Circuit Descriptions - Philips 4500 Series Service Manual

7. Circuit Descriptions

Index of this chapter:
7.1 Introduction
7.2 Power Supply
7.3 DC/DC Converters
7.4 Front-End Analogue ATV reception
7.5 HDMI
7.6 Video and Audio Processing - MST6852LP
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
you will find a separate drawing for clarification.
Circuit Descriptions
Layouts).Where necessary,
back to
div.table
TPS15.2A LA
7.1 Introduction
The TPS15.2A LA is a new chassis launched in AP in 2015.
The whole range is covered by MST6852LP. The major deltas
versus its predecessor support PAL/NTSC/SECAM, with
multi-media, Video out function.
The TPS15.2A LA chassis comes with the following stylings:
• series xxPFA4500xx
7.1.1 Implementation
Key components of this chassis are:
• SCALER MST6852LP-V5 EPLQFP-156
• Silicon Tuner MxL661-AG-R
• AUDIO TAS5729MDDCAR 10W TSSOP-48 for Audio Amp
7.1.2 TPS15.2A LA Architecture Overview
For details about the chassis block diagrams refer to chapter
9. Block Diagrams.
7. EN 19
2015-May-01