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Author Topic: Tektronix DPO3034 rotary encoders  (Read 1639 times)

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Offline dzsekiTopic starter

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Tektronix DPO3034 rotary encoders
« on: March 22, 2019, 02:58:47 pm »
Can anybody tell off-hand what type of rotary encoder is needed in a Tektronix DPO3034 scope? I am going to replace the multifunction and vertical position encoders, I believe they are the same. It would be nice if I would not have to leave the scope gutted until the new encoders are arriving.
This scope is at my work, and was rendered to be uneconomical to repair officially (got a 3000€ quote for it!!!), and I figured it might worth a try to replace those few encoders on an otherwise functioning scope...
Thanks!
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HP 1720A scope with HP 1120A probe, EMG 12563 pulse generator, EMG 1257 function generator, EMG 1172B signal generator, MEV TR-1660C bench multimeter
 

Online coromonadalix

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Re: Tektronix DPO3034 rotary encoders
« Reply #1 on: March 22, 2019, 08:53:20 pm »
can you get some numbers on them ?? by slightly dismantling the front panel vs the pcb ??
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Offline dzsekiTopic starter

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Re: Tektronix DPO3034 rotary encoders
« Reply #2 on: March 23, 2019, 08:19:25 pm »
I'll look at it on monday. I was just hoping that others probably did similar repair on this particular model family so they would know a suitable replacement.
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HP 1720A scope with HP 1120A probe, EMG 12563 pulse generator, EMG 1257 function generator, EMG 1172B signal generator, MEV TR-1660C bench multimeter
 

Offline pbarton

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Re: Tektronix DPO3034 rotary encoders
« Reply #3 on: March 23, 2019, 08:36:30 pm »
Appears to be a common problem, see....


The replacement encoder was an Alps EC12E24104A6 available from Farnell:
« Last Edit: March 23, 2019, 08:43:35 pm by pbarton »
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