Philips TPN15.2E LA, Service Manual

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Circuit Descriptions EN 24 TPN15.2E LA 7.
2015-Nov-27
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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 - NT72666MBG-BA
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 TPN15.2E LA is a new chassis launched in Europe in
2015. The whole range is covered by NT72666 platform.
The major deltas versus its predecessor support DVB-TC;
DVB-TC/T2; DVB-TC/S2 with also 4K, multi-media,
USB3.0, ARC, CEC function.
The TPN15.2E LA chassis comes with the following stylings:
•
series xxPxx4900
7.1.1 Implementation
Key components of this chassis are:
•
Scaler NT72666BG-BA/D HS-PBGA-1135
• TUNER EU DTOS40CIL034B for T&H&K
• TUNER EUROPE TDQS-A751F for K
• DEMODULATOR NT78822QG/A QFN-48 )
• NAND FLASH MX30LF2G18AC-TI 2Gb TSOP-48
• DRAM K4B2G1646Q-BCK0 2Gb FBGA-96
• AUDIO AD87588-LG48NAY 20W E-LQFP-48 150
7.1.2 TPN15.2E 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 .