A8 Motherboard Description; Motherboard Connections - Agilent Technologies N9039A Service Manual

Assembly Descriptions

A8 Motherboard Description

A8 Motherboard Description

The A8 Motherboard assembly is serviced as an assembly only; no component
level repair is supported.
The main functions that the A8 Motherboard assembly provides are:
• Assembly interconnections
Provides connections for all major assemblies
• Signal Routing
Routes all signals between major assemblies
• Fan Speed Controller
Controls the speed of the instrument fan to maintain the internal
temperature within operating parameters
• Option Slots
Expansion capability for hardware options

Motherboard Connections

Connector Connects To
J2 A7 Midplane Board Assembly
J3 A7 Midplane Board Assembly
J4 A7 Midplane Board Assembly
J5 A7 Midplane Board Assembly
J6 B3 Fan Assembly
J7 B2 Fan Assembly
J8 B1 Fan Assembly
J9 W1 Front Panel Ribbon Cable
J11 A3 Digital I/O Board Assembly
J12 A3 Digital I/O Board Assembly
J21 Unused
J31 Unused
104
Connector
J32 Unused
J41 Unused
J42 Unused
J51 Unused
J52 A24 Conducted Filter Assembly
J61 Unused
J71 A23 Conducted Input Assembly
J81 A22 Radiated Filter Assembly
J91 Unused
J101 A21 Radiated Input Assembly
J111 Unused
Connects To
Chapter 3