Outline Of The Product; System Configuration - Pioneer DVR-231-S Service Manual

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7.3 OUTLINE OF THE PRODUCT

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Main newly developed technologies
1. Pickup
The pickup supports 16 times-speed recording for the DVD-R and
6 times-speed recording for DVD-RW.
A new liquid-crystal tilt servo system is adopted for the pickup.
2. Recording-signal-processing LSI
• UPD63641GC (DRIVE Assy: IC201)
The recording-signal-processing module of conventional models
have outside CPU, but this has been integrated into a single newly
developed recording-signal-processing LSI, enabling stable
performance and cost reduction.

System configuration

In each signal-processing LSI of the main function blocks,
various processes have been integrated into one chip, which
enables simpler system configuration. With the AV-signal-
processing LSI at the center, video inputs/outputs, audio
inputs/outputs and various memory cells are connected to it.
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L 13942296513
IC1201, IC1202
DDR SDRAM
[Memorized Data]
• FLASH ROM (IC1102 MAIN ASSY)
The storing area of a program code and setting information
The backup data of Tuner information and user setting
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• CPU SDRAM (IC1201, IC1202 MAIN ASSY)
The execution area and working area of a program
An overall memory for system assuring 32 bit width
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IC1102
Flash
Playback
Drive Assy
Record
(DVD-R/RW)
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IC3101
Audio A/D
PCM1802
IC1001
AV Signal
Processing
LSI
IC3201
Audio D/A
PCM1742KE
Fig1. System configuration
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DVR-231-S
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2 9 9 4 2 8
Video : IC402 MM1657XJBE
Audio : IC601 BD3823FV
1 5 0 5 8 2 9 9 4
Tuner / Line
Select
IC101
Tuner / FL
Control
CPU
Analog Audio
DIF
m
co
7
8
9 9
A
B
C
2 8 9 9
FL
D
E
F
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