CP297s

Uploaded to Github the components location on the board.

Note to myself:

If I ever going to build an Ace, I will need to add a diode between Z26A pin 3 and Z80 /WAIT line 

I have found one issue with the original ZX97 lite schematic: The /WAIT line is connected to an ordinary output pin rather than an Open Collector.

A peripheral device  (like my keyboard adapter ) would fail to bring down the /WAIT line to hold the Z80.

I have fixed that on my design with a diode and a pull up resistor

- Added a resistor network for pulling up keyboard input buffer pins (U16). I believe that will fix the erratic behavior when using buffer chips with other technology than LS.

Some updates:

• Added a notch to the PCB outline;
• Moved the battery socket to reduce mechanic interference with DIN monitor connector;
• Added a switch to allow the use of RAM mapped ROM;
• Added support for external Kolour: Signals to DIN Monitor connector changed to +5V, GND, RAW_VIDEO and C_SYNC;