TH-42PX500U Block Diagram
Figure 17
The DV board processes HDMI or DVI input signals. The HDMI IF receiver converts the
digital signal into parallel Y, U, V data and outputs it to the DG board for video selection
and processing.
GP8HD series plasma panels incorporate a Set Top Box that is designed to receive
NTSC and ATSC television broadcast. It is also used to receive QAM cable television
transmission. 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 CableCard.
This tuner allows the reception of Digital Cable television without the use of a set-top-
box.
The DT board contains an Optical Audio Out jack for use with a Dolby Digital decoder
and a multi-channel amplifier. When a digital channel is selected, the output from the
Digital Audio Out jack is Dolby Digital. The same jack outputs PCM (Pulse Code
Modulation) when any other signal source is selected.
An SD card slot is also included in the DT board. As the OpenCable service changes,
the firmware information located in the DT board may be upgraded by using an SD
card.
The DT board contains the host identification number and stores the identification
number of the CableCard.
18
Summary of Contents for TH-42PX50U
Page 40: ...SC board Waveform Figure 30 SU And SD Board Shift Registers Figure 31 35 ...
Page 43: ...SS Board Schematic Figure 33 SS Board Waveform Figure 34 38 ...
Page 66: ...Adjustment Volume Locations Figure 53 61 ...
Page 67: ...Test Point Locations Figure 54 62 ...
Page 71: ...Scan and Sustain Drive Waveform Figure 55 Scan and Sustain Drive Check points Figure 56 66 ...
