Sharp LC-46LD266K (serv.man2) Service Manual ▷ View online
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LC-46LD264
LC-46LD265
LC-46LD266
Step 2. Remove the rear cover.
Remove 22 screws as Fig. 4
Fig 4
Step 3. Remove the power board.
Remove 9 screws and unplug 2 cables as Fig 5.
Remove 9 screws and unplug 2 cables as Fig 5.
Fig 5
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LC-46LD264
LC-46LD265
LC-46LD266
Step 4. Remove the scaler board and BKT.
Remove 5 Screws and unplug 4 cables as Fig 6
Fig 6
Step 5. Remove the speakers and connection wire as Fig 7.
Fig 7
Step 6. Remove the bracket.
Remove 8 screws as Fig. 8
Fig 8
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LC-46LD264
LC-46LD265
LC-46LD266
Step 7. Remove the Keypad, IR board, Deco,LVDS cable.
Remove 8 screws as Fig 9.
Fig 9
Step 8. Panel
Panel as Fig 10
Fig 10
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LC-46LD264
LC-46LD265
LC-46LD266
CIRCUIT DESCRIPTIONS
CHAPTER 5.
MAJOR IC INFORMATIONS
7. MAJOR IC INFORMATION
7.1. U401 (MT5561JUDT) & U401 (MT5561PUDT only for LC-50LD266)
General Description The MediaTek MT5561JUDT 1Gb & The MediaTek MT5561PUDT 2Gb family consists of a front-end
demodulator, a backend decoder and a TV controller and offers high integration for advanced applications. It integrates a
transport de-multiplexer, a high definition video decoder, an audio decoder, a two-link LVDS transmitter, a mini-LVDS
transmitter, and an NTSC/PAL/SECAM TV decoder with a 3D comb filter (NTSC/PAL). The MT5561PUDT 2Gb enables
consumer electronics manufacturers to build high quality, low cost and feature-rich DTV.
demodulator, a backend decoder and a TV controller and offers high integration for advanced applications. It integrates a
transport de-multiplexer, a high definition video decoder, an audio decoder, a two-link LVDS transmitter, a mini-LVDS
transmitter, and an NTSC/PAL/SECAM TV decoder with a 3D comb filter (NTSC/PAL). The MT5561PUDT 2Gb enables
consumer electronics manufacturers to build high quality, low cost and feature-rich DTV.
World-Leading Audio/Video
Technology: The MediaTek MT5561JUDT 1Gb & The MT5561PUDT 2Gb support Full-HD MPEG1/2/4/h.264 / VC1/ AVS
video decoder standards, and JPEG. The MediaTek MT5561JUDT 1Gb & The MT5561PUDT 2Gb also support MediaTek
MDDiTM de-interlace solution which can reach very smooth picture quality for motions. A 3D comb filter added to the TV
decoder recovers great details for still pictures. The special color processing technology provides a natural, deep colors and true
studio quality video. Moreover, the MediaTek MT5561JUDT 1Gb & the MT5561PUDT 2Gb family has built-in high resolution
and high-quality audio codec.
video decoder standards, and JPEG. The MediaTek MT5561JUDT 1Gb & The MT5561PUDT 2Gb also support MediaTek
MDDiTM de-interlace solution which can reach very smooth picture quality for motions. A 3D comb filter added to the TV
decoder recovers great details for still pictures. The special color processing technology provides a natural, deep colors and true
studio quality video. Moreover, the MediaTek MT5561JUDT 1Gb & the MT5561PUDT 2Gb family has built-in high resolution
and high-quality audio codec.
Rich Features for High Value Products: The MediaTek MT5561JUDT 1Gb & The
MT5561PUDT 2Gb family enable true single-chip experience. It integrates high-quality HDMI1.4a, high speed VGA ADC,
two-link LVDS, , USB2.0 receiver, Ethernet MAC+PHY, single core CPU, and DVB-T/DVB-C demodulators .
two-link LVDS, , USB2.0 receiver, Ethernet MAC+PHY, single core CPU, and DVB-T/DVB-C demodulators .
WW Common
Platform Capability: The MediaTek MT5561JUDT 1Gb & The MT5561PUDT 2Gb family supports, DVB-T, and DVB-C
demodulation functions. It reserves transport stream inputs for external demodulators for other countries or areas. TV maker
can easily port the same UI to worldwide TV models. First-class adjacent and co-channel rejection capability grants excellent
reception. Professional error-concealment provides stable, smooth and mosaic-free video quality
demodulation functions. It reserves transport stream inputs for external demodulators for other countries or areas. TV maker
can easily port the same UI to worldwide TV models. First-class adjacent and co-channel rejection capability grants excellent
reception. Professional error-concealment provides stable, smooth and mosaic-free video quality
.
Key Features
Worldwide multi-standard analog TV demodulator/DVB-T/DVB-C demodulators demodulators
1. Powerful CPU core
2. A transport de-multiplexer
3. A muti-standard video decoder
4. Rich format audio codec
5. Ethernet MAC+PHY
6. Local dimming (LED backlight) (option)
7. Panel overdrive control
8. Two-link LVDS
Worldwide multi-standard analog TV demodulator/DVB-T/DVB-C demodulators demodulators
1. Powerful CPU core
2. A transport de-multiplexer
3. A muti-standard video decoder
4. Rich format audio codec
5. Ethernet MAC+PHY
6. Local dimming (LED backlight) (option)
7. Panel overdrive control
8. Two-link LVDS
FEATURE LIST
Host CPU
•
ARM based CPU 700MHz
•
I-Cache and D-Cache for core ARM
•
Supports booting from serial flash, NAND flash
•
Supports security boot
•
JTAG ICE interface
•
Watchdog timers
Transport Demultiplexer
•
•
New generation demux design for transport stream (TS) process
•
Supports internal CI condition : 1 parallel TS input/ 2 serial inputs.
•
Supports CI/CI+ interface and controller
•
Supports DVB-T/T2, DVB-C and input data rate and format
MPEG1/2 Decoder
•
MPEG MP@ML, MP@HL
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Supports de-blocking filter
•
Full-HD 60FPS decoder
MPEG4 Decoder
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