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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.
Summary of Contents for F70 Series
Page 1: ...ENABLING BRIGHT OUTCOMES Service manual F70...
Page 8: ...723 0018 02 F70 8...
Page 11: ...11 723 0018 02 F70 General safety 2...
Page 14: ...723 0018 02 F70 14 General safety...
Page 21: ...21 723 0018 02 F70 DLP System General Description 4...
Page 26: ...723 0018 02 F70 26 DLP System General Description...
Page 36: ...723 0018 02 F70 36 GP7 system functional description...
Page 40: ...723 0018 02 F70 40 GP7 periodic maintenance...
Page 44: ...723 0018 02 F70 44 OSD display menu...
Page 53: ...723 0018 02 F70 53 Long Lifetime setting 0m asl Image 8 7 Thermal management system...
Page 54: ...723 0018 02 F70 54 Thermal management system...
Page 58: ...723 0018 02 F70 58 Lenses and adjustment...
Page 59: ...59 723 0018 02 F70 Optical adjustments 10...
Page 65: ...723 0018 02 F70 65 Image 11 2 Picture distortion Colorwheels...
Page 66: ...723 0018 02 F70 66 Colorwheels...
Page 67: ...67 723 0018 02 F70 Phosphor wheel 12...
Page 70: ...723 0018 02 F70 70 Phosphor wheel...
Page 71: ...71 723 0018 02 F70 Laser pulsing adjustment 13...
Page 74: ...723 0018 02 F70 74 Laser pulsing adjustment...
Page 79: ...79 Image 15 1 723 0018 02 F70 Power Supply Unit PSU 15...
Page 83: ...83 723 0018 02 F70 Troubleshooting 16...
Page 102: ...723 0018 02 F70 102 Troubleshooting...
Page 104: ...723 0018 02 F70 104 Image 17 1 Assembly hierarchy...
Page 113: ...723 0018 02 F70 113 Image 17 23 Assembly hierarchy...
Page 114: ...723 0018 02 F70 114 Assembly hierarchy...
Page 115: ...115 723 0018 02 F70 Scheduled operations 18...
Page 164: ...723 0018 02 F70 164 Image 22 14 Lens shift assembly...
Page 165: ...165 723 0018 02 F70 Prism Housing 23...
Page 167: ...723 0018 02 F70 167 Image 23 5 Prism Housing...