Mitsubishi Mr.Slim WD-52627, Руководство по обучению

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5-12
Digital Video Signal Path
Figure 5-12 illustrates the Basic Digital Video Signal
Path. The Digital Signal output from the Main Tuner is
an I.F. signal. The signal from the Main Tuner is di-
rected to PWB-DEMOD1.
The Demodulated Output (MPEG) signals are direct
back to PWB-DM and via the POD circuitry to the
MPEG Decoder. The output of the MPEG Decoder is
processed by Doubler and PIP/POP circuitry and is di-
rected to the PWB-FORMAT.
Note that Prelude and A/D Converter circuitry added
in the DLP chassis PWB-FORMAT. These used for
signal conversion to 1080p and to process signals from
a PC. In V29 through V30+ chassis PC connection is
though one of the HDMI inputs on the rear of the TV.
In the V31 chassis a conventional VGA input is added
on the PWB-FORMAT.
Note the in the V30+ and V31 chassis the PWB-
DEMOD2 is added to process HD signals from the Sub
Tuner. This allows the Sub Tuner HD signals to be se-
lected as the PIP/POP sub picture signal source.
As a reference for troubleshooting, Figures 5-13 through
5-15 are more detailed Video Signal Path diagrams:
Figure 5-13: Analog Video Signal Path
Figure 5-14: Digital Video Signal Path
Figure 5-15: Record Signal Path
Shaded Areas differ from the V28 circuity.
Figure 5-12: Basic Digital Video Signal Path