I need the availability of replacement "hang-up" knob for the executive series 100 mic

Frozen how? You can't open it ? Blackberry can do this sometimes if you drain the battery completely.. you must leave it plugged in until opens. Or, you can try a hard reset doing this:

1. Perform a hard reset to wipe all data from the BlackBerry Classic.
2. Open BlackBerry Link on your computer.
3. Connect the device to your computer using the USB cable.
4. Select your device on the left pane.
5. Go to "Back Up & Restore" > "Factory Reset" (Windows) or "BlackBerry Link" > "Preferences" > "Reload" > "Reload" (Mac OSX).

Contact your local service center directly or online here:
https://en-us.sennheiser.com/service-support-contact-center

I'm way too late with an answer here, but I'll add it anyway in case someone finds this page later on. The AEZ72909002 part is not for the LRG30355/LRG30357 series of LG gas ranges, but for the LRG 3095/3097 series. The only explanation I can imagine for LG reversing the knob insertion profile, is to force their LRG30355/30357 customers into expensive repeated replacements.

Heating up on replacing batteries is an indication of a short circuit.The construction of these cordless mic does not allow one to do any kind of repair. You will have to replace the whole circuit board which is available only with the authorized service center. And might cost you 70% the cost of the mic itself.

It could be a corrupted printer driver on your computer. You may need to completely uninstall the printer driver first before reinstalling the new driver. If you are using Windows, go to Start menu > Programs or All Programs > Lexmark 6500 Series > Tools > Uninstall. Once the uninstall process is complete, reboot pc when prompted.
Then download and install the driver by visiting the Lexmark website at http://bit.ly/hVA0vj. Select your operating system, download and execute the file. Follow the instructions on your computer screen.

Easy to do....But may need a service call from a pro to fix the underlying issue.
Take the bottom right little door off and try not to cut yourself reaching in..(OH TURN OF THE POWER). reaching in after looking with a flashlight try to grap the zip tie looking plastic hanging there and pull it down gently and it will unlock.

Of course make sure you tried to unplug it first for 10 minutes and then try turning it on again in spin mode.
Thanks,

http://www.nationalbusparts.com/MICROPHONE-EXECUTIVE-100-SERIES-5-PIN-P9513.aspx

Mike - it would probably help if you provide the name and model of the PA amplifier too... but even so:

It is doubtful that you'll be able to simply buy an "extension cord" to place between the end of the existing mic cord and the PA's mic jack. You could probably have a new, longer cord to replace the current short cord on your mic fairly easily. Since this would require soldering and use of special sheilded cables, you should probably have it done professionally. Just about any commercial or business radio shop should be able to swap the cord for one as long as you need.

I hope this helps.

The contacts in the timer are damaged.
The timer will need to be replaced as they are not repairiable by the counsumer.

I checked the price of the OEM timer and it is around $100

This is quite common with G2's, and really annoying!
If you are lucky, 50% of the time the red button is pushed inside the mic.
You need to remove the bottom section:
- open the battery compartment
- there should be 3 star-bit screws around the outside (remove)
- pull the bottom of the mic off

If the red button is not inside, they are available as a spare part from Sennheiser dealers.

Be carefull when putting the mic back together, it needs to line up correctly with the internal guides, forcing the base back on could damage the ribbon cable. when the line-up is correct it slides on very easily.

Best of luck.
PTB