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Check power connection to the wall, check fuse box to make sure the fuse switch that handles th A/C unit hasn't been tripped, check all GFI outlets. If all else fails call your HVAC/Air conditioner repair company.
My Tripp LIte Omni 1000 LCD almost caught on fire.
I had been experiencing a spike in my power bill to the tune of 1000 Watts an hour for everything running - 24x7. I started the survey of all my equipment; TV 162 Watts; Fridge 228, etc. but none of these devices are on all day and night. I finally mapped out all the outlets and lights and was about to begin the survey. Other than the flickering lights, one big clue was that my TL's lcd was displaying a spike in voltage DOWN to 95 or so, the relay would click, etc.
I decided to begin my survey and use my second TL to help me see which circuit was faulty. When I looked at the LCD, it was blank. I pushed the ON button and all the devices plugged in went OFF and then I saw smoke coming out of the back. I quickly unplugged everything and then watched my meter. When this UPS was plugged in, there was about 1000W used per hour; I monitored it for 10 hours; 400W were used (total).
So... not only was it a fire hazard, but it sucked up 900W or so an hour.
Correcting Spectralink Errors
Below are instructions on performing a “soft test” which will correct any internal error 8 and 4444-444C messages on your Spectralink phone. To aid you in educating your staff you may view the following Word document showing the step-by-step instructions. Please feel free to print and post this document where the Spectralink phones are kept on your floor. Soft Test Instructions
Power off the phone.
Press and HOLD the volume key (VOL) and the power key at the same time (the phone will chirp and display the serial number.)
Now…release ONLY the power key (phone will vibrate and make a long tone.)
Now release the volume key (the display will have a lot of black boxes and ZZZZ’s – you will also see the bottom of the display showing “msg”, “bat”, etc.)
Count to three and then power off the phone.
This “soft test” is to correct only certain internal error messages. When the phone is experiencing a correctable error the display will read “internal error 8” or “internal error 4444-444C”. For all other internal errors the phone will need to be taken to Teleservices, NE-165 to be replaced.
The CLS problem. Im thinking that at least you made a visual inspection of the power suply and the capacitors around it. Then if everything normal in the area then the microdisplay (inside the ligth engine) can be damaged. (when the tv is working normally the microdisplay sends a pulse to turn on ballast and lamp finally.
The sweetkyman: when the fan is bad th tv shuts down imm. (if you unplug the fan when the tv is working normal the computer detects the overcurrent system works and shuts down the set) when a fan is all dirty and tons of dust on it the tv tends to work but after some hours the tv shuts down.