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7.3
On-Board Platform Supply
In this platform, an on-board platform supply has been
foreseen. This means that the mains voltage, after filtering, is
fed to the SSB.
The supply is a Self Oscillating Power Supply (SOPS) and
working according to the Quasi Resonant Conversion (QRC)
principle.
7.4
On-board DC/DC Converters
In this platform, on-board DC/DC converters have been
foreseen.
7.4.1
Device specifications
Tuner (TAFT-S710D)
The tuner has the following specifications:
•
2 in1 tuner for Analog.
•
Covers all bands in VHF and UHF including hyper
channels for CCIR system.
•
I2C- bus control of tuning, address selection, Broadcasting
system.
•
Built-in DC/DC Converter (5v to 33V) & PAL(B/G, I, D/K) /
SECAM L/L' Demodulator/NTSC(B/G)
Repair tip: After replacement of the tuner, the option code
should be checked, even when the set appears to function
correctly! Refer also to chapter 5 "Service Modes, Error Codes,
and Fault Finding".
7.5
MST9A885GL
In this chassis, the MST9A885GL is a high performance and
fully integrated IC with resolutions up to SXGA (1280 × 1024)
/ WXGA+ (1440 × 900). It is configured with an integrated
triple-ADC/PLL, an integrated DVI/HDCP/HDMI receiver, a
multi-standard TV video and audio decoder, a video
de-interlacer, a scaling engine, the MStar ACE-3 color engine,
an on-screen display controller, an 8-bit MCU and a built-in
output panel interface. By use of external frame buffer, 3-D
video decoding and processing are fulfilled for high-quality TV
applications. To further reduce system costs, the
MST9A885GL also integrates intelligent power management
control capability for green-mode requirements and spread-
spectrum support for EMI management.
Circuit Descriptions
TPS2.1E LA
7.
EN 23
2009-Apr-10
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