ZX Time #08 30 апреля 2002

Железо

zhelezyaki - shemka: Video Spectrum Binding to the black level.

Zhelezyaki


                     Alexander Pehimenko


    I want to give to light a small but necessary shemku: 
binding to the video black level. By itself, the scheme is not 
new. I pulled her with a scheme Green Scorpion, and tried to 
Leningrad. On some computers, this is not binding. In these 
black square looks like a high-brightness white and sometimes 
with the alternation of colors can occur even failed 
synchronization. Also, this scheme is necessary for the regime

Hardware multikolora (about him I wrote in
ZXTime # 4), otherwise the colors will be incorrect. Those who 
decided to make this revision - this scheme should be required. 
The scheme represents the two additional transistors QD 315 and 
m / TM2 scheme. In it all clear from the figure. The scheme is 
given for Leningrad, but for other computers

it is similar. Mounted it all over one of the m / schemes or in 
free site fee.



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    Editor's Note: Plans as always - in
annex to the newspaper,. pcx-format, which you can view the 
program Brujeria.



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