7. Electronic parts and servicing procedures
7.2.1
Description of the power box
Description
Image 7-18
Power box: right side view
Image 7-19
Power box: left-rear view
This
universal 12V power box
is a non serviceable metal shielded unit. In the
fi
eld, it is always replaced by a new box in case of
failure.
The software of this power box is stored in a CPLD inside this box. On start up of the projector, the CPU checks the software version
of the power box and upgrades it automatically if an old version is detected
Since this power box is a universal unit, not all of the connectors are used in this projector.
The following voltages are generated:
•
++12V standby voltage
•
+12V for active projector state
•
380VM for the lamp
R59770141 GALAXY NH-12 20/02/2008
45
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...