Mitsubishi WD-52627 Training Manual page 15

Because some people can experience a "rainbow ef-
fect" due to differences in their persistence of vision, a
10,800 RPM Color Wheel is now used in the 2005-
2006 DLP product line. This represents a 50% speed
increase over last years 7,200 RPM wheel.
Service Technologies
The 2005-2006 PTV product line carries several tech-
nologies that affect service. They are:
• PWBs are constructed with Lead Free Solder.
• Mirror area is easier to access on 52" LCD &
all DLP to simplify cleaning.
• Elimination of ribbon cables in the Electrical
Chassis improves reliability.
Figure 1-11: One Sided Dynamic Aperture
1-9
• The Interface PWB between the Chassis and
Light Engine is convenient for troubleshooting.
• Access to the Electrical Chassis is improved for
troubleshooting and PWB replacement.
• LED diagnostics have been expanded to
simplify troubleshooting.
These topics will be discussed further in this manual.
2005-2006 PTV Product Line
Specifications for the 2005-2006 PTV product line are
given starting on the following page.