Samsung DSB-S300G Service Manual Download Page 89

Page: 89 / 101

Circuit Operating Descriptions

13-14

Samsung Electronics

Block Diagram – 28F640J3

2) HDD

This saves the video files which are received from broadcasting and
MP3&JPEG files from external memory (USB Interface).

fig. 13-6

D(15:0)

VCCQ

Output

Buffer

Intput Buffer

Program/Erase
Vdtage Switch

Write Shate
Machine

Commend

User

Interface

Y-Decoder

Address
Counter

Address

Latch

Input Buffer

A(MAX:MIN

Data

Comparator

A(2:0)

Status

Query

Identifier

Multiplexer

I/O Logic

Logic

32-Mbit: Thirty-two

64-Mbit: Sixty-four

128-Mbit: One-hundred

twenty-eight

128-Kbyte Blccks

Data

rite

Buf

fer

Output

Latch/Multiplexer

Y-Gating

X-Decoder

VCC

BYTE#

STS

RP#

OE#

WE#

CE2

CE1

CE0

GND

VCC

VPEN

Summary of Contents for DSB-S300G

Page 1: ...td Any unauthorized use of Manual can be punished under applicable international and or domestic law Œ Dual Recording Picture in Picture 2 Tuners ˇ Timeshift High speed USB 2 0 Host ˆ SRS TrusurroundXT for Virtual Surround Sound Ø Built in 160GB HDD Up to 80 hours Recording Electronic Progarm Guide EPG Digital Audio Output SPDIF Optical 1 Smart Card BASIC DSB S300G Application Models DCB P850R DCB...

Page 2: ...Software Update 3 1 3 2 3 1 DCB P850R S DCB P850Z S Software Update 3 1 4 Disassembly and Reassembly 4 1 4 6 4 1 Cabinet and PCB 4 1 5 Trouble Shooting 5 1 5 10 6 Exploded View and Parts List 6 1 6 2 7 Electrical Parts List 7 1 7 6 8 Block Diagrams 8 1 8 4 8 1 All Block Diagram 8 2 8 2 5100 Black Diagram 8 3 8 3 DDRSDRAM Block Diagram 8 4 9 Wiring Diagram 9 1 9 2 10 PCB Diagrams 10 1 10 8 10 1 Mai...

Page 3: ...PCB 11 10 11 10 S Card Power Main PCB 11 11 11 11 Reset RS232 EEPROM Main PCB 11 12 11 12 Front Front PCB Main PCB 11 13 12 Operating Instructions 12 1 12 6 13 Circuit Operating Descriptions 13 1 13 22 13 1 Supply MOD101 13 1 13 2 Tuner TM101 TM102 13 2 13 3 Main Processor U302 13 3 13 4 Memory Interface 13 12 13 5 Video Out 13 18 13 6 Audio Out 13 19 13 7 Smart Card Interface TDA8024 13 20 13 8 U...

Page 4: ...erwriters Laboratories UL 1270 40 7 With the instrument s AC switch first in the ON position and then in the OFF position measure from a known earth ground metal water pipe conduit etc to all exposed metal parts of the instrument antennas handle brackets metal cabinets screw heads metallic overlays control shafts etc espe cially any exposed metal parts that offer an electri cal return path to the ...

Page 5: ...nched out of place or frayed wiring Do not change spacing between a component and the printed circuit board Check the AC power cord for damage 5 Components parts and or wiring that appear to have overheated or that are otherwise damaged should be replaced with components parts and or wiring that meet original specifications Additionally determine the cause of overheating and or damage and if neces...

Page 6: ...d lead last 2 The service precautions are indicated or printed on the cabinet chassis or components When servic ing follow the printed or indicated service precau tions and service materials 3 The components used in the unit have a specified flame resistance and dielectric strength When replacing components use components which have the same ratings Components identi fied by shading by or by in th...

Page 7: ...posure of the assem bly 3 Use only a grounded tip soldering iron to solder or unsolder ESD devices 4 Use only an anti static solder removal devices Some solder removal devices not classified as anti static can generate electrical charges suffi cient to damage ESD devices 5 Do not use freon propelled chemicals These can generate electrical charges sufficient to damage ESD devices 6 Do not remove a ...

Page 8: ... MPEG 2 ISO IEC 13818 Transport Stream Profile and level MPEG 2 MP ML 4 2 2 Data rate 1 15 Mbs Video formats 4 3 normal and 16 9 wide screen Picture resolution 720 H x 576 V x 50 fields sec System decoding MPEG 1 ISO IEC 11172 3 layer I II Audio mode Mono Dual Stereo Joint stereo Sampling frequency 32 44 1 48kHz Scart TV Video CVBS RGB Audio L R Scart VCR Video CVBS Audio L R RCA Jack Video CVBS A...

Page 9: ...CB P850R RS 3Languages Subtitle Caption O O Teletext O O Transparency 0 100 0 OR 100 EPG O O Channel List O O Favorite Channel List O O Bouquets O O Audio Volume Control O O Factory Default O O Serial Download RS232 Serial Interface RS232 Serial Interface USB Interface X O Timeshift X O PIP X O HDD Recording 2CH X O Composit CVBS RCA X O Composit CVBS SCART O O S Video Super Jack X X S Video SCART...

Page 10: ...l I B German DCB P850Z ZS English Swedish DCB P850R RS English French Dutch Remote Control Unit 1EA 1EA Battery AAA 2EA AAA 2EA SCART Cable 1EA 1EA Component Video Cable X X A V RCA Cable X a RF Cable X O Modem Cable O X Input Voltage AC 100 240V 50 60 Hz AC 230V 50 60 Hz Power Consumption Max 25W Max 30W Size 270 x 200 x 45 mm 381 x 267 x 60 mm Weight 1 2Kg 3 1Kg Model name DCB S305G DCB P850Z ZS...

Page 11: ...No Remark Remote Control Batteries for Remote Control MF59 00287A 4301 000115 Model Standard of DCB P850Z XEE S N A Model Standard of DCB P850Z XEE Model Standard of DCB P850Z XEE MF68 00409A User s Manual Model Standard of DCB P850Z XEE AC39 00017A RF Cable Model Standard of DCB P850Z XEE AH39 00043B SCART Cable ...

Page 12: ...e button SW Upgrade 3 Press the OK button on the Product Information menu then the SW Upgrade menu will appear To scan particular channel select a mode between Auto and Manual In the manual mode you can select the channel and PID To start the software upgrade press the OK button Caution When the receiver is transferring you must keep a thing intact until transfer is ended ...

Page 13: ...3 2 Software Update Samsung Electronics MEMO ...

Page 14: ...crews Œ ˇ 2 Remove Top Cabinet ˆ Fig 4 1 Top Cabinet removal Œ 1 SCREW DCB P850RS P850ZS P853ZS 3 X 8 S DCB P850R P850Z P853Z 3 X 10 B 3 SCREWS 3 X 8 S ˆ TOP CABINET 1 SCREW DCB P850RS P850ZS P853ZS 3 X 8 S DCB P850R P850Z P853Z 3 X 10 B ˇ 3 SCREWS DCB P850RS P850ZS P853ZS 3 X 8 S DCB P850R P850Z P853Z 3 X 10 B ...

Page 15: ...4 2 Disassembly and Reassembly Samsung Electronics 4 1 2 Ass y Hard Disk Removal 1 Remove 4 Screws Œ 2 Remove Ass y Hard Disk Fig 4 2 Ass y Hard Disk Removal ASS Y HARD DISK Œ 4 SCREWS 2 8 X 4 S ...

Page 16: ...mbly and Reassembly 4 3 Samsung Electronics 4 1 3 Main PCB S M P S PCB Removal Fig 4 3 Main PCB S M P S PCB Removal 1 Remove 8 Screws Œ 2 Remove Main PCB S M P S PCB ˇ MAIN PCB ˇ S M P S PCB Œ 8 SCREWS 3 X 6 S ...

Page 17: ...4 4 Disassembly and Reassembly Samsung Electronics 4 1 4 Ass y Front Removal 1 Remove 4 Hooks Œ ˇ 2 Remove Ass y Front Fig 4 4 Ass y Front Removal ˇ 2 HOOKS ASS Y FRONT 1 HOOK Œ 1 HOOK ...

Page 18: ...nd Reassembly 4 5 Samsung Electronics 4 1 5 Chassis Rear Fan Removal 1 Remove 3 Screws Œ 2 Remove Fan ˇ 3 Remove Chassis Rear Fig 4 5 Chassis Rear Fan Removal ˇ FAN CHASSIS REAR Œ 1 SCREW 3 X 8 S Œ 2 SCREWS 5 X 14 S ...

Page 19: ...4 6 Disassembly and Reassembly Samsung Electronics MEMO ...

Page 20: ...the voltage of PRCU1 both of input voltage Check the voltage of Vcc for SMPS controller Check the connection at several main power Connect between SMPS and Main Power Connect Power Plug Check PAFT1 Fuse REMOVE and Change 1 Check the Themistor PLRU1 3D 9 2 Check the shoting of PQIZ1 If the controller is operating unstably or no operation change the PQIZ1 Check the shorting at several main power ...

Page 21: ...ta OK Check serial registers condition of TS control pins No problem Check Decoder U302 Check tuner s TM101 TM102 voltages 5 12pin 5V 6pin 32V 14 15pin 3 3V and 16pin Reset High Connect Antenna cable Check Voltage drive circuit and repair trouble Check I2C bus line between tuner and CPU Change for same spec tuner Correct resistors of location R105 R116 Œ DATA 29 Pin I2C_DATA CLK 30 Pin I2C_CLK ˇ C...

Page 22: ...A Connector Check Œ CVBS at R713 Check CVBS at 4pin of U701 Check ˇ CVBS at 36pin of U701 Check Failure mode of J703 Check Failure mode of U302 Check Failure mode of Video filter C756 L708 C763 C773 R736 C715 Check Failure mode of U701 Œ CVBS at R713 CVBS at 4Pin of U701 ˇ CVBS at 36Pin of U701 ...

Page 23: ...R713 Check CVBS at 4pin of U701 Check ˇ CVBS at 44pin of U701 Check CVBS at 19pin of Scart Connector Check Failure mode of J801 SCART Connector Check Failure mode U302 Check Failure mode of U701 Check R806 R812 C809 Check Video filter circuit C756 L708 C763 C773 R736 L715 Œ CVBS input at R713 CVBS at 4pin of U701 ˇ CVBS at 44pin of U701 ...

Page 24: ...Ø38 OF U701 Check R G B signal at Pin 15 ˆ11 Ø7 of SCART Jack Check RGB Jack Connection STB ÍTV Change to RGB mode Check Failure mode of U302 STi5100 Check Open or Short at Video filter circuit R C755 L710 C767 C771 R738 G C761 L711 C766 C772 R741 B C757 L707 C764 C770CR740 Check Failure mode of U701 STV6412A Check Open or Short at the circuit R R805 R811 C808 G R804 R810 C807 B R803 R809 C806 Œ R...

Page 25: ...lectronics No Yes No Yes SPDIF Output Missing Optical Check 5V at Pin2 of J702 Check Œ Digital Audio signal at R714 Check J702 Optical Jack Failure mode Check 5V Drive Check Failure mode U302 STi5100 Œ Digital Audio signal at R714 ...

Page 26: ...Pin28 27 of U701 Check Audio signal at L706 L705 Check Failure mode of J703 RCA Connector Check Failure mode of U302 STi5100 Check Failure mode of U702 and Application Circuit pin 8 12V Check of U701 STV6412 Failure mode Check U1001 Failure mode and application circuit Œ Analog Audio Signal at C704 C706 Analog Audio Signal C725 C732 ˇ Analog Audio output at Pin28 27 of U701 Audio signal at L706 L7...

Page 27: ...f U701 Check Analog Audio Signal at L801 L802 Check Failure mode of J801 SCART Connector Check Failure mode of U302 STi5100 Check Failure mode of U702 and Application Circuit pin 8 12V Check of U701 STV6412 Failure mode Check Open or Shot Circuit at C801 R801 C804 L801 R807 Œ Analog Audio Signal at C704 C706 Analog Audio Signal C725 C732 ˇ Analog Audio output at Pin33 32 of U701 Analog Audio Signa...

Page 28: ...in 5 of U502 Check Signal and Voltage at DM pin3 DP pin4 VBUS pin2 of J1301 Front Board Check Open or Short at J1302 USB connector on Front Board Check Failure mode of U302 STi5100 Check Failure mode of U501 and Circuit Check Short or Open at J1202 and Flat cale Connection Œ Signal at pin 1 3 of U502 DM pin3 DP pin4 VBUS pin2 of J1301 Front Board ...

Page 29: ...k the cable at HDD power cable and ATA Data Cable Check the HDD Selection Master Check the Data Signal at Œ U603 U604 ˇ U605 Check Failure mode of HDD Check Failure mode of SMPS Board Fix the cable Fix the HDD Selection Master Check Open or Short at U601 U602 U603 U604 U605 and Their Circuit Œ U603 Pin1 ATA Select U603 Pin11 ATA Address ˇ U604 U605 Pin2 ATA Data ...

Page 30: ...Samsung Electronics 6 1 6 Exploded View and Parts List 6 1 Ass y Chassis 6 2 ...

Page 31: ...View and Parts List 6 2 Samsung Electronics C001 W009 P005 C022 A001 C015 W260 W271 W268 P003 P001 P025 C527 W275 W336 C904 VS105 P295 P030 W001 W260 W001 W260 W001 S N A Service Not Available 6 1 Ass y Chassis ...

Page 32: ... DCB P850Z XEE C527 AC59 00076A HDD 160G ST3160212ACE 512Bytes se 1 SA C904 MF39 00309A HARNESS DTB P850F UL CSA 4P 150 1 SA P001 MF92 00182A ASSY PCB MAIN DCB P850R ASSY 1 SA P003 MD92 00064A ASSY PCB SMPS DTB P850F_SMPS Assy 1 SA P005 MD92 00065A ASSY PCB FRONT DTB P850F_FRONT As 1 SA P025 3903 000281 CBF POWER CORD AT EU CP2 HOUSING 1 SA P030 3103 001151 FAN DC 12V 70mA 2050rpm 0 27m 3 m 1 SA P...

Page 33: ...Exploded View and Parts List 6 4 Samsung Electronics MEMO ...

Page 34: ...10V GP TP 5x11 5 1 SA C129 2401 000240 C AL 100uF 20 10V GP TP 5x11 5 1 SA C157 2203 005148 C CER CHIP 100nF 10 16V X7R 160 1 SA C158 2203 005148 C CER CHIP 100nF 10 16V X7R 160 1 SA C159 2203 005148 C CER CHIP 100nF 10 16V X7R 160 1 SA C301 2203 005148 C CER CHIP 100nF 10 16V X7R 160 1 SA C302 2203 005148 C CER CHIP 100nF 10 16V X7R 160 1 SA C303 2203 005148 C CER CHIP 100nF 10 16V X7R 160 1 SA C...

Page 35: ...20 16V GP TP 4x7 5 1 SA C776 2203 005148 C CER CHIP 100nF 10 16V X7R 160 1 SA C777 2203 000236 C CER CHIP 0 1nF 5 50V C0G 1608 1 SA C801 2401 002144 C AL 47uF 20 16V GP TP 5x11 5 1 SA C803 2401 002144 C AL 47uF 20 16V GP TP 5x11 5 1 SA C804 2203 000888 C CER CHIP 4 7nF 10 50V X7R 160 1 SA C805 2203 000888 C CER CHIP 4 7nF 10 50V X7R 160 1 SA C806 2203 000236 C CER CHIP 0 1nF 5 50V C0G 1608 1 SA C8...

Page 36: ...12 2500mA TP 1 1 SA L702 3301 001495 BEAD SMD 120ohm 2012 2500mA TP 1 1 SA L703 3301 001495 BEAD SMD 120ohm 2012 2500mA TP 1 1 SA L705 2703 000229 INDUCTOR SMD 6 8UH 20 2012 1 SA L706 2703 000229 INDUCTOR SMD 6 8UH 20 2012 1 SA L707 2703 000125 INDUCTOR SMD 10uH 10 2012 1 SA L708 2703 000125 INDUCTOR SMD 10uH 10 2012 1 SA L709 2703 000125 INDUCTOR SMD 10uH 10 2012 1 SA L710 2703 000125 INDUCTOR SM...

Page 37: ...5 1 10W TP 1608 1 SA R331 2007 000074 R CHIP 100ohm 5 1 10W TP 1608 1 SA R332 2007 000113 R CHIP 33ohm 5 1 10W TP 1608 1 SA R401 2007 000113 R CHIP 33ohm 5 1 10W TP 1608 1 SA R402 2007 000113 R CHIP 33ohm 5 1 10W TP 1608 1 SA R403 2007 000113 R CHIP 33ohm 5 1 10W TP 1608 1 SA R404 2007 000113 R CHIP 33ohm 5 1 10W TP 1608 1 SA R405 2007 000090 R CHIP 10Kohm 5 1 10W TP 1608 1 SA R406 2007 000113 R C...

Page 38: ...10W TP 1608 1 SA R822 2007 001167 R CHIP 75ohm 5 1 10W TP 1608 1 SA R823 2007 001167 R CHIP 75ohm 5 1 10W TP 1608 1 SA R824 2007 000090 R CHIP 10Kohm 5 1 10W TP 1608 1 SA R825 2007 001167 R CHIP 75ohm 5 1 10W TP 1608 1 SA R826 2007 000078 R CHIP 1Kohm 5 1 10W TP 1608 1 SA R827 2007 000106 R CHIP 220Kohm 5 1 10W TP 1608 1 SA R828 2007 001167 R CHIP 75ohm 5 1 10W TP 1608 1 SA R829 2007 000106 R CHIP...

Page 39: ... 1 SA PFRE1 2001 000780 R CARBON 470OHM 5 1 8W AA TP 1 1 SA PFRE2 2001 000221 R CARBON 1 2KOHM 5 1 8W AA TP 1 1 SA PFRZ1 2001 000429 R CARBON 1KOHM 5 1 8W AA TP 1 8 1 SA PGCE1 2401 001358 C AL 470uF 20 10V WT TP 8x11 5m 1 SA PGCE2 2307 000103 C FILM LEAD PCF 100nF 5 50V TP 1 SA PGDE1 0402 001195 DIODE RECTIFIER F1T4 400V 1A DO 1 SA PGRE1 2001 000440 R CARBON 1OHM 5 1 8W AA TP 1 8X 1 SA PLCZ1 2301 ...

Page 40: ...V 52 4 1 SNA JP13 3811 000389 WIRE NO SHEATH CU SPCW 300V 52 4 1 SNA JP14 3811 000389 WIRE NO SHEATH CU SPCW 300V 52 4 1 SNA JP15 3811 000389 WIRE NO SHEATH CU SPCW 300V 52 4 1 SNA JP16 3811 000389 WIRE NO SHEATH CU SPCW 300V 52 4 1 SNA JP17 3811 000389 WIRE NO SHEATH CU SPCW 300V 52 4 1 SNA JP18 3811 000389 WIRE NO SHEATH CU SPCW 300V 52 4 1 SNA JP19 3811 000389 WIRE NO SHEATH CU SPCW 300V 52 4 1...

Page 41: ...1 SA W001 6003 000275 SCREW TAPTITE BH B M3 L10 ZP 5 SA W004 6003 000283 SCREW TAPTITE BH B M3 L8 ZPC Y 1 SA W004 6003 000283 SCREW TAPTITE BH B M3 L8 ZPC Y 6 SA W009 6003 000276 SCREW TAPTITE BH B M3 L10 ZP 4 SA W260 6003 001547 SCREW TAPTITE BH B TITE M3 L 2 SA W260 6003 001547 SCREW TAPTITE BH B TITE M3 L 1 SA W268 6003 000254 SCREW TAPTITE BH S M3 L6 ZPC 1 SA W271 6009 001411 SCREW SPECIAL TH ...

Page 42: ...8 1 This Document can not be used without Samsung s authorization Samsung Electronics 8 Block Diagrams 8 1 All Block Diagram 8 2 U302 Sti5100 Block Diagram 8 3 U301 DDRSDRAM Block Diagram 8 2 8 3 8 4 ...

Page 43: ...Block Diagrams 8 2 This Document can not be used without Samsung s authorization 8 1 All Block Diagram U301 U302 U401 Samsung Electronics ...

Page 44: ... Blitter and tile RAM Video Decoder USB 2 0 LMI ST20 C2 Core DCJ 4K SRAM 8K ICache Int Control 8K DCache Te etext omterface PTI Transport Steam merger TS0IN ser par TS2IN TS2OUT 1394OUT TS1IN par D1 2x I F SmCard DisEqC IR Tx Rx MAFE I F amd SiLabs PWM 4X PIO ILC 4x UARTs 3x SSCs DC0 Central DMA Audio decoder Audio DACs Analog audio out L R S PDIF out This Document can not be used without Samsung ...

Page 45: ...UX Refresh Counter Address Register A0 A12 BA0 BA1 Column address Conuter Latch Bank0 Memory Array 8192x512x32 Sense Amplifier Bank0 Row Address latch Decoder Bank Control Logic I O GATING DM Mask Logic Column Decoder Read Latch Write FIFO Drivers CK CK Mask Data Input Regiser COL0 Receivers DQ0 DQ15 LDM UDM LDQS UDQS COL0 COL0 DOS Generator DLL CK CK Bank1 Bank2 Bank3 8192 9 1 512 x32 16384 32 32...

Page 46: ...9 1 9 Wiring Diagram Samsung Electronics ...

Page 47: ...Wiring Diagram 9 2 MEMO Samsung Electronics ...

Page 48: ...10 1 10 PCB Diagrams 10 1 Main PCB 10 2 Front PCB 10 3 S M P S PCB 10 2 10 5 10 6 Samsung Electronics ...

Page 49: ...PCB Diagrams 10 2 Samsung Electronics 10 1 Main PCB Sti5100 U301 U701 U1001 COMPONENT SIDE Loc X Y U301 B 3 U1001 C 1 U701 E 1 ...

Page 50: ...gital Audio Signal at R714 Analog Audio Out at Pin28 27 Audio Sgnal at Pin 32 33 ˇ CVBS at Pin 4 of U701 CVBS at Pin 36 44 of U701 ˆ Pin 40 of U701 Ø Pin 42 of U701 Pin 38 of U701 U603 Pin1 ATA Select U603 Pin11 ATA Address U604 U605 Pin2 ATA Data ...

Page 51: ...PCB Diagrams 10 4 Samsung Electronics CONDUCTOR SIDE ...

Page 52: ...PCB Diagrams 10 5 Samsung Electronics 10 2 Front PCB COMPONENT SIDE CONDUCTOR SIDE ...

Page 53: ...PCB Diagrams 10 6 Samsung Electronics 10 3 S M P S PCB COMPONENT SIDE ...

Page 54: ...PCB Diagrams 10 7 Samsung Electronics CONDUCTOR SIDE ...

Page 55: ...PCB Diagrams 10 8 Samsung Electronics MEMO ...

Page 56: ...1 8 11 9 11 10 11 11 11 12 11 13 For schematic Diagram Resistors are in ohms 1 8W unless otherwise noted Note Special note Most semiconductor devices are electrostatically sensitive and therefore require the special handling techniques described under the electrostatically sensitive ES devices section of this service manual Note Do not use the part number shown on this drawing for ordering The cor...

Page 57: ...Schematic Diagrams 11 2 This Document can not be used without Samsung s authorization Samsung Electronics 11 1 S M P S S M P S PCB ...

Page 58: ...d without Samsung s authorization Samsung Electronics 11 2 Tuner Main PCB Sheet 1 of 10 I2C_Data TS DATA ˇ TS CLK Œ I2C_CLK These are the waveforms of DCB P850R P850RS P850Z P850ZS Caution There can be some differences Voltage Frequency stc among cameras ...

Page 59: ...Schematic Diagrams 11 4 This Document can not be used without Samsung s authorization Samsung Electronics 11 3 DDR Interface Main PCB Sheet 2 of 10 ...

Page 60: ...Schematic Diagrams 11 5 This Document can not be used without Samsung s authorization Samsung Electronics 11 4 Flash Interface Main PCB Sheet 3 of 10 ...

Page 61: ...e used without Samsung s authorization Samsung Electronics 11 5 TS Interface USB2 0 JATG Main PCB Sheet 4 of 10 Œ USB These are the waveforms of DCB P850R P850RS P850Z P850ZS Caution There can be some differences Voltage Frequency stc among cameras ...

Page 62: ...thout Samsung s authorization Samsung Electronics 11 6 ATA Iterface Main PCB Sheet 5 of 10 Œ ATA Address ATA Select ˇ ATA Data These are the waveforms of DCB P850R P850RS P850Z P850ZS Caution There can be some differences Voltage Frequency stc among cameras ...

Page 63: ...amsung Electronics Video Audio 11 7 AV Switch Main PCB Sheet 6 of 10 Œ B out R out ˇ G outa CVBS_1 ˆ Audio L R B_1 OUt G_1 out R_1 out CBVS_4 Ø Digital Audio These are the waveforms of DCB P850R P850RS P850Z P850ZS Caution There can be some differences Voltage Frequency stc among cameras ...

Page 64: ...Schematic Diagrams 11 9 This Document can not be used without Samsung s authorization Samsung Electronics Video Audio 11 8 AV Output SCART Main PCB Sheet 7 of 10 ...

Page 65: ...DE0 E14 VDDDE1 E7 GNDDE0 E12 GNDDE1 E9 VCCAPLL1 F19 VCCAPLL2 F18 GNDAPLL1 E20 GNDAPLL2 E19 VCCAFS F20 GNDAFS G18 GNDASFS G19 USBVDD K18 USBVSS K19 USBPLLVDD J18 USBPLLVSS J17 VDDADAC W19 GND NDADAC W18 VPLUSHADAC Y18 GND E5 GND E6 GND E15 GND E16 GND H8 GND H9 GND H10 GND H11 GND H12 GND H13 GND J8 GND J9 GND J10 GND J11 GND J12 GND J13 GND K8 GND K9 GND K10 GND K11 GND K12 GND K13 GND L8 GND L9 G...

Page 66: ...Schematic Diagrams 11 11 This Document can not be used without Samsung s authorization Samsung Electronics 11 10 S Card Power Main PCB Sheet 9 of 10 ...

Page 67: ...Schematic Diagrams 11 12 This Document can not be used without Samsung s authorization Samsung Electronics 11 11 Reset RS232 EEPROM Main PCB Sheet 10 of 10 ...

Page 68: ...Schematic Diagrams 11 13 This Document can not be used without Samsung s authorization Samsung Electronics 11 12 Front Front PCB ...

Page 69: ...Schematic Diagrams 11 14 Samsung Electronics MEMO ...

Page 70: ...Samsung Electronics 12 1 12 Operating Instructions ...

Page 71: ...Operating Instructions 12 2 Samsung Electronics ...

Page 72: ...Operating Instructions 12 3 Samsung Electronics ...

Page 73: ...Operating Instructions 12 4 Samsung Electronics ...

Page 74: ...Operating Instructions 12 5 Samsung Electronics ...

Page 75: ...Operating Instructions 12 6 Samsung Electronics ...

Page 76: ...n Splitter receives the RF signal from antenna input at rear panel ANT IN The received RF input signal split two ways by splitter for input of two tuners and RF out at rear panel To boost the divided RF signal 5V is supplied 13 1 2 Block Diagram Tuner in 5V Splitter Booster RF OUT AN IN fig 13 1 ...

Page 77: ...ck and QAM Demod block Function of tuning block tunes the channel from 51 to 858MHz input RF signal and makes the IF 36 125MHz which is sent QAM Demod block Function of QAM Demod block makes the MPEG 2 TS Transport Stream by QAM demodulation TS is consists of D at a 0 7 Sync Er r or Val i d and Cl ock signals Tuner is controlled by I2C fig 13 2 ...

Page 78: ...SFlash SDRAM peeripheral Memory bus Request grant FMI PAL NTSC SECAM TV out Blitter and tile RAM Video Decoder USB 2 0 LMI ST20 C2 Core DCJ 4K SRAM 8K ICache Int Control 8K DCache Te etext omterface PTI Transport Steam merger TS0IN ser par TS2IN TS2OUT 1394OUT TS1IN par D1 2x I F SmCard DisEqC IR Tx Rx MAFE I F amd SiLabs PWM 4X PIO ILC 4x UARTs 3x SSCs DC0 Central DMA Audio decoder Audio DACs Ana...

Page 79: ...graphics video and audio buffers It provides 16 bit wide DDR SDRAM support only at up to 166 MHz 1 Local memory interface LMI The LMI is a 16 bit wide DDR SDRAM interface with a peak bandwidth of 664 Mbyte s 166 MHz It supports one bank of 128 Mbit 256 Mbit or 512 Mbit DDR SDRAM The LMI provides a fully cacheable address space for data and instructions with data cacheability controlled in 512 Kbyt...

Page 80: ... TS0IN input is by default a serial transport input However it may be extended to a full parallel input by using additional PIO pins alternatively used as the second smartcard interface Multiplexing in front of the merger block provides a bypass route to allow for CableCard and DVB CI support This provides a parallel loop back path between TS0 and TS2 where the normally serial TS0 is augmented usi...

Page 81: ... using the following ciphers DES ECB DES CBC including DVS 042 and cipher text stealing termination block handling DVB CSA NDS specific streams can also be supported for integrated ICAM functionality The PTI has a section filter core that filters DVB and DIRECTV standard sections Four filtering modes are available wide match mode 48x 16 byte filters long match mode 96x 8 byte filters positive nega...

Page 82: ...x2 and zoom out x1 2 hardware unroll and wipes and fading to background color 3 OSD plane The OSD plane is managed as a set of horizontal bands with a specification comprising configuration bitmap and for CLUT formats palette information for each region The OSD operates in one of two modes palette mode or true color mode Palette mode Each region can be independently specified with a resolution of ...

Page 83: ...U T 601 aspect ratio displays are supported in all standards and square pixel displays in all standards except when using SECAM mode The digital encoder performs closed caption CGMS WSS teletext and VPS encoding and allows Macrovision 7 01 6 1 copy protection Two integrated tri DACs provide six analog TV outputs on which it is possible to output either S VHS Y C CVBS RGB or S VHS Y C CVBS YUV or Y...

Page 84: ...erface and buffered in memory via DMA Audio datastream controller The audio datastream controller receives buffers and reformats audio data It handles up to three audio data flows concurrently It receives a raw PCM stream from an external source via the PCM input interface or receives a compressed data stream from an internal source such as the PTI and stores this in a memory buffer via DMA This i...

Page 85: ...pable direct memory access controller that supports the following Fast 2 D unaligned memory to memory transfers of graphics and stills Real time stream transfers to and from memory with or without pacing These channels are suitable for transfers with external peripherals HDD and for audio and video stream transfers within the STi5100 fig 13 5 ...

Page 86: ... with a further 1 5 ports mapped to transport pins 1 PWM module A multichannel infrared blaster decoder interface module A modem analog front end interface MAFE DVB common interface support CableCard support Fully integrated digital clock recovery for MPEG replacement for VCXO USB 2 0 host OHCI EHCI compliant DiSEqC 2 0 control support interface to STMicroelectronics LNBP21 PSU controller or a dis...

Page 87: ...led select the memory device OE is the data output D 15 0 control and when active drives the selected memory data onto the I O bus WE must be at VIH Programming Operation Byte Word Program Byte Word program is executed by a two cycle command sequence Byte Word program setup standard 0x40 or alternate 0x10 is written followed by a second write that specifies the address and data latched on the risi...

Page 88: ...lock Address On the next write a device start address is given along with the write buffer data Subsequent writes provide additional device addresses and data depending on the count All subsequent addresses must lie within the start address plus the count Internally this device programs many flash cells in parallel Because of this parallel programming maximum programming performance and lower powe...

Page 89: ...put Buffer Program Erase Vdtage Switch Write Shate Machine Commend User Interface Y Decoder Address Counter Address Latch Input Buffer A MAX MIN Data Comparator A 2 0 Status Register Query Identifier Register Multiplexer I O Logic CE Logic 32 Mbit Thirty two 64 Mbit Sixty four 128 Mbit One hundred twenty eight 128 Kbyte Blccks Data Register Write Buffer Output Latch Multiplexer Y Gating X Decoder ...

Page 90: ...rential clock inputs CK and CK Four internal banks for concurrent operation Data mask DM for write data DLL aligns DQ and DQS transitions with CK transitions Commands entered on each positive CK edge data and data mask referenced to both edges of DQS Burst Lengths 2 4 or 8 CAS Latency 2 2 5 3 Auto Precharge option for each burst access Auto Refresh and Self Refresh Modes RAS lockout supported tRAP...

Page 91: ...erred to as the positive edge of CK Commands address and control signals are registered at every positive edge of CK Input data is registered on both edges of DQS and output datais referenced to both edges of DQS as well as to both edges of CK Read and write accesses to the DDR SDRAM are burst oriented accesses start at a selected location and continue for a programmed number of locations in a pro...

Page 92: ...h Counter Address Register A0 A12 BA0 BA1 Column address Conuter Latch Bank0 Memory Array 8192x512x32 Sense Amplifier Bank0 Row Address latch Decoder Bank Control Logic I O GATING DM Mask Logic Column Decoder Read Latch Write FIFO Drivers CK CK Mask Data Input Regiser COL0 Receivers DQ0 DQ15 LDM UDM LDQS UDQS COL0 COL0 DOS Generator DLL CK CK Bank1 Bank2 Bank3 8192 9 1 512 x32 16384 32 32 32 16 16...

Page 93: ...ting at the reference clock frequency The available output signals are Y C CVBS R G and B which are connected to Video Audio switching control IC STV6412 through filter circuit 13 5 1 Block Diagram Video out fig 13 8 VCR SCART TV SCART STV6412 Audio Audio Switch IC STI5100 Video DAC of Main Processor Y Fiter C Fiter CVBS Fiter R Fiter G Fiter B Fiter CVBS CVBS Y C R G B ...

Page 94: ... source for SPDIF The level of analog audio L and R signals is small so these signals go to amp IC BA4560 The audio signal output is connected with audio and video switching IC STV6412 13 6 1 Block Diagram Audio Out fig 13 9 SPDIF VCR SCART TV SCART L L L L R R R R SPDIF STV6412 Vidio AMP STV6412 Audio DAC of Main Processor ...

Page 95: ...7816 3 standard Limited support for synchronous smartcards can be provided in the software by using the PIO bits to provide the clock reset and I O functions on the card interface Smartcard interfaces are supported for the STi5100 This interfaces automatically detects and removes power to the smartcard when smartcard removal is detected 13 7 1 Block Diagram Smart Card fig 13 10 ...

Page 96: ...rovides the USB 2 0 Host This function supports that MP3 and JPEG files save to internal HDD from external USB memory MP3 Player and DSC 13 8 1 Block Diagram USB fig 13 11 USB CON D D VBUS LM3526 H VBUS Controller STi5100 USB Interface of Main Processor D D USB_PWR USB_OVRI USBL C6 2P6 ...

Page 97: ...Circuit Operating Descriptions 13 22 Samsung Electronics MEMO ...

Page 98: ... a digital compressed format The major advantage of MPEG compared to other video and audio coding formats is that MPEG files are much smaller for the same quality This is because MPEG uses very sophisticated compression techniques MPEG is an encoding and compression system for digital multimedia content defined by the Moving Picture Experts Group MPEG MPEG 2 extends the basic MPEG system to provid...

Page 99: ...r digital TV At the time DVB was being developed in Europe a parallel programme of standards and equipment development was also going on in the U S A by the Advanced Television Systems Committee ATSC ATSC is slightly different to DVB obviously the U S was not too worried about this for years they have lived with an insipid TV standard called NTSC which has lead to slightly different TV market Amon...

Page 100: ...e displayed on the entire TV screen and another program or programs will be displayed in individual smaller squares on the screen Picture in Picture is a function of the TV that requires two independent tuners to supply the large and the small picture Two tuner PiP TVs have a second tuner built in for this purpose single tuner PiP TVs however require the use of an external tuner to provide the sec...

Page 101: ... D Digital 2 C Cable 3 B Broadcasting 4 P PVR Personal Video Recorder 5 8 SD High end Model 6 5 2005 Generation 7 0 Basic 3 Derivation 8 CAS name 1 R Irdeto 2 Z Conax 9 None Black Color S Silver Color D C B P 8 5 0 R S Fig 14 1 14 2 Model Declaration ...

Search results

Summary of Contents for DSB-S300G

Reviews:

Brands by name

Popular brands

Samsung DSB-S300G, Service Manual

Search results

Summary of Contents for DSB-S300G

Reviews:

Brands by name

Popular brands