Outline Of The Product - Pioneer DVR-230-AV Service Manual

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7.3 OUTLINE OF THE PRODUCT

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Main newly developed technologies
1. Pickup
A
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.
B
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.
C
IC1102
FLASH
TE
L 13942296513
IC1201, IC1202
DDR SDRAM
D
Drive Assy
(DVD-R/RW)
E
[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
www
• 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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IC1001
AV Signal
Playback
Processing
LSI
Record
Fig1. System configuration
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y
. i
DVR-230-S
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IC101
Tuner / FL
Control
CPU
Interface IC for DVR
IC3101
• Tuner / Line
Audio A/D
Select
PCM1803ADB
• Output Drive
IC3201
Audio D/A
PCM1742KE
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4
2 9 9 4 2 8
1 5 0 5 8 2 9 9 4
FL
IC100
HA118326APFR
Analog Audio
Analog Audio
DIF
m
co
4
9 9
2 8 9 9