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7. Electronic parts and servicing procedures
DC= DC converters
+12V
Image 7-142
Preformatter: power voltages
LED diagnostics
1
2 3 4
5
6
7
8
9
Image 7-143
Preformatter: diagnostic LEDs
number
LED ID
color
description
1
D523
red
Cyclone not con
fi
gured
2
D522
green
Cyclone running
3
D521
green
POWER good from PMP
4
D520
green
reset TI system
5
D12
red
Xilinx FPGA not con
fi
gured
6
D300
green
POWER good IN: all voltages are good, con
fi
guration of Cyclone can start
7
D309
green
POWER good OUT: all voltages are good, con
fi
guration of Cyclone is
fi
nished
green
POWER good is high, power within speci
fi
cations
yellow
POWER good is low, power within speci
fi
cations
8
D1
red
CPLD is not able to con
fi
gure the main Xilinx FPGA
green
Normal con
fi
guration of Xilinx FPGA was succesful
yellow
Boot con
fi
guration of Xilinx FPGA was succesful
9
D2
red
couldn’t load Normal nor Boot con
fi
guration of Xilinx FPGA
7.13.3 Removing the preformatter
Necessary tools
Torx screwdriver T10
How to remove the preformatter?
1. Remove the covers (see concerning chapters):
R59770141 GALAXY NH-12 20/02/2008
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Summary of Contents for Galaxy NH-12
Page 1: ...Galaxy NH 12 Service manual R9040400 R59770141 00 20 02 2008...
Page 4: ......
Page 12: ...1 Safety guidelines 8 R59770141 GALAXY NH 12 20 02 2008...
Page 42: ...6 Projector layout 38 R59770141 GALAXY NH 12 20 02 2008...
Page 142: ...8 Optical parts and servicing procedures 138 R59770141 GALAXY NH 12 20 02 2008...