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 32 (click to view)
Fig. 8.11
REGULATION OF AIR SUPPLY TO OVEN AND GRILL BURNERS
Using a cross-head screwdriver, slacken the screw securing the air flow regulation collar (fig. 8.11 and 8.12) and move the collar forward or backward to increase or reduce the air aperture in accordance with gas type and the indications in the � TABLE FOR THE CHOICE OF THE INJECTORS�. Light the burner and check the flame.