Table of Contents
Advertisement
LC-52SE94U/LC-52SE941U/LC-65SE94U
CHAPTER 7.
LC-52SE94U/LC-52SE941U/LC-65SE94U
MAJOR IC INFORMATIONS
Service Manual
[1] MAJOR IC INFORMATIONS
1. MAJOR IC INFORMATIONS
1.1. IC501 (VHiSM5351AF-1Q)
This I2C bus-controlled audio/video switch is designed to switch video signal between two-system color difference (component) signal, one-system S
video signal and three-system composite signal, and to switch audio signal between three-system signal.
The analog audio/video signal from the INPUT-1 or INPUT-2 and INPUT-3 input terminal is fed into this IC for selection.
The video output signal from this IC flows through a low-pass filter into the video signal processing circuit IC8001 (iXC376WJQZ).
The audio output signal from this IC flows into audio codec IC1403 (AK4682AE).
1.2. IC2701 (VHiYDA147SZ-1Y)
The Class-D type digital audio power amplifier YDA147SZ gives maximum continuous output of 15 W/ch.
1.3. IC803 (VHiSii9181+-1Q)
The Sii9181 is TMDS Switch devices supporting Revision 1.3 of the HDMI Specification.
It is a single HDMI input, single output device used to buffer the TMDS signal.
The Sii9181 is used to receive a set of HDMI/DVI signals from the HDMI/DVI receiver-port, and to generate a HDMI/DVI fully compliant stream as an
output.
It also provides DDC/HDCP, HPD, and +5V switching to allow full compliance to the HDMI/DVI Specification.
On this IC, the INPUT-4 HDMI port is switched.
1.4. IC1403 (VHiAK4682AE-1Y)
This IC provides for 2-channel A/D and 4-channel D/A (192-kHz sampling).
The analog audio signal from IC501 or INPUT-6 (HDMI-analog audio) or INPUT-7 input terminal is fed into this IC for selection.
The selected signal flows through A/D-unit into the video signal processing circuit IC8001 (iXC376WJQZ).
The digital audio signal (I2S) from IC1402 flows into audio power amplifier IC2701 and AUDIO OUTPUT terminal via each D/A-unit.
1.5. IC1604 (VHiSii9185+-1Q)
The Sii9185 is the TMDS Switch devices supporting Revision 1.3 of the HDMI Specification.
This IC is used to select a single set of HDMI/DVI signals from one of three HDMI/DVI receiver-ports, and to generate a fully compliant HDMI/DVI
stream as an output.
It also provides DDC/HDCP, HPD, and +5V switching to allow full compliance to the HDMI/DVI Specification.
On this IC, the INPUT-4, 5, 6 HDMI port are switched.
1.6. IC2002 (RH-iXC331WJN1Q)
The monitor microprocessor is intended to communicate with the main microprocessor and to operate the system.
It also controls power of the entire system.
7 – 1
Advertisement
Table of Contents
