System Configuration - Pioneer DVR-520H-S Service Manual

1

System configuration

QQ
3 7 63 1515 0
In each signal-processing LSI of the main function blocks,
various processes have been integrated into one chip, which
A
enables simpler system configuration. With the AV-signal-
processing LSI at the center, video inputs/outputs, audio
inputs/outputs, DV inputs/outputs, writer and various
memory cells are connected to it.
IC1102
Flash
B
IC1103
SRAM
IC1101, IC1201, IC1301
IC1401 SDRAM
Drive Assy
(DVD-R/RW)
C
TE
L 13942296513
[Memorized Data]
D
• EEPROM (IC204 JCKB ASSY)
The information about Tuner is backed up.
(Pre-set CH, AFT ON/OFF, Skip CH, etc)
Information about timed recording
Other information
(The state of Volume, remote control mode and
last positions (Line/Tuner, etc)
• CPU SDRAM (IC1101 MAIN ASSY)
The execution area and working area of a program
• FLASH ROM (IC1102 MAIN ASSY)
The storing area of a program code and setting information
E
• SRAM (IC1103 MAIN ASSY)
The working area for record and the storing area of setting
information (backup RAM)
• DEC SDRAM (IC1201 MAIN ASSY)
The working area of MPEG playback and OSD/Thumbnail
(OSD is mainly for Disc Menu creation in Video mode)
www
• ENC SDRAM (IC1301 MAIN ASSY)
The working area of MPEG recording and analog input and output (AVIO)
F
136
1
http://www.xiaoyu163.com
2
UPD72893BGD-LML
IC5202
1394 Link /
DV Codec
IC1001
AV Signal
Playback
Processing
LSI
Record
Playback
HDD Record
Fig2. System configuration
x ao
y
. i
2
http://www.xiaoyu163.com
3
UPD72852AGB-8EU
IC5101
1394 Phy
IC3301
SRC
IC3101
Audio A/D
AK5357VT
IC3201
Audio D/A
PCM1742KE
Q Q
3 6 7
• ATA SDRAM (IC1401 MAIN ASSY)
The working area of ATA/OSD2/Audio TBC (OSD2 is for all GUI.)
• ATA SDRAM (IC1421 MAIN ASSY)
This is only for HDD model.
The working area about HDD operation.
• DV SDRAM (IC5204 MAIN ASSY)
The working area of Link and DV Codec
u163
DVR-520H-S
3
4
2 9 9 4
8
1394 (DV)
Video : IC701 LA73033
Audio : IC601 LC75342M
Tuner / Line
Select
IC202
Tuner / FL
FL
Control
CPU
CVBS/YC/YCbCr
Analog Audio
DIF
1 3 1 5 0 5 8 2 9
m
co
.
4
2 8
9 9
9 4 2 8 9 9