Circuit Descriptions, Abbreviation List, and IC Data Sheets
9.
9.
Circuit Descriptions, Abbreviation List, and IC Data Sheets
Index of this chapter:
9.1 Introduction
9.3 Display Supply
9.4 On-Board Platform Supply
9.5 On-board DC/DC Converters
9.6 Front-End
9.7 PNX85xx
9.8 Back-end
9.9 Ambient Light
9.10 Abbreviation List
9.11 IC Data Sheets
Notes:
•
Only
new
circuits (circuits that are not published recently)
are described.
•
Figures can deviate slightly from the actual situation, due
to different set executions.
•
For a good understanding of the following circuit
descriptions, please use the wiring, block (chapter 6) and
circuit diagrams (chapter 7). Where necessary, you will find
a separate drawing for clarification.
9.1
Introduction
This chassis (member of the “TV520“ platform) is the
successor of the BJx.x and FJx.x chassis (members of the
“Jaguar” platform).
The platform is built around the PNX85xx “System on Chip”
(SoC), which handles the video and audio processing. The
SoC integrates the functionality of ICs that were previously
used in the Jaguar platform: PNX2015 (AVIP/COLUMBUS),
PNX3000 (MPIF), TDA9975 (HDMI receiver), T6TE0TBG
(SPIDER), and PNX8550 (VIPER).
Remaining additional key components in this chassis are:
•
PNX5050.
•
PACIFIC 3 (T6TF4HFG).
9.1.1
Features
The main features for this chassis are:
•
1080p resolution @ 50 Hz (in some sets).
•
Perfect Pixel HD Engine as the successor of Pixel Plus.
With this technology, each pixel of the incoming picture is
enhanced to better match the surrounding pixels, resulting
in a more natural picture. Artifacts and noise in all sources
from multimedia to standard TV to highly-compressed
high-definition (HD) are detected and reduced. This results
in a clean and razor sharp image.
•
The introduction of LED AmbiLight.
•
ClearLCD, a technology that uses scanning and backlight
dimming technology to reduce the motion blur on an LCD
screen, caused by the slow response time and the “sample
and hold” characteristic of LCD.
•
Dynamic Frame Insertion (DFI) (in some sets) resulting in
a 1080p resolution @ 100 Hz, thus eliminating the film
flicker caused by the frame rate of 24 frames per second of
cinematic film.
•
Digital Natural Motion (DNM) to compensate the judder
(perceived when watching a moving object on the screen),
caused as side-effect during frame insertion (DFI) as
described above.