- Joined
- Oct 5, 2017
- Messages
- 1
- Karma
- 0
- Gear owned
- Teac 144 Portastudio
i Just picked up a used teac 144 portastudio and there is a hum (sounds like when a guitar cable isn’t properly connected) when it’s in the “tape cue” setting (sound goes away in “remix” setting).
It also causes the VU meters for channel 1 and/or 2 to bounce around even without any input. This symptom is intermittent and sometimes goes away after it warms up.
Is this a common problem with these old units?
Some notes:
- All tracks/channels record & playback
- hum doesn’t record to tape
It seems like a bad ground connection somewhere, visually everything looked okay inside, how can I test this?
Also, would a blown component (cap, resistor, etc) cause a ground issue or am I mainly looking for a bad wire/solder joint?
Lots of questions, I’m a noob and it’s been a while since high school tech class.
Thanks!
It also causes the VU meters for channel 1 and/or 2 to bounce around even without any input. This symptom is intermittent and sometimes goes away after it warms up.
Is this a common problem with these old units?
Some notes:
- All tracks/channels record & playback
- hum doesn’t record to tape
It seems like a bad ground connection somewhere, visually everything looked okay inside, how can I test this?
Also, would a blown component (cap, resistor, etc) cause a ground issue or am I mainly looking for a bad wire/solder joint?
Lots of questions, I’m a noob and it’s been a while since high school tech class.
Thanks!