Panasonic PT-53TWD63, Technical Manual

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DT-Board (Digital Tuner)
The built in Set Top Box is de
Block Diagram
signed to receive NTSC and ATSC television
High Definition TV (HDTV) and
of many formats. The well-known
NTSC system is not included among the DTV formats. DTV is based on a new
set of standards developed by the Advanced Television Systems Committee
(ATSC). This new digital tuner also provides the NTSC video output for the main
picture. It is a hybrid tuner that processes NTSC and ATSC terrestrial broadcast
for reproduction on the TV screen.
The DT-Board also incorporates the OpenCable interface for use with a Cable
Card. This system allows the reception of Digital Cable television without the use
of a set-top-box.
roadcast and the 16VSB DVB cable television. The RF input of the DT-Board is
ntenna A and the type of reception desired is selected during the customer
etup operation of the PTV. If a cable line is used without a CableCard, the unit
roceeds to scan all available analog and digital channels. If a CableCard is
sed, the scanning process is bypassed since all cable related information is
lready programmed in the CableCard. If a terrestrial antenna is used, the unit
digital terrestrial broadcast. The unit
may also be instructed to scan all analog and digital broadcast channels.
broadcast. The ATSC signal reception includes
Standard Definition TV (SDTV). Each consists
Figure 28
The tuner of the DT-Board has the ability to tune in the 8VSB ATSC terrestrial TV
b
a
s
p
u
a
may be instructed to scan only analog or
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