Thank you for having the manual I needed for an older model Aiwa stero I had found on Ebay --- I wanted the Aiwa because I had tapes and cd's but I did not have a manual as to how to operate the system... I found what I needed and it has enabled me to set the system up for my enjoyment.
I wished detailed information of the JBL S310 and here I found it! Very happy with the service from this site!
Text excerpt from page 25 (click to view)
Changing the FM reception mode
When a broadcast is in stereo, �ST.� lights up and you can hear stereo effects. However, if an FM stereo broadcast is hard to receive or noisy, you can select monaural (MONO) mode. Reception improves, but you lose the stereo effect.
To select the monaural mode
�MONO� appears.
FM
MODE
MONO
107.00MHz
To cancel the monaural mode
Press MODE once again. �MONO� will go out. The monaural mode is cancelled also by changing the frequency.