Manhattan Computer Products ST 250 ユーザーズマニュアル
15
TROUBLE SHOOTING GUIDE
If you suspect there is a problem with your receiver, please check the following trouble shooting guide before
calling a Manhattan authorised service agent.
WARNING! Do NOT attempt to repair the receiver yourself. Tampering with the receiver may
result in fatal electric shock and will invalidate your warranty.
If you suspect there is a problem with your receiver, please check the following trouble shooting guide before
calling a Manhattan authorised service agent.
WARNING! Do NOT attempt to repair the receiver yourself. Tampering with the receiver may
result in fatal electric shock and will invalidate your warranty.
Symptoms --- Possible cause / solutions
Front display not lit --- Check that the mains lead is plugged into the power socket. Check that your TV is
tuned for the correct channel or is switched to correct AV input.
No picture or sound or any menus --- No signal. Channel is scrambled. The antenna is not in correct
position. Check LNB wire is not damaged or shorting. Check LNB may be faulty. Unplug receiver from power
socket and retry.
Interference, on picture, using Modulator output --- Local terrestrial TV interference. Switch the output
channel to different one then re-tune your TV. Select the appropriate ‘TV Standard’ using TV Settings menu.
Bad picture with blocking or frozen --- Signal weak or noisy. Check signal quality. Antenna not in correct
position
Not responding to remote control --- Check the batteries in your remote control. Replace with new.
You have lost or forgotten your password --- Apply master password or contact your Manhattan dealer.
Front display not lit --- Check that the mains lead is plugged into the power socket. Check that your TV is
tuned for the correct channel or is switched to correct AV input.
No picture or sound or any menus --- No signal. Channel is scrambled. The antenna is not in correct
position. Check LNB wire is not damaged or shorting. Check LNB may be faulty. Unplug receiver from power
socket and retry.
Interference, on picture, using Modulator output --- Local terrestrial TV interference. Switch the output
channel to different one then re-tune your TV. Select the appropriate ‘TV Standard’ using TV Settings menu.
Bad picture with blocking or frozen --- Signal weak or noisy. Check signal quality. Antenna not in correct
position
Not responding to remote control --- Check the batteries in your remote control. Replace with new.
You have lost or forgotten your password --- Apply master password or contact your Manhattan dealer.
SPECIFICATI
TUNER
Input Connector
Input Connector
F-type IEC 169-24 Female
Frequency Range
950MHz to 2150MHz
Input Impedance
75 Ohm
Signal Level
-25 to - 65 dBm
LNB Power & Polarization Vertical +14V, Horizontal +18V (600mA Max. with Overload Protection)
LNB Control
LNB Control
22KHz … 4 KHz, Tone burst A/B and DiSEqC 1.2
22 KHz Tone Amplitude
0.6Vpp (…0.2V)
Input Symbol Rate
1~45 Msps
FEC Decoder
Auto, 1/2, 2/3, 3/4, 5/6, 7/8
SYSTEM
Transmission Standard
Transmission Standard
DVB MPEG-2
Input Data Rate
Max 15Mb/s
Aspect Ratio
4:3, 16:9
Video Resolution
720 x 480 NTSC, 720 x 576 PAL
Audio Decoding
MPEG Layer 1 and 2
Audio Mode
Single channel / Dual Channel/Joint Stereo / Mono
Sampling Rate
32KHz, 44.1KHz, 48KHz, 96KHz,
COMMON INTERFACE
Slots
Slots
2 slots type 1 and type 2
PCMCIA
DVB Common Interface Standard
IRDETO EMBEDDED CI
Card Slot
Card Slot
1 Slot DVB Common Interface Standard
PVR READY
To fit 40 - 120 GB Hard Disk Drive
CONNECTORS
CVBS
CVBS
1 PHONO RCA
Audio Output
2 x PHONO (L, R) / RCA
Digital Audio Output
1 PHONO RCA (S/P DIF)
+12V Output 1 PHONO RCA (+12Volts 100mA Max)
Data Interface
1 RS232 (Bit Rate: 115,200 baud Connector: 9-pin D-sub type)
RF connectors
75 Ohm IEC 169-2 Male/Female
RF MODULATOR
Frequency
Frequency
60MHz to 72 MHz
Channel Range
CH3 to CH4
TV standard
NTSC M
SPECIFICATIONS