Latest News
New found issue with USB400/AU400 products.
A safety feature to prevent loud audio shock from sending over the internet via Skype, the newer versions of Skype (v.1.4 onwards) have included a new audio adjustment feature which locks up the microphone muting function on the USB headset.


- Click here to learn more
- Or simply install the Accutone USB software CD-ROM accompanied by the product.
- Or uncheck the Microphone Boost function of your Windows XP - under control panel.
- Note that only Windows version are affected, Mac OS X has no such problem


Frequently Asked Questions
Amplifiers - Apollo Series 1100 / Apollo Series 1200
There is no response from the unit. - Check if the batteries are too low, replace if required.
- Check if the polarities of the batteries are placed correctly.
- Make sure the on/off switch is switched to ON.
- Check if the configuration switch position is properly selected.
- Volume control and mute button are adjusted properly.
- Headset/handset and Telephone/computer switches are properly set.
- Check to see if the quick-disconnectors are connected.
- Check if the telephone patch cable is properly connected.
I cannot hear any dial tone or my caller speaking to me on the other side.. - Check if the Telephone/Computer switch is selected at telephone.
- Make sure the configuration switch is properly selected and try other positions until you can hear a tone.
My caller cannot hear me at all or cannot hear me very well. - Make sure the mute button is not pressed down.
- Use the screwdriver to tune the mic adjustment (1100) or slide the mic adjustment switch on the until top (1200) to see if the mic volume is set too low.
- Try to select the proper settings with the configuration switch.
I hear my own voice too loud and there is a squeling sound. - The rotatary mic adjusment (1100) or the sliding mic adjusment (1200) is set to too high volume.
- Reduce the microphone volume and retest.
When using with my computer, the sound is too loud even though the volume is set at minimum. - Take a look at the connection on your computer where the cables connect with the Accutone amplifier.
- There should be 3 jacks on the computer end. (line-in, line-out and speaker).
- Make sure the line-out cable from the Accutone amplifier is connected to the line-in jack
- Make sure the line-in cable from the Accutone amplifier is connected to the line-out jack, NOT the spaker jack.
Headsets - General Enquiries
I tried to directly connect an Accutone headset to my telephone and there's no response. - The pin-alignment for each telephone set is different, and although the Accutone headsets may fit with some brand of telephones, there are others that do not match.
- You will need a telephone adaptor from Accutone series, C100 or C333.
I am using Accutone's telephone adaptor C100 with my other brand telephone headset, and it doesn't work. - Accutone's telephone adaptor connects to an Accutone headset via a preset pin-alignment, other brand headset with a different pin alignment may not work.
- The telephone adaptor only configures the connection to the telephone, so we recommend you use the adaptor with an Accutone headset.
I am using Accutone's telephone adaptor with an Accutone headset, but the microphone volume is really low. Person on the other end cannot hear me. - Different telephone models may use different types of microphone in their handset, and because our headset connects to the handset jack, some telephone (usually older versions) will require an amplification for the microphone to work.
- You will have to use an amplifier to pair with this telephone, consider Apollo Series 1100 or 1200.
I tried to connect my TM1200 headset to my Apollo Series 1100 amplifier, and it doesn't work. - The TM1200 headset is designed to only pair with the 1200 amplifier, due to the online LED function. It will NOT work when paired to the 1100 amplifier.
- Apollo Series 1200 amplifier and the TM1200 headset is designed to work as a pair, and we do not recommend using the 1200 amplifier with any other headsets either.
Troubleshooting
Special Section for USB300 - on Microsoft 98SE uhcd.sys update patch problem

It has been reported that in some Windows 98SE configuration PC, especially those using AMD processor (running at 350MHz or faster) or PC that uses VIA Technologies USB Controller, the Accutone USB AU300 Audio Adaptor does not function properly.

Problems include:
- User interface does not show "Accutone USB Audio Adaptor"
- Microphone muting function does not operate properly
- Volume adjustments reset upon pressing/releasing the mute button

Solution:
Make sure that you have installed your USB driver first, check your device manager to ensure the following drivers:
(These entries can be under USB interface section or Sound, Video and Game Controller section of the Device Manager)
(1) USB Root Hub
(2) HID-Compliant Host Controller OR USB Composite Device
(3) USB Audio Device (usually under Sound, Video & Game section)

Then download the updated patch of uhcd.sys file from Microsoft's website, and upon installation restart your PC. If after restarting your PC, there is still no response, open up Sound and Multimedia in Control Panel, and go into Audio tab, make sure the Preferred Device is selected with USB Audio Device or Accutone USB Audio Adaptor. (The name of the drive does not affect the proper function of the device, be it USB Audio Device or Accutone USB Audio Adaptor.)

Then verified by making sure the Microphone option is checked, and that the volume is not muted.
Telephone Amplifier Section

(1) First of all, check if the batteries are working.
(2) Unhook everything and restart the installation.
(3) Unplug the HANDSET plug from the telephone base unit, plug it into the TELEPHONE HANDSET jack on the back of the amplifier.
(4) Use the telephone patch cable provided and plug one end to the TELEPHONE UNIT INPUT jack on the back of the amplifier.
(5) Plug the other end of the patch cable to the HANDSET jack of the telephone base unit.
(6) Disregard the PC connection at the moment.
(7) Plug in the corresponding headset (1100 - TM333EM/TM363 series) (1200 - TM1200 only) to the HEADSET jack in the front of the amplifier.
(8) Do not mix and match un-compatibile headsets, do not use headsets of other brands.
(9) Turn on the power of the amplifier.
(10) Select the TELEPHONE/PC switch to TELEPHONE.
(11) Select the HEADSET/HANDSET switch to HANDSET.
(12) Pick up the telephone handset from your telephone base unit to see if it works.
(13) If it doesn't, go back and do the setup again.
(14) If it does, the setup is correct, place the handset back into its cradle.
(15) Make sure the MUTE button is not pressed.
(16) Now select the HEADSET/HANDSET swithc to HEADSET
(17) Make sure the headset is connected to the amplifier, wear the headset.
(18) Lift the telephone handset from its cradle.
(19) Your telephone may have a HEADSET or SPK-PHONE button to replace lifting the handset, but only use it when the setup is successful.
(20) Test the headset, can you hear any dial tone?
(21) If no dial tone, slowly slide the 6-position configuration switch until you can hear one.
(22) If you can hear a dial tone, but the microphone doesn't seem to work on all 6-position, find a position where there's a clear dial tone.
(23) Slowly increase the MICROPHONE VOLUME slide switch (or rotatary switch for 1100), until you can slightly hear yourself speaking.
(24) Remember NOT to set the microphone volume too high, feedback (squealing) sound may result, and could cause damage to your ear.
(25) Your amplifier should be able to function fine, if it still doesn't work, contact your distributor.

Telephone Adaptor Section

(1) Unhook everything and restart the installation.
(2) Unplud the HANDSET plug from the telephone base unit, and plug it into the TELEPHONE HANDSET jack on the adaptor.
(3) Connect the telephone patch cable on the adaptor to the HANDSET jack on the telephone base unit.
(4) Plug in the corresponding headset (all accutone headset should fit, except the TM1200) into the HEADSET jack on the adaptor.
(5) Do not use headsets of other brands with an Accutone telephone adaptor.
(6) Select the HEADSET/HANDSET switch to HANDSET.
(7) Pick up the telephone handset from your telephone base unit to see if it works.
(8) If it doesn't, go back and do the setup again.
(9) If it does, the setup is correct, place the handset back into its cradle.
(10) Make sure the MUTE button is not pressed (only applicable to C100).
(11) Select the HEADSET/HANDSET switch to HEADSET.
(12) Lift the telephone handset from its cradle.
(13) Your telephone may have a HEADSET or SPK-PHONE button to replace lifting the handset, but only use it when the setup is successful.
(14) Make sure the headset is connected to the adaptor, wear the headset.
(15) Test the headset, can you hear any dial tone?
(16) If no dial tone, slowly slide the CONFIGURATION switches (A,B,C & 1,2,3,4) to try all 12 combinations between 2 buttons.
(17) You should be able to find a proper setting where you can both hear and speak clearly.
(18) If none of the positions offer good mic signals, you may need to contact your distributor for using an amplifier with your telephone.
Accutone Technologies 2004.