1. Enable VGA Mode. See if the TV will display when you boot using "Enable VGA mode" from the Windows Advanced Options menu. This will boot Windows into normal mode using current driver for video (in a reduced VGA mode). If Windows comes up, then you need to "set" the display properties to values the TV monitor supports (or guess what - no display!).
Three display properties to be concerned with are "refresh rate", "color depth", and "resolution". Not sure what a TV monitor supports. Perhaps others could opine... Or you could research on internet....
Maybe start with refresh rate of "60 Hz", color depth of "16", and resolution of "800 x 600". Be especially careful with the refresh rate (I think that's the only thing that would damage the hardware). If successful, you could crank up the color depth and resolution changing one item between reboots until the system fails to display (then back off the last parameter set).
2. Windows Advanced Options Menu. Use the F8 function key during system startup to access the menu. Tap the F8 key once or twice per second as you startup the computer (or immediately after POST completes and screen flashes black prior to displaying Windows XP logo with its processing bar display).
When the menu comes up, use the up/down arrow keys to select the line item you want.
3. Safe Mode. If you're in a hurry, you could "reset" display properties to conservative values TV monitor might support from Safe Mode and reboot.
4. But Then... Since I've never connected a TV monitor to a laptop, I don't know what video signals and/or display properties it needs.
How does the laptop interface to the TV? Which laptop port do you use, what type of cable, and where did you get it?
5. Broken Screen. Broken how? Physically? Or just doesn't display anything?
