just got a s500 deluxe

just got a s500 deluxe it has 3 knobs one(push/pull)=volume, closest to the neck 2=tone what is the third one for
Is there an owners manual I can down load for the s500

just got a s500 deluxe it has 3 knobs one(push/pull)=volume, closest to the neck 2=tone what is the third one for
Is there an owners manual I can down load for the s500

NOTE: I moved your post (and renamed the topic).

Here's the S-500 control layout (but with the expander switch as a toggle switch). The expander function on yours is when the volume knob is pulled up.



The tone controls are called the PTB (Passive Treble and Bass controls). See this post in the G&L Knowledgebase Re: Is my PTB circuit faulty?.

For setup information, use this Manual, Version 2 AND one of these posts, based upon your bridge type: Current Factory setups for DF vibrato G&L guitars or Current Factory setup for G&L guitars with hardtail bridges.

For posting a photo of your new G&L (which is required as proof your guitar exists ) see Tutorial: Posting photos.

Hope this helps.