Tascam GA-30CD will output sound through the headphones, but I cannot get it to output through the speakers, after the headphones are removed. How do I get sound through the speakers? Thank you. Johnowhite

Hi there,

If there's a cue output on the unit, use this to make sure it's actually outputting a signal.

Just put some headphones in the cue port and see if there's anything.

If there is, it may be a problem with your speakers or how you've connected it to your speakers.
If all else fails, it'll be your output board in the mixer that's the issue.

Good luck & have a great day! :)

usually with a blown speaker you will get sound but it sounds like there is an abundance of paper very loose on the speaker, so if there is no sound at all try taking the box apart if you are familiar with stuff like this and check to see if there are any loose wires or blown capacitors

Check to make sure the problem is not with the headphone jack or the external speaker jack as these are in the circuit between the power amp chip and the built in speaker.

You can also trace through the circuit with a music source on the amp input and with simple headphones check the signal path through the circuit until the music disappears. To do this, take a headphone and set it up with 2 test leads on the ends- attach one to ground.

Now your TL072 op amps have 2 outputs, pin1 and pin 7. The inputs for pin 1 are pins 2 and 3, and the inputs for the amp section outputing on pin 7 are pin 5 and pin 6. If you get sound at pin 1 or pin 7, you move forward to the next TL072. Check for output. Then move to the power amp chip on the heat sink. Pin 1 should be the output and will be wired to the headphone jack first. The external speaker jack second and the built in speaker third. The input for that power amplifier chip is pin 7 or pin 8 depending how it is wired.

If the amp chip is blown, make sure to put an adequate amount of thermal grease on the back side of the IC in contact with the heat sink so it can operate as cool as possible.

I suspect there is bad soldering on the circuit board in the vicinity of that button. The movement causes the connection to re-establish. It isn't necessarily one of the button leads. Look for a little grey line around the menicus of one of the soldered leads.

Check if headphone output is normal... sometimes the headphone jack switch fails and doesn't send to speakers when headphones are unplugged.

Contrary to what's posted above, the Marshall MG series does not pass the speaker power output through the headphone jack, and inserting the headphones into the jack does not disable the speaker. The headphone amp is a separate circuit and it's input is taken before the master volume. So Jan's post is exactly right. Turn off the master volume and turn up all the other gain/volumes as high as they will go. The other issue is that the headphone jack's output does not drive low efficiency headphones well, so you need some headphones similar to Sony's MDR-V700s to hear it well. Earbuds just don't cut it.

You can use headphones or monitor speakers that are hooked to an amp. If you don't have one ,consider downloading a manual:http://www.tascam.com/i-3582-232-128-1-4A000F90.pdf Pay attention to the caution on page 9 and the hookup diagrams are on pages 12 and 13. Hope this helps.

Read page 19 under Monitor section.You have to assign the signal to the monitor output you want. Page 36 has the details. All the info you need is here with some updates:http://www.korg.com/product.aspx?pd=191

There are some possibilities. One, your speaker may be blown or disconnected. Make sure the wiring is still connected to the speaker and if you have one, try measuring the resistance(impedance) of the speaker with a volt ohm meter.Do this unplugged from current and disconnect one of the wires from the speaker or you will get a reading from the output stage. Two if there is a heaphone or line out jack it may have become faulty. If you have sound with the headphones plugged in your amp is still producing sound. Some jacks are designed to interrupt the signal to the speakers allowing you to practice without bothering anyone. If your amp has that feature and you still have sound with the headphones and your speaker tests OK then your problem is the jack. Hope this helps.