Question about Musical Instruments
Stumbled across your post on the Tascam 414 whilst searching for a schematic for my 2 four tracks. I use them at home and in the studio for arranging etc. before going to 24 trks...they both have the same problem, as far as I can tell. The motors have deteriorated and run slow.
I took the 424's top off, disconnected the molex connectors that attach the mixer to the assembly and the ground, and started examining the "relay" (cassette part). When I manually move the belt, the cassette returns to the proper pitch for a moment, and then slows within a few seconds.
Both of them play back super warbly, and I don't know if it's a belt or the motor itself...can these be replaced and do you know if Digikey, etc. has this part? If I can troubleshoot this then it will be instructive in my Optigan repair project (same issue--motor speed).
Sounds to me like you have the midi tracks outputting to the microsoft midi mapper or wavetable synth, which is built into the sound chip in your pc, and that this is conflicting with the mobilepre sound card - midi is just data, no audio, needs to drive some kind of synth. what you want to do is disable your internal sound card thru device manager, then just use the m-audio mobile pre as the input/output sound card in ASIO mode - you'll need to monitor via the headphone jack on the mobile pre or plug speakers into the line outs on the interface.
Then do tutorial 8 (in help files) on using soft synths - INSERT>SOFTSYNTHs creates a midi track and an audio track in a track folder.
Posted on Aug 07, 2008
I have a boss 1600 and ive used it in the way that sounds similar to you situation.It sounds like you have overdubbed track 1 to next track.If you dont want to hear track 1 while rec. track 2 turn fader down, unless you have already recorded or overdubbed 1 to 2.You should be able to hear track 1 unless you turn fader down or cancel tracksound for the time being.track 1 swhould be heard but it wont be re-recorded youll only hear it unless you turn fader down.Thats how mine works anyway.It lets you hear it if you want but wont record until you song save or during bounce nd mixdown.Then you select the tracks and or the virtual track you want to use.Id try to undo or stat again and read about the overdubb in manual.Im sure youll figure it out.I cant hardly imagine what all that 8800 has and is capable of doing.But ive seen one and i think the midi devices work alot alike.Hope you get it.Praisehim316.
Posted on Oct 16, 2008
I suspect this uses an optical pickup. You need to open the unit and look at the sensor. If it is an optical pickup, then use the canned air pressure to clean the area of dust.
If it happens to be a mechanical switch, then the mechanical encoder has to be replaced.
Posted on Sep 09, 2009
Passive loudspeakers are connected to the two "Speakon" connectors on the back of the unit. BUY GOOD cables for your speakers!!!! Whatever you do don't have a speaker line come loose while driving audio out !!! You will arc- out the rear-most power amp... I know, I repaired two of these now with the problem.
Connect the recording device to either the "tape OUT" RCA jacks or either of the pairs of MAIN out TRS jacks.
Set the slide switch for the MAIN L/MAIN R (upper position) leave this in this position unless you understand what the other positions are for to avoid damage. You will NOT need the other positions.
Further: Power ALL interconnect devices from the SAME receptacle source to avoid ground loops and possible damage.
YOUR passive speakers should be rated at least 300 Watts RMS continuos power handling or 600 Watts peaks.
Drive consumer stereo speakers with this and you will smoke the speakers and MAYBE blow the amp. This is a powerful amplifier and if you don't have at least 15 inch speakers you MUST really hold down the volume lest you blow the speakers.
Above all read the manual... yes, it is a bit hard to understand...
If you have a problem you can contact me by email for a bit of help. I have wo of these I have been using at venues now.
Posted on Apr 24, 2010
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