Portastudio transport causes electrical hum/pulse

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samgraysound

Well-known member
Joined
Jun 9, 2014
Messages
285
Location
Olympia, WA
Hi,

I'm working on a Tascam Porstudio 414 mk2 and its doing something I've never seen before.

Engaging the transport causes noise on the audio channels. In rewind or fastforward it is a constant loud hum/buzz. In playback or record it is a series of pulses 1st a quiet one then 5 loud ones, with the last two slightly closer together.

The noise is on all the tracks regardless of what input they have selected.

Have you seen this before? What could it be?

Sam
 

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