Brunswick Sync - WIDESCREEN OVERHEAD MONITOR ISSUES; Circuit Description

Troubleshooting 13
WIDESCREEN OVERHEAD MONITOR ISSUES
Circuit Description:
Two types of signals may be sent to the Widescreen overhead monitors, Serial control and video. The
video can be sub-divided into an additional two types; scorer video and TV Video (Global Video).
The scorer video is handled by the Display Controller located behind the left monitor of each lane pair.
The Display Controller then sends the scorer video to its monitors through HDMI cables.
The optional TV Video originates at one or more video source(s) typically located at the control desk.
The signal from each source is sent to a modulator located inside the TV Distribution center where
they are assigned a “ TV channel”. These channels are combined and sent to the tuners in the overhead
monitors through a coaxial cable. Refer to gure titled Overhead Video Cabling.
Switching the monitor on/off and between video inputs is handled through an RS232 serial cable
routed from the Display Controller to the serial connection located on the monitor. The signal is
“daisy chained” to the other monitor(s) that the Display Controller must control. Refer to gure titled
Overhead Control Cabling.
When troubleshooting video and monitor issues it is important to determine whether the problem is
exclusive to one monitor, associated with one Display Controller or if the problem is on more than one
lane pair. In addition it is equally important to determine if the problem is in the monitor itself or if it is
external. Swapping cable connections between monitors will typically identify where the problem lies.
(1)
TV DISTRIBUTION
CENTER
(OPTIONAL)
(2)
TV VIDEO
CABLE
(3)
CONTROL
DESK
(6)
WIDE SCREEN
TV-ONLY
OVERHEAD
MONITOR
(2)
TV
VIDEO CABLE
(9)
TO
ADDITIONAL
OVERHEADS
(5)
WIDE SCREEN
OVERHEAD
MONITORS
(5)
WIDE SCREEN
OVERHEAD
MONITORS
(2)
TV
VIDEO CABLE
(2)
TV
VIDEO CABLE
(9)
TO
ADDITIONAL
OVERHEADS
(4)
DISPLAY
CONTROLLER
(4)
DISPLAY
CONTROLLER
(11)
SCORESHEET
VIDEO
LANE 2
(10)
SCORESHEET
VIDEO
LANE 1
(12)
SCORESHEET
VIDEO
LANE 3
(13)
SCORESHEET
VIDEO
LANE 4
(7)
SPLITTER
(8)
TAP
Overhead Video Cabling.
(1) TV DISTRIBUTION CENTER (2) TV VIDEO CABLES (3) CONTROL DESK
(4) DISPLAY CONTROLLER (5) WIDE SCREEN OVERHEAD (6) WIDE SCREEN TV-ONLY
MONITORS OVERHEAD MONITORS
(7) SPLITTER (8) TAP (9) TO ADDITIONAL OVERHEADS
(10) SCORESHEET VIDEO LANE 1 (11) SCORESHEET VIDEO LANE 2 (12) SCORESHEET VIDEO LANE 3
(13) SCORESHEET VIDEO LANE 4