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 16 (click to view)
Changing the tuning interval
When using the CD player abroad, change the AM tuning interval, if necessary. Set the STEP switch (inside the lid) to â9 kHzâ or â10 kHzâ using a pointed material. 9 kHz area: Asia and Europe 10 kHz area: the U.S. A., Canada and South America
â¢ The interval will not change until you once turn off the radio and then turn it on again. â¢ After changing the tuning interval, you need to preset radio stations again.