Alinco_DR-635_维修维护电器原理图手册

DR-635Service ManualCONTENTSSPECIFICATIONS15BR24C64F-E2CXA0669)…151)GENERAL.16)LC75884WXA0899)…1617)M51132FPXA0900).173)RECEIVER·318)M38503M2H667FP(仪A0914..17-18CIRCUIT DESCRIPTION19)M64076 AGP (XA0915)点..191)VHF Reception420)S-816A50 AMC (XA0925).202)UHF Reception......21)NJM78M05DL1A0XA09477i…203)FM Reception ......22)M30624 FGPGP (XA1081XA1082).20-224)V/V (VHF-VHF)Dual Reception....623)Transistor,Diode,and LED Outline Drawings....23~245)U/U (UHF-UHF)Dual Reception624)LCD Connection.....24-256)VHF Squelch ControlEXPLODED VIEW7刀UHF Squelch C0 ntrol.…1)Front View…268)Transmit Signal Path2)Bottom View...…279)VHF Transmit Signal Path ...PARTS LIST10)UHF Transmit Signal PathFront Unit.2811)VHFTX APC Circuit8LED Unit...12）UHF Tx APC Circuit.…8Main Unit283713 VHFPTT Circuit.8Mechanical Parts3714)UHF PTT CircuitPacking Parts.3715)VHF PLL....,9Accessories (Screw Set).3716)UHF PLL......9ADJUSTMENT1刀Power-on Circuit1)Adjustment Spot.38SEMICONDUCTOR DATA2）Adjustment Mode..391)M5218FPXA0068)103)VHF Adjustment Specification.402)NJM78LO5UA (XA0098)104)UHF Adjustment Specification413)NUM7808FAXA0102)105)VHF Test Specification........424)TC4S66F0XA0115)116)UHF Test Specification.435)AN8010MA0119).11PC BOARDVIEW6)BU4052BFXA0236)1)Front Side A...…447)TA75S01FXA0332)2)Front Side B.448)TC4W53FU (XA0348)....123)Main Side A459)TA31136 SFN (XA0404)…4)Main Side B.4.610)LA4425AGXA0410)413FRONT SCHEMATIC DIAGRAM.......4711)NJM2904VGXA0573)13MAIN SCHEMATIC DIAGRAM4812)NWM2902VTE1XA0596)13FRONT BLOCK DIAGRAM…4913)S-80845ALMP-EA9-T2GXA0620)14MAIN BLOCK DIAGRAM5014)TK10931VXA0666)14ALINCO,INC.