Unit SelfTests Part I Part VI Part X Unit 1 Unit 27 Unit 54 Unit 2 Unit 28 Unit 55 Unit 3 Unit 29   Unit 4 Unit 30 Part XI Unit 5 Unit 31 Unit 56   Unit 32 Unit 57 Part II   Unit 58 Unit 6 Part VII Unit 59 Unit 7 Unit 33 Unit 60 Unit 8 Unit 34   Unit 9 Unit 35 Part XII Unit 10 Unit 36 Unit 61   Unit 37 Unit 62 Part III Unit 38 Unit 63 Unit 11 Unit 39   Unit 12   Part XIII Unit 13 Part VIII Unit 64 Unit 14 Unit 40 Unit 65 Unit 15 Unit 41 Unit 66 Unit 16 Unit 42 Unit 67 Unit 17 Unit 43 Unit 68 Unit 18 Unit 44     Unit 45 Part XIV Part IV   Unit 69 Unit 19 Part IX Unit 70 Unit 20 Unit 46 Unit 71 Unit 21 Unit 47   Unit 22 Unit 48 Part XV Unit 23 Unit 49 Unit 72   Unit 50 Unit 73 Part V Unit 51 Unit 74 Unit 24 Unit 52 Unit 75 Unit 25 Unit 53 Unit 76 Unit 26