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1. The I502 NT6827-00002 is OSD IC. The OSD signals are worked by positive vertical pulse from I701 pin
32 that goes through R554 to I502 pin 10, and positive horizontal pulse from HFLB1 through R527 to I502
pin 5. CPU I701 pin 27, 28 (I
2. The OSD R. G. B signals and blanking signal are terminated at I502 pin 15, 14, 13, and 12 feed into I501
pin 1,2,3, and 4, then the OSD picture appears.
2
C bus) transfers information to I502 pin 7, 8.
A C9 01
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