Going back and forth from recording to dubbing tapes
We 99% of the time record tapes, but on occasion we have to make copies of the tapes we record. When going from recording tapes to dubbing tapes and then going back to recording tapes, all of a sudden the tapes aren't recording. any insight on what we're doing incorrectly when we try to go back into recording tapes
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Re: going back and forth from recording to dubbing tapes
If there is a switch (either a mechanical switch or a relay) that changes the recording mode (something like normal/dub or record/dub), it might have oxydized contacts and this may be the cause of the problem. Cleaning the contacts inside the switch/relay or replacing the switch/relay will probably solve this.
You may want to check the switch prior to removing it. You can do it with a continuity tester (possibly with the kind that gives a sound signal when the continuity is good).
Otherwise, if the switch can be disassembled in a simple way, see if the contacts inside the switch are brownish/oxydized, if so, you need to clean them, but you also need to clean the clips that connect the contacts. Some fine sandpaper will do the trick, but be careful when you disassemble and reassemble the switch, some parts can easily get damaged.
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There should be a button or switch that will select the recording deck and the dubbing deck. You put a blank tape into the recording deck and the pre-recorded one into the play deck. Pressing the record button on the dubbing deck, on some models should start the play deck running. If not press play on that deck.
Just connect the deck via tape 1 the out of the deck going to the in of the amp. While the out of the amp goes to the in of the deck.
The tape deck itself will automatically choose the player that plays the cassette. One will play the other will be on pause (if you press both play buttons) till the tape stops then the other will play. For recording from tape to tape one deck will be the copy and the other the copier. There should be a dubbing button which you press to record tape to tape. Some models have a high speed dub also. For recording from the amp unless both decks have record buttons you will only be able to record with one deck. Make certain the dub button is not set.
1. Insert a blank DVD disc in the DVD deck and close the disc tray. 2. Insert the VHS video tape you wish to copy into the VCR deck. 3. Find the place on the VHS tape from which you want to start dubbing using the PLAY, FF, REW and PAUSE functions. For best results, pause playback at the point from which you want to record. 4. Press the DUBBING button on the Remote Control or DUB on the front panel. The Dubbing menu appears. 5. Use the arrow keys to select the desired Record Mode: EP, LP, SP or XP. 6. Select [Dubbing] then press ENTER or DUBBING to start copying. 7. To stop dubbing at any other time, press STOP (x). Dubbing will stop automatically when the VHS tape ends.
Audio Dubbing on DV:
Here's how you do this: Play your tape on the TRV-9 and feed the signal into the TRV-900, using the Firewire connector. Set the TRV-900's audio option to record in the 12-bit mode. When this is done, you will have the video re-recorded on the TRV-900 and the audio laid down on the primary 12-bit audio channel. Then, you can run the tape back through for a 2nd pass in the TRV-900, with the recorder set to the audio-dubbing mode. The audio you put into the TRV-900 this time, will be recorded on the secondary 12-bit channel. You can select either 12-bit channel when you play the edited tape back or you can mix both stereo channels into the output.
Once you record on the 16-bit channel, you can't dub audio back onto that recording, without erasing the original channel, as the recording space for both 12-bit channels is occupied. You can't selectively re-record just audio onto the 16-bit channel either, without the video being re-recorded along with it. Both video and audio are sent over the same Firewire connector, so you can't input them from mixed sources, as you can with analog recordings.
Only the secondary 12-bit audio channel can be used in the audio-dubbing mode. You can't dub onto the 16-bit channel or onto the primary 12-bit channel. The primary 12-bit channel can be used only when you're recording video along with it.