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1
A
Power supply for DVB-T Antenna for Europe
Circuit configuration
MAIN BLOCK Assy
V+5_1V_D
_ANT_POW
DVB-T Tuner
B
Specifications for port monitoring
Port Name
SD/PD Indication
ANT_POW_DET
DTB antenna
short-circuited
C
Conditions of circuit reset
The circuit can be reset by unplugging then plugging the power cord back in (it will not be reset by Standby ON/OFF).
Power supply for DVB-S Antenna for Europe
Circuit configuration
Note: Specifications for the output of warning-message indication will be added in the future.
D
MAIN BLOCK Assy
V+LNB
DVB-S Tuner
E
Specifications for port monitoring
Port Name
SD/PD Indication
––
S2 antenna
short-circuited
Conditions of circuit reset
The circuit will be automatically reset after an error, such as short-circuiting of the antenna, is resolved
and the unit is restored.
F
68
1
2
V+5_1V_D
Overcurrent
ON/OFF
Detection
H: ON
L: OFF
Latch
Hold "L" at
the short-circuit.
Determination Condition
Warning message is displayed
when the signal is L (100 mS,
3 times)
LNB POWER IC
PWM
Controller
VoRX
I2C
Linear
Interface
Post-reg
Determination Condition
Notification from DTV (at
7404_I2C2, OR of OLF bit and
OTF bit of the LNB IC System
Register is 1)
2
3
V+3_4V_STB
ANT_POW_B
Inverter
H: OFF
L: ON
ANT_POW_DET
Monitoring
Monitoring conditions
Output of a warning message for 60 sec.
RST4 = H and ANT_POW_
B = L (Monitoring starts 1
sec after the above
conditions are established.)
V+12V
7404_I2C2_SCL
DTV RISC
7404_I2C2_SDA
Monitoring conditions
Output of a warning message for 60 sec.
RST4: "H" and during
Only while a satellite broadcast program is displayed on
reception of satellite
the main screen.
broadcast
KRP-M01
3
4
IF_UCOM
MAIN_UCOM
48
47
Operation
TXD_DT
MAIN_UCOM
RXD_DT
Operation
4

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