Mitsubishi WD-52627 Training Manual page 52

PWB
ASSY-PWB-POWER1
ASSY-PWB-POWER2
ASSY-PWB-POWER2
for the HDD is located on the PWB-POWER for these
two chassis types.
Due to differences between the various chassis there
are three version of the PWB-POWER. These are listed
in Table 5-1.
Part Number
930B933001 All V28 models
WD-52627 / WD-52628 / WD-62627 /
934C159001
WD-62628 / WD-73727
WD-62727 / WD-62927 / WD-73827 /
934C159002
WD-73927
Table 5-1: PWB-POWER Part Numbers
Figure 5-2: Switch Mod Regulator
5-2
Models
Switch Mode Regulator
The Switch Mode Regulator (SMR) on the PWB-
POWER is the initial source for all DC Supplies except
the DC supply for the Ballast.
Figure 5-2 shows a simplified diagram of the Switch
Mode Regulator. This circuitry is conventional and is