Colecovision: Black & White image..

[Mauro72]

Hi friends again,

I have a PAL Coleco made in Hong Kong with black and white image. Tested with different wires, TVs, mod AV, 1889, VDP, always B/W.

Reading the coleco repair manual, is totally different the capacitors/resistors numbers and layout in Hong Kong board version, no way to trace and verify.

Any help? may be 7405?