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HSS-730/830 & UFD505/515 SERVICE MANUAL
3.5.4. RCA Cinch Connector
The MPEG stereo audio and CVBS video and digital audio(SPDIF) are available through four
cinch connectors.
3.5.5. RF Modulator (Option)
The RF modulator takes the mono audio and CVBS video internally generated by the STB, converts
them to an UHF channel selected by the user and then adds this channel to all terrestrial channels
coming in from the terrestrial antenna. That is, the RF modulator outputs all terrestrial channels
where the STB generated CVBS and mono audio becomes one channel within the UHF channels 21
to 69 range.
The input connector is an IEC 169-2 female, and the output is an IEC-169-2 male connector.
3.5.6. Power Connector Configuration
PIN number
SMPS
Regulator
LNB22V
Color
Yellow
White
Red
Black
Name
1
Standby 5V
2
Standby 3.3V
3
VCC
4
GND
5
Power 8V
6
Power 12V
7
Power 22V
8
Power 30V
9
GND
10
Power control
11
GND
STBY5V
STBY3V3
VCC5V
POWER8V
ANALOG12V
LNB22V
POWER30V
14/18V
LM317M
Description
Video (CVBS)
Audio left
Audio right
Digital Audio (SPDIF)
Description
5V in standby mode
3.3V in standby mode
Main 5V
Ground
8V
Analog 12V
LNB 22V
30V
Ground
Main Power control 0:0ff, 5V:on
Ground
STBY3V3
POWER8V
VCC5V
HDT DVB SATELLITE STB
Regulator
STBY2V5
AS1583
(Diode
SBYV27-200)
Regulator
NIM5V
7805A
Regulator
POWER3V3
AME1117
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