TC-L42U5X

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IC block diagram 1. Zoran ZR748 • Integrated Digital & Analog Demodulator • 8VSB/QAM-B • NTSC/BTSC/A2K • Video Inputs • Three (3) 1080p HDMI (v1.4a/DC)* • One (1) 1080p YPbPr • One (1) VGA, up to WUXGA resolution • Two (2) CVBS*, One (1) S-Video • Audio Inputs • Five (5) stereo L/R line-level* • Internal Video/Audio Processing • NTSC video decoder • MPEG-2 decoder • 10-bit video processing • 1080i motion-adaptive de-interlacer • ACM-2D color processor • Graphics blending/overlay • Audio DSP • Video Outputs • Dual-channel LVDS (1080p, up to 10bpp) • miniLVDS & RSDS (6/8bpp, up to 330MHz) • LCD panel timing control signals (<strong>TC</strong>ON) • Audio Outputs • One (1) stereo L/R DDX differential • One (1) stereo L/R single-ended DDX • Optional up-to-four (4) more single-ended DDX • Optional up-to-three (3) I2S stereo pairs • One (1) S/PDIF • System Processors & Interfaces • 300MHz system CPU • TV microcontroller for standby mode • One (1) USB 2.0 • External SPI Flash Memory: 2-16MByte • 2-4MB typical for ATSC DTV application • External 16-bit DDR2 Required • DDR2-800 for most design configurations • DDR2-1066 for 1080p with overdrive designs 16
• 64MByte typical for most designs • Power • 1.1V core voltage, 1.8V memory I/F, 3.3V I/O • Two Package Options • 365-ball BGA, 23x23mm2 • 256-pin LQFP with e-pad, 28x28mm2 (*) Slight variation of support with QFP package 1.1. SupraHD® 748 IC Description The SupraHD® 748 is a member of the SupraHD® family of DTV system-on-chip (SoC) developed by Zoran. This device is intended to be used in ATSC high-definition digital television implementations. This device includes all of the functionality required to support the television implementations shown in the following block diagrams. Figure 2 shows a typical ATSC system implementation using the SupraHD® 748. Figure 3 shows the detailed block diagram of the SupraHD® 748. Figure 4 shows the video and audio input/output options of the SupraHD® 748. 1.2. SupraHD® 748 Features The following sub-sections list the features of the SupraHD® 748 per category. Note that features unique to the BGA package are indicated with a “(BGA package)” designation while QFP package features are indicated with “(QFP package)”. 1.2.1. Embedded Processing Unit • High performance CPU • Integrated high-performance MIPS® 4KEc CPU operating at 300MHz • 32-bit MIPS32 enhanced architecture • 8 K instruction cache, 8 K data cache, (2-way set associative) • Programmable memory management unit • Multiply/Divide unit • Power-down mode (triggered by WAIT instruction) • EJTAG debug support • Fully production-tested software suite • ATSC/NTSC DTV application with customizable OSD • V-Chip for analog and digital channels • PSIP parsing for channel map and EPG • Analog and digital closed-captioning (EIA-608 and EIA-708) 17
Page 1 and 2: Model No. TC-L42U5 TC-L42U5X ORDER
Page 3 and 4: Attention: This service manual is o
Page 5 and 6: 2. Alignment instructions (1) Test
Page 7 and 8: (4) Adjustment instruction At any i
Page 9 and 10: (5) Items of Factory menu When in P
Page 11 and 12: 45 1650 Positive 74.25 1280 40 220
Page 13 and 14: (4) Upgrading is starting, please w
Page 15: 4-1 Block Diagram SPB42T 42” Bloc
Page 19 and 20: • Vertical scaler - 5-tap FIR, 64
Page 21 and 22: - 82dB dynamic range and -75dB THD
Page 23 and 24: 1.2.7. Front-End Demod / Demux •
Page 25 and 26: • IRR input • General-purpose 8
Page 28 and 29: I. BLOCK SPB42T 42-inch Wiring Diag
Page 30 and 31: 18 GND BLACK 17 GND 5 Light Sensor
Page 32 and 33: Trouble shooting 1. Fault clearance
Page 34 and 35: 2-2 Has audio but no video out 2-3
Page 36 and 37: Exploded View 4 30 23 29 7 15 21 27
Page 38 and 39: 9. Replacement Parts List Note: All

TC-L42U5X

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