Barco Galaxy NH-12, Service Manual

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3. General information
Abbreviation
Stands for...
LFR lamp fl icker reduction
LPS
lamp power supply
LVDS low voltage differential signaling
PB power box
PC personal computer
PMP pixel map processor
QXGA quad extended graphics array
SDI serial digital interface
SPG start pulse generator
UXGA
ultra extended graphics array
3.3 General instructions
Overview
• Connector instructions
• Wires and cable ties
• EMC shielding clamps
3.3.1 Connector instructions
C
AUTION
:
Always respect the ES (electrostatic sensitivity) instructions.
Do not use any kind of tools when unplugging a connector.
C
AUTION
:
Never pull the wires to unplug a connector. Always grip the connector and pull to unplug (after
unlocking if applicable).
Overview of the connectors
Several types of connectors are used in the projector (ordered by size):
• SH: smallest one, mainly used to connect signals
• PH: mainly used to connect low power
• VH: used to connect higher power
• ATX: biggest connector
• board to board connectors
The number mentioned next to the connector type indicates the amount of wires on the connector.
Board to board connectors
It is important to disconnect and connect this type of connectors in a straight way.
When plugging in a board to board connector, make sure it is completely in!
3.3.2 Wires and cable ties
C
AUTION
:
If wires are not properly fi xed to each other, to the chassis and/or to other components in the same
way as it was done in production, damage can occur!
Wires
Due to the amount of cables, some of the procedures described below can become quite complicated. Make sure to take into
account the following directions.
12 R59770141 GALAXY NH-12 20/02/2008