Question about Sony FD Trinitron WEGA KV-21CL10 21" TV

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Tuning problem KV-21CL10

Cannot tune some channels looks like the low end of the band will tune ie 21 to around 30 higher than this and ot wont lock into the channel

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Try to setting your tv in menu! and you can see the menu has air cable tv mode then select the ADD or ERASE mode! you select all channels to ADD mode! or you can auto search the program!

Posted on Oct 07, 2007

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Why will my rca trflat not go past cannel 69


Hi there. Maybe your TV is not equipped for S channel reception.
Channel 73 falls into the S band; (21-69 is the normal UHF band.)
However in most cases, you must choose in wich band you scan your channels; (H, or S) I cannot imagine that this modern TV should not be equipped for S channels. Try manual channel search, where you'll probably find this possibility.

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Hi...juz wanna know wat wud be d possible solution for this tv problem. It lacks some channels and didnt respond correctly to the channel and its station. In other words besides that it lacks some channels...


HI. I guess you mix the expression channel with number. The "channel" is the division in "places" for each transmitter in the entire TV frequency spectrum. The "number" is just the preset number one gives to a certain channel stored in the TV. F.i. on can use number 50 to channel 4, which it the last channel in the lower VHF band.
When you to to "manual" tuning, and you select "4", then you may receive this channel, and assign it to any number you choose between 0 and the max presets possible. (mosly 99). After storing, you can choose another "channel ". It is also possible to choose in H or S. H are the regular B1, BIII, UHF channels. (rsp. 2-12, 21-69). The S band contains frequencies in between and above these bands.
Hope this explanation is of any help to you.

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I want to know the correct method on how to do a SWR test with the Galaxy 959.I have a 5 foot self adjustable firestik and have mounted it to a 4mm thick aluminum plate 30 cm square and will have it higher...


The best way is with an antenna analyzer but that is too expensive unless you do SWRs for a living. The meter on the radio should suffice for your needs.
Adjust the screw on the antenna until it is about 1/2 inch out.
Place the srf/swr switch to swr.
Go to channel 1 and note the SWR reading on the meter.
Go to channel 40 and do the same.
If channel 1 SWR is higher than channel 40, then screw the tuning screw out a turn or 2.
If channel 40 SWR is higher than channel 1, then screw the tuning screw in a turn or 2.
Repeat until the SWR on channel 1 is the same as 40. Channel 19 will be the lowest.

If you are not comfortable using the built in SWR meter, you will have to invest around $20 for a small SWR meter.

,,,,Don at NTCB, Inc.

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Random power out indications


Your antenna is not tuned for Lowest SWR. The higher the SWR the less power you put out.

It needs to be tuned to the center of the band. Channel 19 or 20. an SWR of 2 is not that good. You should not go over 1.5. Idealely it should be as low as possible. My antenna is tuned so that my SWR is 1.0 on every channel.

So on channel 1 your SWR is high, so it puts out less power. Some what better on channel 20. And your SWR is lowest on channel 40, thus it gets out better.

You want to get the SWR on channels 1 and 40 the same. You need to know whether or not the antenna is too long or short.

Tune to channel 1 take a reading. Take note of it. Then do the same one channel 40.

If the reading is higher on 40 then on 1 your antenna is too long and you need to make it shorter. if its higher on 1 then on 40, its too short so make it longer. When you get to the point when the SWR on 1 and 40 is about the same, you about as good as you are going to get with the meter in the radio, and you will see that on channel 20 your SWR will be very low, and it will be your best channel, and you will also see that you put out about the same wattage on all channels.

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1 Answer

How do i change the channel


Hello restart90,

1) Press BAND to select between XM DIRECT, XM1 And XM2 bands.
2) Press TUNE << or TUNE >> to select the next higher or lower channel. Press and hold to advance quickly.
3) Press BAND to select XM DIRECT. Enter the desired channel number by using the preset buttons 1-0, then press FUNC for 3 seconds to confirm the channel. Display will show "CH---" if channel is not available and the current channel will be retained.

Hope this helps.

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Sounds like the signal is probably too strong. The TV is not the problem.

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Tuning


Do you mean frequencies above channel 30? Otherwise perhaps the set cannot store more than 30 channels? More info required to be certain.

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Hello Skinno, Frist of all make sure that you are set to Antenna input and then connect your antenna to the TV this will pull in the VHF ansd UHF channels. Then perform the auto channel select. If this does not work perform a manual channel selection this should clear up your situation.

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