Converting Audio Cassettes to CDs

First off I assume you have the manual for you're 5700. if not a PDF copy is here
http://ec1.images-amazon.com/media/i3d/01/A/man-migrate/MANUAL000027911.pdf

Assuming you have a standalone tape deck that has phono inputs and outputs connection and recording recording should be easily achieved.
Forget the coaxial unless of course your tape deck has digital outputs.
Assuming it hasn't just connect the two output sockets from the tape dec which may be labelled REC out left and REC out right to the Line in (L) and Line (R) of the CD recorder.
The physical setup is now complete.
The increment level they refer to in the manual offers you a choice of 3 final decibel output levels in other words how loud it will be when it is finally recorded onto the disc.

the last paragraph on page 16 is relevant to the setup described above.

Page 15 of your manual is all you need to achieve tape transfer to CD.
follow the steps below and choose ANALOG the source to be played is your tape deck so once the process has begun press the play button on your tape deck and you should get a decent recording. Leave everything else at their default settings until you get a better understanding of how to tweak your recordings.
Personally I transfer audio tapes directly to my PC and Audio edit them until they are perfect but I've been doing this for years.

Good luck


here's a snippet

To record from an external source:
1. Turn power ON.
2. Place a recordable audio disc (CD-R or CD-RW) label side up
in TRAY II.
3. Close TRAY II. (When a blank disc is placed in TRAY II, the display
will show BLANK.)
4. Press INPUT until the source you want to record is selected.
DIGITAL OPTICAL:
record a source connected to the DIGITAL IN (OPTICAL) terminal.
DIGITAL COAXIAL:
record a source connected to the DIGITAL IN (COAXIAL) terminal.
ANALOG:
record a source connected to the analog LINE IN jacks.
5. Select the desired mode of track division (track number
assignment) by pressing the MANUAL/AUTO button (see the
ADVANCED RECORDING section for more information).
6. Press the RECORD button.
The unit enters record pause mode.
The PAUSE [ ] icon and REC blink on the display.
7. Press the PLAY (ENTER) [ ] button of TRAY II to start recording.
8. Play the source to be recorded.
• During digital recording, if the input signal stops for 5 seconds,
recording will stop.
• During analog recording, if the input signal stops for 20 seconds,
recording will stop.
• If the unit detects copy-prohibit signals during recording,
CAN’T COPY appears on the display and recording is stopped.
To stop recording: Press the STOP [] button
To temporarily pause recording: Press the PAUSE [ ] button.
Remember that every time recording is paused or stopped,
a new track number will be assigned.