User Manual

DTB-H550F
ENG-47
ENG
DTB-H550F
ENG-46
DIGITAL TERRESTRIAL HDTV RECEIVER
TROUBLESHOOTING
Problem Possible cause Solution of the problem
No display LED on Power cord Power cord plug in correctly
the front panel; not plugged in correctly Back switch in correctly
No power supply
No pictures on the screen Receiver in Standby mode; Set receiver to “On”;
Video Cable not connected tightly Check connection and correct;
to video input of television;
incorrect channel or video Check channel and video output and
input selected on television correct (TV instruction manual)
No sound Audio cord connected Check connection and correct;
incorrectly;
Volume level = 0; Increase loudness on television set;
Muting active Press the MUTE key
Remote Control does not incorrect operation; Point remote control
operate directly towards the Receiver.
Batteries dead or inserted Replace batteries or insert correctly
incorrectly
Poor picture quality Signal strength too low Check the signal strength and quality in
the “Signal Detection” menu, correct
alignment of your antenna
On-Screen Error Message Antenna cable not connected Check connection and correct;
“Signal is weak” or not tight;
incorrect position of the Check position and correct,
antenna; Check the signal strength in
the “Signal Detection” menu
On-Screen Error Message Receiver not yet set Scanning of in “Channel Auto Scan”
“No Channels” or “Channel Manual scan” menu
DISPOSAL
The device, packaging material (e.g. Styrofoam) and the batteries must never be
disposed of with household refuse.
Please obtain appropriate information about the regulations in your community,
and dispose of all refuse in accordance with regulations at the separate locations
provided.
TECHNICAL SPECIFICATIONS
General Item Specification
Power supply Input Voltage AC110-240V~, 50/60Hz
Fuse rating 250V/T1.6 AH
Consumption max 20Watts
Dimension Size 351(W) X 60(H) X 226(D) mm
Weight 2.1Kg
Receiver Input Item Specification
DVB-T In Input Frequency Range 50 MHz ~ 862 MHz
Input Signal Level -78 dBm ~ -20 dBm, at 75
Ω
RF Connector Type DIN Connector Socket/Plug
Modulation Format COFDM
Channel Bandwidth 7MHz ( or 8MHz)
Digital Data out MPEG-2 TS ISO/IEC 13818-1
Loop Through 50 MHz ~ 862 MHz
Demodulator Type COFDM (DVB-T)
FFT 8K (or 2k)
Code Rate 1/2, 2/3, 3/4, 5/6, 7/8
Guard Interval 1/4, 1/8, 1/16, 1/32
Receiver Output Item Specification
Video Decoding MPEG-2 ISO/IEC 13818-2
Profile @ Level MPEG-2 MP@ML, MP@HL
Resolution 1080i, 720p, 576p, 576i
Video output Composite(RCA) 2ea,
S-Video (Y:1.0Vp-p, C:0.286Vp-p)
DTV output Component(YP
B P R ), RGB(D-SUB), DVI
Aspect Ratio 16:9, 4:3
Video Format PAL
Audio Decoding MPEG-1 ISO/IEC 11172-3 layer1&2
MPEG-2 Audio
Dolby Digital(AC-3)
Mode Single channel, Dual channel, Stereo,
Joint stereo
Sampling frequency 32, 44.1, 48KHz
Analog Audio output L/R(RCA) 2Ch
Digital Audio output Optical, Coaxial
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