Alinco_DJ-480_维修说明书手册

DJ-480C/T/EService ManualCONTENTS●PC BOARD VIEW●SPECIFICATIONS1)VCO Unit.251)General.…22)JACK Unit..252)Transmitter….23)PTT Unit Side B.253)Receiver....…24)PS Unit......264)Functions for Each Version..35)AOM1 Unit Side B6◆CIRCUIT DESCRIPTION6)ROM2 Unit Side B.361)Receiver System........7)ROM3 Unit Side B.262)PLL,VCO Circuit58)RF Unit Side A...273)Transmitter System.....59)RF Unit Side B..284)DTMF Encoder Circuit (option)..610)CPU Unit Side A..295)Tone Squelch Circuit (option)......611)cPU Unit Side B.306)Microprocessor and Peripheral Circuit......612)RE Unit......317)Terminal Function of Microprocessor.......7-913)CTCSS Unit.31●SEMICONDUCTOR DATA14)DTMF Unit...321)LR408721.15)16KEY Unit.332)M5218FP10●PARTS LIST3)M5236ML10CPU Unit......344)M67749...11.35-385)MB1504LPF11VCO Unit.....38-396)MX365.12DTMF Unit..397)NUM386..13CTCSS Unit.398)RH5VA32AA..13PTT SW Unit.409)RH5VA45AA..13JACK Unit..4010)TK10420MTA.14RE Unit.....4011)X24C01A..15PS Unit.4012)X24C04S14..15ROM1 Unit..4013)X24C16S14..15ROM2 Unit..4014)Transistor,Diode and LED Outline Drawings....16ROM3 Unit....015)LCD Connection.1716KEY Unit....40●EXPLODED VIEWOTHERS..411)Rear Case 1..18PACKING.2)LCD.18Version Table..423)Rear Case 2..19●ADJUSTMENT4)Front Case 1..201)Required Test Equipment......435)Front Case 2....212)Before Adjustment....436)Front Case 3 and Battery Terminal..223)Adjustment for DJ480..447)Ten Key Cover and Key Pad Panel234)Adjustment Quick Reference..458)CTCSS Unit and ROM Unit...245)Adjustment Points.45-46●CIRCUIT DIAGRAM...47、48●BLOCK DIAGRAM.49ALINCO ELECTRONICS INC.