Philips-CEM-2101-G-Service-Manual 电路图 维修手册.pdf

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1、CD CONNECTOR PCB COMPONENT LAYOUT.16 TUNER PCB COMPONENT LAYOUT.14-15 TROUBLE SHOOTING.19-20 SET EXPLODER VIEW DRAWING.18 ISO PCB COMPONENT LAYOUT.17 CEM2101G/51 PANEL PCB COMPONENT LAYOUT.12-13 MAIN PCB COMPONENT LAYOUT.10-11DISMANTLING INSTRUCTIONS.2 CIRCUIT DIAGRAM TUNER BOARD.9 CIRCUIT DIAGRAM P

2、ANEL BOARD.8 CIRCUIT DIAGRAM MAIN BOARD.5-7 WIRING DIAGRAM.4 BLOCK DIAGRAM.3 2012-6-15 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? RadioFans.CN 收音机爱 好者资料库 1.Press EJ button and take out panel?remove A screw in top cover of the unit; Use tweezer to prize up top cover as the blue arrow direction which showe

3、d as below picture 2) Remove B,C screws in left and right side of metal bracket; Then remove D,E screws in panel base;Remove deck mechanism ? ? ? ?The procedure of disassembling the unit ?The procedure of disassembling the panel EJ? A B DE C 2 RadioFans.CN 收音机爱 好者资料库 3 RadioFans.CN 收音机爱 好者资料库 WIRING

4、 DIAGRAM 4 5 CIRCUIT DIAGRAM -MAIN BOARD 6 7 CIRCUIT DIAGRAM -PANEL BOARD ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?

5、? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?

6、? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?

7、? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? 8 1 2 3 4 5

8、6 RFGND FMI RF-GND CTUNE AGC AMI DFS 789 10 1112 SEN RST RCLK SDIO SCLK VIO 18 17 16 15 14 13 DO LOUT ROUT GND VDD 19 20 212223 24 DCLK INT GP01 NC NC NC IC001 SI474X C001 30P C004 30P C006 47P C005 103 C003 30P C002 15P C008 22P L001 220NH L002 220NH L003 2.7UH Q001 SK255 R001 270K R002 4K7 R003 47

9、 XT001 32.768KHz C009 22P C112 103 C020 104 1211109876 5 4 3 2 DATA CLK RES R-OUT L-OUT GND DGND RFGND FM ANT +3V3 RDS 1 RFGND CN001TUNER23 C015 104 L007 220UH C013 333 C019 474 L004 FB152 Q004 9014S Q102/Q003 9014S Q002 9018S R006 220K R005 10M C017 183 L006 33UH L005 1MH C014 122 R004 10K R007 4K7

10、 R008 4K7 C016 474 R010 10 C021 1U C020 104 C007 104 AM C018 104 R009 10K L008 FB152 EC001 47UF R011100 R012100 R013 100 R014 100 L010 FB152 C025 1UF C011 103 L009 FB152 CIRCUIT DIAGRAM -TUNER BOARD 9 PCB LAYOUT -MAIN BOARD TOP SIDE VIEW 10 PCB LAYOUT -MAIN BOARD BOTTOM SIDE VIEW 11 PCB LAYOUT -PANE

11、L BOARD TOP SIDE VIEW 12 PCB LAYOUT -PANEL BOARD BOTTOM SIDE VIEW 13 41 PCB LAYOUT -TUNER BOARD TOP SIDE VIEW 15 PCB LAYOUT -TUNER BOARD BOTTOM SIDE VIEW 16 PCB LAYOUT CD CONNECTOR TOP SIDE VIEW 17 PCB LAYOUT-ISO BOARD BOTTOM SIDE VIEW SET EXPLODER VIEW DRAING 18 7313 IC e. To check the normal volta

12、ge of 22 PIN(MUTE) of power amplifier IC501(TDA7388) , normally should be 4V. d . To check the circuit of power amplifier IC501 (TDA7388) and VOL IC403 (7313IC). 2012-6-20 CEM2101 NO. c. To check the voltage of the 7 pin(VDD) of the tuner , should be +3V3. a. To check the antenna of the tuner. e. To

13、 check the oscillation frequence of crystal XT001 of the tuner, should be 32.768KHZ. 3 b. To check whether the strength of then input signal of the tuner is too weak. ? ? f. To check the L output voltage of the 5 pin of tuner should be 1V5, the 6 pin R output voltage , should be 1V5. d. To check the

14、 voltage of the 10 pin(RES) of the tuner, should be +3V6; the 11 pin(CLK) should be +3V1; the 12 pin(date) should be +2V8. 2 NO audio output f. To check the voltage of control PIN SDA?SCL?the 27?28pin?of audio processor IC403?, should be +3V3. b. To check whether the unit is at MUTE mode, press SOUR

15、CE button and check whether it is effective of the input sound source. c. To check whether the connection of 8PIN 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). NO Power a. To check

16、 whether the volume knob is turn to the minimum position. g. To check Panel LED +5V voltage , should be normal. a. To check whether it is connect well of the ISO connector (4PIN power input ). Whether it is loose of the 15A fuse of the ISO connector, or insert non in place. b. To check whether the r

17、eset button Sw201 is long term functional then caused short circuit and no power. 1 f. To check the oscillation frequence of crystal X201 , shuold be 8MHz, and for the crystal X202 should be 32.768KHZ. d. To check the power supply of main board B+?ACC should be +12V; The voltage of stabilivolt of AC

18、C power supply wire ZD210 (6V8) should be 6V8. e. To check the voltage of the 19 pin (AVDD) of MCU (T5CL8) should be +3V3; The output voltage of IC307 (LM2950) should be +3V3. c. To check whether there is any contamination and bad contact on the 22 Pin male/female connector on the panel and main boa

19、rd. failure cause failure phenomena remark ? ?AreaDate Product Model G 19 l. To check the voltage of the 8 pin of IC 603, should be +7.3V. CON602. NO. 6AUX defective a. To check the SOURCE shoule be in MP3-LINK mode. b. To check the AUX IN input signal c. To check whether there is any contamination

20、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. a. To check whether the USB signal format is correspond to the request of the unit. USB defective f. To check whether there i

21、s any contamination 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. 5 d. To check whether there is any wearing and scratch of the shrapnel and pin of the USB. e. To check th

22、e oscillation frequence of the 7 pin of main board IC604, should be 32.768KHZ. b. To check the voltage of the the uppermost pin of the USB connector, should be +5V. c. To check the voltage of the first pin of main board IC604 , should be +3V3, when insert USB, the voltage of the second pin should be

23、 +3V, if no insert the USB, the voltege should be 0V. failure causefailureremark ? ? m. To check whether the rotation belt of deck mechanism is dislocation or loose. b. To check whether there is any abnormal of the rotation of the deck mecahnism, or whether the disc is enter in position. h. To check

24、 the oscillation frequence of crystal X603 , should be 9MHZ. j. To check the switch S601 on the servo board. k. To check the rotation mechanism of CD deck mechanism. c. To check whether it is normal when reading USB? i. To check the voltage of the 50 pin of IC 602, should be 3.3V. a. To check whethe

25、r 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. 4 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. g. To check the oscillation frequence of crystal X602 , should be 16.9344M. f. To check the servo connector of CON601? 20