Overall Block Diagram; Overall Block Diagram - Samsung HT-BD1255 Service Manual

Schematic Diagram
7-1 Overall Block Diagram
DOCKING
Pick-up / Loader
NAND
Bluetooth
FLASH
TX Module
64MB
Serial
SDRAM
Flash
UART
UART
F/E
BCM7620 SATA
Motor
Driver
USB1
For wireless LAN B/E
USB1/2
For Local Storage & USB Host
BCM7440P
USB2
UART
ETHER
Ethernet
CEC
MAC
System
SPI I/F
U-com
LC87F5NC8A
M E M 0
DISPLAY
DDR2 DDR2
IPOD ANALOG
AUDIO L/R 128MB (32M x 16b x 2ea) 256MB (64M x 16 x 2ea)
ADC
AUX
AK5367
SPI I/F
Tuner
Optical In
DIR I2S
AK4113
7-2
I-Pod
Y/C
IPOD Y/C VIDEO
Externel VIDEO
CVBS
MIXER
ANALOG AUDIO FILTER
INPUT ADC
MM1757
Y/Pb/Pr
CVBS/YPbPr
I-Pod
CP CHIP
HDMI TX
24Bit
SIL9134
UART
I2C CEC MICOM
MC80C0316
I2S
Video
Lo, Ro UART
Decoder
D/M 2ch
SYSTEM
Digital
U-com
64M Flash
Video
SDRAM ROM
PWM
I2S
Audio
I2S 5.1ch PCM
Audio
5.1ch PWM
DSP
Decoder
DRIVER
TMP320D788
PS9830B
M E M 1
I2S Rear 2ch
Sampling
DDR2 DDR2
Rate 48KHz Wireless
TX Module
Converter
CS8421
SMPS
POWER
This Document can not be used without Samsung's authorization.
 MAIN SYSTEM (BCM7440P) is connected to whole HT-BD1250 function IC. For HDMI 1080P, BCM7440P transfer the
digital video signal with 24bit to HDMI TX chip SIL9134. BCM7440P doesn't need external up scaling IC because it has a
own internal scalar. About it has internal video DAC, so it transfer the analog signal to MM1757, BCM7440P.
CVBS
MM1757 are video filter and amp.
YPbPr
HDMI TX
 AUDIO DSP (TM320D788) is connected to MAIN SYSTEM. They get the DIGITAL audio signal from main system with
bit stream status. And after decoding the signal, they send the digital signal, which is already decoded, to DIGITAL AMP
PWM driver IC.
 MAIN SYSTEM MICOM control BCM7440P, AUDIO DSP MICOM, CEC. He gets all information from BCM7440P, and
then transfer the information to AUDIO DSP MICOM. They have a communication among them with HOST ↔ SLAVE
Power Interface. And MAIN SYSTEM MICOM gets the information from User's remote control. So whenever he get the
Stage
information, he displays it on the VFD.
Power
Stage
 The loader transfer the source audio, video data to BCM7440P.
Power
Stage
 Both of USB are available, but front USB is for LOCAL STORAGE of PROFILE 1.1/2.0 and USB HOST function, whire
Rear USB is for wireless LAN Dongle.
 DIGITAL IN 1, 2 (SPDIF IN), AUX IN and Tuner IN are each connected to DIR and ADC IC. And then after transforming
DIGITAL SIGNAL (SPDIF IN is DIGITAL signal), the audio signal transfers to AUDIO DSP.
Wireless
RX Module
Samsung Electronics