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8-28 Chapter 8, Jumper Settings and Switch Settings
8.11 VIDEO DISPLAY
CONTROLLER BOARDS
The COMPAQ video display controller boards
(assy. no. 000031, 000160, 000345, and 000525)
support only those video monitors that require
positive and vertical horizontal synchronization
pulses. Jumpers J3 and J5 must both be changed
at the same time or the video display controller
board will not function correctly.
Table 8-17. Jumper Settings for the
Video Display Controller Board
(assy. no. 000031, 000160 and 000345)
J3 J5 Configuration
2-3 2-3 Enable high-scan video on
external outputs
(Portable-default)
1-2 1-2 Disable high-scan video on
external outputs
Figure 8-15. Jumper Locations for the Video Display Controller Board (assy. no. 000031).