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723
–
0018 /02
F70
28
5.1 Electronic platform
About
There are two main electronic PCB
’
s in the unit; PCB Mainboard and PCB Thermal Hub Board.
In addition there is a power supply and a keyboard/display PCB, and some peripheral PCB
’
s, such as USB
interface, IR receiver, thermal sensors.
Calibrations and settings for the unit are saved in a SD card on the Mainboard. When replacing the
mainboard, this SD card must be transferred to the new mainboard, in order to maintain the settings for the
unit. Nevertheless, some calibrations has to be performed again, such as the Constant Light Output,
(especially in multi projector setup), and Lens Shift Motors.
It is crucial that all SD card data is transferred to the replacement PCB in the event of repair. Failure
to do this will compromise system dynamic data and lead to incorrect LFM notifications as well as
possible network control conflicts.
5.2 I/O
’
s and processing tasks:
I/O
’
s and processing tasks:
In the matrix below is listed the different PCB
’
s, and their main tasks. In order to localize a malfunction in the
projector, it is an advantage to know which function that is controlled by which PCB.
Together with the block diagram and the troubleshooting matrix, this can be a helpful tool in diagnostic.
See also the
“
Block diagram GP7 Platform
”
for an overview of the system.
PCB
Tasks
Thermal Hub board
Typical tasks as fans, cooling pumps and temperature
sensors are connected here.
DMD Peltier elements, Front and Rear.
Thermal monitoring
Lens shift
Zoom and focus motors
Lens position sensors.
CLO sensor
IR front sensor
Optical actuator
Air filter sensor
Pixel Shift
Main Board
Typical tasks, Main signal input, Scaling and control
board.
Process all I/O from the Back Panel, keypad, LCD
screen.
Peripheral PCB, i.e. IR Sensors, USB input
Keyboard & Display
Phosphor wheels
Color wheels
Safety Switches
Air inlet temp. sensor
Air out temp. sensor
Communication with Thermal Hub Board and PSU
unit
Communication with the Laser Driver PCB
’
s.
Laser Driver
Powered by 390V from PSU.
Provide 36V pr cable to the Laser Clusters
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...