Equipment information

Alinco DR-620 Transceiver
Manufacturer:
Model:
DR-620
Date:
2002
Category:
Group:
Description:
Service Manual
Manual Type:
Service Manual
Pages:
56
Size:
1.16 Mbytes (1217709 Bytes)
Language:
english
Revision:
Manual-ID:
PM0075
Date:
Quality:
Scanned document, all readable.
Upload date:
2014 04 27
MD5:
3ee164901970f6de2fcddb86dd04e7a8
Downloads:
1014

Information

SPECIFICATIONS 1) GENERAL ... 2 2) TRANSMITTER ... 2 3) RECEIVER ... 3 CIRCUIT DESCRIPTION 1) VHF Reception ... 4 2) UHF Reception ... 5 3) FM Reception ... 5 4) V/V (VHF-VHF) Dual Reception ... 6 5) U/U (UHF-UHF) Dual Reception ... 6 6) VHF Squelch Control ... 6 7) UHF Squelch Control ... 6 8) Transmit Signal P ath ... 7 9) VHF Transmit Signal P a th ... 7 10) UHF Transmit Signal Path ... 7 11) VHF Tx APC Circuit ... 7 12) UHF Tx APC Circuit ... 8 13) VHF PTT Circuit ... 8 14) UHF PTT Circuit ... 8 15) VHF PLL ... 8 16) UHF PLL ... 9 17) Power-on Circuit ... 9 SEMICONDUCTOR DATA 1) M5218FP (XA0068) ... 10 2) NJM78L05UA (XA0098) ... 10 3) NJM7808FA (XA0102) ... 10 4) TC4S66F (XA0115) ... 11 5) AN8010M (XA0119) ... 11 6) BU4052BF (XA0236) ... 11 7) TA75S01F (XA0332) ... 12 8) TC4W53FU (XA0348) ... 12 9) TA31136FN (XA0404) ... 12 10) LA4425A (XA0410) ... 13 11) NJM2904V (XA0573) ... 13 12) NJM2902V-TE1 (XA0596) ... 13 13) S-80845ALMP-EA9-T2 (XA0620) ... 14 14) TK10931V (XA0666) ... 14 15) BR24C64F-E2 (XA 0 6 6 9 ) ... 15 16) LC75884W (X A 0 8 9 9 ) ... 16 17) M51132FP (XA0900) ... 17 18) M30620FCAGP (XA0913/XA0949) ... 17~19 19) M38503M2H667FP (XA0914) ... 20~21 20) M64076AGP (XA 0 91 5) ... 22 21) S-816A50AMC (XA0925) ... 23 22) NJM78M05DL1A (XA 0 9 4 7 ) ... 23 23) Transistor, Diode, and LED Outline Drawings ... 24~25 24) LCD Connection ... 26~27 EXPLODED VIEW 1) Front View ... 28 2) Bottom V iew ... 29 PARTS LIST Front Unit ... 30~31 LED Unit ... 31 Main U n it ... 31~42 Mechanical Parts ... 42 Packing Parts ... 42 Accessories (Screw S e t) ... 42 ADJUSTMENT 1) Adjustment S p o t ... 43 2) Adjustment Mode ... 44 3) VHF Adjustment Specification ... 45 4) UHF Adjustment Specification ... 46 5) VHF Test Specification ... 47 6) UHF Test Specification ... 48 PC BOARD VIEW 1) Front Side A ... 49 2) Front Side B ... 49 3) Main Side A ... 50 4) Main Side B ... 51 FRONT SCHEMATIC D IA G R AM ... 52 MAIN SCHEMATIC D IAGR AM ... 53 FRONT BLOCK D IA G R AM ... 54 MAIN BLOCK DIAGR AM ... 55

show more