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 82 (click to view)
Adjusting the Audio Level 4
Turn the AUDIO LEVEL CH1 control at the bottom of the front panel to adjust the input volume so that the audio level display appears as shown below. �When the input volume is normal, the audio level display turns ON up to the seventh of the eight level display bars from the left. �When the rightmost (0 dB) turns asterisk (E) mark, the input volume is excessive. Adjust the level so that the display bar does not turn E mark.
-40 -30 -25 -20 -15 -10 -5 0
E
When the optimal level cannot be set The maximum attenuation of the AUDIO LEVEL CH1 control at the bottom of the front panel is about 20 dB. When the optimal level cannot be set within this range, adjust the level using the AUDIO LEVEL CH1 control on the side panel. Using the AUDIO LEVEL CH1 controls at the bottom of the front panel and on the side panel Normally, the control at the bottom of the front panel is turned completely to the right and the recording level is adjusted using the control on the side panel. The control at the bottom of the front panel is used to throttle the level when the input level increases suddenly during recording.
