Agilent Technologies N5242A Service Manual page 9

Contents
Bottom RF Cables, 4-Port, Option 419 without Option 029 (Ports 3 and 4) . . . . . . . . . . .6-52
Bottom RF Cables, 4-Port, Option 419 with Option 029 (Ports 3 and 4) . . . . . . . . . . . . . .6-54
Bottom Ribbon Cables and Wire Harnesses, 4-Port, Option 419 (including Option 029).6-56
Bottom Assemblies, 4-Port, Option 423 (including Option 029). . . . . . . . . . . . . . . . . . . . .6-58
Bottom RF Cables, 4-Port, Option 423 without Option 029 (Ports 1 and 2) . . . . . . . . . . .6-60
Bottom RF Cables, 4-Port, Option 423 with Option 029 (Ports 1 and 2) . . . . . . . . . . . . . .6-62
Bottom RF Cables, 4-Port, Option 423 without Option 029 (Ports 3 and 4) . . . . . . . . . . .6-64
Bottom RF Cables, 4-Port, Option 423 with Option 029 (Ports 3 and 4) . . . . . . . . . . . . . .6-66
Bottom Ribbon Cables and Wire Harnesses, 4-Port, Option 423 (including Option 029).6-68
Top Hardware and Miscellaneous Parts, All Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-70
Bottom Hardware and Miscellaneous Parts, All Options Except 029 . . . . . . . . . . . . . . . .6-72
Bottom Hardware and Miscellaneous Parts, Option 029 . . . . . . . . . . . . . . . . . . . . . . . . . .6-74
Internal Hardware and Miscellaneous Parts, All Options . . . . . . . . . . . . . . . . . . . . . . . . .6-76
External Hardware and Miscellaneous Parts, All Options . . . . . . . . . . . . . . . . . . . . . . . .6-78
Rear Panel Assembly, All Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-80
Miscellaneous Part Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-82
7 Repair and Replacement Procedures
Information in This Chapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-2
Chapter Seven at-a-Glance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-2
Personal Safety Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-3
Electrostatic Discharge (ESD) Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-3
Removal and Replacement Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-4
Removing the Covers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-6
Removing and Replacing the Front Panel Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-8
Removing and Replacing the A1-A3 and Other Front Panel Subassemblies. . . . . . . . . . . .7-10
Removing and Replacing the A4-A13 Boards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-14
Removing and Replacing the A14 System Motherboard . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-16
Removing and Replacing the A15 Midplane Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-18
Removing and Replacing the A16 Power Supply Assembly. . . . . . . . . . . . . . . . . . . . . . . . . .7-20
Removing and Replacing the A17 CPU Board Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . .7-22
Removing and Replacing the A18 GPIB Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-24
Removing and Replacing the A19 Test Set Motherboard. . . . . . . . . . . . . . . . . . . . . . . . . . . .7-26
Removing and Replacing the A20 IF Multiplexer Board . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-28
Removing and Replacing the A21 HMA26.5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-30
Removing and Replacing the A22 Splitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-32
Removing and Replacing the A23 and A24 Mixer Bricks . . . . . . . . . . . . . . . . . . . . . . . . . . .7-34
Removing and Replacing the A25-A28 Bridges and Bridge Mounting Brackets. . . . . . . . .7-36
Removing and Replacing the A29-A32 Test Port Couplers . . . . . . . . . . . . . . . . . . . . . . . . . .7-38
Removing and Replacing the A33 Reference Mixer Switch . . . . . . . . . . . . . . . . . . . . . . . . . .7-40
Removing and Replacing the A34-A37 Source Attenuators, the A38-A41 Bias Tees, and the
A42-A45 Receiver Attenuators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-42
Removing and Replacing the A38-A41 Bias Tees . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-44
Removing and Replacing the A46-A49 Bypass Switches and the A50 Combiner . . . . . . . .7-46
Removing and Replacing the A51 Hard Disk Drive (HDD) . . . . . . . . . . . . . . . . . . . . . . . . . .7-48
Removing and Replacing the A52 and A53 Option 029 Test Port Switches . . . . . . . . . . . . .7-52
Removing and Replacing the A54 Option 029 Test Port 2 Bridge and the A55 Option 029 Noise
Downconverter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-54
Removing and Replacing the Rear Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-56
Service Guide N5242-90001 Contents-5