6
Replaceable Parts
6-1
6.1
Introduction
This section contains replacement parts information,
schematic diagrams, and component layout drawings for
the Model 1801.
6.2
Parts lists
Parts lists for the preamplifier are included in tables inte-
grated with schematic diagrams and component layout
drawings for the boards. Parts are listed alphabetically in
order of circuit designation.
6.3
Ordering information
To place an order, or to obtain information concerning
replacement parts, contact your Keithley representative or
the factory (see inside front cover for addresses). When
ordering parts, be sure to include the following
information:
•
Model number (1801)
•
Serial number
•
Part description
•
Circuit description, if applicable
•
Keithley part number.
6.4
Factory service
If the preamplifier is to be returned to Keithley Instru-
ments for repair, perform the following:
•
Complete the service form at the back of this manual,
and include it with the card.
•
Carefully pack the preamplifier module and power
supply card in the original packing carton.
•
Write ATTENTION REPAIR DEPT on the shipping
label.
NOTE
It is not necessary to return the Model
2001 Multimeter with the preamplifier.
However, be sure that you return both
the preamplifier module and the power
supply card, as well as the power supply
connecting cable.
6.5
Component layouts and schematic
diagrams
Component layout drawings and schematic diagrams are
included on the following pages integrated with the parts
list for the Model 1801.