Re: Tektronix 545 Oscilloscope fault
hello Dave,
1.) check -150V
first of all you have to check the voltages from the PSU, always !
And always at first the -150 volts bec. this is used for reference to provide all other voltages in that PSU. If there is another then -150V , there is a pot to adjust it, and if this will not help write here again. Adjust the -150V very exactly, <1%
Tell us if you have a running scope there, if yes check the ripple on the -150V also,
if you have a high voltage test head for the multimeter or VTVM?
if you have a valves tester?
2.) check all other voltages from the PSU
+100V
+225V
+350V
+500V
if possible give us a screen picture and of coarse the results of your test.
greetings from germany
Martin
! take care, the PSU is very powerful, life dangerous voltages !
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