18、oduct. If liquids are spilt on or into the product, disconnect it from the power outlet immediately. Contact Philips Consumer Care to have the product checked before use. Never place the product and accessories near nakedames or other heat sources, including direct sunlight. Never insert objects int

19、o the ventilation slots or other openings on the product. Where the mains plug or an appliance coupler is used as the disconnect device, the disconnect device shall remain readily operable. Disconnect the product from the power outlet before lightning storms. When you disconnect the power cord, alwa

20、ys pull the plug, never the cable. Riskof short circuit orre! Before you connect the product to the power outlet, ensure that the power voltage matches the value printed on the back or bottom of the product. Never connect the product to the power outlet if the voltage is different. Risk of injury or

21、 damage to the home theater! For wall-mountable products, use only the supplied wall mount bracket. Secure the wall mount to a wall that can support the combined weight of the product and the wall mount. Koninklijke Philips 3-1 Caution: These servicing instructions are for use by qualified service p

22、ersonnel only.To reduce the risk of electric shock do not perform any servicing other than that contained in the operating instructions unless you are qualified to do so. Disposal of your old product and batteries Your product is designed and manufactured with high quality materials and components,

23、which can be recycled and reused. When this crossed-out wheeled bin symbol is attached to a product it means that the product is covered by the European Directive 2002/96/EC. Please inform yourself about the local separate collection system for electrical and electronic products. Please act accordin

24、g to your local rules and do not dispose of your old products with your normal household waste. Correct disposal of your old product helps to prevent potential negative consequences for the environment and human health. Your product contains batteries covered by the European Directive 2006/66/EC, wh

25、ich cannot be disposed with normal household waste. Please inform yourself about the local rules on separate collection of batteries because correct disposal helps to prevent negative consequences for the environmental and human health. Important Safety Precautions 3-2 4-1 Safety Check after Servici

26、ng Examine the area surrounding the repaired location for damage or deterioration. Observe that screws, parts, and wires have been returned to their original positions. Afterwards, do the following tests and confirm the specified values to verify compliance with safety standards. 1. Clearance Distan

27、ce When replacing primary circuit components, confirm specified clearance distance (d) and (d) between soldered terminals, and between terminals and surrounding metallic parts. (See Fig. 1) Table 1: Ratings for selected area Note:This table is unofficial and for reference only. Be sure to confirm th

28、e precise values. 2. Leakage Current Test Confirm the specified (or lower) leakage current between B (earth ground, power cord plug prongs) and externally exposed accessible parts (RF terminals, antenna terminals, video and audio input and output terminals, microphone jacks, earphone jacks, etc.) is

29、 lower than or equal to the specified value in the table below. Measuring Method (Power ON): Insert load Z between B (earth ground, power cord plug prongs) and exposed accessible parts. Use an AC voltmeter to measure across the terminals of load Z. See Fig. 2 and the following table. Table 2: Leakag

30、e current ratings for selected areas Note:This table is unofficial and for reference only. Be sure to confirm the precise values. AC Line VoltageClearance Distance (d), (d) 110V220V3.2 mm (0.126 inches) AC Line VoltageLoad ZLeakage Current (i)Earth Ground (B) to: 110V220V 0.15 F CAP. when removing e

31、ntire flat pack-IC, first apply soldering iron to center of the flat pack-IC and heat up. Then remove (glue will be melted). (Fig. S-1-6) 4.Release the flat pack-IC from the CBA using tweezers. (Fig. S-1-6) CAUTION: 1.The Flat Pack-IC shape may differ by models. Use an appropriate hot-air flat pack-

32、IC desoldering machine, whose shape matches that of the Flat Pack-IC. 2.Do not supply hot air to the chip parts around the flat pack-IC for over 6 seconds because damage to the chip parts may occur. Put masking tape around the flat pack-IC to protect other parts from damage. (Fig. S-1-2) Fig. S-1-1

33、Standard Notes for Servicing, Lead Free Requirements when removing entire flat pack-IC, first apply soldering iron to center of the flat pack-IC and heat up. Then remove (glue will be melted). (Fig. S-1-6) 4.Release the flat pack-IC from the CBA using tweezers. (Fig. S-1-6) With Iron Wire: 1.Using d

34、esoldering braid, remove the solder from all pins of the flat pack-IC. When you use solder flux which is applied to all pins of the flat pack-IC, you can remove it easily. (Fig. S-1-3) 2.Affix the wire to a workbench or solid mounting point, as shown in Fig. S-1-5. 3.While heating the pins using a f

35、ine tip soldering iron or hot air blower, pull up the wire as the solder melts so as to lift the IC leads from the CBA contact pads as shown in Fig. S-1-5. 4.Bottom of the flat pack-IC is fixed with glue to the CBA; when removing entire flat pack-IC, first apply soldering iron to center of the flat

36、pack-IC and heat up. Then remove (glue will be melted). (Fig. S-1-6) 5.Release the flat pack-IC from the CBA using tweezers. (Fig. S-1-6) Note:When using a soldering iron, care must be taken to ensure that the flat pack-IC is not being held by glue. When the flat pack-IC is removed from the CBA, han

37、dle it gently because it may be damaged if force is applied. Hot-air Flat Pack-IC Desoldering Machine CBA Flat Pack-IC Tweezers Masking Tape Fig. S-1-2 Flat Pack-IC Desoldering Braid Soldering Iron Fig. S-1-3 Fine Tip Soldering Iron Sharp Pin Fig. S-1-4 To Solid Mounting Point Soldering Iron Iron Wi

38、re or Hot Air Blower Fig. S-1-5 Fine Tip Soldering Iron CBA Flat Pack-IC Tweezers Fig. S-1-6 6-3 Standard Notes for Servicing, Lead Free Requirements & Handling Flat Pack IC 2. Installation 1.Using desoldering braid, remove the solder from the foil of each pin of the flat pack-IC on the CBA so you c

39、an install a replacement flat pack-IC more easily. 2.The “” mark on the flat pack-IC indicates pin 1. (See Fig. S-1-7.) Be sure this mark matches the 1 on the PCB when positioning for installation. Then presolder the four corners of the flat pack-IC. (See Fig. S-1-8.) 3.Solder all pins of the flat p

40、ack-IC. Be sure that none of the pins have solder bridges. Instructions for Handling Semi- conductors Electrostatic breakdown of the semi-conductors may occur due to a potential difference caused by electrostatic charge during unpacking or repair work. 1. Ground for Human Body Be sure to wear a grou

41、nding band (1 M ) that is properly grounded to remove any static electricity that may be charged on the body. 2. Ground for Workbench Be sure to place a conductive sheet or copper plate with proper grounding (1 M ) on the workbench or other surface, where the semi-conductors are to be placed. Becaus

42、e the static electricity charge on clothing will not escape through the body grounding band, be careful to avoid contacting semi-conductors with your clothing. Example : Pin 1 of the Flat Pack-IC is indicated by a mark. Fig. S-1-7 Presolder CBA Flat Pack-IC Fig. S-1-8 CBA Grounding Band Conductive S

43、heet or Copper Plate 1M 1M CBA Standard Notes for Servicing, Lead Free Requirements & Handling Flat Pack IC 6-4 Troubleshooting FLOW CHART NO.1 FLOW CHART NO.2 9-1 Yes Yes No Yes Yes Yes Yes check staic noisy circuitCPU circuit and change components no sound from radio check if speaker is okcheck an

44、d change speaker and output wire check if public circuit of whole unit AMP circuit is ok check radio tube and periphery circuit check if power supply circuit of whole unit is ok check and change transormer of power supply and power commutate circuit check if output of radio is normalcheck public cir

45、cuit and circuit of power supply check radio controlled circuitcheck and change the related components of radio controlled circuit check if power supply of radio is normal check and change related components of power supply circuit check if radio circuit an components of around it is normal check an

46、d change components of around it No No No No No No No sound from whole unit FLOW CHART NO.3 Yes No Yes No Yes no sound from CD check if CD output is normal check if CD controlled circuit is ok check and change the related components of CD controlled circuit check public circuitpower supply circuit a

47、nd change related components check if the related components of CD signal channeltie wiressocket is normal change decoding board No check and change the related components of CD tie wiressocket Troubleshooting 9-2 Yes No Yes No check and change good laser head assy check if laser head assy can light

48、 normally decoding board is broken check if tie wires of laser head assy is loosen and broken laser head assy broken Yes check if supply +12V of decoding board is normal no search from CD check steady circuit No 5.6V HEADSET DRIVER PT2309 USB (host 2.0) D-/D+ RF IIC DVD/CD_RL MP3_Link HP_OUT MP3_LR_

49、IN FM_LR_IN A3.3V MAIN CHIPSET ALi5673 M3.3V FM(RDS) si4705 LCD DISPLAY SCREEN LCD BUS MCU3.3V M3.3V 9V M3.3V A3.3V FLASH MX25L1605D DA11 WXD-8210D CD_5.6V LOADER MOTOR DRIVER AM5766 CD_5.6V OPEN/CLOSEDRIVER A3.3V CD_5.6V BD3490FS 8OHM_5W*2 FR_OUTAMPLIFIER TDA7491P FL_OUT LCD Controller AS6622Q MCU R5F21266 IR IR AD_KEY Stb,