Keysight 11683A Operating and Service Manual 11
List of Figures
Figure 1-1 Keysight 11683A calibrator and accessories Supplied . . . . . . . . . . . . 16
Figure 1-2 Four-wire cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 2-1 Power inlet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Figure 2-2 Power cable part numbers versus main plugs available . . . . . . . . . . . 24
Figure 3-1 Front and rear panel features (illustrations for indication only) . . . . . 28
Figure 3-2 Operating and hookup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Figure 4-1 Line switch lamp replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Figure 4-2 Range switch performance test setup . . . . . . . . . . . . . . . . . . . . . . . . . 34
Figure 5-1 FET balance adjustment setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Figure 6-1 FET assembly and spacer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Figure 6-2 Hybrid operational amplifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Figure 6-3 11683A assembly and component locations . . . . . . . . . . . . . . . . . . . . 48
Figure 6-4 A3 assembly component location . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Figure 6-5 11683A-FG old rear panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Figure 6-6 11683A-FG new rear panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Figure 6-7 11683AZ-H01 old rear panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Figure 6-8 11683AZ-H01 new rear panel (11683-00012) . . . . . . . . . . . . . . . . . . 50
Figure 6-9 Old power switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Figure 6-10 New power switch (11683-6004) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Figure 6-11 11683A-FG top view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Figure 6-12 Unit with old power switch
Upgrade kit: 11683AZ-K02 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Figure 6-13 Unit with new power switch
Upgrade kit: 11683AZ-K01 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52