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7. Electronic parts and servicing procedures
Schematic overview
48bit @
135MHz
DATA:
48bit @ max 135MHz
VIDEO:
8bit @ 27MHz
LVDS
2x270Mhz
LVDS
4x135Mhz
LVDS
2x270Mhz
PIP
Stratix2
WARP
Stratix2
PROCESSOR
CYCLONE
Inputs
1 (J101-102)
2 (J201-202)
3 (J301-302)
4 (J401-402)
DESKTOP (SBC)
RAM
OSD + ABplane
RAM
FRAME BUFFER
DDR2
FRAME BUFFER
DDR2
FRAME BUFFER
RAM
FRAME BUFFER
DDR2
FRAME DELAY
RAM
RAM
RAM
Desktop (J105)
Output
(J823-825)
PMP
Output Layer
(J501-J502)
not configured
not configured
not configured
Image 7-121
PMP: block diagram
Start sequence
When the projector is in standby, the Cyclone (I30) and the processor are powered. During the con
fi
guration of the Cyclone, a red
LED is on. It turns off when the con
fi
guration is loaded.
When going from standby state to active state, the rest of the PMP is powered and both FPGA’s (PIP and WARP) are getting
con
fi
gured. A red LED is indicating this stage. After the con
fi
guration is loaded, both red LEDs are turned off.
7.11.2 Diagnostics of the PMP
LED diagnostics
1
3
2
Image 7-122
PMP: diagnostic LEDs (rear side)
4
9 10
5
6
8 7
Image 7-123
PMP: diagnostic LEDs (front side)
number
LED ID
color
description
1
D1
red
PIP not con
fi
gured
2
D4
red
WARP not con
fi
gured
3
D9
red
CYCLONE not con
fi
gured
94
R59770141 GALAXY NH-12 20/02/2008
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...