Drop channels Receive limited channels.ample only get channels 5, 7,11, 13 and a few higher numbers.

try changing the channel number from auto to a channel number 2 or 3 higher than the lowest channel number.'
do this by logging into the d-link dsl 2640

do you have cordless phones running on 2.4 Ghz ?
try changing the channel number setting on the router from auto to use at least 2 channels higher than auto was using.

One of the most common causes of this is wifi channel interference. Most routers come preset to "auto" which allows them to choose whatever channel they wish to transmit on. And most use the same defaults. If you live in a relatively congested area where there are many wireless networks around, having all of them on auto can start a cascading shifting of channels to try to avoid interference. One or two shifts most devices can handle, but when it cascades, most devices just disconnect. Best thing to do is to go into the router and manually select a channel to use. Try it for a while. If you have no more problems, ok. If not, change to a different one and try again.

First to check your cable resepction then replace your tv tuner same number your tv channel mistunes

www.retrevo.com/
Try this link. Gopakumar Gopalan Google

Try turning down the RF gain. It is the 2nd knob to the left of the channel selector. This will limit skip stations and receive only local higher signal stations to come through. Do not turn it too low or you won't hear much of anything. Hope it helps.
Tom

CCD failed, contact fuji, they got product recall for some camera models with faulty CCD. 
Fujifilm Service Advisory:
Fujifilm camera - CCD sensor
If your Fujifilm FinePix digital camera serial number is on the list and experiences the symptoms described above and have no other additional damage/malfunction, Fuji Photo Film, Inc. will repair your camera at no charge, even if your standard one-year limited warranty has expired. If your Fujifilm digital camera is beyond the standard one year, limited warranty period, you will receive a written estimate for any additional damages or malfunctions not listed in this Service Advisory.
Finepix A303, F410 & F700 - Serial numbers
- FinePix A303 - 3JA4**** - 3JA5****
- FinePix F410 - 32A1**** - 32A6**** - 32A7**** - 32A9****
- FinePix F700 - 33A0**** - 34A1****
Fuji Photo Film - Camera faulty
If your camera got the symptoms please package the camera carefully using ample padded material to prevent damage in transit. Include your name, address and phone number with the shipment as well as a general description of the problem. Keep a record of the camera's serial number and shipment tracking number. Ship your camera to the Fuji Service Center.

CCD failed, contact fuji, they got product recall for some camera models with faulty CCD.
Fujifilm Service Advisory:
Fujifilm camera - CCD sensor
If your Fujifilm FinePix digital camera serial number is on the list and experiences the symptoms described above and have no other additional damage/malfunction, Fuji Photo Film, Inc. will repair your camera at no charge, even if your standard one-year limited warranty has expired. If your Fujifilm digital camera is beyond the standard one year, limited warranty period, you will receive a written estimate for any additional damages or malfunctions not listed in this Service Advisory.
Finepix A303, F410 & F700 - Serial numbers
- FinePix A303 - 3JA4**** - 3JA5****
- FinePix F410 - 32A1**** - 32A6**** - 32A7**** - 32A9****
- FinePix F700 - 33A0**** - 34A1****
Fuji Photo Film - Camera faulty
If your camera got the symptoms please package the camera carefully using ample padded material to prevent damage in transit. Include your name, address and phone number with the shipment as well as a general description of the problem. Keep a record of the camera's serial number and shipment tracking number. Ship your camera to the Fuji Service Center.

Most tv's have an Antenna mode and a cable mode. If you have cable tv service, the cable mode must be selected in order to receive channels higher than 23. Then you must auto program the channels thru the menu screen on the tv to receive the channels above 23. If you have a house antenna or rabbit ears, its hit or miss on receiving all VHF and UHV channels.

Depending on the chassis, it could be the OBT has a bad componet or a parts bad in it or if theres a standup tuner it has to be replaced. You should take the set into a repair place for an estimate good Luck