34905A/34906A
Components in this discussion are located on the A1 circuit assembly
(34905-66501 or 34906-66501).
The schematics are included in
Chapter 8 starting on page 258.
The control circuitry has of two grouping of buffers, relay drivers and
relays, one for each multiplexer bank.
Bank1 latch, U102, and Bank2 latch, U103, control the relays. The bank
drivers are divided into six groups of set and reset drivers. Each set
and reset driver controls one relay. The column drivers operate as a
pair. There are six column drivers each controlling a relay. The relays
are arranged into two independent banks:
Chapter 5 Theory of Operation
Switch Modules
148
Summary of Contents for 34970A
Page 1: ...Agilent 34970A Data Acquisition Switch Unit Service Guide ...
Page 34: ...32 ...
Page 35: ...2 Quick Start 2 ...
Page 49: ...3 Front Panel Overview 3 ...
Page 62: ...60 ...
Page 63: ...4 Calibration Procedures 4 ...
Page 118: ...116 ...
Page 119: ...5 Theory of Operation 5 ...
Page 159: ...6 Service 6 ...
Page 177: ...General Disassembly 4 3 2 1 6 Chapter 6 Service Disassembly 175 ...
Page 178: ...Internal DMM Disassembly 3 2 1 Chapter 6 Service Disassembly 176 ...
Page 180: ...Additional Chassis Disassembly 1 2 Chapter 6 Service Disassembly 178 ...
Page 181: ...Plug In Module Disassembly Needle nose Pliers 6 Chapter 6 Service Disassembly 179 ...
Page 182: ...180 ...
Page 183: ...7 Replaceable Parts 7 ...
Page 220: ...Chapter 7 Replaceable Parts Manufacturer s List 218 ...
Page 221: ...8 Schematics 8 ...
Page 272: ......