Daewoo DSD-9230E User Manual

S/M No. : DSD9255M02✔ Caution : In this Manual, some parts can be changed for improving, theirperformance without notice in the parts list. So, if yo

9CIRCUIT OPERATING MANUALKEY NO KEY NAME CUSTOM CODE(H) DATA CODE(H) CUSTOM CODE(B) DATA CODE(B) K14 INFO E8 H 21 H 0001 0111 1000 0100

10CIRCUIT OPERATION MANUAL(1) StructureSTi5518 is a 1 chip including 32bit RISC CPU, A/V Demux, Video Encoder, Multi PIO and Cache RAM for the use oDV

11CIRCUIT OPERATION MANUAL(2) Reset Section.If the Low signal is read by Sti5518 Reset Pin, the Register value of all Sti5518 will be initialized. The

12CIRCUIT OPERATION MANUALThis section only provides summaries of individual function of each Port. Further discussion will be followed in individual

13CIRCUIT OPERATION MANUALNOTPGM_EN (PIO1_3)Flash ROM Write protect/ Program enable (Low) or Program disable (High)SLOW_S/W (PIO1_4)Checking the conne

14CIRCUIT OPERATION MANUALFollowing is the Memory MAP Table.EMI Bank 3 (FLASH)EMI Bank 2EMI Bank 1EMI Bank 0Shared SDRAMPeripheral configuration regis

15CIRCUIT OPERATION MANUALMemWaitWait signal is produced in external device when accessing SRAM and peripheral devices. Wait signal is maintained asOr

16CIRCUIT OPERATION MANUAL EMI Interface Timing

17CIRCUIT OPERATION MANUAL4. Front-End Interface(1) Tuner ModuleTuner and QPSK Demodulator are combined into one Module. Following feature shows the B

18CIRCUIT OPERATION MANUALData Parity No Error Uncorrectible Packet No Error BYTE CLK PACKET STR OUT ERROR BYTE DATA Parallel Data Output Timi

GENERAL INFORMATION...2CIRCUIT OPERATION MANUAL ...

19CIRCUIT OPERATION MANUALSTART Bit CLK PACKET D7 ERROR First bit of the packet Data Parity Parity Useful Data 1 Packet RS0 = 0 RS0 = 1 Ser

20CIRCUIT OPERATION MANUAL2) Loop ThroughSupports Loop Through for the Interface function of other Satellite Devices. That means, in other Satellite d

21CIRCUIT OPERATION MANUAL3) Color Bar CVBS, Y, C, signalsMA V32.88 1.23328.88 1.00012.011.804.008.000.4500.3000.1500.068MA V28.88 1.00017.075.270.640

22CIRCUIT OPERATION MANUAL1-4) Video OutputThere are 2 Video Output Port in the DSD-9255MP products. (TV Scart, RCA JACK)The output of R,G and B signa

23CIRCUIT OPERATION MANUALChart 81. SCART PINSPEC.1) PCM AudioAudio related output of the Sti5518 is made in the form of PCM format and AC3 Interface

24CIRCUIT OPERATION MANUAL PCM TimingAnalogue Audio Signals that are modified at Audio DAC are amplified by three times after going through Low PassFi

25CIRCUIT OPERATION MANUALA. Initialize multi-purpose PIO portB. STI5518 chip version detectionC. Set DMT default multi-purpose PIO portD. Initialize

26CIRCUIT OPERATION MANUAL--- DEVELOP driver configuration ---[UARTIO fitted][UNHOSTED NOT fitted][STREPORT fitted]--- MPEG driver

27CIRCUIT OPERATION MANUAL7) Teletext Driver & Process StartTeletext driver library v1.0 - Version of Apr 04 2000 at 01:34:03Creating Teletext VB

28FIXING ERRORS(1) No response of Display Boot signal.1. BOOTING LED ERRORStartNo Display LED signal.YESYESNONONONONONONONOYESYESYESYESYESYESYESAPower

2GENERAL INFORMATIONDigital Satellite Receiver is easy to use, and allows you to watch digital programs broadcasted via satellite. This instruction ma

29FIXING ERRORS(1) Locking Error2. Poor quality screenCheck the power status oftuner(30V,VCC_TUNER,3V3)30V, 3V3 voltage OK?Tr(Q808)OK?(VCC_TUNER)Repla

30FIXING ERRORS(2)Disabled screen after LockingYESYESNONONONOYESYESNOYESYESYESNOCheck the 3.3V power ofTuner(Ripple, Voltage)Fix the problemCheck Erro

31FIXING ERRORS(1) AUDIO ERROR3. Errors in Audio and VideoCheck the power status ofAudio DACEliminate problemsCheck the Input Signal PCMData, SCLK, LR

32FIXING ERRORS(2) VIDEO ERRORLED Booting OKSTi5518 CVBS out checkPin34Video buffer, Low PassFilter CheckConfirm and execute thefixing processConfirm

BOM LIST✐ CAUTION : In this Service Manual, some parts can be changed for improving theirperformance without notice in the parts list. So, if you need

34BOM LISTLOC PARTS_CODE PARTS_NAME PARTS_DESCR REMARKC314 HCBK104KBA C CHIP CERA 50V X7R 0.1MF K 1608C359 HCBK104KBA C CHIP CERA 50V X7R 0.1MF K 1608

35BOM LISTLOC PARTS_CODE PARTS_NAME PARTS_DESCR REMARKQ912 T2SA1980SF TR CHIP 2SA1980SFG-CAGQ913 T2SA1980SF TR CHIP 2SA1980SFG-CAGR101 HRFS101JBA R CH

36BOM LISTLOC PARTS_CODE PARTS_NAME PARTS_DESCR REMARKR308 HRFS103JBA R CHIP 1/16 10K OHM J 1608R309 HRFS682JBA R CHIP 1/16 6.8K OHM J 1608R310 HRFS

LOC PARTS_CODE PARTS_NAME PARTS_DESCR REMARKC272 CEXF1C470A C ELECTRO 16V RSM 47MF (5X7) TPC273 CEXE1C101E C ELECTRO 16V RM 100MF 5X11C351 CEXF1C220A

38BOM LISTLOC PARTS_CODE PARTS_NAME PARTS_DESCR REMARKIC802 1KA431AZ IC REGULATOR KA431AZ 1% TO-92L803 56C220K695 COIL CHOKE(CAP TYPE) 22UH K 9X11.1 (

3GENERAL INFORMATIONFOR YOUR SAFETY• Allow clear space of more than 10 cm from the top, back and both sides for sufficient ventilation.• Do not cover

39SCHEMATIC DIAGRAM

40SCHEMATIC DIAGRAM

41SCHEMATIC DIAGRAM

42SCHEMATIC DIAGRAM

43SCHEMATIC DIAGRAM

44SCHEMATIC DIAGRAM

45PARTS PLACEMENT(ARRANGEMENT)

46PARTS PLACEMENT(ARRANGEMENT)

47PARTS PLACEMENT(ARRANGEMENT)DSD-9255 FRONT DSD-9256 FRONT

48PARTS PLACEMENT(ARRANGEMENT)

4GENERAL INFORMATIONRemote ControlSwitches between the operational modeand Stand-by mode of the receiverSwitches between TV and AV modeUsed for variou

686, AHYEON-DONG MAPO-GUSEOUL, KOREAC.P.O. BOX 8003 SEOUL, KOREADAEWOO ELECTRONICS Corp.

5GENERAL INFORMATIONFRONT PANELREAR PANELTo switch ON the receiver orto switch standby.To access the programming menus.To display channel list in view

6GENERAL INFORMATIONProduct SpecificationTRANSMISSION STANDARDSLNB/TUNER INPUTSYSTEM RESOURCESVIDEO DECODERAUDIO DECODERPOWER SUPPLYREAR PANEL INTERFA

7CIRCUIT OPERATION MANUAL1. Block DiagramDSD-9230E BLOCK DIAGRAM DSD- 9280M Block Diagram CPU (STi5518) AUDIO D/A FLASH ROM (16Mbit) SDRAM (64Mbit

8CIRCUIT OPERATION MANUAL2. Interface(1) Remote controller Interface" POWER " CUSTOM CODE : E8 H DATA CODE : 15 H KEY NO KEY NAME CUSTOM