Keithley 2010 Service Manual

Case cover removal
Follow the steps below to remove the case cover to gain access to internal parts.
WARNING Before removing the case cover, disconnect the line cord and any test leads
from the instrument.
1. Remove Handle — The handle serves as an adjustable tilt-bail. Adjust its position by
gently pulling it away from the sides of the instrument case and swinging it up or down.
To remove the handle, swing the handle below the bottom surface of the case and back
until the orientation arrows on the handles line up with the orientation arrows on the
mounting ears. With the arrows lined up, pull the ends of the handle away from the case.
2. Remove Mounting Ears — Remove the screw that secures each mounting ear. Pull down
and out on each mounting ear.
NOTE When re-installing the mounting ears, make sure to mount the right ear to the right
side of the chassis, and the left ear to the left side of the chassis. Each ear is marked
“RIGHT” or “LEFT” on its inside surface.
3. Remove Rear Bezel — To remove the rear bezel, loosen the two captive screws that
secure the rear bezel to the chassis. Pull the bezel away from the case.
4. Removing Grounding Screws — Remove the two grounding screws that secure the case
to the chassis. They are located on the bottom of the case at the back.
5. Remove Cover — To remove the case, grasp the front bezel of the instrument, and
carefully slide the chassis forward. Slide the chassis out of the metal case.
NOTE To gain access to the components under the motherboard shields, remove the shields,
which are secured to the motherboard by their appropriate screw.
Changing trigger link lines
The Model 2010 uses two lines of the Trigger Link rear panel connector as External Trigger
(EXT TRIG) input and Voltmeter Complete (VMC) output. At the factory, line 1 is configured
as VMC and line 2 as EXT TRIG.
NOTE Line 1, 3, or 5 of the Trigger Link can be configured as VMC, while line 2, 4, or 6 can
be configured as EXT TRIG.
You can change trigger link line configurations by moving the position of resistors inside the
unit. Perform the following steps to change trigger link lines:
WARNING Make sure the instrument is disconnected from the power line and other
equipment before performing the following procedure.
5-4 Disassembly

Keithley 2010 Specifications

General

Frequency Range	3 Hz to 300 kHz
DC Voltage Range	100 mV to 1000 V
AC Voltage Range	100 mV to 750 V
DC Current Range	3 A
DC Current Accuracy	0.05%
AC Current Range	3 A
Resistance Accuracy	0.01%
Interface	GPIB, RS-232
Power Supply	50 Hz or 60 Hz