[Coco] Strangely patched CoCo 1

[Phill Harvey-Smith]

Hi all,

Just got a second CoCo 1 off ebay (26-3002) and it has a strange little 
patch board inside that my other does not (26-3004). The board is 
mounted upside down next to the SAM, and has about 5 or 6 wires going to 
various places on the CoCo board. Also one of the other chips, has had a 
couple of it's legs lifted and a disc cap & inductor soldered to them.

I know these where factory fitted because the waranty seal had not been 
broken.

I am in the UK, and this is a UK machine, the one thing that did cross 
my mind that perhaps the mainboard is a US/NTSC, and the patches have 
been made to convert the machine to run on the UK/PAL system.

Can anyone comfirm this and does anyone have a schematic for it ?

Cheers,

Phill.

-- 
Phill Harvey-Smith, Programmer, Hardware hacker, and general eccentric !

"You can twist perceptions, but reality won't budge" -- Rush.