Philips-CEM-2000-B-Service-Manual 电路图 维修手册.pdf

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1、Version 1.1 CEM2000/00/55/51 3141 785 35131 Car entertainment system CEM2000X/78 Published by LX 1046 Service Audio Subject to modification Copyright 2010 Philips Consumer Electronics B.V. Eindhoven, The Netherlands All rights reserved. No part of this publication may be reproduced, stored in a retr

2、ieval system or transmitted, 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 Block diagram .3-1 Wiri

3、ng diagram .4-1 Main board Circuit diagram .5-1.5-5 Layout diagram.5-6.5-7 Panel board Circuit diagram .6-1 Layout diagram.6-2.6-3 Servo board Circuit diagram.7-1 Layout diagram .7-2.7-3 Exploded view diagram .8-1 Revision list .9-1 TECHNICAL SPECIFICATION 1 - 2 Power supply12 V DC (11 V - 16 V), ne

4、gative ground Fuse15 A Suitable speaker impedance 4 - 8 Maximum power output 45 W x 4 channels Continuous power output 22 W x 4 RMS (4 10% T.H.D.) Pre-Amp output voltage 2.0 V Aux-in level500 mV Dimensions (W x H x D)188 x 58 x 201 mm Weight1.47 kg Radio Frequency range - FM 87.5 - 108.0 MHz (100kHz

5、 per step in auto search and 50kHz per step in manual search) Frequency range - AM(MW) 522 - 1620 KHz (9 kHz) 530 - 1710 kHz (10 kHz) Usable sensitivity - FM 8 V Usable sensitivity - AM(MW) (S/N = 20 dB) 30 V General inforamtion Type /Versions: Features Board in used: CEM2000 Service policy SERVO BO

6、ARD MAIN BOARD * TIPS : C - Component Lever Repair. M - Module Lever Repair - Used /00/00 /5515/16/85/ Feature diffrence RDS VOLTAGE SELECTOR ECO STANDBY - DARK C/M C/M Type /Versions: CEM2000 /05/12/55 15/16/85/ VERSION VARIATION C/M C/M C C EuropeAPAC C C 1-3 LF Generator e.g. PM5110 Recorder Use

7、Universal Test Cassette CrO2SBC419 4822 397 30069 LEVEL METER e.g. Sennheiser UPM550 with FF-filter S/N and distortion mete e.g. Sound Technology ST170 L R DUT or Universal Test Cassette FeSBC420 4822 397 30071 LEVEL METER e.g. Sennheiser UPM550 with FF-filter S/N and distortion meter e.g. Sound Tec

8、hnology ST1700B L R DUT CD Use Audio Signal Disc (replaces test disc 3) SBC429 4822 397 30184 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 interferen

9、ce all AM-measurements have to be carried out in a Faradays 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. 7122 707 48001 LF Voltmeter e.g. PM2534 DUT RF Generator e.g. PM5326 S/N and d

10、istortion meter e.g. Sound Technology ST1700B Use a bandpass filter to eliminate hum (50Hz, 100Hz) and disturbance from the pilottone (19kHz, 38kHz). Ri=50? Tuner FM MEASUREMENT SETUP 1-4 SERVICE AIDS GBWARNING All ICs and many other semi-conductors are susceptible to electrostatic discharges (ESD).

11、 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. ESD CLASS 1 LASER PRODUCT GB Safety regulations require th

12、at 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 Set remains closed! N Y Play a CD for at least 10 minutes Y playability ok ? N playability ok ? add Info for customer SET OK check

13、 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 - s

14、ee following pages 1 PLAYABILITY CHECK For sets which are compatible with CD-RW discs use CD-RW Printed Audio Disc.7104 099 96611 TR 3 (Fingerprint) TR 8 (600 Black dot) maximum at 01:00 playback of these two tracks without audible disturbance playing time for: Fingerprint10seconds Black dot from 00

15、:50 to 01:10 jump forward/backward (search) within a reasonable time For all other sets use CD-DA SBC 444A.4822 397 30245 TR 14 (600 Black dot) maximum at 01:15 TR 19 (Fingerprint) TR 10 (1000 wedge) playback of all these tracks without audible disturbance playing time for: 1000 wedge10seconds Finge

16、rprint10seconds 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 cause

17、d 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 Reg

18、ional Service Organizations. 4 LIQUID LENS CLEANING Because the material of the lens is synthetic and coated with a special anti-reflectivity layer, cleaning must be done with a non-aggressive cleaning fluid. It is advised to use “Cleaning Solvent The actuator is a very precise mechanical component

19、and may not be damaged in order to guarantee its full function. Clean the lens gently (dont press too hard) with a soft and clean cotton bud moistened with the special lens cleaner. The direction of cleaning must be in the way as indicated in the picture below. Before touching the lens it is advised

20、 to clean the surface of the lens by blowing clean air over it. This to avoid that little particles make scratches on the lens. INSTRUCTIONS ON CD PLAYABILITY 2 - 2 SET BLOCK DIAGRAM 3 - 13 - 1 5 - 15 - 1 CIRCUIT DIAGRAM - MAIN BOARD MCU PART 5 - 2 5 - 2 CIRCUIT DIAGRAM - MAIN BOARD Power PART CIRCU

21、IT DIAGRAM - MAIN BOARD Radio PART 5 - 3 5 - 3 CIRCUIT DIAGRAM - MAIN BOARD Audio PART 1 5 - 45 - 4 CIRCUIT DIAGRAM - MAIN BOARD Audio PART 2 5 - 55 - 5 5 - 6 LAYOUT DIAGARM - MAIN BOARD TOP SIDE VIEW 5 - 6 LAYOUT DIAGARM - MAIN BOARD BOTTOM SIDE VIEW 5 - 75 - 7 CIRCUIT DIAGARM - PANEL BOARD 6 - 16

22、- 1 KEY2 KEY1 GND +5V REMOTE SYS_5V 2COLOR BT_LED LAMP_VCC ENCODER CE CLK DATA INH GND GND DO CLK CE OSC VSS VDD INH TRACK-UPTRACK-DN USB_5V USB_DN USB_UP AUX_R AUX_L GND 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46

23、47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 IC901 SC75823 R958 47K C901 680P R901 180 R902 220 R903 330 R904 470 R905 680 R906 1K R907 1K5 R908 2K2 R917 2K2 R918 1K5 R919 1K R920 680 R921 470 R922 330 R923 220 R924 180 SW1 FUNCTICN SW2 FOLDER SW3 FILE SW4 DBB SW5 EQ/SEL SW6 SOURCE SW7 BACK

24、 SW8 TUNE/SEEK-UP SW9 TUNE/SEEK-DN SW18 VOL- SW19 VOL+ SW20 EJ SW21 PRESET- SW22 PRESET + SW23 MENU SW25 DISP Q902 NC Q904 NC R939 NC R938 NC R963NC R936 NC R935 NC R937 NC R934 NC LED15 R+B LED16 R+B LED3 R+B LED4 R+B LED5 R+B LED6 R+B LED7 R+B LED8 R+B LED9 R+B LED10 R+B LED11 R+B LED12 R+B LED13

25、R+B LED14 R+B R927 82K R928 47K 1 2 3 IC902 REMOTE R929 10 R93322 R932 22 R931 22 R930 22 ZD901 6V8 ZD902 6V8 ZD903 6V8 ZD904 6V8 R940270 R941 NC R942 270 R943 NC R944 390 R945 NC R946270 R947 NC R948 390 R949 NC R950 390 R951 NC R952 270 R953 NC C902 104 LED19 LED LED20 LED LED21 LED LED22 LED R959

26、 330 R960 330 R961 270 R962 270 R9640R EN901 EN SW24 POWER/MUTE C905 2P ZR901 22P ZR902 22P EC901 10uF Q905 NC R965 NC R966 NC 1 2 3 4 USBIN USB C903 2P C906 2P C908 2P R975 270 R976 NC R955390 R954 NC R956390 R957 NC R969 270 R970 NC R971390 R972NC R967 270 R968 NC R973 270 R974 NC 1 2 3 4 5 6 7 8

27、9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 LCD1 CEM2000-LCD LED2 R+B R979 270 R977 NC Q901 Q903 NC 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 CON1 24PIN-CON 1 2 3 AU

28、X1 AUX IN R901A 4K7 EC904 10uF C907 104 R902A 4K7 LED17 R+B R981 270 R980NC S0:100 S17 S18 S19 S20 S21 S22 S23 S24 S25 S26 S27 S28 S29 S30 S31 S32 S33 S34 S35 S36 S37 S38 S39 S40 S41 S42 S43 S44 S45 S46 S47 S48S1 S2 S3 S4 S5 S6 S7 S8 S9 S10 S11 S12 S13 S14 S15 S16 S49 S50 S51 S52 S53 S54 S55 S51 S55

29、 S54 S53 S49 S50 BLUE+8V RED+8V RED+8V BLUE+8V POWER POWER BLUE+8V RED+8V S1 S2 S3 S4 S5 S6 S7 S8 S9 S10 S11 S12 S13 S14 S15 S1 S16 S17 S18 S19 S20 S21 S22 S23 S24 S25 S26 S27 S28 S29 S44 S52 S16 S30 S31 S32 S33 S34 S35 S36 S37 S38 S39 S55 S53 S54 S55 S40 S41 S42 S43 S44 S45 S46 S47 S48 S35 USB-GND

30、USB+5V USB+5V USB-GND LAYOUT DIAGRAM - PANEL BOARD 6 - 2 6 - 2 CIRCUIT DIAGRAM - SERVO BOARD 7 - 1 7 - 1 LAYOUT DIAGRAM - SERVO BOARD TOP SIDE VIEW 7 - 27 - 2 LAYOUT DIAGRAM - SERVO BOARD BOTTOM SIDE VIEW 7 - 37 - 3 EXPLODED VIEW DIAGRAM 8 - 18 - 1 6501 6502 6503 6504 6505 ASS02 ASS05 CD01 PL01 9 -

31、1 Revision list Version1.0 ( 3141 785 35130) *Initial Release Version1.1 ( 3141 785 35131) *New version 51 added. Tate2011-11-19 NO. d. To check the voltage of the 26 pin(SDA) of the tuner IC(7703), should be +3V8; the 27 pin(SCL) should be +4V2. e. To check the L output voltage of the 37 pin of tun

32、er IC(7703) should be 1V7, the 38 pin R output voltage , should be 1V7. g. To check the voltage of control PIN SDA?SCL?the 27?28 pin?of audio processor U5?7313 IC?, should be +4V9. 3 Radio abnormal a. To check the antenna of the tuner. b. To check whether the strength of then input signal of the tun

33、er is too weak. c. To check the voltage of the 7 pin?22 pin?33 pin?40 pin?41 pin?43 pin of the U2 of the tuner IC?7703?, should be +5V0. 2 NO audio output a. To check whether the volume knob is turn to the minimum position. b. To check whether the unit is at MUTE mode, press SOURCE button and check

34、whether it is effective of the input sound source. c. To check whether the connection of 8 PIN audio output wire of ISO connector is correct; wrong connection or short circuit to the ground will caused the protection of the power amplifier( no voltage output). d . To check the circuit of power ampli

35、fier U3 (LV47002) and VOLUME U5(7313 IC). e. To check the normal voltage of 22 PIN(MUTE) of power amplifier U3(LV47002) , normally should be 4V1 f. To check the voltage of 2 pin of audio processor U5?7313 IC?, should be +9V0. g.To check the resistor network of NR1 (4K7). H. To check the voltage of t

36、he15 pin(Lamp Vcc) of CN5 should be 6V4. e. To check the voltage of the 15 pin?16 pin?47 pin of U1 MCU should be +5V; The output voltage of U4 (LM2950) should be +5V. f. To check the oscillation frequence of crystal XT4 shuold be 7.2MHz . 1NO Power a. To check whether it is connect well of the ISO c

37、onnector (4 PIN power input ). Whether it is loose of the 15A fuse of the ISO connector, or insert non in place. b. To check whether there is any contamination and bad contact on the 22 Pin male/female connector on the panel and main board. c. To check the power supply of main board B+?ACC should be

38、 +12V; The voltage of stabilivolt of ACC power supply circuit ZD3 (6V8) should be 6V8. d.To check the voltage of the 17 pin of U1 MCU should be +4V8. Trouble shootingTrouble shootingTrouble shootingTrouble shooting failure phenomena failure causeremark Product ModelCEM2000AreaCEM2000/00 24 6 AUX def

39、ective 5 4 NO. d.To check the servo board connectors of CN702 and the main board connectors of CN9, whether the socket of it is loose. e.To check the servo board connectors of CON707 and the SD/MMC board connectors? whether the socket of it is loose. failure phenomena failure causeremark CD defectiv

40、e a. To check whether the signal format of the disc is correspond to the request of the unit, whether there is any contamination or damage or light leakage on the surface of the disc. b. To check whether there is any abnormal of the rotation of the deck mechanism, or whether the disc is enter in pos

41、ition. c. To check whether it is normal when reading USB? d. To check whether the 17 P FFC of laser pick up is inserted in place, whether the socket of it is loose. e. To check whether there is any contamination or foreign body on the surface of the laser pick up. f. To check the servo board connect

42、or of CN702 and main board connector of CN9, whether the socket of it is loose. j. To check the switch SW702 on the servo board. h. To check the rotation mechanism of CD deck mechanism. i. To check whether the rotation belt of deck mechanism is dislocation or loose. USB/SD defective a. To check whet

43、her the USB/SD signal format is correspond to the request of the unit. b. To check the voltage of the the uppermost pin of the USB connector, should be +5V. c. To check whether there is any wearing and scratch of the shrapnel and pin of the panel USB. f. To check whether there is any contamination a

44、nd bad contact on the male/female connector of the panel and main board. If necessary, can exchange the panel to test whether the defective is occurred by the unit or panel. a. To check the SOURCE should be in MP3-LINK mode. b. To check the AUX IN input signal. c. To check whether there is any conta

45、mination and bad contact on the male/female connector of the panel and main board. If necessary, can exchange the panel to test whether the defective is occurred by the unit or panel. 25 PT7313E Stereo Audio Processor for Car Audio DESCRIPTION DESCRIPTION The PT7313E is an audio processor designed f

46、or versatile application, including 3 stereo input selectors with adjustable gain, master volume control with low frequency loudness compensation, individual output attenuator and tone control. It is a good solution for the car audio signal processing. Due to the high reliability requirement from the car audio business, the PT7313E improves both audio performance and input surge current capability that make PT7313E the best solution