Operator`s manual

Operating the MM-410/AVM-510A

6-20

Videotaping Waveforms

Because the output of the MM-410/AVM-510A is a video signal, you can handle it as you would

handle any other video signal. There are two video outputs, both available at the same time: one VHS

and one S-video. Note that the output is always NTSC when the input is a 525-line system, and it is

always PAL when the input is 625. It is not possible to look at a problem in 625 EBU and record the

output on an NTSC VCR.

Memory Recall with External Switches

In some environments it is helpful to have a quick way to recall MM-410/AVM-510A memories. For

example, in a manufacturing environment, where the MM-410/AVM-510A might not be in a location

convenient for a technician, it is helpful to be able to recall specific memory locations with the push of

a button.

The MM-410/AVM-510A’s DC CONTROL/ALARM rear panel connector provides this capability. A

momentary ground (earth) connection can recall any one of the first four memories as listed in the

following table. If you build a switch box to take advantage of this feature, make sure you use

momentary switches because if one of the recall pins is held to ground (earth), the MM-410/AVM-

510A’s front panel will be locked.

Pin Description

1 Recall memory 1

2 Recall memory 2

3 Recall memory 3

4 Recall memory 4

External Alarm and Memory Status

An Alarm Out connection is available at the rear panel of the AVM-510A. This connection, pin 5 of

the DC CONTROL/ALARM connector, goes to ground (earth) potential (from +5 V dc pull-up) each

time an automeasurement screen is displayed that has an out-of-tolerance condition and the MASTER

ALARM has been turned on.

NOTE:

The MM-410 does not support the Alarm Out function (pin 5) of the

DC/CONTROL/ ALARM connector.

To turn the MASTER ALARM on or off:

Press the Config button.

Select OTHER and then press the Enter button.

Select ALARM SETTINGS and then press the Enter button.

Select MASTER ALARM and then press the Enter button to turn it on or off. Note that the status

of this option is one of many items stored in memory.

NOTE:

The MASTER ALARM also goes to ground if Picture Guard is active and one of

the enabled measurements goes out of tolerance.