Barco F70 Series, Руководство по обслуживанию

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723 – 0018 /02 F70 34
Psu
Thermal hub board
Main board
Laser driver
NTC [TM lasers X6pcs.]
Laser
PUMP liquid cooling
Fan Radiator
Bimetallic switch 1 [NC 90°C] optical path
Safety switch laser housing left
12V
12V
12V
PSU Enable / feedback Safety loop
Enable
(NOT IN use for F70/F90Captains safety / not required if pwm range will cover safety temperatures)
Enable Laser
[Hardware threshold 84°C°C]
Enable PSU
12V_Standby
Bimetallic switch [NC 90°C] DMD cloldplate
Switch 1 bottom cover
Switch 2 bottom cover
X12
X12
X5
X5
FPGA (DLP)
Dew point sensor
TEC main
Bimetallic switch 1 [NC 90°C] optical path
Image 5-6
5.7 Laser driver Principle and error codes
There are two identical laser driver PCB ’ s, defined as Board 1 and Board 0, where Board 0 is the lower board,
and Board 1 is the upper board.
Each board has four outputs, named 0 – 3, where output 0 – 2 are used in the F70 projector.
This drives the laser cluster, which consist of six laser banks. (3 + 3).
See chapter 5.7.1 for a block diagram for the laser and drivers.
For monitoring the status / condition of the laser driver module, there are NTC ’ s connected to each laser bank,
and on each driver output on the laser driver boards. The software will monitor the data from this NTC ’ s
continuously, and by an error, a failure message will occur, that defines the error.
The NTC ’ s on the Laser driver board are defines as “ heatsink ” in the error message string, and the NTC ’ s on
the laser banks is defined as “ bank ” in the error message string.
This means that error message can look like this:
#e20400 environment.laser.board1.bank0.error input …
Meaning that there are registered a temperature error in bank0 in the left Cluster
Other examples of error messages:
#e20400 environment.laser.board1.bank4.error input …
Meaning there is a temp error in the right Cluster #e20400 environment.laser.board1.bank1.error input …
Meaning that there is a temperature error in the lower laser driver board.
#e20400 environment.laser.board0.heatsink0.error input …
#e20400 environment.laser.board1.heatsink1.error input …
Meaning that there is a temp error in the upper laser driver board.
So; the clue in identifying source failure from those messages is to identify the board number, whether it is a
heatsink or bank mentioned, and which number they have.
See also the error code/failure matrix, and the block diagram for an overview of the system.
GP7 system functional description