34931A Dual 4X8 Armature Matrix - Agilent Technologies 34980A Service Manual
Multifunction switch/measure unit
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Also See for 34980A:
- User manual (349 pages) ,
- Getting started manual (28 pages) ,
- Application note (20 pages)
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4
Troubleshooting and Diagnostics
34931A Dual 4x8 Armature Matrix
The 34931A dual 4x8 armature matrix contains two matrices, each with 32 2-wire
crosspoint latching armature relays organized in a 4- row by 8- column configuration.
Every row and column are made up of two wires each, a high (H) and a low (L). Each
crosspoint relay has a unique channel number representing the row and column that
intersects to create the crosspoint. For example, channel 304 represent the crosspoint
connection between row 3 and column 4 (all columns consisting of two digits; in this
case the digits are 04). See the simplified schematic below.
Matrix 1 and Matrix 2 are electrically separate from one another.
Matrix Relays: Armature latching. Analog Bus Relays: Armature non-latching.
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34980A Service Guide
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