Telequipment DM64, Manual

Page: 4 / 63

INTRODUCTION
The OM64 is an all solid-state, dual trace, storage oscilloscope. It uses a bistable CRT to provide
a large, bright display. Stored waveforms may be viewed for up to one hour.
In the non store mode, it performs as a conventional oscilloscope.
The design of this instrument is subject to continuous development and improvement, conse-
quently this instrument may incorporate minor changes in detail from the information contained
herein, which would, in the main, affect the Components List and the reader should pay particular
attention to the notes at the beginning of chapter 5.
To minimize the risk of damaging the storage screen, the following precautions should be
observed.
Because an undeflected bright spot on the CRT screen can burn the storage target, the
BR ILLlANCE control should be kept to the minimum required to produce a clear, well-defined
display. Care must be observed in the degree of writing-beam intensity used, particularly when using
slow sweep rates.
When attempting to store fast-rising or fast-falling portions of waveforms viewed at relatively
slow sweep rates, the high trace intensity required (due to the intensity difference between the
horizontal and the vertical segments) could cause storage target damage.
Avoid repeated use of the same base line position on the screen.
Do not leave a display on the CRT screen (either writing or stored) when the display is not
needed.
Do not leave STORE switches pushed in when the storage mode is not needed.
To obviate the risk of damage during transit and facilitate packaging, the owner is requested to
remove the po~er supply plug and NOT send the following items unless they are suspect, should this
Instrument be returned to TELEQUIPMENT for servicing.
Manual
Probes
Power Supply Lead
Plug Assemblies