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LB+SD

PCB

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BOARD-

 

LAYOUT

 

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BOTTOM

 

VIEW

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8-2

Summary of Contents for CED230

Page 1: ... 1 Main board circuit diagram 1 5 1 Main board circuit diagram 2 5 2 Pcb layout top bottom view 5 3 Servo board circuit diagram 1 6 1 Servo board circuit diagram 2 6 2 Layout diagram top bottom view 6 3 SB CB board circuit diagram 7 1 KEY board circuit diagram 9 1 KEY layout diagram top bottom view 9 2 Exploded view main unit 10 1 SB CB board layout top bottom view 7 2 LB SD CB board layout top bo...

Page 2: ...ard inused CED230 X CED230 Feature diffrence Features TIPS C Component Lever Repair M Module Lever Repair Used MAIN BOARD SERVO BOARD KEY BOARD CONNECT BOARD SD BOARD LONG BOARD M C M C C C M C M C C C C C C C KEY BOARD SERVO BOARD SD BOARD LONG BOARD CONNECT BOARD MAIN BOARD 78 M C C M C C C C ...

Page 3: ... 1 9kg 16V System Frequency response Signal noise ratio Total harmonic distortion Channel separation Video signal for mat Video output Disc digital audio system 20Hz 20k Hz 75dB Less than 0 3 1KHz 55dB NTSC PAL AUTO 1 0 2V Screen size Display resolution Active area Contrast ratio Brightness 3 0 inches 320x240 dots 65 52 W x36 84 H 300 200cd m 16 91 Frequency range FM Frequency range AM MW Usable s...

Page 4: ...e aerial e g 7122 707 89001 To avoid atmospheric interference all AM measurements have to be carried out in a Faraday s cage Use a bandpass filter or at least a high pass filter with 250Hz to eliminate hum 50Hz 100Hz DUT DUT L R LF Generator e g PM5110 LEVEL METER e g Sennheiser UPM550 with FF filter S N and distortion meter e g Sound Technology ST1700B L R LEVEL METER e g Sennheiser UPM550 with F...

Page 5: ...iring 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 Safety regulations require that 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 ...

Page 6: ...e CDM fast lens cleaning playability ok playability ok playability ok Customer complaint CD related problem Check playability Play a CD for at least 10 minutes ann lnfo for customer SET OK return set For description see following pages For flap loaders access to CD drive possible clesning method is recommended ...

Page 7: ...1 6 ...

Page 8: ...ps 4 Take out the top cover with a forceps 3 loosen and take out the two bolts with a screw driver 6 loosen and take out the bolt with a screw driver 7 loosen and take out the bolt with a screw driver 8 loosen and take out the t bolt with a screw driver wo s 9 P carefully ull out the two pieces of connection pegs 10 loosen and take out the four bolt with a screw driver s 2 1 2 1 ...

Page 9: ...iver 15 Loosen and take out the six bolts with a screwdriver 12 loosen and take out the bolt with a screw driver 13 loosen and take out the bolt with a screw driver 14 P carefully ull out the two pieces of connection pegs Disassembly Diagram 2 2 2 2 ...

Page 10: ...ick 6 When software upgrade complete the device will power off automatically 1 Copy the file ROM BIN into USB stick note to delete the file MCU BIN 2 Power on the device and plug the USB stick into USB socket After the device read the content in the USB the LCD will show a upgrade menu and enter into the upgrading status 3 The LCD will appear a number changed from 20 to 0 and when arrived the numb...

Page 11: ...hich in Main board NO NO NO Change main Check tuner circuit and its conjoint part is good or bad NO NO NO NO NO NO SD no read Change servo Whether connect to SD Check the socket of SD SD USB no read Change servo Whether connect to USB Check the socket of USB SD ...

Page 12: ...4 1 4 1 WIRING DIAGRAM ...

Page 13: ...5 1 5 1 MAIN BOARD CIRCUIT DIAGRAM 1 ...

Page 14: ...5 2 5 2 MAIN BOARD CIRCUIT DIAGRAM 2 ...

Page 15: ...5 3 5 3 MAIN BOARD PCB LAYOUT TOP BOTTOM VIEW ...

Page 16: ...6 1 6 1 SERVO BOARD CIRCUIT DIAGRAM 1 ...

Page 17: ...6 2 6 2 SERVO BOARD CIRCUIT DIAGRAM 2 ...

Page 18: ...6 3 6 3 SERVO DIAGRAM BOARD LAYOUT TOP BOTTOM VIEW ...

Page 19: ...7 1 7 1 SB CB BOARD CIRCUIT DIAGRAM ...

Page 20: ...7 2 7 2 SB CB BOARD PCB LAYOUT TOP BOTTOM VIEW ...

Page 21: ...8 1 8 1 LB SD CB BOARD CIRCUIT DIAGRAM ...

Page 22: ...LB SD PCB CB BOARD LAYOUT TOP BOTTOM VIEW 8 2 8 2 ...

Page 23: ...9 1 9 1 KEY BOARD CIRCUIT DIAGRAM ...

Page 24: ...9 2 9 2 KEY BOARD LAYOUT DIAGRAM TOP VIEW BOTTOM ...

Page 25: ...10 1 10 1 EXPLODED VIEW MAIN UNIT ...

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