Product Details
Mini board features...
• Outputs S/LUM + CHROMA (at rear port of machine)
• Soft/Hard Switchable between PAL/NTSC
• Programmable/Configurable color palette
• Additional 64k RAM
• 80 column and new hi-res modes
• Vertical white line killer
• Suitable for 250407, 326298, 250425 & KU-14194HB motherboards
NOTE: For 250425 boards, the large RF shield that sits under the keyboard should be left out. For the other revisions, the cover of the RF shield enclosure must be removed.
This model comes with on-board oscillators for both NTSC and PAL clocks and can therefore bypass broken clock circuits. However, some specialty cartridges that use pin 6 of the cartridge port will not function unless the motherboard's clock circuit is used (i.e. SuperCPU, Wifi Cartridges, REU). For these cases, the PCB can be configured to use the motherboard clock for one of the video standards (i.e. the machine's native standard). Normal game cartridges will operate on either pcb or motherboard clocks.
Limitations - Please Read
Soft Reset + HiRes Modes / Color Registers
Please note that if you change color registers or enable hi-res modes, Kawari will not revert back to the default palette or lo-res modes with a soft reset (or even RUN/STOP restore). You must cold boot to restore default settings.
Cartridges that use DOT clock pin (pin 6)
A cartridge that uses the DOT clock signal on pin 6 may not work when the clock source is set to the on-board oscillator. The signal that reaches pin 6 of the cartridge port comes from the motherboard clock circuit and will likely be out of phase/sync with the clock generated by the on-board oscillator. In this case, you can configure your Kawari to use the motherboard's 'native' clock instead of the on-board oscillator. Note, however, that only the machine's 'native' video standard will work with such a cartridge. Since the vast majority of cartridges do not use pin 6, this should not be a problem for most users.
Turn off Pi1541 GraphIEC Feature
The Pi1541 has a feature that displays the IEC bus information to its display. This can interfere with tight timing requirements on some demo fast loaders (even on a genuine VIC-II chip) and can lead to corrupted data loaded into memory. If you are experiencing random crashes on demos like 'Uncensored', 'Edge of Disgrace' or similar demos, this is likely the cause. It is recommended you turn this feature off by adding 'GraphIEC = 0' to your options.txt.