I purchased the unit from a private party and the original owners manual was not available. Having the ability to download it was extremely helpful and clarified operating the equipment immensely. This is a complicated unit and without the manual I would not have been able to maximize it's potential. Thank you.
Being a user of older radios of many kinds, preferring them over more modern rigs, this manual was invaluable in the programming of my two. I now know for certain what the assorted buttons functions are, and am very grateful to have found this excellent site. Many thanks for your assistance, Tony.
5 star quality on these downloadable manuals. Easy to read and all the information is there. A must when doing a custom install or needing to service your precious old school electronics.
Text excerpt from page 21 (click to view)
To stop recording
Press x.
Note
Sound Adjustment
You cannot listen to other sources while recording.
Tips
Adjusting the sound
You can reinforce the bass and create a more powerful sound.
Press GROOVE on the unit.
� For MHC-RG555, when you record on both sides, be sure to start from the front side. If you start from the reverse side, recording stops at the end of the reverse side. � For recording from the tuner: If noise is heard while recording from the tuner, move the respective antenna to reduce the noise.
Each time you press the button, the display changes cyclically as follows: GROOVE ON* t GROOVE OFF
* The volume switches to power mode, the equalizer curve changes, and �GROOVE� lights up.
Sound Adjustment
Using the sub woofer
(MHC-GX750/GX450/RG551S/RG444S/ RX550 only)
You can use the sound of the sub woofer to suit the sound source.
Press SUB WOOFER ON/OFF on the sub woofer.
The indicator lights up while the sub woofer turns on. Press the button again to turn off the sub woofer.
Tip
You can use VOLUME +/� (or VOLUME control on the unit) to adjust the volume of the sub woofer linked to the front speakers.