Keithley 237 Service Manual

SECTION
5
Replaceable
Parts
5.1 INTRODUCTION
This
section
contains
replacement
parts
information,
component location drawings
and schematic
diagrams
for
the
Models
236 and 237.
5.2 PARTS
LISTS
Parts are
listed
alphanumerically
in order
of their
circuit
designations.
The first parts
list
contains
information for
the display
board of both
the Models 236
and 237.
The
next
parts
list contains information
for
the digital
board
of both
the
Models
236
and 237. The
next parts
list
con
tains
information for
the analog board
ofboth the Modeis
236 and
237.
The next two parts lists
contain information
for
the
output modules
of the Models 236
and 237
respec
tively. The next
parts list
contains
information
for the
resonant converter
of the Model 237.
The
last
parts list
contains information on
miscellaneous
parts that do
not
pertain to any
of
the
pc
boards.
53 ORDERING INFORMATION
To place
an
order,
or
to
obtain information
concerning
re
placement
parts, contact
your
Keithley representative
or
the factory. See
inside
front
cover
for
addresses.
When
or
dering,
include
the following
information:
1
. Instrument
Model
Number
2.
Instrument Serial
Number
3*
Parts
Description
4.
Circuit
Designation
(if
applicable)
5.
Keithley
Part Number
If
an additional
service
manual is
required, order
part
number 236-902-00.
The manual
package
will contain
the
service
manual
and
any
applicable
addenda.
54 FACTORY
SERVICE
If
the instrument is
to be
returned to
the
factory
for
serv
ice,
please
complete
the
service
form
which
follows
this
section
and
return
it with
the instrument.
5.5
SCHEMATIC
DIAGRAMS
AND
COM
PONENT
LOCATION
DRAWINGS
Schematic
diagrams
and component
location
drawings
follow the
appropriate
replaceable parts
list
for that
par
ticular
board.
5-1

Keithley 237 Specifications

General

Output Power	200 W
Voltage Resolution	1 μV
Current Resolution	10 fA
Type	Source Measure Unit
Interface	GPIB, RS-232
Accuracy	0.02%
Compliance Voltage	±1100V