Jersey Jack Pinball The Hobbit, Руководство по эксплуатации

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Game Service & Troubleshooting E-9
In The Hobbit, three RGB LED Controller boards (circled in blue in figure E9) are used to control the game's feature lighting. 4VDC is run through these boards
to provide power to all of the RGB LED boards around the playfield (above and below). This 4VDC is supplied by the 7.5/4VDC Power Supply, located inside the
cabinet PCB chassis (item 12, pg C-14 of this manual). Each RGB LED Controller board can control up to 24 RGB LEDs, 8 through each of 3 driver connectors
( J101-J103 ). Up to 8 individually addressable (0 through 7) RGB LED Controller boards can be used in a game. Controller board addresses are set using the
3-bank dip switch labeled SW100 . In The Hobbit, RGB LED Controller board A is set to address 0 ( SW100 -> 000), board B is set to address 1 ( SW100 -> 001) and
board C is set to address 2 (
SW100
-> 010).
Communication/control signals are distributed, through CAT5 ethernet cables, between the BAG board ( J103 ) and the three RGB LED Controller boards ( J104 ,
J105 ). Signals from the BAG board are daisy-chained between the three RGB LED Controller boards, so any unplugged or damaged ethernet cable will interrupt
RGB LED control to any controller board(s) downstream.
RGB LEDs are essentially 3 LEDs in one package: one red, one green and one blue. As such, four wires are run to each RGB LED in the game. One wire supplies
power to the LED package, the other three are individual intensity control/return lines - one for each LED color: red, green, blue . The quartets of wires are bun-
dled together into cable assemblies (pg C-72). The wires are color coded to quickly identify which pins each RGB LED connects to at the 50-pin RGB LED Control-
ler board connector. A base color is used for each set of four wires. The power wire for each quartet is the base color, solid (no stripe); the control/return wire
for each LED color is the base wire color with a stripe in that color. For example, if the base color is YEL, the power wire will be solid YEL. The wires controlling
red, green and blue intensities will be YEL with a RED stripe, YEL with a GRN stripe and YEL with a BLU stripe, respectively. If the stripe color would match the
wire's base color, a GRY stripe is used for that control wire instead.
The first RGB LED in each cable has a wire base color of BLK, the second has a base color of BRN, the third, a base color of RED and so on, through the resistor
color code (BLK, BRN, RED, ORN, YEL, GRN, BLU, VIO). Color code references for feature lighting wiring are included in feature lighting PF diagrams & tables (pgs
C-68 to C-73), RGB LED Controller board schematics (pg D-35 or D-46) and in RGB LED Controller board connector pin-out listings (pgs D-36, D-39 & D-42 or D-47,
D-50 & D-53).
To set the radiant color for an RGB LED, we manipulate the intensity of each LED component, red, green, blue . For example, equal intensities of red and blue
(along with no intensity of green) will result in a particular intensity of violet. Equal intensities of all three colors will create a certain intensity of cool white. If
the LEDs are run at maximum intensity, they will produce very bright lighting effects - but both the driver IC and the LED itself will be working quite strenuously.
In this case, the driver/LED combination will draw a lot of current and create a lot of heat (both undesirable). If the LEDs are run at a low intensity, they’ll pro-
duce very dim lighting effects, but the result will be much less taxing on the driver IC and RGB LED package. We try to run the RGB LEDs somewhere just above
the middle of their operating range in most situations. However, the overall feature lighting brightness in the game can be adjusted in the System Settings menu
(see pg B-23 of this manual).