BOXLIGHT PRO80S3 User Manual page 2

1. Introduction
The Boxlight PRO80S3 Projector is a three-chip DLP projector with a native resolution of 1280x720 pixels (16:9 aspect
ratio). The projector accepts 720p video through a DVI-D connector on the rear panel.
1.1 Controllers
The projector is controlled by a pair of MTV312M64 microcomputers. The first is the main controller and is responsible for
lamp ballast and formatter initialization. It continuously monitors the state of the formatters, the ballast and the video input
primarily to prevent the lamp from extinguishing due to loss of video or unintentional resetting of the formatters due to
power fluctuations. Communication with the controller is through an RS-232 interface using a simple command/parameter
protocol. The second processor manages the IR remote control functions: lens shift, focus and zoom. It has no external
communications interface except the IR receiver.
1.2 Rear Panel Connectors, Switches and Displays
There are four I/O connectors, two switches and nine LEDs on the rear panel.
Connectors
Connector/Switch/LED
DVI-D
DB-9F
RJ-45
Switch
2-position Rocker Switch
3-position Rocker Switch
LEDs
RED/GREEN LED
8 GREEN LEDs
Color
STATUS LED
LAMP DOOR
FAN
LAMP
VIDEO SIGNAL
FORMATTER
BALLAST TEMP
READY
SHUTTER
NOTE: There may be as much as a 2 second delay between an event that will cause a change in the STATUS LEDs, e.g.,
SHUTTER OPEN, and the actual display update.
BOXLIGHT PRO80S3 Projector Preliminary User's Manual
Rear Panel Connectors, Switches and Displays
Purpose
720p Video Input. There is no scaler on board.
Serial Communications with main µC – 9600,8,N,1
Film Projector Lockout Connector
NIC
Located just about the power connector – System Power ON/OFF
Soft Power ON/OFF and Shutter Control
Power State – located to the left of the Power/Shutter Control Switch
Projector Status – Located to the left of the DVI Connector
Power Sequence State
RED
GREEN
YELLOW
(GREEN + RED)
Status LED Operation
When ON Continuously
Lamp Door Interlock OK
Lamp Thermal Switch Closed
Fans OK
Lamp Struck and Operating
Video Signal Detected
Formatters Initialized and Operating
Ballast Temperature OK
90 Second Lamp Cool-down Timer Expired, READY for
Power-up or Re-strike
Shutter OPEN
NORMAL Projection Mode
Multicolor LED
State
Standby
Power On or Power-up Sequence
IF some STATUS LEDs ON – 5 minute power-down
ELSE power-off sequence
Lamp Door Open or
Lamp Thermal Switch Open - Shutdown
Fan Failure – Shutdown
Lamp Extinguished
Lamp Life time over system limited (1470 hours)
No Video
Formatter Failure (usually a communication failure) -
Shutdown
Ballast Temperature High – Shutdown
[READY OFF] 90 Second Lamp Cool-down Cycle in
Progress
Shutter CLOSED
CURTAIN mode
When Flashing (or OFF)
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