Tektronix 442, Инструкция по эксплуатации

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Section 4—442 Service
CALIBRATION PROCEDURE
GENERAL
Intro d uctio n
This section of the manual is in two parts: Performance
Check and Adjustment Procedure. Each subsection has a
different purpose and important information regarding
their use is included at the beginning of both subsections.
Test Equipm ent Required
The test equipment listed in Table 4-1, or an equivalent
piece of test equipment, is required if the complete
Performance Check and Adjustment Procedure is to be
accomplished on the oscilloscope. A partial list of test
equipment is provided in the Performance Check subsec­
tion to list the required test equipment to complete the
Performance Check only.
In Table 4-1, the specifications given fortheequipment
are the minimum necessary to provide accurate results.
Therefore, the equipment used must meet or exceed the
listed specifications. Detailed operating instructions for
the test equipment are not given in this procedure. Refer to
the appropriate instruction manual if moretest equipment
operating information is required.
Table 4-1
TEST EQUIPMENT REQUIRED
Description Minimum Specification Usage Examples
1. Amplitude
Calibrator
Amplitude accuracy, within
0.25%; signal amplitude,
10 mV to 10 V; output
signal, 1 kHz square
wave.
Vertical deflection
accuracy checks,
X-Axis deflection
check, vertical gain
adjustment. a. TEKTRONIX PG 506
Calibration Generator.3
2. Digital Voltmeter Range, 0 to 9 V;
dc voltage accuracy within
0.3%; display, 4 1/2 digits.
Power supply
adjustment.
a. TEKTRONIX DM 501A
Digital Multimeter.3
3. Leveled Sine-wave
Generator
Frequency, 50 kHz to
above 35 MHz; output
amplitude, variable from
0.5 to 5.5 V p-p; output
impedance, 50 O; reference
frequency, 50 kHz; ampli­
tude accuracy, constant
within 3% of reference
frequency as output
frequency changes.
Bandwidth checks,
Z-Axis check,
Triggering adjustments,
CMRR check.
a. TEKTRONIX SG 503
Leveled Sine wave
Generator3 (with
included precision
cable).
4. Square-wave
Generator
Fast Rise output, 100 kHz
with 2 ns or less risetime,
and amplitude of at least
50 mV into a 50 O termination;
High Amplitude output
of 1 kHz with amplitude
of at least 5 V into a
50 Q termination, and
at least 10 V unterminated.
Vertical high-frequency
compensation and
attenuator adjustment.
a. TEKTRONIX PG 506
Calibration Generator.3
REV A MAY 1980
4-1