Circuit Descriptions
EN 22 TPS14.1A LA7.
2014-Oct-24
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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 ATV reception
7.5 HDMI
7.6 Video and Audio Processing - MST6931XP
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 TPS14.1A LA is a new chassis launched in Asia-Pacific in
2014. The whole range is covered by MST6931. The major
deltas versus its predecessor support NTSC/PAL/SECAM,
with multi-media, Video out functionality.
The TPS14.1A LA chassis comes with the following stylings:
• series xxPxA4509xx
• series xxPHA4309xx
7.1.1 Implementation
Key components of this chassis are:
• SCALER MST6931XP-V5 EPLQFP-128
• TUNER China DT21CN-2-E
• TUNER China DT21WN-2-E
• AUDIO APA2176AQBITRG 0.27W TQFN3X3-16 for
Headphone Amplifier
• AUDIO APA2619RI-TRG 15W TSSOP-28P for Audio
Amplifier
7.1.2 TPS14.1A LA Architecture Overview
For details about the chassis block diagrams refer to chapter 9.
Block Diagrams. An overview architecture can be found in
Figure 9.1
.
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