Philips-CED-780-Service-Manual 电路图 维修手册.pdf

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1、CIRCUIT DIAGRAM SERVO BOARD.9 CIRCUIT DIAGRAM MAIN 1 kHz, 0 dB, 10 k load) Subwoofer output voltage 4.0 V (CD play mode, 61 Hz, 0 dB, 10 k load) Aux-in level 500 mV Dimensions (W x H x D) 178 x 50 x 210 mm Weight (main unit)3.1 kg Disc player SystemDVD / CD audio / MP3 system Frequency response20 Hz

2、 - 20k Hz Signal/noise ratio75dB Total harmonic distortion Less than 1% Channel separation55dB Video signal formatNTSC only Video output1 +/- 0.2V Radio Frequency range - FM87.5 - 108.0 MHz (50kHz per step) Frequency range - AM(MW) 522 - 1620 KHz (9kHz per step) Usable sensitivity - FM5 uV Usable se

3、nsitivity - AM (MW) 25 uV LCD Screen size7.0 inches Display resolution800 x 480 dots Contrast ratio500 Brightness450 cd/m2 Bluetooth Communication system Bluetooth Standard version 2.0 OutputBluetooth Standard Power Class 2 Maximum communication range Line of sight approx. 8m Frequency band2.4 GHz b

4、and (2.4000 GHz - 2.4835 GHz) Compatible Bluetooth Advanced Audio Audio Video Remote Supported codecs Receive Transmit SBC (Sub Band Codec) SBC (Sub Band Codec) Playability information Compatible USB devices: Supported USB formats: variable bit rate levels Supported MP3 disc format: 44.1kHz, 48 kHz

5、variable bit rate Supported video formats: 1 - 1 SPECIFICATIONS The following video formats(containers) are supported on current product: MPEG1 (*.avi, *.mpg, *.dat) MPEG4 (simple profile) (*.avi) DIVX4 (*.avi) DIVX5 (*.avi) XVID (*.avi) NOTE: To ensure smooth playback, the image size should not be

6、higher than 640X480, frame rate should not be higher than 20 fps and data rate should not be higher than 500kbps in the encoded video. The following video formats(containers) cannot be supported on current product: For format(container) not listed above, it is not guaranteed to work. Please avoid fr

7、om using with the product. length: 128 bytes) Unsupported video formats: M-JPEG (*.avi, *.mov) MPEG4 (*.mov, *.wmv, *.mp4, *.3g2, *.asf, *.3gp) H.263 (*.avi, *.mov, *.flv, *.3gp) H.264 (*.mp4, *.mov) WMV3 (*.wmv, *.avi) WMV2 (*.wmv) RealVideo4 (*.rmvb, *.rm) RealVideo3 (*.rm) RealVideo2 (*.ram) MS V

8、ideo (*.avi) NOTE: RadioFans.CN 收音机爱 好者资料库 4.Disassemble black wire and FFC first, then take out the screws around TFT CED780 Dismantlement Method 1. Take out the three screws at heat sink, the six screws at the left right side of the main unit and the screw at the base panel 2. Prize up the left ri

9、ght hook of the base panel and take out the base panel, separate the bottom cover from the unit 3. Take out the FFC which connect to main board, and take out the fixed screws of the back cover, then take out the FFC at the deck mechanism ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? 2 RadioFans.

10、CN 收音机爱 好者资料库 CAMERACAMERA Front PanelTFT (800 x480) With TCON Front PanelTFT (800 x480) With TCON MCU ST8 64Pin 128k MCU ST8 64Pin 128k DVD (SUNPLUS SPHE8202G) DVD (SUNPLUS SPHE8202G) GPS(SIRFIII ) GPS(SIRFIII ) Cirrus CS47048 (100 pin ) Cirrus CS47048 (100 pin ) Power Amplifier Sanyo LV47002P Powe

11、r Amplifier Sanyo LV47002P Radio TunerRadio Tuner CED780(B) Block Diagram -S3C2451 wrong connection or short circuit to the ground will caused the protection of the power amplifier( no voltage output). e. To check the voltage of 22 PIN(MUTE) of power amplifier U12(47002 IC) , normally should be 4V0.

12、 d . To check the circuit of power amplifier U12(LV47002 IC) and VOLUME U7(47048 IC). c. To check the U3 of multiple voltage regulator IC,the 9 pin should be +12V0?the 10 pin should be +5V0? the 1 pin should be +3V3?the 13 pin should be +8V5?the 14 pin should be +5V0. e. To check the oscillation fre

13、quence of crystal X1 shuold be 16MHz . d. To check the 7 pin voltage of the U2(MCU) should be +5V0. b. To check whether there is any contamination and bad contact on the 24 Pin male/female connector on the panel and main board. a. To check whether the CN2(14pin) connector of the tail of the unit is

14、connect well , Whether it is loose of the 15A fuse of the Filter Box, or insert non in place. Trouble shootingTrouble shootingTrouble shootingTrouble shooting failure phenomena failure causeremark Product ModelCED780AreaAll area 1NO Power 2 7TFT abnormal a.To check the connectors of the CON6?CON9?wh

15、ether the socket of it is loose. c.To check the voltage of the L2 of the TFT board,should be +5V0. b.To Check the voltage of the 33 pin36 pin of the CON2 ,should be +12V0 23 NO. failure phenomena failure causeremark 5 CD/DVD defective a. To check whether the signal format of the disc is correspond t

16、o 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 position. c. To check whether it is normal when reading USB? d. To che

17、ck whether the 24P 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. i. To check the rotation mechanism of CD/DVD deck. f. To check the servo board connector of CN3 and the

18、 main board connector of CN1, whether the socket of it is loose. h. To check the switch SW1 on the servo board. g.To check the voltage of the 9 pin 12 pin of the CN1 , should be +5V0. 6 USB/SD defective a. To check whether the USB/SD signal format is correspond to the request of the unit. b. To chec

19、k the voltage of the USB connector of the left first pin , should be +5V. c. To check whether there is any wearing and scratch of the shrapnel and pin of the panel USB. 8 e.To check whether there is any contamination and bad contact on the male/female connector of the panel and main board. If necess

20、ary, can exchange the panel to test whether the defective is occurred by the unit or panel. 7AUX 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 and bad contact on the male/female connector of the panel

21、and main board. If necessary, can exchange the panel to test whether the defective is occurred by the unit or panel. BT defective d. To check the servo board connector of CN3 and the main board connector of CN1, whether the socket of it is loose. a.Check the unit should be in pair with the BT phone

22、connection status b.To check the 9 pin of the BT module,should be +3V3. c.To check the CN8 connector. 9GPS defective a.To check the micro SD memorizer of the map of the GPS. b.To check the GPS antenna of the tail of the unit. c.To check the connectors of the CON2?CON8?CON9?whether the socket of it is loose. 24