Circuit Descriptions - Philips TPM15.5L LA 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 and DVB-T, DVB-C; ISDB-T reception
7.5 HDMI
7.6 Video and Audio Processing - MT5561LVNT/B PBGA-329
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
TPM15.5L LA
7.1 Introduction
The TPM15.5L LA is a new chassis launched in LATAM in
2015. The whole range is covered by MT5561.
The major deltas versus its predecessor support NTSC;
PAL-M; PAL-N AND ISDB-T with also multi-media, CEC,
ARC, SPDIF functionality.
The TPM15.5L LA chassis comes with the following stylings:
• series xxPHG4900xx
• series xxPHG5000xx
• series xxPFG5000xx
7.1.1 Implementation
Key components of this chassis are:
• SCALER MT5561LVNT/B PBGA-329
• Silicon Tuner MxL661-AG-R
• DEMODULATOR TC90537FG LQFP-48
• AUDIO TAS5729MDDCAR 10W TSSOP-48 for Audio
Amplifier
7.1.2 TPM15.5L 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. EN 25
2015-Aug-08