Daewoo DSD-9280M Manuale utente
S/M No. : DSD9280M01
✔ Caution :
In this Manual, some parts can be changed for improving, their
performance without notice in the parts list. So, if you need the
latest parts information,please refer to PPL(Parts Price List) in
Service Information Center (http://svc.dwe.co.kr).
DAEWOO ELECTRONICS Corp.
Mar. 2004
http : //svc.dwe.co.kr
Service Manual
Digital Satellite Receiver
MODEL :
DSD-9280M
123
456
789
MENU
INFO
0
/SAT EXIT
PR
OK
PR
EPG /AUD
RCL
TV/RADIO
GENERAL INFORMATION............................................................................................2
CIRCUIT OPERATION MANUAL.............................................................................................7
FIXING ERRORS....................................................................................................................28
BOM LIST...............................................................................................................................34
SCHEMATIC DIAGRAM.........................................................................................................39
PARTS PLACEMENT(ARRANGEMENT)..............................................................................46
1
CONTENTS
2
GENERAL INFORMATION
Digital Satellite Receiver is easy to use, and allows you to watch digital programs broadcasted via satellite.
This instruction manual will guide you through the initial installation of your receiver.
It also describes how to take full advantage of a wide range of features that are easily accessible.
Read this instruction manual carefully before installing your receiver.
MAIN FEATURES
•Small size and cost-effective
•High quality Digital Video & Audio
•Fully DVB compliant
•User friendly and easy-to use menu system
•Various channel editing function, on Channel Management. (favorite, move, lock, rename, delete and sort)
•User programmable Satellite & Transponder information
•Automatic search for newly added transponder (NIT search)
•Stores up to 4000 channels
•Support software upgrading through Serial port
•Plug-and-play data transfer system (DSR to DSR)
•Individual channel volume saving function
•Timer function
•Automatic reserved channel moving system
•Electronic Program Guide (EPG)
•Teletext function support
•Antenna Positioning Help features
•Support RGB and CVBS video output
•SCPC/MCPC receivable from C/Ku Band
•Multi LNB control by DiSEqC 1.0 and 22 KHz switching
•Motorized system control by DiSEqC 1.2* and USALS.
•256 color On-Screen-Display
* DiSEqCTM is a trademark of EUTELSAT.
3
GENERAL INFORMATION
FOR YOUR SAFETY
•Allow clear space of more than 10 cm from the top, back and both sides for sufficient ventilation.
•Do not cover the Digital Satellite Receiver nor place it on a unit that emits heat.
•Use a soft cloth and a mild solution of washing liquid to clean the casing
•Do not connect or modify cables when Digital Satellite Receiver is plugged in.
•Do not remove the cover.
•Do not allow the unit to be exposed to extreme heat, cold or humidity.
•Never allow liquid spray or other materials to come into contact with the inside of the Digital Satellite Receiver.
•This Unit is designed for continuous operation. Switching it off does not disconnect it from the mains(Stand-by). To
disconnect it from the mains, you have to unplug the mains.
UNPACKING
1 x Remote Control Unit (RCU) 1 x RCA Cable
2 x AAA battery (option)
1 x Instruction Manual 1 x DSR
GENERAL OPERATION
Throughout this manual you will notice that the operation of your Digital Satellite Receiver is based on a series of user
friendly On Screen Display menus.
These menus will help you to get the most out of your Digital Satellite Receiver And guide you through installation.
All function can be carried out by using the keys on the remote control.
The Digital Satellite Receiver is easy to use, and adaptable for future upgrades.
Note that new software may change the functionality.
If you have difficulties with the operation of your Digital Satellite Receiver, please refer to the relevant section of this
manual or call your dealer or customer service center for help.
123
456
789
MENU
INFO
0
/SAT EXIT
PR
OK
PR
EPG /AUD
RCL
TV/RADIO
4
GENERAL INFORMATION
Switches between the operational mode
and Stand-by mode of the receiver
Displays the menu on the screen
Returns to the previous menu or exit
window
Executes the selected item in the menu
screen, or enters the Desired value in any
input mode
Enter the number in the required menu
item or select a Channel number to watch
Change channel, or moves to the next
higher or lower item in the menu
Adjusts the volume, or moves to the left
or right item in the menu
Shows information of the current channel
Calls up the EPG (Electronic Program
Guide)
Mutes the sound, or change various audio
setting
Recall to the previous channel
Switches between TV and Radio mode
Used for various functions on some menu
1 2 3
4 5 6
7 8 9
MENU
INFO
0
/SAT EXIT
PR
OK
PR
EPG /AUD
RCL
TV/RADIO
MENU
EXIT
INFO
EPG
/AUD
RCL
TV/RADIO
OK
PR
PR
1 2 3
4 5 6
7 8 9
0
/SAT
Remote Control
5
GENERAL INFORMATION
FRONT PANEL
REAR PANEL
100~240V Power Input
Reset the STB
Connect to TV and VCR using a SCART cable
Connect Video to a TV using RCA jack, Connect Audio L/R to TV or Audio device
Serial : Connect to a PC for
S/W upgrade
LNB IN : Connect to
Satellite Antenna
6
GENERAL INFORMATION
Transmission Standards
LNB/Tuner Input
System Resources
Video Decoder
Audio Decoder
Power Supply
Rear Panel Interfaces
REMOCON TRANSMITTER
DVB, MPEG2
Connector IEC 169-24, Female-type
Input Frequency 950 ~ 2150MHz
Demodulation 2 Msps ~ 35Msps
Code rate QPSK
Max Current 400mA
Supply Voltage 13V/18V
DiSEqC 1.0, 1.2, USALS
Processor 32bit, 81 MHz
RAM 8 MB
ROM 2 MB
Video Standard ISO/IEC 13818-2(MPEG-2)
Profile & Level Main Profile@Main Level
Resolution 720 x 576 pixels for PAL
Aspect ratio 4:3 or 16:9
Audio format MPEG Layer I and II
Channel Mode Stereo, Mono Mode
Audio Signal Sample Rate 32, 44.1, 48 Ksps
Audio Signal bandwidth 15Hz ~ 20KHz
Bit Resolution 18 bits PCM for the audio sample
Type SMPS
Voltage & Frequency 100–240V~, 50/60Hz
Power Consumption 25W
Video Output RCA & Scart Jack
Audio Output RCA & Scart Jack
Data In/Out Serial Jack (RS232)
Satellite in IEC 169-24, Female, F-Type
Type R-40D(AAA)
Operating Distance Straight : 8m, Pointing Angle (30°) : 7m
Operating Life Time 200,000 Times Operating Without Load
Batteries 2 x 1.5V AAA
Product Specification
7
CIRCUIT OPERATING MANUAL
1. Block Diagram
DSD-9230E BLOCK DIAGRAM
DSD- 9280M Block Diagram
CPU
(STi5518) AUDIO D/A
FLASH ROM
(16Mbit)
SDRAM
(64Mbit)
Television
Satellite dish
TUNER
A/D
6bit
DUAL
LINK IC
QPSK
FEC
TV
SCART
RCA
RS-232
PORT
VIDEO
AUDIO
FRONT
SMPS
+5V
+3.3V
+12V
+30V
+22V
+7V
I
2
C BUS
POSITIONER
& SKEW
8
CIRCUIT OPERATING MANUAL
2. Interface
(1) Remote controller Interface
Recognize the REMOCON Code value after analyzing Interrupt Interval Time through PIO Port that reads the output
signal of the IR sensor.
MITSUBISH formats were used for the REMOCON signal. Following is the Timing Diagram for the MITSUBISH signal
format.
The signals are made up of Leader Code, Custom Code (8bit), Separator and Data Code (8bit). Following is the value
of the individual Key.
8.0 4
C
ustomco
d
e
8bit
D
ata
bi
t
8bit
6060
60
8.0 4.0
0.5
0.5
0.5
1
.5
Feature 3. MITSUBISH Format Timing
8.0 4 Custom code Data bit
8bit 8bit
60 60
60
8.0 4.0
0.5 0.5 0.5 1.5
MITSUBISH Format Timing
9
CIRCUIT OPERATING MANUAL
Chart 1. Remote controller Key Code
Key Function Hex Key Function Hex
Custom code 0x16 0x1C
Power 0x15 INF0 0x21
Mute 0x12 PR 0x17
1 0x01 PR 0x18
2 0x02 0x14
3 0x03 0x13
4 0x04 OK 0x11
5 0x05 EXIT 0x23
6 0x06 0x1D
7 0x07 EPG 0x24
8 0x08 PAUSE 0x1E
9 0x09 Audio-L/R 0x0D
0 0x00 ALT-AUDIO 0x0E
TV/RADIO 0x0A TXT 0x25
PR 0x20 UHF 0x26
MENU 0x22
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