Tektronix 070-8462-03, Instruction Manual

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Operating Basics
1735 HD High Definition Waveform Monitor
2–13
For Memory and Communication tests, a CRT display informs the operator
whether the instrument passed or failed the test. If the instrument should fail a
test, refer it to a qualified service technician.
This is a test of the instrument’s capability to write, store, and read the
NOVRAM. In addition, the first message in this test mode gives the reference
number for the software version, the manufacturer’s nomenclature for the
NOVRAM (such as 2444), and the software copyright information.
Because the 1735 HD combines analog and digital capabilities, conversion from
digital to analog signals is an essential operation for the microcontroller. To test
this function, a test pattern (shown in Figure 2–6) is programmed into the
system.
Figure 2–6: 1735 HD DAC Test pattern
Selecting this option alternately enables and disables all front-panel LEDs
simultaneously. Press any key to exit.
The Key test determines whether the front-panel switches are operational. When
this test is selected, and a front-panel momentary-contact switch is pressed, the
name of that switch is displayed on the CRT. The MENU button is an exception;
it is known to be functional if the menu can be successfully entered / exited.
The MASTER / SLAVE test evaluates communications between the Microcon-
troller and the slave microprocessor.
Memory Test
DAC (Digital-to-Analog
Converter) Test
Light Emitting Diode (LED)
Test
Key Test
Communications (Comm)
Test