How to change the channel my Sony Trinitron TV turns on to?

Is the tv signal originated from cable tv box? Or a antenna?

To reset the software, unplug the mains during 30 secs and the plug it back and turn it on. This could solve the problem.

When TV channels are moved from one frequency to another frequency that was previously used by a different channel (sorry, but there's no simple way of saying that !) as has happened recently in th UK, some digital TVs and digiboxes struggle to sort the channel list out properly and channels can go missing as you describe.

If your equipment has the option to delete all currently stored channels (normally in the tuning menu options) then do so and then do a full re-tune.
Sometimes, this solves the problem as the equipment is no longer aware of any previous use of a frequency and just loads every channel it finds.

If this doesnt work, or your equipment doesnt have the option, then there is normally the option soemwhere in the menus to retore the item to "factory defaults/configuration". This will clear all previously stored channels and after a full re-tune your missing chanels should be there. However, any other configuration changes you previously made, e.g picture size, output type (RGB/NSCT/etc), etc will be lost and you'll need to set these again.

NB. some regions of the country have lost some channels temporarily now until after the switch over programme completes at the end of 2012. If you visit the Freeview website, this will tell you if your area is affected.

Make sure the TEXT and CAPTION options are turned off.

I am not sure about the Sonny's, but on my Toshiba a black box appears when I inadvertently leave one of the close captioning (CC) on for text or captions on (such as CC1, CC2, etc.).

my sony trinitron is blinking six blinks and I cannot turn it on, please help

Hello,
There are 3 reasons for 4 blinls
1.unit went to stand by mode because of h-pulse
2.Vertical defflection pulse stopped
3. power line is shhorted or power supply is stoped.

Solution:
1. check 13vdc on A board of powersupply stage
2. Check IC561 on A-board.

Good Luck
Dals123

If there is no audio as well then this suggest that the digital box is at fault. The fact that you can watch DVD's proves this fact. Unplug the digital box for 2 minutes and then re-try. Good luck.

You may have a bad H board which is the board that has the voulme/channel buttons on it. You may want to have a Sony asc give you an estimate to repair. Good Luck

Check your cc mode setting and turn it off(after noting the setting,)if this cures the problem dont use the setting noted above