Mitsubishi Mr.Slim WD-52627, Руководство по обучению

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5-6
Ballast DC Supply
This circuit is the same on all three
Power boards. A simplified version
of the circuit is shown in
Figure 5-4.
Fan DC Supplies and Control
The DC supplies for the fans are gen-
erated on the PWB-INTERFACE
board,. The circuitry is supplied by
the 18VF Standby Supply on the
PWB-POWER. The actual Fan
Supply circuitry on the PWB-IN-
TERFACE differs between LCD and
DLP models.
Figure 5-5 illustrates the circuitry in
LCD models and Figure 5-6 the cir-
cuitry in DLP models. Differences in
the circuitry are high lighted in
Fig-
ure 5-6. Note that Fan control sig-
nals are from the PWB-FMT, through
the FC connector on LCD models,
and through the FB connector in DLP
models.
Figure 5-4: Ballast DC Supply
Figure 5-5: V28 Fan Power Supplies