Outline Of The Product - Pioneer DVR-220-S Service Manual

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7.3 OUTLINE OF THE PRODUCT

Main newly developed technologies
1. Pickup
A
The pickup supports quadruple-speed recording for the DVD-
R/RW.
A liquid-crystal tilt servo system is adopted for the pickup.
2. Recording-signal-processing LSI
• UPD3330GC (DRIVE Assy: IC101)
The recording-signal-processing module of conventional models
consists of two chips, but this has been integrated into a
single newly developed recording-signal-processing LSI, enabling
stable performance and cost reduction.
B
3. AV-signal-processing LSI
• M65673WG (MAIN Assy: IC1001)
The AV-signal-processing module of conventional models
consists
of eleven chips, but this has been integrated into a single
newly developed AV-signal-processing LSI, enabling large-scale
cost reduction while maintaining the conventional functions. In
the new LSI, all the basic functions necessary for a DVD
recorder have been integrated. Like conventional models, this
model is designed to support multitasking. The main functions
are as follows:
• 3-D Y/C separation
C
• Video decoding
• Frame TBC
• MPEG video encoding
• Dolby Digital Consumer Encoding
• ATA/ATAPI I/F (2 ch)
• Main CPU (32-bit RISC, 54 MHz)
• Graphics engine (OSD, scaling, mixing)
• MPEG video decoding
• Audio decoding (AC-3, MPEG)
• Video encoding
• Progressive conversion
• Audio I/F
D
• 3-D DNR for playback
E
F
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2
C
MAIN ASSY
DVR-220-S
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3
IC1001
Fig.1 MAIN Assy
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4
SIDE B
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