ALINCO DR-620 SM free download

File name DR-620_SM.pdf

DR-620 Service Manual CONTENTS SPECIFICATIONS 15) BR24C64F-E2 (XA0669) ... 15 1) GENERAL ... 2 16) LC75884W (XA0899) ... 16 2) TRANSMITTER ... 2 17) M51132FP (XA0900) ... 17 3) RECEIVER ... 3 18) M30620FCAGP (XA0913/XA0949) ... 17~19 CIRCUIT DESCRIPTION 19) M38503M2H667FP (XA0914) ... 20~21 1) VHF Reception ... 4 20) M64076AGP (XA0915) ... 22 2) UHF Reception ... 5 21) S-816A50AMC (XA0925) ... 23 3) FM Reception ... 5 22) NJM78M05DL1A (XA0947) ... 23 4) V/V (VHF-VHF) Dual Reception ... 6 23) Transistor, Diode, and LED Outline Drawings ... 24~25 5) U/U (UHF-UHF) Dual Reception ... 6 24) LCD Connection ... 26~27 6) VHF Squelch Control ... 6 EXPLODED VIEW 7) UHF Squelch Control ... 6 1) Front View ... 28 8) Transmit Signal Path ... 7 2) Bottom View ... 29 9) VHF Transmit Signal Path ... 7 PARTS LIST 10) UHF Transmit Signal Path ... 7 Front Unit ... 30~31 11) VHF Tx APC Circuit ... 7 LED Unit ... 31 12) UHF Tx APC Circuit ... 8 Main Unit ... 31~42 13) VHF PTT Circuit ... 8 Mechanical Parts ... 42 14) UHF PTT Circuit ... 8 Packing Parts ... 42 15) VHF PLL ...