Tektronix 1705A Spectrum Monitor Vii, Considerations for custom installation of an instrument

Table of Contents

Figure 3-8: Considerations for custom installation of an instrument	3-8
Figure 4-1: 1705A L-Band comb display showing the areas each of the six sweep shaper
variable resistors adjust	4-8
Figure 4-2: Output duty cycle of the pulse width modulator used in the +18 V Power Supply	4-13
Figure 4-3: Pinout of the CRT Socket	4-19
Figure 5-1: Initial equipment connections	5-6
Figure 5-2: Check time mark graticule alignment	5-8
Figure 5-3: Output of the SG503 connected directly to the 1705A 70 MHz INPUT	5-9
Figure 5-4: Equipment connections for L-Band checkout	5-12
Figure 5-5: Aligning L-Band time markers with the graticule lines	5-13
Figure 5-6: Using the UHF Signal Generator to check L-Band Span/Division, Readout, Gain,
and Flatness	5-14
Figure 5-7: Adjustment locations	5-19
Figure 5-8: DAC check waveforms used to check Focus, Astigmatism, Geometry, and setting
of the Trace Rotation	5-20
Figure 5-9: Location of the shorting strap used when adjusting sweep length	5-21
Figure 6-1: Using the 1705A menus	6-4
Figure 6-2: 1705A Test menu, displayed when Test is the Main menu selection	6-5
Figure 6-3: 1705A CRT display when the NOVRAM Test has been successfully completed	6-6
Figure 6-4: 1705A power up error message	6-7
Figure 6-5: DAC check waveform	6-8
Figure 6-6: Circuit board assembly locations	6-9
Figure 6-7: Multiple pin connectors used in the 1705A Spectrum Monitor	6-11
Figure 6-8: Bezel securing screws	6-20
Figure 6-9: Screws securing the rear panel	6-22
Figure 6-10: Screws securing the front panel board (A2) in place	6-23
Figure 6-11: Screws holding the Main board (A3) and the Tuners (A5 and A6) in place . . . .	6-24
Figure 6-12: Removing the Power Supply board	6-26
Figure 6-13: Mounting screws for the LNB Power Supply circuit board, A4	6-26
Figure 6-14: Repackaging a 1705A instrument	6-27

1705A Spectrum Monitor vii