Why don't either the charging or on/off lights come on when my transmitter is plugged in?

There's an auto-shutoff feature which kicks in when the audio input to the transmitter is too low. That's usually indicated by the green light on the transmitter turning off. Just increase the volume on the device connected to the transmitter, and you should see the green light come back on. As long as that's on, it'll stay transmitting and shouldn't just cut out to static.

Instructions
1
Set up the transmitter. Wireless headphones rely on a transmitter that sends audio via infrared or radio waves to your headset. Use the digital audio output (coaxial or optical), RCA outputs (red and white) or headphone jack on your TV to connect the transmitter. The connection will depend upon which outputs are available on your TV and/or the transmitter.
2
Use an RCA-to-headphone adapter. If you don't have a headphone jack on your TV and the transmitter includes only a headphone connection, connect an RCA-to-female headphone connector. This will allow you to plug the wireless transmitter into the female headphone end and then hook the RCA ends into your television's audio outputs. You may also need a 3.5 mm (mini jack)-to-1/4-inch adapter if the headphone plug on the transmitter doesn't match the television jack.
Read more : http://www.ehow.com/how_4883556_use-wireless-headphones-tv.html
3
Set the transmitter on top of, or next to, the television. For infrared transmitters, you'll need a direct path between the headphones and the transmitter. Placing the transmitter on or near the TV will allow you to take advantage of the clear path you already have.
4
Plug in the transmitter and turn it on. Charge the headphones if necessary.
5
Turn on the headphones. Adjust the volume and settings and you're ready to watch TV.
Read more : http://www.ehow.com/how_4883556_use-wireless-headphones-tv.html

good luck

The static you're experiencing with your Sony wireless headphones can be caused by various factors, including interference from other electronic devices, radio frequency congestion, and distance from the transmitter. Here are some things you can try to minimize the static: Move the transmitter closer to your headphones: The closer your headphones are to the transmitter, the stronger the signal will be and the less static you will hear. Reduce interference: Try turning off any other electronic devices that may be causing interference, such as microwaves, wireless routers, and cordless phones. If possible, move the transmitter away from these devices. Change channels: Some wireless headphones have multiple channels to choose from. Try changing the channel to see if that reduces the static. Check the batteries: Make sure the batteries in your headphones are fully charged or replaced if necessary. Reset the headphones: Sometimes resetting the headphones can help eliminate static. Refer to the user manual for instructions on how to reset your specific model. Contact Sony customer support: If none of these solutions work, you may want to contact Sony customer support for further assistance or consider getting a replacement if your headphones are still under warranty.

The volume of the sound source (Mac) must be sufficient, otherwise the transmitter automatically turns off. Turn up the volume on the Mac, and turn down the volume on the headphones. There is no way to disable the Automatic On/Off function of the transmitter.

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First thing is you need to have a signal going to the headphones for them to work.

If you are getting a signal the green light should be lit.

If only the red lamp is lit the headphones are not getting a signal.

If hooked into a television you should have them plugged into a Fixed Output not variable output..

If you only have a variable output then you must turn the speakers off on the television and then turn the volume up on the TV in order to send a signal to the headphones.

If you are using a amplifier make sure you are using the correct output. Tape Monitors generally will not work as this output is not amplified.

Lastly try using an rca to headphone adapter and plug them into a headphone jack.

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Plug the red and white cables from the transmitter on the headphone set into the red and white slots for audio out on the TV this will supply the sound to the transmitter which in turn send it to the headphones. The transmitter must also be plugged in to the wall outlet for them to work, and batteries in the headphones must be good.

BATTERY INSTALLATION AND INFORMATION
Your wireless headphone unit requires two rechargeable AAA batteries.
Rechargeable batteries are uncharged when you purchase them. Before
you can use the wireless headphones, the batteries must be charged for
16 hours. Follow these steps to install and charge the batteries.
Installing the Rechargeable Batteries
Take care to follow these steps to correctly install the batteries.
1. On the right headphone, locate the battery compartment (1).
Use the finger depression on the compartment to turn the battery
compartment cover counterclockwise to remove the cover.
2. Insert two AAA rechargeable batteries, carefully following the
markings inside to ensure the batteries are inserted properly, with
the + and - ends in the correct positions.
3. Replace the battery compartment cover.
Charging the Rechargeable Batteries
To recharge the headset unit, follow the directions below. Note: The
cradle/transmitter on the WHP141 is not a recharging cradle, although
you may place the headset in the cradle during recharging.
Follow these steps to recharge the NiMH rechargeable batteries.
1. Make sure the ON/OFF switch (2), located on the right headphone,
is in the OFF position.
2. Connect the AC/DC main power adapter to the DC IN power
supply socket (11), located on the back of the cradle/transmitter.
3. Plug the adapter into an electrical outlet.
4. Connect the charging cable (10), located on the back of the
cradle/transmitter to the recharging input (3), located on the right
headphone. The headphones can either be placed in the
cradle/transmitter or placed next to the unit. If the headphones are
connected correctly, the charging LED indicator light on the
cradle/transmitter (8) illuminate.

There should be lights on the front of the headset's transmitter box. Are these lit up?
Also, there should be a "palm tree" icon on the left earcup of the headset. When you turn on the headset from the POWER button, the palm tree should flash about once a second. Is it flashing?
If not, you may need to "pair" the headset to the transmitter.

There is a reset button on both the headphone and the transmitter. Try to reset them both before attempting to pair them again. Since the led won't turn on there is a possibility that the battery is not charging. Is the orange light working when the headphones are charging? It should be and then it should turn off when the battery is full.