atari email archive

a collection of messages sent at Atari from 1983 to 1992.

SANYO DISPLAYS FOR ENG PROTO-GAMES

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Several people have asked me about the problems they are having getting the
correct brightness levels on the Sanyo displays. After looking at several 
different displays, I have concluded that the samples we are receiving from
MFG are "RAW" units. As in they have not had the Black Level adjusted, and 
they have not been white tracked per Atari specifications. I recommend that 
on all future MTO's the requester specifies on the MTO that the displays 
need to be set-up prior to delivery to Engineering. It is important that the
displays used in game development represent the actual displays that will be 
used in the product build so that the correct RGB signal levels can be set
via the bias resistors on the video output circuits. It is very hard to set 
the Black Level on the displays once they are mounted in the cabinet, so the 
best I have been able to do on the field test, and show games is bump up the 
low end of the RGB outputs of the displays to compensate for the loss in the 
brightness range. Your cooperation in this matter is appreciated.

                                                    RLO
Message 1 of 1

Apr 05, 1989