Hitachi HTD-K180E, Service Manual

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1. GENERAL DESCRIPTION
1.1 MT 1379
The MT1370 Progressive Scan DVD Player Combo chip is a single -chip MPEG video decoding chip that
integrates audio/video stream data processing, TV encoder four video DACs with macrovision, copy protection,
DVD system navigation, system control and housekeeping functions.
These features can be listed as follows:
General Features:
- Progressive scan DVD -player combo chip.
- Support NTSC, PAL-BDGHI, PAL-N, PAL-M interlace TV format and 480p, 576p progressive TV format.
- Built-in progressive video output.
- DVD-Video, VCD 1.1, 2.0 and SVCD.
- Unified track buffer A/V decoding buffer.
- Supports 16-bit/32-bit SDRAM data bus interface.
- Servo controlling and data channel processing.
Video Related Features:
· Macrovision 7.1 for NTSC/PAL interlaced video.
· Simultaneous composite video and S-video outputs, or composite and YUV outputs, or
composite and RGB outputs.
· 8-bit CCIR 601 YUV 4:2:2 output.
. Decodes MPEG video and MPEG2 main profile at main level.
· Maximum input bit rate of 15 Mbits/sec.
Audio Related Features:
· Dolby Digital (AC-3) and Dolby Pro Logic.
· Dolby Digital S/PDIF digital oudio outputs .
· High-Definition Compatible Digital (HDCD) decoding.
· CD-DA.
· MP3.
1.2 MEMORY
SDRAM Memory Interface
The MT1379 provides a glueless a 16-bit interface to DRAM memory devices used as OSD MPEG stream and
video buffer memory for a DVD player. The maximum amount of memory supported is 16 Mb of Synchronous
DRAM ( SDRAM ). The memory interface is configurable in depth to support 128 Mb adressing. The memory