Philips-CE-138-Service-Manual 电路图 维修手册.pdf

TROUBLE SHOOTING.12-13 SET EXPLODER VIEW DRAWING.11 PANEL PCB COMPONENT LAYOUT.9-10 MAIN PCB COMPONENT LAYOUT.7-8 CIRCUIT DIAGRAM PANEL BOARD.6 CIRCUIT DIAGRAM MAIN BOARD.5 2012-5-30 CE138/all version WIRING DIAGRAM.4 BLOCK DIAGRAM.3 DISMANTLING INSTRUCTIONS.2 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? RadioFans.CN 收音机爱 好者资料库 ? 2.) Remove the four screws in C,D,E,F position in the heat sink, then remove the G screw in left side of the unit and the H, I screws which were for fixing the main board; remove the main board ? ?The procedure of disassembling the unit ?The procedure of disassembling the panel 1.? Remove A, B screws in the back cover as below picture showed; Use tweezer to prize up top cover as the blue arrow direction which showed as below picture and remove the top cover A B ? ? ? C D E F G ? ? ? ? ? H I ? ? ? RadioFans.CN 收音机爱 好者资料库 3 RadioFans.CN 收音机爱 好者资料库 Wiring Diagram 4 CIRCUIT DIAGRAM -MAIN BOARD 5 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? SW901 MENU SW912 M1/PAU R911180R R921180R SW902 T-DN SW909 DISP R912220R R922220R SW903 EQ/AUDIO SW914 M3/RPT R913330R R923330R SW904 MAX/SOUND/DBB SW915 M4/RDM R914470R R924470R SW905 T-UP SW916 M5/ST R915680R R925680R SW906 BAND R9161K R9261K SW907 SOURCE SW917 M6/PROG ? 1K5 SW908 RETURN R9182K2R9193K3 SW910 ZONE SW913 M2/INT ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? 39R ? 39R ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? CIRCUIT DIAGRAM -PANEL BOARD 6 PCB LAYOUT-MAIN BOARD TOP SIDE VIEW 7 PCB LAYOUT-MAIN BOARD BOTTOM SIDE VIEW 8 PCB LAYOUT-PANEL BOARD TOP SIDE VIEW 9 PCB LAYOUT-PANEL BOARD BOTTOM SIDE VIEW 10 SET EXPLODER VIEW DRAWING 11 CE138Date2012-5-28 NO. 3 NO audio output 4? ? d. To check the oscillation frequence of crystal XL130 of the tuner IC,shuold be 32.768MHz b. To check whether the strength of then input signal of the tuner is too weak. c. To check the voltage of the 12 pin?13 pin of the U131 of the tuner IC, should be +3V3. a. To check the antenna of the AM/FM tuner. 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 whether it is effective of the input sound source. c. To check whether the connection of 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). e. To check the voltage of 22 PIN(MUTE) of power amplifier U501(7388 IC) , normally should be +4V0. d . To check the circuit of power amplifier U501(7388 IC) and VOLUME U301(7313 IC). a. To check whether the CN501(ISO) connector of the tail of the unit is connect well , Whether it is loose of the 15A fuse of the ISO, or insert non in place. ? failure phenomena failure causeremark Product Model? ? NO Power1 b. To check whether there is any contamination and bad contact on the 22Pin male/female connector on the panel and main board. e. To check the oscillation frequence of crystal CF202 shuold be 32.768KHz . d. At the unit ACC ON, To check the 36 pin voltage of the U201(MCU) should be low level . c. To check the U602 of voltage regulator IC,the output pin should be +3V3?the input pin should be +11V0. LCD abnormal 2 a.To check whether there is any contamination and bad contact on the 22Pin 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. c.To check the voltage of the L303 of the MAIN board,should be +5V0. b.To Check the voltage of the 56 pin of the IC901(75823) ,should be +5V0. 12 NO. 5USB defective AUX defective6 b. To check the MP3-LINK input signal. c. To check whether there is any contamination and bad contact on the 22Pin 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. c. To check whether there is any wearing and scratch of the shrapnel and pin of the panel USB. failure phenomena failure causeremark a. To check whether 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 +5V0. d.To check whether there is any contamination and bad contact on the 22Pin 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 shoule be in MP3-LINK mode. 13