Honeywell Vibrex 2000 User Manual

Chapter 6 – Maintenance
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13841 Rev A
239
Possible Cause
Corrective Action
Contrast incorrectly
adjusted
Adjust the contrast by using the two keys to
the right of the screen. If the display turns
dark, but no text is visible during the
adjustment, see “Problem: Display Dark or
Darkening”.
The 12V power
short-circuited
Remove any damaged cables and try again.
Inspect connectors for visible damage.
Batteries installed
incorrectly
Remove the batteries and check the installation
polarity against the pictured instructions inside
the hand grips on the chassis.
Battery terminals in
the end plate
corroded and/or dirty
If the terminals on the battery end plate PCB
are discolored or corroded, clean them with a
pencil eraser.
Battery power too
low
Install fresh batteries.
Keyboard ribbon
cable loose or offset
Remove the shield (see Section 6.3.7.2
“Disassembly”) and check the ribbon cable
for looseness, position, and/or damage.
Internal short circuit,
battery wire pinched
Remove the connector end plate and carefully
inspect internal wires for damage (see
Section 6.3.7.2 “Disassembly”).
Internal power
connectors offset or
damaged
Check internal connectors for position,
looseness, and/or damage.
One or both fuses
opened
With an ohmmeter, check the resistance across
each fuse (one each on the two battery contact
PCB assemblies). Resistance must be less than
1. Replace any bad fuse (Ref. No. F1).
Continue to inspect the instrument for the
cause of fuse tripping. This cause could be a

Honeywell Vibrex 2000 Specifications

General

Brand	Honeywell
Model	Vibrex 2000
Category	Test Equipment
Language	English