Harman Kardon HD 990, Service Manual

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5
5
4
4
3
3
2
2
1
1
E E
D D
C C
B B
A A
22.5792MHz
TIMER0
GPIO
GPIO
SPORT1 TX
SPORT0 TX
SPI Master
TIMER1
FLASH
512*8Kb
SDRAM
4*16Mb
HRS-LINK
BLOCK DECODE
MP3
SRC 24/176.4
ADSP-BF532SBSTZ400
HD990 Block Diagram Architecture
Receiver CS8416 DIGITAL IN
Loader
Supply power
for all boards
FLASH
512*8Kb
DVD22
SMPS
Board
33.8688MHz
VIA Servo
Chipset
VT7208
Motor
Driver
BA5888FP
SDRAM
4*16Mb
SF-HD850G
ATAPI
BUS
DACs
2*AD1955
Transparent
latch
OUT L
OUT R
DATA
BCLK
LRCLK
MCLK
Analog
Stage
BLCK
I2S BUS
DATA1
LRCLK
SPORT0 RX
DIGITAL OUT
Analog
Stage
XLR
OUTPUT
Analog
Stage
Analog
Stage
XLR
OUTPUT
FRONT PANEL BOARD
Micro Controler
EM78P156ELM
Key Pad
VFD +
LC75711NE
(Driver)
Remote IR
IR In
IR Out
IR In/Out Block
DATA2
NET "OUTTRAY", "INTRAY"--17mA;
NET "A+5V"--100mA;
NET "+5VSTBY"--100mA;
NET "A+14.5V", "A-14.5V"--100mA;
NET "D+5V", "M+5V"--600~700mA;
NET "D+3.3V"--200~300mA;
NET "LDOCD",
"LDODVD"--30-40mA.
HD990
1.1
HD990 Block Diagram Architecture
A3
1 1 Friday, June 25, 2010
Title
Size Document Number Rev
Date: Sheet of
AC Power cord
HD 990
harman/kardon