Alinco_DJ-438_DJ-493_DJ-496_维修说明书手册

DJ-493DJ-496/438Service ManualCONTENTSSPECIFICATIONSEXPLODED VIEW1)GENERAL...1)Front View.152)）TRANSMITTER.22）Rear View163)）RECEIVER.2PARTS LIST(DJ-493)CIRCUIT DESCRIPTIONMAIN Unit..17-211)Receiver System.3.4Mechanical Parts .........…222)Transmitter System4Packing Parts…4223)PLL Synthesizer Circuit4.5PARTS LIST (DJ-496)4)CPU and Peripheral Circuits.....5.6MAIN Unit23-275)M38267M8L252GP(XA0725……6-8Mechanical Parts28SEMICONDUCTOR DATAPacking1)NMU2070MT1(XA0210)9ADJUSTMENT2)AT24C16N-10Sl-2.7TER(XA0368).91)Required Test Equipment..29303)M5222FP.600C(XA0385)102)Adjustment Mode31-344)TK14521MTL(XA0515)11PC BOARD VIEW5)M64076AGP(XA0352).12MAIN Unit...6)NJM2904V-TE1(XA057312…35.36SCHEMATIC DIAGRAM7刀NJM2902V-TE1(XA0596).12…37.388)S-81350HG-KD-T1(XA0724).13BLOCK DIAGRAM……39,409)S-80845ALMP-EA9-T2 (XA0620)..........1310)2SK2975(XE0038)…1311)Transistor,Diode,and LED Ontline Drawings.....1412)LCD Connection (EL0044)ALINCO.INC.