Philips 24PHT4031/12, Руководство по обслуживанию

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Circuit Descriptions EN 32 TPN16.3E LA 7.
2016-Oct-28
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7. Circuit Descriptions
Index of this chapter:
7.1 Introduction
7.2 Power Supply
7.3 DC/DC Converters
7.4 Front-End Analogue and DVB-T, DVB-C; ISDB-T reception
7.5 Front-End DVB-S(2) reception
7.6 HDMI
7.7 Video and Audio Processing - NT72562TBG-BB
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 (see chapter
9. Block Diagrams ) and circuit diagrams (see chapter
10. Circuit Diagrams and PWB Layouts ).Where necessary,
you will find a separate drawing for clarification.
7.1 Introduction
The TPN16.3E LA is a new chassis launched in Europe in
2016. The whole range is covered by NT72453.
The major deltas versus its predecessor support DVB-TC;
DVB-TC/T2; DVB-S2 with also multi-media, Video out
function and bluetooth for 24PFS5231/12.
The TPN16.3E LA chassis comes with the following stylings:
•
series xxPxx4031
• series xxPxx4131
• series xxPxx5231
7.1.1 Implementation
Key components of this chassis are:
•
SCALER NT72562TBG-BB/D HS-LFBGA-510
• NAND FLASH MX30LF1G18AC-TI 1Gb TSOP-48
• AUDIO AD87588-LG48NAY 20W E-LQFP-48
• TUNER EU ST42CS-2-E
• TUNER EUROPE TDQS-A751F for S series
7.1.2 TPN16.3E LA Architecture Overview
For details about the chassis block diagrams refer
to
9. Block Diagrams . An overview architecture can be found in
Figure 9.1 .
7.1.3 SSB Cell Layout
Figure 7-1 SSB layout cells (top view)
20210_200.eps
NT72453
DC/DC
COMMON INTERFACE
USB
SAT
TUNER
DDR
AUDIO IN
HDMI
VGA
HDMI
SPDIF OUT
SERVICE
CONNECTOR
SCART
Headphone