4-2• THE LOCATION OF ADJUST/CHECK POINTS ON THE MAIN UNIT4-2 ADJUSTMENT ON THE MAIN UNITADJUSTMENT ITEM TRANSCEIVER'S CONDITION OPERATION CHECKPOINTADJUSTPOINT VALUECOIL PRESET • Receive • Set the coils as follows.–L4201L4202L4251MIXER BALANCE • Frequency : 1.821 MHz• Mode : LSB• PREAMP : OFF• Receive1) Connect the millivoltmeter to[SP].2) Adjust the noise level.[SP] R3237 Minimum noise levelMIXER BALANCEAdjust point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djust pointC3C310C1501C1502C1503C1504C1506C1507C1508C1509C1510C1513C1514C1517C152171727375C4109C4202C4203C4204C4205C4207C4208C4209 C4210C4212C4252C4253C4255C4256C4257C4258C4260C4262C4605CP1501CP1502D1501D1502D1503D1504D1505D1506D1507D1511D1512D1513D1514D1515D1516D4102D4152D4201D4202D4203D4204D4251D4252EP408EP409EP410EP411EP412EP413EP414EP415EP416EP417EP418EP419EP420EP4104EP4601IC13J401J401L4201L4202L4251L4252MP4002Q1453 Q1456Q1501Q1502Q1505Q4201Q4251R24R25 R26R27R421R1501R1502R1503R1504R1505R1506R1507R1510R1512R1513R1514R1515R1517R1518R1519R1520R1522 R1523R1524R1526R1528R1529R1530R1531R1532R1534R1536R1537R1538R1539R1540R1541R1542R1543 R1544R1545R1546R1547R1548R1550R1551R1557R4102R4104R4153R4207R4211R4215R4252R4254R4255R4261R4531R45329L420112L4251L4202MIXER BALANCECheck point3 rotationsCore2.5 rotationsCoreCore’s Bottom
