Probably it is an old topics.
I tried to follow "Macintosh Repair & Upgrade Secrets" to convert video signal. It describes how to make the TTL video adapter as Video Upgrades. The converted signal is to connect to PC-style TTL monitor.
Since currently the PC-style TTL monitors are not available, I need to convert again to any form of video signal. Or convert totally different way. Please help me how to approach this or if anybody has any answer, please let me know.
The TTL video adapter is to use one 74LS14 and one capacitor of 0.01 mfd for reference.
I wish to use LCD panel for the video and it allows composite or RGB video signal and it works well for Apple II series and replica 1.