Volume meters are not picking up sound and is not recording,

the switch, has three positions. Typically forward or up will be your neck (or rythm) pick ups, only and will work with one volume knob(usually top right as your looking at guitar), and one tone knob ( top left as your looking at the guitar). when the switch is in the far right or all the way down position, that will be the saddle (or lead) pick-ups. And that works with only one volume knob(bottom right as your looking at the guitar) and the corresponding tone knob. when the switch is in the middle position, botjh volume knobs work and both tone knobs work. You've gotta kinda play around with them to find whatever sound yopur looking for. and tone knobs are very subtle in their changes. good luck

have you checked the speaker leads in the back to make sure they are hooked up> if so, you have power to amp? Volume knob turned up? is guitar cord good? (try it in a different amp , or check w/ an ohm meter) . Does the guiter have active pick-ups? If so, is battery good? and last, is the volume knob on guitar up" try all that and get back to me

Perhaps your computer's sound card is unable to play back at the bit rate and kHz you are recording at on your (mobile?) recorder. I'm not familiar with the RC-50 but if you are recording at 24 bit for example and your computer's sound card is only able to play back at 16 bit it may not reprosuce any sound. Usually you will get an error saying so. Have you tried different playback software?

If the volume control is analog (meaning it is an old rotary and not digital) - it may just require cleaning.
Pick up a can of electronic switch cleaner.

If it's a problem with the drivers, when you go to the manufacturer's website to download them, merely type in the exact product you have and the website should give you the specific driver/s for your product. If you go to the icon for XP's volume and recording tools, make sure that you've engaged the mic to function and that it functions at a sufficient level. You can find those tools under Control Panel, and then select SOUND, and then select RECORDING to adjust the mic functions.

First, I could NOT find an MXL99 microphone... IF you have an MXL990 microphone, you can STOP trying to have the Alpha read it because it won't !!! The MXL990 is a condenser mic and requires that Phantom power be supplied to it and the Alpha does NOT have Phantom power.
I have found a common problem on the audio interface inout is having to GO INTO the windows Sounds and Devices and verifying that under the VOICE tab, checking that the inout device is listed AND then checking the volume is turned up in that window... It seems like you have to verify everything and tweek a dozen places to get everything right to work. Having to look under the "VOICE" tab is not a good description of where the Alpha input control should be... so anyway, check that as well as it is not MUTED in that window. With Adobe Audition, make sure you set under the options, the "metering" to monitor the input recording level.

I have a 1222FX and here is how I have it hooked up. I have a cord that has an 1/8" stereo plug on one end and two mono RCA jacks on the other. The 1/8" end goes into my line in on my sound card. (not the microphone in ). The RCA jacks are hooked to two cords that I made up that have a RCA plug on one end and a XLR plug on the other. The XLR plugs are wired so that they are unbalanced. Pin one is ground and pins two and three are soldered to the positive. I used shielded cable and the shield is soldered to negative on the RCA jack but left unconnected on the XLR jack. This prevents hum. You may be able to purchase premade cables but I made my own. The XLR jacks are plugged into the left and right balanced or unbalanced Main output jacks of the mixer. On your computer click Start then Control Panel. Click Sounds and Audio Devices. Make sure that Place Volume in Taskbar is checked. Place the volume slider in about halfway position if there is one. Click Advanced and a control panel should pop up. It will say Play Control at the top. You will want your speaker volume about half way also. Make sure line in is NOT muted (checked ) and is also about half way up. Plug headphones into the mixer and get a good sound with the microphone you are using. If it is a microphone that requires phantom power make sure you turn the power to the mixing board on first, then the phantom power. Do this with the main volume control all the way off. When the mixer has warmed up for a minute or so you can bring the volume up to get a good sound. When you are done recording, make sure you slide the volume down again. Then turn the phantom power switch off and then the main power. This procedure protects your equipment. On the Play Control volume panel on your computer click on Options then Properties. You will see that it is checked for Playback. Check it for recording. Make sure that where it says Show the following volume controls, it has Playback volume and at least Line In checked. Now check the Recording Controls. Where it says Show the following volume controls make sure that at least Line In is checked. Click on O.K. and your Recording Control window will pop up. Make sure that Line In select has a check mark. Slide the volume up until you get a good sound through your computer speakers or your headphones if you have them plugged into the computer. If you accidentally close this window, Click on the speaker symbol in your taskbar at the bottom. You will have to switch between Play Control and Recording Control as before. You didn't mention what software you are using so I advise you to read your manuals carefully. The manual for the mixer has a page with wiring diagrams for cables. Here is a link to a site with lots of good info and an invaluable FREE book that you can download:http://www.recordingreview.com/ I hope this helps.

if the signature ex has any special plugs then the actuall diagram for that guitar is needed. but if it uses the standard two or three potential meter ( volume knobs and tone knobs or (pots) ) with a pick up selector and an input. then you can use any guitar wiring diagram and i think you can find that on web. wiring the pick up should be shown in the diagram with the pick up selector.

try connecting speakers to another sound source or if you have access to a ohm meter, check impedance of speakers, should measure 4~8 ohms.

Check if you selected the mic as the default audio input on the respective programs.